APOA4 and obesity due to melanocortin 4 receptor deficiency: The functional enrichment analysis showed that genes such as AGPAT2, AKR1B10, AKR1B15, LDH1A1,ALDH1A3, ALDH2, ALDH3A1, ALDH7A1, ANGPTL4, APOA1, APOA4, APOB, APOBEC1, APOC1, APOC3, APOE, APOL4, CYP27A1, CYP2B6, CYP2B7P, CYP2C18,CYP2C19, CYP2C9, CYP2J2, CYP2S1, CYP2U1-AS1, DGAT1, DGKG, FABP1, GK, LPA, MGAT3, MGAT3-AS1, MGLL, PCSK9, PLPP1, PLSCR4, SOAT2, SORT1,TKFC were found in obesity related pathways.