Melbourne: American and Chinese scientists have found that the activation of receptors in the brains of mice can counteract the behavioural and addictive effects of cocaine, a major breakthrough that may pave the way for new treatments of drug addiction.There are two major cannabinoid receptor types: CB1 and CB2.CB1 receptors, which are found in large numbers in the brain activated by drugs such as marijuana. They are known to stimulate the brain`s reward system, which is why they have been the focus of addiction research.CB2 receptors are primarily located on the body`s immune cells. They are also known to be involved in pain perception.
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