Search

Your search keyword '"Cummings FR"' showing total 20 results
Start Over Author "Cummings FR"
20 results on '"Cummings FR"'

1. Association of Genetic Variants in NUDT15 With Thiopurine-Induced Myelosuppression in Patients With Inflammatory Bowel Disease

Author

Walker, GJ, Harrison, JW, Heap, GA, Voskuil, MD, Andersen, V, Anderson, CA, Ananthakrishnan, AN, Barrett, JC, Beaugerie, L, Bewshea, CM, Cole, AT, Cummings, FR, Daly, MJ, Ellul, P, Fedorak, RN, Festen, EAM, Florin, TH, Gaya, DR, Halfvarson, J, Hart, AL, Heerasing, NM, Hendy, P, Irving, PM, Jones, SE, Koskela, J, Lindsay, JO, Mansfield, JC, McGovern, D, Parkes, M, Pollok, RCG, Ramakrishnan, S, Rampton, DS, Rivas, MA, Russell, RK, Schultz, M, Sebastian, S, Seksik, P, Singh, A, So, K, Sokol, H, Subramaniam, K, Todd, A, Annese, V, Weersma, RK, Xavier, R, Ward, R, Weedon, MN, Goodhand, JR, Kennedy, NA, Ahmad, T, Holden, AL, Andrews, J, Auth, M, Babu, S, Bampton, P, Banim, P, Barnes, T, Basude, D, Beckly, J, Bell, A, Bell, S, Bhandari, P, Bloom, S, Border, D, Bredin, F, Brookes, MJ, Brown, M, Calvert, C, Campbell, D, Chanchlani, N, Chaudhary, B, Chaudhary, R, Chung-Faye, G, Colleypriest, B, Connor, S, Cooney, R, Cooper, S, Creed, TJ, Croft, N, Cullen, S, D'Amato, M, Dalal, H, Daneshmend, TK, Das, D, Delaney, M, Desilva, S, Dhar, A, Dharmasiri, S, Direkze, N, Dunckley, P, Elphick, D, Everett, SM, Feeney, M, Fell, J, Foley, S, Franke, A, Gavin, D, Gee, I, Ghosh, D, Goldsmith, C, Gorard, D, Gordon, JN, Gore, S, Green, J, Grimes, D, Hamill, G, Harbord, M, Hart, J, Hawkey, C, Iqbal, T, Ireland, A, Johnson, M, Jones, C, Kanegasundaram, S, Karban, A, Katsanos, KH, Kiparissi, F, Kirkham, S, Lal, S, Langlands, S, Lawrance, IC, Lees, CW, Lev-Tzion, R, Levison, S, Lewis, SJ, Li, A, Limdi, J, Lin, S, Lobo, A, Lockett, M, Loehry, J, MacDonald, C, MacFaul, G, Mahmood, T, Mann, S, Mawdsley, J, Mazhar, Z, McGovern, JF, McNair, A, Modi, A, Monahan, K, Moran, A, Morris, M-A, Mortimore, M, Mowat, C, Muhammed, R, Murray, CDR, Olivier, H, Orchard, TR, Panter, S, Patel, V, Phillips, R, Prasad, N, Preston, C, Radford-Smith, G, Rajasekhar, P, Roy, D, Saich, R, Satsangi, J, Schreiber, S, Sen, S, Shah, N, Shenderay, R, Shenoy, A, Shutt, J, Silverberg, M, Simmons, A, Simmons, J, Singh, S, Smith, M, Snook, JA, Sonwalker, S, Stevens, CR, Sturniolo, G, Subramanian, S, Thomas, A, Tighe, M, Torrente, F, Tremelling, M, Tsianos, E, Vani, D, Walsh, A, Watermeyer, G, Watts, D, Watts, G, Weaver, S, Wesley, E, Willmott, A, Yearsley, K, Zambar, V, Zeissig, S, University of Helsinki, Broad Institute, University of Helsinki, Complex Disease Genetics, Institute for Molecular Medicine Finland, Groningen Institute for Gastro Intestinal Genetics and Immunology (3GI), and Simmons, A

Subjects
Male, PREDICTOR, AZATHIOPRINE, Azathioprine, Genome-wide association study, CHILDREN, S-METHYLTRANSFERASE, SUSCEPTIBILITY, Gastroenterology, THERAPY, Leukocyte Count, 0302 clinical medicine, Crohn Disease, Interquartile range, Medicine, Exome, Pyrophosphatases, 11 Medical and Health Sciences, 0303 health sciences, Thiopurine methyltransferase, biology, IBD Pharmacogenetics Study Group, General Medicine, 3. Good health, Editorial Commentary, Cohort, 030211 gastroenterology & hepatology, Female, Life Sciences & Biomedicine, medicine.drug, Adult, medicine.medical_specialty, Adolescent, MERCAPTOPURINE INTOLERANCE, European Continental Ancestry Group, 3121 Internal medicine, Polymorphism, Single Nucleotide, White People, 03 medical and health sciences, Young Adult, Medicine, General & Internal, Internal medicine, General & Internal Medicine, MANAGEMENT, Humans, POLYMORPHISMS, 030304 developmental biology, ACUTE LYMPHOBLASTIC-LEUKEMIA, Science & Technology, business.industry, Case-control study, Odds ratio, Methyltransferases, Sequence Analysis, DNA, Haplotypes, 3121 General medicine, internal medicine and other clinical medicine, Case-Control Studies, biology.protein, Colitis, Ulcerative, business, Pharmacogenetics, Genome-Wide Association Study
Abstract

