Abstract:
:Piper longum L. has been used as a crude drug for the treatment of the disorder of peripherally poor blood circulation in Asia. In the present study, we examined the effect of piperlongumine, a constituent of P. longum L., on rabbit platelet aggregation. Piperlongumine concentration-dependently inhibited platelet aggregation induced by thromboxane A(2) receptor agonist U46619, but it only slightly inhibited thrombin-induced one. Piperlongumine also inhibited U46619-induced phosphatidylinositol hydrolysis and the binding of [(3)H]SQ29548 to thromboxane A(2) receptor with a similar concentration-dependency to the aggregation. It is assumed that piperlongumine inhibits platelet aggregation as a thromboxane A(2) receptor antagonist.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Iwashita M,Oka N,Ohkubo S,Saito M,Nakahata Ndoi
10.1016/j.ejphar.2007.05.073subject
Has Abstractpub_date
2007-09-10 00:00:00pages
38-42issue
1-3eissn
0014-2999issn
1879-0712pii
S0014-2999(07)00672-3journal_volume
570pub_type
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