A genus of the subfamily TRIATOMINAE. Rhodnius prolixus is a vector for TRYPANOSOMA CRUZI.
A subfamily of assassin bugs (REDUVIIDAE) that are obligate blood-suckers of vertebrates. Included are the genera TRIATOMA; RHODNIUS; and PANSTRONGYLUS, which are vectors of TRYPANOSOMA CRUZI, the agent of CHAGAS DISEASE in humans.
Slender tubular or hairlike excretory structures found in insects. They emerge from the alimentary canal between the mesenteron (midgut) and the proctodeum (hindgut).
Insects that transmit infective organisms from one host to another or from an inanimate reservoir to an animate host.
A dilated cavity extended caudally from the hindgut. In adult birds, reptiles, amphibians, and many fishes but few mammals, cloaca is a common chamber into which the digestive, urinary and reproductive tracts discharge their contents. In most mammals, cloaca gives rise to LARGE INTESTINE; URINARY BLADDER; and GENITALIA.
Infection with the protozoan parasite TRYPANOSOMA CRUZI, a form of TRYPANOSOMIASIS endemic in Central and South America. It is named after the Brazilian physician Carlos Chagas, who discovered the parasite. Infection by the parasite (positive serologic result only) is distinguished from the clinical manifestations that develop years later, such as destruction of PARASYMPATHETIC GANGLIA; CHAGAS CARDIOMYOPATHY; and dysfunction of the ESOPHAGUS or COLON.
A genus of cone-nosed bugs of the subfamily TRIATOMINAE. Its species are vectors of TRYPANOSOMA CRUZI.
Proteins and peptides found in SALIVA and the SALIVARY GLANDS. Some salivary proteins such as ALPHA-AMYLASES are enzymes, but their composition varies in different individuals.
A genus of the subfamily TRIATOMINAE. Several species are vectors of TRYPANOSOMA CRUZI.
Proteins that contain an iron-porphyrin, or heme, prosthetic group resembling that of hemoglobin. (From Lehninger, Principles of Biochemistry, 1982, p480)
A group of degraded TRITERPENES in which the four terminal carbons of the C17 side chain have been removed, and the remaining portion often forming C17 furans.
A genus of flagellate protozoans found in the blood and lymph of vertebrates and invertebrates, both hosts being required to complete the life cycle.
I'm sorry for any confusion, but "Venezuela" is a country in South America and not a medical term or concept. Therefore, it doesn't have a medical definition.
The agent of South American trypanosomiasis or CHAGAS DISEASE. Its vertebrate hosts are man and various domestic and wild animals. Insects of several species are vectors.
The immature stage in the life cycle of those orders of insects characterized by gradual metamorphosis, in which the young resemble the imago in general form of body, including compound eyes and external wings; also the 8-legged stage of mites and ticks that follows the first moult.
A hemoflagellate parasite affecting domestic and wild animals, as well as humans and invertebrates. Though it induces an immune response, it is non-pathogenic in humans and other vertebrates. It is cross-reactive with TRYPANOSOMA CRUZI and can thus cause false positives for CHAGAS DISEASE.
The blood/lymphlike nutrient fluid of some invertebrates.
I'm sorry for any confusion, but the term "Panama Canal Zone" is geographical and historical, not medical. It refers to the area surrounding and including the Panama Canal that was controlled by the United States from 1903 to 1979, and it's not a medical concept that would have a definition in a medical context.
A family of winged insects of the suborder HETEROPTERA, called assassin bugs, because most prey on other insects. However one subfamily, TRIATOMINAE, attacks humans and other vertebrates and transmits Chagas disease.
The reduction or regulation of the population of noxious, destructive, or dangerous insects through chemical, biological, or other means.
The palm family of order Arecales, subclass Arecidae, class Liliopsida.
"Panama" is not a recognized medical term or condition in healthcare and medicine. It might be a reference to a location, but it does not have a specific medical meaning in itself.
Living facilities for humans.
I'm sorry for any confusion, but "Bolivia" is not a medical term that has a definition in the field of medicine. It is actually the name of a country, specifically the Plurinational State of Bolivia, located in South America. If you have any questions related to medicine or health, I would be happy to try and help answer those for you!

Urate synthesis in the blood-sucking insect rhodnius prolixus. Stimulation by hemin is mediated by protein kinase C. (1/239)

