Gastric Bypass and Sleeve Gastrectomy: the Same Impact on IL-6 and TNF-α. Prospective Clinical Trial
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Background Due to the association between the quantity of adipose tissue and concentrations of interleukin-6 (IL-6) and tumor necrosis factor (TNF-α), this work aimed to assess the effects of Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) procedures on serum IL-6 and TNF-α concentrations. Methods This study evaluated serum IL-6 and TNF-α levels, as well as routine anthropometric and biochemical values, before and 1?year post-bariatric surgery. Fifty percent of patients (n--4) underwent RYGB, and 50?% (n--4) underwent SG. Prior to bariatric surgery, IL-6 and TNF-α mRNA expression levels in subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) were investigated in obese women. Results There was a significant reduction (p-lt;-.05) in all anthropometric and routine biochemical measurements in patients in the RYGB and SG groups 1?year post-surgery. The serum concentrations of IL-6 and TNF-α were reduced following surgery in both groups (p-lt;-.05). No differences in the relative expression levels of IL-6 and TNF-α were found between SAT and VAT prior to bariatric surgery. Conclusions RYGB and SG procedures demonstrated a similar impact on adipokine levels in women 1?year post-surgery. Both techniques may improve the course of chronic diseases and the state of inflammation associated with obesity.

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