• Many plant alkaloids (in small doses) are used as medicinal and recreational compounds, although most of them are dangerous in large amounts. (togogarden.com)
  • There are many, many different types of plant alkaloids, and I only touched on the more common ones in this article. (togogarden.com)
  • It is noteworthy that the synthesis of the alkaloids has led to some of the most brilliant discoveries of the present day, especially in the discovery of dye stuffs. (chestofbooks.com)
  • Since the laticifers and idioblasts are distributed throughout the mesophylls in leaves, often several cell layers away from the epidermis the synthesis of alkaloids like vindoline involves at least two distinct cell types and requires the intercellular translocation of pathway intermediates. (wordpress.com)
  • This is not exactly the case with the higher groups of alkaloids - the derivatives of pyridine and quinoline. (chestofbooks.com)
  • One of the ways that plants deal with their predators is by producing secondary metabolites , including alkaloids . (togogarden.com)
  • Alkaloids are specifically nitrogen-containing compounds, many of which are produced by plants as secondary metabolites, which have pronounced physiological effects on humans (and other animals). (togogarden.com)
  • Based on the biosynthetic pathways, alkaloids are grouped as monoterperiod indole alkaloids (MIA), Benzylisoquinoline alkaloids (BIA), tropane alkaloids, and pyrrolizidine alkaloids. (wordpress.com)
  • I will highlight some of the more common alkaloids, most of which I'm sure you've already heard of, even if you didn't know what they were! (togogarden.com)
  • HSS, the first committed enzyme in pyrrolizidine alkaloid biosynthesis, is localized to the root endodermis and cortex adjacent to the phloem in S. vernalis . (wordpress.com)
  • Yèn sawisé alkaloid iku dikaji, panggolongan salah sijiné alkaloid diowahi miturut asil pangkajian iku, lumrahé njupuk jeneng amine wigati-kanthi-biologi kang nyolok sajeroning prosès sintesisé. (wikipedia.org)
  • Some enzymes , namely, putrescine N-methyl transferase (PMT) and hyoscyamine 6β - hydroxylase (H6H), which catalyze the biosynthesis of the tropane alkaloid scopolamine were localized to the pericycle in the roots of Atropha belladonna and Hyoscyamus muticus . (wordpress.com)
  • Alkaloids are a diverse group of low-molecular-weight, nitrogen-containing compounds derived mostly from amino acids . (wordpress.com)
  • Nicotine is an alkaloid produced by the nightshade family of plants ( Solanaceae ) and derives its name from the tobacco plant ( Nicotiana tabacum ) from which it was first isolated. (togogarden.com)
  • however, nicotine is still a poisonous alkaloid and can be fatal in high amounts. (togogarden.com)
  • Alkaloid ya iku salah sijiné golongan senyawa basa kanthi nitrogen kang akèh-akèhé heterosiklik lan katemokaké ing wit-witan (nanging uga bisa katemokaké ing kéwan ). (wikipedia.org)
  • Lan kanthi prinsip kang padha, senyawa nétral kang kanthi biogenetik gegandhèngan karo alkaloid kalebu ing golongan iki. (wikipedia.org)
  • Yèn biosintesis saka salah sijiné alkaloid ora dingertèni, alkaloid digolongaké miturut jeneng senyawané, kalebu jeneng senyawa kang ora ngandhung nitrogen (amarga struktur molekulé ana sajeroning prodhuk akir. (wikipedia.org)
  • Minangka tuladha: alkaloid opium sok karan "phenanthrenes"), utawa miturut jeneng wit-witan utawa kéwan ing ngendi senyawa iku diisolasi. (wikipedia.org)
  • Istilah "alkaloid" (tegesé "mèmper alkali", amarga dianggep asipat basa ) pisanan dienggo déning Carl Friedrich Wilhelm Meissner ( 1819 ), salah sijiné apotèker saka Halle ( Jerman ) kanggo nyebut sapérangan senyawa kang diéntuki saka èkstraksi wit-witan kang sipaté basa (ing wektu iku wis ditepungi, kaya ta, morfina , striknina , sarta solanina ). (wikipedia.org)
  • Nganti saiki ditepungi watara 10.000 senyawa kang kagolong alkaloid kanthi struktur manéka banget, saéngga nganti saiki ora ana watesan kang cetha kanggoné. (wikipedia.org)
  • Asam amino , peptida , protéin , nukleotid , asem nukleik , gula amino lan antibiotik lumrahé ora éwoning alkaloid. (wikipedia.org)
  • If you have been following Obscura, Dark Fortress, Aborted, Noneuclid, Spawn of Possession, or Blotted Science, then you have been made very aware of this prog-death "supergroup" known as Alkaloid - a phantastical brainchild of Hannes Grossmann, inspired by work of the Maestro Florian "Morean" Maier. (thescreamingrayven.com)
