Title : Inhibition of platelet-activating factor binding to human platelets by calcium channel blockers.

Pub. Date : 1987 Mar 1

PMID : 3590086






5 Functional Relationships(s)
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1 Diltiazem and verapamil inhibited aggregation by PAF in a dose-dependent manner with 50% inhibition at 2.8 +/- 1.4 X 10(-5) M diltiazem (mean +/- SD, n = 5) and 4.2 +/- 2.0 X 10(-5) M verapamil. Verapamil PCNA clamp associated factor Homo sapiens
2 Diltiazem and verapamil inhibited aggregation by PAF in a dose-dependent manner with 50% inhibition at 2.8 +/- 1.4 X 10(-5) M diltiazem (mean +/- SD, n = 5) and 4.2 +/- 2.0 X 10(-5) M verapamil. Verapamil PCNA clamp associated factor Homo sapiens
3 Both channel blockers also inhibited PAF binding in a dose-dependent manner with 50% inhibition at 4.7 +/- 2.5 X 10(-5) M diltiazem and 6.3 +/- 1.2 X 10(-5) M verapamil. Verapamil PCNA clamp associated factor Homo sapiens
4 Scatchard analysis of PAF binding in the presence of different fixed concentrations of either diltiazem or verapamil revealed that these agents both increased PAF receptor number and decreased the receptor binding affinity. Verapamil PCNA clamp associated factor Homo sapiens
5 Scatchard analysis of PAF binding in the presence of different fixed concentrations of either diltiazem or verapamil revealed that these agents both increased PAF receptor number and decreased the receptor binding affinity. Verapamil PCNA clamp associated factor Homo sapiens