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Kalpa De Silva, Divaka Perera
A 51-year-old gentleman, who regularly smoked cannabis, presented with chest pain and diaphoresis. He was haemodynamically stable. ECG showed ST depression, inferiorly, and 1 mm ST elevation in lead aVR. Emergent coronary angiography showed thrombotic occlusion of the left main coronary artery (LMCA), the dominant RCA provided Rentrop grade II collaterals to the LAD. The LMCA was successfully reopened by deployment of a bare-metal stent. Animal heart models suggest that endogenous cannibinoids may cause ischaemic preconditioning...
2011: Case Reports in Cardiology
Mithun B Pattathan, Reza A Hejazi, Richard W McCallum
Cannabis use has become one of the most commonly abused drugs in the world. It is estimated that each year 2.6 million individuals in the USA become new users and most are younger than 19 years of age. Reports describe marijuana use as high as 40-50% in male Cyclic Vomiting Syndrome patients. It is this interest in cannabis in the World, coupled with recognition of a cyclic vomiting illness associated with its chronic use that beckons a review of the most current articles, as well as a contribution from our own experiences in this area...
2012: Pharmaceuticals
Yuting Tang, George Ho, Yaxin Li, Meghan A Hall, Robert L Hills, Shawn C Black, Yin Liang, Keith T Demarest
An increasing amount of evidence supports pleiotropic metabolic roles of the cannibinoid-1 receptor (CB1R) in peripheral tissues such as adipose, liver, skeletal muscle and pancreas. To further understand the metabolic consequences of specific blockade of CB1R function in peripheral tissues, we performed a 10-week-study with an anti-sense oligonucleotide directed against the CB1R in diet-induced obese (DIO) AKR/J mice. DIO AKR/J mice were treated with CB1R ASO Isis-414930 (6.25, 12.5 and 25 mg/kg/week) or control ASO Isis-141923 (25 mg/kg/week) via intraperitoneal injection for 10 weeks...
2012: PloS One
H Stambouli, A El Bouri, M A Bellimam, T Bouayoun, N El Karni
Field studies on cannabis cultivation have provided socio-economic data relating to, inter alia, production, yield and income. But only laboratory analyses of cannabis plants can provide information on their chemical composition and their levels of psychoactive constituents, thus enabling them to be classed as a drug type or a fibre type. The present study, which covers cannabis in its fresh, dried and powdered forms, drew on fresh samples, obtained on the day they were harvested or immediately after preparation; that was done in order to prevent any alteration in the A-9-tetrahydrocannabinol (THC) caused by the oxidation that takes place as the product ages...
2005: Bulletin on Narcotics
Sue Peat
Interest in the use of cannabinoids in a clinical setting is gradually increasing, particularly in patients where more conventional treatments have failed. They have been reported as offering perceived benefits in a wide range of conditions, but the major interest at present is centred on their place in pain management and in the palliation of symptoms secondary to terminal cancer and neurological disease. The potential benefits include symptomatic relief for patients suffering from intractable neuropathic pain, anorexia, anxiety and muscle spasm...
October 2010: International Journal of Palliative Nursing
Xiujiang Susie Li, Jace Nielsen, Brenda Cirincione, Hankun Li, Carol Addy, John Wagner, Alan Hartford, Ngozi Erondu, Ira Gantz, Jerry Morgan, Julie Stone
Taranabant is a cannabinoid-1 receptor inverse agonist developed for the treatment of obesity. A population model was constructed to facilitate the estimation of pharmacokinetic parameters and to identify the influence of selected covariates. Data from 12 phase 1 studies and one phase 2 study were pooled from subjects administered single and multiple oral doses of taranabant ranging from 0.5 to 8 mg. A total of 6,834 taranabant plasma concentrations from 187 healthy and 385 obese subjects were used to develop the population model in NONMEM...
December 2010: AAPS Journal
Paul Kuo, Richard H Holloway
Proton pump inhibitors are highly successful in treating gastroesophageal reflux disease, but a significant proportion of patients have persistent symptoms from weakly or nonacidic reflux. Transient lower esophageal sphincter relaxation (TLESR) represents the dominant mechanism of gastroesophageal reflux and has therefore become the most intensely investigated therapeutic target. The triggering of TLESR involve the vagal pathways and the gamma-aminobutyric type B (GABA(B)) and metabotropic glutamate type 5 (mGluR5) receptors...
June 2010: Current Gastroenterology Reports
Yanbin Liang, Chen Li, Victor M Guzman, William W Chang, Albert J Evinger, Dyna Sao, David F Woodward
Regulator of G protein signaling (RGS) proteins act as GTPase-activating proteins (GAPs) for Galpha subunits and negatively regulate G protein-coupled receptor signaling. Using RGS5 gene-specific RT-PCR, we have identified a novel alternative splicing variant of RGS5 mRNA in human ocular tissues. The alternative splicing of RGS5 mRNA occurred at position +44 (GenBank NM_003617), spliced out 174 bp (+44 to +218 bp) of the coding region, and encoded an RGS5s protein with a 108 amino acid N-terminal deletion. This study is the first to document alternative splicing of an RGS5 gene...
February 2005: FEBS Journal
Per Jesper Sjöström, Gina G Turrigiano, Sacha B Nelson
Long-term depression (LTD) was induced in neocortical layer 5 pyramidal connections by pairing presynaptic firing with subthreshold postsynaptic depolarization (dLTD) or via a spike-timing protocol (tLTD). Like tLTD, dLTD reduced short-term depression and increased the coefficient of variation consistent with a presynaptic site of expression. Also like tLTD, dLTD was blocked by CB1 cannibinoid receptor blockade and required activation of presumably presynaptic NR2B-containing N-methyl-D-aspartate receptors...
December 2004: Journal of Neurophysiology
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