Human Heredity
Original Paper
HLA Associations with ObesityFabsitz R.R.a · Nam J.-m.b · Gart J.b · Stunkard A.c · Price R.A.c · Wilson P.W.F.daNational Heart, Lung and Blood Institute, Bethesda, Md.; bNational Cancer Institute, Bethesda, Md.; cUniversity of Pennsylvania, Philadelphia, Pa.; dNational Heart, Lung and Blood Institute, Framingham, Mass., USA
Keywords: HLAGenetic markersObesityBody mass index |
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Article / Publication Details
Published online: September 02, 2008
Issue release date: 1989
Number of Print Pages: 9
Number of Figures: 0
Number of Tables: 0
ISSN: 0001-5652 (Print)
eISSN: 1423-0062 (Online)
For additional information: https://www.karger.com/HHE
Abstract
A subgroup of 351 subjects with human leukocyte antigen (HLA) typing were available from the Framingham Heart Study for analyses to identify associations with obesity. The subjects consisted of 143 males and 208 females aged 58–88 years at the 15th biennial examination in 1978. The obese classification was based on maximum body mass index (BMI) over the 16 available biennial examinations of the Framingham Heart Study. The subjects were classified as obese if they exceeded the 95th percentile of BMI for 20- to 29-year-old subjects as described in the NHANES II study; males were obese if BMI > 31.1 and females were obese if BMI > 32.3. There were 27 obese males (18.9%) and 44 obese females (21.2%) in the sample. Gene frequencies were compared between the nonobese and obese groups for the pooled sample as well as by sex. Among alleles previously shown to be related to obesity, HLA Bw35 appeared to be more frequent in obese females but these data did not confirm a difference for the B18 or Cw4 alleles. More importantly, HLA Aw30 was found to be significantly higher among the obese subjects in both males and females. Further analyses adjusting for potential confounding variables reduced the estimated relative risk for obesity for subjects with the Bw35 allele to approximately 1.30 and no longer significant for this sample size. In contrast, the relative risk for Aw30, while reduced, remained significant after adjustment for confounding variables. Based on these data, individuals with the Aw30 allele have a relative risk of 2.61 for obesity. Methodological issues appear to influence these analyses and may account for differences among previous studies.
© 1989 S. Karger AG, Basel
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Article / Publication Details
Published online: September 02, 2008
Issue release date: 1989
Number of Print Pages: 9
Number of Figures: 0
Number of Tables: 0
ISSN: 0001-5652 (Print)
eISSN: 1423-0062 (Online)
For additional information: https://www.karger.com/HHE
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