  • The company patented a poppy variety called "Norman" which was stated, in the 1999 Tasmanian Alkaloids Poppy Grower's Bulletin to be the first variety lacking morphine and codeine, while still containing thebaine and oripavine. (wikipedia.org)
  • Indole alkaloids of the fumitremorgin-type contain tryprostatins, cyclotryprostatins, spirotryprostatins, fumitremorgins and verruculogen as well as derivatives thereof. (nature.com)
  • Prenylated indole alkaloids are hybrid natural products containing indole/indoline and isoprenoid moieties or structures derived thereof. (nature.com)
  • Three predominant Uncariae plants, Uncaria rhynchophylla U. sinensis and U. macrophylla and their indole and oxindole alkaloid constituents were studied for their effect on locomotor response. (nih.gov)
  • Water extracts of U. macrophylla and U. sinensis and four indole alkaloids, corynoxine, corynoxine B, isorhynchophylline and geissoschizine methyl ether, significantly decreased locomotor activity after oral administration to mice. (nih.gov)
  • Find a large variety of high quality indole alkaloids at Spectrum Chemical with applications from relieving psychotic symptoms-- to treating high blood pressure. (spectrumchemical.com)
  • Reserpine, an indole alkaloid and antipsychotic drug, is used to control high blood pressure and to relieve psychotic symptoms. (spectrumchemical.com)
  • Catharanthus roseus (L.) G. Don (Apocynaceae) is a medicinal plant that produces indole alkaloids used in cancer chemotherapy. (hindawi.com)
  • This review discusses the isolation, structural elucidation, and biological activities of halogenated indole alkaloids obtained from marine invertebrates. (pubmedcentralcanada.ca)
  • A compilation of the 13 C-NMR spectral data of these selected natural indole alkaloids is also provided. (pubmedcentralcanada.ca)
  • A huge diversity of indole alkaloids are frequently found in marine invertebrates and they have been considered lead compounds for the discovery of new drugs in medicinal chemistry [ 9 , 12 ]. (pubmedcentralcanada.ca)
  • The biological activity of marine indole alkaloids is clearly a product of the unique functionality and elements involved in the biosynthesis of marine natural products. (pubmedcentralcanada.ca)
  • The US Food & Drug Administration (FDA) has concluded that the medicines have been found to contain inconsistent amounts of belladonna alkaloids that may differ from the calculated amount on the products' labels. (thefreedictionary.com)
  • The substance that leads to anticholinergic poisoning is the belladonna alkaloids they contain, which are hyoscyamine, atropine, and scopolamine (8). (thefreedictionary.com)
  • Naturally occurring anticholinergic compounds are also found as belladonna alkaloids in alkaloid-containing plants, which are often brewed into teas and include hemlock (6) and the Chinese herb, huperzine. (thefreedictionary.com)
  • If you have any of these symptoms, stop taking belladonna alkaloids and phenobarbital and call your doctor immediately. (medlineplus.gov)
  • If you become pregnant while taking belladonna alkaloids and phenobarbital, call your doctor. (medlineplus.gov)
  • you should know that belladonna alkaloids may decrease sweating and cause heatstroke. (medlineplus.gov)
  • Unusual excitement, nervousness, restlessness, or irritability and unusual warmth, dryness, and flushing of skin are more likely to occur in children, who are usually more sensitive to the effects of belladonna alkaloids. (mayoclinic.org)
  • Also, when belladonna alkaloids are given to children during hot weather, a rapid increase in body temperature may occur. (mayoclinic.org)
  • and unusual excitement, nervousness, restlessness, or irritability may be more likely to occur in the elderly, who are usually more sensitive than younger adults to the effects of belladonna alkaloids and barbiturates. (mayoclinic.org)
  • It is curious, for example, the case of the Colorado beetle ( Leptinotarsa decemlineata ) whose larvae can feed on leaves of Solanaceae such as tomatoes , potatoes without its dangerous belladonna alkaloids affect them. (botanical-online.com)
  • What is the most important information I should know about belladonna alkaloids and phenobarbital? (peacehealth.org)
  • This medicine is made up of belladonna alkaloids (atropine, hyoscyamine, scopolamine) and phenobarbital. (peacehealth.org)
