Associations of markers in 11 obesity candidate genes with maximal weight loss and weight regain in the SOS bariatric surgery cases

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Sarzynski, MA (author)

Associations of markers in 11 obesity candidate genes with maximal weight loss and weight regain in the SOS bariatric surgery cases

Article/chapterEnglish2011

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2011

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LIBRIS-ID:oai:gup.ub.gu.se/161868
https://gup.ub.gu.se/publication/161868URI

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Language:English

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Abstract: Purpose: To test whether DNA sequence variation in 11 obesity genes is associated with maximum weight loss and weight regain over 6 years of follow-up in bariatric surgery patients of the Swedish obese subjects (SOS) intervention study. Methods: A total of 1443 subjects were available for analysis (vertical banded gastroplasty: n = 966, banding: n = 293 and gastric bypass: n 184). Single-nucleotide polymorphisms (SNPs) from the following 11 genes were included: ADIPOQ, BDNF, FTO, GNB3, LEP, LEPR, MC4R, NR3C1, PPARG, PPARGC1A and TNF. General linear models were used to analyze associations between the SNPs and maximum weight loss and weight regain. Results: The average maximum weight loss was 33.7 kg (s.d. 13.3; min -95.5 kg, max + 2.0 kg), which was reached 2.2 (s.d. 1.6) years after the surgery. Subjects regained approximately 12 kg (range 0.0-51.4 kg) by year 6. After correcting for multiple testing, the FTO SNP rs16945088 remained significantly associated with maximum weight loss (P = 0.0002), as minor allele carriers lost approximately 3 kg less compared with common allele homozygotes. This association was particularly evident in the banding surgery patients (P < 0.0001), whereas no significant association was found in the gastric bypass subjects. No other SNPs were associated with maximum weight loss. Furthermore, no SNPs were significantly associated with weight regain. Conclusion: The FTO SNP rs16945088 was associated with maximum weight loss after banding surgery. We found no evidence that obesity-risk SNPs in FTO or other obesity candidate genes derived from genome-wide association studies are associated with maximum weight loss or weight regain over 6 years of follow-up in bariatric surgery patients. The potential role of other obesity genes remains to be investigated. International Journal of Obesity (2011) 35, 676-683; doi: 10.1038/ijo.2010.166; published online 24 August 2010

Subject headings and genre

MEDICIN OCH HÄLSOVETENSKAP Medicinska och farmaceutiska grundvetenskaper hsv//swe
MEDICAL AND HEALTH SCIENCES Basic Medicine hsv//eng
severe obesity
polymorphism
genetics
longitudinal study
intervention

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Jacobson, Peter,1962Gothenburg University,Göteborgs universitet,Institutionen för medicin,Institute of Medicine(Swepub:gu)xjacop (author)
Rankinen, T (author)
Carlsson, Björn,1958Gothenburg University,Göteborgs universitet,Institutionen för medicin,Institute of Medicine(Swepub:gu)xcarbj (author)
Sjöström, LarsGothenburg University,Göteborgs universitet,Institutionen för medicin,Institute of Medicine(Swepub:gu)xsjosl (author)
Bouchard, C (author)
Carlsson, Lena M S,1957Gothenburg University,Göteborgs universitet,Institutionen för medicin,Institute of Medicine(Swepub:gu)xcarle (author)
Göteborgs universitetInstitutionen för medicin (creator_code:org_t)

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In:INTERNATIONAL JOURNAL OF OBESITY35:5, s. 676-6830307-0565

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