title: Aqueous Extract of Phyllanthus niruri Leaves Displays In Vitro Antioxidant Activity and Prevents the Elevation of Oxidative Stress in the Kidney of Streptozotocin-Induced Diabetic Male Rats.
abstract: P. niruri has been reported to possess antidiabetic and kidney protective effects. In the present study, the phytochemical constituents and in vitro antioxidant activity of P. niruri leaf aqueous extract were investigated together with its effect on oxidative stress and antioxidant enzymes levels in diabetic rat kidney. Results. Treatment of diabetic male rats with P. niruri leaf aqueous extract (200 and 400 mg/kg) for 28 consecutive days prevents the increase in the amount of lipid peroxidation (LPO) product, malondialdehyde (MDA), and the diminution of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) activity levels in the kidney of diabetic rats. The amount of LPO showed strong negative correlation with SOD, CAT, and GPx activity levels. P. niruri leaf aqueous extract exhibits in vitro antioxidant activity with IC50 slightly lower than ascorbic acid. Phytochemical screening of plant extract indicates the presence of polyphenols. Conclusion. P. niruri leaf extract protects the kidney from oxidative stress induced by diabetes.
authors.affiliation: Department of Physiology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Nelli
authors.initials: N
authors.lastname: Giribabu
authors.affiliation: Faculty of Agro Based Industry, University Malaysia Kelantan, Campus Jeli, Locked Bag No. 100, 17600 Jeli, Kelantan, Malaysia.
authors.forename: Pasupuleti Visweswara
authors.initials: PV
authors.lastname: Rao
authors.affiliation: Department of Biomedical Informatics, Division of Cancer Biology and System Biology, Asia University, Lioufeng Road, Wufeng, Taichung 41354, Taiwan.
authors.forename: Korla Praveen
authors.initials: KP
authors.lastname: Kumar
authors.affiliation: Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
authors.forename: Sekaran
authors.initials: S
authors.lastname: Muniandy
authors.affiliation: Department of Zoology, Sri Venkateswara University, Tirupati, Andhra Pradesh 517502, India.
authors.forename: Somesula
authors.initials: S
authors.lastname: Swapna Rekha
authors.affiliation: Department of Physiology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Naguib
authors.initials: N
authors.lastname: Salleh