Crocin prevents sesamol-induced oxidative stress and apoptosis in human platelets

Thushara, R. M. and Hemshekhar, M. and Paul, Manoj and Sundaram, M. S. and Shankar, Rohith L. and Kemparaju, K. and Girish, K. S. (2014) Crocin prevents sesamol-induced oxidative stress and apoptosis in human platelets. Journal of Thrombosis and Thrombolysis, 38 (3). pp. 321-330. ISSN 0929-5305

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Recent studies have reported the platelet proapoptotic propensity of plant-derived molecules such as, resveratrol, thymoquinone, andrographolide and gossypol. Meanwhile, there were also reports of phytochemicals such as cinnamtannin B1, which shows antiapoptotic effect towards platelets. Platelets are mainly involved in hemostasis, thrombosis and wound healing. However, altered platelet functions can have serious pathological outcomes that include cardiovascular diseases. Platelets are sensitive to external and internal stimuli including therapeutic and dietary components. The anuclear platelets do undergo apoptosis via mitochondrial pathway. However, exaggerated rate of platelet apoptosis could lead to thrombocytopenia and other bleeding disorders. The present study deals with ameliorative efficacy of crocin on sesamol-induced platelet apoptosis. The antiapoptotic property of crocin and the proapoptotic tendency of sesamol in platelets were previously demonstrated. Therefore, it was interesting to see how these two compounds would interact and wield their effects on human platelets. Crocin effectively inhibited sesamol-induced oxidative stress on platelets, which was evidenced by the measurement of endogenously generated reactive oxygen species, particularly hydrogen peroxide, and changes in thiol levels. Further, crocin abrogated sesamol-induced biochemical events of apoptosis in platelets, which include intracellular calcium mobilization, changes in mitochondrial membrane integrity, cytochrome c release, caspase activity and phosphatidylserine externalization. Even though sesamol has proapoptotic effects on platelets, its anti-platelet activity cannot be neglected. Thus, the study proposes that sesamol could be supplemented with crocin, an approach that could not only abolish the toxic effects of sesamol on platelets, but also enhance the quality of treatment due to their synergistic action.

Item Type: Article
Additional Information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - J Thromb Thrombolysis [Field not mapped to EPrints]
Uncontrolled Keywords: Oxidative stress, Platelet apoptosis, Sesamol, Crocin, Mitochondrial membrane potential, Caspases
Subjects: Agriculture Biological Sciences > Biochemistry
University of Mysore > PG Campuses > Manasagangotri, Mysore > Agriculture Biological Sciences > Biochemistry

Agriculture Biological Sciences > Sericulture
University of Mysore > PG Campuses > Manasagangotri, Mysore > Agriculture Biological Sciences > Sericulture
Divisions: Constituent Colleges > Yuvaraja's College Mysore > Sericulture
PG Campuses > Manasagangotri, Mysore > Biochemistry
Depositing User: Praveen Kumari B.L
Date Deposited: 18 Jun 2014 06:30
Last Modified: 07 Dec 2015 11:05

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