M
Mark Walker
Researcher at University of Ottawa
Publications - 690
Citations - 63950
Mark Walker is an academic researcher from University of Ottawa. The author has contributed to research in topics: Population & Pregnancy. The author has an hindex of 97, co-authored 622 publications receiving 58554 citations. Previous affiliations of Mark Walker include Newcastle University & Queen's University.
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Journal ArticleDOI
Teenage pregnancy and adverse birth outcomes: a large population based retrospective cohort study
TL;DR: Teenage pregnancy increases the risk of adverse birth outcomes that is independent of important known confounders, and challenges the accepted opinion that adverse birth outcome associated with teenage pregnancy is attributable to low socioeconomic status, inadequate prenatal care and inadequate weight gain during pregnancy.
Journal ArticleDOI
Genome-wide association study of CNVs in 16,000 cases of eight common diseases and 3,000 shared controls
Nicholas John Craddock,Matthew E. Hurles,Niall Cardin,Richard D. Pearson,Vincent Plagnol,Samuel Robson,Damjan Vukcevic,Chris P. Barnes,Donald F. Conrad,Eleni Giannoulatou,Christopher Holmes,Jonathan Marchini,Kathy Stirrups,Martin D. Tobin,Louise V. Wain,Christopher Yau,Jan Aerts,Tariq Ahmad,T. Daniel Andrews,Hazel Arbury,Anthony Attwood,Anthony Attwood,Anthony Attwood,Adam Auton,Stephen G. Ball,Anthony J. Balmforth,Jeffrey C. Barrett,Inês Barroso,Anne Barton,Amanda J. Bennett,Sanjeev S. Bhaskar,Katarzyna Blaszczyk,John Bowes,Oliver J. Brand,Peter S. Braund,Francesca Bredin,Gerome Breen,Gerome Breen,Morris J. Brown,Ian N. Bruce,Jaswinder Bull,Oliver S. Burren,John Burton,Jake K. Byrnes,Sian Caesar,Chris Clee,Alison J. Coffey,John M. C. Connell,Jason D. Cooper,Anna F. Dominiczak,Kate Downes,Hazel E. Drummond,Darshna Dudakia,Andrew Dunham,Bernadette Ebbs,Diana Eccles,Sarah Edkins,Cathryn Edwards,Anna Elliot,Paul Emery,David M. Evans,Gareth Evans,Steve Eyre,Anne Farmer,I. Nicol Ferrier,Lars Feuk,Lars Feuk,Tomas W Fitzgerald,Edward Flynn,Alistair Forbes,Liz Forty,Jayne A. Franklyn,Jayne A. Franklyn,Rachel M. Freathy,Polly Gibbs,Paul Gilbert,Omer Gokumen,Katherine Gordon-Smith,Katherine Gordon-Smith,Emma Gray,Elaine K. Green,Christopher J. Groves,Detelina Grozeva,Rhian Gwilliam,A Hall,Naomi Hammond,Matthew Hardy,Pile Harrison,Neelam Hassanali,Husam Hebaishi,Sarah Hines,Anne Hinks,Graham A. Hitman,Lynne J. Hocking,Eleanor Howard,Philip Howard,Joanna M. M. Howson,Debbie Hughes,Sarah E. Hunt,John D. Isaacs,Mahim Jain,Derek P. Jewell,Toby Johnson,Jennifer Jolley,Jennifer Jolley,Ian Jones,Lisa Jones,George Kirov,Cordelia Langford,Hana Lango-Allen,G. Mark Lathrop,James Lee,Kate L. Lee,Charlie W. Lees,Kevin Lewis,Cecilia M. Lindgren,Meeta Maisuria-Armer,Julian Maller,John C. Mansfield,Paul