SLC9A2 and obesity due to melanocortin 4 receptor deficiency: For instance, a study performed on liver, VAT, and SAT biopsies, as well as peripheral blood collected from patients with obesity undergoing bariatric surgery with or without T2D, revealed correlated DMCs at ALOX12 (blood and liver), PSDM5 (blood and SAT), and SLC9A2 (blood and VAT), though these did not show expression changes.