Funding Information: reported serving as a consultant for AbbVie UK; receiving honoraria from Falk and AbbVie UK; receiving grants from Crohn’s & Colitis UK and Tillott’s Pharmaceuticals; having a fellowship from the UK National Institute for Health Research; and receiving travel reimbursement from Merck Sharp & Dohme and Norgine. Dr Heap reported receiving travel reimbursement from AbbVie; and being a current employee of AbbVie and owning stock in the company. Dr Andersen reported receiving personal fees from Merck Sharp & Dohme and Janssen. Dr Ananthakrishnan reported receiving a grant from Pfizer; and receiving personal fees from Takeda. Dr Beaugerie reported receiving advisory board fees from Allergan, Janssen, and Pfizer; receiving a grant from Hospira; and receiving grants and honoraria from AbbVie, Merck Sharp & Dohme, Ferring, Takeda, and Tillott’s Pharmaceuticals. Dr Cummings reported receiving personal fees from AbbVie, Takeda, Biogen, Janssen, Merck Sharp & Dohme, Amgen, Hakim Pharmaceuticals, and Pfizer/Hospira; and receiving grants from Takeda, Biogen, AstraZeneca, and Pfizer/Hospira. Dr Halfvarson reported receiving personal fees from AbbVie, Hospira, Janssen, Medivir, Merck Sharp & Dohme, Pfizer, RenapharmaVifor, Takeda, Tillott’s Pharmaceuticals, Celgene, Sandoz, and Shire; and receiving grants from Janssen, Merck Sharp & Dohme, and Takeda. Dr Hart reported receiving advisory board fees from AbbVie, Atlantic, Bristol-Myers Squibb, Celltrion, Janssen, Merck Sharp & Dohme, Pfizer, Shire, and Takeda; receiving honoraria from Falk and Ferring; and receiving a grant from Takeda. Dr Irving reported receiving personal fees from Janssen, AbbVie, Takeda, Ferring, Pfizer, Lilly, Merck Sharp & Dohme, Samsung, and Sandoz; and receiving grants from Takeda and Merck Sharp & Dohme. Dr Lindsay reported receiving advisory board fees from Atlantic Health, AbbVie UK/global, Merck Sharp & Dohme, Shire UK, Vifor Pharma, Ferring International, Celltrion, Takeda, Napp, Pfizer, and Janssen; serving as a consultant for AbbVie UK/global, Takeda, and Pfizer; receiving grants from Shire UK, AbbVie UK/global, Warner Chilcott, Funding Information: Takeda, Hospira, Ferring International, and Merck Sharp & Dohme; receiving honoraria from Takeda, Cornerstones US, Tillott’s Pharmaceuticals, Napp, Shire International, Janssen, AbbVie, and Pfizer; and receiving travel reimbursement from AbbVie UK, Merck Sharp & Dohme, Warner Chilcott, Takeda, and Shire International. Dr McGovern reported receiving grants from the National Institutes of Health, Helmsley Charitable Trust, and Janssen; and serving as a consultant for Pfizer, Q Biologics, Cidara, Gilead, and Janssen. Dr Seksik reported receiving advisory board fees from Astellas; receiving honoraria from Takeda, AbbVie, and Ferring; and receiving grants from Merck Sharp & Dohme and Biocodex. Dr Sokol reported receiving grants from Biocodex, Danone, and BiomX; serving as a consultant for Enterome, Takeda, AbbVie, Roche, Amgen, Danone, BiomX, Ferring, Bristol-Myers Squibb, Astellas, Merck Sharp & Dohme, Novartis, Tillott’s Pharmaceuticals, and Biose; and being the co-founder of Nextbiotix. Dr Annese reported receiving advisory board fees from Takeda, AbbVie, and Medtronic; and receiving honoraria from Janssen, Takeda, AbbVie, and Medtronic. Dr Weersma reported receiving grants from Takeda, Ferring, and Tramedico; and receiving personal fees from AbbVie. Dr Goodhand reported receiving honoraria from Falk, AbbVie, and Shield Therapeutics. Dr Kennedy reported serving as a consultant for Falk; receiving honoraria from Falk, Allergan, Pharmacosmos, and Takeda; and being a deputy editor of Alimentary Pharmacology & Therapeutics. Dr Ahmad reported receiving unrestricted grants, advisory board fees, speaker honoraria, and support to attend international meetings from AbbVie, Merck Sharp & Dohme, Janssen, Takeda, Ferring, Tillott’s Pharmaceuticals, Ferring, Pfizer, Napp, Celltrion, and Hospira. No other disclosures were reported. Funding Information: Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, California), Alistair McNair, PhD (Queen Elizabeth Hospital, London, UK), Anita Modi, MD (Luton and Dunstable University Hospital, Luton, UK), Kevin Monahan, PhD (West Middlesex University Hospital, Middlesex, UK), Alex Moran, MD (Northern Devon Healthcare Trust, Barnstaple, UK), Mary-Anne Morris, MD (Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK), Marianne Mortimore, MBBS (Mater Research Institute, University of Queensland, South Brisbane, Australia), Craig Mowat, MD (Ninewells Hospital, NHS Tayside, Dundee, UK), Rafeeq Muhammed, MD (Birmingham Children's Hospital, Birmingham, UK), Charles D. R. Murray, PhD (Royal Free Hospital, Royal Free London NHS Foundation Trust, London, UK), Hanlie Olivier (IBD Pharmacogenetics Group, University of Exeter, Exeter, UK), Timothy R. Orchard, DM (Imperial College Healthcare NHS Trust, London, UK), Simon Panter, MD (South Tyneside District Hospital, South Tyneside, UK), Vinod Patel, MBBS (Tameside and Glossop Integrated Care NHS Foundation Trust, Ashton-under-Lyne, UK), Rosemary Phillips, MD (Princess Alexandra Hospital, Essex, UK), Neeraj Prasad, MSc (Wrightington Hospital, Wrightington, UK), Cathryn Preston, MBChB (Bradford Royal Infirmary, Bradford, UK), Graham Radford-Smith, PhD (Royal Brisbane and Women’s Hospital, Brisbane, Australia), Praveen Rajasekhar, MD (Northumbria NHS Trust, Tyne and Wear, UK), Dipak Roy, PhD (Tameside and Glossop Integrated Care NHS Foundation Trust, Ashton-under-Lyne, UK), Rebecca Saich, PhD (Basingstoke and North Hampshire Hospital, Basingstoke, UK), Jack Satsangi, PhD (Western General Hospital, NHS Lothian, Edinburgh, UK), Stefan Schreiber, PhD (Kiel University, Kiel, Germany), Sandip Sen, MD (Royal Stoke University Hospital, Stoke-on-Trent, UK), Neil Shah, MD (Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK), Richard Shenderay, MBBS (Airedale NHS Foundation Trust, Keighley, UK), Acuth Shenoy, MD (Colchester Hospital University NHS Foundation Trust, Colchester, UK), James Shutt, DM (Dorset County Hospital NHS Foundation Trust, Dorchester, UK), Mark Silverberg, PhD (Mount Sinai Hospital, Toronto, Ontario, Canada), Alison Simmons, PhD (Oxford University Hospitals, Oxford, UK), Jonathan Simmons, DM (Royal Berkshire Hospital, Royal Berkshire NHS Foundation Trust, Reading, UK), Salil Singh, PhD (Bolton NHS Foundation Trust, Bolton, UK), Malcolm Smith, MBChB (Aberdeen Royal Infirmary, Aberdeen, UK), Mark Smith, MD (Shrewsbury and Telford Hospital NHS Trust, Shrewsbury, UK), Melissa Smith, MB (Royal Sussex County Hospital, Brighton, UK), Jonathon A. Snook, DPhil (Poole Hospital NHS Foundation Trust, Poole, UK), Sunil Sonwalker, MD (Calderdale Royal Hospital, Halifax, UK), Christine R. Stevens, PhD (Broad Institute, Harvard University, Cambridge, Massachusetts), Giacomo Sturniolo, PhD (Univerita di Padova, Padova, Italy), Sreedhar Subramanian, MD (Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK), Amanda Thomas, MBBS (Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, UK), Mark Tighe, BM (Poole Hospital NHS Foundation Trust, Poole, UK), Franco Torrente, MD (Department of Gastroenterology, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK), Mark Tremelling, MD (Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK), Epameinondas Tsianos, PhD (University Hospital of Ioannina, Ioannina, Greece), Deven Vani, MD (Mid Yorkshire Hospitals NHS Trust, Wakefield, UK), Alissa Walsh, MBBS (St Vincent’s Hospital, Sydney, Australia), Gillian Watermeyer, MBChB (Groote Schuur Hospital, Cape Town, South Africa), David Watts, MBChB (Forth Valley Royal Hospital, Larbert, UK), Gill Watts, MD (Wythenshawe Hospital, South Manchester, UK), Sean Weaver, PhD (Royal Bournemouth General Hospital, Bournemouth, UK), Emma Wesley, MBBS (Musgrove Park Hospital, Taunton and Somerset NHS Hospitals, Taunton, UK), Anne Willmott, MBChB (Leicester Royal Infirmary-Paediatric, Leicester, UK), Karen Yearsley, BM (Nevill Hall Hospital, Abergavenny, UK), Veena Zambar, MBBS (Leeds General Infirmary, Leeds, UK), and Sebastian Zeissig, MD (University Medical Center Schleswig-Hostein, Kiel, Germany). These individuals identified and recruited patient s to the study and provided comments on a draft of the manuscript. Funding Information: Adverse Events Consortium funded the sample collection and genotyping at the Broad Institute. The UK National Institute for Health Research provided research nurse support to facilitate recruitment at all UK research sites. Crohn’s & Colitis UK and forCrohns provided funding support and publicized this study to their members. The Exeter National Institute for Health Research Clinical Research Facility provided DNA storage and management. Institutional strategic support award WT097835MF from Wellcome Trust supported the management of the study. Samples from Cedars-Sinai were collected and processed through the MIRIAD biobank that was funded by grant P01DK046763 from the National Institutes of Health. Publisher Copyright: © 2019 American Medical Association. All rights reserved. IMPORTANCE Use of thiopurines may be limited by myelosuppression. TPMT pharmacogenetic testing identifies only 25% of at-risk patients of European ancestry. Among patients of East Asian ancestry, NUDT15 variants are associated with thiopurine-induced myelosuppression (TIM). OBJECTIVE To identify genetic variants associated with TIM among patients of European ancestry with inflammatory bowel disease (IBD). DESIGN, SETTING, AND PARTICIPANTS Case-control study of 491 patients affected by TIM and 679 thiopurine-tolerant unaffected patients who were recruited from 89 international sites between March 2012 and November 2015. Genome-wide association studies (GWAS) and exome-wide association studies (EWAS) were conducted in patients of European ancestry. The replication cohort comprised 73 patients affected by TIM and 840 thiopurine-tolerant unaffected patients. EXPOSURES Genetic variants associated with TIM. MAIN OUTCOMES AND MEASURES Thiopurine-induced myelosuppression, defined as a decline in absolute white blood cell count to 2.5 x 10(9)/L or less or a decline in absolute neutrophil cell count to 1.0 x 10(9)/L or less leading to a dose reduction or drug withdrawal. RESULTS Among 1077 patients (398 affected and 679 unaffected; median age at IBD diagnosis, 31.0 years [interquartile range, 21.2 to 44.1 years]; 540 [50%] women; 602 [56%] diagnosed as having Crohn disease), 919 (311 affected and 608 unaffected) were included in the GWAS analysis and 961 (328 affected and 633 unaffected) in the EWAS analysis. The GWAS analysis confirmed association of TPMT (chromosome 6, rs11969064) with TIM (30.5% [95/311] affected vs 16.4% [100/608] unaffected patients; odds ratio [OR], 2.3 [95% CI, 1.7 to 3.1], P = 5.2 x 10(-9)). The EWAS analysis demonstrated an association with an in-frame deletion in NUDT15 (chromosome 13, rs746071566) and TIM (5.8% [19/328] affected vs 0.2% [1/633] unaffected patients; OR, 38.2 [95% CI, 5.1 to 286.1], P = 1.3 x 10(-8)), which was replicated in a different cohort (2.7% [2/73] affected vs 0.2% [2/840] unaffected patients; OR, 11.8 [95% CI, 1.6 to 85.0], P = .03). Carriage of any of 3 coding NUDT15 variants was associated with an increased risk (OR, 27.3 [95% CI, 9.3 to 116.7], P = 1.1 x 10(-7)) of TIM, independent of TPMT genotype and thiopurine dose. CONCLUSIONS AND RELEVANCE Among patients of European ancestry with IBD, variants in NUDT15 were associated with increased risk of TIM. These findings suggest that NUDT15 genotyping may be considered prior to initiation of thiopurine therapy; however, further study including additional validation in independent cohorts is required.

Published
2019

2. HLA-DQA1–HLA-DRB1 variants confer susceptibility to pancreatitis induced by thiopurine immunosuppressants

Author

Heap, Ga, Weedon, Mn, Bewshea, Cm, Singh, A, Chen, M, Satchwell, Jb, Vivian, Jp, So, K, Dubois, Pc, Andrews, Jm, Annese, V, Bampton, P, Barnardo, M, Bell, S, Cole, A, Connor, Sj, Creed, T, Cummings, Fr, D'Amato, M, Daneshmend, Tk, Fedorak, Rn, Florin, Th, Gaya, Dr, Greig, E, Halfvarson, J, Hart, A, Irving, Pm, Jones, G, Karban, A, Lawrance, Ic, Lee, Jc, Lees, C, Lev Tzion, R, Lindsay, Jo, Mansfield, J, Mawdsley, J, Mazhar, Z, Parkes, M, Parnell, K, Orchard, Tr, Radford Smith, G, Russell, Rk, Reffitt, D, Satsangi, J, Silverberg, Ms, Sturniolo, Giacomo, Tremelling, M, Tsianos, Ev, van Heel DA, Walsh, A, Watermeyer, G, Weersma, Rk, Zeissig, S, Rossjohn, J, Holden, Al, Ahmad, T, International Serious Adverse Events Consortium, IBD Pharmacogenetics Study Group, and Groningen Institute for Gastro Intestinal Genetics and Immunology (3GI)

Subjects
Models, Molecular, Genotype, Population, Genome-wide association study, Azathioprine, THERAPY, Polymorphism, Single Nucleotide, HLA-DQ alpha-Chains, Article, Gene Frequency, Risk Factors, Genetics, medicine, Humans, Genetic Predisposition to Disease, GENOME-WIDE ASSOCIATION, education, HLA-DRB1, HYPERSENSITIVITY, POPULATION, education.field_of_study, Molecular Structure, Thiopurine methyltransferase, biology, Mercaptopurine, COMPLICATION, Odds ratio, Inflammatory Bowel Diseases, medicine.disease, CROHNS-DISEASE, Protein Structure, Tertiary, Haplotypes, Pancreatitis, INFLAMMATORY-BOWEL-DISEASE, GENOME-WIDE ASSOCIATION, CROHNS-DISEASE, THERAPY, HYPERSENSITIVITY, AZATHIOPRINE, COMPLICATION, POPULATION, GENOTYPE, Immunology, biology.protein, Immunosuppressive Agents, INFLAMMATORY-BOWEL-DISEASE, Genome-Wide Association Study, HLA-DRB1 Chains, Protein Binding, medicine.drug
Abstract

Pancreatitis occurs in approximately 4% of patients treated with the thiopurines azathioprine or mercaptopurine. Its development is unpredictable and almost always leads to drug withdrawal. We identified patients with inflammatory bowel disease (IBD) who had developed pancreatitis within 3 months of starting these drugs from 168 sites around the world. After detailed case adjudication, we performed a genome-wide association study on 172 cases and 2,035 controls with IBD. We identified strong evidence of association within the class II HLA region, with the most significant association identified at rs2647087 (odds ratio 2.59, 95% confidence interval 2.07-3.26, P = 2 x 10(-16)). We replicated these findings in an independent set of 78 cases and 472 controls with IBD matched for drug exposure. Fine mapping of the H LA region identified association with the HLA-DQA1*02:01-HLA-DRB1*07:01 haplotype. Patients heterozygous at rs2647087 have a 9% risk of developing pancreatitis after administration of a thiopurine, whereas homozygotes have a 17% risk.

