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Articles 1 - 2 of 2
Full-Text Articles in Medicine and Health Sciences
Ghrelin Receptor Deficiency Does Not Affect Diet-Induced Atherosclerosis In Low-Density Lipoprotein Receptor-Null Mice, Kirk M. Habegger, Erin Grant, Paul Thomas Pfluger, Diego Perez-Tilve, Alan Daugherty, Dennis Bruemmer, Matthias H. Tschöp, Susanna M. Hofmann
Ghrelin Receptor Deficiency Does Not Affect Diet-Induced Atherosclerosis In Low-Density Lipoprotein Receptor-Null Mice, Kirk M. Habegger, Erin Grant, Paul Thomas Pfluger, Diego Perez-Tilve, Alan Daugherty, Dennis Bruemmer, Matthias H. Tschöp, Susanna M. Hofmann
Saha Cardiovascular Research Center Faculty Publications
OBJECTIVE: Ghrelin, a stomach-derived, secreted peptide, and its receptor (growth hormone secretagogue receptor, GHSR) are known to modulate food intake and energy homeostasis. The ghrelin system is also expressed broadly in cardiovascular tissues. Since ghrelin has been associated with anti-inflammatory and anti-atherogenic properties, but is also well known to promote obesity and impair glucose metabolism, we investigated whether ghrelin has any impact on the development of atherosclerosis. The hypothesis that endogenous ghrelin signaling may be involved in atherosclerosis has not been tested previously.
METHODS AND RESULTS: We crossed ghrelin receptor knockout mice (GHSr-/-) into a low-density lipoprotein receptor-null …
Oxidative Stress Accumulates In Adipose Tissue During Aging And Inhibits Adipogenesis, Hannes M. Findeisen, Kevin J. Pearson, Florence Gizard, Yue Zhao, Hua Qing, Karrie L Jones, Dianne Cohn, Elizabeth B. Heywood, Rafael De Cabo, Dennis Bruemmer
Oxidative Stress Accumulates In Adipose Tissue During Aging And Inhibits Adipogenesis, Hannes M. Findeisen, Kevin J. Pearson, Florence Gizard, Yue Zhao, Hua Qing, Karrie L Jones, Dianne Cohn, Elizabeth B. Heywood, Rafael De Cabo, Dennis Bruemmer
Saha Cardiovascular Research Center Faculty Publications
Aging constitutes a major independent risk factor for the development of type 2 diabetes and is accompanied by insulin resistance and adipose tissue dysfunction. One of the most important factors implicitly linked to aging and age-related chronic diseases is the accumulation of oxidative stress. However, the effect of increased oxidative stress on adipose tissue biology remains elusive. In this study, we demonstrate that aging in mice results in a loss of fat mass and the accumulation of oxidative stress in adipose tissue. In vitro, increased oxidative stress through glutathione depletion inhibits preadipocyte differentiation. This inhibition of adipogenesis is at …