COX17 and hydrops fetalis: Gene Ontology (GO) analysis showed that module 1 genes were enriched in positive regulation of cell death (Btg2, Cav2, and Dusp1) and oxidative phosphorylation (Atp5c1, Cox17, and Ndufa1) (Fig. 2D; Table S3), consistent with the previous discovery that the inhibition of mitochondrial oxidative phosphorylation stimulated the anagen phase and accelerated HF regeneration (Kondo et al., 2002).