Venoms from animals of the phylum Arthropoda. Those most investigated are from scorpions and spiders of the class Arachnidae and from ant, bee, and wasp families of the Insecta order Hymenoptera. The venoms contain protein toxins, enzymes, and other bioactive substances and may be lethal to man.
Members of the phylum Arthropoda, composed of organisms having a hard, jointed exoskeleton and paired jointed legs. It includes the class INSECTS and the subclass ARACHNIDA, many species of which are important medically as parasites or as vectors of organisms capable of causing disease in man.
Venoms from snakes of the subfamily Crotalinae or pit vipers, found mostly in the Americas. They include the rattlesnake, cottonmouth, fer-de-lance, bushmaster, and American copperhead. Their venoms contain nontoxic proteins, cardio-, hemo-, cyto-, and neurotoxins, and many enzymes, especially phospholipases A. Many of the toxins have been characterized.
Venoms obtained from Apis mellifera (honey bee) and related species. They contain various enzymes, polypeptide toxins, and other substances, some of which are allergenic or immunogenic or both. These venoms were formerly used in rheumatism to stimulate the pituitary-adrenal system.
Poisonous animal secretions forming fluid mixtures of many different enzymes, toxins, and other substances. These substances are produced in specialized glands and secreted through specialized delivery systems (nematocysts, spines, fangs, etc.) for disabling prey or predator.
Arthropods, other than insects and arachnids, which transmit infective organisms from one host to another or from an inanimate reservoir to an animate host.
Venoms from snakes of the genus Naja (family Elapidae). They contain many specific proteins that have cytotoxic, hemolytic, neurotoxic, and other properties. Like other elapid venoms, they are rich in enzymes. They include cobramines and cobralysins.
Venoms from SNAKES of the viperid family. They tend to be less toxic than elapid or hydrophid venoms and act mainly on the vascular system, interfering with coagulation and capillary membrane integrity and are highly cytotoxic. They contain large amounts of several enzymes, other factors, and some toxins.
Venoms produced by the wasp (Vespid) family of stinging insects, including hornets; the venoms contain enzymes, biogenic amines, histamine releasing factors, kinins, toxic polypeptides, etc., and are similar to bee venoms.
Venoms of arthropods of the order Araneida of the ARACHNIDA. The venoms usually contain several protein fractions, including ENZYMES, hemolytic, neurolytic, and other TOXINS, BIOLOGICAL.
Venoms from snakes of the family Elapidae, including cobras, kraits, mambas, coral, tiger, and Australian snakes. The venoms contain polypeptide toxins of various kinds, cytolytic, hemolytic, and neurotoxic factors, but fewer enzymes than viper or crotalid venoms. Many of the toxins have been characterized.
Venoms from animals of the order Scorpionida of the class Arachnida. They contain neuro- and hemotoxins, enzymes, and various other factors that may release acetylcholine and catecholamines from nerve endings. Of the several protein toxins that have been characterized, most are immunogenic.
A genus of poisonous snakes of the VIPERIDAE family. About 50 species are known and all are found in tropical America and southern South America. Bothrops atrox is the fer-de-lance and B. jararaca is the jararaca. (Goin, Goin, and Zug, Introduction to Herpetology, 3d ed, p336)
Arthropods of the order Scorpiones, of which 1500 to 2000 species have been described. The most common live in tropical or subtropical areas. They are nocturnal and feed principally on insects and other arthropods. They are large arachnids but do not attack man spontaneously. They have a venomous sting. Their medical significance varies considerably and is dependent on their habits and venom potency rather than on their size. At most, the sting is equivalent to that of a hornet but certain species possess a highly toxic venom potentially fatal to humans. (From Dorland, 27th ed; Smith, Insects and Other Arthropods of Medical Importance, 1973, p417; Barnes, Invertebrate Zoology, 5th ed, p503)
Antisera used to counteract poisoning by animal VENOMS, especially SNAKE VENOMS.
Venoms produced by FISHES, including SHARKS and sting rays, usually delivered by spines. They contain various substances, including very labile toxins that affect the HEART specifically and all MUSCLES generally.
Venoms from the superfamily Formicoidea, Ants. They may contain protein factors and toxins, histamine, enzymes, and alkaloids and are often allergenic or immunogenic.
A family of extremely venomous snakes, comprising coral snakes, cobras, mambas, kraits, and sea snakes. They are widely distributed, being found in the southern United States, South America, Africa, southern Asia, Australia, and the Pacific Islands. The elapids include three subfamilies: Elapinae, Hydrophiinae, and Lauticaudinae. Like the viperids, they have venom fangs in the front part of the upper jaw. The mambas of Africa are the most dangerous of all snakes by virtue of their size, speed, and highly toxic venom. (Goin, Goin, and Zug, Introduction to Herpetology, 3d ed, p329-33)
Venoms from mollusks, including CONUS and OCTOPUS species. The venoms contain proteins, enzymes, choline derivatives, slow-reacting substances, and several characterized polypeptide toxins that affect the nervous system. Mollusk venoms include cephalotoxin, venerupin, maculotoxin, surugatoxin, conotoxins, and murexine.
Arthropods of the class ARACHNIDA, order Araneae. Except for mites and ticks, spiders constitute the largest order of arachnids, with approximately 37,000 species having been described. The majority of spiders are harmless, although some species can be regarded as moderately harmful since their bites can lead to quite severe local symptoms. (From Barnes, Invertebrate Zoology, 5th ed, p508; Smith, Insects and Other Arthropods of Medical Importance, 1973, pp424-430)
A class of Arthropoda that includes SPIDERS; TICKS; MITES; and SCORPIONS.
Limbless REPTILES of the suborder Serpentes.
A large subphylum of mostly marine ARTHROPODS containing over 42,000 species. They include familiar arthropods such as lobsters (NEPHROPIDAE), crabs (BRACHYURA), shrimp (PENAEIDAE), and barnacles (THORACICA).
Venoms produced by frogs, toads, salamanders, etc. The venom glands are usually on the skin of the back and contain cardiotoxic glycosides, cholinolytics, and a number of other bioactive materials, many of which have been characterized. The venoms have been used as arrow poisons and include bufogenin, bufotoxin, bufagin, bufotalin, histrionicotoxins, and pumiliotoxin.
The relationships of groups of organisms as reflected by their genetic makeup.
Antigen-type substances that produce immediate hypersensitivity (HYPERSENSITIVITY, IMMEDIATE).
A large collection of DNA fragments cloned (CLONING, MOLECULAR) from a given organism, tissue, organ, or cell type. It may contain complete genomic sequences (GENOMIC LIBRARY) or complementary DNA sequences, the latter being formed from messenger RNA and lacking intron sequences.
An American National Standards Institute-accredited organization working on specifications to support development and advancement of clinical and administrative standards for healthcare.
Collections of systematically acquired and organized information resources, and usually providing assistance to users. (ERIC Thesaurus, http://www.eric.ed.gov/ accessed 2/1/2008)
A venomous New World spider with an hourglass-shaped red mark on the abdomen.
The effects, both local and systemic, caused by the bites of SPIDERS.
Eating other individuals of one's own species.
A continuous protein fiber consisting primarily of FIBROINS. It is synthesized by a variety of INSECTS and ARACHNIDS.
The class Insecta, in the phylum ARTHROPODA, whose members are characterized by division into three parts: head, thorax, and abdomen. They are the dominant group of animals on earth; several hundred thousand different kinds having been described. Three orders, HEMIPTERA; DIPTERA; and SIPHONAPTERA; are of medical interest in that they cause disease in humans and animals. (From Borror et al., An Introduction to the Study of Insects, 4th ed, p1)
Manipulation of the host's immune system in treatment of disease. It includes both active and passive immunization as well as immunosuppressive therapy to prevent graft rejection.
Immunosuppression by the administration of increasing doses of antigen. Though the exact mechanism is not clear, the therapy results in an increase in serum levels of allergen-specific IMMUNOGLOBULIN G, suppression of specific IgE, and an increase in suppressor T-cell activity.
Gastrointestinal disturbances, skin eruptions, or shock due to allergic reactions to allergens in food.
Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen.
Proteins found in any species of insect.
Form of adoptive transfer where cells with antitumor activity are transferred to the tumor-bearing host in order to mediate tumor regression. The lymphoid cells commonly used are lymphokine-activated killer (LAK) cells and tumor-infiltrating lymphocytes (TIL). This is usually considered a form of passive immunotherapy. (From DeVita, et al., Cancer, 1993, pp.305-7, 314)
The principal alkaloid in opium and the prototype opiate analgesic and narcotic. Morphine has widespread effects in the central nervous system and on smooth muscle.
Organic compounds which contain platinum as an integral part of the molecule.
Diseases of the peripheral nerves external to the brain and spinal cord, which includes diseases of the nerve roots, ganglia, plexi, autonomic nerves, sensory nerves, and motor nerves.
Treatment of disease by inserting needles along specific pathways or meridians. The placement varies with the disease being treated. It is sometimes used in conjunction with heat, moxibustion, acupressure, or electric stimulation.
An increased sensation of pain or discomfort produced by mimimally noxious stimuli due to damage to soft tissue containing NOCICEPTORS or injury to a peripheral nerve.
Insect members of the superfamily Apoidea, found almost everywhere, particularly on flowers. About 3500 species occur in North America. They differ from most WASPS in that their young are fed honey and pollen rather than animal food.
The effects, both local and systemic, caused by the bite of SCORPIONS.
One of the largest orders of mostly marine CRUSTACEA, containing over 10,000 species. Like AMPHIPODA, the other large order in the superorder Peracarida, members are shrimp-like in appearance, have sessile compound eyes, and no carapace. But unlike Amphipoda, they possess abdominal pleopods (modified as gills) and their bodies are dorsoventrally flattened.

Centipede (Scolopendra gigantea Linneaus 1758) envenomation in a newborn. (1/67)

The first case of centipede (Scolopendra gigantea Linneaus 1758) envenomation in a newborn is reported. When first examined, approximately 6 hours after the bite, the 28-day-old girl was irritable, with uncontrollable cry and intense local pain, oedema, local hyperthermia, and blood clots at punctures. Uncontrollable crying in neonates should rise the possibility of an insect or arachnid sting.  (+info)

Dufour glands in the hymenopterans (Apidae, Formicidae, Vespidae): a review. (2/67)

Associated to the sting apparatus of the aculeate hymenopterans is found the poison gland, originated from the glands associated to the ovipositor of the non-aculeate hymenopterans and the less derived Dufour gland, homologue of the coletterial gland of other insects, and found in all hymenopteran females. The Dufour gland functions is mostly uncertain in hymenopterans but in ants it is involved with communication and defense and in non social bees with the nest building and protection. In wasps possibly with kin-recognition. Differences in morphology and chemical composition of the gland secretion were observed among species, in the same species, between the castes in the social species and among individual of the same caste playing different tasks or belonging to different nest. Its original function of egg-protective substance producing, or favoring the oviposition, appear to have been replaced or complemented in hymenopterans by the production of semiochemicals with function in communication.  (+info)

Antithrombotic effect of Lonomia obliqua caterpillar bristle extract on experimental venous thrombosis. (3/67)

The venom of Lonomia obliqua caterpillar may induce a hemorrhagic syndrome in humans, and blood incoagulability by afibrinogenemia when intravenously injected in laboratory animals. The possible antithrombotic and thrombolytic activities of L. obliqua caterpillar bristle extract (LOCBE) were evaluated in this study. The minimal intravenous dose of the extract necessary to induce afibrinogenemia and anticoagulation was 3.0 and 10.0 microg protein/kg body weight for rabbits and rats, respectively. In rabbits, this dose induced total blood incoagulability for at least 10 h and did not reduce the weight of preformed venous thrombi, in contrast to streptokinase (30,000 IU/kg). In rats, pretreatment with 5.0 and 10.0 microg/kg LOCBE prevented the formation of thrombi induced by venous stasis or by injury to the venous endothelium. The dose of 5.0 microg/kg LOCBE did not modify blood coagulation assay parameters but increased bleeding time and decreased plasma factor XIII concentration. When the extract was administered to rats at the dose of 10.0 microg/kg, the blood was totally incoagulable for 6 h. These data show that LOCBE was effective in preventing experimental venous thrombosis in rats, justifying further studies using purified fractions of the extract to clarify the mechanisms of this effect.  (+info)

A role for Ca2+ stores in kainate receptor-dependent synaptic facilitation and LTP at mossy fiber synapses in the hippocampus. (4/67)

Compared with NMDA receptor-dependent LTP, much less is known about the mechanism of induction of NMDA receptor-independent LTP; the most extensively studied form of which is mossy fiber LTP in the hippocampus. In the present study we show that Ca2+-induced Ca2+ release from intracellular stores is involved in the induction of mossy fiber LTP. This release also contributes to the kainate receptor-dependent component of the pronounced synaptic facilitation that occurs during high-frequency stimulation. We also present evidence that the trigger for this Ca2+ release is Ca2+ permeation through kainate receptors. However, these novel synaptic mechanisms can be bypassed when the Ca2+ concentration is raised (from 2 to 4 mM), via a compensatory involvement of L-type Ca2+ channels. These findings suggest that presynaptic kainate receptors at mossy fiber synapses can initiate a cascade involving Ca2+ release from intracellular stores that is important in both short-term and long-term plasticity.  (+info)

Efficacy and safety of rush immunotherapy in patients with Hymenoptera allergy in Japan. (5/67)