Martin,Dunecan Massey,Wendy L. McArdle,Peter McGuffin,Kirsten McLay,Alexander J. Mentzer,Michael L. Mimmack,Ann E. Morgan,Andrew P. Morris,Craig Mowat,Simon Myers,William G. Newman,Elaine R. Nimmo,Michael Conlon O'Donovan,Abiodun Onipinla,Ifejinelo Onyiah,Nigel R. Ovington,Michael John Owen,Kimmo Palin,Kirstie Parnell,David Pernet,John R. B. Perry,Anne M. Phillips,Dalila Pinto,Natalie J. Prescott,Inga Prokopenko,Michael A. Quail,Suzanne Rafelt,Nigel W. Rayner,Richard Redon,David M. Reid,Anthony Renwick,Susan M. Ring,Neil Robertson,E. Russell,David St Clair,Jennifer G. Sambrook,Jennifer G. Sambrook,Jeremy D. Sanderson,Helen Schuilenburg,Carol Scott,Richard T. Scott,Sheila Seal,Sue Shaw-Hawkins,Beverley M. Shields,Matthew J. Simmonds,Debbie J. Smyth,Elilan Somaskantharajah,Katarina Spanova,Sophia Steer,Jonathan Stephens,Jonathan Stephens,Helen Stevens,Millicent A. Stone,Millicent A. Stone,Zhan Su,Deborah P M Symmons,John R. Thompson,Wendy Thomson,Mary E. Travers,Clare Turnbull,Armand Valsesia,Mark Walker,Neil Walker,Chris Wallace,Margaret Warren-Perry,Nicholas A. Watkins,Nicholas A. Watkins,John Webster,Michael N. Weedon,Anthony G. Wilson,Matthew Woodburn,B. Paul Wordsworth,Allan H. Young,Allan H. Young,Eleftheria Zeggini,Eleftheria Zeggini,Nigel P. Carter,Timothy M. Frayling,Charles Lee,Gil McVean,Patricia B. Munroe,Aarno Palotie,Stephen Sawcer,Stephen W. Scherer,David P. Strachan,Chris Tyler-Smith,Matthew A. Brown,Matthew A. Brown,Paul Burton,Mark J. Caulfield,Alastair Compston,Martin Farrall,Stephen C. L. Gough,Stephen C. L. Gough,Alistair S. Hall,Andrew T. Hattersley,Adrian V. S. Hill,Christopher G. Mathew,Marcus Pembrey,Jack Satsangi,Michael R. Stratton,Jane Worthington,Panos Deloukas,Audrey Duncanson,Dominic P. Kwiatkowski,Dominic P. Kwiatkowski,Mark I. McCarthy,Willem H. Ouwehand,Willem H. Ouwehand,Willem H. Ouwehand,Miles Parkes,Nazneen Rahman,John A. Todd,Nilesh J. Samani,Nilesh J. Samani,Peter Donnelly +235 more
TL;DR: A large, direct genome-wide study of association between CNVs and eight common human diseases concludes that common CNVs that can be typed on existing platforms are unlikely to contribute greatly to the genetic basis ofcommon human diseases.
Journal ArticleDOI
Large-Scale Association Studies of Variants in Genes Encoding the Pancreatic β-Cell KATP Channel Subunits Kir6.2 (KCNJ11) and SUR1 (ABCC8) Confirm That the KCNJ11 E23K Variant Is Associated With Type 2 Diabetes
Anna L. Gloyn,Michael N. Weedon,Katharine R. Owen,Martina Turner,Bridget A. Knight,Graham A. Hitman,Mark Walker,Jonathan C. Levy,Mike Sampson,Stephanie Halford,Mark I. McCarthy,Andrew T. Hattersley,Timothy M. Frayling +12 more
TL;DR: The results confirm that E23K increases risk of type 2 diabetes and show that large-scale association studies are important for the identification of diabetes susceptibility alleles.
