Abstract
Tanshinone IIA and cryptotanshinone are two pharmacologically active diterpenoids extracted from the roots of Salvia milthiorriza Bunge, a plant used in Chinese traditional medicine for the treatment of some cardiovascular and cerebrovascular disease. Until now, the molecular mechanisms of action of these two diterpenoids on platelets are partially known. To clarify this aspect, here we utilized an integrated study of pharmacology and computational analysis.Our results demonstrate that cryptotanshinone is able to inhibit in a concentration dependent manner the rat platelet aggregation and also is endowed of Gi-coupled P2Y12 receptor antagonist as demonstrated by docking studies. This computational method was also performed for tanshinone IIA demonstrating even for this diterpenoid an interaction with the same receptor.The findings from our study enable a better understanding of tanshinone IIA and cryptotanshinone biological properties, which could ultimately lead to the development of novel pharmaceutical strategies for the treatment and/or prevention of some cardiovascular disease.
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