Personne : Pérusse, Louis
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Pérusse
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Louis
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Université Laval. Département de kinésiologie
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ncf10139306
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Publication Restreint Relation between a BglII polymorphism in 3 beta-hydroxysteroid dehydrogenase gene and adipose tissue distribution in humans(North American Association for the Study of Obesity, 1994-09-01) Bouchard, Claude; Dionne, France T.; Pérusse, Louis; Dériaz, Olivier; Vohl, Marie-Claude; Chagnon, MoniqueThe aim of this study was to investigate the association between a restriction fragment length polymorphism (RFLP) at the 3β‐hydroxysteroid dehydrogenase locus and adipose tissue distribution pheno‐types. A total of 132 unrelated individuals from the Quebec Family Study were followed prospectively for an average period of 11.3 years. The Bgl II polymorphism in exon 4 of the 3β‐HSD gene was detected by PCR. Body mass, body fat, and regional fat distribution indicators were adjusted for age and age2 within each gender. Associations were assessed in unrelated adults with ANOVA across three genotypes. No association was found for the indicators of body mass, body fat, and regional distribution of adipose tissue measured in 1992. In women, the changes (difference between data collected in 1992 and at entry) in the sum of six skinfolds (p=0.04), abdominal skinfold (p=0.01), and abdominal skinfold adjusted (p=0.03) for the sum of six skinfolds at entry were related to the Bgl II polymorphism at the 3β‐HSD locus. These relations were not found in men, but they gained less body mass and body fat over the 11.3‐year period. This suggests that sequence variation at the 3β‐HSD locus or in neighboring genes on chromosome 1 may contribute to individual differences in body fat content and adipose tissue distribution in adult women, particularly in abdominal adipose tissue deposition as they grow older and gain body fat.