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Barana A, Amorós I, Caballero R, Gómez R, Osuna L, Lillo MP, Blázquez C, Guzmán M, Delpón E, Tamargo J

Endocannabinoids and cannabinoid analogues block cardiac hKv1.5 channels in a cannabinoid receptor-independent manner.

Cardiovasc. Res.. 2010 Jan;85(1):56-67, PMID: 19689982

Endocannabinoids are synthesized from lipid precursors at the plasma membranes of virtually all cell types, including cardiac myocytes. Endocannabinoids can modulate neuronal and vascular ion channels through receptor-independent actions; however, their effects on cardiac K(+) channels are unknown. This study was undertaken to determine the receptor-independent effects of endocannabinoids such as anandamide (N-arachidonoylethanolamine, AEA), 2-arachidonoylglycerol (2-AG), and endocannabinoid-related compounds such as N-palmitoylethanolamine (PEA), N-oleoylethanolamine (OEA), the endogenous lipid lysophosphatidylinositol (LPI), and the fatty acids from which some of these compounds are endogenously synthesized, on human cardiac Kv1.5 channels, which generate the ultrarapid delayed rectifier current (I(Kur)).


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Ministerio de Economía y Competitividad Fondo Europeo de Desarrollo Regional IMIM - Parc de Salut Mar