CD36 and obesity due to melanocortin 4 receptor deficiency: In addition, among non-diabetic Mexican American families, quantitative trait locus study showed a strong linkage of one metabolic syndrome related factor, HDL and triglycerides, to chromosome 7 (LOD score up to 3.2) [34]; however, other metabolic factors, including obesity and blood pressure, cannot be identified to linkage to chromosome 7, in which CD36 gene exists.