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4-HO-TMT
4-HO-TMT, or 4-OH-TMT, also known as 4-hydroxy-''N'',''N'',''N''-trimethyltryptammonium or as dephosphorylated aeruginascin, is a substituted tryptamine chemical derivative, derivative and the active metabolite, active form of aeruginascin (4-PO-TMT), analogously to how psilocin (4-HO-DMT) is the active form of psilocybin (4-PO-DMT). 4-HO-TMT is closely related to bufotenidine, the ''N''-trimethyl structural analog, analogue of serotonin. Like psilocin, 4-HO-TMT shows affinity (pharmacology), affinity for the serotonin 5-HT1A receptor, 5-HT1A, 5-HT2A receptor, 5-HT2A, and 5-HT2B receptor, 5-HT2B receptors. However, its affinities for these receptors are lower than those of psilocin (by 8-, 6-, and 26-fold, respectively). Additionally, in another study, the value of 4-HO-TMT in activating the serotonin 5-HT2A receptor was 324-fold lower than that of psilocin (6800 and 21nM, respectively). Similarly to psilocin, 4-HO-TMT does not bind to the serotonin 5-HT3 receptor, 5-HT3 recepto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeruginascin
Aeruginascin, also known as 4-phosphoryloxy-''N'',''N'',''N''-trimethyltryptamine (4-PO-TMT), is an indoleamine derivative which occurs naturally within the mushrooms '' Inocybe aeruginascens'', ''Pholiotina cyanopus'', and ''Psilocybe cubensis''. It was discovered by Jochen Gartz. Pharmacology Aeruginascin is the ''N''-trimethyl analogue of psilocybin. It is closely related to the frog skin toxin bufotenidine (5-HTQ), a potent serotonin 5-HT3 receptor agonist, but the aeruginascin metabolite 4-HO-TMT (thought to be its active form) shows strong binding at the serotonin 5-HT2 receptors similar to psilocin. Aeruginascin itself has been found to have high affinity for the serotonin 5-HT1A, 5-HT2A, and 5-HT2B receptors, but does not bind to the 5-HT3 receptor. Unlike psilocybin, but similarly to 4-HO-TMT, aeruginascin does not produce the head-twitch response in rodents. It lacks affinity or activation of the mouse 5-HT2A and 5-HT1A receptors. The first scientific literature ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Substituted Tryptamine
Substituted tryptamines, or simply tryptamines, also known as serotonin analogues (i.e., 5-hydroxytryptamine analogues), are organic compounds which may be thought of as being derived from tryptamine itself. The molecular structures of all tryptamines contain an indole ring, joined to an amino group, amino (NH2) group via an ethyl (−CH2–CH2−) side chain, sidechain. In substituted tryptamines, the indole ring, sidechain, and/or amino group are modified by substituting another group for one of the hydrogen (H) atoms. Well-known tryptamines include serotonin, an important neurotransmitter, and melatonin, a hormone involved in regulating the sleep-wake cycle. Tryptamine alkaloids are found in fungi, plants and animals; and sometimes used by humans for the neurological or psychotropic effects of the substance. Prominent examples of tryptamine alkaloids include psilocybin (from "psilocybin mushrooms") and dimethyltryptamine, DMT. In South America, dimethyltryptamine is obtained f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bufotenidine
Bufotenidine, also known as 5-hydroxy-''N'',''N'',''N''-trimethyltryptammonium (5-HTQ), is an indole toxin related to bufotenin, serotonin, and other tryptamines which is found in the venom of a variety of toads. It acts as a selective serotonin 5-HT3 receptor agonist, and has been used in scientific research to study the function of the serotonin 5-HT3 receptor, though this use has been limited by the fact that, as a quaternary amine, it is unable to readily cross the blood-brain-barrier and hence is peripherally selective. See also * 4-HO-TMT * Aeruginascin * 2-Methyl-5-HT * Chlorophenylbiguanide ''meta''-Chlorophenylbiguanide (1-(3-Chlorophenylbiguanide, ''m''-CPBG) is an allosteric agonist and modulator of the 5-HT3 receptor and an antagonist of the α2A-adrenergic receptor. It has anxiogenic, emetic Vomiting (also known as eme ... References 5-HT3 agonists Amphibian toxins Drugs with no legal status Emetics 5-Hydroxytryptamines Peripherally sele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypothermia
