J
John A. Todd
Researcher at University of Oxford
Publications - 540
Citations - 73116
John A. Todd is an academic researcher from University of Oxford. The author has contributed to research in topics: Locus (genetics) & Single-nucleotide polymorphism. The author has an hindex of 121, co-authored 515 publications receiving 67413 citations. Previous affiliations of John A. Todd include University of Cambridge & National Institute for Health Research.
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Journal ArticleDOI
Genome-wide association study of 14,000 cases of seven common diseases and 3,000 shared controls
Paul Burton,David Clayton,Lon R. Cardon,Nicholas John 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,H. T. Leung,Jonathan 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 Jolley,Alexandra S. Knight,Kerstin Koch,Elizabeth Meech,Sarah Nutland,Christopher Prowse,Helen Stevens,Niall C. Taylor,Graham R. Walters,Neil Walker,Nicholas A. Watkins,Thilo Winzer,Richard Jones,Wendy L. McArdle,Susan M. Ring,David P. Strachan,Marcus Pembrey,Gerome Breen,David St Clair,Sian Caesar,Katherine Gordon-Smith,Lisa Jones,Christine Fraser,Elaine K. Green,Detelina Grozeva,Marian L. Hamshere,Peter Holmans,Ian Jones,George Kirov,Valentina Moskvina,Ivan Nikolov,Michael Conlon O'Donovan,Michael John 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,D. Timothy 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 E. Drummond,Charlie W. Lees,Elaine R. Nimmo,Jack Satsangi,Sheila A. Fisher,Alastair Forbes,Cathryn M. Lewis,Clive M. Onnie,Natalie J. Prescott,Jeremy D. Sanderson,Christopher G. Mathew,Jamie Barbour,M. Khalid Mohiuddin,Catherine E. Todhunter,John C. Mansfield,Tariq Ahmad,Fraser Cummings,Derek P. Jewell,John Webster,Morris J. Brown,G. Mark Lathrop,John M. C. Connell,Anna F. Dominiczak,Carolina A. Braga Marcano,Beverley Burke,Richard Dobson,Johannie Gungadoo,Kate L. Lee,Patricia B. Munroe,Stephen Newhouse,Abiodun Onipinla,Chris Wallace,Mingzhan Xue,Mark J. Caulfield,Martin Farrall,Anne Barton,Ian N. Bruce,Hannah Donovan,Steve Eyre,Paul D. Gilbert,Samantha L. Hider,Anne Hinks,Sally 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,Nicholas J. Timpson,Eleftheria Zeggini,Melanie J. Newport,Giorgio Sirugo,Emily J. Lyons,Fredrik O. Vannberg,Adrian V. S. Hill,Linda A. Bradbury,C Farrar,J 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 Sawcer,Alastair Compston,David J. Conway,Muminatou Jallow,Kirk A. Rockett,Suzannah Bumpstead,Amy Chaney,Kate Downes,Mohammed J. R. Ghori,Rhian Gwilliam,Sarah E. Hunt,Michael Inouye,Andrew Keniry,Emma King,Ralph McGinnis,Simon C. Potter,Rathi Ravindrarajah,Pamela Whittaker,Claire Widden,David Withers,Niall Cardin,Teresa Ferreira,Joanne Pereira-Gale,Ingileif B. Hallgrímsdóttir,Bryan Howie,Zhan Su,Yik Ying Teo,Damjan Vukcevic,David Bentley,A Compston +195 more
TL;DR: This study has demonstrated that careful use of a shared control group represents a safe and effective approach to GWA analyses of multiple disease phenotypes; generated a genome-wide genotype database for future studies of common diseases in the British population; and shown that, provided individuals with non-European ancestry are excluded, the extent of population stratification in theBritish population is generally modest.