Published
2014
Full Text
View/download PDF

3. Association scan of 14,500 nonsynonymous SNPs in four diseases identifies autoimmunity variants

Author

Burton, PR, Clayton, DG, Cardon, LR, Craddock, N, Deloukas, P, Duncanson, A, Kwiatkowski, DP, McCarthy, MI, Ouwehand, WH, Samani, NJ, Todd, JA, Donnelly, P, Barrett, JC, Davison, D, Easton, D, Evans, DM, Leung, HT, Marchini, JL, Morris, AP, Spencer, CC, Tobin, MD, Attwood, AP, Boorman, JP, Cant, B, Everson, U, Hussey, JM, Jolley, JD, Knight, AS, Koch, K, Meech, E, Nutland, S, Prowse, CV, Stevens, HE, Taylor, NC, Walters, GR, Walker, NM, Watkins, NA, Winzer, T, Jones, RW, McArdle, WL, Ring, SM, Strachan, DP, Pembrey, M, Breen, G, St Clair, D, Caesar, S, Gordon-Smith, K, Jones, L, Fraser, C, Green, EK, Grozeva, D, Hamshere, ML, Holmans, PA, Jones, IR, Kirov, G, Moskivina, V, Nikolov, I, O'Donovan, MC, Owen, MJ, Collier, DA, Elkin, A, Farmer, A, Williamson, R, McGuffin, P, Young, AH, Ferrier, IN, Ball, SG, Balmforth, AJ, Barrett, JH, Bishop, TD, Iles, MM, Maqbool, A, Yuldasheva, N, Hall, AS, Braund, PS, Dixon, RJ, Mangino, M, Stevens, S, Thompson, JR, Bredin, F, Tremelling, M, Parkes, M, Drummond, H, Lees, CW, Nimmo, ER, Satsangi, J, Fisher, SA, Forbes, A, Lewis, CM, Onnie, CM, Prescott, NJ, Sanderson, J, Matthew, CG, Barbour, J, Mohiuddin, MK, Todhunter, CE, Mansfield, JC, Ahmad, T, Cummings, FR, Jewell, DP, Webster, J, Brown, MJ, Lathrop, MG, Connell, J, Dominiczak, A, Marcano, CA, Burke, B, Dobson, R, Gungadoo, J, Lee, KL, Munroe, PB, Newhouse, SJ, Onipinla, A, Wallace, C, Xue, M, Caulfield, M, Farrall, M, Barton, A, Bruce, IN, Donovan, H, Eyre, S, Gilbert, PD, Hilder, SL, Hinks, AM, John, SL, Potter, C, Silman, AJ, Symmons, DP, Thomson, W, Worthington, J, Dunger, DB, Widmer, B, Frayling, TM, Freathy, RM, Lango, H, Perry, JR, Shields, BM, Weedon, MN, Hattersley, AT, Hitman, GA, Walker, M, Elliott, KS, Groves, CJ, Lindgren, CM, Rayner, NW, Timpson, NJ, Zeggini, E, Newport, M, Sirugo, G, Lyons, E, Vannberg, F, Hill, AV, Bradbury, LA, Farrar, C, Pointon, JJ, Wordsworth, P, Brown, MA, Franklyn, JA, Heward, JM, Simmonds, MJ, Gough, SC, Seal, S, Stratton, MR, Rahman, N, Ban, M, Goris, A, Sawcer, SJ, Compston, A, Conway, D, Jallow, M, Rockett, KA, Bumpstead, SJ, Chaney, A, Downes, K, Ghori, MJ, Gwilliam, R, Hunt, SE, Inouye, M, Keniry, A, King, E, McGinnis, R, Potter, S, Ravindrarajah, R, Whittaker, P, Widden, C, Withers, D, Cardin, NJ, Ferreira, T, Pereira-Gale, J, Hallgrimsdo'ttir, IB, Howie, BN, Su, Z, Teo, YY, Vukcevic, D, Bentley, D, Mitchell, SL, Newby, PR, Brand, OJ, Carr-Smith, J, Pearce, SH, Reveille, JD, Zhou, X, Sims, AM, Dowling, A, Taylor, J, Doan, T, Davis, JC, Savage, L, Ward, MM, Learch, TL, Weisman, MH, and Brown, M

Subjects
Linkage disequilibrium, Multiple Sclerosis, Genotype, Population, Single-nucleotide polymorphism, Genome-wide association study, Autoimmunity, Breast Neoplasms, Biology, medicine.disease_cause, Aminopeptidases, Polymerase Chain Reaction, Polymorphism, Single Nucleotide, Linkage Disequilibrium, Article, Minor Histocompatibility Antigens, Genetics, medicine, Humans, Spondylitis, Ankylosing, Receptors, Immunologic, education, Genetic association, education.field_of_study, Ankylosing spondylitis, Thyroiditis, Autoimmune, Chromosome Mapping, Receptors, Interleukin, medicine.disease, Endoplasmic reticulum aminopeptidase 2, Genetics, Population, Haplotypes, Case-Control Studies, Immunology, North America
Abstract

We have genotyped 14,436 nonsynonymous SNPs (nsSNPs) and 897 major histocompatibility complex (MHC) tag SNPs from 1,000 independent cases of ankylosing spondylitis (AS), autoimmune thyroid disease (AITD), multiple sclerosis (MS) and breast cancer (BC). Comparing these data against a common control dataset derived from 1,500 randomly selected healthy British individuals, we report initial association and independent replication in a North American sample of two new loci related to ankylosing spondylitis, ARTS1 and IL23R, and confirmation of the previously reported association of AITD with TSHR and FCRL3. These findings, enabled in part by increased statistical power resulting from the expansion of the control reference group to include individuals from the other disease groups, highlight notable new possibilities for autoimmune regulation and suggest that IL23R may be a common susceptibility factor for the major 'seronegative' diseases.

Published
2016
Full Text
View/download PDF

4. Identification of ADAMTS7 as a novel locus for coronary atherosclerosis and association of ABO with myocardial infarction in the presence of coronary atherosclerosis: two genome-wide association studies

