https://pmc.ncbi.nlm.nih.gov/articles/PMC2944638/
Administration of a soluble activin type IIB receptor promotes skeletal muscle growth independent...
This is the first report that inhibition of negative regulators of skeletal muscle by a soluble form of activin type IIB receptor (ACE-031) increases muscle...
activin type iib receptor
https://pmc.ncbi.nlm.nih.gov/articles/PMC2783781/
The effects of a soluble activin type IIB receptor on obesity and insulin sensitivity - PMC
Myostatin, also known as Growth and Differentiation Factor 8, is a secreted protein that inhibits muscle growth. Disruption of myostatin signaling increases...