Hemin is a catalyst of the formation of reactive oxygen species. We proposed that hematophagous insects are exposed to intense oxidative stress because of hemoglobin hydrolysis in their midgut (Petretsky, M. D., Ribeiro, J. M. C., Atella, G. C., Masuda, H., and Oliveira, P. L. (1995) J. Biol. Chem. 270, 10893-10896). We have shown that hemin stimulates urate synthesis in the blood-sucking insect Rhodnius prolixus (Graca-Souza, A. V., Petretsky, J. H., Demasi, M., Bechara, E. J. H., and Oliveira, P. L. (1997) Free Radical Biol. Med. 22, 209-214). Once released by fat body cells, urate accumulates in the hemolymph, where this radical scavenger constitutes an important defense against blood-feeding derived oxidative stress. Incubation of Rhodnius fat bodies with okadaic acid raises the level of urate synthesis, suggesting that urate production can be controlled by protein phosphorylation/dephosphorylation. Urate synthesis is stimulated by dibutyryl cAMP and inhibited by N(2((p-bromocinnamil)amino)ethyl)-5-isoquinolinesulfonamide (H-89), an inhibitor of protein kinase A, as well as activated by the protein kinase C activator phorbol 12-myristate 13-acetate. In the presence of hemin, however, inhibition of urate synthesis by H-89 does not occur, suggesting that the hemin stimulatory effect is not mediated by protein kinase A. Calphostin C completely inhibits the hemin-induced urate production, suggesting that the triggering of urate antioxidant response depends on protein kinase C activation. This conclusion is reinforced by the observation that in fat bodies exposed to hemin, both protein kinase C activity and phosphorylation of specific endogenous polypeptides are significantly increased.  (+info)

Bednet impregnation for Chagas disease control: a new perspective. (2/239)

BACKGROUND: To determine the efficacy and acceptability of deltamethrin-impregnated bednets in controlling Chagas disease in South America. METHODS: In three endemic departments of Colombia, a qualitative study on people's knowledge about Chagas disease, vectors, preventive measures and their willingness for collaboration in control operations was undertaken. Additionally, in an entomological study with 100 laboratory-bred Chagas vectors (Rhodnius prolixus), vectors were released for 5 nights (20 each night) in an experimental room, with the human bait protected for one night by an unimpregnated and for four nights by a deltamethrin-impregnated bednet (13 mg/m2). Vectors were stained with fluorescent powder for observation, collected after 10 h exposure in the experimental room and observed for a further 72 h. RESULTS: The study population did not know anything about Chagas disease, but believed the vector to transmit cutaneous leishmaniasis. Therefore willingness to take part in control operations was high. The experimental hut study showed a vector mortality rate of 95% in a room with impregnated nets and of 10% in a room with unimpregnated nets. CONCLUSION: This study opens a new perspective for Chagas disease control in integrated vector borne disease prevention programmes.  (+info)

Utility of the polymerase chain reaction in detection of Trypanosoma cruzi in Guatemalan Chagas' disease vectors. (3/239)

For effective control programs, accurate assessment of Trypanosoma cruzi infection in vectors is essential and has traditionally been performed by microscopic examination. For particular vectors and not others, polymerase chain reaction (PCR) analysis of fecal samples recently has been shown to be an effective means of detection. The sensitivities of the PCR and microscopy for detection of T. cruzi in different anatomic sites were compared in the two major vectors of Guatemala, Triatoma dimidiata and Rhodnius prolixus. Preliminary studies established that T. cruzi can be detected by the PCR in the presence of 90% T. rangeli. One hundred thirty-five vectors were collected, and samples were obtained from the rectum, intestines, and stomach and analyzed by microscopy and the PCR. For Triatoma dimidiata rectal samples, the PCR sensitivity (39.1% T. cruzi positive) and the microscopic sensitivity (24.6% positive) was not significantly different. However, in R. prolixus, the PCR proved significantly more sensitive than microscopy: 57.6% positive by PCR compared with 22.7% by microscopy. Rectal samples showed the highest rates of infection followed by intestine and stomach samples. However, 10.5% of the Rhodnius infections would have been missed if only the rectal sample had been analyzed. Thus, the PCR is significantly more sensitive than microscopy for detection of T. cruzi in R. prolixus. Analysis of anatomic sites in addition to the rectal sample may be necessary for accurate assessment of infection in particular vectors.  (+info)

Kinetic analysis on nitric oxide binding of recombinant Prolixin-S, a nitric oxide transport protein from the bloodsucking bug, Rhodnius prolixus. (4/239)

Kinetics of the NO binding and removal reaction of recombinant Prolixin-S (rProlixin-S) were analyzed using stopped-flow spectrophotometry. The reaction was observed as a biphasic process. The rate constant of the fast phase increased linearly as NO concentration increased. The rate constant at the slow phase increased as NO concentrations increased at low NO concentration, then reached a plateau at high NO concentration. These NO dependencies of the reaction are characteristic of a bimolecular two-step consecutive reaction. The reaction consisted of the fast NO binding reaction of rProlixin-S and the following slow structural change of NO-protein complex. Kinetic studies revealed that the NO binding rate constant was independent of pH, but the rate constant of the NO removal reaction increased as pH increased. The apparent NO dissociation constant (Kd) of rProlixin-S was also calculated from the values of the kinetic parameters obtained in this work. The Kd value increased as pH and temperature increased. The Kd value of rProlixin-S and NO was 10-300 nM in regular physiological condition, which is 103 higher and 103 lower than those of the other ferric and ferrous hemoproteins and NO, respectively. These results indicate that Prolixin-S is one of NO transport proteins regulating blood pressure.  (+info)

The distribution of a CRF-like diuretic peptide in the blood-feeding bug Rhodnius prolixus. (5/239)

