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1.
Chinese Pharmacological Bulletin ; (12): 1375-1378,1379, 2015.
Article in Chinese | WPRIM | ID: wpr-602479

ABSTRACT

Aim To investigate the effect of simvastatin ( Sim ) on endogenous antioxidant system after acute myocardial infarction ( AMI ) and its potential mecha-nisms. Methods The acute myocardial infarction ( AMI ) rat models were made by ligation left anterior descending of coronary artery. Then the successful models were randomly divided into myocardial infarc-tion group ( MI group) and simvastatin group ( Sim,20 mg·kg-1·d-1), another group without ligation left anterior descending of coronary artery served as sham group(Sham group). The Sim group was administered simvastatin by gavage for 7 days. MI group and Sham group received saline. Hemodynamic parameters, lipid levels, troponinI ( c-TnI ) and lactate dehydrogenase ( LDH) concentrations were examined after 7days, and the levels of superoxide dismutase ( SOD) and glutathi-one peroxidase ( GP) of myocardial antioxidant system were detected by ELISA. The expression of cardiac p-Akt and p-eNOS protein were detected by Western blot. Results Acute myocardial infarction significant-ly lowered cardiac hemodynamic parameters, increased serum c-TnI and LDH levels, lowered levels of SOD and GP, and lowered the expression of p-Akt and p-eNOS protein. However, Sim could effectively prevent the deterioration of cardiac function, reduce serum c-TnI and LDH levels, increase levels of SOD and GP, and increase p-Akt and p-eNOS protein expression. Conclusion Early using Sim can effectively improve heart function after acute myocardial infarction, acti-vate myocardial antioxidant system,and reduce myocar-dial necrosis, which may be related to increasing the expression of p-Akt and p-eNOS.

2.
Article in Chinese | WPRIM | ID: wpr-441387

ABSTRACT

Compared to the mature monitoring and reporting system of ADRs in developed countries such as the USA and EU,medical institutions in China have played too much a role.Instead,local primary monitoring and reporting system of ADRs should expand their scope of monitoring and reporting,as drug makers,chain drugstores and retailers should develop an effective ADR monitor/report system as well.At present,such a primary system is plagued by insufficient budget and staff,imbalanced urban/rural layout and defective statements.Recommended measures include enhanced surveillance for drug makers,chain drugstores and retailers,for higher reporting ratio of ADRs at primary level; greater publicity and better monitoring and penalty mechanism; better platform for various organizations.

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