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Polish Society of
Endocrinology
Endocrine implications of obesity and bariatric surgery
19.10.2018
Michał Dyaczyński, Colin Guy Scanes, Helena Koziec, Helena Koziec, Krystyna Pierzchała-Koziec
Abstract
Introduction:
Obesity is a highly prevalent disease in the world associated with the disorders of endocrine system. Recently, it may be concluded that the only effective treatment of obesity remains bariatric surgery. The aim of the review was to compare the concepts of appetite hormonal regulation, reasons of obesity development and bariatric procedures published over the last decade. Material and methods: The reviewed publications had been chosen on the base on: 1. reasons and endocrine consequences of obesity; 2. development of surgery methods from the first bariatric to present and future less aggressive procedures; 3. impact of surgery on the endocrine status of patient. Results: The most serious endocrine disturbances during obesity are dysfunctions of hypothalamic circuits responsible for appetite regulation, insulin resistance, changes in hormones activity and abnormal activity of adipocytes hormones. The currently recommended bariatric surgeries are Roux-en-Y gastric bypass, sleeve gastrectomy and adjustable gastric banding. Bariatric surgical procedures, particularly combination of restrictive and malabsorptive, decrease the body weight and eliminate several but not all components of metabolic syndrome.
Conclusions:
1.Hunger and satiety are mediated by an interplay of nervous and endocrine signals. 2. Healthy adipose tissue secretion of adipokines is coordinated in an anti-inflammatory, insulin-sensitizing and cardioprotective pattern. However, with increasing fat mass this secretion pattern is changed into a proinflammatory, insulin resistant, atherogenic and fatal systemic environment . 3. Bariatric surgery is not a solution of the obesity problem for everyone. 4. Long term postsurgical observations of the hormonal profile changes are necessary and should be obligatory.
Keywords: obesity; endocrine dysfunctions; bariatric surgery; gastrointestinal hormones