Labdane 302
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1. Envolvimento dos canais de potássio na ação espasmolítica do ácido 8(17), 12E, 14-labdatrieno-18-óico (labdano-302), isolado de Xylopia langsdorfiana A. St.-Hil. &Tul. em íleo isolado de cobaia / Involvement of potassium channels in the spasmolytic action of 8(17),12E, 14-labdatrien-18 oic acid (labdane-302), obtained from Xylopia langsdorfiana A. St.-Hil. &Tul. on guinea-pig ileum
8(17),12e,14-labdatrien-18 oic acid (labdane-302), is a diterpene isolated from the stem bark of Xylopia langsdorfiana A. St.-Hil. &Tul. In a preliminary study, Ribeiro (2003) demonstrated that labdane-302 inhibited the phasic contractions induced by carbachol (CCh) or histamine (IC50 = 1.7 0.5 and 0.9 0.2 x 10-5 M, respectively) on guinea-
Publicado em: 2008