INS and obesity due to melanocortin 4 receptor deficiency: A difference in levels of obesity‐related parameters (blood pressure, fasting blood glucose, blood insulin, HOMA‐IR, C‐peptide, triglycerides, high‐density lipoprotein cholesterol, and low‐density lipoprotein cholesterol) could be observed between the groups, which reflected the down‐ and upregulation of studied molecules.