The blood-feeding bug Rhodnius prolixus ingests a large blood meal, and this is followed by a rapid diuresis to eliminate excess water and salt. Previous studies have demonstrated that serotonin and an unidentified peptide act as diuretic factors. In other insects, members of the corticotropin-releasing factor (CRF)-related peptide family have been shown to play a role in post-feeding diuresis. Using fluorescence immunohistochemistry and immunogold labelling with antibodies to the Locusta CRF-like diuretic hormone (Locusta-DH) and serotonin, we have mapped the distribution of neurones displaying these phenotypes in R. prolixus. Strong Locusta-DH-like immunoreactivity was found in numerous neurones of the central nervous system (CNS) and, in particular, in medial neurosecretory cells of the brain and in posterior lateral neurosecretory cells of the mesothoracic ganglionic mass (MTGM). Positively stained neurohaemal areas were found associated with the corpus cardiacum (CC) and on abdominal nerves 1 and 2. In addition, Locusta-DH-like immunoreactive nerve processes were found over the posterior midgut and hindgut. Double-labelling studies for Locusta-DH-like and serotonin-like immunoreactivity demonstrated some co-localisation in the CNS; however, no co-localisation was found in the medial neurosecretory cells of the brain, the posterior lateral neurosecretory cells of the MTGM or neurohaemal areas. To confirm the presence of a diuretic factor in the CC and abdominal nerves, extracts were tested in Malpighian tubule secretion assays and cyclic AMP assays. Extracts of the CC and abdominal nerves caused an increase in the rate of secretion and an increase in the level of cyclic AMP in the Malpighian tubules of fifth-instar R. prolixus. The presence of the peptide in neurohaemal terminals of the CC and abdominal nerves that are distinct from serotonin-containing terminals indicates that the peptide is capable of being released into the haemolymph and that this release can be independent of the release of serotonin.  (+info)

A missing metabolic pathway in the cattle tick Boophilus microplus. (6/239)

Heme proteins are involved in a wide variety of biological reactions, including respiration, oxygen transport and oxygen metabolism [1]. The heme prosthetic group is synthesized in almost all living organisms except for a few pathogenic bacteria and trypanosomatids that use blood as food [2] [3]. There is a general belief that all nucleated animal cells synthesize heme [1] [4]. However, blood-feeding arthropods ingest enormous amounts of vertebrate blood in a single meal and the heme pathway has not been studied in these animals. We have examined heme synthesis in two hematophagous arthropods - the blood-sucking bug Rhodnius prolixus and the cattle tick Boophilus microplus. We show that R. prolixus makes heme and has a fully operative heme biosynthetic pathway, while B. microplus does not. To our knowledge, this is the first report of an animal that does not synthesize its own heme and relies solely on the recovery of heme present in the diet. Because of the inability of Boophilus to synthesize heme and its ability to deal efficiently with large amounts of free heme, we propose this organism as a good model for studying heme transport and reutilization in animal cells.  (+info)

Effects of environmental temperature on life tables of Rhodnius neivai Lent, 1953 (Hemiptera: Reduviidae) under experimental conditions. (7/239)

Changes in life tables of Rhodnius neivai due to variations of environmental temperature were studied, based on nine cohorts. Three cohorts were kept at 22 degrees C, three at 27 degrees C and three at 32 degrees C. Cohorts were censused daily during nymphal instars and weekly in adults. Nine complete horizontal life tables were built. A high negative correlation between temperature and age at first laying was registered (r=-0,84). Age at maximum reproduction was significantly lower at 32 degrees C. Average number of eggs/female/week and total eggs/female on its life time were significantly lower at 22 degrees C. Total number of egg by cohort and total number of reproductive weeks were significantly higher at 27 degrees C. At 32 degrees C, generational time was significantly lower. At 27 degrees C net reproductive rate and total reproductive value were significantly higher. At 22 degrees C, intrinsic growth, finite growth and finite birth rates were significantly lower. At 22 degrees C, death instantaneous rate was significantly higher.  (+info)

Metalloproteases in Trypanosoma rangeli-infected Rhodnius prolixus. (8/239)

Protease activities in the haemolymph and fat body in a bloodsucking insect, Rhodnius prolixus, infected with Trypanosoma rangeli, were investigated. After SDS-polyacrylamide gel electrophoresis containing gelatin as substrate, analysis of zymograms performed on samples of different tissues of controls and insects inoculated or orally infected with short or long epimastigotes of T. rangeli, demonstrated distinct patterns of protease activities: (i) proteases were detected in the haemolymph of insects which were fed on, or inoculated with, short epimastigotes of T. rangeli (39 kDa and 33 kDa, respectively), but they were not observed in the fat body taken from these insects; (ii) protease was also presented in the fat bodies derived from naive insects or controls inoculated with sterile phosphate-saline buffer (49 kDa), but it was not detected in the haemolymph of these insects; (iii) no protease activity was observed in both haemolymph and fat bodies taken from insects inoculated with, or fed on, long epimastigotes of T. rangeli. Furthermore, in short epimastigotes of T. rangeli extracts, three bands of the protease activities with apparent molecular weights of 297, 198 and 95 kDa were detected while long epimastigotes preparation presented only two bands of protease activities with molecular weights of 297 and 198 kDa. The proteases from the insect infected with T. rangeli and controls belong to the class of either metalloproteases or metal-activated enzymes since they are inhibited by 1,10-phenanthroline. The significance of these proteases in the insects infected with short epimastigotes of T. rangeli is discussed in relation to the success of the establishment of infection of these parasites in its vector, R. prolixus.  (+info)

"Rhodnius" is not a medical term, but rather it refers to a genus of true bugs in the family Reduviidae. These small, wingless insects are known as "bugs" and are commonly found in tropical regions of the Americas. They feed on plant sap and are also known to be vectors for certain diseases, such as Chagas disease, which is caused by the parasite Trypanosoma cruzi. However, they are not typically associated with human medicine or medical conditions.