Author

Reilly MP, Li M, He J, Ferguson JF, Stylianou IM, Mehta NN, Burnett MS, Devaney JM, Knouff CW, Thompson JR, Horne BD, Stewart AF, Assimes TL, Wild PS, Allayee H, Nitschke PL, Patel RS, Myocardial Infarction Genetics Consortium, Wellcome Trust Case Control Consortium, Martinelli N, Girelli D, Quyyumi AA, Anderson JL, Erdmann J, Hall AS, Schunkert H, Quertermous T, Blankenberg S, Hazen SL, Roberts R, Kathiresan S, Samani NJ, Epstein SE, Rader DJ, Qasim AN, DerOhannessian SL, Qu L, Cappola TP, Chen Z, Matthai W, Hakonarson HH, Wilensky R, Kent KM, Lindsay JM, Pichard AD, Satler L, Waksman R, Knoupf CW, Walker MC, Waterworth DM, Mosser V, Braund PS, Wright B, Balmforth AJ, Ball SG, Chen L, Wells GA, McPherson R, Lackner K, Munzel TF, Schillert A, Schnabel R, Zeller T, Ziegler A, Absher D, Hlatky MA, Iribaren C, Knowles JW, Linsel Nitschke P, König IR, Hengstenberg C, Nahrstaedt J, Peters A, Schreiber S, Wichmann E, Willenborg C, Su S, Bouzyk M, Vaccarino V, Zafari AM, Carlquist JF, Muhlestein JB, Olivieri O, Barnard J, Hartiala J, Tang WH, Burton PR, Clayton DG, Cardon LR, Craddock N, Deloukas P, Duncanson A, Kwiatkowski DP, McCarthy MI, Ouwehand WH, Todd JA, Donnelly P, Barrett JC, Davison D, Easton D, Evans DM, Leung HT, Marchini JL, Morris AP, Spencer CC, Tobin MD, Attwood AP, Boorman JP, Cant B, Everson U, Hussey JM, Jolley JD, Knight AS, Koch K, Meech E, Nutland S, Prowse CV, Stevens HE, Taylor NC, Walters GR, Walker NM, Watkins NA, Winzer T, Jones RW, McArdle WL, Ring SM, Strachan DP, Pembrey M, Breen G, St Clair D, Caesar S, Gordon Smith K, Jones L, Fraser C, Green EK, Grozeva D, Hamshere ML, Holmans PA, Jones IR, Kirov G, Moskvina V, Nikolov I, O'Donovan MC, Owen MJ, Collier DA, Elkin A, Farmer A, Williamson R, McGuffin P, Young AH, Ferrier IN, Barrett JH, Bishop DT, Iles MM, Maqbool A, Yuldasheva N, Dixon RJ, Mangino M, Stevens S, Bredin F, Tremelling M, Parkes M, Drummond H, Lees CW, Nimmo ER, Satsangi J, Fisher SA, Forbes A, Lewis CM, Onnie CM, Prescott NJ, Sanderson J, Mathew CG, Barbour J, Mohiuddin MK, Todhunter CE, Mansfield JC, Ahmad T, Cummings FR, Jewell DP, Webster J, Brown MJ, Lathrop M, Connell J, Dominiczak A, Marcano CA, Burke B, Dobson R, Gungadoo J, Lee KL, Munroe PB, Newhouse SJ, Onipinla A, Wallace C, Xue M, Caulfield M, Farrall M, Barton A, Bruce IN, Donovan H, Eyre S, Gilbert PD, Hider SL, Hinks AM, John SL, Potter C, Silman AJ, Symmons DP, Thomson W, Worthington J, Dunger DB, Widmer B, Frayling TM, Freathy RM, Lango H, Perry JR, Shields BM, Weedon MN, Hattersley AT, Hitman GA, Walker M, Elliott KS, Groves CJ, Lindgren CM, Rayner NW, Timpson NJ, Zeggini E, Newport M, Sirugo G, Lyons E, Vannberg F, Hill AV, Bradbury LA, Farrar C, Pointon JJ, Wordsworth P, Brown MA, Franklyn JA, Heward JM, Simmonds MJ, Gough SC, Seal S, Stratton MR, Rahman N, Ban M, Goris A, Sawcer SJ, Compston A, Conway D, Jallow M, Rockett KA, Bumpstead SJ, Chaney A, Downes K, Ghori MJ, Gwilliam R, Hunt SE, Inouye M, Keniry A, King E, McGinnis R, Potter S, Ravindrarajah R, Whittaker P, Widden C, Withers D, Cardin NJ, Ferreira T, Pereira Gale J, Hallgrimsdóttir IB, Bowie BN, Su Z, Teo YY, Vukcevic D, Bentley D, Meigs JB, Williams G, Nathan DM, MacRae CA, O'Donnell CJ, Ardissino D, Merlini PA, Berzuini C, Bernardinelli L, Peyvandi F, Tubaro M, Celli P, Ferrario M, Fetiveau R, Marziliano N, Galli M, Ribichini F, Rossi M, Bernardi F, Zonzin P, Piazza A, Mannucci PM, Schwartz SM, Siscovick DS, Yee J, Friedlander Y, Elosua R, Marrugat J, Lucas G, Subirana I, Sala J, Ramos R, Salomaa V, Havulinna AS, Peltonen L, Melander O, Berglund G, Voight BF, Hirschhorn JN, Asselta R, Duga S, Spreafico M, Musunuru K, Daly MJ, Purcell S, Surti A, Guiducci C, Gianniny L, Mirel D, Parkin M, Burtt N, Gabriel SB, CASARI , GIORGIO NEVIO, Reilly, Mp, Li, M, He, J, Ferguson, Jf, Stylianou, Im, Mehta, Nn, Burnett, M, Devaney, Jm, Knouff, Cw, Thompson, Jr, Horne, Bd, Stewart, Af, Assimes, Tl, Wild, P, Allayee, H, Nitschke, Pl, Patel, R, Myocardial Infarction Genetics, Consortium, Wellcome Trust Case Control, Consortium, Martinelli, N, Girelli, D, Quyyumi, Aa, Anderson, Jl, Erdmann, J, Hall, A, Schunkert, H, Quertermous, T, Blankenberg, S, Hazen, Sl, Roberts, R, Kathiresan, S, Samani, Nj, Epstein, Se, Rader, Dj, Qasim, An, Derohannessian, Sl, Qu, L, Cappola, Tp, Chen, Z, Matthai, W, Hakonarson, Hh, Wilensky, R, Kent, Km, Lindsay, Jm, Pichard, Ad, Satler, L, Waksman, R, Knoupf, Cw, Walker, Mc, Waterworth, Dm, Mosser, V, Braund, P, Wright, B, Balmforth, Aj, Ball, Sg, Chen, L, Wells, Ga, Mcpherson, R, Lackner, K, Munzel, Tf, Schillert, A, Schnabel, R, Zeller, T, Ziegler, A, Absher, D, Hlatky, Ma, Iribaren, C, Knowles, Jw, Linsel Nitschke, P, König, Ir, Hengstenberg, C, Nahrstaedt, J, Peters, A, Schreiber, S, Wichmann, E, Willenborg, C, Su, S, Bouzyk, M, Vaccarino, V, Zafari, Am, Carlquist, Jf, Muhlestein, Jb, Olivieri, O, Barnard, J, Hartiala, J, Tang, Wh, Burton, Pr, Clayton, Dg, Cardon, Lr, Craddock, N, Deloukas, P, Duncanson, A, Kwiatkowski, Dp, Mccarthy, Mi, Ouwehand, Wh, Todd, Ja, Donnelly, P, Barrett, Jc, Davison, D, Easton, D, Evans, Dm, Leung, Ht, Marchini, Jl, Morris, Ap, Spencer, Cc, Tobin, Md, Attwood, Ap, Boorman, Jp, Cant, B, Everson, U, Hussey, Jm, Jolley, Jd, Knight, A, Koch, K, Meech, E, Nutland, S, Prowse, Cv, Stevens, He, Taylor, Nc, Walters, Gr, Walker, Nm, Watkins, Na, Winzer, T, Jones, Rw, Mcardle, Wl, Ring, Sm, Strachan, Dp, Pembrey, M, Breen, G, St Clair, D, Caesar, S, Gordon Smith, K, Jones, L, Fraser, C, Green, Ek, Grozeva, D, Hamshere, Ml, Holmans, Pa, Jones, Ir, Kirov, G, Moskvina, V, Nikolov, I, O'Donovan, Mc, Owen, Mj, Collier, Da, Elkin, A, Farmer, A, Williamson, R, Mcguffin, P, Young, Ah, Ferrier, In, Barrett, Jh, Bishop, Dt, Iles, Mm, Maqbool, A, Yuldasheva, N, Dixon, Rj, Mangino, M, Stevens, S, Bredin, F, Tremelling, M, Parkes, M, Drummond, H, Lees, Cw, Nimmo, Er, Satsangi, J, Fisher, Sa, Forbes, A, Lewis, Cm, Onnie, Cm, Prescott, Nj, Sanderson, J, Mathew, Cg, Barbour, J, Mohiuddin, Mk, Todhunter, Ce, Mansfield, Jc, Ahmad, T, Cummings, Fr, Jewell, Dp, Webster, J, Brown, Mj, Lathrop, M, Connell, J, Dominiczak, A, Marcano, Ca, Burke, B, Dobson, R, Gungadoo, J, Lee, Kl, Munroe, Pb, Newhouse, Sj, Onipinla, A, Wallace, C, Xue, M, Caulfield, M, Farrall, M, Barton, A, Bruce, In, Donovan, H, Eyre, S, Gilbert, Pd, Hider, Sl, Hinks, Am, John, Sl, Potter, C, Silman, Aj, Symmons, Dp, Thomson, W, Worthington, J, Dunger, Db, Widmer, B, Frayling, Tm, Freathy, Rm, Lango, H, Perry, Jr, Shields, Bm, Weedon, Mn, Hattersley, At, Hitman, Ga, Walker, M, Elliott, K, Groves, Cj, Lindgren, Cm, Rayner, Nw, Timpson, Nj, Zeggini, E, Newport, M, Sirugo, G, Lyons, E, Vannberg, F, Hill, Av, Bradbury, La, Farrar, C, Pointon, Jj, Wordsworth, P, Brown, Ma, Franklyn, Ja, Heward, Jm, Simmonds, Mj, Gough, Sc, Seal, S, Stratton, Mr, Rahman, N, Ban, M, Goris, A, Sawcer, Sj, Compston, A, Conway, D, Jallow, M, Rockett, Ka, Bumpstead, Sj, Chaney, A, Downes, K, Ghori, Mj, Gwilliam, R, Hunt, Se, Inouye, M, Keniry, A, King, E, Mcginnis, R, Potter, S, Ravindrarajah, R, Whittaker, P, Widden, C, Withers, D, Cardin, Nj, Ferreira, T, Pereira Gale, J, Hallgrimsdóttir, Ib, Bowie, Bn, Su, Z, Teo, Yy, Vukcevic, D, Bentley, D, Meigs, Jb, Williams, G, Nathan, Dm, Macrae, Ca, O'Donnell, Cj, Ardissino, D, Merlini, Pa, Berzuini, C, Bernardinelli, L, Peyvandi, F, Tubaro, M, Celli, P, Ferrario, M, Fetiveau, R, Marziliano, N, Casari, GIORGIO NEVIO, Galli, M, Ribichini, F, Rossi, M, Bernardi, F, Zonzin, P, Piazza, A, Mannucci, Pm, Schwartz, Sm, Siscovick, D, Yee, J, Friedlander, Y, Elosua, R, Marrugat, J, Lucas, G, Subirana, I, Sala, J, Ramos, R, Salomaa, V, Havulinna, A, Peltonen, L, Melander, O, Berglund, G, Voight, Bf, Hirschhorn, Jn, Asselta, R, Duga, S, Spreafico, M, Musunuru, K, Daly, Mj, Purcell, S, Surti, A, Guiducci, C, Gianniny, L, Mirel, D, Parkin, M, Burtt, N, and Gabriel, Sb

Subjects
Adult, Male, medicine.medical_specialty, Linkage disequilibrium, ABO, ADAMTS7 Protein, ADAMTS7, Genome-wide association study, Coronary Angiography, Polymorphism, Single Nucleotide, Linkage Disequilibrium, ABO Blood-Group System, Coronary artery disease, Gene Frequency, ABO blood group system, Internal medicine, medicine, Genetic predisposition, Humans, Genetic Predisposition to Disease, cardiovascular diseases, Myocardial infarction, Genetic risk factor, genetic locus, Coronary atherosclerosis, Aged, business.industry, coronary atherosclerosis, General Medicine, Middle Aged, medicine.disease, ADAM Proteins, myocardial infarction, Genetic Loci, Cardiology, Myocardial infarction complications, Female, business, coronary artery disease, Genome-Wide Association Study
Abstract

BACKGROUND: We tested whether genetic factors distinctly contribute to either development of coronary atherosclerosis or, specifically, to myocardial infarction in existing coronary atherosclerosis. METHODS: We did two genome-wide association studies (GWAS) with coronary angiographic phenotyping in participants of European ancestry. To identify loci that predispose to angiographic coronary artery disease (CAD), we compared individuals who had this disorder (n=12,393) with those who did not (controls, n=7383). To identify loci that predispose to myocardial infarction, we compared patients who had angiographic CAD and myocardial infarction (n=5783) with those who had angiographic CAD but no myocardial infarction (n=3644). FINDINGS: In the comparison of patients with angiographic CAD versus controls, we identified a novel locus, ADAMTS7 (p=4·98×10(-13)). In the comparison of patients with angiographic CAD who had myocardial infarction versus those with angiographic CAD but no myocardial infarction, we identified a novel association at the ABO locus (p=7·62×10(-9)). The ABO association was attributable to the glycotransferase-deficient enzyme that encodes the ABO blood group O phenotype previously proposed to protect against myocardial infarction. INTERPRETATION: Our findings indicate that specific genetic predispositions promote the development of coronary atherosclerosis whereas others lead to myocardial infarction in the presence of coronary atherosclerosis. The relation to specific CAD phenotypes might modify how novel loci are applied in personalised risk assessment and used in the development of novel therapies for CAD. FUNDING: The PennCath and MedStar studies were supported by the Cardiovascular Institute of the University of Pennsylvania, by the MedStar Health Research Institute at Washington Hospital Center and by a research grant from GlaxoSmithKline. The funding and support for the other cohorts contributing to the paper are described in the webappendix.

