AIMS/HYPOTHESIS: Diabetic nephropathy, characterised by persistent proteinuria, hypertension and progressive kidney failure, affects a subset of susceptible individuals with diabetes. It is also a leading cause of end-stage renal disease (ESRD). Non-synonymous (ns) single nucleotide polymorphisms (SNPs) have been reported to contribute to genetic susceptibility in both monogenic disorders and common complex diseases. The objective of this study was to investigate whether nsSNPs are involved in susceptibility to diabetic nephropathy using a case-control design. METHODS: White type 1 diabetic patients with (cases) and without (controls) nephropathy from eight centres in the UK and Ireland were genotyped for a selected subset of nsSNPs using Illumina's GoldenGate BeadArray assay. A chi (2) test for trend, stratified by centre, was used to assess differences in genotype distribution between cases and controls. Genomic control was used to adjust for possible inflation of test statistics, and the False Discovery Rate method was used to account for multiple testing. RESULTS: We assessed 1,111 nsSNPs for association with diabetic nephropathy in 1,711 individuals with type 1 diabetes (894 cases, 817 controls). A number of SNPs demonstrated a significant difference in genotype distribution between groups before but not after correction for multiple testing. Furthermore, neither subgroup analysis (diabetic nephropathy with ESRD or diabetic nephropathy without ESRD) nor stratification by duration of diabetes revealed any significant differences between groups. CONCLUSIONS/ INTERPRETATION: The nsSNPs investigated in this study do not appear to contribute significantly to the development of diabetic nephropathy in patients with type 1 diabetes.
AIMS/HYPOTHESIS: Diabetic nephropathy, characterised by persistent proteinuria, hypertension and progressive kidney failure, affects a subset of susceptible individuals with diabetes. It is also a leading cause of end-stage renal disease (ESRD). Non-synonymous (ns) single nucleotide polymorphisms (SNPs) have been reported to contribute to genetic susceptibility in both monogenic disorders and common complex diseases. The objective of this study was to investigate whether nsSNPs are involved in susceptibility to diabetic nephropathy using a case-control design. METHODS: White type 1 diabeticpatients with (cases) and without (controls) nephropathy from eight centres in the UK and Ireland were genotyped for a selected subset of nsSNPs using Illumina's GoldenGate BeadArray assay. A chi (2) test for trend, stratified by centre, was used to assess differences in genotype distribution between cases and controls. Genomic control was used to adjust for possible inflation of test statistics, and the False Discovery Rate method was used to account for multiple testing. RESULTS: We assessed 1,111 nsSNPs for association with diabetic nephropathy in 1,711 individuals with type 1 diabetes (894 cases, 817 controls). A number of SNPs demonstrated a significant difference in genotype distribution between groups before but not after correction for multiple testing. Furthermore, neither subgroup analysis (diabetic nephropathy with ESRD or diabetic nephropathy without ESRD) nor stratification by duration of diabetes revealed any significant differences between groups. CONCLUSIONS/ INTERPRETATION: The nsSNPs investigated in this study do not appear to contribute significantly to the development of diabetic nephropathy in patients with type 1 diabetes.
Authors: J B Fan; A Oliphant; R Shen; B G Kermani; F Garcia; K L Gunderson; M Hansen; F Steemers; S L Butler; P Deloukas; L Galver; S Hunt; C McBride; M Bibikova; T Rubano; J Chen; E Wickham; D Doucet; W Chang; D Campbell; B Zhang; S Kruglyak; D Bentley; J Haas; P Rigault; L Zhou; J Stuelpnagel; M S Chee Journal: Cold Spring Harb Symp Quant Biol Date: 2003