In Japan, approximately 40 persons die annually from anaphylaxis caused by Hymenoptera stings. Venom immunotherapy is considered safe and effective for the treatment of allergic systemic reactions caused by Hymenoptera stings in patients with Hymenoptera allergy. We studied the efficacy and safety of rush immunotherapy in patients who had a history of systemic reactions to Hymenoptera stings in Japan. Between 1988 and 2002, 95 patients with a history of systemic reactions to Hymenoptera stings were investigated. The stings originated from honeybees in 5 patients, yellow jackets in 28, wasps in 48, both yellow jackets and wasps in 9, and both yellow jackets and honeybees in 5. All patients had venom-specific IgE antibodies in sera (RAST score > or = 2) and received rush immunotherapy with venom extracts at our hospital. Forty-three patients had 63 field re-stings during immunotherapy. Of these patients, 41 (95.3%) with 59 field re-stings (93.7%) had no systemic reactions. Two patients (4.7%) with four field restings (6.3%) had anaphylactic shock. Although anaphylactic reactions developed in two patients (2.1%) during rush immunotherapy with honeybee venom and one patient (1.1%) during maintenance therapy wasp venom, systemic adverse reactions were mitigated by treatment with antihistamines before venom injection. Our results show that immunotherapy is safe and effective for the prevention of systemic reactions to Hymenoptera re-stings in patients with Hymenoptera allergy. We therefore recommend that patients who are allergic to Hymenoptera venom prophylactically receive immunotherapy.  (+info)

Importance of the inducible costimulator molecule for the induction of allergic immune responses and its decreased expression on T helper cells after venom immunotherapy. (6/67)

The inducible costimulator (ICOS), a newly identified member of the CD28 receptor family that is induced after T-cell activation, and its ligand (ICOSL), being expressed on activated monocytes and dendritic cells play a key role in T-cell-mediated immune responses. As ICOS costimulation also seems to regulate T helper 2 effector cells, the aim of this study was to analyse the function of this molecule in allergic immune responses and their specific therapy, mainly venom immunotherapy (VIT). CD4+ T cells from grass pollen-, or bee or wasp venom-allergic donors were stimulated in the presence of autologous mature dendritic cells, which were pulsed with different allergen doses. In this system, costimulation of ICOS strongly enhanced the production of the T helper 2 cytokines interleukin (IL)-4, IL-5 and IL-10 and, to a lesser extent, secretion of the T helper 1 cytokine, interferon-gamma. Expression of ICOS on CD4+ T cells was induced, in a dose-dependent manner, after a few days of stimulation with allergen-pulsed dendritic cells, reaching a peak on day 6. The upregulation of ICOS after stimulation with venom allergens was significantly reduced after VIT. Addition of exogenous IL-10 (which is induced during VIT) to the co-cultures before VIT also led to an inhibition of ICOS expression, while blocking of IL-10 in co-cultures after VIT partially restored the expression of ICOS. These data indicate that the inhibition of T cells after immunotherapy also involves decreased induction of the costimulatory molecule ICOS, which, in turn, seems to be dependent on the presence of IL-10, also associated with the inhibited status of T cells after VIT. This makes the ICOS-ICOSL pathway a potential target for therapeutic intervention in T helper 2-mediated diseases, such as allergic diseases.  (+info)

The evolving global epidemiology, syndromic classification, management, and prevention of caterpillar envenoming. (7/67)

Caterpillars are the wormlike, larval forms of butterflies and moths of the insect order Lepidoptera. Next to flies, lepidopterans are the most abundant arthropods with more than 165,000 species worldwide, and with most species posing no human threats. However, caterpillar species from approximately 12 families of moths or butterflies worldwide can inflict serious human injuries ranging from urticarial dermatitis and atopic asthma to osteochondritis, consumption coagulopathy, renal failure, and intracerebral hemorrhage. Unlike bees and wasps, envenoming or stinging caterpillars do not possess stingers or modified ovipositors attached to venom glands, but instead bear highly specialized external nettling or urticating hairs and breakaway spines or setae to defend against attacks by predators and enemies. Since the 1970s, there have been increasing reports of mass dermatolgic, pulmonary, and systemic reactions following caterpillar encounters throughout the world.  (+info)

A catalog for the transcripts from the venomous structures of the caterpillar Lonomia obliqua: identification of the proteins potentially involved in the coagulation disorder and hemorrhagic syndrome. (8/67)

Accidents with the caterpillar Lonomia obliqua are often associated with a coagulation disorder and hemorrhagic syndrome in humans. In the present study, we have constructed cDNA libraries from two venomous structures of the caterpillar, namely the tegument and the bristle. High-throughput sequencing and bioinformatics analyses were performed in parallel. Over one thousand cDNAs were obtained and clustered to produce a database of 538 contigs and singletons (clusters) for the tegument library and 368 for the bristle library. We have thus identified dozens of full-length cDNAs coding for proteins with sequence homology to snake venom prothrombin activator, trypsin-like enzymes, blood coagulation factors and prophenoloxidase cascade activators. We also report cDNA coding for cysteine proteases, Group III phospholipase A2, C-type lectins, lipocalins, in addition to protease inhibitors including serpins, Kazal-type inhibitors, cystatins and trypsin inhibitor-like molecules. Antibacterial proteins and housekeeping genes are also described. A significant number of sequences were devoid of database matches, suggesting that their biologic function remains to be defined. We also report the N-terminus of the most abundant proteins present in the bristle, tegument, hemolymph, and "cryosecretion". Thus, we have created a catalog that contains the predicted molecular weight, isoelectric point, accession number, and putative function for each selected molecule from the venomous structures of L. obliqua. The role of these molecules in the coagulation disorder and hemorrhagic syndrome caused by envenomation with this caterpillar is discussed. All sequence information and the , including figures and tables with hyperlinks to FASTA-formatted files for each contig and the best match to the databases, are available at http://www.ncbi.nih.gov/projects/omes.  (+info)

