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Taxifolin prevents diabetic cardiomyopathy in vivo and in vitro by inhibition of oxidative stress and cell apoptosis.
- Source :
-
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association [Food Chem Toxicol] 2014 Jan; Vol. 63, pp. 221-32. Date of Electronic Publication: 2013 Nov 20. - Publication Year :
- 2014
-
Abstract
- Diabetic cardiomyopathy has been increasingly recognized as an important cause of heart failure in diabetic patients. Excessive oxidative stress has been suggested to play a critical role in the development of diabetic cardiomyopathy. The objective of this study was to investigate the potential protective effects and mechanisms of taxifolin on cardiac function of streptozotocin-induced diabetic mice and on hyperglycemia-induced apoptosis of H9c2 cardiac myoblasts. In vivo study revealed that taxifolin improved diastolic dysfunction, ameliorated myocardium structure abnormality, inhibited myocyte apoptosis and enhanced endogenous antioxidant enzymes activities. Interestingly, taxifolin reduced angiotensin II level in myocardium, inhibited NADPH oxidase activity, and increased JAK/STAT3 activation. In vitro investigation demonstrated that taxifolin inhibited 33 mM glucoseinduced H9c2 cells apoptosis by decreasing intracellular ROS level. It also inhibited caspase-3 and caspase-9 activation, restored mitochondrial membrane potential, and regulated the expression of proteins related to the intrinsic pathway of apoptosis, thus inhibiting the release of cytochrome c from mitochondria into the cytoplasm. In conclusion, taxifolin exerted cardioprotective effects against diabetic cardiomyopathy by inhibiting oxidative stress and cardiac myocyte apoptosis and might be a potential agent in the treatment of diabetic cardiomyopathy.<br /> (Copyright © 2013 Elsevier Ltd. All rights reserved.)
- Subjects :
- Angiotensin II blood
Animals
Caspases metabolism
Cell Line
Diabetes Mellitus, Experimental complications
Enzyme-Linked Immunosorbent Assay
In Situ Nick-End Labeling
In Vitro Techniques
Male
Mice
Mice, Inbred C57BL
NADPH Oxidases metabolism
Quercetin pharmacology
Rats
Reactive Oxygen Species metabolism
Streptozocin
Apoptosis drug effects
Diabetic Cardiomyopathies prevention & control
Oxidative Stress drug effects
Quercetin analogs & derivatives
Subjects
Details
- Language :
- English
- ISSN :
- 1873-6351
- Volume :
- 63
- Database :
- MEDLINE
- Journal :
- Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association
- Publication Type :
- Academic Journal
- Accession number :
- 24269735
- Full Text :
- https://doi.org/10.1016/j.fct.2013.11.013