A) Representative western blots comparing degradation of MGMT, NDRG1, TFAM, LONP1, YTHDF1 and PGC1 proteins between control and GHR−/− fibroblasts at different time points during cycloheximide treatments. Extracts were normalized to actin. B) Bar graphs represent the mean ± S.E.M. of the half-life for each protein relative to actin from fibroblasts of 4 GHR−/− mice per group (2 females) and 5 DW mice per group (2 females). Each symbol represents a different mouse, and (*) indicates statistical significance (p<0.05) relative to controls.