Journal ArticleDOI
Association of the T-cell regulatory gene CTLA4 with susceptibility to autoimmune disease
H Ueda,Howson Jmm.,Laura Esposito,Joanne M. Heward,Hywel Snook,Giselle Chamberlain,Dan Rainbow,Hunter Kmd.,Anne Smith,G Di Genova,G Di Genova,Mathias H. Herr,Mathias H. Herr,Ingrid Dahlman,Ingrid Dahlman,F Payne,Deborah J. Smyth,Christopher E. Lowe,Twells Rcj.,Sarah Howlett,Barry C. Healy,Sarah Nutland,Helen E. Rance,Vincent H. Everett,Luc J. Smink,A C Lam,Heather J. Cordell,Neil Walker,C Bordin,John S. Hulme,Costantino Motzo,Francesco Cucca,J F Hess,Michael L. Metzker,Michael L. Metzker,Jane Rogers,Simon G. Gregory,Amit Allahabadia,Amit Allahabadia,R Nithiyananthan,Eva Tuomilehto-Wolf,Jaakko Tuomilehto,Polly J. Bingley,Kathleen M Gillespie,Dag E. Undlien,Kjersti S. Rønningen,Cristian Guja,Constantin Ionescu-Tirgoviste,David A. Savage,Alexander P. Maxwell,Dennis Carson,Christopher Patterson,Jayne A. Franklyn,David Clayton,Laurence B. Peterson,Linda S. Wicker,John A. Todd,Gough Scl. +57 more
TL;DR: In this article, the authors identify polymorphisms of the cytotoxic T lymphocyte antigen 4 gene (CTLA4) as candidates for primary determinants of risk of the common autoimmune disorders Graves' disease, autoimmune hypothyroidism and type 1 diabetes.
Journal ArticleDOI
HLA-DQ beta gene contributes to susceptibility and resistance to insulin-dependent diabetes mellitus.
TL;DR: Analysis of DNA sequences from diabetics indicates that alleles ofHLA-DQβ determine both disease susceptibility and resistance, and that the structure of the DQ molecule, in particular residue 57 of the β-chain, specifies the autoimmune response against the insulin-producing islet cells.
Journal ArticleDOI
Genome-wide association study and meta-analysis find that over 40 loci affect risk of type 1 diabetes
Jeffrey C. Barrett,David Clayton,Patrick Concannon,Beena Akolkar,Jason D. Cooper,Henry A. Erlich,Cécile Julier,Grant Morahan,Jørn Nerup,Concepcion Nierras,Vincent Plagnol,Flemming Pociot,Helen Schuilenburg,Deborah J. Smyth,Helen Stevens,John A. Todd,Neil Walker,Stephen S. Rich +17 more
TL;DR: The many new candidate genes suggested by these results include IL10, IL19, IL20, GLIS3, CD69 and IL27.
Journal ArticleDOI
Robust associations of four new chromosome regions from genome-wide analyses of type 1 diabetes.
John A. Todd,Neil Walker,Jason D. Cooper,Deborah J. Smyth,Kate Downes,Vincent Plagnol,Rebecca Bailey,Sergey Nejentsev,Sarah F. Field,Felicity Payne,Christopher E. Lowe,Jeffrey S. Szeszko,Jason P. Hafler,Lauren R. Zeitels,Jennie H M Yang,Adrian Vella,Adrian Vella,Sarah Nutland,Helen Stevens,Helen Schuilenburg,Gillian Coleman,Meeta Maisuria,William Meadows,Luc J. Smink,Barry C. Healy,Oliver S. Burren,Alex C. Lam,Nigel R. Ovington,James E. Allen,Ellen C. Adlem,H. T. Leung,Chris Wallace,Joanna M. M. Howson,Cristian Guja,Constantin Ionescu-Tirgoviste,Matthew J. Simmonds,Joanne M. Heward,Stephen C. L. Gough,David B. Dunger,Linda S. Wicker,David Clayton +40 more
TL;DR: This study increases the number of T1D loci with compelling evidence from six to at least ten, with evidence for chromosome 18q22 and 18p11, which showed association with autoimmune thyroid disease.