Losartan's effects on the protein expression of the kidney of spontaneous hypertension rat / 中国应用生理学杂志

ABSTRACT

<p><b>AIM</b>To analyse the alterations of protein expression in the kidney of spontaneously hypertensive rat with losartan.</p><p><b>METHODS</b>The proteins of the kidney were isolated by two-dimensional gel electrophoresis. The protein spots with significant changes were selected for further identification by LC-MS/MS.</p><p><b>RESULTS</b>The number of average protein spots of two groups was 570 +/- 48 and 686 +/- 30 respectively. Compared with the SHR, 13 spots had changed significantly after treated with losartan. There were 5 protein spots detected only in SHR group, while 4 up-regulated and 4 down-regulated protein spots were detected in SHR-L group. These differentially expressed proteins were detected by mass spectrometry. 7 spots were identified. There were Heat shock protein (Hsp), Tubulin alpha-1 chain, Transthyretin precursor, Liver regeneration-related protein LRRG03, Ezrin-radixin-moesin binding phosphoprotein 50, Phosphoglycerate kinase 1 and Anionic trypsin I precursor.</p><p><b>CONCLUSION</b>The different protein spots expression may play important roles in Losartan's effective protection to hypertension rats renal tissue.</p>