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11 resultater

Single oral dose of cannabinoid derivate loaded PLGA nanocarriers relieves neuropathic pain for eleven days.

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Neuropathic pain, resistant to opiates and other drugs, is a chronic/persistent state with a complex treatment and often poor efficacy. In this scenario, cannabinoids are increasingly regarded as a genuine alternative. In this paper, and in an experimental animal model of neuropathic pain, we

Performance of immunoassays in screening for opiates, cannabinoids and amphetamines in post-mortem blood.

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Several immunoassay methods for screening of abused drugs in whole blood were evaluated in post-mortem forensic toxicology. Blood samples known to be positive or negative for opiates, cannabinoids or amphetamines by gas chromatography-mass spectrometry (GC-MS) were analysed by EMIT II Plus and EMIT

Simultaneous quantification of cannabinoids and metabolites in oral fluid by two-dimensional gas chromatography mass spectrometry.

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Development and validation of a method for simultaneous identification and quantification of Delta9-tetrahydrocannabinol (THC), cannabidiol (CBD), cannabinol (CBN), and metabolites 11-hydroxy-THC (11-OH-THC) and 11-nor-9-carboxy-THC (THCCOOH) in oral fluid. Simultaneous analysis was problematic due

Ammonia release from heated 'street' cannabis leaf and its potential toxic effects on cannabis users.

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OBJECTIVE To use selected ion flow tube mass spectrometry (SIFT-MS) to analyse the molecular species emitted by heated 'street' cannabis plant material, especially targeting ammonia. METHODS Samples of 'street' cannabis leaf, held under a UK Home Office licence, were prepared by finely chopping and

A hydrolase enzyme inactivating endogenous ligands for cannabinoid receptors.

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Cannabinoids are psychoactive components of marijuana, and bind to specific G protein-coupled receptors in the brain and other mammalian tissues. Anandamide (arachidonoylethanolamide) was discovered as an endogenous agonist for the cannabinoid receptors. Hydrolysis of anandamide to arachidonic acid

Cannabinoid 1 receptor knockout mice display cold allodynia, but enhanced recovery from spared-nerve injury-induced mechanical hypersensitivity.

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BACKGROUND The function of the Cannabinoid 1 receptor (CB1R) in the development of neuropathic pain is not clear. Mounting evidence suggest that CB1R expression and activation may contribute to pain. Cannabinoid 1 receptor knockout mice (CB1R-/-) generated on a C57Bl/6 background exhibit hypoalgesia

Chromophoric labeling of cannabinoids with 4-dimethylaminoazobenzene-4'-sulfonyl chloride.

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A simple and sensitive assay for the cannabinoids is presented using a dabsylation procedure. Dabsyl derivatives of delta 9-tetrahydrocannabinol (delta 9-THC) and cannabinol (CBN) were prepared by reacting with 4-dimethylaminoazobenzene-4'-sulfonyl chloride (dabsyl chloride) in acetone in the

Evaluation of the CEDIA DAU assays and the AxSym system for the analysis of cannabinoids in whole blood.

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The Microgenics CEDIA DAU (EIA) and the Abbott AxSym system (FPIA) cannabinoids assays were evaluated for their combined effectiveness in the analysis of cannabinoids in whole blood. Blood samples were treated with acetone, evaporated, and reconstituted, and the supernatant was analyzed by the EIA

[Chemical toxicological analysis of urinary cannabinoids by chromatography mass spectrometry].

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A chromato-mass-spectrometric method for identification of cannabinoids and 9-carboxy-11-nor-delta 9-tetrahydrocannabinol by their methyl derivatives is proposed. Use of alkaline hydrolysis in pretreatment of samples ensures the optimal conditions for complete isolation of 9-carboxy-11-nor-delta

Rapid isolation procedure for Δ9-tetrahydrocannabinolic acid A (THCA) from Cannabis sativa using two flash chromatography systems.

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Two isolation procedures for Δ9-tetrahydrocannabinolic acid A (THCA), the biogenetic precursor in the biosynthesis of the psychoactive Δ9-tetrahydrocannabinol (THC) in the cannabis plant, are presented. Two flash chromatography systems that can be used independently from each other were developed to

Death due to diabetic ketoacidosis: Induction by the consumption of synthetic cannabinoids?

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We present a case study on a man who suffered from diabetic ketoacidosis, probably following consumption of synthetic cannabinoids. In blood from a femoral vein AB-CHMINACA, AB-FUBINACA, AM-2201, 5F-AMB, 5F-APINACA, EAM-2201, JWH-018, JWH-122, MAM-2201, STS135 and THJ 2201 could be detected by

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