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Authors: Paul R Burton; David G Clayton; Lon R Cardon; Nick Craddock; Panos Deloukas; Audrey Duncanson; Dominic P Kwiatkowski; Mark I McCarthy; Willem H Ouwehand; Nilesh J Samani; John A Todd; Peter Donnelly; Jeffrey C Barrett; Dan Davison; Doug Easton; David M Evans; Hin-Tak Leung; Jonathan L Marchini; Andrew P Morris; Chris C A Spencer; Martin D Tobin; Antony P Attwood; James P Boorman; Barbara Cant; Ursula Everson; Judith M Hussey; Jennifer D Jolley; Alexandra S Knight; Kerstin Koch; Elizabeth Meech; Sarah Nutland; Christopher V Prowse; Helen E Stevens; Niall C Taylor; Graham R Walters; Neil M Walker; Nicholas A Watkins; Thilo Winzer; Richard W Jones; Wendy L McArdle; Susan M Ring; David P Strachan; Marcus Pembrey; Gerome Breen; David St Clair; Sian Caesar; Katharine Gordon-Smith; Lisa Jones; Christine Fraser; Elaine K Green; Detelina Grozeva; Marian L Hamshere; Peter A Holmans; Ian R Jones; George Kirov; Valentina Moskivina; Ivan Nikolov; Michael C O'Donovan; Michael J Owen; David A Collier; Amanda Elkin; Anne Farmer; Richard Williamson; Peter McGuffin; Allan H Young; I Nicol Ferrier; Stephen G Ball; Anthony J Balmforth; Jennifer H Barrett; Timothy D Bishop; Mark M Iles; Azhar Maqbool; Nadira Yuldasheva; Alistair S Hall; Peter S Braund; Richard J Dixon; Massimo Mangino; Suzanne Stevens; John R Thompson; Francesca Bredin; Mark Tremelling; Miles Parkes; Hazel Drummond; Charles W Lees; Elaine R Nimmo; Jack Satsangi; Sheila A Fisher; Alastair Forbes; Cathryn M Lewis; Clive M Onnie; Natalie J Prescott; Jeremy Sanderson; Christopher G Matthew; Jamie Barbour; M Khalid Mohiuddin; Catherine E Todhunter; John C Mansfield; Tariq Ahmad; Fraser R Cummings; Derek P Jewell; John Webster; Morris J Brown; Mark G Lathrop; John Connell; Anna Dominiczak; Carolina A Braga Marcano; Beverley Burke; Richard Dobson; Johannie Gungadoo; Kate L Lee; Patricia B Munroe; Stephen J Newhouse; Abiodun Onipinla; Chris Wallace; Mingzhan Xue; Mark Caulfield; Martin Farrall; Anne Barton; Ian N Bruce; Hannah Donovan; Steve Eyre; Paul D Gilbert; Samantha L Hilder; Anne M Hinks; Sally L John; Catherine Potter; Alan J Silman; Deborah P M Symmons; Wendy Thomson; Jane Worthington; David B Dunger; Barry Widmer; Timothy M Frayling; Rachel M Freathy; Hana Lango; John R B Perry; Beverley M Shields; Michael N Weedon; Andrew T Hattersley; Graham A Hitman; Mark Walker; Kate S Elliott; Christopher J Groves; Cecilia M Lindgren; Nigel W Rayner; Nicolas J Timpson; Eleftheria Zeggini; Melanie Newport; Giorgio Sirugo; Emily Lyons; Fredrik Vannberg; Adrian V S Hill; Linda A Bradbury; Claire Farrar; Jennifer J Pointon; Paul Wordsworth; Matthew A Brown; Jayne A Franklyn; Joanne M Heward; Matthew J Simmonds; Stephen C L Gough; Sheila Seal; Michael R Stratton; Nazneen Rahman; Maria Ban; An Goris; Stephen J Sawcer; Alastair Compston; David Conway; Muminatou Jallow; Melanie Newport; Giorgio Sirugo; Kirk A Rockett; Suzannah J Bumpstead; Amy Chaney; Kate Downes; Mohammed J R Ghori; Rhian Gwilliam; Sarah E Hunt; Michael Inouye; Andrew Keniry; Emma King; Ralph McGinnis; Simon Potter; Rathi Ravindrarajah; Pamela Whittaker; Claire Widden; David Withers; Niall J Cardin; Dan Davison; Teresa Ferreira; Joanne Pereira-Gale; Ingeleif B Hallgrimsdo'ttir; Bryan N Howie; Zhan Su; Yik Ying Teo; Damjan Vukcevic; David Bentley; Matthew A Brown; Alastair Compston; Martin Farrall; Alistair S Hall; Andrew T Hattersley; Adrian V S Hill; Miles Parkes; Marcus Pembrey; Michael R Stratton; Sarah L Mitchell; Paul R Newby; Oliver J Brand; Jackie Carr-Smith; Simon H S Pearce; R McGinnis; A Keniry; P Deloukas; John D Reveille; Xiaodong Zhou; Anne-Marie Sims; Alison Dowling; Jacqueline Taylor; Tracy Doan; John C Davis; Laurie Savage; Michael M Ward; Thomas L Learch; Michael H Weisman; Mathew Brown Journal: Nat Genet Date: 2007-10-21 Impact factor: 38.330
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