Back to Search
Start Over
Isocitrate dehydrogenase 2 protects mice from high-fat diet-induced metabolic stress by limiting oxidative damage to the mitochondria from brown adipose tissue
- Source :
- Experimental and Molecular Medicine, Vol 52, Iss 2, Pp 238-252 (2020)
- Publication Year :
- 2020
- Publisher :
- Nature Publishing Group, 2020.
-
Abstract
- Obesity: Possible protective enzyme identified An enzyme that limits the build-up of reactive oxygen species (ROS) in fat cells protects mice against metabolic stress during a high-fat diet. Calorie overload leads to high levels of damaging ROS in the mitochondria of brown fat cells. This can disrupt processes that regulate energy expenditure and glucose metabolism. A team led by Seung-Soon Im at Keimyung University, Daegu, South Korea, and Timothy F. Osborne at Johns Hopkins University, St. Petersburg, USA, examined the role of an enzyme called isocitrate dehydrogenase 2 (IDH2), which is known to regulate the build-up of mitochondrial ROS. In mice fed a high-fat diet, those without IDH2 experienced accelerated weight gain, triggered by increased ROS levels and decreased mitochondrial function. A dose of an antioxidant in the diet reduced this effect, suggesting that patients with obesity may benefit from antioxidant supplements.
- Subjects :
- Medicine
Biochemistry
QD415-436
Subjects
Details
- Language :
- English
- ISSN :
- 12263613 and 20926413
- Volume :
- 52
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- Experimental and Molecular Medicine
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.106facf445dc4fc98d23964a4547c840
- Document Type :
- article
- Full Text :
- https://doi.org/10.1038/s12276-020-0379-z