This showed that 11 PCGs were enriched for the GO terms of ‘cardiac muscle tissue morphogenesis’, ‘cardiac muscle contraction’, ‘actin–myosin filament sliding’, ‘cardiac myofibril assembly’, ‘striated muscle thin filament’, and ‘arachidonic acid epoxygenase activity’, all of which were associated with occurrence and development of CH (Fig. 5A). This evidence concerns the gene CYP2J2 and cyclic hematopoiesis.