The genetic architecture of type 2 diabetes
Christian Fuchsberger,Jason Flannick,Tanya M. Teslovich,Anubha Mahajan,Vineeta Agarwala,Kyle J. Gaulton,Clement Ma,Pierre Fontanillas,Loukas Moutsianas,Davis J. McCarthy,Manuel A. Rivas,John R. B. Perry,Xueling Sim,Thomas W. Blackwell,Neil Robertson,N. William Rayner,Pablo Cingolani,Adam E. Locke,Juan Fernandez Tajes,Heather M. Highland,Josée Dupuis,Peter S. Chines,Cecilia M. Lindgren,Christopher Hartl,Anne U. Jackson,Han Chen,Jeroen R. Huyghe,Martijn van de Bunt,Richard D. Pearson,Ashok Kumar,Martina Mueller-Nurasyid,Niels Grarup,Heather M. Stringham,Eric R. Gamazon,Jae-Hoon Lee,Yi Chen,Robert A. Scott,Jennifer E. Below,Peng Chen,Jinyan Huang,Min Jin Go,Michael L. Stitzel,Dorota Pasko,Stephen C. J. Parker,Tibor V. Varga,Todd Green,Nicola L. Beer,Aaron G. Day-Williams,Teresa Ferreira,Tasha E. Fingerlin,Momoko Horikoshi,Cheng Hu,Iksoo Huh,Mohammad Kamran Ikram,Bong-Jo Kim,Yongkang Kim,Young-Jin Kim,Min-Seok Kwon,Juyoung Lee,Selyeong Lee,Keng-Han Lin,Taylor J. Maxwell,Yoshihiko Nagai,Xu Wang,Ryan P. Welch,Joon Yoon,Weihua Zhang,Nir Barzilai,Benjamin F. Voight,Bok-Ghee Han,Christopher P. Jenkinson,Teemu Kuulasmaa,Johanna Kuusisto,Alisa K. Manning,Maggie C.Y. Ng,Nicholette D. Palmer,Beverley Balkau,Alena Stančáková,Hanna E. Abboud,Heiner Boeing,Vilmantas Giedraitis,Dorairaj Prabhakaran,Omri Gottesman,James Scott,Jason Carey,Phoenix Kwan,George B. Grant,Joshua D. Smith,Benjamin M. Neale,Shaun Purcell,Adam S. Butterworth,Joanna M. M. Howson,Heung Man Lee,Yingchang Lu,Soo Heon Kwak,Wei Zhao,John Danesh,Vincent K. L. Lam,Kyong Soo Park,Danish Saleheen,Wing-Yee So,Claudia H. T. Tam,Uzma Afzal,David Aguilar,Rector Arya,Tin Aung,Edmund Chan,Carmen Navarro,Ching-Yu Cheng,Domenico Palli,Adolfo Correa,Joanne E. Curran,Denis Rybin,Vidya S. Farook,Sharon P. Fowler,Barry I. Freedman,Michael Griswold,Daniel E. Hale,Pamela J. Hicks,Chiea Chuen Khor,Satish Kumar,Benjamin Lehne,Dorothée Thuillier,Wei-Yen Lim,Jianjun Liu,Yvonne T. van der Schouw,Marie Loh,Solomon K. Musani,Sobha Puppala,William R. Scott,Loic Yengo,Sian-Tsung Tan,Herman A. Taylor,Farook Thameem,Gregory P. Wilson,Tien Yin Wong,Pål R. Njølstad,Jonathan C. Levy,Massimo Mangino,Lori L. Bonnycastle,Thomas Schwarzmayr,João Fadista,Gabriela L. Surdulescu,Christian Herder,Christopher J. Groves,Thomas Wieland,Jette Bork-Jensen,Ivan Brandslund,Cramer Christensen,Heikki A. Koistinen,Alex S. F. Doney,Leena Kinnunen,Tõnu Esko,Andrew Farmer,Liisa Hakaste,Dylan Hodgkiss,Jasmina