Published
2011

5. Quote by Cummings, Fr. Jerome on Love

Author

Cummings, Fr. Jerome

Subjects
Love, Literature/writing
Abstract

QUOTE: 'Love is shown in your deeds, not in your words.' --Cummings, Fr. Jerome SUBJECT: [...]

Published
2010

7. Genome-wide association study identifies eight loci associated with blood pressure

Author

Newton-Cheh, C, Johnson, T, Gateva, V, Tobin, MD, Bochud, M, Coin, L, Najjar, SS, Zhao, JH, Heath, SC, Eyheramendy, S, Papadakis, K, Voight, BF, Scott, LJ, Zhang, F, Farrall, M, Tanaka, T, Wallace, C, Chambers, JC, Khaw, K, Nilsson, P, Van Der Harst, P, Polidoro, S, Grobbee, DE, Onland-Moret, NC, Bots, ML, Wain, LV, Elliot, KS, Teumer, A, Luan, J, Lucas, G, Kuusisto, J, Burton, PR, Hadley, D, McArdle, WL, Brown, M, Dominiczak, A, Newhouse, SJ, Samani, NJ, Webster, J, Zeggini, E, Beckmann, JS, Bergmann, S, Lim, N, Song, K, Vollenweider, P, Waeber, G, Waterworth, DM, Yuan, X, Groop, L, Orho-Melander, M, Allione, A, Di Gregorio, A, Guarrera, S, Panico, S, Ricceri, F, Romanazzi, V, Sacerdote, C, Vineis, P, Barroso, I, Sandhu, MS, Luben, RN, Crawford, GJ, Jousilahti, P, Perola, M, Boehnke, M, Bonnycastle, LL, Collins, FS, Jackson, AU, Mohlke, KL, Stringham, HM, Valle, TT, Willer, CJ, Bergman, RN, Morken, MA, Döring, A, Gieger, C, Illig, T, Meitinger, T, Org, E, Pfeufer, A, Wichmann, HE, Kathiresan, S, Marrugat, J, O'Donnell, CJ, Schwartz, SM, Siscovick, DS, Subirana, I, Freimer, NB, Hartikainen, A, McCarthy, MI, O'Reilly, PF, Peltonen, L, Pouta, A, De Jong, PE, Snieder, H, Van Gilst, WH, Clarke, R, Goel, A, Hamsten, A, Altshuler, D, Jarvelin, M, Elliott, P, Lakatta, EG, Forouhi, N, Wareham, NJ, Loos, RJF, Deloukas, P, Lathrop, GM, Zelenika, D, Strachan, DP, Soranzo, N, Williams, FM, Zhai, G, Spector, TD, Peden, JF, Watkins, H, Ferrucci, L, Caulfield, M, Munroe, PB, Berglund, G, Melander, O, Matullo, G, Uiterwaal, CS, van der Schouw, YT, Numans, ME, Ernst, F, Homuth, G, Völker, U, Elosua, R, Laakso, M, Connell, JM, Mooser, V, Salomaa, V, Tuomilehto, J, Laan, M, Navis, G, Seedorf, U, Syvänen, A, Tognoni, G, Sanna, S, Uda, M, Scheet, P, Schlessinger, D, Scuteri, A, Dörr, M, Felix, SB, Reffelmann, T, Lorbeer, R, Völzke, H, Rettig, R, Galan, P, Hercberg, S, Bingham, SA, Kooner, JS, Bandinelli, S, Meneton, P, Abecasis, G, Thompson, JR, Braga Marcano, CA, Barke, B, Dobson, R, Gungadoo, J, Lee, KL, Onipinla, A, Wallace, I, Xue, M, Clayton, DG, Leung, H, Nutland, S, Walker, NM, Todd, JA, Stevens, HE, Dunger, DB, Widmer, B, Downes, K, Cardon, LR, Kwiatkowski, DP, Barrett, JC, Evans, D, Morris, AP, Lindgren, CM, Rayner, NW, Timpson, NJ, Lyons, E, Vannberg, F, Hill, AVS, Teo, YY, Rockett, KA, Craddock, N, Attwood, AP, Bryan, C, Bumpstead, SJ, Chaney, A, Ghori, J, William, RG, Hunt, SE, Inouye, M, Keniry, E, King, E, McGinnis, R, Potter, S, Ravindrarajan, R, Whittaker, P, Withers, D, Bentley, D, Groves, CJ, Duncanson, A, Ouwehand, WH, Boorman, JP, Cant, B, Jolley, JD, Knight, AS, Koch, K, Taylor, NC, Watkins, NA, Winzer, T, Braund, PS, Dixon, RJ, Mangino, M, Stevens, S, Donnely, P, Davidson, D, Marchini, JL, Spencer, ICA, Cardin, NJ, Ferreira, T, Pereira-Gale, J, Hallgrimsdottir, IB, Howie, BN, Su, Z, Vukcevic, D, Easton, D, Everson, U, Hussey, JM, Meech, E, Prowse, CV, Walters, GR, Jones, RW, Ring, SM, Prembey, M, Breen, G, St Clair, D, Ceasar, S, Gordon-Smith, K, Fraser, C, Green, EK, Grozeva, D, Hamshere, ML, Holmans, PA, Jones, IR, Kirov, G, Moskovina, V, Nikolov, I, O'Donovan, MC, Owen, MJ, Collier, DA, Elkin, A, Farmer, A, Williamson, R, McGruffin, P, Young, AH, Ferrier, IN, Ball, SG, Balmforth, AJ, Barrett, JH, Bishop, DT, Iles, MM, Maqbool, A, Yuldasheva, N, Hall, AS, Bredin, F, Tremelling, M, Parkes, M, Drummond, H, Lees, CW, Nimmo, ER, Satsangi, J, Fisher, SA, Lewis, CM, Onnie, CM, Prescott, NJ, Mathew, CG, Forbes, A, Sanderson, J, Mathew, C, Barbour, J, Mohiuddin, MK, Todhunter, CE, Mansfield, JC, Ahmad, T, Cummings, FR, Jewell, DP, Barton, A, Bruce, IN, Donovan, H, Eyre, S, Gilbert, PD, Hider, SL, Hinks, AM, John, SL, Potter, C, Silman, AJ, Symmons, DPM, Thomson, W, Worthington, J, Frayling, TM, Freathy, RM, Lango, H, Perry, JRB, Weedon, MN, Hattersley, AT, Shields, BM, Hitman, GA, Walker, M, Newport, M, Sirugo, G, Conway, D, Jallow, M, Bradbury, LA, Pointon, JL, Brown, MA, Farrar, C, Wordsworth, P, Franklyn, JA, Heward, JM, Simmonds, MJ, Cough, SCL, Seal, S, Stratton, MR, Ban, M, Goris, A, Sawcer, SJ, Compston, A, Newton-Cheh, C, Johnson, T, Gateva, V, Tobin, MD, Bochud, M, Coin, L, Najjar, SS, Zhao, JH, Heath, SC, Eyheramendy, S, Papadakis, K, Voight, BF, Scott, LJ, Zhang, F, Farrall, M, Tanaka, T, Wallace, C, Chambers, JC, Khaw, K, Nilsson, P, Van Der Harst, P, Polidoro, S, Grobbee, DE, Onland-Moret, NC, Bots, ML, Wain, LV, Elliot, KS, Teumer, A, Luan, J, Lucas, G, Kuusisto, J, Burton, PR, Hadley, D, McArdle, WL, Brown, M, Dominiczak, A, Newhouse, SJ, Samani, NJ, Webster, J, Zeggini, E, Beckmann, JS, Bergmann, S, Lim, N, Song, K, Vollenweider, P, Waeber, G, Waterworth, DM, Yuan, X, Groop, L, Orho-Melander, M, Allione, A, Di Gregorio, A, Guarrera, S, Panico, S, Ricceri, F, Romanazzi, V, Sacerdote, C, Vineis, P, Barroso, I, Sandhu, MS, Luben, RN, Crawford, GJ, Jousilahti, P, Perola, M, Boehnke, M, Bonnycastle, LL, Collins, FS, Jackson, AU, Mohlke, KL, Stringham, HM, Valle, TT, Willer, CJ, Bergman, RN, Morken, MA, Döring, A, Gieger, C, Illig, T, Meitinger, T, Org, E, Pfeufer, A, Wichmann, HE, Kathiresan, S, Marrugat, J, O'Donnell, CJ, Schwartz, SM, Siscovick, DS, Subirana, I, Freimer, NB, Hartikainen, A, McCarthy, MI, O'Reilly, PF, Peltonen, L, Pouta, A, De Jong, PE, Snieder, H, Van Gilst, WH, Clarke, R, Goel, A, Hamsten, A, Altshuler, D, Jarvelin, M, Elliott, P, Lakatta, EG, Forouhi, N, Wareham, NJ, Loos, RJF, Deloukas, P, Lathrop, GM, Zelenika, D, Strachan, DP, Soranzo, N, Williams, FM, Zhai, G, Spector, TD, Peden, JF, Watkins, H, Ferrucci, L, Caulfield, M, Munroe, PB, Berglund, G, Melander, O, Matullo, G, Uiterwaal, CS, van der Schouw, YT, Numans, ME, Ernst, F, Homuth, G, Völker, U, Elosua, R, Laakso, M, Connell, JM, Mooser, V, Salomaa, V, Tuomilehto, J, Laan, M, Navis, G, Seedorf, U, Syvänen, A, Tognoni, G, Sanna, S, Uda, M, Scheet, P, Schlessinger, D, Scuteri, A, Dörr, M, Felix, SB, Reffelmann, T, Lorbeer, R, Völzke, H, Rettig, R, Galan, P, Hercberg, S, Bingham, SA, Kooner, JS, Bandinelli, S, Meneton, P, Abecasis, G, Thompson, JR, Braga Marcano, CA, Barke, B, Dobson, R, Gungadoo, J, Lee, KL, Onipinla, A, Wallace, I, Xue, M, Clayton, DG, Leung, H, Nutland, S, Walker, NM, Todd, JA, Stevens, HE, Dunger, DB, Widmer, B, Downes, K, Cardon, LR, Kwiatkowski, DP, Barrett, JC, Evans, D, Morris, AP, Lindgren, CM, Rayner, NW, Timpson, NJ, Lyons, E, Vannberg, F, Hill, AVS, Teo, YY, Rockett, KA, Craddock, N, Attwood, AP, Bryan, C, Bumpstead, SJ, Chaney, A, Ghori, J, William, RG, Hunt, SE, Inouye, M, Keniry, E, King, E, McGinnis, R, Potter, S, Ravindrarajan, R, Whittaker, P, Withers, D, Bentley, D, Groves, CJ, Duncanson, A, Ouwehand, WH, Boorman, JP, Cant, B, Jolley, JD, Knight, AS, Koch, K, Taylor, NC, Watkins, NA, Winzer, T, Braund, PS, Dixon, RJ, Mangino, M, Stevens, S, Donnely, P, Davidson, D, Marchini, JL, Spencer, ICA, Cardin, NJ, Ferreira, T, Pereira-Gale, J, Hallgrimsdottir, IB, Howie, BN, Su, Z, Vukcevic, D, Easton, D, Everson, U, Hussey, JM, Meech, E, Prowse, CV, Walters, GR, Jones, RW, Ring, SM, Prembey, M, Breen, G, St Clair, D, Ceasar, S, Gordon-Smith, K, Fraser, C, Green, EK, Grozeva, D, Hamshere, ML, Holmans, PA, Jones, IR, Kirov, G, Moskovina, V, Nikolov, I, O'Donovan, MC, Owen, MJ, Collier, DA, Elkin, A, Farmer, A, Williamson, R, McGruffin, P, Young, AH, Ferrier, IN, Ball, SG, Balmforth, AJ, Barrett, JH, Bishop, DT, Iles, MM, Maqbool, A, Yuldasheva, N, Hall, AS, Bredin, F, Tremelling, M, Parkes, M, Drummond, H, Lees, CW, Nimmo, ER, Satsangi, J, Fisher, SA, Lewis, CM, Onnie, CM, Prescott, NJ, Mathew, CG, Forbes, A, Sanderson, J, Mathew, C, Barbour, J, Mohiuddin, MK, Todhunter, CE, Mansfield, JC, Ahmad, T, Cummings, FR, Jewell, DP, Barton, A, Bruce, IN, Donovan, H, Eyre, S, Gilbert, PD, Hider, SL, Hinks, AM, John, SL, Potter, C, Silman, AJ, Symmons, DPM, Thomson, W, Worthington, J, Frayling, TM, Freathy, RM, Lango, H, Perry, JRB, Weedon, MN, Hattersley, AT, Shields, BM, Hitman, GA, Walker, M, Newport, M, Sirugo, G, Conway, D, Jallow, M, Bradbury, LA, Pointon, JL, Brown, MA, Farrar, C, Wordsworth, P, Franklyn, JA, Heward, JM, Simmonds, MJ, Cough, SCL, Seal, S, Stratton, MR, Ban, M, Goris, A, Sawcer, SJ, and Compston, A