  • Belladonna alkaloids and phenobarbital is a combination medicine used to treat irritable bowel syndrome and ulcers in the intestine. (peacehealth.org)
  • Belladonna alkaloids and phenobarbital may also be used for purposes not listed in this medication guide. (peacehealth.org)
  • What should I discuss with my healthcare provider before taking belladonna alkaloids and phenobarbital? (peacehealth.org)
  • Belladonna alkaloids and phenobarbital may harm an unborn baby, but the benefit of treating your condition with this medicine may outweigh any risk. (peacehealth.org)
  • How should I take belladonna alkaloids and phenobarbital? (peacehealth.org)
  • Tell any doctor who treats you that you are using belladonna alkaloids and phenobarbital. (peacehealth.org)
  • What should I avoid while taking belladonna alkaloids and phenobarbital? (peacehealth.org)
  • What are the possible side effects of belladonna alkaloids and phenobarbital? (emedicinehealth.com)
  • The ergot alkaloids (EAs) are mycotoxins produced by several species of fungi in the genus Claviceps . (europa.eu)
  • a lower pharmacological activity e. in case of ergot alkaloids. (scribd.com)
  • Ergot alkaloids are toxins produced by members of the fungal family of Clavicipitaceae represented among others by Claviceps purpurea, C. paspali, and C. fusiformis, occurring predominantly on rye, wheat and barley, but also on rice, maize and sorghum, oats and millet. (wur.nl)
  • Ergot alkaloids are among the most relevant natural products in the history of toxins and pharmaceuticals. (mdpi.com)
  • Until the late 20th century, human and livestock exposure to ergot alkaloids was primarily through ingestion of "ergots," which are spur-shaped or seed-like resting structures (sclerotia) of ergot fungi, the Claviceps species. (mdpi.com)
  • Dihydroergotamine Mesylate, USP is an ergot alkaloid medication used to treat active migraine headaches. (spectrumchemical.com)
  • Dihydroergotamine Mesylate, a derivative of ergotamine, is an ergot alkaloid which can be used to treat migraines and can act as an agonist to the serotonin 5-HT(1D) receptors. (spectrumchemical.com)
  • One hundred patients suffering from sustained arterial hypertension were studied over a period of two years during which time the action of parenterally administered hydrogenated ergot alkaloids (Hydergine) constituted the main drug therapy. (ahajournals.org)
  • A practical, efficient, and selective electrochemicalN-demethylation method of tropane alkaloids to their nortropane derivatives is described. (rug.nl)
  • The optimized method was further applied to scopolamine, cocaine, benzatropine, homatropine and tropacocaine, showing that this is a generic way ofN-demethylating tropane alkaloids to synthesize valuable precursors for pharmaceutical products. (rug.nl)
  • International investigations have found two outbreaks of illness in Uganda were likely caused by food aid contaminated with tropane alkaloids. (foodsafetynews.com)
  • The investigation, involving international food safety experts, indicated the probable cause of sickness was contamination of Super Cereal by tropane alkaloids during harvesting or production. (foodsafetynews.com)
  • Laboratory testing commissioned by WFP indicates the presence of tropane alkaloids and is consistent with the product involved in the Karamoja outbreak. (foodsafetynews.com)
  • Smerdon said WFP is working with suppliers to mitigate risks and prevent future contamination from tropane alkaloids. (foodsafetynews.com)
  • WFP is now testing for tropane alkaloids right after production and before distribution. (foodsafetynews.com)
  • At present, there are no clear food safety regulations or global standards for tropane alkaloids in processed foods. (foodsafetynews.com)
  • The sole existing food safety regulation related to tropane alkaloids is a European one for infant foods. (foodsafetynews.com)
  • 4 First generation vinca alkaloids (vincristine) are associated with more severe neuropathy than the newer vinca alkaloids (vinorelbine, vinflunine). (thefreedictionary.com)
  • These include the taxanes (paclitaxel, docetaxel) and the vinca alkaloids (vincristine, vinblastine). (thefreedictionary.com)
  • Vinca alkaloids: vinblastine, vincristine. (newworldencyclopedia.org)
  • [1/15/21] The U.S. Food and Drug Administration is alerting health care professionals to labeling updates for the preparation of vinca alkaloids, a group of chemotherapy agents that includes vincristine sulfate injection, vinblastine sulfate (for) injection, and vinorelbine tartrate injection. (fda.gov)
