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Effect of tannic acid on myocardial lesions in diabetic rats and its mechanism

机译:单宁酸对糖尿病大鼠心肌病变的影响及其机制

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Poly(ADP-ribose)polymerase1 (PARP1) plays an important role in the onset and progeression of diabetic cardiomyopathy (DCM). The objective of this study was to investigate the effects of tannic acid[TA, poly (ADP-ribose) glycohydrolase (PARG) inhibitor] on myocardial lesion in STZ-induced diabetic rats and its mechanism. This study shows that expression of PARP1 and PARG protein in diabetic myocardial tissues was markedly (P<0.01) higher than in control rats, the expression levels of PARP1 and PARG were positively correlated (r=0.891, P<0.01). TA treatment for 12 weeks inhibited the expression of PARG, and at the same time, the expression of PARP1 was suppressed also. In addition, administration of TA significantly reduced the levels of plasma glucose, 8-OhdG and 3-NT, improved cardiac function. In summary, the role of tannic acid on the myocardium of diabetic rats has a protective effect.
机译:聚(ADP-核糖)聚合物化酶1(PARP1)在糖尿病心肌病(DCM)的发作和突发中起重要作用。本研究的目的是探讨单宁酸[Ta,聚(ADP-核糖)甘油(Parg)抑制剂]对STZ诱导的糖尿病大鼠心肌病变及其机制的影响。本研究表明,PARP1和PARG蛋白在糖尿病心肌组织中的表达明显高(P <0.01)高于对照大鼠,PARP1和PARG的表达水平正相关(R = 0.891,P <0.01)。 TA治疗12周抑制Parg的表达,同时,PARP1的表达也被抑制。此外,TA的给药显着降低了血浆葡萄糖,8-OHDG和3-NT的水平,改善的心脏功能。总之,单宁酸对糖尿病大鼠心肌的作用具有保护作用。

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