Triatominae is a subfamily of insects in the family Reduviidae, also known as assassin bugs. Triatomines are commonly called "kissing bugs" because they often bite humans near the mouth or eyes while they sleep. They are called this because of their habit of feeding on the blood of mammals, including humans, and prefer to bite near the lips or eyes where the skin is thin.

Triatomines are vectors for Trypanosoma cruzi, a parasitic protozoan that causes Chagas disease, a potentially life-threatening illness endemic in the Americas. The transmission of T. cruzi to humans occurs when feces or urine from an infected triatomine is accidentally rubbed into the bite wound or mucous membranes, such as those found in the eyes or mouth.

Triatomines are typically nocturnal and hide during the day in crevices in walls, roofs, or beds. They are attracted to light and can be found near human dwellings, particularly in rural areas with poor housing conditions. Preventing triatomine infestations and reducing contact with these insects is an important part of Chagas disease prevention.

Malpighian tubules are specialized excretory structures found in the circulatory system of many arthropods, including insects. They are named after Marcello Malpighi, an Italian physician and biologist who was one of the first to describe them. These tubules play a crucial role in eliminating waste products and maintaining water and ion balance within the insect's body.

Functionally, Malpighian tubules are analogous to the vertebrate kidneys as they filter the hemolymph (insect blood) and reabsorb necessary substances while excreting waste materials. The main waste product excreted by these tubules is uric acid, which is a less toxic form of nitrogenous waste compared to urea or ammonia, making it more suitable for terrestrial arthropods.

Malpighian tubules originate from the midgut epithelium and extend into the hemocoel (insect body cavity). They are lined with a single layer of epithelial cells that contain microvilli, increasing their surface area for efficient filtration. The tubules receive nutrient-rich hemolymph from the hemocoel through open-ended or blind-ended structures called ostia.

The filtrate formed by Malpighian tubules passes through a series of cellular transport processes involving both active and passive transport mechanisms. These processes help in reabsorbing water, ions, and nutrients back into the hemolymph while concentrating waste products for excretion. The final waste-laden fluid is then released into the hindgut, where it gets mixed with fecal material before being eliminated from the body through the anus.

In summary, Malpighian tubules are vital excretory organs in arthropods that filter hemolymph, reabsorb essential substances, and excrete waste products to maintain homeostasis within their bodies.

Insect vectors are insects that transmit disease-causing pathogens (such as viruses, bacteria, parasites) from one host to another. They do this while feeding on the host's blood or tissues. The insects themselves are not infected by the pathogen but act as mechanical carriers that pass it on during their bite. Examples of diseases spread by insect vectors include malaria (transmitted by mosquitoes), Lyme disease (transmitted by ticks), and plague (transmitted by fleas). Proper prevention measures, such as using insect repellent and reducing standing water where mosquitoes breed, can help reduce the risk of contracting these diseases.

A cloaca is a common cavity or channel in some animals, including many birds and reptiles, that serves as the combined endpoint for the digestive, urinary, and reproductive systems. Feces, urine, and in some cases, eggs are all expelled through this single opening. In humans and other mammals, these systems have separate openings. Anatomical anomalies can result in a human born with a cloaca, which is very rare and typically requires surgical correction.

Chagas disease, also known as American trypanosomiasis, is a tropical parasitic disease caused by the protozoan *Trypanosoma cruzi*. It is primarily transmitted to humans through the feces of triatomine bugs (also called "kissing bugs"), which defecate on the skin of people while they are sleeping. The disease can also be spread through contaminated food or drink, during blood transfusions, from mother to baby during pregnancy or childbirth, and through organ transplantation.

The acute phase of Chagas disease can cause symptoms such as fever, fatigue, body aches, headache, rash, loss of appetite, diarrhea, and vomiting. However, many people do not experience any symptoms during the acute phase. After several weeks or months, most people enter the chronic phase of the disease, which can last for decades or even a lifetime. During this phase, many people do not have any symptoms, but about 20-30% of infected individuals will develop serious cardiac or digestive complications, such as heart failure, arrhythmias, or difficulty swallowing.

Chagas disease is primarily found in Latin America, where it is estimated that around 6-7 million people are infected with the parasite. However, due to increased travel and migration, cases of Chagas disease have been reported in other parts of the world, including North America, Europe, and Asia. There is no vaccine for Chagas disease, but medications are available to treat the infection during the acute phase and to manage symptoms during the chronic phase.

"Panstrongylus" is a genus of kissing bugs (triatomines), which are insects that feed on the blood of mammals, including humans. They are called "kissing bugs" because they often bite humans around the mouth and eyes. The most well-known species in this genus is "Panstrongylus megistus," which is a vector for Chagas disease, a potentially life-threatening illness endemic to Central and South America.

