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Chemical structure of cocaine. The biosynthesis of cocaine has long attracted the attention of biochemists and organic chemists. This interest is partly motivated by the strong physiological effects of cocaine, but a further incentive was the unusual bicyclic structure of the molecule. The biosynthesis can be viewed as occurring in two phases ...
Cocaine (from French cocaïne, from Spanish coca, ultimately from Quechua kúka) [13] is a tropane alkaloid that acts as a central nervous system stimulant.As an extract, it is mainly used recreationally and often illegally for its euphoric and rewarding effects.
In a Phase 2 study, TNX-1300 at 100 mg or 200 mg i.v. doses was well tolerated and interrupted cocaine effects after cocaine 50 mg i.v. challenge. [ 9 ] The enzyme is important in bioremediation , levels of cocaine in European ocean water were cited at 20 ng/L, similar levels in which swollen muscles, and in some cases broken muscle fibers of ...
In 2005, scientists found surprisingly large quantities of benzoylecgonine in Italy's Po River and used its concentration to estimate the number of cocaine users in the region. [4] In 2006, a similar study was performed in the Swiss ski town of Saint-Moritz using wastewater to estimate the daily cocaine consumption of the population. [ 5 ]
6531 13162 Ensembl ENSG00000142319 ENSG00000276996 ENSMUSG00000021609 UniProt Q01959 Q61327 RefSeq (mRNA) NM_001044 NM_010020 RefSeq (protein) NP_001035 NP_034150 Location (UCSC) Chr 5: 1.39 – 1.45 Mb Chr 13: 73.68 – 73.73 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse The dopamine transporter (DAT, also sodium-dependent dopamine transporter) is a membrane-spanning protein coded ...
At the neuromuscular junction, presynaptic motor axons terminate 30 nanometers from the cell membrane or sarcolemma of a muscle fiber. The sarcolemma at the junction has invaginations called postjunctional folds, which increase its surface area facing the synaptic cleft. [4]
This receptor had been seen to modulate the rewarding effects of cocaine, and receptor antagonists had blocked the acute locomotor stimulating effect and lowered behavioral sensitization. Changes in the sigma 1 receptor have been shown to modulate dopamine release, so shifts in its expression can change the behavioral responses to cocaine with ...
The effect of these structural changes on behavior is uncertain and studies have produced conflicting results. Two studies [18] [19] have shown that an increase in dendritic spine density due to cocaine exposure facilitates behavioral sensitization, while two other studies [20] [21] produce contradicting evidence.