TY - JOUR
T1 - Genome-Wide Association Analysis of Pancreatic Beta Cell Glucose Sensitivity
AU - Deshmukh, Harshal A.
AU - Madsen, Anne Lundager
AU - Viñuela, Ana
AU - Have, Christian Theil
AU - Grarup, Niels
AU - Tura, Andrea
AU - Mahajan, Anubha
AU - Heggie, Alison J.
AU - Koivula, Robert W.
AU - De Masi, Federico
AU - Tsirigos, Konstantinos K.
AU - Linneberg, Allan
AU - Drivsholm, Thomas
AU - Pedersen, Oluf
AU - Sørensen, Thorkild I.A.
AU - Astrup, Arne
AU - Gjesing, Anette A.P.
AU - Pavo, Imre
AU - Wood, Andrew R.
AU - Ruetten, Hartmut
AU - Jones, Angus G.
AU - Koopman, Anitra D.M.
AU - Cederberg, Henna
AU - Rutters, Femke
AU - Ridderstrale, Martin
AU - Laakso, Markku
AU - McCarthy, Mark I.
AU - Frayling, Tim M.
AU - Ferrannini, Ele
AU - Franks, Paul W.
AU - Pearson, Ewan R.
AU - Mari, Andrea
AU - Hansen, Torban
AU - Walker, Mark
PY - 2020
Y1 - 2020
N2 - Context: Pancreatic beta-cell glucose sensitivity is the slope of the plasma glucoseinsulin secretion relationship and is a key predictor of deteriorating glucose tolerance
and development of type 2 diabetes. However, there are no large-scale studies looking
at the genetic determinants of beta-cell glucose sensitivity. Objective: To understand the genetic determinants of pancreatic beta-cell glucose
sensitivity using genome-wide meta-analysis and candidate gene studies.
Design: We performed a genome-wide meta-analysis for beta-cell glucose sensitivity
in subjects with type 2 diabetes and nondiabetic subjects from 6 independent cohorts
(n = 5706). Beta-cell glucose sensitivity was calculated from mixed meal and oral glucose
tolerance tests, and its associations between known glycemia-related single nucleotide
polymorphisms (SNPs) and genome-wide association study (GWAS) SNPs were
estimated using linear regression models. Results: Beta-cell glucose sensitivity was moderately heritable (h2
ranged from 34% to
55%) using SNP and family-based analyses. GWAS meta-analysis identified multiple
correlated SNPs in the CDKAL1 gene and GIPR-QPCTL gene loci that reached genomewide significance, with SNP rs2238691 in GIPR-QPCTL (P value = 2.64 × 10−9) and rs9368219
in the CDKAL1 (P value = 3.15 × 10−9) showing the strongest association with beta-cell
glucose sensitivity. These loci surpassed genome-wide significance when the GWAS
meta-analysis was repeated after exclusion of the diabetic subjects. After correction for
multiple testing, glycemia-associated SNPs in or near the HHEX and IGF2B2 loci were
also associated with beta-cell glucose sensitivity. Conclusion: We show that, variation at the GIPR-QPCTL and CDKAL1 loci are key
determinants of pancreatic beta-cell glucose sensitivity
AB - Context: Pancreatic beta-cell glucose sensitivity is the slope of the plasma glucoseinsulin secretion relationship and is a key predictor of deteriorating glucose tolerance
and development of type 2 diabetes. However, there are no large-scale studies looking
at the genetic determinants of beta-cell glucose sensitivity. Objective: To understand the genetic determinants of pancreatic beta-cell glucose
sensitivity using genome-wide meta-analysis and candidate gene studies.
Design: We performed a genome-wide meta-analysis for beta-cell glucose sensitivity
in subjects with type 2 diabetes and nondiabetic subjects from 6 independent cohorts
(n = 5706). Beta-cell glucose sensitivity was calculated from mixed meal and oral glucose
tolerance tests, and its associations between known glycemia-related single nucleotide
polymorphisms (SNPs) and genome-wide association study (GWAS) SNPs were
estimated using linear regression models. Results: Beta-cell glucose sensitivity was moderately heritable (h2
ranged from 34% to
55%) using SNP and family-based analyses. GWAS meta-analysis identified multiple
correlated SNPs in the CDKAL1 gene and GIPR-QPCTL gene loci that reached genomewide significance, with SNP rs2238691 in GIPR-QPCTL (P value = 2.64 × 10−9) and rs9368219
in the CDKAL1 (P value = 3.15 × 10−9) showing the strongest association with beta-cell
glucose sensitivity. These loci surpassed genome-wide significance when the GWAS
meta-analysis was repeated after exclusion of the diabetic subjects. After correction for
multiple testing, glycemia-associated SNPs in or near the HHEX and IGF2B2 loci were
also associated with beta-cell glucose sensitivity. Conclusion: We show that, variation at the GIPR-QPCTL and CDKAL1 loci are key
determinants of pancreatic beta-cell glucose sensitivity
KW - Glucose intolerance
KW - Diabetes progression
KW - Beta-cell function
KW - Incretin
KW - Mathematical model
U2 - 10.1210/clinem/dgaa653
DO - 10.1210/clinem/dgaa653
M3 - Journal article
C2 - 32944759
VL - 106
SP - 80
EP - 90
JO - Journal of Clinical Endocrinology and Metabolism
JF - Journal of Clinical Endocrinology and Metabolism
SN - 0021-972X
IS - 1
ER -