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Cannabinoids and the Endocannabinoid System in Lower Urinary Tract Function and Dysfunction
Linköping University, Department of Medical and Health Sciences, Division of Drug Research. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center for Diagnostics, Department of Clinical Pharmacology.
2014 (English)In: Neurourology and Urodynamics, ISSN 0733-2467, E-ISSN 1520-6777, Vol. 33, no 1, 46-53 p.Article in journal (Refereed) Published
Abstract [en]

AimsTo review knowledge on cannabinoids and the endocannabinoid system in lower urinary tract function and dysfunction. MethodsReview of MEDLINE using defined search terms, and manual analysis. Articles published in English were included. Results and DiscussionComponents of the endocannabinoid systemcannabinoid (CB) receptor types 1 and 2, anandamide, and fatty acid amide hydrolase (FAAH), which degrades anandamide and related fatty-acid amideshave been located to lower urinary tract tissues of mice, rats, monkeys, and humans. Studies have located CB receptors in urothelium and sensory nerves and FAAH in the urothelium. CB receptor- and FAAH-related activities have also been reported in the lumbosacral spinal cord. Data on supraspinal CB functions in relation to micturition are lacking. Cannabinoids are reported to reduce sensory activity of isolated tissues, cause antihyperalgesia in animal studies of bladder inflammation, affect urodynamics parameters reflecting sensory functions in animals models, and appear to have effects on storage symptoms in humans. FAAH inhibitors have affected sensory bladder functions and reduced bladder overactivity in rat models. Cannabinoids may modify nerve-mediated functions of isolated lower urinary tract tissues. ConclusionsEvidence suggests components of the endocannabinoid system are involved in regulation of bladder function, possibly at several levels of the micturition pathway. It is unclear if either CB receptor has a dominant role in modification of sensory signals or if differences exist at peripheral and central nervous sites. Amplification of endocannabinoid activity by FAAH inhibitors may be an attractive drug target in specific pathways involved in LUTS.

Place, publisher, year, edition, pages
Wiley-Blackwell , 2014. Vol. 33, no 1, 46-53 p.
Keyword [en]
cannabinoid; cystometry; fatty acid amide hydrolase; receptor; sensation; urinary bladder
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-103284DOI: 10.1002/nau.22442ISI: 000328089600007OAI: diva2:688502
Available from: 2014-01-17 Created: 2014-01-16 Last updated: 2014-01-17

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Hedlund, Petter
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Division of Drug ResearchFaculty of Health SciencesDepartment of Clinical Pharmacology
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