Search results

Sort By:

Limit search:

Inhibitory effect of resveratrol on free radical generation in blood platelets

100%

Olas B., Żbikowska H. M., Wachowicz B., Krajewski T., Buczyński A., Magnuszewska A.

Acta Biochimica Polonica

1999

vol. 46

issue 4

961-966

Resveratrol (3,4',5-trihydroxystilbene), a compound found in many plants, has been shown to prevent coronary heart diseases and to exert a variety of antiinflammatory and anticancerogenic effects. It is effective in lowering the level of serum lipids and in inhibiting platelet aggregation. We evaluated the effect of trans-resveratrol on the production of free radicals in pig blood platelets and showed that resveratrol inhibited the production of different reactive oxygen species (O^·_2H^2O^2, singlet oxygen and organic radicals) measured by the luminol-dependent chemiluminescence in resting platelets (P < 0.05). Resveratrol inhibited also the generation of radicals in platelets activated by thrombin (P < 0.05). Treatment of platelets with resveratrol at concentrations of 6.25 and 12.5 μg/ml caused a statistically insignificant increase in the production of O^·-_2 in these cells, as measured by reduction of cytochrome c; however, at higher doses (25, 50 and 100 μg/ml) resveratrol distinctly reduced the generation of O^·-_2 in platelets (P < 0.05). We suggest that free radicals play an important role in the reduced reactivity of blood platelets induced by resveratrol.

Refine search results

1 Acta Biochimica Polonica

1 1999

1 Buczyński A.

1 Krajewski T.

1 Magnuszewska A.

1 Olas B.

1 Wachowicz B.

1 Żbikowska H. M.

Search results

Inhibitory effect of resveratrol on free radical generation in blood platelets