Chagas disease, also known as American trypanosomiasis, is caused by the protozoan parasite Trypanosoma cruzi, which is transmitted to humans through the feces of infected triatomines. The infection can lead to serious cardiac and gastrointestinal complications if left untreated.

It's important to note that while "Panstrongylus" species are vectors for Chagas disease, not all kissing bugs transmit the disease. Furthermore, Chagas disease is primarily a concern in endemic areas of Central and South America, and it's rare for travelers to contract the infection elsewhere.

Salivary proteins and peptides refer to the diverse group of molecules that are present in saliva, which is the clear, slightly alkaline fluid produced by the salivary glands in the mouth. These proteins and peptides play a crucial role in maintaining oral health and contributing to various physiological functions.

Some common types of salivary proteins and peptides include:

1. **Mucins**: These are large, heavily glycosylated proteins that give saliva its viscous quality. They help to lubricate the oral cavity, protect the mucosal surfaces, and aid in food bolus formation.
2. **Amylases**: These enzymes break down carbohydrates into simpler sugars, initiating the digestive process even before food reaches the stomach.
3. **Proline-rich proteins (PRPs)**: PRPs contribute to the buffering capacity of saliva and help protect against tooth erosion by forming a protective layer on tooth enamel.
4. **Histatins**: These are small cationic peptides with antimicrobial properties, playing a significant role in maintaining oral microbial homeostasis and preventing dental caries.
5. **Lactoferrin**: An iron-binding protein that exhibits antibacterial, antifungal, and anti-inflammatory activities, contributing to the overall oral health.
6. **Statherin and Cystatins**: These proteins regulate calcium phosphate precipitation, preventing dental calculus formation and maintaining tooth mineral homeostasis.

Salivary proteins and peptides have attracted significant interest in recent years due to their potential diagnostic and therapeutic applications. Alterations in the composition of these molecules can provide valuable insights into various oral and systemic diseases, making them promising biomarkers for disease detection and monitoring.

Triatoma is a genus of insects in the family Reduviidae, also known as "kissing bugs" or "conenose bugs." These insects are called "kissing bugs" because they often bite humans around the mouth and face. They are found primarily in the Americas, ranging from the southern United States to Argentina.

Triatoma species are of medical importance because they can transmit a parasitic infection called Chagas disease (American trypanosomiasis) to humans through their feces. The parasite that causes Chagas disease, Trypanosoma cruzi, is found in the bug's feces and can enter the human body through mucous membranes or breaks in the skin.

Chagas disease can cause serious health problems, including heart damage and digestive system complications, if left untreated. Therefore, it is important to take precautions to prevent Triatoma bites and seek medical attention promptly if bitten by one of these insects.

Heme proteins are a type of protein that contain a heme group, which is a prosthetic group composed of an iron atom contained in the center of a large organic ring called a porphyrin. The heme group gives these proteins their characteristic red color. Hemeproteins have various important functions in biological systems, including oxygen transport (e.g., hemoglobin), electron transfer (e.g., cytochromes), and enzymatic catalysis (e.g., peroxidases and catalases). The heme group can bind and release gases, such as oxygen and carbon monoxide, and can participate in redox reactions due to the ease with which iron can change its oxidation state.

Limonin is not a medical term, but a chemical compound found in various plants, including citrus fruits. It is a type of limonoid, which is a class of naturally occurring compounds that are known for their bitter taste and potential health benefits. Specifically, limonin is found in the seeds and membranes of citrus fruits such as oranges, lemons, and grapefruits.

Limonin has been studied for its potential medicinal properties, including its antioxidant, anti-inflammatory, and chemopreventive effects. However, more research is needed to fully understand its mechanisms of action and potential health benefits in humans. It's important to note that while limonin may have potential health benefits, it should not be used as a substitute for medical treatment or advice from a healthcare professional.

Trypanosoma is a genus of flagellated protozoan parasites belonging to the family Trypanosomatidae. These microscopic single-celled organisms are known to cause various tropical diseases in humans and animals, including Chagas disease (caused by Trypanosoma cruzi) and African sleeping sickness (caused by Trypanosoma brucei).

The life cycle of Trypanosoma involves alternating between an insect vector (like a tsetse fly or kissing bug) and a mammalian host. The parasites undergo complex morphological changes as they move through the different hosts and developmental stages, often exhibiting distinct forms in the insect vector compared to the mammalian host.

Trypanosoma species have an undulating membrane and a single flagellum that helps them move through their environment. They can be transmitted through various routes, including insect vectors, contaminated food or water, or congenital transmission from mother to offspring. The diseases caused by these parasites can lead to severe health complications and may even be fatal if left untreated.

I'm sorry for any confusion, but "Venezuela" is not a medical term. It is the name of a country located in South America, known officially as the Bolivarian Republic of Venezuela. If you have any questions about medical terms or health-related topics, I would be happy to try and help answer those for you!