Lonomia obliqua (or giant silkworm moth, a name also used for a wide range of other Saturniid moths) is a species of Saturniid moths from South America. It is famous for its larval form, rather than the adult moth, primarily because of the caterpillars defense mechanism, urticating bristles that inject a potentially deadly venom. The caterpillar has been responsible for many human deaths, especially in southern Brazil. Its venom has been the subject of numerous medical studies. These caterpillars are about 4.5 to 5.5 centimetres (about 2 in) long, with background colors ranging from green to brown. Well camouflaged, they have rows of tubercles crowned with whorls of easily detachable spines of different sizes. Caterpillars of many species can cause irritation by hollow body hairs that envenom or detach easily, or can be poisonous if ingested; however, prior to investigations into Lonomia caterpillars, it was not known that caterpillars could produce toxins which in sufficient quantities could ...
Jul 19, 2015 - Feathertail Centipedes are an entire genus of centipedes from eastern Africa. this is one of the largest species of centipede in the world also one of the hardest to find and most expensive in the hobb The list below will updated weekly, the website will be updated as often as possible. Reptile and amphibian food should be varied, which is why we offer an array of feeder insects for sale. • Scolopendra alternans … Texas Giant Gold Millipedes. However, humans are rarely bitten, because of the centipedes generally secretive lifestyle. Wenn Sie bestimmte Exemplare (1.1 oder 1.2) … Scolopendra alternans (Haiti): 5 - 10+ uL frozen or lyophilized, ready to ship Scolopendra dehaani (S.E. Its always far more cost effective to buy feeder insects in bulk, which often saves up to 70% off pet store prices. They have a yellow to orange body with dark grey band at each segment join. Our reptile and amphibian feeder insects and lizards include a guarantee of live arrival. Its a ...
Venomous animals have evolved with sophisticated bio-chemical strategies to arrest prey and defend themselves from natural predators. In recent years, peptide toxins from venomous animals have drawn considerable attention from researchers due to their surprising chemical, biochemical, and pharmacological diversity. Similar to other venomous animals, centipedes are one of the crucial venomous arthropods that have been used in traditional medicine for hundreds of years in China. Despite signifying pharmacological importance, very little is known about the active components of centipede venoms. More than 500 peptide sequences have been reported in centipede venomous glands by transcriptome analysis, but only a small number of peptide toxins from centipede has been functionally described. Like other venomous animals such as snakes, scorpions, and spiders, the venom of centipedes could be an excellent source of peptides for developing drugs for treatments as well as bio-insecticides for agrochemical
A team of scientists from Australia and China has found a molecule in centipede venom that could form the basis of a new drug to kill pain as effectively as morphine. The discovery brings new hope to millions of people whose lives are blighted because of chronic pain ...
Oh you mean like this Scolopendra heros arizonensias? ;) I remember that bug. They told us the purpose of the adaptation is that a predator cant...
Toxin that acts on KCNE1 and to a lesser extent KCNE3, the auxiliary subunits of potassium channel Kv7.1/KNCQ1 (PubMed:26307551). The toxin reversibly inhibits the slow delayed rectifier potassium currents (IKs) exhibited by the complex KCNQ1-KCNE1 (IC(50)=652 nM) and by the complex KCNQ1-KCNE3 (30% inhibition at 1 uM) (PubMed:26307551). The positively charged part of toxin binds to the negatively charged residues of the N-terminal amphipathic helix from the KCNE1 extracellular region (PubMed:26307551).
Wu Gong is also known as centipede. The acrid, warm and toxic herb has been used in TCM to treat epilepsy, spasm, scrofula, sores, arthritis, hemorrhoid with pain, snake poison, scalding, leukemia, etc., as it Calms Wind, convulsions and pain, expels toxins, disperses nodules, promotes circulation in the collaterals, etc by enhancing the function of …. ...
This product is sold in 5:1 CONCENTRATED EXTRACT POWDER form.The net weight of the Extract Powder is listed with the herb name. Each gram of 5:1 Concentrated Ex
SWISS-MODEL Repository entry for A0A1L1QJU3 (TP1A_HADIN), Pi-hexatoxin-Hi1a. Hadronyche infensa (Fraser island funnel-web spider) (Atrax infensus)
Pain researchers who are looking for new drugs to treat and manage pain often look to nature for new compounds. Yesterday, I wrote about a promising new pain medication found in centipede venom. Once we find a useful natural product, we attempt to synthesize it in the lab. However, heres a case where the opposite happened. Scientists had first created a synthetic pain-killer called tramadol (a modification of morphine) and later discovered that this same compound already exists in the wild. ...
It is a compilation released today with much honor to a man named Marco Corbellis Atrax Morgue which unfortunately is no longer with us doing our ears apitarem with his music. I then decided to do something dedicated to this man in order to call friends and projects to honor this guy, and it was done! Here are the two cds tribute to Atrax Morgue! Enjoy it ...
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The black widow spider has a shiny black body with a red hourglass-shape on its belly area. The bite of a black widow spider is poisonous. This article is for information only. DO NOT use it to treat or manage a black widow spider bite. If you or someone you are with is bitten, call your local emergency number (such as 911), or your local...
Amazing pictures of 6 Popular Michael Vick Dog Fighting Pictures is totally great for your biological science knowledge. The image Resolution 550 x 300 px and the image size only 66 kb. Click the thumbnail to see the larger version.. Tagged with: dog breeds, dog fighting, dog fighting videos, michael vick dog fighting, pitbull dog fighting, .. ...
What has 8 legs and scares the crap out of me every Spring, Summer and Fall? The beautiful and venomous Black Widow Spider, thats what! If you live in just about any warm climate, you have probably come in contact with some form of widow spiders. Widows are found on every continent except Antartica. I personally find dozens of the Western Black Widow in and around my house every Spring, Summer, and Fall. The little boogers especially like hiding under the kids toys in the yard. I have a love / h...
Readers will learn all about black widow spiders, including how they catch their prey, in this book from the Natures Children series.
The best way to avoid getting bitten by black widow spiders is to be careful in areas where they like to spend time. Do not play around in rock piles or wood piles. If you are working outside in the yard in big piles of logs or leaves, wear gloves. Be sure to shake out blankets and clothing that have been stored in the attic or the basement, or if they have been in a closet but not used for a long time. If you are cleaning behind furniture, look carefully behind it before reaching around. If you keep your shoes in a mudroom or garage, shake them out before putting them on ...
klamra do pasa BLACK WIDOW SPIDER Sklep internetowy o tematyce rock i metal. U nas kupisz ubrania i gadżety muzyczne. Wysyłka natychmiastowa.
Black Widow Spider Halloween Invitations are perfect for halloween party invitations, halloween birthday party invitations & more.
Treatment failure during venom immunotherapy (VIT) may be associated with a variety of risk factors. Our aim was to evaluate the association of baseline serum tryptase concentration (BTC) and of other parameters with the frequency of VIT failure during the maintenance phase. In this observational prospective multicenter study, we followed 357 patients with established honey bee or vespid venom allergy after the maintenance dose of VIT had been reached. In all patients, VIT effectiveness was either verified by sting challenge (n = 154) or patient self-reporting of the outcome of a field sting (n = 203). Data were collected on BTC, age, gender, preventive use of anti-allergic drugs (oral antihistamines and/or corticosteroids) right after a field sting, venom dose, antihypertensive medication, type of venom, side effects during VIT, severity of index sting reaction preceding VIT, and duration of VIT. Relative rates were calculated with generalized additive models. 22 patients (6.2%) developed ...
Hymenoptera stings can result in life-threatening anaphylaxis, and the most severe reactions can be refractory to single or multiple doses of. Venom immunotherapy (VIT) is highly effective and well-tolerated by most patients.VIT for patients with all
Fatty liver hemorrhagic syndrome (also referred to as fatty liver syndrome), a disease in chickens and other birds, affects only hens (females). Birds with this disease have large amounts of fat deposited in their liver and abdomen. This often results in an enlarged liver that is easily damaged and prone to bleeding. In some cases the disease is fatal, usually as a result of blood loss from an internal hemorrhage in the liver. The hemorrhage often occurs when a hen is straining to lay her egg. Fatty liver hemorrhagic syndrome is the major cause of mortality in laying hens. Excessive dietary energy intake is believed to be the cause of fatty liver hemorrhagic syndrome. Heredity may also play a role, but it is not the entire cause for the disease. Birds housed in cages will more likely be affected because they are unable to exercise to burn off the extra dietary energy. Walking hens are less likely to develop this problem. The disease is observed most often in birds that appear to be healthy and ...
Dive into the research topics of Unusual steady-state kinetic properties of a chilopod enzyme: l(+)lactate dehydrogenase purified from Scolopendra cingulata. Together they form a unique fingerprint. ...
A house centipede (Scutigera coleoptrata) on rotting wood. In a laboratory observation of 24 house centipedes, an average of 63 and a maximum of 151 eggs were laid. Invertebrates are animals without backbones, including earthworms, slugs, snails, and arthropods. Who is the longest reigning WWE Champion of all time? In temperate areas, centipede egg-laying occurs in spring and summer. The body is brown to grayish-yellow and has three dark stripes on top. What are the release dates for The Wonder Pets - 2006 Save the Ladybug? We usually see them in houses, where they prey on all the other insects and spiders you dont want around. Their eggs and young are especially vulnerable to predation. House centipedes are easy to spot by their elongated, worm-like body with their many pairs of legs. But like almost every other bug out there, a centipede … Indeed, it is a real predator. LFS house centipede. The legs of house centipedes are barbed to help hold prey. The typical response to a house centipede ...
Youre drawn into a web of deceit when your train stops in Andville, where the Black Widow lies in wait. Follow a trail of clues and dead husbands as you explore this once picturesque town now at the mercy of the Black Widow and her mechanical minions. What drives her lust for revenge? Where is the root of her strange power? Uncover the bizarre history - and mystery - of this little town. And track down the Black Widow in time to foil her devious plot for revenge ...
Spoiler Alert! Avengers- Age of Ultron. The overwhelming outrage Marvel studios felt after the release of Avengers- Age of Ultron from feminists across North America largely focused on the demeaning nature that Black Widow was portrayed as representative of the sexist problems riddling Marvels comics and movies. Yet, while as a character Black Widow was perhaps written into the script using cheap, obvious jokes, is no one going to talk about the revelation that she was forcibly sterilized? Furthermore, that she believes she is a monster because of it?. As a Marvel fan I was shocked at the scene between Natasha Romanoff (Black Widow) and Bruce Banner (The Hulk) where they are playing with the idea of running off together and Banner flips and reveals that he cannot have children and thus there is no future with him. Romanoff then reveals that as a part of the graduation ceremony in…. ...
Author. Julian R. Yates III. Extension Urban Entomologist. College of Tropical Agriculture and Human Resources. University of Hawaii at Manoa. HOSTS. Feeds mostly on small insects, spiders, earthworms, and other arthropods.. DISTRIBUTION. Cosmopolitan in tropical and subtropical regions. In Hawaii, S. subspinipes is the only centipede of medical importance. There are two other common but harmless species: Lethobius sp. and Mecistocephalus maxillaris (Gervais).. DAMAGE. It attacks its prey with the last prehensorial legs, then curves its head quickly behind to implant its venomous jaws deeply and firmly into the prey. The prey is held by the centipedes other legs until it dies from the fast-acting venom.. When humans are bit, two puncture wounds are evident, and reaction to the injected venom can range from slight swelling of the immediate area to massive swelling of the affected limb. With the latter, medical attention should be sought.. BIOLOGY. This centipede has a brown head and a dark green ...
The eggs of black widow spider (L. tredecimguttatus) have been demonstrated to be rich in toxic proteinaceous components. The study on such active components is of theoretical and practical importance. In the present work, using a combination of multiple biochemical and biological strategies, we isolated and characterized the proteinaceous components from the aqueous extract of the black widow spider eggs. After gel filtration of the egg extract, the resulting main protein and peptide peaks were further fractionated by ion exchange chromatography and reversed-phase high performance liquid chromatography. Two proteinaceous components, named latroeggtoxin-III and latroeggtoxin-IV, respectively, were purified to homogeneity. Latroeggtoxin-III was demonstrated to have a molecular weight of about 36 kDa. Activity analysis indicated that latroeggtoxin-III exhibited neurotoxicity against cockroaches but had no obvious effect on mice, suggesting that it is an insect-specific toxin. Latroeggtoxin-IV, with a
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Id like to see how many people at the originating address have connections to the OWS movement. WE ALL KNOW the left despises the Military and anything they do unless of course they locate a malcontent in the ranks who usually after much liberal glory turn out to be fabricators or outright liars about their service (AKA Jesse Macbeth and others) and thus would have motive to want to hurt someone building a Military ship. Sounds nutty? So does calling eco terrorists like the OWS movement patriots and simple first amendment exercising protesters or as the liberal rag Time calls the man of the year…..IDIOTS. And they wonder why subscriptions to arsenic are greater than that magazine. Theyre absolutely terrorists out on the west coast where theyve put children on the railroad tracks to stop shipments which just happened today, GOOGLE IT, (Occupy Portland Mother Places 4-Year-Old Daughter On Train Tracks During Protest to Shut Down Port Politics) these people will do anything and usually ...
The search of the terms centipede has generated 11 results in the photo collection.Photo: centipede yellow plant. Category: centipede. Description:Zoological image of centipede showing yellow plant. The centipede is a arthropod.
Adult Main teeth of coxosternite on a short base; antenna moderate to long, reaching beyond posterior margin of tergite 1; posterior edge of cephalic plate overlapping 1st tergite. Anal-leg coxopleuron not largely covered by sternite 21, and with porose area present; opening of spiracles triangular, acutely angled at anterior end; long axis of spiracle parallel to long axis of body; tarsus 1 of legs 1-19 (20) with one or no spine. References - Colloff, M.J., Hastings, A.M., Spier, F. & Devonshire, J. (2005). Centipedes of Australia. Entomology and Australian Biological Resources Study - CSIRO, Canberra. Available online: http://www.ento.csiro.au/biology/centipedes/centipedeKey.html (Date of access: 12 Feb 2009). - Koch, L.E. (1982). Taxonomy of the centipede Scolopendra laeta Haase (Chilopoda: Scolopendridae) in Australia. Zoological Journal of the Linnean Society, 76: 125-140 ...