Kravic,Valeriya Lyssenko,Mette Hollensted,Marit E. Jørgensen,Torben Jørgensen,Claes Ladenvall,Johanne Marie Justesen,Annemari Käräjämäki,Jennifer Kriebel,Wolfgang Rathmann,Lars Lannfelt,Torsten Lauritzen,Narisu Narisu,Allan Linneberg,Olle Melander,Lili Milani,Matt Neville,Marju Orho-Melander,Lu Qi,Qibin Qi,Michael Roden,Olov Rolandsson,Amy J. Swift,Anders Rosengren,Kathleen Stirrups,Andrew R. Wood,Evelin Mihailov,Christine Blancher,Mauricio O. Carneiro,Jared Maguire,Ryan Poplin,Khalid Shakir,Timothy R. Fennell,Mark A. DePristo,Martin Hrabé de Angelis,Panos Deloukas,Anette P. Gjesing,Goo Jun,Peter M. Nilsson,Jacquelyn Murphy,Robert C. Onofrio,Barbara Thorand,Torben Hansen,Christa Meisinger,Frank B. Hu,Bo Isomaa,Fredrik Karpe,Liming Liang,Annette Peters,Cornelia Huth,Stephen O'Rahilly,Colin N. A. Palmer,Oluf Pedersen,Rainer Rauramaa,Jaakko Tuomilehto,Veikko Salomaa,Richard M. Watanabe,Ann-Christine Syvänen,Richard N. Bergman,Dwaipayan Bharadwaj,Erwin P. Bottinger,Yoon Shin Cho,Giriraj R. Chandak,Juliana C.N. Chan,Kee Seng Chia,Mark J. Daly,Shah Ebrahim,Claudia Langenberg,Paul Elliott,Kathleen A. Jablonski,Donna M. Lehman,Weiping Jia,Ronald C.W. Ma,Toni I. Pollin,Manjinder S. Sandhu,Nikhil Tandon,Philippe Froguel,Inês Barroso,Yik Ying Teo,Eleftheria Zeggini,Ruth J. F. Loos,Kerrin S. Small,Janina S. Ried,Ralph A. DeFronzo,Harald Grallert,Benjamin Glaser,Andres Metspalu,Nicholas J. Wareham,Mark Walker,Eric Banks,Christian Gieger,Erik Ingelsson,Hae Kyung Im,Thomas Illig,Paul W. Franks,Gemma Buck,Joseph Trakalo,David Buck,Inga Prokopenko,Reedik Mägi,Lars Lind,Yossi Farjoun,Katharine R. Owen,Anna L. Gloyn,Konstantin Strauch,Tiinamaija Tuomi,Jaspal S. Kooner,Jong-Young Lee,Taesung Park,Peter Donnelly,Andrew D. Morris,Andrew T. Hattersley,Donald W. Bowden,Francis S. Collins,Gil Atzmon,John C. Chambers,Tim D. Spector,Markku Laakso,Tim M. Strom,Graeme I. Bell,John Blangero,Ravindranath Duggirala,E. Shyong Tai,Gilean McVean,Craig L. Hanis,James G. Wilson,Mark Seielstad,Timothy M. Frayling,James B. Meigs,Nancy J. Cox,Robert Sladek,Eric S. Lander,Stacey Gabriel,Noël P. Burtt,Karen L. Mohlke,Thomas Meitinger,Leif Groop,Gonçalo R. Abecasis,Jose C. Florez,Laura J. Scott,Andrew P. Morris,Hyun Min Kang,Michael Boehnke,David Altshuler,Mark I. McCarthy +300 more
TL;DR: Large-scale sequencing does not support the idea that lower-frequency variants have a major role in predisposition to type 2 diabetes, but most fell within regions previously identified by genome-wide association studies.
