PRRT2 and hydrops fetalis: The pCa value for the half-maximal Ca2+-induced contraction (pCa50) was significantly higher in the HF group compared to the donor group; this increase was reversed upon treatment with GSH, as well as after treatment with PKA and/or PKC (Figure 1E,I,M), indicating a full recovery of myofilament function using the combination of anti-oxidant and kinases.