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Pagina 1 a partire dal 28 risultati
The actions of benzophenanthridine alkaloids, piperonyl butoxide and (S)-methoprene at the G-protein coupled cannabinoid CB₁ receptor in vitro.
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This investigation focused primarily on the interaction of two benzophenanthridine alkaloids (chelerythrine and sanguinarine), piperonyl butoxide and (S)-methoprene with G-protein-coupled cannabinoid CB(1) receptors of mouse brain in vitro. Chelerythrine and sanguinarine inhibited the binding of the
Isolation of cannabisativine, an alkaloid, from Cannabis sativa L. root.
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An ethanol extract of the root of a Mexican variant of Cannabis sativa L.(marijuana) afforded, after partitioning and chromatography, the new spermidine alkaloid cannabisativine.
Discovery of indole alkaloids with cannabinoid CB1 receptor antagonistic activity.
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Three indole alkaloids, voacamine (1), 3,6-oxidovoacangine (2), and a new alkaloid, 5-hydroxy-3,6-oxidovoacangine (3), isolated from Voacanga africana were found to exhibit potent cannabinoid CB1 receptor antagonistic activity. This is the first example of CB1 antagonists derived from natural
Benzophenanthridine alkaloid, piperonyl butoxide and (S)-methoprene action at the cannabinoid-1 receptor (CB1-receptor) pathway of mouse brain: Interference with [(3)H]CP55940 and [(3)H]SR141716A binding and modification of WIN55212-2-dependent inhibition of synaptosomal l-glutamate release.
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Benzophenanthridine alkaloids (chelerythrine and sanguinarine) inhibited binding of [(3)H]SR141716A to mouse brain membranes (IC50s: <1µM). Piperonyl butoxide and (S)-methoprene were less potent (IC50s: 21 and 63µM respectively). Benzophenanthridines and piperonyl butoxide were more selective
Anhydrocannabisativine, a new alkaloid from Cannabis sativa L.
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Ethanol extracts of the leaves and roots of a Mexican variant of Cannabis sativa L. (marijuana) afforded, after partitioning and chromatography, the new spermidine alkaloid, anhydrocannabisativine. The structure was determined by spectral analysis and semisynthesis.
Acute intoxication with nicotine alkaloids and cannabinoids in children from ingestion of cigarettes.
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Cannabis alkaloids.
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Is the clinical use of cannabis by oncology patients advisable?
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The use of the cannabis plant for various medical indications by cancer patients has been rising significantly in the past few years in several European countries, the US and Israel. The increase in use comes from public demand for the most part, and not due to a scientific basis. Cannabis chemistry
"Wild cannabis": A review of the traditional use and phytochemistry of Leonotis leonurus.
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BACKGROUND
Leonotis leonurus, locally commonly known as "wilde dagga" (=wild cannabis), is traditionally used as a decoction, both topically and orally, in the treatment of a wide variety of conditions such as haemorrhoids, eczema, skin rashes, boils, itching, muscular cramps, headache, epilepsy,
Cannabinoid-related agents in the treatment of anxiety disorders: current knowledge and future perspectives.
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Rich evidence has shown that cannabis products exert a broad gamut of effects on emotional regulation. The main psychoactive ingredient of hemp, Δ9-tetrahydrocannabinol (THC), and its synthetic cannabinoid analogs have been reported to either attenuate or exacerbate anxiety and fear-related
Identification of a Potent and Selective Cannabinoid CB1 Receptor Antagonist from Auxarthron reticulatum.
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The fungus Auxarthron reticulatum derived from the marine sponge Ircinia variabilis produced the diketopiperazine alkaloid amauromine (1) and the quinolinone methyl-penicinoline (2). Compound 2 is identical to the reported methyl-marinamide, whose structure is herewith revised. In radioligand
DNA microarray analysis of cannabinoid signaling in mouse brain in vivo.
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To identify novel genes involved in cannabinoid receptor-mediated signaling, we used cDNA microarrays to detect changes in mRNA expression in the forebrains of mice 12 h after they were given a single intraperitoneal dose of the naturally-occurring Cannabis sativa alkaloid
On the definition of cannabinoids: botanical? chemical? pharmacological?
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Cannabinoids (or presumed synonyms such as cannabinols or cannabis-like agents) have been variously defined in botanical, chemical, or pharmacological terms, with unfortunate consequences. Botanical definitions include inactive substances such as cannabigerol, as well as alkaloids and other
Monoclonal antibody against tetrahydrocannabinolic acid distinguishes Cannabis sativa samples from different plant species.
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The cross-reaction of anti-delta 1-THCA MAb against other cannabinoids was very wide. However, other naturally occurring and synthetic phenolics including opium alkaloids did not react to the MAb. Using this ELISA, this paper reports application of the competitive ELISA for detection of marijuana
Benzyl derivatives with in vitro binding affinity for human opioid and cannabinoid receptors from the fungus Eurotium repens.
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Bioassay-guided fractionation of the fungus Eurotium repens resulted in the isolation of two new benzyl derivatives, (E)-2-(hept-1-enyl)-3-(hydroxymethyl)-5-(3-methylbut-2-enyl)benzene-1,4-diol (1) and (E)-4-(hept-1-enyl)-7-(3-methylbut-2-enyl)-2,3-dihydrobenzofuran-2,5-diol (2), along with seven
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