
Keywords: ActRIIB, activin receptor IIB; DCN, decorin; ECM, extracellular matrix; ED50, median effective dose; FAM, carboxyfluorescein; GDF-8, growth differentiation factor 8; GDF-11, growth differentiation factor 11; MTT, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenylt