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Abstract Title:

Effect of ethanolic extracts of Ananas comosus L. leaves on insulin sensitivity in rats and HepG2.

Abstract Source:

Comp Biochem Physiol C Toxicol Pharmacol. 2006 Aug;143(4):429-35. Epub 2006 Apr 28. PMID: 16753349

Abstract Author(s):

Weidong Xie, Wei Wang, Hui Su, Dongming Xing, Yang Pan, Lijun Du

Article Affiliation:

Life Sciences Division, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.

Abstract:

Ethanolic extracts of Ananas comosus L. leaves (AC) enriched with phenols have hypoglycemic activity in diabetic rats. Here, we investigated the effect of AC on insulin sensitivity in rats and HepG2. In high-fat diet-fed and low-dose streptozotozin-treated diabetic Wistar rats subjected to challenge with exogenous human insulin, AC treatment at an oral dose of 0.40 g/kg could significantly improve sensitivity to exogenous insulin. After a sub-acute treatment, AC also could inhibit the development of insulin resistance in high-fat diet-fed and low-dose streptozotozin-treated diabetic rats following the test of loss of tolbutamide-induced blood glucose lowering action. For intravenous insulin/glucose infusion test, high-fat diet-fed and low-dose alloxan-treated Wistar rats were associated with insulin resistance, which was improved after AC or fenofibrate treatment. AC application inhibited the development of insulin resistance in HepG2 cells. The above animal models were well developed to simulate type 2 diabetes. Taken together, our results suggest that AC may improve insulin sensitivity in type 2 diabetes and could be developed into a new potential natural product for handling of insulin resistance in diabetic patients.

Study Type : Animal Study

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Sayer Ji
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