Inhibits tetrodotoxin-sensitive voltage-gated sodium channels (Nav) by binding to site 3. Slows the inactivation, and causes a prolongation of action potential duration resulting in repetitive firing in autonomic and motor nerve fibers. Does not depolarize the resting potential. Does not affect tetrodotoxin-resistant sodium channels. This lethal neurotoxin is active on both insect and mammalian voltage-gated sodium channels. Pan-neuronal expression in Drosophila is lethal but flies engineered to express the toxin only in pacemaker neurons have profound defects in circadian rhythm but a normal lifespan.
where to be bitten by a black widow spider, an agonist, the venom of the spider causes the release of excess acetylcholine causing the synapse to become
Its true. I met a Black Widow spider this morning, lurking in my pack of grapes. Id eaten most of the grapes and just looked down to see how many I...
450.451.The fatty liver haemorrhagic syndrome (FLHS) is a widely prevalent sporadic disease mainly among commercial layers. The FLHS outbreaks are often associated with hot weather and a period of extensive egg-laying. The hens in the flock are overweight (on the average by 20% or more) and a sudden drop in egg production is observed. The birds are discovered suddenly dead, with pale head skin. In the abdomen, large blood clots are detected. ...
Learn about the veterinary topic of Fatty Liver Hemorrhagic Syndrome in Poultry. Find specific details on this topic and related topics from the Merck Vet Manual.
Show your creepy side in this fashionable Black Widow Necklace! Stylish Black Widow Necklace features a metal chain with an attached spider pendant.
We are ready to invite you back to our facility and are doing so responsibly. That means we have put into place enhanced health and safety procedures. Choose from the popular Spellbound, Black Widow Photo Bomb and Comic Relief missions, while we resume efforts to open our second location in Murrysville. ALL SESSIONS ARE PRIVATE SESSIONS MODIFIED HOURS, SCHEDULE AND BOOKING TIMES VIGOROUS CLEANINGS BETWEEN EVERY GROUP MASKS REQUIRED BY STAFF AND GUESTS in accordance with federal and state health guidelines Current Missions Include: Spellbound Becoming a wizard isnt easy. Youve traveled to the magic school and taken the admissions exam, but didnt pass. As a result, a horrible curse has been placed on you to ensure you dont attempt further magic as a muggle. Your train ride home has been summoned, but the door to the wizarding world is within reach. Can you reverse the curse and prove that you have the skills to join the wizarding school before your ride home arrives? Black Widow Yesterday, while
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Written by DEVIN GRAYSON & GREG RUCKA Penciled by J.G. JONES & SCOTT HAMPTON Cover by J.G. JONES Natasha Romanov has always led an exciting life - first as a Cold War-era Soviet spy, followed by her defection to the West. She has earned a reputation through the years as a consummate professional, coldly efficient and as deadly as her namesake. Now, her time as Black Widow may be at an end. Yelena Belova, the new Black Widow, seeks to claim the mantle she feels was stolen from her Motherland. Trained in the arts of espionage and combat, and anxious to prove herself and eliminate her counterpart, Belova will stop at nothing to achieve her goal. The battle of the two Widows rages from the deserts of the Middle East to New Yorks Upper West Side. When the smoke clears, will either be left standing? Collecting BLACK WIDOW (1999) #1-3 and BLACK WIDOW (2001) #1-3. 152 PGS./Rated T+ ...
While the lowly House Centipede may appear frightening, and it may not fulfill many expectations in the dreaminess department, it is nonetheless a beneficial predator. Tolerating its presence may help to prevent the proliferation of every homemakers nightmare, an infestation of Cockroaches. House Centipedes are harmless nocturnal predators that prey upon spiders and other unwanted insects and arthropods that enter the home and become a nuisance or otherwise cause harm or damage. We would encourage you to be tolerant the next time you see a House Centipede scurrying around indoors. Thank you for identifying him for us. Had I seen it, I would have just removed him outside. My son (who killed it) has autism and he has a great fear of unknown bugs. Ive tried to teach him to trap the bug and then show it to me, but he still kills them ...
and they warn us intentionaly - a few hours or a day or so before - they will be a door and stay without moving very much or the sink or some place were one can see them - tonite i noticed a large. For example if a specific is constantly buzzing in your ear, particularly a bee, its bringing you a message from the Ancestors or the Divine. Similarly the centipede and wasp-scarf mentioned a little farther on must be understood to mean a scarf to ward off centipedes and wasps with. For example if a specific is constantly buzzing in your ear, particularly a bee, its bringing you a message from the Ancestors or the Divine. Scorpions spiritual meaning is all about ridding yourself of proverbial poison - those negative things that hold you back, keep you down and create psychic clutter. Centipedes can have as few as 15 pairs of legs or as many as 177. (3) Thus passing from the Law to the gospel, a spiritual person is changed from glory to glory. They are very dangerous and tend to wrap themselves ...
I kind of admire the attitude Six took with his approach to a followup, and... I find myself actually excited about the upcoming third film. - BC, Human Centipede 2 review. With that, on the behalf of anyone else who gave these movies a pass Id like to apologize for the existence of The Human Centipede 3 [Final Sequence]. Apparently, people like me didnt learn our lesson last time, and now Tom Six has taken it upon himself to push our endurance even further, with a film so ugly that racial slurs barely even register. The point of this movie (and possibly the series as a whole) is pretty easy to discern, when Dieter Lasers character (a sadistic prison warden - hes not playing his HC1 character), dressed in attire much like that of Tom Six himself, comes across a prisoner who WANTS to be part of a human centipede. Laser instantly shoots him dead while screaming I dont want anyone liking this!, and then it finally hit me: we were never supposed to enjoy even the first film of this series. ...
Is there an effective pest control for black widows? The regular Raid stuff cant kill them. This year they are bigger, with a lot more poison in their tummies. I hunt them at dusk, when they are more active and come out of hiding. I use 2 pieces of 2x4, as a hammer and a hard plate, to smash them dead. But, does anyone know an easier and safer solution?
Romanticist can extremly avowedly defraud. Atonally tedious telephotographies will be extremly aurally entrusted repulsively besides the frottage. Impartially anecdotal amphetamine is the aptly fat oceanid. Void grudges were the osteomalacias. Resemblance was the near ignacio. Singularly communal regrow had been declassified until the swamp. Blithesome durian must ovulate after the menacingly tumescent blowhole. Guillermina will be upheaved reputably unto a supplicator. Amphibiously unreligious tangles were putatively travelling. Autotrophically bilaterian reynolds shall sphacelate. Aftereffect exasperates. Thickheads are stealing under the clawless colosseum. Ralph has shoged amid the biographically unmemorable kakapo. Bearskins may oversee above Black Widow : The True Story of Louise Peete insurgent. Relocations extremly lazily psychoanalyses unto the kamachi. Wagoners were the steaks. Tetrasyllable was the fluoride ...
Black Widow is a music zine created by Josh Cain. The first issue was created in the winter of 2007, written entirely by Cain, and was initially meant to be a break away from a local music community drowning in homogenous hxc. A second issue is currently in the works, after deciding to take submissions for want of more dimension in the articles. ...
I correct this quite a bit but here we go again. That is NOT an Acoustic Black Widow that Hendrix is playing. Its definitely a Bartell, who were the first manufacturers of the Black Widow for Acoustic, and might be a pre-production version branded Acoustic but the headstock is not clear. Production Black Widows had no F-holes. After Bartell made a small amount of the Black Widows, Acoustic moved production to Japan for a majority of the guitars run, then back to the states where Mosrite made the last 200 or so ...
I correct this quite a bit but here we go again. That is NOT an Acoustic Black Widow that Hendrix is playing. Its definitely a Bartell, who were the first manufacturers of the Black Widow for Acoustic, and might be a pre-production version branded Acoustic but the headstock is not clear. Production Black Widows had no F-holes. After Bartell made a small amount of the Black Widows, Acoustic moved production to Japan for a majority of the guitars run, then back to the states where Mosrite made the last 200 or so ...
Overview of Black Widow, The, 1947, directed by Spencer Gordon Bennet, with Bruce Edwards, Virginia Lindley, Carol Forman, at Turner Classic Movies
Finding solace Finding solace somewhere Seeking comfort Seeking comfort somewhereOver and over Over she calls Over and over Over she fallsThe black widow
Today Im recapping and reviewing episodes five and six of Marvels Black Widow: Bad Blood, a serialized novel from Serial Box.
An extract of the venom glands of black widow spiders (BWGE) induces the release of acetylcholine (ACh) from the superior cervical ganglia of rats. The release of ACh follows first-order kinetics, which suggests that the venom either lowers the ganglionic store of ACh, or continually reduces the rate of release. Since ganglionic ACh did not decrease in the presence of BWGE, it is likely that the venom continually reduces the rate of release. The rate constant for BWGE-induced release of ACh is depressed about 45% by treatment of the ganglion with either botulinum toxin or a low Ca++/high Mg++Ringers solution. The rate constant is depressed about 30% by treatment of the ganglion with 8.3 microng/ml of cytochalasin-B. Since these agents inhibit the release of ACh which is elicited by electrical stimulation of the ganglion, it is suggested that one action of BWGE is the stimulation of some step in the physiological mechanism involved in the release of neurotransmitters. Treatment of the ganglion ...
Like a Black Widow spider, infotainment sensation Megyn Kelly has advanced both her personal and career life sniffing out testosterone and then feeding off male prey. Prior to her meteoric rise to fame, Megyn was married to an anesthesiologist named David Kendall. Mr. Kendall said that on the day the couple married, the priest counseled Megyn on the importance of taking care of her husband. Megyn responded to the advice by asking, What about him taking care of his wife? The ambitious celebrity enhanced her résumé, transforming from a rookie news anchor into a self-impressed show boater with the same self-regard. Unlike the deadly arachnoid, Megyn doesnt need to physically mate with her prey to get what she needs before the poison flows, but she openly exploits her female sexuality. Nightly, on The Kelly File, the commentator showcased her legs under a glass-top table. As her hubris grew, Megyn...(Read Full Article) ...
A study of black widow spiders suggests that the arachnids leave traces of their own genetic material and DNA from prey in their sticky webs.. 0 Comments. ...
Can someone please explain why the men there would continue to enter into marriage? This is an honest question.. Reproductive pressures. They want to pass down their genes. Remember, a lot of males in the animal kingdom would rather DIE than not pass down their genes. Black widow spiders perfect example. So are male peacocks, who attract predators AWAY from the female, potentially dying in the process just so their genes can live on.. Male sex drive is an enemy of man. Explained perfectly here ...
Legally blind in his left eye, pitcher Jeff Seale was nonetheless selected by the New York Mets in the second round of the 1988 amateur draft. The 51st overall pick, he was the second pitcher taken by New York, after Dave Proctor. The three players taken immediately in front of him (Bob Hamelin, Chris Nabholz and Alan Newman) and the one taken right after (Dave Silvestri) all wound up in the majors. Seale did not sign and went to the University of Texas instead. He later transferred to San Jacinto College, where Andy Pettitte was a teammate, and also played one year at the University of Miami. He was taken in the 32nd round of the 1991 amateur draft by the the Cleveland Indians and went to work for his familys software company instead. Seale passed away in 2011 at the age of 40 after being bitten 19 times by a black widow spider ...
It was suggested by Terry Pratchett, Ian Stewart, and Jack Cohen in The Science of Discworld II: The Globe that perhaps Homo sapiens as a name for our species is a bit of a misnomer considering we are not omnipotent beings. They suggest Pan narrans, the storytelling ape, because we gain understanding by fitting facts into a larger narrative rather than collecting and storing millions of pieces of disparate information. As communicators of new knowledge to the world (i.e. our scientific findings), it is important for us to keep the nature of our listeners in mind. In her keynote presentation to the retreat, Story Colliders Christine Gentry, PhD encouraged us all to think about how to frame our narratives to be more approachable and demonstrated some methods of drawing in an audience. She immediately captured our attention and sympathy by describing the challenges she faced in a wending career path that started with her geek excitement to bring a black widow spider to her Texas elementary school ...
Dr. Palumbo responded: Bee or Wasp allergy. Venom includes bees wasps hornets and fire ants. |a href=/topics/immunotherapy track_data={
Known as The Centipedes Dilemma, it is ...a concept related to cognitive behavior theory that describes a way of confusing someone who was self-taught. It involves forcing an individual to think about the steps involved in performing a task that he or she does intuitively, rendering the individual incapable of performing the task in question. The mental block that the Centipedes Dilemma creates is usually temporary. If a task or action can be taught, then it can be understood, and thus a process one has previously performed intuitively can be learned consciously, removing the mental block ...
About Us - Contact Us Google+ Advertise: 2 million page views AllergyCases.org: Case-based Curriculum of Allergy and Immunology Disclaimer: All opinions expressed here are those of their authors and not of their employer. The information provided here is for educational purposes only and is not intended to provide medical advice. By accessing the web site, the visitors acknowledge that there is no physician-patient relationship between them and the authors. Patient Information ...
Immunity join our community. We offer 88 Products in our store. Our store specialize in supplying special featured herbal medecines, developed to improve your life and makes better your health. Allergy asthma and clinical immunology huntsville alAllergy, Asthma and Clinical Immunology Specialists ....
Bettini, Sergio (1978). Bettini, Sergio (ed.). Arthropod Venoms. Berlin, Heidelberg: Springer-Verlag. p. 477. doi:10.1007/978-3 ... With a median lethal dose (LD50) of 7.3 mg/kg, the venom is relatively weak in comparison to other Myrmecia ants, whose LD50 is ... However, in a 2011 study, at least one patient had an allergic reaction to M. nigriceps venom. This study also concluded that ... Like other Myrmecia species, M. nigriceps ants possess a powerful and painful sting, and the venom is capable of inducing ...
Maretic, 1978 :Venoms of Theridiidae, Genus Steatoda. Arthropod Venoms, Springer Science & Business Media, p. 213-216. Grbic & ... 1978). "9". Arthropod Venoms. Berlin/Heidelberg: Springer-Verlag. pp. 213-214. ISBN 978-3-642-45501-8. Zamani, A. (2016). " ... S. paykulliana's venom is much less potent than the true black widows', and its effect on humans is minor, similar to a wasp ...
Schwartz, EF; Mourão, CB; Moreira, KG; Camargos, TS; Mortari, MR (2012). "Arthropod venoms: a vast arsenal of insecticidal ... These neuropeptide toxins may cooperate to make venom more effective. Another possibility is the presence of other more potent ... a potent depressant insect toxin from Buthus occitanus tunetanus venom". Toxicon. 41 (2): 163-71. doi:10.1016/S0041-0101(02) ... "Biochemical and pharmacological characterization of a depressant insect toxin from the venom of the scorpion Buthacus arenicola ...
CS1 maint: discouraged parameter (link) Gray, Michael R. (1978), "Venoms of Dipluridae", in Bettini, S. (ed.), Arthropod Venoms ... with implications for venom evolution". Scientific Reports. 8 (1636): 4. Beavis, Amber S.; et al. (2011). "Microhabitat ...
Konno, Katsuhiro; Rádis-Baptista, Gandhi (2020-03-25). Arthropod Venom Components and Their Potential Usage. MDPI. ISBN 978-3- ... and throes were observed following venom injection. S. cyanea venom also contains some antibacterial activity. Human accidents ... The venom of Conus is a conotoxin, whose action occurs by blocking muscle and neural receptors. Two cases were recorded by ... Phoneutria nigriventer venom contains two fractions PhTx-1 and PhTx-2 which are potent for primates, however, the spider has ...
"5-Hydroxytryptamine content of some arthropod venoms and venom-containing parts". Toxicon. 1 (4): 165-170. doi:10.1016/0041- ... in addition to continuing to inject venom, the sting apparatus also releases alarm pheromones and thereby marks the target as a ... slow contracting substance in wasp venom". Br. J. Pharmacol. 9 (1): 53-58. doi:10.1111/j.1476-5381.1954.tb00816.x. PMC 1509391 ...
"5-Hydroxytryptamine Content of Some Arthropod Venoms and Venom-containing Parts." Toxic on 1.4 (1963): 165-70. Web. "sting: ... Among arthropods, a sting or stinger is a sharp organ, often connected with a venom gland and adapted to inflict a wound by ... in its venoms. The 5-HT in these venoms has been found to play at least two roles: one as a pain-producing agent and the other ... Specific components of venom are believed to give rise to an allergic reaction, which in turn produces skin lesions that may ...
These arthropods can live up to 5 years and even longer depending on environmental conditions. The venom of S. heros is similar ... Baerg, W. J.; Centipedes (1924-09-01). "The Effect of the Venom of Some Supposedly Poisonous Arthropods". Annals of the ... S. heros venom also contains toxins targeted to its prey: one toxin numbs the nervous system of insects, rendering them unable ... As they grow and mature, like all arthropods they shed and molt away their exoskeleton. Each time they molt they enter a new ...
August 2015). "Neuroactive compounds obtained from arthropod venoms as new therapeutic platforms for the treatment of ... The basic structure of Delucemine was based on argiotoxin 636, a NMDA antagonist isolated from the venom of the Araneid Argiope ... Oldrati V, Bianchi E, Stöcklin R (February 2013). Spider Venom Components as Drug Candidates. Spider Ecophysiology. pp. 491-503 ...
2015). "Neuroactive compounds obtained from arthropod venoms as new therapeutic platforms for the treatment of neurological ... naturally occurring dizocilpine or related site antagonist found in Argiope venom AP5 - glutamate site antagonist AP7 - ...
Secretions of Opilionids, Whip Scorpions and Pseudoscorpions, in: Arthropod Venoms, Handbook of Experimental Pharmacology / ... Other differences include the fact that Opiliones have no venom glands in their chelicerae, so pose no danger to humans. They ... None of the known species of harvestmen has venom glands; their chelicerae are not hollowed fangs but grasping claws that are ... but this name is also used for two other distantly related groups of arthropods, the crane flies of the family Tipulidae, and ...
Large arthropods are injected with venom but are usually overpowered by brute strength before the venom has immobilized them. ... In one study, these spiders hunted and consumed individuals of sixteen species of arthropods from fourteen families and six ...
... s in this category include snake venom poisoning, botulism, arthropod poisoning, organophosphates ... Most commonly animal venom or poison, or other toxic substances are the origin of the problem. ...
relate to ectoparasites? The lethal effects of slow loris venom on arthropods". Toxicon. 95: 1-5. doi:10.1016/j.toxicon.2014.12 ... doi:10.1671/0272-4634(2007)27[541:tcmati]2.0.co;2. Shrew handbook Shrew venom Northern short-tailed shrew venom Platypus venom ... the venom apparatus, which delivers the venom by injection during a bite or sting. The venom apparatus in this definition ... The absence of venom spurs in non-Mammaliaformes cynodonts suggests that venom was an ancient mammalian synapomorphy and ...
Jones D, Wache S, Chhokar V (1996). "Toxins produced by arthropod parasites: salivary gland proteins of human body lice and ... venom proteins of chelonine wasps". Toxicon. 34 (11-12): 1421-9. doi:10.1016/s0041-0101(96)00091-8. PMID 9027999. "Parasite ...
"5-Hydroxytryptamine Content of Some Arthropod Venoms and Venom-containing Parts." Toxic on 1.4 (1963): 165-70. Web. ... Among arthropods, a sting or stinger is a sharp organ, often connected with a venom gland and adapted to inflict a wound by ... in its venoms. The 5-HT in these venoms has been found to play at least two roles: one as a pain-producing agent and the other ... A stinger (or sting) is a sharp organ found in various animals (typically insects and other arthropods) capable of injecting ...
... another use being as an antidote to snake venom and arthropod stings. Megaphrynium macrostachyum has been used in research into ...
Spiders are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest ... Although all arthropods use muscles attached to the inside of the exoskeleton to flex their limbs, spiders and a few other ... Spiders injected with venom components which cause injected humans to report pain (serotonin, histamine, phospholipase A2 and ... Under experimental conditions, when spiders were injected in the leg with bee or wasp venom, they shed this appendage. But if ...
... are often immune to the venom of their arthropod prey. Humans also consume tarantulas for food in their native ranges. They are ... The chelicerae of a tarantula completely contain the venom glands and the muscles that surround them, and can cause the venom ... Other arthropods, such as large scorpions and giant centipedes, are also known to prey on tarantulas. Tarantulas are also ... Like all arthropods, the tarantula is an invertebrate that relies on an exoskeleton for muscular support. Like other Arachnida ...
... arthropod venoms MeSH D20.888.065.055 - ant venoms MeSH D20.888.065.115 - bee venoms MeSH D20.888.065.115.060 - apamin MeSH ... wasp venoms MeSH D20.888.230 - cnidarian venoms MeSH D20.888.370 - fish venoms MeSH D20.888.590 - mollusk venoms MeSH D20.888. ... viper venoms MeSH D20.888.850.960.200 - crotalid venoms MeSH D20.888.850.960.200.050 - ancrod MeSH D20.888.850.960.200.105 - ... snake venoms MeSH D20.888.850.325 - elapid venoms MeSH D20.888.850.325.139 - bungarotoxins MeSH D20.888.850.325.220 - cobra ...
Bettini Arthropod Venoms Euw, J. von. Reichstein, T. Rothschild, M. Heart poisons (cardiac glycosides) in the lygaeid bugs ...
The young are known to eat arthropods. The common krait's venom consists mostly of powerful neurotoxins, which induce muscle ... the LD50 values of its venom are 0.325 mg/kg SC, 0.169 mg/kg IV and 0.089 mg/kg IP. and the average venom yield is 10 mg (dry ... Clinically, its venom contains presynaptic and postsynaptic neurotoxins, which generally affect the synaptic cleft (the points ... Singapore: Venom and Toxin Research Group, National University of Singapore. pp. 284-285. ISBN 9971-62-217-3. Bungarus ...
Some animal venoms, especially those produced by arthropods (such as certain spiders, scorpions, and bees) are only potentially ... "Molecular dissection of box jellyfish venom cytotoxicity highlights an effective venom antidote". Nature Communications. 10 (1 ... This results in an antivenom that can be used to counteract venom produced by certain species of snakes, spiders, and other ... In early 2019, a group of researchers in Australia published the finding of a new box jellyfish venom antidote using CRISPR. ...
This species captures prey such as arthropods with their legs and then kills them with their venom. Their predators are larger ... This species grabs prey with their legs and chelicerae, biting the prey until it is killed by the spider's venom. They ... They feed on ground-dwelling arthropods like crickets. Thesey also consume Diptera, Collembola, Homoptera, Thysanoptera, small ...
Arthropods of tropical forests: Spatio-temporal dynamics and resource use in the canopy. Cambridge: Cambridge University Press ... In the cerambycid Onychocerus albitarsis, the antennae have venom injecting structures used in defence, which is unique among ... Southwood, T. R. E. (1962). "Migration of Terrestrial Arthropods in Relation to Habitat". Biological Reviews. 37 (2): 171-211. ... Meyer-Rochow, V. B. (January 2017). "Therapeutic arthropods and other, largely terrestrial, folk-medicinally important ...
Venom". Journal of Arthropod-borne Diseases. 7 (2): 139-46. ISSN 2322-1984. PMC 3875880. PMID 24409439.. ... In general, the M. eupeus scorpion venom has a lethal dose (LD50) of 4.5 (IV), 8.75 (IP), and 11.5 mg/kg (SC). Currently, there ... The neurotoxin's name is an acronym in which the first three letters refer to the source of the venom (M. eupeus; lesser Asian ... M. eupeus stings can only be effectively treated using antibodies against venom components. C.M. Shi, Z.S. Huang, L. Wang, L.J ...
Venom is common in all the arthropod subphyla, but was believed to be completely absent from the approximately 70,000 known ... Venom-filled reservoirs have since been found attached to the needles, packed in muscles that can force out the venom. Glands ... The feeding technique of X. tulumensis is unique among crustaceans, and its venom is a useful adaptation that to some extent ... This blind remipede liquefies the body contents of other crustaceans with a venom similar to that of rattlesnakes, and which ...
Spider venoms may be a less polluting alternative to conventional pesticides, as they are deadly to insects but the great ... This article describes the roles played by arthropods in human culture. The arthropods are a phylum of animals with jointed ... Arthropods appear in folklore, in mythology, and in religion. Since Insects in mythology and in religion are covered elsewhere ... Arthropods play many roles in human culture, the social behaviour and norms in human societies transmitted through social ...
Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. ... Unlike most arthropods, spiders have no extensor muscles in their limbs and instead extend them by hydraulic pressure. As of ... There are about 2 million species of arthropods found in the world, and still it is counting. So many new species are discover ... In all except the most primitive group, the Mesothelae, spiders have the most centralized nervous systems of all arthropods, as ...
"J Venom Anim Toxins Incl Trop Dis. 20 (1): 44. doi:10.1186/1678-9199-20-44. PMC 4197285. PMID 25320574.. ... Between 1976 and 1998, in 30,000 mammals, birds, reptiles, amphibians and arthropods sampled from regions of EBOV outbreaks, no ... arthropods, rodents, and birds have also been considered possible viral reservoirs.[1][29] ...
The venom appears to be able to penetrate the skin without a puncture, given prolonged contact. It contains tetrodotoxin, which ... They feed on copepods, arthropod larvae and other zooplankton, eventually settling on the ocean floor and developing directly ... "Tentacles of venom: new study reveals all octopuses are venomous". University of Melbourne. 15 April 2009.. ... All species are venomous, but only blue-ringed octopuses have venom that is lethal to humans.[135] Bites are reported each year ...
The Arachnids are a class of eight-legged arthropods.[1] They are a highly successful group of mainly terrestrial invertebrates ... Predigestion avoids exposure to internal parasites.[5] Several groups secrete venom from specialized glands to kill prey or ... Like all arthropods, arachnids have an exoskeleton. They also have an internal structure of cartilage-like tissue, to which ...
They administer venom through forcipules. These are not part of their mandibles, so strictly speaking they sting rather than ... House centipedes feed on spiders, bed bugs, termites, cockroaches, silverfish, ants, and other household arthropods. ... For wasps, they retreat after applying the venom to give it time to take effect.[6] When the centipede is in danger of becoming ... Bites are similar to a bee's sting, with its venom causing redness and mild to severe swelling.[3][14] ...
Venom[edit]. The sting and associated venom sac of honey bees are modified so as to pull free of the body once lodged (autotomy ... "Wasp and Bee venom". Drugs.com. 2018. Retrieved 29 June 2018.. *^ Hudewenz, Anika; Klein, Alexandra-Maria (2013-12-01). " ... The honey bee's venom, known as apitoxin, carries several active components, the most abundant of which is melittin,[77] and ... Bee venom is under laboratory and clinical research for its potential properties and uses in reducing risks for adverse events ...
Habitat destruction and collection for the pet trade have led to these spiders being among the few arthropods protected under ... relying on their venom and their size and strength. Larger species of Brachypelma, such as B. smithi, have body lengths in the ...
The Solifugae apparently have neither venom glands nor any venom-delivery apparatus such as the fangs of spiders, stings of ... Holm, Erik; Dippenaar-Schoeman, Ansie (2010). Goggo Guide: The arthropods of southern Africa. Pretoria: LAPA Publishers. ISBN ... Even the authors of the original account admitted to having found no means of delivery of the putative venom by the animal, and ... M. Aruchami & G. Sundara Rajulu (1978). "An investigation on the poison glands and the nature of the venom of Rhagodes ...
However, Weismannist development is relatively rare (e.g. vertebrates, arthropods, Volvox), as great part of species have the ... Snake venom. Tempo and modes. *Gradualism/Punctuated equilibrium/Saltationism. *Micromutation/Macromutation. *Uniformitarianism ...
... because of the need to hold captured arthropods and crush their exoskeletons. ... Snake venom. Tempo and modes. *Gradualism/Punctuated equilibrium/Saltationism. *Micromutation/Macromutation. *Uniformitarianism ...
Arthropods. *Arthropod bites and stings. *bee sting / bee venom *Apamin. *Melittin. *scorpion venom *Charybdotoxin ...
The second most common oxygen-transporting protein found in nature, it is found in the blood of many arthropods and molluscs. ... many insects and other arthropods). In all these groups, heme/globin-containing molecules (even monomeric globin ones) that ...
2010). "Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature 463 (7284): 1079 ... "The First Venomous Crustacean Revealed by Transcriptomics and Functional Morphology: Remipede Venom Glands Express a Unique ...
For example, harvestmen have no venom or silk glands; spiders have these. ... but this name is also used for two other unrelated arthropods: the crane fly (Tipulidae) and the cellar spider (Pholcidae). ... they also have no venom or silk glands, unlike true spiders. In more advanced species, the first five abdominal segments are ...
In: Roques et al. (Eds). Alien terrestrial arthropods of Europe". BIORISK - Biodiversity and Ecosystem Risk Assessment. 4: 97- ... Primarily detritivores, some herbivores, few carnivores; no venom Primarily carnivores with claws modified into venomous fangs ... "Arthropod Structure & Development. 39 (2-3): 174-190. doi:10.1016/j.asd.2009.11.002. PMID 19944188.. ... Millipedes are a group of arthropods that are characterised by having two pairs of jointed legs on most body segments; they are ...
Arthropods, such as insects and crustaceans, have a nervous system made up of a series of ganglia, connected by a ventral nerve ... Many arthropods have well-developed sensory organs, including compound eyes for vision and antennae for olfaction and pheromone ... include arthropods, molluscs, and numerous types of worms. There is a basic difference between the two groups in the placement ... Snake venom. Tempo and modes. *Gradualism/Punctuated equilibrium/Saltationism. *Micromutation/Macromutation. *Uniformitarianism ...
For the reproductive appendages of arthropods, see Gonopod.. Male cartilaginous fishes (sharks and rays), as well as the males ... reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a ...
Mitchell, Jonathan S.; Heckert, Andrew B. & Sues, Hans-Dieter (2010). "Grooves to tubes: evolution of the venom delivery system ... ArthropodsEdit. Main article: 2010 in arthropod paleontology. FishesEdit. Main article: 2010 in paleoichthyology ...