Hypothermia is defined as a body core temperature below in humans. Symptoms depend on the temperature. In mild hypothermia, there is shivering and mental confusion. In moderate hypothermia, shivering stops and confusion increases. In severe hypothermia, there may be hallucinations and paradoxical undressing, in which a person removes their clothing, as well as an increased risk of the heart stopping. Hypothermia has two main types of causes. It classically occurs from exposure to cold weather and cold water immersion. It may also occur from any condition that decreases heat production or increases heat loss. Commonly, this includes alcohol intoxication but may also include low blood sugar, anorexia and advanced age. Body temperature is usually maintained near a constant level of through thermoregulation. Efforts to increase body temperature involve shivering, increased voluntary activity, and putting on warmer clothing. Hypothermia may be diagnosed based on either a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Nervous System
The central nervous system (CNS) is the part of the nervous system consisting primarily of the brain, spinal cord and retina. The CNS is so named because the brain integrates the received information and coordinates and influences the activity of all parts of the bodies of bilateria, bilaterally symmetric and triploblastic animals—that is, all multicellular animals except sponges and Coelenterata, diploblasts. It is a structure composed of nervous tissue positioned along the Anatomical_terms_of_location#Rostral,_cranial,_and_caudal, rostral (nose end) to caudal (tail end) axis of the body and may have an enlarged section at the rostral end which is a brain. Only arthropods, cephalopods and vertebrates have a true brain, though precursor structures exist in onychophorans, gastropods and lancelets. The rest of this article exclusively discusses the vertebrate central nervous system, which is radically distinct from all other animals. Overview In vertebrates, the brain and spinal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Membrane
A biological membrane, biomembrane or cell membrane is a selectively permeable membrane that separates the interior of a cell from the external environment or creates intracellular compartments by serving as a boundary between one part of the cell and another. Biological membranes, in the form of eukaryotic cell membranes, consist of a phospholipid bilayer with embedded, integral and peripheral proteins used in communication and transportation of chemicals and ions. The bulk of lipids in a cell membrane provides a fluid matrix for proteins to rotate and laterally diffuse for physiological functioning. Proteins are adapted to high membrane fluidity environment of the lipid bilayer with the presence of an annular lipid shell, consisting of lipid molecules bound tightly to the surface of integral membrane proteins. The cell membranes are different from the isolating tissues formed by layers of cells, such as mucous membranes, basement membranes, and serous membranes. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head-twitch Response
The head-twitch response (HTR), also sometimes known as wet dog shakes (WDS) in rats, is a rapid side-to-side head movement that occurs in mice and rats in association with serotonin 5-HT2A receptor activation. Serotonergic psychedelics like lysergic acid diethylamide (LSD) and psilocybin consistently induce the HTR in rodents. Because of this, the HTR is widely employed in scientific research as an animal behavioral model of hallucinogen effects and in the discovery of new psychedelic drugs. The HTR is one of the only behavioral paradigms for assessment of psychedelic-like effects in animals, with the other most notable test being drug discrimination. However, the HTR is far less costly and time-consuming than drug discrimination and hence has become much more popular in recent years. Limitations of the HTR include the fact that various other drugs besides serotonin 5-HT2A receptor agonists, such as NMDA receptor antagonists and muscarinic acetylcholine receptor antagonists, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serotonergic Psychedelic
