期刊
ARCHIVES OF PHYSIOLOGY AND BIOCHEMISTRY
卷 128, 期 1, 页码 59-68出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/13813455.2019.1662453
关键词
Carnosine; glutathione; hepatic; leu-gly; peptide
资金
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran [58526]
This study investigates the effects of small peptides, including di- and tri-peptides containing proline, glycine, and leucine, on enzymes and histopathology of the liver in mice with diabetes. The results suggest that the dipeptides Ala-His, Leu-Gly, and Pro-Gly-Pro have stronger protective effects against diabetes-induced changes in liver enzymes and histology.
Context: Small peptides as multifunctional biomolecules can prevent the metabolic disorders such as diabetes. Objective: The purpose of this study was to investigate the effects of small peptides on the enzymes and histopathology of the liver in mice exposed to diabetes. Methods: Di- and tri-peptides containing proline, glycine, and leucine were produced by solid phase peptide synthesis (SPPS) protocol. The effects of produced peptides as well as carnosine (Ala-His) and glutathione (Glu-Cys-Gly) were evaluated on hepatic enzymes activity by enzymatic method and histopathology of liver using hematoxylin and eosin and TUNEL staining to assess histologic changes and apoptosis in diabetes induced by multiple low doses of streptozotocin (MLDS). Results: The Ala-His, Leu-Gly and Pro-Gly-Pro dipeptides had the higher protective effects against the effects of diabetes on the enzymes and histologic changes of liver in mice. Conclusion: These peptides can be raised as considerable pharmaceutical preventive agent against diabetes development.
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