Title |
Cooked Common Beans (Phaseolus vulgaris) Protect Against β-cell Damage in Streptozotocin-Induced Diabetic Rats
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Published in |
Plant Foods for Human Nutrition, April 2013
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DOI | 10.1007/s11130-013-0353-1 |
Pubmed ID | |
Authors |
Diego Hernández-Saavedra, Magdalena Mendoza-Sánchez, Hebert L. Hernández-Montiel, Horacio S. Guzmán-Maldonado, Guadalupe F. Loarca-Piña, Luis M. Salgado, Rosalía Reynoso-Camacho |
Abstract |
Diabetes is a disease characterized by a hyperglycemic stage that leads to a chronic inflammatory state. We evaluated the in vivo effect of a diet supplemented with 25 % cooked black bean cultivar Negro 8025 (N8025) flour in streptozotocin-induced diabetic rats. The effect was assessed before (preventive-treatment) and after (treatment) the onset of diabetes. There is a significant decrease of total phenolic, tannins and anthocyanins content after cooking, and the concentration of most of the single phenols analyzed are only slightly decreased. The treatment group showed a significant reduction of glucose (22.8 %), triglycerides (21.9 %), total cholesterol (29.9 %) and LDL (56.1 %) that correlates with a protection of pancreatic ß-cells. The diet with N8025 flour before the induction of diabetes did not exert a protective effect (glucose levels are similar to the diabetic control) but they have low levels of total cholesterol (47.5 %) and LDL (56.1 %). The preventive-treatment group did not inhibit the increase of TNF-α and IL-1β, whereas the treatment group did, compared to the diabetic control. Therefore, N8025 bean supplementation can be recommended to control diabetes. |
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