Medicina
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It is well known that cardiomyocyte apoptosis contributes to ischemic heart damage. There is also increasing evidence that the polyphenolic compounds of natural origin, such as anthocyanins, may attenuate ischemia/reperfusion injury though the mechanisms of such protection are not clear. Following our previous studies showing the effect of certain anthocyanins on cytochrome c redox state, mitochondrial functions, and ischemia-induced caspase activation in the heart, here we investigated whether these anthocyanins can rescue cardiac cells from death by the mechanism involving the reduction of cytosolic cytochrome c. ⋯ Cy3G protected the rat heart from ischemia/reperfusion-induced apoptosis and necrosis; meanwhile, Pg3G did not exert any protective effect. The protective effect of Cy3G may be related due to its high capacity to reduce cytosolic cytochrome c.
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BACKGROUND AND OBJECTIVE. In this study, we attempted to determine whether the C/T polymorphism of the ET-1 gene was significantly associated with changes in several clinical characteristics after the 16-week combined exercise program in overweight middle-aged women. MATERIAL AND METHODS. ⋯ In addition, this genetic variation showed a significant association with changes in muscular strength of the participants after the 16-week combined exercise program (P<0.05). CONCLUSIONS. Our data suggest that the C/T substitution on intron 4 of the ET-1 gene may be a useful genetic marker influencing muscular strength through a gene-exercise interaction and is associated with an interindividual difference of cardiovascular risk factors and parameters of physical fitness.