Inhibition of platelet aggregation and arachidonate metabolism in platelets by procyanidins

Wen Chang Chang, Feng-Lin Hsu

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

The effects of procyanidins on platelet aggregation and arachidonate metabolism in platelets were studied. Nine procyanidins were used in this investigation. Procyanidins B-2-S, EEC and C-1 significantly induced the inhibition of platelet aggregation, and the potency of inhibition was comparable with aspirin. Procyanidin B-2-S was used as a representative of procyanidins for further studies on the effect on arachidonate metabolism. In arachidonate metabolism by fatty acid cyclooxygenase pathway, B-2-S inhibited TXB2 and HHT formation by intact platelets treated with exogenous arachidonic acid. It also inhibited TXB2 formation measured by a specific radioimmunoassay when the cells were challenged with calcium ionophore A23187. In cell-free system, B-2-S inhibited both TXB2 and 12-HETE bioxynthesis in platelet microsome and cytosol, respectively. The inhibitory effect on thromboxane biosynthesis might explain the inhibitory effect of procyanidins on platelet aggregation.

Original languageEnglish
Pages (from-to)181-188
Number of pages8
JournalProstaglandins Leukotrienes and Essential Fatty Acids
Volume38
Issue number3
DOIs
Publication statusPublished - 1989

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Enzyme inhibition
Proanthocyanidins
Platelets
Platelet Aggregation
Metabolism
Blood Platelets
Agglomeration
12-Hydroxy-5,8,10,14-eicosatetraenoic Acid
Cell-Free System
Calcium Ionophores
Thromboxanes
Calcimycin
European Union
Prostaglandin-Endoperoxide Synthases
Microsomes
Arachidonic Acid
Cytosol
Biosynthesis
Aspirin
Radioimmunoassay

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Endocrinology, Diabetes and Metabolism

Cite this

Inhibition of platelet aggregation and arachidonate metabolism in platelets by procyanidins. / Chang, Wen Chang; Hsu, Feng-Lin.

In: Prostaglandins Leukotrienes and Essential Fatty Acids, Vol. 38, No. 3, 1989, p. 181-188.

Research output: Contribution to journalArticle

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