  • Some alkaloids, such as vincristine, are used to treat cancer. (cancer.gov)
  • Commercially important antineoplastic alkaloids, namely, vinblastine and vincristine, are mainly present in the leaves of C. roseus . (hindawi.com)
  • Other alkaloids possess psychotropic ( e.g. psilocin ) and stimulant activities ( e.g. cocaine , caffeine , nicotine , theobromine ), [13] and have been used in entheogenic rituals or as recreational drugs . (wikipedia.org)
  • Its active principle is theobromine, an alkaloid greatly resembling caffeine, the active principle of coffee and tea. (dictionary.com)
  • According to this interpretation, plant alkaloids used for positive or negative influence on other related species, or to communicate with similar species or inhibit the growth of others that could be competitive, such as cocaine, caffeine or strychnine do to prevent the growth of other species near them. (botanical-online.com)
  • e.g Caffeine False alkaloids are non alkaloids give false positive reaction with alkaloidal reagents. (scribd.com)
  • Caffeine, a purine derivative, does not precipitate like most alkaloids. (friedli.com)
  • Caffeine and Sodium Benzoate Injection (caffeine alkaloid ) is used along with supportive measure to treat respiratory depression associated with over dosage with CNS depressant drugs, such as narcotics. (rxlist.com)
  • Our Caffeine and Sodium Benzoate Injection (caffeine alkaloid) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication. (rxlist.com)
  • A large variety of food-produced alkaloids exhibit potent bioactivities, such as caffeine, atropine, and cocaine, whereas, lots of other alkaloids are toxic to human, such as pyrrolizidine alkaloids. (springer.com)
  • A group of alkaloids, including atropine and scopolamine, found in plants such as belladonna and jimsonweed. (thefreedictionary.com)
  • Synthetically modified cinchona alkaloids are typical chiral organocatalysts used in asymmetric PTC. (sigmaaldrich.com)
  • In particular, the cinchona alkaloids catalyze many useful processes with high enantioselectivities. (sigmaaldrich.com)
  • Cinchona alkaloids can be used as bases to deprotonate substrates with relatively acidic protons forming a contact ion pair between the resulting anion and protonated amine. (sigmaaldrich.com)
  • On the basis of spectral characteristics and chemical transformations, a new alkaloid with the composition C 15 H 22 O 2 N 2 isolated from Sophora alopecuroides has been assigned the most probable structure of 13,14-dehydrosophoridine N-oxide. (springer.com)
  • Chemical structure of ephedrine, a phenethylamine alkaloid. (newworldencyclopedia.org)
  • Alkaloids are natural, organic substances that are predominantly found in plants and normally contain at least one nitrogen atom in their chemical structure. (encyclopedia.com)
  • it could be proven using methods of molecular toxicology that the body has a transport system which transports at least some pyrrolizidine alkaloids out of the body, depending on their specific chemical structure. (bund.de)
  • Recently, in collaboration with Dr. Lisa Marcaurelle and colleagues at the Broad Institute Chemical Biology Platform , we have synthesized second-generation libraries based on these polycyclic alkaloid scaffolds that incorporate functionally diverse appendages and computational strategies for building block selection. (mskcc.org)
  • Spectrum specializes in providing the top imidazole alkaloids but if you do not see the product, grade or form of the ingredient you require, just contact our chemical specialist at 800-772-8786. (spectrumchemical.com)
  • Alkaloid and terpenoid natural products display an extensive array of chemical frameworks and biological activities. (pnas.org)
  • PCA of structural and physicochemical properties indicates that these scaffolds sample a distinct region of chemical space compared to drugs and drug-like libraries, overlapping with polycyclic alkaloid and terpenoid natural products. (pnas.org)
  • Building upon this work, we envisioned the construction of a larger library of alkaloid/terpenoid-like small molecules for further chemical and biological evaluation. (pnas.org)
  • Science: chemical) alkaloids found in various species of senecio and other plants . (biology-online.org)
  • The classification of the alkaloids is complex and is by a set of rules like structure and other chemical features of the alkaloid molecule, its biological origin, as well as the biogenetic origin where known. (omicsonline.org)
