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Malaysian Journal of Medical Sciences
School of Medical Sciences, Universiti Sains Malaysia
ISSN: 1394-195X
Vol. 21, No. 4, 2014, pp. 12-17
Bioline Code: mj14045
Full paper language: English
Document type: Research Article
Document available free of charge

Malaysian Journal of Medical Sciences, Vol. 21, No. 4, 2014, pp. 12-17

 en Effect of C-peptide Alone or in Combination with Nicotinamide on Glucose and Insulin Levels in Streptozotocin–Nicotinamide-Induced Type 2 Diabetic Mice
AHANGARPOUR, Akram; AKBARI, Fatemeh Ramezani Ali & MOGHADAM, Hadi Fathi


Background: Both C-peptide and nicotinamide are known to reduce blood glucose in type 1 diabetes. In the present study, the effects of C-peptide alone or in combination with nicotinamide on glucose and insulin levels in streptozotocin-nicotinamide-induced type 2 diabetic mice.
Methods: The study used 70 adult male NMARI mice, weighing 25–35 g, divided into seven groups: control; type 1 diabetic; type 2 diabetic; type 2 diabetic + C-peptide; type 2 diabetic + nicotinamide; type 2 diabetic + nicotinamide and C-peptide; type 2 diabetic + glyburide. Type 2 diabetes was induced with ip injection of streptozotocin–nicotinamide. Twenty eight days after the onset of diabetes, treatment with C-peptide, nicotinamide, nicotinamide + C-peptide, or glyburide were initiated. Glucose and insulin levels were evaluated. One-way ANOVA and Least Significant Difference (LSD) tests were used to test for significance.
Results: Blood glucose significantly increased (P < 0.001) in all diabetic mice compared with control mice. Insulin resistance and blood glucose levels were significantly reduced (P < 0.05) in C-peptide and nicotinamide + C-peptide mice compared with type 2 diabetic mice.
Conclusions: The present study supports the anti-diabetic effects of C-peptide, nicotinamide + C-peptide, and suggests that one of the anti-diabetic mechanisms of these compounds is mediated through the reduction of insulin resistance.

C-peptide; nicotinamide; mice; insulin resistance; diabetes type 2

© Copyright 2014 - Malaysian Journal of Medical Sciences
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