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Metabolite Changes One Year Following Gastric Bypass Surgery. Weight loss surgery produced a significant rise in fasting plasma Gln (Panel A) and decrease in Glu (Panel B). Plasma Glu/Gln ratio (Panel C), branched chain amino acids (Panels D and E) all significantly decreased in obese patients following bariatric surgery, while glycine (Panel F) increased post-surgery. All changes depicted are significant by ANCOVA at p<0.05.
