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J Microsc Ultrastruct. 2018 Oct-Dec;6(4):171-176. doi: 10.4103/JMAU.JMAU_42_18.

Cannabinoids for Treating Cardiovascular Disorders: Putting Together a Complex Puzzle.

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1
Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia.

Abstract

Cannabinoids have been increasingly gaining attention for their therapeutic potential in treating various cardiovascular disorders. These disorders include myocardial infarction, hypertension, atherosclerosis, arrhythmias, and metabolic disorders. The aim of this review is to cover the main actions of cannabinoids on the cardiovascular system by examining the most recent advances in this field and major literature reviews. It is well recognized that the actions of cannabinoids are mediated by either cannabinoid 1 or cannabinoid 2 receptors (CB2Rs). Endocannabinoids produce a triphasic response on blood pressure, while synthetic cannabinoids show a tissue-specific and species-specific response. Blocking cannabinoid 1 receptors have been shown to be effective against cardiometabolic disorders, although this should be done peripherally. Blocking CB2Rs may be a useful way to treat atherosclerosis by affecting immune cells. The activation of CB2Rs was reported to be useful in animal studies of myocardial infarction and cardiac arrhythmia. Although cannabinoids show promising effects in animal models, this does not always translate into human studies, and therefore, extensive clinical studies are needed to truly establish their utility in treating cardiovascular disease.

KEYWORDS:

Cannabinoid 1 receptor; cannabinoid 2 receptor; cannabinoids; cardiovascular; metabolic disorders

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