Fig. 4From: Myostatin as a mediator of sarcopenia versus homeostatic regulator of muscle mass: insights using a new mass spectrometry-based assayCirculating myostatin and propeptide levels in women compared to men. Box plots (25–75 percentile) and whiskers (Tukey method) showing comparisons of a myostatin, b myostatin relative to total body lean mass (TBLM), c propeptide, and d propeptide relative to TBLM between younger women (YW) and younger men (YM) (top panel), older women (OW) and older men (OM) (middle panel), and sarcopenic OW (SOW) and sarcopenic OM (SOM) (bottom panel). * and *** denote p < 0.05 and 0.001, respectivelyBack to article page