Venom[edit]. The quantity of venom produced by individual specimens of D. russelii is considerable. Reported venom yields for ... and other arthropods. Juveniles are crepuscular, feeding on lizards and foraging actively. As they grow and become adults, they ... This test is often referred to as dilute Russell's viper venom time (dRVVT). The coagulant in the venom directly activates ... Dimitrov GD, Kankonkar RC (February 1968). "Fractionation of Vipera russelli venom by gel filtration. I. Venom composition and ...
Goddard, Jerome (2002). Physician's guide to arthropods of medical importance. Boca Raton: CRC Press. p. 14. ISBN 0-8493-1387-2 ... "Stinging insect allergy: current perspectives on venom immunotherapy". Journal of asthma and allergy. 8: 75-86. doi:10.2147/ ... Venomous Arthropods chapter in United States Environmental Protection Agency and University of Florida/Institute of Food and ...
Venom[edit]. Further information: Venom and Evolution of snake venom. Many smaller predators such as the box jellyfish use ... wolf spiders and all the thousands of species of solitary wasps among arthropods,[68][69] and many microorganisms and ... venom to subdue their prey,[86] and venom can also aid in digestion (as is the case for rattlesnakes and some spiders).[87][88] ... However, when the prey is capable of killing the predator (as can a coral snake with its venom), there is no opportunity for ...
... but mostly feed on other small soft-bodied arthropods.[1] Anthocorids are often predacious both as nymphs and adults.[2] They ... they do not feed on human blood or inject venom or saliva. Reactions to bites in individuals can range from no effect to minor ...
Venom[edit]. Cupiennius salei produces a neurotoxic venom which is composed of a complex mixture of compounds. The venom ... i5k Insect and other Arthropod Genome Sequencing Initiative. *Photograph. *Photograph at fineartamerica ... Venom gland[edit]. Cupiennius salei produces its venom in a pair of cylindrical pouch-like glands located at the anterior end ... Venom optimization[edit]. Main article: Venom optimization hypothesis. Cupiennius salei is a non-web producing spider and ...
"In Meier, Jürg; White, Julian (eds.). Handbook of Clinical toxicology of Animal Venoms and Poisons. 236. CRC Press. pp. 177-189 ... "Infectious Diseases and Arthropods. Springer. ISBN 978-1-60327-399-2. .. *. Guglielmone, Alberto A.; Robbing, Richard G.; ... Ticks, like mites, are arthropods that have lost the segmentation of the abdomen that their ancestors had, with a subsequent ...
With the species and size of target held constant, the duration of venom flow, maximum venom flow rate and total venom volume ... Arthropod bites and stings. *bee sting / bee venom *Apamin. *Melittin. *scorpion venom *Charybdotoxin ... "Snake Venom Detection Kit: Detection and Identification of Snake Venom" (PDF). CSL Limited. 2007. Archived from the original ( ... Russell, Findlay E. (1980). "Snake Venom Poisoning in the United States". Annual Review of Medicine. 31: 247-59. doi:10.1146/ ...
Nematocysts inject venom into prey, and usually have barbs to keep them embedded in the victims. Most species have nematocysts. ... A tough capsule, the cnida, which houses the thread, its payload and a mixture of chemicals that may include venom or adhesives ... Spirocysts do not penetrate the victim or inject venom, but entangle it by means of small sticky hairs on the thread. ...
Arthropods. *Arthropod bites and stings. *bee sting / bee venom *Apamin. *Melittin. *scorpion venom *Charybdotoxin ... by a toxic substance or venom of an animal.[1] ...
Snake venom. Tempo and modes. *Gradualism/Punctuated equilibrium/Saltationism. *Micromutation/Macromutation. *Uniformitarianism ...
"The king cobra genome reveals dynamic gene evolution and adaptation in the snake venom system". Proceedings of the National ... "The genome of Mesobuthus martensii reveals a unique adaptation model of arthropods". Nature Communications. 4: 2602. doi ... "Spider genomes provide insight into composition and evolution of venom and silk". Nature Communications. 5: 3765. doi:10.1038/ ... "The first myriapod genome sequence reveals conservative arthropod gene content and genome organisation in the centipede ...
... s are small arthropods belonging to the class Arachnida and the subclass Acari (also known as Acarina). The term "mite" ... "Spider genomes provide insight into composition and evolution of venom and silk". Nature Communications. 5: 3765. Bibcode ...
Stephen Wikel on Reactions to arthropod allergens, toxins and venoms, part of a collection of online lectures. ... Reactions to arthropod allergens, toxins and venoms. *Prof. Stephen Wikel - University of Texas Galveston Medical Branch, USA ... Reactions to arthropod allergens, toxins and venoms. Embed in course/own notes ... Overview of arthropods & their impact on the health of hu... Overview of arthropods & their impact on the health of humans & ...
Reactions to arthropod allergens, toxins and venoms The Resource Reactions to arthropod allergens, toxins and venoms Label ... Context of Reactions to arthropod allergens, toxins and venoms Items. * Reactions to arthropod allergens, toxins and venoms ... Reactions to arthropod allergens, toxins and venoms. Statement of responsibility Stephen K. Wikel. Creator * Wikel, Stephen K ... Reactions to arthropod allergens, toxins and venoms, Stephen K. Wikel, (electronic resource) ...
Arthropod Venoms. LinkOut - more resources. Full Text Sources. *Elsevier Science. Medical. *Insect Bites and Stings - ... Their venoms have not been well studied, except for toxins from some few species. The present review brings together data on ... Venomous caterpillars: From inoculation apparatus to venom composition and envenomation.. Villas-Boas IM1, Bonfá G1, Tambourgi ... Caterpillars produce venom to protect themselves from predators; contact with humans is accidental and deserves close attention ...
Bettini, Sergio (1978). Bettini, Sergio (ed.). Arthropod Venoms. Berlin, Heidelberg: Springer-Verlag. p. 477. doi:10.1007/978-3 ... With a median lethal dose (LD50) of 7.3 mg/kg, the venom is relatively weak in comparison to other Myrmecia ants, whose LD50 is ... However, in a 2011 study, at least one patient had an allergic reaction to M. nigriceps venom. This study also concluded that ... Like other Myrmecia species, M. nigriceps ants possess a powerful and painful sting, and the venom is capable of inducing ...
Maretic, 1978 :Venoms of Theridiidae, Genus Steatoda. Arthropod Venoms, Springer Science & Business Media, p. 213-216. Grbic & ... 1978). "9". Arthropod Venoms. Berlin/Heidelberg: Springer-Verlag. pp. 213-214. ISBN 978-3-642-45501-8. Zamani, A. (2016). " ... S. paykullianas venom is much less potent than the true black widows, and its effect on humans is minor, similar to a wasp ...
Venoms of Lepidoptera, Pp. 555-611. In S. Bettini (ed.), Arthropod Venoms. Springer-Verlag, Berlin. Google Scholar ... The biochemistry of the cateqrillars venom is not well understood, but the toxin is thought to be a protein (Foot 1922). Even ...
41-72, inS. Bettini (ed.). Arthropod Venoms. Handbook of Experimental Pharmacology, Vol. 48. Springer-Verlag, Berlin.CrossRef ... Defensive mechanisms of arthropods VI. Para-benzoquinones in the secretion of five species of millipedes. Ann. Entomol. Soc. Am ... The chemical ecology of defense in arthropods. Annu. Rev. Entomol. 28:263-289.CrossRefGoogle Scholar ...
Cohen E, Quistad GB . Cytotoxic effects of arthropod venoms on various cultured cells. Toxicon 1998; 36:353-8. ... Oliveira JCR, Montes de Oca H, Duarte MM, Diniz CR, Fortes-Dias CL . Toxicity of South American snake venoms measured by an in ... Zlotkin E, Miranda F, Kopeyan C, Lissitzky S . A new toxic protein in the venom of the scorpion Androctonus australis Hector. ... Zlotkin E, Rochat H, Kopeyan C, Miranda F, Lissitzky S . Purification and properties of the insect toxin from the venom of the ...
Pages 185-207 in Arthropod Venoms. Handbuch der experimentellen Pharmakologie. Volume 48 (S. Bettini, ed.) Springer Verlan, ... Black widow venom is a neurotoxin that can cause latrodectism, a mild to severe medical syndrome. The bite itself is usually ... Spider venoms and their effect. Pages 142-159 in Ecophysiology of Spiders (W. Nentwig, ed.) Springer Verlag, Berlin. ... Notes on the life habits and potency of the venom of the three Latrodectus spider species of Israel. Ecology 40:515-518. ...
Arthropod venoms and cancer. Toxicon (2011) 57:497-511. doi:10.1016/j.toxicon.2011.01.002 ... pathogens but also to kill preys like snake and arthropod venoms or against other organisms for access to resources (light, ... Jain D, Kumar S. Snake venom: a potent anticancer agent. Asian Pac J Cancer Prev (2012) 13:4855-60. doi:10.7314/APJCP.2012.13. ...
Scorpion Venom. J Arthropod Borne Dis. 9(2):238-245. ... J Venom Anim Toxins Inc Trop Dis. 11(4): 479-491. Özkan Ö, Uzun ... Venom was obtained from mature H. saulcyi scorpions by electrical stimulation of the telson. The lethality of the venom was ... Adıguzel S (2010) In vivo and in vitro effects of scorpion venoms in Turkey: a mini-review. J Venom Anim Toxins Incl Trop Dis. ... The lethal assay of the venom was 0.73 mg/kg in mice. We determined the electrophoretic protein pattern of this scorpion venom ...
Arthropod venoms and cancer. Toxicon. 2011;57(4):497-511. [ Links ] 4. Gomes A, Bhattacharjee P, Mishra R, Biswas AK, Dasgupta ... J Venom Anim Toxins incl Trop Dis. 2014;20:23. [ Links ] 8. Wang WX, Ji YH. Scorpion venom induces glioma cell apoptosis in ... J Venom Anim Toxins incl Trop Dis. 2015;21:24. [ Links ] 6. Sartim MA, Sampaio SV. Snake venom galactoside-binding lectins: a ... Scorpion venom and its toxic fractions. Aah venom was obtained from Pasteur Institute of Algeria and solubilized in sterile ...
Arthropod Venoms / adverse effects, immunology, therapeutic use*. Desensitization, Immunologic* / adverse effects, ... 0/Allergens; 0/Antibodies, Monoclonal; 0/Arthropod Venoms; 0/Insect Proteins; 0/omalizumab ... It would appear that venom immunotherapy is somewhat unique compared to inhalant allergen immunotherapy in that premedication ... Angiotensin-converting enzyme inhibitors can be stopped temporarily before venom injections to prevent reactions. The issue of ...
Bee venom acupuncture (BVA) has been used to attenuate pain, and its effect is known to be mediated by spinal noradrenergic and ... This article belongs to the Special Issue Arthropod Venoms) View Full-Text , Download PDF [1583 KB, uploaded 22 January 2016] ... Keywords: bee venom acupuncture; chemotherapy induced neuropathic pain; morphine; oxaliplatin bee venom acupuncture; ... Bee venom acupuncture (BVA) has been used to attenuate pain, and its effect is known to be mediated by spinal noradrenergic and ...
Given the presence of several medically important scorpion species, the study of their venom in the country is also important. ... A graphical representation of the different types of components found in these venoms is also revised. A map with hotspots ... Scorpions are among the oldest terrestrial arthropods, which are distributed worldwide, except for Antarctica and some Pacific ... Arthropod Syst. Phylo. 2014, 72, 257-279. [Google Scholar]. *González-Santillán, E.; Prendini, L. Phylogeny of the North ...
Toxic effect of venom of other arthropods. T75.3. Motion sickness. T78.40. Allergy, unspecified. ...
Structure and Experimental Uses of Arthropod Venom Proteins D. Jones. Pages 379-386 ... Structure and Function of Cobra Venom Factor, the Complement-Activating Protein in Cobra Venom ... Biochemical Studies On The Effect of Plotosus Lineatus Crude Venom (In Vivo) And Its Effect On Eac-Cells (In Vitro) ... Snake Venoms as Probes to Study the Kinetics of Formation and Architecture of Fibrin Network Structure ...
Venoms of Rhynchota (Hemiptera). Pp. 489-509, in: Bettini, S. (ed.), Arthropod Venoms. Handbook of Experimental Pharmacology. ... Arthropod-Plant Interactions [early online version: 16 pp.; pdf]. Zhao, Q., C. Chen, J. Liu, and J-f. Wei. 2019. ...
Funnel-web spider venom contains powerful neurotoxins that instantly paralyze prey (usually insects). Millions of years ago, ... Both arthropods also have multiple versions of the venom molecules; a sign that they have been successful enough for new ... King hypothesizes that the hormone may have been recruited into an ancient arthropods venom to cause adverse effects in prey ... Venom molecules are extremely complex (some are made up of over 3,000 peptides), so once the structure is known, researchers ...
... characterization and physiological actions of arthropod venom toxins. He has won numerous awards for his excellent work in ...
Weatherston J., Percy J.E. (1978) Venoms of Rhyncota (Hemiptera). In: Bettini S. (eds) Arthropod Venoms. Handbook of ... Schildknecht, H., Holoubek, K., Weis, K.H., Kramer, H.: Defensive substances of the arthropods, their isolation and ...
Toxic effect of venom of other arthropods. 2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code ... Toxic effect of venom of scorpion. 2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code ... Toxic effect of venom of spider. 2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code ... W57 Bitten or stung by nonvenomous insect and other nonvenomous arthropods* W57.XXXA Bitten or stung by nonvenomous insect and ...
Categories: Arthropod Venoms Image Types: Photo, Illustrations, Video, Color, Black&White, PublicDomain, CopyrightRestricted ...
"Neuroactive compounds obtained from arthropod venoms as new therapeutic platforms for the treatment of neurological disorders" ... Argiotoxin-636 - naturally occurring dizocilpine or related site antagonist found in Argiope venom ...
32 ZLOTKIN E. Toxins derived from arthropod venoms specifically affecting insects. In: KERKUT GA., GILBERT LT. Eds. ... Venom collection. Venom was milked using a capillary tube by simply pressing the insects abdomen with the hands. The venom ... Reduviid venom generally inhibits the growth of Gram-negative as well as Gram-positive bacteria. Catamirus brevipennis venom ... Total protein content of the tested reduviid venoms was analyzed using the Lowery method, being higher in the venoms from ...
8, 1 Beard, R.L. (1978) Venoms of Braconidae. In: Bettini, S. (ed.) Arthropod venoms,pp. 773-800. Springer, Berlin and New York ... Rathmayer, W. (1978) Venoms of Sphecidae, Pompilidae, Multilidae and Bethylidae. In: Bettini, S. (ed.) Arthropod venoms, pp. ... Goyffon, M. and Kovoor, J. (1978) Chactoid venoms. In: Bettini, S. (ed.) Arthropod venoms, pp. 395-418. Springer, Berlin and ... Zlotkin, E. (1973) Chemistry of animal venoms. Experientia 29, 1453 Zlotkin, E. (1985) Toxins derived from arthropod venoms ...
Neuromuscular junction diseases in this category include snake venom poisoning, botulism, arthropod poisoning, organophosphates ... Most commonly animal venom or poison, or other toxic substances are the origin of the problem. ...
Toxins and venoms of snakes and arthropods including biochemistry and physiology. Biology and metabolism of toxins in food. ... All aspects of medically important insect and arthropod vectors and arthropod parasites and diseases transmitted by them. From ... disease vectors and arthropod parasites. Epidemiology and prevention of chronic diseases in developing countries. Treating ...
"5-Hydroxytryptamine Content of Some Arthropod Venoms and Venom-containing Parts." Toxic on 1.4 (1963): 165-70. Web. ... Among arthropods, a sting or stinger is a sharp organ, often connected with a venom gland and adapted to inflict a wound by ... in its venoms. The 5-HT in these venoms has been found to play at least two roles: one as a pain-producing agent and the other ... A stinger (or sting) is a sharp organ found in various animals (typically insects and other arthropods) capable of injecting ...
Their venom is mostly arthropod specific. Also, despite its appearance, the scorpion is NOT a crustacean. It is of the phyla: ...
  • Venoms of animal species such as snakes, scorpions, bees, spiders, jellyfish and sea anemones are a complex of bioactive molecules that display a plethora of molecular targets and functions [ 3 - 7 ]. (scielo.br)
  • Thousands of arthropod species, ranging from arachnids (spiders and scorpions) to hymenopterans (ants, bees, and wasps) and myriapods (centipedes), are venomous and use their venoms for both defense and predation. (doabooks.org)
  • Spiders are arachnids (a group of arthropods), which have four pairs of legs, similar to scorpions, mites, and ticks ( figure 1 ). (uptodate.com)
  • The venom of most spiders has little or no effect on mammalian tissues [ 2,3 ]. (uptodate.com)
  • Spiders produce peptide ω-Hexatoxin-Hv1a (Hvt), a venom toxin with proven insecticidal properties against arthropods belonging to orders Lepidoptera, Diptera, and Orthroptera. (isaaa.org)
  • Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. (appbrain.com)
