Several articles in this issue of the Journal cover a broad range of the new concepts of metabolic surgery,the mechanisms that leads to sustained metabolic syndrome remission,the new surgical procedures,and the perspective of surgeons and endocrinologists.
Obesity is a global health concern.Health surveys from 2005 revealed that the number of overweight and obese individuals in China were 200 million and 60 million,respectively[1].The rising prevalence of obesity is causing a major health burden in terms of morbidity and mortality[2].The complications of obesity and comorbidities,such as hypertension,coronary heart disease,type 2 diabetes mellitus (T2DM),hyperlipidemia,osteoarthrosis,and an increase in cancer risk,are placing growing demand on healthcare resources[3].The metabolic surgery has been widely recommended as the only effective management for obesity and related metabolic syndromes[4].The global total number of metabolic surgical procedures increased very quickly.In 2011,the global total number was 340,768,and surgeons was 6,705[5].