Genetic Variation in the Leptin Receptor Gene, Leptin, and Weight Gain in Young Dutch Adults

C.T.M. van Rossum, B. Hoebee, M.A. van Baak, M. Mars, W.H.M. Saris, J.C. Seidell

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Abstract

Objective: To investigate the association between leptin levels, polymorphisms in the leptin receptor (LEPR) gene, and weight gain. Research Methods and Procedures: From two large prospective cohorts in The Netherlands (n = 17, 500), we compared the baseline leptin of 259 subjects who had gained an average of 12.6 kg (range 5.5 to 33 kg) with 277 subjects who kept stable weight (range -2.6 to 3.1 kg) after a mean follow-up of 6.8 years. Three polymorphisms in the LEPR gene (Lys109Arg, Gln223Arg, and Lys656Asn) were determined. Results: Weight gainers had significantly higher baseline leptin levels than those who kept stable weight (odds ratio = 1.27, 95% confidence interval 1.1 to 1.5, per SD increase in loge-transformed leptin). Weight gainers with the Arg109 or the Arg223 alleles had higher leptin levels compared with the noncarriers of these alleles. Only among men, the association between leptin and weight gain tended to be stronger among those with an Arg223 allele compared with those without this mutation. Discussion: Relatively high leptin levels predict weight gain, suggesting that leptin resistance plays a role in the development of obesity in the general population. Higher leptin levels for those with a Lys109Arg or Gln223Arg mutation (or a linked other marker) may imply that these subjects have a modified functional leptin receptor. However, the role of these mutations on weight gain is limited
Original languageEnglish
Pages (from-to)377-386
JournalObesity Research
Volume11
Issue number3
DOIs
Publication statusPublished - 2003

Keywords

  • plasma leptin
  • serum leptin
  • menstrual-cycle
  • obese humans
  • body-weight
  • lepr gene
  • fat mass
  • women
  • mice
  • predisposition

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