“…Today, the most frequently performed surgical interventions in the surgical treatment of obesity are the laparoscopic sleeve gastrectomy (LSG), laparoscopic greater curve plication of the stomach (LGCP), laparoscopic gastric bypass (RYGB) [2,9,[19][20][21][22][23][24]. Such operations are quite effective in a significant reduction in the body mass, a decrease in blood cholesterol and glucose levels and are associated with low rates of surgical complications [24][25][26][27][28]. At the same time, these surgical interventions change the levels of appetite-related hormones (ghrelin, leptin and adiponectin) due to various technical aspects, which play a great role in energy metabolism [29][30][31][32][33][34][35][36][37].…”