Title : Inhibitory effect of Iboga-type indole alkaloids on capsaicin-induced contraction in isolated mouse rectum.

Pub. Date : 2011 Jan

PMID : 21042867






4 Functional Relationships(s)
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1 In the present study, we investigated the effect of an extract of V. africana and its constituents on smooth muscle contraction induced by capsaicin in mouse rectum, where transient receptor potential vanilloid type 1 (TRPV1)-immunoreactive fibers are abundant. Capsaicin transient receptor potential cation channel, subfamily V, member 1 Mus musculus
2 In the present study, we investigated the effect of an extract of V. africana and its constituents on smooth muscle contraction induced by capsaicin in mouse rectum, where transient receptor potential vanilloid type 1 (TRPV1)-immunoreactive fibers are abundant. Capsaicin transient receptor potential cation channel, subfamily V, member 1 Mus musculus
3 The capsaicin-induced contraction was almost completely inhibited by the TRPV1 antagonist, N-(4-tertiarybutylphenyl)-4-(3-chloropyridin-2-yl)tetrahydropyrazine-1(2H)-carbox-amide (BCTC). Capsaicin transient receptor potential cation channel, subfamily V, member 1 Mus musculus
4 These results suggest that Iboga-type alkaloids isolated from V. africana inhibit capsaicin-induced contraction in the mouse rectum, possibly via the inhibition of a TRPV1-mediated pathway. Capsaicin transient receptor potential cation channel, subfamily V, member 1 Mus musculus