To further characterize the function of myostatin, in vivo metabolic assays were performed including euglycemic-hyperinsulinemic clamp studies, lipid oxidation and indirect calorimetry using wild type and myostatin null mice. We have also measured the effects of high fat and normal diets on insulin and glucose tolerance and the effects of exercise on myostatin mull mice as compared to wild type mice. To determine whether GDF11 and myostatin have redundant functions in skeletal muscle size control, we have analyzed muscle mass in mice carrying a deletion of GDF11 specifically in skeletal muscle in a myostatin null background.

Project Start
Project End
Budget Start
Budget End
Support Year
1
Fiscal Year
2007
Total Cost
$356,243
Indirect Cost
City
State
Country
United States
Zip Code
McPherron, Alexandra C (2010) METABOLIC FUNCTIONS OF MYOSTATIN AND GDF11. Immunol Endocr Metab Agents Med Chem 10:217-231
Guo, Tingqing; Jou, William; Chanturiya, Tatyana et al. (2009) Myostatin inhibition in muscle, but not adipose tissue, decreases fat mass and improves insulin sensitivity. PLoS One 4:e4937