Abstract

Elevated blood pressure is a common, heritable cause of cardiovascular disease worldwide. To date, identification of common genetic variants influencing blood pressure has proven challenging. We tested 2.5 million genotyped and imputed SNPs for association with systolic and diastolic blood pressure in 34,433 subjects of European ancestry from the Global BPgen consortium and followed up findings with direct genotyping (N ≤ 71,225 European ancestry, N ≤ 12,889 Indian Asian ancestry) and in silico comparison (CHARGE consortium, N = 29,136). We identified association between systolic or diastolic blood pressure and common variants in eight regions near the CYP17A1 (P = 7 × 10−24), CYP1A2 (P = 1 × 10−23), FGF5 (P = 1 × 10−21), SH2B3 (P = 3 × 10−18), MTHFR (P = 2 × 10−13), c10orf107 (P = 1 × 10−9), ZNF652 (P = 5 × 10−9) and PLCD3 (P = 1 × 10−8) genes. All variants associated with continuous blood pressure were associated with dichotomous hypertension. These associations between common variants and blood pressure and hypertension offer mechanistic insights into the regulation of blood pressure and may point to novel targets for interventions to prevent cardiovascular disease.

8. Genome-wide association study identifies eight loci associated with blood pressure

Author

Peter Holmans, Udo Seedorf, Beverley M. Shields, Peter McGruffin, Arne Pfeufer, Steve Eyre, Nathalie J. Prescott, Michael Boehnke, Valentina Moskovina, Abiodun Onipinla, Leena Peltonen, Nadira Yuldasheva, Peter M. Nilsson, Valeria Romanazzi, Vincent Mooser, Göran Berglund, Alistair S. Hall, Dominic P. Kwiatkowski, Barry Widmer, Benjamin F. Voight, Stefania Bandinelli, Mark M. Iles, Sven Bergmann, Thomas Meitinger, James P. Boorman, Simonetta Guarrera, Nazneen Rahman, Murielle Bochud, Graham A. Hitman, Emma Keniry, Nelson B. Freimer, Richard Dobson, Francis S. Collins, Gerjan Navis, Jennifer L. Pointon, Richard N. Bergman, Ruth J. F. Loos, Roberto Lorbeer, Carolina A. Braga Marcano, Christian Gieger, Florian Ernst, Xin Yuan, Catherine Potter, Hazel E. Drummond, Allan H. Young, George Kirov, John F. Peden, Helen Stevens, David Clayton, Mattijs E. Numans, Katherine Gordon-Smith, Anne Farmer, Alastair Forbes, M. Khalid Mohiuddin, John A. Todd, Christopher G. Mathew, David A. Collier, Mark I. McCarthy, Francesca Bredin, Clive M. Onnie, Dan Davidson, Markus Perola, Pamela Whittaker, Yvonne T. van der Schouw, Rathi Ravindrarajan, I. C.A. Spencer, Teresa Ferreira, Nilesh J. Samani, Serge Hercberg, Gonçalo R. Abecasis, Christopher J. Groves, Nicholas John Craddock, Angela Döring, Edward G. Lakatta, Muminatou Jallow, Wendy L. McArdle, David Bentley, Susana Eyheramendy, Uwe Völker, Christopher Newton-Cheh, Jaspal S. Kooner, Hugh Watkins, Gavin Lucas, H. T. Leung, Marjo Ritta Jarvelin, Johanna Kuusisto, Wiek H. van Gilst, Wendy Thomson, Lou R. Cardon, Harold Snieder, Marju Orho-Melander, Patricia B. Munroe, Toshiko Tanaka, Jeffrey C. Barrett, Azhar Maqbool, Henry Völzke, John M. C. Connell, Elaine R. Nimmo, John R. B. Perry, Michael R. Stratton, Ralph McGinnis, Pekka Jousilahti, Michiel L. Bots, Ian Jones, Elizabeth Meech, Matthew A. Brown, Johannie Gungadoo, Jian'an Luan, Jilur Ghori, Richard J. Dixon, N. Charlotte Onland-Moret, Fulvio Ricceri, Anthony J. Balmforth, Catherine E. Todhunter, Inês Barroso, Sheila Bingham, Timo T. Valle, Fredrik O. Vannberg, Diana Zelenika, Stephen Sawcer, Anneli Pouta, David M. Evans, Cuno S. P. M. Uiterwaal, Pilar Galan, Georg Homuth, Hannah Donovan, David J. Conway, Paul Elliott, Alessandra Allione, Paul E. de Jong, Miles Parkes, Amy Chaney, John C. Chambers, Toby Johnson, Isaac Subirana, Vesela Gateva, Cathryn M. Lewis, Christopher J. O'Donnell, Hana Lango, David Schlessinger, Mark J. Caulfield, Thorsten Reffelmann, Jamie Barbour, Karen L. Mohlke, Sarah E. Hunt, Thilo Winzer, Frances M K Williams, Christopher Mathew, I. Wallace, Anuj Goel, Jaakko Tuomilehto, Louise V. Wain, Gabriel Crawford, Samantha L. Hider, Detelinea Grozeva, Elaine K. Green, Paul D. Gilbert, Peter S. Braund, Jaume Marrugat, Rainer Rettig, Pim van der Harst, Yik Ying Teo, Andrew P. Morris, Guiseppe Matullo, Serena Sanna, Cristen J. Willer, Suzannah Bumpstead, Niall C. Taylor, Jacques S. Beckmann, Pierre Meneton, Elin Org, Luigi Ferrucci, Doug Easton, Sheila Seal, Joanne M. Heward, Anne U. Jackson, Eleftheria Zeggini, Rachel M. Freathy, Maris Laan, Paul Wordsworth, Sarah Nutland, Kerstin Koch, Sian Ceasar, Anders Hamsten, Judith M. Hussey, Tariq Ahmad, Derek P. Jewell, Paul Scheet, Charlie W. Lees, C Farrar, Christopher Prowse, Markku Laakso, David St Clair, Kate Downes, Diederick E. Grobbee, Paul Burton, Simon C. Potter, Ian N. Bruce, Tim D. Spector, Anne Barton, H.-Erich Wichmann, Matthew J. Simmonds, David Hadley, Cecilia M. Lindgren, Gérard Waeber, Nigel W. Rayner, Melanie J. Newport, Manjinder S. Sandhu, Audrey Duncanson, Guangju Zhai, Simon Heath, Susan M. Ring, Alessandra Di Gregorio, Richard Williamson, Nicholas J. Wareham, Zhan Su, Olle Melander, John R. Thompson, Alexander Teumer, Sheila A. Fisher, Lachlan J. M. Coin, Leif Groop, Giovanni Tognoni, Amanda Elkin, Alan J. Silman, Jack Satsangi, Jane Worthington, Martin Farrall, John Webster, Niall Cardin, Neil Walker, Anna F. Dominiczak, Jeremy D. Sanderson, Damjan Vukcevic, Bryan Howie, Silvia Polidoro, Stephen G. Ball, Mark Tremelling, Stephen Newhouse, Stephen M. Schwartz, Lori L. Bonnycastle, Chris Wallace, Kijoung Song, Mario A. Morken, I. Nicol Ferrier, Beverley Barke, Paolo Vineis, Manuela Uda, Deborah P M Symmons, Emily J. Lyons, Mingzhan Xue, Timothy M. Frayling, Stephen C.L. Cough, David Withers, Adrian V. S. Hill, Suzanne Stevens, Jennifer Jolley, Marcus Dörr, Kirk A. Rockett, David B. Dunger, Mark Walker, Jayne A. Franklyn, Lisa Jones, David S. Siscovick, Ann-Christine Syvänen, Laura J. Scott, Morris J. Brown, Barbera Cant, Michael Inouye, Feng Zhang, Carlotta Sacerdote, Katherine S. Elliott, Jonathan Marchini, Peter Donnely, Michael John Owen, An Goris, Marcus Prembey, Andrew T. Hattersley, Gerome Breen, Marian L. Hamshere, Thomas Illig, Samer S. Najjar, Nicole Soranzo, Kay-Tee Khaw, Graham R. Walters, Willem H. Ouwehand, David P. Strachan, Martin D. Tobin, Alastair Compston, John C. Mansfield, David Altshuler, Salvatore Panico, Sekar Kathiresan, Dawn M. Waterworth, Michael N. Weedon, D. Timothy Bishop, Claire Bryan, Alexandra S. Knight, Kate L. Lee, Paul F. O'Reilly, Massimo Mangino, Michael Conlon