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    Obes Surg. 2011 Nov;21(11):1758-65. doi: 10.1007/s11695-011-0457-3.

    ESR1, FTO, and UCP2 genes interact with bariatric surgery affecting weight loss and glycemic control in severely obese patients.

    Liou TH, Chen HH, Wang W, Wu SF, Lee YC, Yang WS, Lee WJ.

    Source

    Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.

    Erratum in

    • Obes Surg. 2012 Jan;22(1):194.

    Abstract

    BACKGROUND:

    Significant variability in weight loss and glycemic control has been observed in obese patients receiving bariatric surgery. Genetic factors may play a role in the different outcomes.

    METHODS:

    Five hundred and twenty severely obese patients with body mass index (BMI) ≥35 were recruited. Among them, 149 and 371 subjects received laparoscopic adjustable gastric banding (LAGB) and laparoscopic mini-gastric bypass (LMGB), respectively. All individuals were genotyped for five obesity-related single nucleotide polymorphisms on ESR1, FTO, PPARγ, and UCP2 genes to explore how these genes affect weight loss and glycemic control after bariatric surgery at the 6th month.

    RESULTS:

    Obese patients with risk genotypes on rs660339-UCP2 had greater decrease in BMI after LAGB compared to patients with non-risk genotypes (-7.5 vs. -6 U, p = 0.02). In contrast, after LMGB, obese patients with risk genotypes on either rs712221-ESR1 or rs9939609-FTO had significant decreases in BMI (risk vs. non-risk genotype, -12.5 vs. -10.0 U on rs712221, p = 0.02 and -12.1 vs. -10.6 U on rs9939609, p = 0.04) and a significant amelioration in HbA1c levels (p = 0.038 for rs712221 and p < 0.0001 for rs9939609). The synergic effect of ESR1 and FTO genes on HbA1c amelioration was greater (-1.54%, p for trend <0.001) than any of these genes alone in obese patients receiving LMGB.

    CONCLUSIONS:

    The genetic variants in the ESR, FTO, and UCP2 genes may be considered as a screening tool prior to bariatric surgery to help clinicians predict weight loss or glycemic control outcomes for severely obese patients.

    PMID:
    21720911
    [PubMed - indexed for MEDLINE]

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