  • Narcotic alkaloids used in medicine include morphine and codeine for the relief of pain and cocaine as a local anesthetic. (encyclopedia.com)
  • The opium poppy plant contains narcotic alkaloids such as morphine and codeine. (europa.eu)
  • This opium alkaloid is the biosynthetic precursor of codeine and morphine and serves as the starting material for the industrial production of important pharmaceuticals, such as oxycodone or naloxone. (innovations-report.com)
  • Among the most complex alkaloids are those of the quinine group. (chestofbooks.com)
  • Many alkaloids possess pronounced biological activities, which are often associated with their amine function. (els.net)
  • Alkaloids are highly reactive substances with biological activity in low doses. (friedli.com)
  • Spectrum offers a high quality selection of imidazole alkaloids which can be incorporated into many biological molecules, including histidine. (spectrumchemical.com)
  • Indeed, alkaloid and terpenoid cores are prevalent among privileged scaffolds able to bind multiple biological targets ( 6 ), and a variety of alkaloid- and terpenoid-based libraries have been reported ( 7 - 11 ). (pnas.org)
  • Moreover, the analysis and knowledge of the structure-activity relationships of the phenanthroindolizidine alkaloids with their biological function are also scarce. (aspetjournals.org)
  • Alkaloids are produced by a large variety of organisms including bacteria , fungi , plants , and animals . (wikipedia.org)
  • Alkaloid-containing plants have been used by humans since ancient times for therapeutic and recreational purposes. (wikipedia.org)
  • Extracts from plants containing toxic alkaloids, such as aconitine and tubocurarine , were used since antiquity for poisoning arrows. (wikipedia.org)
  • Vinca alkaloids are a set of anti-mitotic and anti-microtubule alkaloid agents originally derived from the periwinkle plant Catharanthus roseus ( basionym Vinca rosea ) and other vinca plants. (wikipedia.org)
  • Alkaloids are traditionally defined as basic (alkali‐like), nitrogen‐containing organic constituents that occur mainly in plants. (els.net)
  • Alkaloids often have pronounced bioactivities and are therefore thought to play an important role in the interaction of plants with their environment. (els.net)
  • Alkaloids and extracts of alkaloid‐containing plants have been used throughout human history as remedies, poisons and psychoactive drugs. (els.net)
  • Alkaloid‐producing tissue cultures provide an alternative for exploiting slow growing or protected plants. (els.net)
  • Alkaloids from nonflowering plants. (els.net)
  • Most alkaloids occur in plants, although some are produced by fungi and animals. (dictionary.com)
  • the opium alkaloids are sometimes called "phenanthrenes," for example), or by the plants or animals they were isolated from. (newworldencyclopedia.org)
  • Since the identification of the first alkaloid, morphine, from the opium poppy ( Papaver somniferum ) in 1806, more than ten thousand alkaloids have been isolated from plants. (encyclopedia.com)
  • Alkaloids are the active components of numerous medicinal plants or plant-derived drugs and poisons, and their structural diversity and different physiological activities are unmatched by any other group of natural products. (encyclopedia.com)
  • Although alkaloids have been detected in some animals (e.g., in the toxic secretions of fire ants, ladybugs, and toads), their major occurrence is in the flowering plants. (encyclopedia.com)
  • In potato plants, the edible tubers are devoid of alkaloids, whereas the green parts contain the poisonous solanine. (encyclopedia.com)
  • Eating forages plants containing tannins enables livestock to eat more forage plants with high levels of saponins or alkaloids. (usu.edu)
  • What are Plants Alkaloids? (botanical-online.com)
  • Families free from Alkaloids: Rosaceae.Distribution and occurrence: Rare in lower plants. (scribd.com)
  • Pyrrolizidine alkaloids are natural ingredients formed by many different plants as protection against pests. (bund.de)
  • Ito K. "[Studies on the alkaloids of Erythrina plants]" Yakugaku Zasshi . (erowid.org)
  • The Salmonella/mammalian-microsome mutagenicity test was used to evaluate Senecio jacobaea (SJ) plant, Pyrrolizidine alkaloids (PA) and metabolites in goat milk, to evaluate response differences with microsomes from several animal species and to compare SJ plant responses to other plants. (oregonstate.edu)