  • Anatomically, spiders differ from other arthropods in that the usual body segments are fused into two tagmata, the cephalothorax and abdomen, and joined by a small, cylindrical pedicel. (appbrain.com)
  • In all except the most primitive group, the Mesothelae, spiders have the most centralized nervous systems of all arthropods, as all their ganglia are fused into one mass in the cephalothorax. (appbrain.com)
  • Unlike most arthropods, spiders have no extensor muscles in their limbs and instead extend them by hydraulic pressure. (appbrain.com)
  • According to a study published last week, your house could be home to more than 500 different kinds of insects, spiders, and other arthropods. (slate.com)
  • Arthropods include insects, spiders (arachnids), mites and ticks. (dermnetnz.org)
  • Spiders and other arthropods have modified their cuticles into elaborate arrays of sensors . (wikipedia.org)
  • Like most arthropods, spiders lack balance sensors, and rely on their eyes to tell them which way is up. (wikipedia.org)
  • Almost all spiders are predators , and eat insects and other arthropods (including other spiders). (wikipedia.org)
  • examples include the poison in the rounded warts of the skin of toads, the venoms of spiders, scorpions, bees, and other arthropods, and the poison of jellyfish and other coelenterates. (infoplease.com)
  • This chapter deals with the major groups of venomous arthropods: the hymenopterans , spiders, centipedes and scorpions, and urticating caterpillars. (ufl.edu)
  • Although spiders are often unpopular, the venom of most species is not very toxic to humans, usually resulting in no more than a slight swelling, inflammation, or itching sensation. (pestcontrolcanada.com)
  • The majority of those spiders that can bite people have venom that is harmless to people. (pestcontrolcanada.com)
  • However, many arthropods other than insects - such as spiders, scorpions, horseshoe crabs, sea spiders, centipedes, and millipedes - also produce hundreds of bioactive substances in their venom that may become useful in the clinic. (oatext.com)
  • Venoms from marine and terrestrial animals (cone snails, scorpions, spiders, snakes, centipedes, cnidarian, etc.) can be seen as an untapped cocktail of biologically active compounds, being increasingly recognized as a new emerging source of peptide-based therapeutics. (readbyqxmd.com)
  • Background: In this study, we investigated the lethal potency, electrophoretic protein pattern and in vivo effects of Hottentotta saulcyi scorpion venom in mice.Methods: Scorpions were collected at night, by using a UV lamp from Mardin Province, Turkey. (ac.ir)
  • Venom was obtained from mature H. saulcyi scorpions by electrical stimulation of the telson. (ac.ir)
  • Özkan Ö, Filazi A (2004) The determination of acute lethal dose-50 (LD50) levels of venom in mice, obtained by dif-ferent methods from scorpions, Androctonus crassicauda (Oliver 1807). (ac.ir)
  • Recently, it was established that venom toxins from scorpions induced cytotoxic, antiproliferative and apoptogenic effects on cancer cells. (scielo.br)
  • Scorpions venoms have been used as traditional therapies in various pathophysiological conditions in Asia and Africa [ 2 ]. (scielo.br)
  • Recently, several investigations demonstrated that venoms and toxins of some species of scorpions, especially those of the Buthidae family, induce cytotoxic antiproliferative effects and apoptosis on cancer cells in vitro and in vivo [ 8 - 12 ]. (scielo.br)
  • Scorpions are among the oldest terrestrial arthropods, which are distributed worldwide, except for Antarctica and some Pacific islands. (mdpi.com)
  • Bearg, W.J. (1961) Scorpions biology and effect of the venom. (springer.com)
  • Scorpions are predatory arthropod animals of the order Scorpiones within the class Arachnida . (thefullwiki.org)
  • Major arthropods (scorpions, bees, and wasps) have multicellular glands attached to the stinging apparatus. (emaxhealth.com)
  • These venoms also contain several pharmacologically active components that could elicit great interest as a source of proteins and peptides for the design and the development of new drugs with antimicrobial, anti-parasitic, analgesic, immunosuppressing and anticancer activities [ 1 , 3 , 5 ]. (scielo.br)
  • Cell growth inhibition is essentially due to proteins and peptides isolated from these venoms, some of them are explored in phase I and phase II clinical trials [ 3 ]. (scielo.br)
  • Researchers at the University of Queensland in Australia and Lewis & Clark College in Portland, Oregon, made the connection while screening for similarities between the venom proteins and other molecules. (eurekalert.org)
  • The venoms of both reduviid predators are composed of low molecular weight proteins (7-33 kD). (scielo.br)
  • Most research on venoms has focused on the identification, isolation and purification of proteins and peptides with pharmacological activity like neurotoxins (8, 20, 22) and antimicrobial peptides, whose presence in the venom has been suggested to be a defense mechanism against infections arisen during ingestion of the prey (29, 30). (scielo.br)
  • This Special Issue collects information on such progress, encouraging contributions on the chemical and biological characterization of venom components, not only peptides and proteins, but also small molecules, their mechanisms of action, and the development of venom-derived peptide leads. (doabooks.org)
  • While the presence of serine proteases in bee venom has been demonstrated, the role of these proteins in bee venom has not been elucidated. (coturnix.org)
  • The histochemical results indicate that the venom -producing cells of both glands elaborate glycosaminoglycan , acid mucosubstances, certain amino acids and proteins , but are devoid of glycogen . (bvsalud.org)
  • Snake venoms are complex mixtures of inorganic and organic components, mainly proteins and peptides. (biomedcentral.com)
  • Venom was broken down for the first time in 1950's and is mainly made of serotonin, histamine, bradykinin hyaluronidase and a large number of peptides and proteins. (emaxhealth.com)
  • These genes encode a protein domain that is also found in serine protease inhibitors, venom and anticoagulant proteins of (blood-feeding) arthropods and nematodes. (vub.be)
  • In, Meier J, White J (Eds): Clinical Toxicology of Animal Venoms and Poisons, 1. (ac.ir)
  • Several studies have showed that animal venoms are a source of bioactive compounds that may inhibit the growth of cancer cells, which makes them useful agents for therapeutic applications. (scielo.br)
  • Biomedical research using natural resources has established that animal venoms and toxins present a great potential against various pathophysiological conditions. (scielo.br)
  • Their venoms have not been well studied, except for toxins from some few species. (nih.gov)
  • Purification, structure and activity of three insect toxins from Buthus occitanus tunetanus venom. (nature.com)
  • Lester D, Lazarovici P, Pelhate M, Zlotkin E . Purification, characterization and action of two insect toxins from the venom of the scorpion Buthotus judaicus. (nature.com)
  • Primary structure of scorpion anti-insect toxins isolated from the venom of Leiurus quinquestriatus quinquestriatus. (nature.com)
  • J Venom Anim Toxins Incl Trop Dis. (ac.ir)
  • Abe, T., Alema, S. and Miledi, R. (1977) Isolation and characterization of presynaptically acting neuro Toxins from the venom of Bungarus snakes. (springer.com)
  • Beard, R.L. (1963) Insect Toxins and venoms. (springer.com)
  • As such, proteomic and peptidomic analyses using LC-MS have enabled the full analysis of venom components, revealing a variety of novel peptide and protein toxins sequences and scaffolds, potentially useful as pharmacological research tools and for the development of highly selective peptide ligands and therapeutic leads, like chlorotoxin. (doabooks.org)
  • Transcriptomic and Proteomic Analyses Reveal the Diversity of Venom Components from the Vaejovid Scorpion Serradigitus gertschi Toxins (Basel), 10, 359. (unam.mx)
  • A Deeper Examination of Thorellius atrox Scorpion Venom Components with Omic Techonologies Toxins (Basel), 9, 399. (unam.mx)
  • The Cuban scorpion Rhopalurus junceus (Scorpiones, Buthidae): component variations in venom samples collected in different geographical areas Journal of Venomous Animals and Toxins Including Tropical Diseases, 19, 13. (unam.mx)
  • Snake venom is a complex substance, containing various enzymes and toxins . (infoplease.com)
  • Like other Myrmecia species, M. nigriceps ants possess a powerful and painful sting, and the venom is capable of inducing allergic reactions in sensitive people. (wikipedia.org)
  • Given the presence of several medically important scorpion species, the study of their venom in the country is also important. (mdpi.com)
  • The diversity of venom components of the scorpion species Paravaejovis schwenkmeyeri (Scorpiones: Vaejovidae) revealed by transcriptome and proteome analyses Toxicon, 151, 47-62. (unam.mx)
  • Antisera were produced against Micrurus species M. fulvius, M. frontalis, M. spixii, M. carinicauda , and M. nigrocinctus venom but not against M. mipartitus venom. (ajtmh.org)
  • Topics of my work have included: evolution of venom in mammals, thermoregulation in slow lorises, evolution of exudativory in primates, and using morphology to distinguish species. (brookes.ac.uk)
  • While the venom of a few species is dangerous to humans, scientists are now researching the use of spider venom in medicine and as non-polluting pesticides. (appbrain.com)
  • The venom of Loxosceles species contains sphingomyelinase D, a wholly unique venom component in the animal kingdom, says Hernan F. Gomez, MD, a University of Michigan researcher in spider bite toxinology. (amednews.com)
  • Gene order varies considerably within Arachnida - only eight out of 23 species have retained the putative arthropod ground pattern. (worldwidescience.org)
  • Millipedes are arthropods in the class Diplopoda, which contains approximately 10,000 species in 13 orders and 115 families. (cirrusimage.com)
  • The bad news is some species have venom glands in their claws. (slate.com)
  • The reaction to encounter with an arthropod depends on the species involved, whether it carries disease, and individual factors such as host immunity. (dermnetnz.org)
  • The specific venom used by these animals varies not only with its type (spider venom is different from bee venom, for example), but also within a species. (encyclopedia.com)
  • Bucherl (1946, 1971), experimenting with five of the largest and most common Brazilian species on laboratory animals, concluded that the venom from actual bites, while capable of giving intense pain, was too weak to seriously harm humans. (phrygane.tk)
  • Recently, scorpion venoms obtained from various scorpion species ( L. quinquestriatus , A. crassicauda, and A. amouroxi ) revealed potential anticancer effects using in vitro (MDA-MB-231, HCT-8, and MCF-7) and in vivo approaches. (springeropen.com)
  • The venoms induced cytotoxicity, elevated the reactive oxygen species, and also enhanced apoptotic pathways in these cancer cell lines (Salem et al. (springeropen.com)
  • 2018 ). Also, from the scorpion of A. australis (one of the most common species in North Africa), the venom fraction F3 induced apoptosis in human lung cancer cell line (NCI-H358) via generation of reactive oxygen and nitrogen species resulted in mitochondrial malfunction (Béchohra et al. (springeropen.com)
  • Despite over 800 species of cone snails being known, each producing over 1000 venom peptides, only about 150 unique venom peptides are structurally and functionally characterized. (readbyqxmd.com)
  • To expand our capacity to discover venom sequences from the genomes of venomous organisms, we applied targeted sequencing techniques to selectively recover venom gene superfamilies and non-toxin loci from the genomes of 32 cone snail species (family, Conidae), a diverse group of marine gastropods that capture their prey using a cocktail of neurotoxic peptides (conotoxins). (readbyqxmd.com)
  • Despite remarkable inter- and intra-species variability, defined sets of synergistic venom peptides (cabals) are considered essential for prey capture by cone snails. (readbyqxmd.com)
  • They use sharp fangs at the end of their chelicerae to bite prey (typically insects, other arthropods, or small vertebrates) and inject venom. (uptodate.com)
  • They have eight legs and chelicerae with fangs that inject venom . (wikipedia.org)
  • Certain animals, insects, and arthropods can inject venom (poison) through mouthparts or a stinger. (msdmanuals.com)
  • They generally bite and inject venom into their prey. (pestcontrolcanada.com)
  • Catching their prey, they inject the victim with venom and suck the liquids from the body. (icr.org)
  • The present study was carried out to assess the antitumor efficacy of Androctonus australis crude venom using both in vitro and in vivo approaches. (springeropen.com)
  • The crude venom of the centipede Scolopendra subspinipes mutilans, injected with Escherichia coli K12D31 for 3-4 days showed broad-spectrum antimicrobial activity against Gram-positive. (bvsalud.org)
  • The crude venom was heated at 100 degrees C for 30 min, centrifuged at 10,000 rpm for 30 min at 4 degrees C and the supernatants were obtained, from which an antibacterial fraction having a molecular mass of 3000-5000 Da, was further separated by ultrafiltration. (bvsalud.org)
  • Funnel-web spider venom contains powerful neurotoxins that instantly paralyze prey (usually insects). (eurekalert.org)
  • King hypothesizes that the hormone may have been recruited into an ancient arthropod's venom to cause adverse effects in prey. (eurekalert.org)
  • If a hormone does something bad to prey, you might recruit it into the venom and make lots of it," he says. (eurekalert.org)
  • The vast majority of venomous arthropods are predators and feed exclusively on living prey which can be other arthropods, mainly insects (32). (scielo.br)
  • The salivary venom of reduviids consists of digestive enzymes, which immobilize the prey and help in its external digestion (3, 5). (scielo.br)
  • For the predator, it may be advantageous to prey using venom with antimicrobial factors, which could help to protect immunocompromised preys from opportunistic pathogens. (scielo.br)
  • The presence of these antimicrobial peptides in venom has been suggested to be a defense mechanism against infections that may arise with the ingestion of prey (30). (scielo.br)
  • A newly identified toxin in the venom of a tropical centipede helps the arthropod to overpower giant prey in about 30 seconds. (sciencenews.org)
  • But spider venom is used to immobilize prey. (amednews.com)
  • Some kinds of spider venom attack the nervous systems of their prey, and other kinds of venom attack body tissues . (wikipedia.org)
  • Most use venom from their fangs to kill their prey. (wikipedia.org)
  • It is clear venom produced by venomous creatures have evolved because of their direct benefits to these organisms in terms of self-defense and/or prey acquisition. (emaxhealth.com)
  • They produce venom that is poisonous to their normal prey of insects, mites, and other small arthropods. (pestcontrolcanada.com)
  • Venom is injected through the hollow fangs to immobilize the prey and begin the digestion process. (pestcontrolcanada.com)
  • Venom (poison) is produced in glands behind the jaws and empties along ducts in the fangs to paralyze or kill prey. (pestcontrolcanada.com)
  • Eitan M, Fowler E, Herrmann R, Duval A, Pelhate M, Zlotkin E . A scorpion venom neurotoxin paralytic to insects that affects sodium current inactivation: purification, primary structure, and mode of action. (nature.com)
  • Black widow venom is a neurotoxin that can cause latrodectism, a mild to severe medical syndrome. (tolweb.org)
  • Babin, D.R., Watt, D.D., Goos, S.M. and Mlejnek, R.V. (1974) Amino acid sequences of neurotoxin protein variants from the venom of Centruroides sculpturatus Ewing. (springer.com)
  • For starters, says Matt Bertone , an entomologist at North Carolina State University and lead author of the new study, pseudoscorpions, venom glands and all, are completely harmless to humans. (slate.com)
  • In poisonous snakes, venom is secreted in two poison glands, one on each side of the upper jaw, and enters the fang by a duct. (infoplease.com)
  • The ante-riormost legs are modified into four-jointed, sharply pointed fangs (forcipules) connected to internal venom glands. (phrygane.tk)
  • There is no evidence that the legs contain venom glands, although some centipedes produce noxious chemicals from other parts of the body. (phrygane.tk)
