Increased cannabinoid receptor 1-immunoreactive nerve fibers in overactive and painful bladder disorders and their correlation with symptoms.

“To study the expression of cannabinoid receptor 1 (CB1) in human urinary bladder hypersensitivity and overactivity disorders, and correlate changes with symptoms. Cannabinoid receptor agonists have been shown to modulate urinary bladder contractility and reduce pain after bladder inflammation; their clinical efficacy on lower urinary tract symptoms was demonstrated in the Cannabinoids in Multiple Sclerosis study…


The results of this study suggest that increased nerve fibers, which express CB1, may be related to bladder pain in PBS (painful bladder syndrome) and urgency in IDO (idiopathic detrusor overactivity).

Our findings support clinical trials of CB1 agonists in bladder disorders.”

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