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Abstract Title:

Red raspberry (Rubus idaeus L.) intake decreases oxidative stress in obese diabetic (db/db) mice.

Abstract Source:

Food Chem. 2017 Jul 15 ;227:305-314. Epub 2017 Jan 18. PMID: 28274436

Abstract Author(s):

Giuliana D Noratto, Boon P Chew, Liezl M Atienza

Article Affiliation:

Giuliana D Noratto

Abstract:

Red raspberry fruit intake was investigated on obese diabetic (db/db) mice for 8weeks. Animals fed isocaloric diets (5.3% freeze-dried raspberry, or control) were assessed for obesity-diabetes-disease risk biomarkers. Results showed that raspberry intake improved antioxidant status and lessened plasma interleukin (IL)-6 (0.3-fold of control, p<0.1); most likely through enhancing glutathione peroxidase (GPx) activity in liver (4.3-fold of control), and in blood (2.1-fold of control). Other disease-risk biomarkers were similar between groups (p>0.05). Plasma levels of total cholesterol (T-CHL), low density lipoprotein-cholesterol (LDL-CHL), and resistin were higher in the raspberry group. Overall, the enhanced detoxifying cell defenses exerted by raspberry intake might be due to its polyphenolics and fibre. This study demonstrates in vivo that raspberry intake, at a dose that can be achieved by human consumption, might protect against diabetes-induced oxidative stress.

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