  • Edgar JA, Roeder E, Molyneux RJ (2002) Honey from plants containing Pyrrolizidine alkaloids (PAs) a potential threat to health. (springer.com)
  • Pyrrolizidine alkaloids (PAs) are natural toxins occurring in a wide variety of plants, including herbs. (rivm.nl)
  • An alkaloid is simply a compound derived from natural sources, like plants or bacteria, that contains a basic nitrogen atom. (study.com)
  • The compound known as morphine is a very important alkaloid that was isolated from the poppy seeds of opium poppy plants back in 1804 and is heralded for its pain-relieving properties. (study.com)
  • Pyrrolizidine alkaloids are also poisonous to humans, although, of course, we are unlikely to include ragwort or other toxic plants in our diet. (chemistryworld.com)
  • There has been some concern, however, about the regular consumption of herbal remedies prepared from plants that may contain the alkaloids. (chemistryworld.com)
  • Alkaloids are produced by a large variety of organisms, including bacteria, fungi, plants, and animals and are part of the group of natural products, also called secondary metabolites. (omicsonline.org)
  • Beta-carboline alkaloids, present in a wide variety of medicinal plants allegedly have antioxidant properties. (healthjockey.com)
  • This is not exactly the case with the higher groups of alkaloids - the derivatives of pyridine and quinoline. (chestofbooks.com)
  • Alkaloids with a piperidine building block are widespread and are usually further subdivided according to their occurrence and biogenetic origin. (wikipedia.org)
  • The most important representative of piperidine alkaloids is piperine, which is responsible for the pungent taste of pepper. (wikipedia.org)
  • The piperidine alkaloids also include the sedum alkaloids (e.g. sedamine), pelletierine, the lobelia alkaloids (e.g. lobeline), the conium alkaloids (such as coniine) and the pinus alkaloids. (wikipedia.org)
  • We find, indeed, that obstacles are gradually being cleared away, and the actual synthetic formation of such alkaloids as piperidine and coniine is a proof that the chemist is on the right track in studying the decomposition products, and building up from them, theoretically, bodies of similar constitution. (chestofbooks.com)
  • He at first supposed that this alkaloid was piperidine in which two hydrogen atoms were replaced by the isopropyl radical (CH), its formula being taken as CH(CH)NH. (chestofbooks.com)
  • Alkaloids have the ability to form salts with mineral acids (such as with HCl, H 2 SO 4 , HNO 3 ) or organic acids (such as with tartaric acid and sulfamic acid). (newworldencyclopedia.org)
  • acetic acids Salts with inorganic acids e.Forms of Alkaloids: Free bases Salts with Organic acids e. (scribd.com)
  • Alkaloids are basic - they form water soluble salts. (friedli.com)
  • Most alkaloids are well-defined crystalline substances which unite with acids to form salts. (friedli.com)
  • Extraction: The extraction is carried out with chloroform after liberation of the alkaloids from their salts by NH 4 OH. (themediaconsortium.com)
  • strychnine is obtained from the seed of the Strychnine tree ( Strychnos nux-vomica L.). [5] Where several alkaloids are extracted from one plant their names are often distinguished by variations in the suffix: "idine", "anine", "aline", "inine" etc. (wikipedia.org)
  • Strychnine, Free Base, also known as Strychnidin-10-one, is a bitter crystalline alkaloid. (spectrumchemical.com)
  • Radiation Processed Carrageenan Improves Plant Growth, Physiological Activities, and Alkaloids Production in Catharanthus roseus L. (hindawi.com)
  • Alkaloids are usually derivatives of amino acids , and many have a bitter taste. (newworldencyclopedia.org)
  • True (Typical) alkaloids that are derived from amino acids and have nitrogen in a heterocyclic ring. (scribd.com)
  • e.g Ephedrine Pseudo alkaloids that are not derived from amino acids but have nitrogen in a heterocyclic ring. (scribd.com)
  • The basic unit in the biogenesis of the true alkaloids are AMINO ACIDS. (friedli.com)
  • What alkaloids are and their importance to the medicinal world. (scribd.com)
  • The Isoquinoline Alkaloids: Chemistry and Pharmacology presents an overview of the chemistry, biogenesis, spectroscopy, and pharmacology of the isoquinoline alkaloids. (elsevier.com)
