| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
The purpose of this study was to evaluate the effect of irbesartan on the pathophysiology of cardiorenal syndrome. Subtotal nephrectomy (NTX) was performed in rats was using a two-step surgical procedure. Twenty-eight days after NTX, myocardial infarction (MI) was induced by ligation of the left anterior descending coronary artery. The animals were orally administered vehicle or irbesartan after NTX. The hearts were harvested 28 and 56 days after MI. MI with NTX model rats showed an impaired survival rate and enhanced cardiac inflammation in comparison to MI without NTX rats. Irbesartan tended to improve the survival rate, cardiac inflammation, left ventricular function in MI with NTX rats. Moreover, increases in protein expression levels related to oxidative stress and inflammation observed in the hearts of non-treated MI with NTX rats were attenuated by irbesartan treatment. We conclude that irbesartan has a cardioprotective effect after MI when renal dysfunction is present.
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