CJCP     2009 11 (06):  476-480    ISSN: 1008-8830  CN: 43-1301/R Effects of clearance of superoxide anion by catechin on the expression of NO and eNOS and apoptosis in endothelial progenitor cells induced by angiotensin II WU Li-Yuan, DANG Xi-Qiang, HE Xiao-Jie, YI Zhu-Wen Department of Pediatrics, Second Xiangya Hospital, Central South University, Changsha 410011, China. Received: null  Revised: null  Online: null Supporting info