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Through lines of D1 receptor mutant mice, it had also been implicated in mediating both the locomotor sensation and rewarding effects of cocaine. Acute cocaine injections induced c-fos and CREB expression via D1 receptors and repeat cocaine administration, which is associated with long lasting AP-1 transcription complexes containing ΔFosB ...
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 ]
Colombia is as of 2019 the world's largest cocaine producer, with production more than tripling since 2013. [220] [221] Three-quarters of the world's annual yield of cocaine has been produced in Colombia, both from cocaine base imported from Peru (primarily the Huallaga Valley) and Bolivia and from locally grown coca. There was a 28% increase ...
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.
Cocaine's mechanism of action in the human brain includes the inhibition of dopamine reuptake, [49] which accounts for cocaine's addictive properties, as dopamine is the critical neurotransmitter for reward. However, cocaine is more active in the dopaminergic neurons of the ventral tegmental area than the substantia nigra.
Authorities seized 126 packages containing 5.6 tons of suspected cocaine, marking the largest drug seizure of the current administration. The navy said 15 suspects were arrested and over 1,000 ...
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 ...
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