Trypanosoma cruzi is a protozoan parasite that causes Chagas disease, also known as American trypanosomiasis. It's transmitted to humans and other mammals through the feces of triatomine bugs, often called "kissing bugs." The parasite can also be spread through contaminated food, drink, or from mother to baby during pregnancy or birth.

The life cycle of Trypanosoma cruzi involves two main forms: the infective metacyclic trypomastigote that is found in the bug's feces and the replicative intracellular amastigote that resides within host cells. The metacyclic trypomastigotes enter the host through mucous membranes or skin lesions, where they invade various types of cells and differentiate into amastigotes. These amastigotes multiply by binary fission and then differentiate back into trypomastigotes, which are released into the bloodstream when the host cell ruptures. The circulating trypomastigotes can then infect other cells or be taken up by another triatomine bug during a blood meal, continuing the life cycle.

Clinical manifestations of Chagas disease range from an acute phase with non-specific symptoms like fever, swelling, and fatigue to a chronic phase characterized by cardiac and gastrointestinal complications, which can develop decades after the initial infection. Early detection and treatment of Chagas disease are crucial for preventing long-term health consequences.

I'm sorry for any confusion, but "Nymph" does not have a medical definition. In general, nymph is a term used in mythology to refer to a minor nature deity typically represented as an attractive maiden or beautiful young woman who animates nature and is often associated with various natural phenomena.

If you have any medical concerns or questions, I would be happy to help if you could provide more information.

Trypanosoma rangeli is a species of protozoan parasite that belongs to the family Trypanosomatidae. It is primarily found in various insects, particularly in triatomine bugs (also known as "kissing bugs"), which serve as its vectors. This parasite is closely related to another more well-known species called Trypanosoma cruzi, which causes Chagas disease in humans and other mammals.

Unlike T. cruzi, however, T. rangeli is not typically associated with causing severe or life-threatening diseases in humans. In fact, most human infections with T. rangeli are considered to be asymptomatic or mildly symptomatic. Some people may experience localized reactions, such as swelling and redness at the site of the insect bite, while a small number of cases might develop fever, headache, or muscle pain.

It is important to note that although T. rangeli infections are generally not harmful to humans, they can still have significant impacts on public health by complicating the diagnosis and treatment of Chagas disease, which can be caused by T. cruzi. The two species can co-infect both vectors and mammalian hosts, making it difficult to distinguish between them based on clinical symptoms or laboratory tests alone.

In summary, Trypanosoma rangeli is a protozoan parasite that primarily infects insects but can also be found in humans and other mammals. While it is not typically associated with severe disease in humans, its presence can complicate the diagnosis and management of Chagas disease caused by T. cruzi.

Hemolymph is not a term typically used in human medicine, but it is commonly used in the study of invertebrates, particularly arthropods such as insects and crustaceans. Hemolymph is the fluid that circulates within the open circulatory system of these animals, serving multiple functions similar to both blood and lymphatic systems in vertebrates.

In simpler terms, hemolymph is a combined fluid that performs the functions of both blood and lymph in invertebrates. It serves as a transport medium for nutrients, waste products, hormones, and immune cells (hemocytes) throughout the body. Hemolymph does not contain red and white blood cells like human blood; instead, hemocytes are the primary cellular components responsible for immune responses and wound healing in these animals.

I'm sorry for any confusion, but "Panama Canal Zone" is not a medical term. It refers to an historical territory that surrounds and includes the Panama Canal, which was under the control of the United States from 1903 to 1979. It's more of a geopolitical or historical term rather than a medical one.

Reduviidae is a family of insects in the order Hemiptera, also known as "assassin bugs." These insects are named for their long, narrow bodies and piercing-sucking mouthparts that they use to feed on other insects and sometimes small vertebrates. Some species of Reduviidae are known to be hematophagous (blood-feeding) and can transmit diseases to humans and animals, such as Chagas disease, which is caused by the parasite Trypanosoma cruzi and transmitted through the feces of infected triatomine bugs. However, most species of Reduviidae are beneficial predators that help control pest insect populations in natural ecosystems.

'Insect control' is not a term typically used in medical definitions. However, it generally refers to the methods and practices used to manage or reduce the population of insects that can be harmful or disruptive to human health, food supply, or property. This can include various strategies such as chemical pesticides, biological control agents, habitat modification, and other integrated pest management techniques.

In medical terms, 'vector control' is a more relevant concept, which refers to the specific practices used to reduce or prevent the transmission of infectious diseases by insects and other arthropods that act as disease vectors (such as mosquitoes, ticks, and fleas). Vector control measures may include the use of insecticides, larvicides, biological control agents, environmental management, personal protection methods, and other integrated vector management strategies.

Arecaceae is the scientific name for the family of plants that includes palm trees. It is a large and diverse family with over 2,600 known species, distributed throughout the tropical and subtropical regions of the world. The plants in this family are characterized by their long, unbranched stems, which can be underground or aboveground, and their large, compound leaves that are arranged in a crown at the top of the stem.

The fruits of many Arecaceae species are also economically important, including coconuts, dates, and acai berries. In addition to their use as food sources, palm trees have many other uses, such as providing materials for construction, fiber for making ropes and baskets, and shade in tropical environments.

