... example,coronary artery is relaxed but pulmonary artery is con-tracted under hypoxic condition. Pulmonary vasocon-striction and PASMC proliferation may contribute tohypoxic pulmonary hypertension. ... Province (YJSCX2009-223HLJ).Author details1Department of Pathophysiology, Qiqihar Medical University, Qiqihar 161006,PR China.2Department of Pathophysiology, Harbin Medical University,Harbin ... K+channel activity and inhibits apoptosis inpulmonary artery smooth muscle cells. Apoptosis 2009, 14:42-51.11. Wang LN, Wang C, Lin Y, Xi YH, Zhang WH, Zhao YJ, Li HZ, Tian Y, Lv YJ,Yang BF, Xu...