Protective Effect of L-Arginine on Streptozotocin-Induced Diabetic Nephropathy in Albino Rat
Keywords:
Hyperglycemia, Kidney, L-arginine, Streptozotocin.Abstract
Objective: This study was designed to evaluate the protective role of L-arginine on body weight, and absolute and relative
kidney weight of Streptozotocin (STZ)-treated albino rats.
Methodology: This experimental study was conducted in the department of Anatomy, Basic Medical Sciences Institute (BMSI),
Jinnah Postgraduate Medical Centre (JPMC), Karachi, from February to March, 2010. In this study, 30 male albino rats were
divided into 3 groups, containing 10 animals each. Group-A was treated as control. Group-B animals received STZ in a dose
of 37 mg/kg intraperitoneally (I/P) only once at the start of experiment. Group-C received L-arginine orally in a dose of 0.3
mg/100 gram (G)body weight/day a week before STZ treatment.
Results: There was a highly significant increase in serum glucose level in group B animals when compared to the control group
A. In group C, the serum glucose levels returned near to control. The final body weight of group B animals decreased significantly
when compared to their initial weight, as well as when compared to control. The data also showed that there was a significant
decrease in absolute kidney weight whereas, significant increase in relative kidney weight in group B animals when compared
to group A animals respectively. There was significant restoration of body weight, and absolute and relative kidney weight in
group C animals receiving L-arginine along with STZ.
Conclusion: Our findings conclude that L-arginine as a nitric oxide donor and as an antioxidant, plays a significant role in
preserving renal morphology in streptozotocin-treated hyperglycemic rats.
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Copyright (c) 2017 Yasmeen Mahar, Humera Waqar, Sahal Salman
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