title: Gender, obesity, hepatic nuclear factor-1alpha G319S and the age-of-onset of type 2 diabetes in Canadian Oji-Cree.
abstract: Among the Oji-Cree of northern Ontario, women have both a higher prevalence and an earlier onset of type 2 diabetes compared to men. We studied the relationship between HNF1A S319 and both the presence of and the age-of-onset of type 2 diabetes in women and men separately. We found that: 1) in women, there was a significant difference in the mean age-of-onset of type 2 diabetes according to HNF1A genotype; and 2) in men, there was no difference in the mean age-of-onset of type 2 diabetes according to HNF1A genotype. The findings indicate that HNF1A S319 is associated with increased susceptibility to type 2 diabetes in both men and women, but with earlier age-of-onset in women only. One factor that might account for the gender difference in the onset of HNF1A S319-associated type 2 diabetes is the greater prevalence and severity, and earlier onset of, obesity among female Oji-Cree.
authors.affiliation: John P Robarts Research Institute, London, Ontario, Canada. robert.hegele@rri.on.ca
authors.forename: R A
authors.initials: RA
authors.lastname: Hegele
authors.forename: H
authors.initials: H
authors.lastname: Cao
authors.forename: S B
authors.initials: SB
authors.lastname: Harris
authors.forename: B
authors.initials: B
authors.lastname: Zinman
authors.forename: A J
authors.initials: AJ
authors.lastname: Hanley
authors.forename: C M
authors.initials: CM
authors.lastname: Anderson
mesh_terms: D000293:Adolescent; D000328:Adult; D017668:Age of Onset; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D044466:Asian People / Q000235:genetics*; D002648:Child; D015331:Cohort Studies; D004268:DNA-Binding Proteins; D003924:Diabetes Mellitus, Type 2 / Q000150:complications / Q000453:epidemiology / Q000235:genetics*; D005260:Female; D005838:Genotype; D051537:Hepatocyte Nuclear Factor 1; D051538:Hepatocyte Nuclear Factor 1-alpha; D051539:Hepatocyte Nuclear Factor 1-beta; D006801:Humans; D007198:Indians, North American / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D009687:Nuclear Proteins; D009765:Obesity / Q000150:complications / Q000235:genetics*; D009864:Ontario / Q000453:epidemiology; D015995:Prevalence; D012737:Sex Factors; D014157:Transcription Factors / Q000235:genetics*
chemical_list: D004268:DNA-Binding Proteins; C496487:HNF1A protein, human; C496495:HNF1B protein, human; D051538:Hepatocyte Nuclear Factor 1-alpha; D009687:Nuclear Proteins; D014157:Transcription Factors; D051537:Hepatocyte Nuclear Factor 1; D051539:Hepatocyte Nuclear Factor 1-beta