47 Mosavat Mosavat M M Mirsanjari Mirsanjari M M Arabiat Arabiat D D Smyth Smyth A A Whitehead Whitehead L. L. The Role of Sleep Curtailment on Leptin Levels in Obesity and Diabetes Mellitus The Role of Sleep Curtailment on Leptin Levels in Obesity and Diabetes Mellitus Obes Facts Obes Facts 2021 2021 14 14 2 2 214 214 221 221 10.1159/000514095 10.1159/000514095 33756469 33756469. Here, LEP is linked to obesity due to melanocortin 4 receptor deficiency.