Department of Physiology;
Universiti Kebangsaan Malaysia Medical Centre;
Jalan Raja Muda Aziz;
50300 Kuala Lumpur;
Malaysia;
Department of Human Anatomy;
Division of Physiology;
Faculty of Medicine and Health Sciences;
Universiti Putra Malaysia;
Forest Research Institute of Malaysia;
Department of Obstetrics and Gynecology;
Universiti Kebangsaan Malaysia Medical Centre;
Piper sarmentosum; Human umbilical vein endothelial cells(HUVECs); Malondialdehyde; Oxidative stress; Antioxidant enzymes;