MTMR3 and metabolic myopathy: Interestingly, the mRNA expression level of AMPD (associated with symptoms of metabolic myopathy when it is deficient in skeletal muscle) (Morisaki et al., 1992) and the MTMR3 (plays an important role in maintaining muscle function) (Hnia et al., 2011), decreased in our study, indirectly suggesting a metabolic disturbance condition in FBFGs.