ABCC8 and cyclic hematopoiesis: At the time of the study by Stevens et al., there were nine genes (ABCC8, GCK, GLUD, HADH, HNF1A, HNF4A, KCNJ11, SLC16A1, and UCP2) known as CH disease-causing that encompassed different molecular functions including transcription factors, metabolic enzymes, and solute transporters [94].