PGM1 and myopathy: An example of this approach is the combined therapy of uridine prodrug and sugars (WO2016028894A1), an approach tested in three patients with a different CDG (GNE-myopathy, PGM1-CDG, and DPAGT1-CDG); the coadministration of uridine triacetate and the specific sugar caused increased intracellular concentrations of the UDP-sugar.