NR1H4 and hydrops fetalis: However, HF-fed Nrf2−/− livers exhibited significant increases in mRNAs for Srebf1, Srebf2, Mlxipl, and PPARγ, with no change in mRNA for LXRα and reduced levels of mRNAs for Shp, LXRβ, and FXR (Fig. 4A).