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Diabetes Metab J. 2013 Apr;37(2):140-8. doi: 10.4093/dmj.2013.37.2.140. Epub 2013 Apr 16.

Effects of high performance inulin supplementation on glycemic control and antioxidant status in women with type 2 diabetes.

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1
Department of Biochemistry and Diet Therapy, Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.

Abstract

BACKGROUND:

The purpose of this study was to evaluate the effects of high performance inulin supplementation on blood glycemic control and antioxidant status in women with type 2 diabetes.

METHODS:

In a randomized, triple-blind controlled trial, 49 females (fiber intake <30 g/day, 25<body mass index <35 kg/m(2)) with type 2 diabetes were recruited from the Iran Diabetes Society and from endocrinology and metabolism clinics associated with the Tabriz University of Medical Science. The participants were divided into one of two groups in which the participants either received 10 g/day of inulin (intervention, n=24) or maltodextrin (control, n=25) for 2 months. Fasting blood samples were obtained and both glycemic control and antioxidant status were determined at baseline and at the end of the study.

RESULTS:

At the end of the study period, there were significant decreases in fasting plasma glucose (8.47%), glycosylated hemoglobin (10.43%), and malondialdehyde (37.21%) levels and significant increases in total antioxidant capacity (18.82%) and superoxide dismutase activity (4.36%) in the inulin group when compared to the maltodextrin group (P<0.05). Changes in fasting insulin, homeostasis model assessment of insulin resistance, and catalase activity were not significant in the inulin group when compared with the maltodextrin group. Glutathione peroxidase activity remained unchanged in both groups.

CONCLUSION:

Inulin supplementation may improve some glycemic and antioxidant indices and decrease malondialdehyde levels in women with type 2 diabetes. Further investigations are needed in order to confirm the positive effects that inulin may have on the glycemic and antioxidant indices of patients with type 2 diabetes.

KEYWORDS:

Antioxidants; Diabetes mellitus, type 2; Insulin resistance; Inulin; Malondialdehyde

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