A high-resistance-starch rice diet reduces glycosylated hemoglobin levels and improves the antioxidant status in diabetic rats

Chun Kuang Shih, Shi Hong Chen, Wen C. Hou, Hsing-Hsien Cheng

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Diabetes mellitus is a common problem in developed countries. An improved postprandial hyperglycemic peak is one of the main therapeutic targets in diabetic patients. The Wistar rats with streptozotocin (STZ)-induced diabetes were divided into cornstarch (control) and Japonica rice groups, which were fed 640 g starch/kg diets for 4 weeks. The area (means ± SD) under the glucose curve of cornstarch was 173.8 ± 6.9 and Japonica rice diet was 154.3 ± 8.7 mmol × min/L, and the area (means ± SD) under the insulin curve of cornstarch was 12.9 ± 0.1 and Japonica rice diet was 12.0 ± 0.6 nmol × min/L. The glycosylated hemoglobin levels, serum fructosamine and cholesterol concentrations in diabetic rats fed the Japonica rice diet were significantly lower than the control group (P <0.05). The decreased malondialdehyde levels and increased superoxide dismutase activity and total radical-trapping antioxidant parameter in plasma were also found in rat fed the Japonica rice diet compared to the control. These results suggested that the diet containing high-resistance-starch Japonica rice might reduce glycosylated hemoglobin levels, serum cholesterol concentrations and raised the antioxidant status in the blood.

Original languageEnglish
Pages (from-to)842-847
Number of pages6
JournalFood Research International
Volume40
Issue number7
DOIs
Publication statusPublished - Aug 2007

Keywords

  • Antioxidant
  • Glycosylated hemoglobin
  • High-resistance-starch rice
  • Streptozotocin
  • Total radical-trapping antioxidant parameter

ASJC Scopus subject areas

  • Food Science

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