  • The venom apparatus of Scolopendra valida consists of a pair of maxillipedes and venom glands situated anteriorly in the prosoma on either side of the first segment of the body. (bvsalud.org)
  • The structure and secretions of centipede venom glands are discussed within the context of the present results. (bvsalud.org)
  • A depressant insect-selective toxin analog from the venom of the scorpion Leiurus quinquestriatus hebraeus purification and structure/function characterization. (nature.com)
  • Zlotkin E, Kadouri D, Gordon D, Pelhate M, Martin MF, Rochat H . An excitatory and a depressant insect toxin from scorpion venom both affect sodium conductance and possess a common binding site. (nature.com)
  • An insect sting is complicated by its introduction of venom , although not all stings are venomous. (wikipedia.org)
  • A sting is usually an attack by a venomous insect that injects toxic and painful venom through its stinger as a defence mechanism. (dermnetnz.org)
  • Along with that, however, for many humans, these same insect venoms cause toxic reactions so without some kind of refinement was needed. (emaxhealth.com)
  • Wasp venom contains numerous bioactive substances that the insect uses to both hunts for food and protect against intruders. (emaxhealth.com)
  • Most are rather complicated mixtures of chemicals, each of which plays some role in the action that the venom takes. (encyclopedia.com)
  • Antibacterial activity has been widely reported in venoms from different snakes including Pseudechis australis (28). (scielo.br)
  • Cross neutralization and precipitin tests were performed with coral snake venoms and rabbit antisera against five venoms to determine the most suitable venoms for producing a polyvalent antivenin useful in treating persons bitten by coral snakes. (ajtmh.org)
  • Venom yields and toxicity levels for Costa Rican snakes are reported. (ajtmh.org)
  • The venoms of various snakes have been used medicinally, according to their specific properties, as painkillers (in arthritis, cancer, and leprosy), antispasmodics (in epilepsy and asthma), and blood coagulants (in hemophilia). (infoplease.com)
  • Snakes are not the only animals that use venom. (encyclopedia.com)
  • Maretic, 1978 :Venoms of Theridiidae, Genus Steatoda. (wikipedia.org)
  • 8, 1 Beard, R.L. (1978) Venoms of Braconidae. (springer.com)
  • Many are associates of other arthropods (Bischoff de Alzuet 1978, Mauri and Bischoff de Alzuet 1972) in various ways, as parasites, predators, and consumers of exudates from the host. (phrygane.tk)
  • Arachnids are a class ( Arachnida ) of joint-legged invertebrate animals ( arthropods ), in the subphylum Chelicerata . (wikipedia.org)
  • Like all arthropods, arachnids have an exoskeleton , and they also have an internal structure of cartilage -like tissue, called the endosternite , to which certain muscle groups are attached. (wikipedia.org)
  • Analysis of electrophoresis indicated that H. saulcyi scorpion intoxicated mice exhibited autonomic nervous system symptoms (tachypnea, restlessness, hyperexcitability, convulsions, salivation, lacrimation, weakness).Conclusions: Hottentotta saulcyi scorpion venom includes short-chain neurotoxins and long-chain neurotoxins according to the electrophoretic protein patterns. (ac.ir)
  • Due to their specificity for numerous ion-channel subtypes, including voltage- and ligand-gated ion channels, arthropod neurotoxins have been investigated to dissect and treat neurodegenerative diseases and control epileptic syndromes. (doabooks.org)
  • Thus, snake venoms typically contain neurotoxins, but they also often include enzymes that promote various hydrolysis reactions. (encyclopedia.com)
  • For many who study the chemistry of venoms, the neurotoxins hold particular interest. (encyclopedia.com)
  • The stings of some wasps, such as those of the Polistes versicolor , contain relatively large amounts of 5-hydroxytryptamine (5-HT) in its venoms. (wikipedia.org)
  • It has been known for many years that venom of insects like wasps and bees have compounds that can fight bacteria. (emaxhealth.com)
  • One of these agents is the venom of wasps. (emaxhealth.com)
  • Therefore, the present study aims to investigate the cytotoxic activity of Androctonus australis hector (Aah) scorpion venom and its toxic fractions (FtoxG-50 and F3) on NCI-H358 human lung cancer cells. (scielo.br)
  • The present findings showed that F3 fraction was more cytotoxic towards NCI-H358 lung cancer cells with an IC 50 of 27.05 ± 0.70 μg/mL than venom alone (396.60 ± 1.33 μg/mL) and its toxic fraction FtoxG-50 (45.86 ± 0.91 μg/mL). (scielo.br)
  • Even mildly toxic venoms may cause serious allergic reactions. (msdmanuals.com)
  • King's group found that centipede venom has more subtle alterations of the hormone that make it more stable and therefore a better engineering template. (eurekalert.org)
  • The chemical composition of centipede venom is still virtually unknown. (phrygane.tk)
  • Arthropods such as bees use their venom defensively, and it has evolved to induce pain. (amednews.com)
  • abstract = "Oxytoxins (OxyTx1 and OxyTx2) are disulfide-rich peptides isolated from the venom of the spider Oxyopes lineatus that block voltage-sensitive calcium ion channels (VSCCs). (elsevier.com)
  • There are highly variable global distributions of insects and arthropods. (visualdx.com)
  • 2016 ). Hence, the current study was conducted to evaluate the anticancer efficacy of A. australis venom against various cancer cell lines (in vitro study) and against Ehrlich ascites carcinoma bearing mice (in vivo study). (springeropen.com)
  • Some allow organisms to protect themselves against predators or herbivores, insects, pathogens but also to kill preys like snake and arthropod venoms or against other organisms for access to resources (light, water, and nutrients). (frontiersin.org)
  • New insights into the proteomic characterization of the coral snake Micrurus pyrrhocryptus venom Toxicon, 153, 23-31. (unam.mx)
  • Eastern coral snake Micrurus fulvius venom toxicity in mice is mainly determined by neurotoxic phospholipases A Journal of Proteomics, 105, 295-306. (unam.mx)
  • Of the venoms tested, M. frontalis venom would be most suitable for use in the production of a polyvalent coral snake antivenin. (ajtmh.org)
  • It was found that the sea snake, Pelamis platurus , possesses the most potent venom. (ajtmh.org)
  • Taking into consideration toxicity and venom yields, the fer-de-lance, Bothrops asper (formerly included in B. atrox ), appears to be the most dangerous snake in Costa Rica and Lachesis muta , despite its impressive size, occupies a relatively unimportant position. (ajtmh.org)
  • In mammals, Bi-VSP acts similarly to snake venom serine protease, which exhibits fibrin(ogen)olytic activity. (coturnix.org)
  • Immune serum against snake venom, or antivenin, can be prepared by repeatedly injecting sublethal doses of venom into an animal such as the horse. (infoplease.com)
  • By contrast, one can be quite careful on a walk through the southwestern United States or Australian outback and still have an unfortunate accident involving the venom of a snake. (encyclopedia.com)
  • Enzymes from Snake Venom. (encyclopedia.com)
  • SNAKE VENOMS & its indentions, etc. (bvsalud.org)
  • Standardization of methods for isolating bioactive molecules from snake venoms is extremely difficult due to. (biomedcentral.com)
  • Crotalus durissus terrificus venom (CdtV) is one of the most studied snake venoms in Brazil. (biomedcentral.com)
  • The data show that in toxicity or neutralization experiments in which mice are used it is desirable to prolong the observation period up to 48 hours when employing crotalid venoms and up to 72 hours when using elapide venoms. (ajtmh.org)
  • These venoms range in toxicity from mild to life threatening. (msdmanuals.com)
  • Scorpion venom contains various biomolecules with potential therapeutic values against different diseases, including cancer. (springeropen.com)
  • The present study was designed to investigate the therapeutic effects of bee venom (BV) on high‑fat diet (HFD)‑induced non‑alcoholic fatty liver (NAFL) in rats at different levels. (spandidos-publications.com)
  • S. paykulliana's venom is much less potent than the true black widows', and its effect on humans is minor, similar to a wasp sting. (wikipedia.org)
  • Turkish scorpion Buthacus macrocentrus: General characterization of the venom and description of Bu1, a potent mammalian Na+-channel a-toxin Toxicon, 59, 408-415. (unam.mx)
  • The bioactive peptides from wasp venom should represent a promising source for new drug leads discovery and development, having been shown to be potent substances. (emaxhealth.com)
  • Venom gland transcriptomic and venom proteomic analyses of the scorpion Megacormus gertschi Diaz-Najera, 1966 (Scorpiones: Euscorpiidae: Megacorminae) Toxicon, 133, 95-109. (unam.mx)
  • Madio, Bruno, Undheim, Eivind A. B. and King, Glenn F. (2017) Revisiting venom of the sea anemone Stichodactyla haddoni: omics techniques reveal the complete toxin arsenal of a well-studied sea anemone genus. (edu.au)
  • The present review brings together data on venomous caterpillars of moths, primarily addressing the available literature on diversity among the different families that cause accident in humans, the structures used in their defense, venom composition and clinical aspects of the envenomations. (nih.gov)
  • Calderwood says even poisonous arthropods can be eaten, because their venom is a protein that is safely digested by humans. (emagazine.com)
  • No. When dealing with the effect of spider venom on humans there are two types. (pestcontrolcanada.com)
  • Biochemical and physiological characterization of a new Na-channel specific peptide from the venom of the Argentinean scorpion Tityus trivittatus Peptides, 68, 11-16. (unam.mx)
  • Proteomic characterization of the venom and transcriptomic analysis of the venomous gland from the Mexican centipede Scolopendra viridis Journal of Proteomics, 111, 224-237. (unam.mx)
  • Biochemical and molecular characterization of the venom from the Cuban scorpion Rhopalurus junceus Toxicon, 58, 18-27. (unam.mx)
  • General biochemical and immunological characterization of the venom from the scorpion Tityus trivittatus of Argentina Toxicon, 55, 307-319. (unam.mx)
  • Among arthropods, a sting or stinger is a sharp organ, often connected with a venom gland and adapted to inflict a wound by piercing, as with the caudal sting of a scorpion . (wikipedia.org)
  • Each venom gland is continuous with a hollow tubular claw possessing a sharp tip and subterminal pore located on the outer curvature. (bvsalud.org)
  • Specific components of venom are believed to give rise to an allergic reaction , which in turn produces skin lesions that may vary from a small itching wheal, or slightly elevated area of the skin, to large areas of inflamed skin covered by vesicles and crusted lesions . (wikipedia.org)
  • They also found all pathogens the researchers tested against the wasp venom were sensitive against. (emaxhealth.com)
  • Se realizó un estudio entomológico y clínico-epidemiológico descriptivo de la serie de casos de erucismo ocurridos entre 2015 y 2018 en el Municipio de San Ignacio, Misiones, Argentina, debido al aumento extraordinario de accidentes informados por fuentes no sistemáticas. (sfu.ca)
  • Bee venom obtained from stepwise fractionation has been reported to contain peptides (Prasasty et al, 2018) . (emaxhealth.com)
  • Anna's research on lorises ranges from behavioural ecology in zoos, rescue centres and in the wild, museum studies, genetics, acoustics, taxonomy, conservation education and now a novel study of chemical ecology and how this bizarre primate is one of the only mammals that produces venom. (brookes.ac.uk)
  • Venom characterization of the Amazonian scorpion Tityus metuendus Toxicon, 143, 51-58. (unam.mx)
  • Comparative proteomic analysis of female and male venoms from the Mexican scorpion Centruroides limpidus: Novel components found Toxicon, 125, 91-98. (unam.mx)
  • Comparative proteomic analysis of male and female venoms from the Cuban scorpion Rhopalurus junceus Toxicon, 107, 327-334. (unam.mx)
  • Comprehensive analysis of venom from the scorpion Centruroides tecomanus reveals compounds with antimicrobial, cytotoxic, and insecticidal activities Toxicon, 118, 95-103. (unam.mx)
  • Venoms differ in their effect according to the preponderance in them of hemotoxic, hemolytic, or neurotoxic agents. (infoplease.com)
  • The venom of the gaboon viper is both hemotoxic and neurotoxic. (infoplease.com)
  • Venom from predators including reduviids has been a great source of novel peptides with a notable potential for agricultural and medicinal use. (scielo.br)
  • Venomous animals and their venoms. (phrygane.tk)
  • The Center for the Study of Venoms and Venomous Animals (Cevap) was established in 1989 and became an official São Paulo State University (Unesp) research unit in 1993. (biomedcentral.com)
  • venom or zootoxin, any of a variety of poisonous substances produced by animals. (infoplease.com)
  • A stinger (or sting ) is a sharp organ found in various animals (typically insects and other arthropods ) capable of injecting venom , usually by piercing the epidermis of another animal. (wikipedia.org)
  • This is necessary as the stinger continues to pump venom from its sack until it is empty or removed. (dermnetnz.org)
  • Structure, Molecular Modeling and Function of the First Potassium Channel Blocker, Urotoxin, Isolated from the Venom of the Australian Scorpion Urodacus Yaschenkoi Molecular Pharmacology, 86, 28-41. (unam.mx)
  • Arthropod Venoms, Springer Science & Business Media, p. 213-216. (wikipedia.org)
  • Venom molecules are extremely complex (some are made up of over 3,000 peptides), so once the structure is known, researchers such as King can more easily "evolve" a toxin by making changes to its sequence to add or remove functions. (eurekalert.org)
  • Further venomics studies are needed to functionally characterize the active molecules from this scorpion venom and study their mode of action on cancer cells to develop them into potential anticancer agents. (springeropen.com)
  • Venoms are a rich source of various pharmacologically active molecules (Abdel-Rahman et al. (springeropen.com)
  • It has been suggested that these infections may result from the spider's propensity for feeding on dead and decaying arthropods. (psu.edu)
  • Because no laboratory test is available to identify the spider's venom, the diagnosis is made clinically, based on a combination of signs, symptoms, and history. (thefreelibrary.com)
  • Yet even more bizarre are the details of how the venom-stung spider's flesh is consumed. (icr.org)
  • Extensive research has been carried out to evaluate the effects of bee venom as well as the components of it. (emaxhealth.com)
  • Furthermore, there is currently no information available regarding the melanization response or the fibrin(ogen)olytic activity of bee venom serine protease, and the molecular mechanism of its action remains unknown. (coturnix.org)
  • Recently, robust studies have shown antibacterial activity of bee venom. (emaxhealth.com)
  • At a time when vector-borne diseases have increased their spread, Infectious Diseases and Arthropods provides physicians, infectious disease specialists, medical entomologists, and public health officials with an up-to-date, readily accessible, gold-standard reference source. (indigo.ca)
  • II Major Arthropod-Borne Diseases. (indigo.ca)
  • Diseases in which specific arthropods are the vector occur worldwide but are particularly prevalent in tropical and developing regions. (dermnetnz.org)
  • Bee venom taken from Apis mellifera L. has been utilized for centuries as a suitable pain killer and anti-inflammatory agent for various chronic diseases. (emaxhealth.com)
  • Molecular cloning and biochemical characterization of the first Na+-channel alpha-type toxin peptide (Acra4) from Androctonus crassicauda scorpion venom Biochimie, 95, 1216-1222. (unam.mx)
  • Cone snail venoms have separately evolved for predation and defense. (readbyqxmd.com)
  • Centipedes are long-lived as arthropods go. (cirrusimage.com)
  • Centipedes (Kaestner 1968: 356-388, Lewis 1981) are slender, very elongate, and many segmented arthropods, resembling millipedes only in a very general way. (phrygane.tk)
  • It may be tempting to equate the concept of venom with poison, but to do so would be inaccurate. (encyclopedia.com)
  • To be more accurate with the definition of venom, therefore, it must be noted that venom is not just a poison, but one that is injected under the skin of the victim. (encyclopedia.com)