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http://purl.uniprot.org/citations/20043145http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/20043145http://www.w3.org/2000/01/rdf-schema#comment"

Aims/hypothesis

Exercise training improves glucose homeostasis, but large inter-individual differences are reported, suggesting a role of genetic factors. We investigated whether variants either confirmed or newly identified as diabetes susceptibility variants through genome-wide association studies (GWAS) modulate changes in phenotypes derived from an IVGTT in response to an endurance training programme.

Methods

We analysed eight polymorphisms in seven type 2 diabetes genes (CDKAL1 rs7756992; CDKN2A and CDKN2B rs10811661 and rs564398; HHEX rs7923837; IGF2BP2 rs4402960; KCNJ11 rs5215; PPARG rs1801282; and TCF7L2 rs7903146) in a maximum of 481 sedentary, non-diabetic white individuals, who participated in a 20-week endurance training programme. Associations were tested between the variants and changes in IVGTT-derived phenotypes.

Results

The only evidence of association with training response was found with PPARG rs1801282 (Pro12Ala). We observed that Ala carriers experienced greater increase in overall glucose tolerance (Deltaglucose disappearance index Ala/Ala 0.22 +/- 0.22, Pro/Ala 0.14 +/-0.06, Pro/Pro 0.004 +/-0.03; p = 0.0008), glucose effectiveness (Ala/Ala 0.28 +/-0.41, Pro/Ala 0.44 +/- 0.14, Pro/Pro 0.09 +/-0.06; p = 0.004), acute insulin response to glucose (Ala/Ala 64.21 +/-37.73, Pro/Ala -11.92 +/- 40.30, Pro/Pro -46.30 +/-14.70; p = 0.03) and disposition index (Ala/Ala 551.8 +/-448.5, Pro/Ala 534.6 +/- 218.3, Pro/Pro -7.44 +/-88.18; p = 0.003).

Conclusions/interpretation

Compared with Pro/Pro individuals, PPARG Ala carriers experienced greater improvements in glucose and insulin metabolism in response to regular endurance training. However, we did not find evidence of association between type 2 diabetes susceptibility variants recently identified through GWAS and glucose homeostasis response to exercise. Our results extend those of previous studies showing that Ala carriers appear to be more responsive to beneficial health effects of lifestyle interventions."xsd:string
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http://purl.uniprot.org/citations/20043145http://purl.uniprot.org/core/author"Bouchard C."xsd:string
http://purl.uniprot.org/citations/20043145http://purl.uniprot.org/core/author"Rankinen T."xsd:string
http://purl.uniprot.org/citations/20043145http://purl.uniprot.org/core/author"Rao D.C."xsd:string
http://purl.uniprot.org/citations/20043145http://purl.uniprot.org/core/author"Rice T."xsd:string
http://purl.uniprot.org/citations/20043145http://purl.uniprot.org/core/author"Bergman R.N."xsd:string
http://purl.uniprot.org/citations/20043145http://purl.uniprot.org/core/author"Perusse L."xsd:string
http://purl.uniprot.org/citations/20043145http://purl.uniprot.org/core/author"Weisnagel S.J."xsd:string
http://purl.uniprot.org/citations/20043145http://purl.uniprot.org/core/author"Ruchat S.M."xsd:string
http://purl.uniprot.org/citations/20043145http://purl.uniprot.org/core/date"2010"xsd:gYear
http://purl.uniprot.org/citations/20043145http://purl.uniprot.org/core/name"Diabetologia"xsd:string
http://purl.uniprot.org/citations/20043145http://purl.uniprot.org/core/pages"679-689"xsd:string
http://purl.uniprot.org/citations/20043145http://purl.uniprot.org/core/title"Improvements in glucose homeostasis in response to regular exercise are influenced by the PPARG Pro12Ala variant: results from the HERITAGE Family Study."xsd:string
http://purl.uniprot.org/citations/20043145http://purl.uniprot.org/core/volume"53"xsd:string
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