Journal ArticleDOI
Genetic variation in GIPR influences the glucose and insulin responses to an oral glucose challenge
Richa Saxena,Richa Saxena,Claudia Langenberg,Toshiko Tanaka,Toshiko Tanaka,James S. Pankow,Peter Vollenweider,Valeriya Lyssenko,Nabila Bouatia-Naji,Josée Dupuis,Anne U. Jackson,W. H. Linda Kao,Man Li,Nicole L. Glazer,Alisa K. Manning,Jian Anluan,Heather M. Stringham,Inga Prokopenko,Toby Johnson,Niels Grarup,Trine Welløv Boesgaard,Cécile Lecoeur,Peter Shrader,Jeffrey R. O'Connell,Erik Ingelsson,Erik Ingelsson,David Couper,Kenneth Rice,Kijoung Song,Camilla H. Andreasen,Christian Dina,Anna Köttgen,Olivier Le Bacquer,François Pattou,Jalal Taneera,Valgerdur Steinthorsdottir,Denis Rybin,Kristin Ardlie,Mike Sampson,Lu Qi,Mandy van Hoek,Michael N. Weedon,Yurii S. Aulchenko,Benjamin F. Voight,Benjamin F. Voight,Harald Grallert,Beverley Balkau,Richard N. Bergman,Suzette J. Bielinski,Amélie Bonnefond,Lori L. Bonnycastle,Knut Borch-Johnsen,Yvonne Böttcher,Eric J. Brunner,Thomas A. Buchanan,Suzannah Bumpstead,Christine Cavalcanti-Proença,Guillaume Charpentier,Yii-Der Ida Chen,Peter S. Chines,Francis S. Collins,Marilyn C. Cornelis,Gabriel Crawford,Jérôme Delplanque,Alex S. F. Doney,Josephine M. Egan,Michael R. Erdos,Mathieu Firmann,Nita G. Forouhi,Caroline S. Fox,Caroline S. Fox,Mark O. Goodarzi,J. Graessler,Aroon D. Hingorani,Bo Isomaa,Torben Jørgensen,Mika Kivimäki,Peter Kovacs,Knut Krohn,Meena Kumari,Torsten Lauritzen,Claire Levy-Marchal,Vladimir Mayor,Jarred B. McAteer,Jarred B. McAteer,David Meyre,Braxton D. Mitchell,Karen L. Mohlke,Mario A. Morken,Narisu Narisu,Colin N. Apalmer,Ruth E. Pakyz,Laura Pascoe,Felicity Payne,Daniel S. Pearson,Wolfgang Rathmann,Annelli Sandbæk,Avan Aihie Sayer,Laura J. Scott,Stephen J. Sharp,Eric J.G. Sijbrands,Andrew B. Singleton,David S. Siscovick,Nicholas L. Smith,Nicholas L. Smith,Thomas Sparsø,Amy J. Swift,Holly E. Syddall,Gudmar Thorleifsson,Anke Tönjes,Anke Tönjes,Tiinamaija Tuomi,Jaakko Tuomilehto,Valle Tt,Gerard Waeber,Andrew Walley,Dawn M. Waterworth,Eleftheria Zeggini,Jing Hua Zhao,Thomas Illig,H.-Erich Wichmann,H.-Erich Wichmann,James F. Wilson,Cornelia M. van Duijn,Frank B. Hu,Frank B. Hu,Andrew D. Morris,Timothy M. Frayling,Timothy M. Frayling,Andrew T. Hattersley,Andrew T. Hattersley,Unnur Thorsteinsdottir,Unnur Thorsteinsdottir,Kari Stefansson,Kari Stefansson,Peter M. Nilsson,Ann-Christine Syvänen,Alan R. Shuldiner,Alan R. Shuldiner,Mark Walker,Stefan R. Bornstein,Peter Schwarz,Gordon H. Williams,David M. Nathan,Johanna Kuusisto,Markku Laakso,Cyrus Cooper,Michael Marmot,Luigi Ferrucci,Vincent Mooser,Michael Stumvoll,Ruth J. F. Loos,David Altshuler,David Altshuler,Bruce M. Psaty,Jerome I. Rotter,Eric Boerwinkle,Torben Hansen,Torben Hansen,Oluf Pedersen,Oluf Pedersen,Jose C. Florez,Jose C. Florez,Mark I. McCarthy,Mark I. McCarthy,Michael Boehnke,Inês Barroso,Robert Sladek,Philippe Froguel,Philippe Froguel,James B. Meigs,Leif Groop,Nicholas J. Wareham,Richard M. Watanabe +173 more
TL;DR: A meta-analysis of nine genome-wide association studies and a follow-up of 29 independent loci found three newly implicated loci to be associated with type 2 diabetes: GIPR, ADCY5 and VPS13C.