Title : Physiological role of Ca2+-permeable nonselective cation channel in endothelin-1-induced contraction of rabbit aorta.

Pub. Date : 1997 Oct

PMID : 9335411






2 Functional Relationships(s)
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1 The contraction by a low concentration of ET-1 was abolished after removal of extracellular Ca2+, but it was reduced only to 50% by a maximally effective concentration (10[-5] M) of nifedipine, an inhibitor of L-type VOCs (L-VOC). Nifedipine endothelin-1 Oryctolagus cuniculus
2 Mefenamic acid and SK&F 96365 inhibited the ET-1-induced contraction with 50% inhibitory concentration (IC50) values of 10(-4) M and 2 x 10(-5) M, respectively, and abolished it at 10(-3) M and 10(-4) M. By contrast, nifedipine, mefenamic acid, or SK&F 96365 had little effect on the contraction by a high concentration of ET-1. Nifedipine endothelin-1 Oryctolagus cuniculus