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Issue 3, 2018
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Antidiabetic effects and erythrocyte stabilization by red cabbage extract in streptozotocin-treated rats

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Abstract

The protective effect of red cabbage extract (RCE) was evaluated in rats with streptozotocin-induced diabetes, assessing a probable role of this extract in the prevention of erythrocyte impairments associated with a high risk of vascular complications in diabetes. RCE was analyzed by ultrahigh performance liquid chromatography and mass spectrometry, and 11 anthocyanins, 3 hydroxybenzoic acids and 9 hydroxycinnamic acids were identified. Type 1 diabetes was induced by streptozotocin (60 mg kg−1) in Wistar male rats (n = 8 per group). After 7 days of acclimatization, streptozotocin-treated rats were given RCE (800 mg kg−1) or vehicle by intragastric administration for 4 weeks. The RCE treatment lowered blood glucose, and glycated and fetal hemoglobin concentrations and improved glucose tolerance as well as considerably raised serum insulin, proinsulin and C-peptide levels in streptozotocin-treated rats. Simultaneously, RCE improved pancreatic islet morphology, increasing the amount of pancreatic β-cells in diabetic animals. The RCE administration prevented anemia in rats with streptozotocin-induced diabetes, enhanced erythrocyte resistance to acid hemolysis, and normalized reticulocyte production as well as sialic acid content in erythrocyte membranes. The enhanced lectin-induced erythrocyte aggregation in diabetic rats was significantly lowered after the RCE treatment. RCE demonstrated a significant antioxidant effect, decreasing MDA and protein carbonyl contents and increasing catalase and glutathione peroxidase activities in erythrocytes. These results indicate that RCE can be considered as a promising candidate for use as a drug or a food supplement to alleviate diabetes and its vascular complications.

Graphical abstract: Antidiabetic effects and erythrocyte stabilization by red cabbage extract in streptozotocin-treated rats

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Article information


Submitted
17 Nov 2017
Accepted
11 Feb 2018
First published
08 Mar 2018

Food Funct., 2018,9, 1850-1863
Article type
Paper

Antidiabetic effects and erythrocyte stabilization by red cabbage extract in streptozotocin-treated rats

V. Buko, I. Zavodnik, O. Kanuka, E. Belonovskaya, E. Naruta, O. Lukivskaya, S. Kirko, G. Budryn, D. Żyżelewicz, J. Oracz and N. Sybirna, Food Funct., 2018, 9, 1850
DOI: 10.1039/C7FO01823A

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