I'm sorry for any confusion, but "Panama" is not a medical term. It is a country located in Central America, known for its famous canal and diverse wildlife. If you have any questions about medical terms or conditions, I would be happy to help answer those!

I'm sorry for any confusion, but "housing" is not a term that has a medical definition. In a general sense, housing refers to a place where someone lives, such as a house or apartment. If you have any questions related to healthcare, medicine, or health-related topics, I would be happy to try to help answer them.

I'm sorry for any confusion, but "Bolivia" is not a medical term or concept. It is the name of a country located in South America, known officially as the Plurinational State of Bolivia. If you have any questions related to geography, history, or culture, I would be happy to try and help with those. However, for medical advice or information, it's always best to consult a qualified healthcare professional.

2001 Rhodnius nasutus Stål, 1859 (Tc) Rhodnius neglectus Lent, 1954 (Tc) Rhodnius neivai Lent, 1953 Rhodnius pallescens Barber ... Rhodnius amazonicus Almeida, Santos & Sposina, 1973 Rhodnius brethesi Matta, 1919 (Tc) Rhodnius colombiensis Moreno Mejía, ... 1976 Rhodnius domesticus Neiva & Pinto, 1923 (Tc) Rhodnius ecuadoriensis Lent & León, 1958 (Tc) Rhodnius milesi Carcavallo, ... Rhodnius pictipes Stål, 1872 (Tc) Rhodnius prolixus Stål, 1859 (Tc) (principal vector in Colombia and Venezuela, and in ...
... kissing bug (Rhodnius prolixus) chromosome-length genome assembly ... Download the Rhodnius_prolixus-3.0.3_HiC.fasta.gz file containing the chromosome-length (2n=22) assembly of the rhodnius ... Rhodnius prolixus is a member of the Triatominae subfamily also known as kissing bugs. Kissing bugs are so called from their ... All modifications with respect to the draft (see below) are annotated in the Rhodnius_prolixus-3.0.3_HiC.assembly file. Some ...
This data is of geometric mophometric of the Immature instars of three species of Rhodnius (Hemiptera: Re-duviidae: Triatominae ... This data is of geometric mophometric of the Immature instars of three species of Rhodnius (Hemiptera: Re-duviidae: Triatominae ... Immature instars of three species of Rhodnius (Hemiptera: Re-duviidae: Triatominae): morphological and morphometric studies. ...
... Uehara, Lívia Almeida , Date ... The active cruzipain at 1,5 µg/µL partially restored (30%) the adherence level of T. cruzi pCHAG to Rhodnius prolixus posterior ... UEHARA, L. A. Determinação da relevância da cruzipaína na interação de Trypanosoma cruzi com Rhodnius prolixus. 2010. 77 f. ... dissecado de Rhodnius prolixus. Paralelamente, foi analisado o índice de adesão ao epitélio do T. cruzi que superexpressa a ...
Smar, Strigamia maritima; Edan, Ephemera danica; Rpro, Rhodnius prolixus; Nvit, Nasonia vitripennis; Amel, Apis mellifera; Pcan ... Genome of Rhodnius prolixus, an insect vector of Chagas disease, reveals unique adaptations to hematophagy and parasite ... Rhodnius prolixus, Ephemera danica, Drosophila melanogaster, Aedes aegypti, Tribolium castaneum, Nasonia vitripennis, Polistes ...
Excretion in the Blood-Sucking Bug, Rhodnius Prolixus Stål: III. The Control of the Release of the Diuretic Hormone S. H. P. ... As in Rhodnius, it was shown that the hormone in Anisotarsus is released in response to sensory information received in the ... A companion article has been published: Excretion in the Blood-Sucking Bug, Rhodnius Prolixus Stål: I. The Control of Diuresis ... S. H. P. Maddrell; Excretion in the Blood-Sucking Bug, Rhodnius Prolixus Stål: III. The Control of the Release of the Diuretic ...
Rhodnius nasutus, Rhodnius neglectus4, Rhodnius pallescens, Rhodnius prolixus, Rhodnius robustus5, Rhodnius brethesi6, Rhodnius ... colombiensis, Rhodnius ecuadoriensis7, Rhodnius dalessandroi, Rhodnius pictipes8, Rhodnius montenegrensis9, and Rhodnius neivai ... However, there are no records of T. rangeli infection in Rhodnius amazonicus, Rhodnius barretti, Rhodnius milesi, Rhodnius ... Lent H, Jurberg J, Galvão C. Rhodnius stali n. sp. afim de Rhodnius pictipes Stal, 1872 (Hemiptera, Reduviidae, Triatominae). ...
title = "Which species of Rhodnius is invading houses in Brazil?",. keywords = "B780-tropical-medicine, Entomology, Rhodnius, ... Which species of Rhodnius is invading houses in Brazil?. JP Dujardin, MT Garcia Zapata, J Jurberg, P Roelants, L Cardozo, F ... Which species of Rhodnius is invading houses in Brazil?. In: Transactions of the Royal Society of Tropical Medicine and Hygiene ... Which species of Rhodnius is invading houses in Brazil? Transactions of the Royal Society of Tropical Medicine and Hygiene. ...