  • He has proved that the alkaloid so obtained is identical with that prepared from piperine. (chestofbooks.com)
  • Colchicine, Piperine, Quaternary alkaloids. (scribd.com)
  • Epinephrine and norepinephrine condensed with acetaldehyde or with formaldehyde in dilute aqueous solution at neutral pH and room temperature to form 1,2,3,4-tetrahydroiso-quinoline alkaloids. (sciencemag.org)
  • The atoms derived from the precursor tryptophan are labelled red in the alkaloids. (els.net)
  • The atoms derived from tyrosine are marked red in the depicted alkaloids. (els.net)
  • A variety of cyclization reactions are then used to generate diverse polycyclic molecules related to alkaloid and terpenoid natural products. (mskcc.org)
  • Treatment of type 2 diabetes and dyslipidemia with the natural plant alkaloid berberine. (nih.gov)
  • Berberine, a natural plant alkaloid, is usually used as an antibiotic drug. (nih.gov)
  • Alkaloids can occur in all parts of the plant but frequently, depending on the plant species, they accumulate only in particular organs (e.g., in barks, roots, leaves, and fruits), whereas at the same time other organs are alkaloid-free. (encyclopedia.com)
  • Hepatotoxic pyrrolizidine alkaloids occur not only in ragworts but also in several thousand other species of plant, with some containing over one hundred different hepatotoxins. (chemistryworld.com)
  • An alkaloid is a nitrogenous organic molecule that has a pharmacological effect on humans and other animals. (wikimedia.org)
  • Other factors influencing the alkaloid contamination of poppy seeds and products are, e.g. the variety of poppy plant and growth conditions like drought and fungi as stress factors. (woxikon.de)
  • 1 These data were subsequently processed using the UNIFI Scientific Information System and screened against the new plant alkaloid library. (waters.com)
  • The opium alkaloid content of poppy seeds can be reduced by several means of pretreatment and food processing. (woxikon.de)
  • Erowid.org: Erowid Reference 7566 : Ayahuasca Imagery and the Therapeutic Property of the Harmala Alkaloids : Naranjo, C. (erowid.org)
  • The first individual alkaloid, morphine , was isolated in 1804 from the opium poppy ( Papaver somniferum ). (wikipedia.org)
  • Now that we have our crude alkaloid mixture, we need to separate and purify each individual alkaloid from one another. (study.com)
  • The last chapter deals with ancistrocladine, which is the first isoquinoline alkaloid found to possess a methyl group. (elsevier.com)
  • Among these, one of the most poisonous are the seeds of castor oil plant ( Ricinus communis ) that contain the alkaloid ricinine, whose properties have been used as a purgative, but it is extremely dangerous, since a couple of well-chewed seeds can be fatal to a child. (botanical-online.com)
  • As tests conducted by the German Federal Institute for Risk Assessment and examination authorities of the federal states show, pyrrolizidine alkaloids can occur as contaminants in foods such as tea, salad mixes and honey, sometimes in high concentrations. (bund.de)
  • Various alkaloids have pharmacological effects on humans and animals . (newworldencyclopedia.org)
  • Chemists have been fascinated by pyrrolizidine alkaloids for many years, especially as they are known to have pharmacological effects. (chemistryworld.com)
  • Owing to their bioactivities, alkaloids are often toxic to herbivoures. (els.net)
  • It was also shown in these tests that the toxic pyrrolizidine alkaloids affect liver cells in different ways. (bund.de)
  • Under the title "Identification of the structure-dependent toxicity of hepatotoxic pyrrolizidine alkaloids", structure-specific differences of the various pyrrolizidine alkaloids are to be determined and the resultant differences in the toxic effect further examined. (bund.de)
  • In-vitro cell culture models are to be used her on the one hand while on the other, the toxic effect of the pyrrolizidine alkaloids on mouse liver is also to be observed in real time using modern imaging methods. (bund.de)
  • This chapter focuses on the alkaloids in human diet and their mode of action and possible toxic effects. (springer.com)
  • Many alkaloids are toxic to other organisms. (omicsonline.org)
  • Alkaloids are bases and usually form colorless crystalline solids with a bitter taste. (dictionary.com)
  • Canadine is orange.Color: IIThe majority of alkaloids are colorless but some are colored e.g.Condition: Most alkaloids are crystalline solids. (scribd.com)