Int. J. Mol. Sci. 2010, 11(5), 2056-2066; doi:10.3390/ijms11052056
Article

Antioxidant Protective Effect of Glibenclamide and Metformin in Combination with Honey in Pancreas of Streptozotocin-Induced Diabetic Rats

Omotayo Owomofoyon Erejuwa 1,* email, Siti Amrah Sulaiman 1 email, Mohd Suhaimi Abdul Wahab 1 email, Kuttulebbai Nainamohammed Salam Sirajudeen 2 email, Md Salzihan Md Salleh 3 email and Sunil Gurtu 4 email
1 Department of Pharmacology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia 2 Department of Chemical Pathology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia 3 Department of Pathology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia 4 School of Medicine and Health Sciences, Monash University Sunway Campus, Jalan Lagoon Selatan, 46150, Bandar Sunway, Selangor, Malaysia
* Author to whom correspondence should be addressed.
Received: 9 March 2010; in revised form: 24 April 2010 / Accepted: 26 April 2010 / Published: 5 May 2010
(This article belongs to the Section Bioactives and Nutraceuticals)
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Abstract: Hyperglycemia exerts toxic effects on the pancreatic β-cells. This study investigated the hypothesis that the common antidiabetic drugs glibenclamide and metformin, in combination with tualang honey, offer additional protection for the pancreas of streptozotocin (STZ)-induced diabetic rats against oxidative stress and damage. Diabetes was induced in male Sprague Dawley rats by a single dose of STZ (60 mg/kg; ip). Diabetic rats had significantly elevated levels of lipid peroxidation (TBARS), up-regulated activities of superoxide dismutase (SOD) and glutathione peroxidase (GPx) while catalase (CAT) activity was significantly reduced. Glibenclamide and metformin produced no significant effects on TBARS and antioxidant enzymes except GPx in diabetic rats. In contrast, the combination of glibenclamide, metformin and honey significantly up-regulated CAT activity and down-regulated GPx activity while TBARS levels were significantly reduced. These findings suggest that tualang honey potentiates the effect of glibenclamide and metformin to protect diabetic rat pancreas against oxidative stress and damage.
Keywords: diabetes mellitus; streptozotocin; oxidative stress; pancreas; tualang honey; glibenclamide; metformin

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MDPI and ACS Style

Erejuwa, O.O.; Sulaiman, S.A.; Wahab, M.S.A.; Sirajudeen, K.N.S.; Salleh, M.S.M.; Gurtu, S. Antioxidant Protective Effect of Glibenclamide and Metformin in Combination with Honey in Pancreas of Streptozotocin-Induced Diabetic Rats. Int. J. Mol. Sci. 2010, 11, 2056-2066.

AMA Style

Erejuwa OO, Sulaiman SA, Wahab MSA, Sirajudeen KNS, Salleh MSM, Gurtu S. Antioxidant Protective Effect of Glibenclamide and Metformin in Combination with Honey in Pancreas of Streptozotocin-Induced Diabetic Rats. International Journal of Molecular Sciences. 2010; 11(5):2056-2066.

Chicago/Turabian Style

Erejuwa, Omotayo Owomofoyon; Sulaiman, Siti Amrah; Wahab, Mohd Suhaimi Abdul; Sirajudeen, Kuttulebbai Nainamohammed Salam; Salleh, Md Salzihan Md; Gurtu, Sunil. 2010. "Antioxidant Protective Effect of Glibenclamide and Metformin in Combination with Honey in Pancreas of Streptozotocin-Induced Diabetic Rats." Int. J. Mol. Sci. 11, no. 5: 2056-2066.

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