NNAT and obesity due to melanocortin 4 receptor deficiency: These include the imprinted genes VTRNA2-1 (associated with childhood obesity)125NAP1L5 (related to body fat percentage), and NNAT (linked to hyperglycaemia and obesity), and the non-imprinted genes LEPROT (fat mass), TIMD4 (total cholesterol measurement), ATF6B (phospholipid measurement), and SOAT2 (LDL, type 1 diabetes, cholesteryl ester measurement, familial lipoprotein lipase deficiency and chylomicron retention disease).