O'Donovan, Jing Hua Zhao, Konstantinos A. Papadakis, Jennifer H. Barrett, Joanne Pereira-Gale, N J Timpson, Stephan B. Felix, Panos Deloukas, Nicholas A. Watkins, Anna-Liisa Hartikainen, Peter Vollenweider, Richard Jones, Anne Hinks, Fraser Cummings, Noha Lim, Linda A. Bradbury, Rhian G. William, Nita G. Forouhi, Roberto Eluosa, Ingeleif B. Hallgrimsdottir, Giorgio Sirugo, Robert Luben, Veikko Salomaa, Robert Clarke, Sally John, Ursula Everson, Emma King, Ivan Nikolov, Heather M. Stringham, Antony P. Attwood, Angelo Scuteri, Wellcome Trust Case Control Consortium, Burton, PR., Clayton, DG., Cardon, LR., Craddock, N., Deloukas, P., Duncanson, A., Kwiatkowski, DP., McCarthy, MI., Ouwehand, WH., Samani, NJ., Todd, JA., Donnelly, P., Barrett, JC., Davison, D., Easton, D., Evans, D., Leung, HT., Marchini, JL., Morris, AP., Spencer, IC., Tobin, MD., Attwood, AP., Boorman, JP., Cant, B., Everson, U., Hussey, JM., Jolley, JD., Knight, AS., Koch, K., Meech, E., Nutland, S., Prowse, CV., Stevens, HE., Taylor, NC., Walters, GR., Walker, NM., Watkins, NA., Winzer, T., Jones, RW., McArdle, WL., Ring, SM., Strachan, DP., Pembrey, M., Breen, G., St Clair, D., Caesar, S., Gordon-Smith, K., Jones, L., Fraser, C., Green, EK., Grozeva, D., Hamshere, ML., Holmans, PA., Jones, IR., Kirov, G., Moskvina, V., Nikolov, I., O'Donovan, MC., Owen, MJ., Collier, DA., Elkin, A., Farmer, A., Williamson, R., McGuffin, P., Young, AH., Ferrier, IN., Ball, SG., Balmforth, AJ., Barrett, JH., Bishop, DT., Iles, MM., Maqbool, A., Yuldasheva, N., Hall, AS., Braund, PS., Dixon, RJ., Mangino, M., Stevens, S., Thompson, JR., Bredin, F., Tremelling, M., Parkes, M., Drummond, H., Lees, CW., Nimmo, ER., Satsangi, J., Fisher, SA., Forbes, A., Lewis, CM., Onnie, CM., Prescott, NJ., Sanderson, J., Mathew, CG., Barbour, J., Mohiuddin, MK., Todhunter, CE., Mansfield, JC., Ahmad, T., Cummings, FR., Jewell, DP., Webster, J., Brown, MJ., Lathrop, GM., Connell, J., Dominiczak, A., Braga Marcano, CA., Burke, B., Dobson, R., Gungadoo, J., Lee, KL., Munroe, PB., Newhouse, SJ., Onipinla, A., Wallace, I., Xue, M., Caulfield, M., Farrall, M., Barton, A., Bruce, IN., Donovan, H., Eyre, S., Gilbert, PD., Hider, SL., Hinks, AM., John, SL., Potter, C., Silman, AJ., Symmons, DP., Thomson, W., Worthington, J., Dunger, DB., Widmer, B., Frayling, TM., Freathy, RM., Lango, H., Perry, JR., Shields, BM., Weedon, MN., Hattersley, AT., Hitman, GA., Walker, M., Elliott, KS., Groves, CJ., Lindgren, CM., Rayner, NW., Timpson, NJ., Zeggini, E., Newport, M., Sirugo, G., Lyons, E., Vannberg, F., Hill, AV., Bradbury, LA., Farrar, C., Pointon, JJ., Wordsworth, P., Brown, MA., Franklyn, JA., Heward, JM., Simmonds, MJ., Gough, SC., Seal, S., Stratton, MR., Rahman, N., Ban, M., Goris, A., Sawcer, SJ., Compston, A., Conway, D., Jallow, M., Rockett, KA., Bryan, C., Bumpstead, SJ., Chaney, A., Downes, K., Ghori, J., Gwilliam, R., Hunt, SE., Inouye, M., Keniry, A., King, E., McGinnis, R., Potter, S., Ravindrarajah, R., Whittaker, P., Withers, D., Cardin, NJ., Ferreira, T., Pereira-Gale, J., Hallgrimsdóttir, IB., Howie, BN., Su, Z., Teo, YY., Vukcevic, D., Bentley, D., Life Course Epidemiology (LCE), Cardiovascular Centre (CVC), Lifestyle Medicine (LM), Groningen Kidney Center (GKC), Vascular Ageing Programme (VAP), and Medical Research Council (MRC)

Subjects
Hemodynamics, Genome-wide association study, Blood Pressure, 030204 cardiovascular system & hematology, 0302 clinical medicine, Diastole, 11 Medical and Health Sciences, POPULATION, Genetics, Genetics & Heredity, RISK, 0303 health sciences, education.field_of_study, Econometric and Statistical Methods: General, CELL-DIFFERENTIATION, biology, Intracellular Signaling Peptides and Proteins, Chromosome Mapping, Steroid 17-alpha-Hydroxylase, COMMON VARIANTS, 3. Good health, DNA-Binding Proteins, Europe, Cardiovascular Diseases, PUBLIC-HEALTH, BARTTERS-SYNDROME, Blood Pressure/genetics, Cardiovascular Diseases/genetics, Cardiovascular Diseases/physiopathology, Cytochrome P-450 CYP1A2/genetics, DNA-Binding Proteins/genetics, Diastole/genetics, European Continental Ancestry Group/genetics, Fibroblast Growth Factor 5/genetics, Genetic Variation, Genome-Wide Association Study, Humans, India, Methylenetetrahydrofolate Reductase (NADPH2)/genetics, Open Reading Frames/genetics, Phospholipase C delta/genetics, Polymorphism, Single Nucleotide, Proteins/genetics, Steroid 17-alpha-Hydroxylase/genetics, Systole/genetics, Wellcome Trust Case Control Consortium, Life Sciences & Biomedicine, hypertension, Fibroblast Growth Factor 5, Systole, Population, European Continental Ancestry Group, METHYLENETETRAHYDROFOLATE REDUCTASE GENE, Single-nucleotide polymorphism, LOW-RENIN HYPERTENSION, White People, Article, 03 medical and health sciences, Open Reading Frames, Fibroblast growth factor-5, Cytochrome P-450 CYP1A2, Geneeskunde(GENK), education, Methylenetetrahydrofolate Reductase (NADPH2), Adaptor Proteins, Signal Transducing, 030304 developmental biology, Genetic association, genome-wide association, Science & Technology, MUTATIONS, Proteins, 06 Biological Sciences, POLYMORPHISM, Blood pressure, Methylenetetrahydrofolate reductase, biology.protein, biology.gene, Phospholipase C delta, Developmental Biology
Abstract

Elevated blood pressure is a common, heritable cause of cardiovascular disease worldwide. To date, identification of common genetic variants influencing blood pressure has proven challenging. We tested 2.5 million genotyped and imputed SNPs for association with systolic and diastolic blood pressure in 34,433 subjects of European ancestry from the Global BPgen consortium and followed up findings with direct genotyping (N ≤ 71,225 European ancestry, N ≤ 12,889 Indian Asian ancestry) and in silico comparison (CHARGE consortium, N = 29,136). We identified association between systolic or diastolic blood pressure and common variants in eight regions near the CYP17A1 (P = 7 × 10(-24)), CYP1A2 (P = 1 × 10(-23)), FGF5 (P = 1 × 10(-21)), SH2B3 (P = 3 × 10(-18)), MTHFR (P = 2 × 10(-13)), c10orf107 (P = 1 × 10(-9)), ZNF652 (P = 5 × 10(-9)) and PLCD3 (P = 1 × 10(-8)) genes. All variants associated with continuous blood pressure were associated with dichotomous hypertension. These associations between common variants and blood pressure and hypertension offer mechanistic insights into the regulation of blood pressure and may point to novel targets for interventions to prevent cardiovascular disease.

