• Marcella Rodrigues Guedes, Ricardo José Fittipaldi-Fernandez, Cristina Fajardo Diestel, and Klein Márcia Regina Simas Torres MRST Department of Applied Nutrition, Nutrition Institute, Rio de Janeiro State University, 12th floor/524, São Francisco Xavier Street, .
• Division of Gastroenterology EndogastroRio Clinic, 43/1101, Siqueira Campos Street, Rio de Janeiro, RJ, 22031-901, Brazil.
• Obes Surg. 2019 Aug 1; 29 (8): 2600-2608.

BackgroundObesity is accompanied by adipose tissue remodeling characterized by increased production of tumor necrosis factor-alpha (TNF-α), interleukin (IL)-6, leptin and resistin and reduced secretion of adiponectin, which favors inflammation, metabolic disorders, and cardiovascular diseases. Although intragastric balloon (IGB) can be considered safe and effective for weight loss, its effect on serum levels of these biomarkers has been evaluated only in a few studies, while no previous study evaluated its effect on circulating levels of resistin, TNF-α, and IL-6. The aim of this study was to evaluate the changes in serum levels of metabolic and inflammatory biomarkers in obese patients submitted to IGB treatment.MethodsA prospective observational study involving 42 patients with obesity using IGB for 6 months. The patients were evaluated, on the day of insertion and withdrawal or adjustment of IGB, for the following: anthropometric measures and serum levels of adiponectin, leptin, resistin, TNF-α, IL-6, high-sensitivity C-reactive protein (hs-CRP), glucose, insulin, uric acid, triglycerides, and total cholesterol and fractions.ResultsThe body mass index decreased from 35.15 ± 0.41 to 29.50 ± 0.54 kg/m2. There was a reduction (p < 0.05) in leptin, hs-CRP, glucose, insulin, HOMA-IR, and triglycerides, while the adiponectin/leptin ratio increased (p < 0.05). Moreover, weight loss presented (1) a positive association with the decrease in leptin, hs-CRP, glucose, insulin, HOMA-IR, uric acid, and total cholesterol and (2) a negative association with the reduction in adiponectin/leptin ratio.ConclusionsThe present study suggests that 6 months of IGB treatment in obese individuals reduce serum leptin and hs-CRP and improves insulin resistance and lipid profile which may decrease cardiovascular risk.

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