ACTA1 and myopathy: Experimental trials with myostatin in two mouse models of Acta1 nemaline myopathy did not yield stronger mice, but in the TgACTA1D286G mouse model the body size increased (Tinklenberg et al. 2018) and a similar trial in the Acta1H40Y mouse model led to both larger size and longer life-span (Tinklenberg et al. 2016).