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6-MeO-THH
6-MeO-THH, also known as 6-methoxy-1,2,3,4-tetrahydroharman, is a β-carboline (or more specifically a pinoline) derivative and a structural isomer of tetrahydroharmine (7-MeO-THH). It is mentioned in Alexander Shulgin's book ''TiHKAL'' (''Tryptamines I Have Known and Loved''), stating that 6-MeO-THH is very similar to the other carbolines. The compound has been isolated from certain plants of the ''Virola'' family. Effects 6-MeO-THH is reported to be hallucinogenic similarly to other β-carbolines like harmaline. Limited testing suggests that it possesses mild psychoactive effects at a dose of 1.5mg/kg orally and is said to be about one-third as potent as 6-methoxyharmalan and three times as potent as harmaline. Pharmacology Very little is known about the psychoactivity of 6-MeO-THH in humans. Studies in rats have shown it to bind to a number of serotonin 5-HT1 receptors and 5-HT2 receptors, dopamine D2 receptors, benzodiazepine receptors, and imidazoline receptors. See ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Substituted β-carboline
A substituted β-carboline is a chemical compound featuring a β-carboline moiety (chemistry), moiety with one or more chemical substituent, substitutions. β-Carbolines include more than one hundred alkaloids and synthetic compounds. The effects of these substances depend on their respective substituent. Natural β-carbolines primarily influence brain functions but can also exhibit antioxidant effects. Synthetically designed β-carboline Derivative (chemistry), derivatives have recently been shown to have Neuroprotection, neuroprotective, Neuroenhancement, cognitive enhancing and anti-cancer properties. β-Carbolines are indole alkaloids featuring a fused pyridine and indole ring structure similar to tryptamine, forming a three-ringed system with variable saturation in the third ring. β-Carboline alkaloids naturally occur widely in prokaryotes, plants, animals, certain marine tunicates, and foods like coffee and smoked meats, and are also responsible for the fluorescence of sco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TiHKAL
''TiHKAL: The Continuation'' is a 1997 book written by Alexander Shulgin and Ann Shulgin about a family of psychoactive drugs known as tryptamines. A sequel to '' PiHKAL: A Chemical Love Story'', ''TiHKAL'' is an acronym that stands for "Tryptamines I Have Known and Loved". Content ''TIHKAL'', much like its predecessor ''PIHKAL'', is divided into two parts. The first part, for which all rights are reserved, begins with a fictionalized autobiography, picking up where the similar section of ''PIHKAL'' left off; it then continues with a collection of essays on topics ranging from psychotherapy and the Jungian mind to the prevalence of DMT in nature, ayahuasca and the War on Drugs. The second part of ''TIHKAL'', which may be conditionally distributed for non-commercial reproduction , is a detailed synthesis manual for 55 psychedelic compounds (many discovered by Alexander Shulgin himself), including their chemical structures, dosage recommendations, and qualitative comments. Shul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6-Methoxyharmalan
6-Methoxyharmalan, or 6-methoxyharmalane, also known as 6-methoxy-1-methyl-3,4-dihydro-β-carboline, is a naturally occurring serotonin receptor modulator, monoamine oxidase inhibitor, and hallucinogen of the β-carboline family related to harmaline (7-methoxyharmalan). It is a cyclized tryptamine and analogue of 5-MeO-DMT and melatonin (''N''-acetyl-5-methoxytryptamine). The compound has been isolated from '' Virola'' species. Use and effects 6-Methoxyharmalan has been reported to be hallucinogenic in humans at a dose of 1.5mg/kg (~100mg) orally, with slightly (1.5-fold) greater potency than harmaline. Its onset of action via oral administration is about 1hour. The drug also produces hallucinogenic effects at a dose of 1mg/kg intravenously and with a near-immediate onset by this route. Its hallucinogenic effects are described as similar to those of harmaline. The hallucinogenic effects of β-carbolines like harmaline and 6-methoxyharmalan have been described as qualitatively ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dopamine Receptor D2
Dopamine receptor D2, also known as D2R, is a protein that, in humans, is encoded by the ''DRD2'' gene. After work from Paul Greengard's lab had suggested that dopamine receptors were the site of action of antipsychotic drugs, several groups, including those of Solomon H. Snyder and Philip Seeman used a radiolabeled antipsychotic drug to identify what is now known as the dopamine D2 receptor. The dopamine D2 receptor is the main receptor for most antipsychotic drugs. The structure of DRD2 in complex with the atypical antipsychotic risperidone has been determined. Function D2 receptors are coupled to Gi subtype of G protein. This G protein-coupled receptor inhibits adenylyl cyclase activity. In mice, regulation of D2R surface expression by the neuronal calcium sensor-1 (NCS-1) in the dentate gyrus is involved in exploration, synaptic plasticity and memory formation. Studies have shown potential roles for D2R in retrieval of fear memories in the prelimbic cortex and in d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
5-Methoxytryptamines
5-Methoxytryptamine (5-MT, 5-MeO-T, or 5-OMe-T), also known as serotonin methyl ether or ''O''-methylserotonin and as mexamine, is a tryptamine derivative closely related to the neurotransmitters serotonin and melatonin. It has been shown to occur naturally in the body in low levels, especially in the pineal gland. It is formed via ''O''-methylation of serotonin or ''N''-deacetylation of melatonin. 5-MT is a highly potent and non-selective serotonin receptor agonist and shows serotonergic psychedelic-like effects in animals. However, it is inactive in humans, at least orally, likely due to rapid metabolism by monoamine oxidase (MAO). The levels and effects of 5-MT are dramatically potentiated by monoamine oxidase inhibitors (MAOIs) in animals. Biosynthesis 5-MT can be formed by ''O''-methylation of serotonin mediated by hydroxyindole ''O''-methyltransferase (HIOMT) or by ''N''-deacetylation of melatonin. It is also a precursor of 5-MeO-DMT in some species. Pharmacology Ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hallucinogens
Hallucinogens, also known as psychedelics, entheogens, or historically as psychotomimetics, are a large and diverse class of psychoactive drugs that can produce altered states of consciousness characterized by major alterations in thought, mood, and perception as well as other changes. Hallucinogens are often categorized as either being psychedelics, dissociatives, or deliriants, but not all hallucinogens fall into these three classes. Examples of hallucinogens include psychedelics or serotonin 5-HT2A receptor agonists like LSD, psilocybin, mescaline, and dimethyltryptamine, DMT; dissociatives or NMDA receptor antagonists like ketamine, phencyclidine, PCP, dextromethorphan, DXM, and nitrous oxide; deliriants or antimuscarinics like scopolamine and diphenhydramine; cannabinoids or endocannabinoid system, cannabinoid CB1 receptor, CB1 receptor agonists like tetrahydrocannabinol, THC, nabilone, and JWH-018; kappa-opioid receptor, κ-opioid receptor agonists like salvinorin A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harmala Alkaloid
Harmala alkaloids are several alkaloids that act as monoamine oxidase inhibitors (MAOIs). These alkaloids are found in the seeds of ''Peganum harmala'' (also known as harmal or Syrian rue), as well as ''Banisteriopsis caapi'' (ayahuasca), leaves of tobacco and coffee beans. The alkaloids include harmine, harmaline, harmalol, and their derivatives, which have similar chemical structures, hence the name "harmala alkaloids". These alkaloids are of interest for their use in Amazonian shamanism, where they are derived from other plants. Harmine, once known as telepathine and banisterine, is a naturally occurring substituted β-carboline, β-carboline alkaloid that is structurally related to harmaline, and also found in the vine ''Banisteriopsis caapi''. Tetrahydroharmine is also found in ''B. caapi'' and ''P. harmala''. Dr. Alexander Shulgin has suggested that harmine may be a breakdown product of harmaline. Harmine and harmaline are reversible inhibitors of monoamine oxidase A (RIMA ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imidazoline Receptor
Imidazoline receptors are the primary receptors on which clonidine and other imidazolines act. There are three main classes of imidazoline receptor: I1 is involved in inhibition of the sympathetic nervous system to lower blood pressure, I2 has as yet uncertain functions but is implicated in several psychiatric conditions, and I3 regulates insulin secretion. Classes As of 2017, there are three known subtypes of imidazoline receptors: I1, I2, and I3. I1 receptor The I1 receptor appears to be a G protein-coupled receptor that is localized on the plasma membrane. It may be coupled to PLA2 signalling and thus prostaglandin synthesis. In addition, activation inhibits the sodium-hydrogen antiporter and enzymes of catecholamine synthesis are induced, suggesting that the I1 receptor may belong to the neurocytokine receptor family, since its signaling pathways are similar to those of interleukins. It is found in the neurons of the reticular formation, the dorsomedial medulla oblo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benzodiazepine Receptor
The GABAA receptor (GABAAR) is an ionotropic receptor and ligand-gated ion channel. Its endogenous Ligand (biochemistry), ligand is γ-aminobutyric acid (GABA), the major inhibitory neurotransmitter in the central nervous system. Accurate regulation of GABAergic transmission through appropriate developmental processes, specificity to neural cell types, and responsiveness to activity is crucial for the proper functioning of nearly all aspects of the central nervous system (CNS). Upon opening, the GABAA receptor on the Chemical synapse, postsynaptic cell is selectively permeable to Chloride, chloride ions () and, to a lesser extent, Bicarbonate, bicarbonate ions (). GABAAR are members of the ligand-gated ion channel receptor superfamily, which is a chloride channel family with a dozen or more heterotetrametric subtypes and 19 distinct subunits. These subtypes have distinct brain regional and subcellular localization, age-dependent expression, and the ability to undergo plastic alt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