"Urate and NOX5 Control Blood Digestion in the Hematophagous Insect Rhodnius prolixus". ... Urate and NOX5 Control Blood Digestion in the Hematophagous Insect ,i,Rhodnius prolixus,/ ... the kissing bug Rhodnius prolixus. RNAi-mediated silencing of RpNOX5 and RpXDH induced early mortality in adult females after a ...
Monitoring Rhodnius neglectus (Lent, 1954) populations susceptibility to insecticide used in controlling actions in urban ... First report of Rhodnius montenegrensis (Hemiptera: Reduviidae: Triatominae) in Bolivia Short Communication. Menezes, André ... This short communication reports for the first time the occurrence of Rhodnius montenegrensis in Bolivia. Methods: Active ... including Rhodnius neglectus, which is wild, well distributed in Brazil, and has formed colonies in palm trees located in urban ...
Rhodnius prolixus, a common vector of Trypanosoma cruzi. Eggs, first- and second-stage nymphs, and adult. View Media Gallery ... Elimination of Rhodnius prolixus in Central America. Parasit Vectors. 2012 Feb 22. 5:45. [QxMD MEDLINE Link]. [Full Text]. ... Rhodnius prolixus, a common vector of Trypanosoma cruzi. Eggs, first- and second-stage nymphs, and adult. ... The three vector species most important in the transmission of T cruzi to humans include Triatoma infestans, Rhodnius prolixus ...
1.4 A crystal structure of nitrophorin 4 from Rhodnius prolixis at pH=5.6. ... 1.4 A crystal structure of nitrophorin 4 from Rhodnius prolixis at pH=5.6. Coordinates. PDB Format Method. X-RAY DIFFRACTION ...
Description of Rhodnius montenegrensis n. sp. (Hemiptera: Reduviidae: Triatominae) from the state of Rondonia, Brazil. Zootaxa ... an understanding of the interactions of Trypanosoma cruzi and Trypanosoma rangeli within the reduviid insect host Rhodnius ...
Rhodnius neglectus: A0A0P4VS06; Drosophila yakuba: Q6XIQ5; Drosophila virilis: B4LTW3; Drosophila simulans: B4Q3I4; Drosophila ... Rhodnius prolixus: R4G370; Regulus satrapa: A0A7K4XH10; Calonectris borealis: A0A7L3XBC7; Bombus impatiens: A0A6P3UYL2; ...
Buck RC: Mitosis and meiosis in Rhodnius prolixus. The fine structure of the spindle and diffuse kinetochore. J Ultrastruct ... The imminent availability of the complete genome of Rhodnius prolixus also opens new perspectives for understanding the ... Chromosome variability in the Chagas disease vector Rhodnius pallescens (Hemiptera: Reduviidae: Rhodniini). Mem Inst Oswaldo ...
Isolation and functional characterization of calcitonin-like diuretic hormone receptors in Rhodnius prolixus. Research output: ...
Rhodnius prolixus Biological Process. cell-cell junction organization Cellular Component. cell-cell junction Freeze-fracture ... images of continuous junctions along epithelial cells from the midgut of Rhodnius prolixus. Figures 78 (upper) and 79 (lower) ...
Juárez, P.; Blomquist, G.J.; Schofield, C.J., Hydrocarbons of Rhodnius prolixus, a Chagas disease vector, Comp. Biochem. ...
"Trypanosoma cruzi, etiological agent of Chagas disease, is virulent to its triatomine vector Rhodnius prolixus in a ...
Exposure to Trypanosoma parasites induces changes in the microbiome of the Chagas disease vector Rhodnius prolixus  Eberhard, ...
Metasternal Gland Volatiles and Sexual Communication in the Triatomine Bug, Rhodnius prolixus. GB Pontes, B Bohman, CR Unelius ...
Changes in antennal gene expression underlying sensory system maturation in Rhodnius prolixus. Insect Biochemistry and ...
Rhodnius prolixus, a common vector of Trypanosoma cruzi. Eggs, first- and second-stage nymphs, and adult. View Media Gallery ... Elimination of Rhodnius prolixus in Central America. Parasit Vectors. 2012 Feb 22. 5:45. [QxMD MEDLINE Link]. [Full Text]. ... Rhodnius prolixus, a common vector of Trypanosoma cruzi. Eggs, first- and second-stage nymphs, and adult. ... The three vector species most important in the transmission of T cruzi to humans include Triatoma infestans, Rhodnius prolixus ...
Rhodnius prolixus. bug populations?. Trop Med Int Health 11. : 1585. -. 1593. .. ), false ... Rhodnius prolixus. bug populations?. Trop Med Int Health 11. : 1585. -. 1593. .. ), false ... Could the Chagas disease elimination programme in Venezuela be compromised by reinvasion of houses by sylvatic Rhodnius ... Could the Chagas disease elimination programme in Venezuela be compromised by reinvasion of houses by sylvatic Rhodnius ...
The Rhodnius prolixus is the main vector for the Chagas parasite - also known as the "kissing bug" disease. Wikimedia *Share on ...
Rhodnius micki, a new species of Triatominae (Hemiptera, Reduviidae) from Bolivia. ZooKeys 1012: 71. DOI: 10.3897/zookeys. ...

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