An expression quantitative trait loci (eQTL) laser capture microdissection (LCM) analysis of iT2DMts from phenotyped pancreatectomized patients (PPPs) identified that CYP4V2 is associated with the levels of glycated hemoglobin A1c (HbA1c) (35), which plays a key role in the management of diabetes. The gene discussed is CYP4V2; the disease is diabetes mellitus.