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Article Publish Status: FREE
Abstract Title:

Antioxidant and Anti-Diabetic Activities of Polysaccharides from Guava Leaves.

Abstract Source:

Molecules. 2019 Apr 5 ;24(7). Epub 2019 Apr 5. PMID: 30959759

Abstract Author(s):

You Luo, Bin Peng, Weiqian Wei, Xiaofei Tian, Zhenqiang Wu

Article Affiliation:

You Luo

Abstract:

Guava (L., Myrtaceae) leaves have been used as a folk herbal tea to treat diabetes for a long time in Asia and North America. In this study, we isolated polysaccharides from guava leaves (GLP), and evaluated its antioxidant activity in vitro and anti-diabetic effects on diabetic mice induced by streptozotocin combined with high-fat diet. The results indicated that GLP exhibited good DPPH, OH, and ABTS free-radical scavenging abilities, and significantly lowered fasting blood sugar, total cholesterol, total triglycerides, glycated serum protein, creatinine, and malonaldehyde. Meanwhile, it significantly increased the total antioxidant activity and superoxide dismutase (SOD) enzyme activity in diabetic mice, as well as ameliorated the damage of liver, kidney, and pancreas. Thus, polysaccharides from guava leaves could be explored as a potential antioxidant or anti-diabetic agents for functional foods or complementary medicine.

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Sayer Ji
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