Department of Cardiovascular Surgery;
Xiehe Hospital;
Tongji Medical College;
Huazhong University of Science and Technology;
Wuhan 430022 Department of Cardiovascular Surgery;
Xiehe Hospital;
Tongji Medical College;
Huazhong University of Science and Technology;
Wuhan 430022 Central Laboratory;
the First Clinical Hospital;
Shanxi Medical University;
Tai yuan 030001 Central Laboratory;
the First Clinical Hospital;
Shanxi Medical University;
Tai yuan 030001;
cardiopulmonary; bypass; apoptosis; caspase-3; bcl-2; family; proteins; oxidative; stress;