Psychedelics are a subclass of hallucinogenic drugs whose primary effect is to trigger non-ordinary mental states (known as psychedelic experiences or "trips") and a perceived "expansion of consciousness". Also referred to as classic hallucinogens or serotonergic hallucinogens, the term ''psychedelic'' is sometimes used more broadly to include various other types of hallucinogens as well, such as those which are atypical or adjacent to psychedelia like salvia and MDMA, respectively. Classic psychedelics generally cause specific psychological, visual, and auditory changes, and oftentimes a substantially altered state of consciousness. They have had the largest influence on science and culture, and include mescaline, LSD, psilocybin, and DMT. There are a large number of both naturally occurring and synthetic serotonergic psychedelics. Most psychedelic drugs fall into one of the three families of chemical compounds: tryptamines, phenethylamines, or lysergamides. They pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypolocomotion
Locomotor activity is a measure of animal behavior which is employed in scientific research. Hyperlocomotion, also known as locomotor hyperactivity, hyperactivity, or increased locomotor activity, is an effect of certain drugs in animals in which locomotor activity (locomotion) is increased. It is induced by certain drugs like psychostimulants and NMDA receptor antagonists and is reversed by certain other drugs like antipsychotics and certain antidepressants. Stimulation of locomotor activity is thought to be mediated by increased signaling in the nucleus accumbens, a major brain area involved in behavioral activation and motivation, motivated behavior. Hypolocomotion, also known as locomotor hypoactivity, hypoactivity, and decreased locomotor activity, is an effect of certain drugs in animals in which locomotor activity is decreased. It is a characteristic effect of many sedative agents and general anesthetics. Antipsychotics, which are dopamine receptor antagonists, and many s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serotonin Receptor
5-HT receptors, 5-hydroxytryptamine receptors, or serotonin receptors, are a group of G protein-coupled receptor and ligand-gated ion channels found in multiple tissues including the central and peripheral nervous systems. They mediate both excitatory and inhibitory neurotransmission. The serotonin (i.e., 5-hydroxytryptamine, hence "5-HT") receptors are activated by the neurotransmitter serotonin, which acts as their natural ligand. The serotonin receptors modulate the release of many neurotransmitters, including glutamate, GABA, dopamine, epinephrine / norepinephrine, and acetylcholine, as well as many hormones, including oxytocin, prolactin, vasopressin, cortisol, corticotropin, and substance P, among others. Serotonin receptors influence various biological and neurological processes such as aggression, anxiety, appetite, cognition, learning, memory, mood, nausea, sleep, and thermoregulation. They are the target of a variety of pharmaceutical and recreational drugs, inclu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norpsilocin
Norpsilocin, also known as 4-hydroxy-''N''-methyltryptamine (4-HO-NMT), is a tryptamine alkaloid recently discovered in 2017 in the psychedelic mushroom ''Psilocybe cubensis''. It is hypothesized to be a dephosphorylated metabolite of baeocystin. Norpsilocin was found to be a near full agonist of the 5-HT2A receptor and was found to be more potent than psilocin. It also has affinity for other serotonin receptors. Moreover, it has been found to cross the blood–brain barrier in animals and to have good metabolic stability similarly to psilocin. Norpsilocin has shown psilocin-related peripheral effects in animals, including decreased spinal reflexes such as knee jerk response (opposite effect to psilocin), antiserotonergic activity (14% of that of psilocin), and pressor activity (70% of that of psilocin). Surprisingly however, in spite of its serotonin 5-HT2A receptor agonism and psilocin-like effects, norpsilocin failed to induce the head-twitch response, a behavioral proxy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trimethyl Ammonium Compounds
Trimethyl ammonium compounds are a type of quaternary ammonium compound with three methyl groups at the nitrogen, with a more complicated carbon chain derivative at the fourth position. Examples include: * Betaine * Bethanechol * Carnitine and its derivatives * Choline and its derivatives * Methacholine * Muscarine * Trimethylglycine Trimethylglycine is an amino acid derivative with the formula . A colorless, water-soluble solid, it occurs in plants. Trimethylglycine is a zwitterion: the molecule contains both a quaternary ammonium cation, quaternary ammonium group and a carb ... * Benzyltrimethylammonium External links * {{MeshName, Trimethyl+ammonium+compounds Quaternary ammonium compounds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
