Genome-Wide Association Identifies Nine Common Variants Associated With Fasting Proinsulin Levels and Provides New Insights Into the Pathophysiology of Type 2 Diabetes

DSpace/Manakin Repository

Genome-Wide Association Identifies Nine Common Variants Associated With Fasting Proinsulin Levels and Provides New Insights Into the Pathophysiology of Type 2 Diabetes

Citable link to this page

 

 
Title: Genome-Wide Association Identifies Nine Common Variants Associated With Fasting Proinsulin Levels and Provides New Insights Into the Pathophysiology of Type 2 Diabetes
Author: Strawbridge, Rona J.; Dupuis, Josée; Prokopenko, Inga; Barker, Adam; Ahlqvist, Emma; Rybin, Denis; Petrie, John R.; Travers, Mary E.; Bouatia-Naji, Nabila; Dimas, Antigone S.; Nica, Alexandra; Wheeler, Eleanor; Chen, Han; Voight, Benjamin F.; Taneera, Jalal; Kanoni, Stavroula; Peden, John F.; Turrini, Fabiola; Gustafsson, Stefan; Zabena, Carina; Almgren, Peter; Barker, David J.P.; Barnes, Daniel; Dennison, Elaine M.; Eriksson, Johan G.; Eriksson, Per; Eury, Elodie; Folkersen, Lasse; Fox, Caroline; Frayling, Timothy M.; Goel, Anuj; Gu, Harvest F.; Horikoshi, Momoko; Isomaa, Bo; Jackson, Anne U.; Jameson, Karen A.; Kajantie, Eero; Kerr-Conte, Julie; Kuulasmaa, Teemu; Kuusisto, Johanna; Loos, Ruth J.F.; Luan, Jian'an; Makrilakis, Konstantinos; Manning, Alisa K; Martínez-Larrad, María Teresa; Narisu, Narisu; Nastase Mannila, Maria; Öhrvik, John; Osmond, Clive; Pascoe, Laura; Payne, Felicity; Sayer, Avan A.; Sennblad, Bengt; Silveira, Angela; Stančáková, Alena; Stirrups, Kathy; Swift, Amy J.; Syvänen, Ann-Christine; Tuomi, Tiinamaija; van 't Hooft, Ferdinand M.; Walker, Mark; Weedon, Michael N.; Xie, Weijia; Zethelius, Björn; Ongen, Halit; Mälarstig, Anders; Hopewell, Jemma C.; Saleheen, Danish; Chambers, John; Parish, Sarah; Danesh, John; Kooner, Jaspal; Östenson, Claes-Göran; Lind, Lars; Cooper, Cyrus C.; Serrano-Ríos, Manuel; Ferrannini, Ele; Forsen, Tom J.; Clarke, Robert; Franzosi, Maria Grazia; Seedorf, Udo; Watkins, Hugh; Froguel, Philippe; Johnson, Paul; Deloukas, Panos; Collins, Francis S.; Laakso, Markku; Dermitzakis, Emmanouil T.; Boehnke, Michael; McCarthy, Mark I.; Wareham, Nicholas J.; Groop, Leif; Pattou, François; Gloyn, Anna L.; Dedoussis, George V.; Lyssenko, Valeriya; Meigs, James Benjamin; Barroso, Inês; Watanabe, Richard M.; Ingelsson, Erik; Langenberg, Claudia; Hamsten, Anders; Florez, Jose Carlos

Note: Order does not necessarily reflect citation order of authors.

Citation: Strawbridge, Rona J., Josée Dupuis, Inga Prokopenko, Adam Barker, Emma Ahlqvist, Denis Rybin, John R. Petrie, et al. 2011. Genome-wide association identifies nine common variants associated with fasting proinsulin levels and provides new insights into the pathophysiology of type 2 diabetes. Diabetes 60(10): 2624-2634.
Full Text & Related Files:
Abstract: OBJECTIVE: Proinsulin is a precursor of mature insulin and C-peptide. Higher circulating proinsulin levels are associated with impaired β-cell function, raised glucose levels, insulin resistance, and type 2 diabetes (T2D). Studies of the insulin processing pathway could provide new insights about T2D pathophysiology. RESEARCH DESIGN AND METHODS: We have conducted a meta-analysis of genome-wide association tests of ∼2.5 million genotyped or imputed single nucleotide polymorphisms (SNPs) and fasting proinsulin levels in 10,701 nondiabetic adults of European ancestry, with follow-up of 23 loci in up to 16,378 individuals, using additive genetic models adjusted for age, sex, fasting insulin, and study-specific covariates. RESULTS: Nine SNPs at eight loci were associated with proinsulin levels (P < 5 × 10−8). Two loci (LARP6 and SGSM2) have not been previously related to metabolic traits, one (MADD) has been associated with fasting glucose, one (PCSK1) has been implicated in obesity, and four (TCF7L2, SLC30A8, VPS13C/C2CD4A/B, and ARAP1, formerly CENTD2) increase T2D risk. The proinsulin-raising allele of ARAP1 was associated with a lower fasting glucose (P = 1.7 × 10−4), improved β-cell function (P = 1.1 × 10−5), and lower risk of T2D (odds ratio 0.88; P = 7.8 × 10−6). Notably, PCSK1 encodes the protein prohormone convertase 1/3, the first enzyme in the insulin processing pathway. A genotype score composed of the nine proinsulin-raising alleles was not associated with coronary disease in two large case-control datasets. CONCLUSIONS: We have identified nine genetic variants associated with fasting proinsulin. Our findings illuminate the biology underlying glucose homeostasis and T2D development in humans and argue against a direct role of proinsulin in coronary artery disease pathogenesis.
Published Version: doi:10.2337/db11-0415
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3178302/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:10524363
Downloads of this work:

Show full Dublin Core record

This item appears in the following Collection(s)

 
 

Search DASH


Advanced Search
 
 

Submitters