Published
2009
Full Text
View/download PDF

9. Prevalence and long-term outcome of sub-clinical primary sclerosing cholangitis in patients with ulcerative colitis.

Author

Culver EL, Bungay HK, Betts M, Forde C, Buchel O, Manganis C, Warren BF, Cummings FR, Keshav S, Travis SPL, and Chapman RW

Subjects
Case-Control Studies, Humans, Prevalence, Prospective Studies, Cholangitis, Sclerosing complications, Cholangitis, Sclerosing epidemiology, Colitis, Ulcerative complications, Colitis, Ulcerative epidemiology
Abstract

Background: Primary sclerosing cholangitis (PSC) is closely associated with inflammatory bowel disease, particularly ulcerative colitis (UC), with an increased risk of biliary and colorectal malignancy. We sought to clarify the prevalence, characteristics and long-term outcome of sub-clinical PSC diagnosed by magnetic resonance cholangiogram (MRC) in patients with UC and normal liver biochemistry, with or without colorectal dysplasia (CRD)., Methods: In this prospective case-control study, 70 patients with UC and normal liver function (51 extensive UC, 19 CRD), 28 healthy volunteers (negative controls) and 28 patients with PSC and cholestasis (positive controls) underwent MRC and blood evaluation. MRC scans were interpreted blindly by two radiologists who graded individually, the scans as definitive for PSC, possible for PSC or normal. Clinical outcome was assessed by blood monitoring, abdominal imaging and endoscopic surveillance., Results: 7/51 (14%) with extensive UC and 4/19 (21%) with CRD had biliary abnormalities on MRC consistent with PSC. 7/11 (64%) with sub-clinical PSC had isolated intrahepatic duct involvement. Sub-clinical PSC was associated with advanced age (P = .04), non-smoking (P = .03), pANCA (P = .04), quiescent colitis (P = .02), absence of azathioprine (P = .04) and high-grade CRD (P = .03). Inter-observer (kappa = 0.88) and intra-observer (kappa = 0.96) agreement for MRC interpretation was high. No negative controls were assessed as definite PSC, 4/28 were considered on blinding as possible PSC. During follow-up of sub-clinical PSC (median 10.1(3.1-11.9) years), four patients developed abnormal liver biochemistry, two had radiological progression of PSC and seven developed malignancy, including two biliary and one colorectal carcinoma., Conclusions: Prevalence of sub-clinical PSC appears high in patients with extensive UC and normal liver biochemistry, with or without CRD. Disease progression and malignancy were identified on long-term follow-up. MRC should be considered for all patients with extensive UC or CRD to stratify surveillance., (© 2020 The Authors. Liver International published by John Wiley & Sons Ltd.)

Published
2020
Full Text
View/download PDF

10. A highly responsive NH 3 sensor based on Pd-loaded ZnO nanoparticles prepared via a chemical precipitation approach.

Author

Mhlongo GH, Motaung DE, Cummings FR, Swart HC, and Ray SS

Abstract

The gas-detecting ability of nanostructured ZnO has led to significant attention being paid to the development of a unique and effective approach to its synthesis. However, its poor sensitivity, cross-sensitivity to humidity, long response/recovery times and poor selectivity hinder its practical use in environmental and health monitoring. In this context, the addition of noble metals, as dopants or catalysts to modify the ZnO surface has been examined to enhance its sensing performance. Herein, we report preparation of Pd-loaded ZnO nanoparticles via a chemical precipitation approach. Various Pd loadings were employed to produce surface-modified ZnO nanostructure sensors, and their resulting NH 3 sensing capabilities both in dry and humid environments were investigated. Through a comparative gas sensing study between the pure and Pd-loaded ZnO sensors upon exposure to NH 3 at an optimal operating temperature of 350 °C, the Pd-loaded ZnO sensors were found to exhibit enhanced sensor responses and fast response/recovery times. The influence of Pd loading and its successful incorporation into ZnO nanostructure was examined by X-ray diffraction, high resolution-transmission electron microscopy, and X-ray photoelectron spectroscopy. XPS studies demonstrated that in all samples, Pd existed in two chemical states, namely Pd° and Pd 2+ . The possible sensing mechanism related to NH 3 gas is also discussed in detail.

Published
2019
Full Text
View/download PDF

11. Association of Genetic Variants in NUDT15 With Thiopurine-Induced Myelosuppression in Patients With Inflammatory Bowel Disease.

Author

Walker GJ, Harrison JW, Heap GA, Voskuil MD, Andersen V, Anderson CA, Ananthakrishnan AN, Barrett JC, Beaugerie L, Bewshea CM, Cole AT, Cummings FR, Daly MJ, Ellul P, Fedorak RN, Festen EAM, Florin TH, Gaya DR, Halfvarson J, Hart AL, Heerasing NM, Hendy P, Irving PM, Jones SE, Koskela J, Lindsay JO, Mansfield JC, McGovern D, Parkes M, Pollok RCG, Ramakrishnan S, Rampton DS, Rivas MA, Russell RK, Schultz M, Sebastian S, Seksik P, Singh A, So K, Sokol H, Subramaniam K, Todd A, Annese V, Weersma RK, Xavier R, Ward R, Weedon MN, Goodhand JR, Kennedy NA, and Ahmad T

Subjects
Adolescent, Adult, Case-Control Studies, Colitis, Ulcerative drug therapy, Colitis, Ulcerative metabolism, Crohn Disease drug therapy, Crohn Disease metabolism, Exome, Female, Genome-Wide Association Study, Haplotypes, Humans, Leukocyte Count, Male, Methyltransferases genetics, Methyltransferases therapeutic use, Polymorphism, Single Nucleotide, Sequence Analysis, DNA methods, White People, Young Adult, Colitis, Ulcerative genetics, Crohn Disease genetics, Methyltransferases metabolism, Pyrophosphatases genetics
Abstract

Importance: Use of thiopurines may be limited by myelosuppression. TPMT pharmacogenetic testing identifies only 25% of at-risk patients of European ancestry. Among patients of East Asian ancestry, NUDT15 variants are associated with thiopurine-induced myelosuppression (TIM)., Objective: To identify genetic variants associated with TIM among patients of European ancestry with inflammatory bowel disease (IBD)., Design, Setting, and Participants: Case-control study of 491 patients affected by TIM and 679 thiopurine-tolerant unaffected patients who were recruited from 89 international sites between March 2012 and November 2015. Genome-wide association studies (GWAS) and exome-wide association studies (EWAS) were conducted in patients of European ancestry. The replication cohort comprised 73 patients affected by TIM and 840 thiopurine-tolerant unaffected patients., Exposures: Genetic variants associated with TIM., Main Outcomes and Measures: Thiopurine-induced myelosuppression, defined as a decline in absolute white blood cell count to 2.5 × 109/L or less or a decline in absolute neutrophil cell count to 1.0 × 109/L or less leading to a dose reduction or drug withdrawal., Results: Among 1077 patients (398 affected and 679 unaffected; median age at IBD diagnosis, 31.0 years [interquartile range, 21.2 to 44.1 years]; 540 [50%] women; 602 [56%] diagnosed as having Crohn disease), 919 (311 affected and 608 unaffected) were included in the GWAS analysis and 961 (328 affected and 633 unaffected) in the EWAS analysis. The GWAS analysis confirmed association of TPMT (chromosome 6, rs11969064) with TIM (30.5% [95/311] affected vs 16.4% [100/608] unaffected patients; odds ratio [OR], 2.3 [95% CI, 1.7 to 3.1], P = 5.2 × 10-9). The EWAS analysis demonstrated an association with an in-frame deletion in NUDT15 (chromosome 13, rs746071566) and TIM (5.8% [19/328] affected vs 0.2% [1/633] unaffected patients; OR, 38.2 [95% CI, 5.1 to 286.1], P = 1.3 × 10-8), which was replicated in a different cohort (2.7% [2/73] affected vs 0.2% [2/840] unaffected patients; OR, 11.8 [95% CI, 1.6 to 85.0], P = .03). Carriage of any of 3 coding NUDT15 variants was associated with an increased risk (OR, 27.3 [95% CI, 9.3 to 116.7], P = 1.1 × 10-7) of TIM, independent of TPMT genotype and thiopurine dose., Conclusions and Relevance: Among patients of European ancestry with IBD, variants in NUDT15 were associated with increased risk of TIM. These findings suggest that NUDT15 genotyping may be considered prior to initiation of thiopurine therapy; however, further study including additional validation in independent cohorts is required.

Published
2019
Full Text
View/download PDF

12. Insight on the silver catalyst distribution during silicon nanowire array formation: an X-ray reflectivity study.

Author

Kremenak JW, Arendse CJ, Cummings FR, Chen Y, and Miceli PF

Abstract

Although metal-catalysts are commonly used to create nanoscale materials at surfaces, little is quantitatively known or understood about the depth distribution profile of the catalyst during the growth process. Using X-ray reflectivity, we report the first quantitative investigation, with nanoscale resolution, of the Ag metal-catalyst depth distribution profile during metal-assisted chemical etch (MACE) growth of Si nanowire (SiNW) arrays on Si(100). Given the very low optical reflectivity of these nanowire arrays, specular reflection from these materials in the X-ray region is extremely challenging to measure because it probes interfaces on the nanoscale. Nevertheless, we demonstrate that with suitable investigation, X-ray specular reflection can be measured and utilized to obtain unique structural information about the composition profile of both Ag and Si. The measurements, which also include X-ray diffraction and complementary electron microscopy, reveal that the Ag nanoparticles distribute along the length of the nanowires upon etching with a Ag density that increases towards the etch front. The Ag nanoparticles coarsen with etch time, indicating a high mobility of Ag ions even though we also find that the Ag does not migrate from the SiNW region into the etch bath during etching. The Ag density gradient and the Ag mobility suggest the existence of a strong chemical force that attracts Ag towards the etch front. These results provide unique and important new insight into the growth process for creating SiNWs from wet chemical etching using metal-catalysts.

Published
2017
Full Text
View/download PDF

13. Ultra-sensitive and selective NH 3 room temperature gas sensing induced by manganese-doped titanium dioxide nanoparticles.

Author

Tshabalala ZP, Shingange K, Cummings FR, Ntwaeaborwa OM, Mhlongo GH, and Motaung DE

Abstract

The study of the fabrication of ultra-high sensitive and selective room temperature ammonia (NH 3 ) and nitrogen dioxide (NO 2 ) gas sensors remains an important scientific challenge in the gas sensing field. This is motivated by their harmful impact on the human health and environment. Therefore, herein, we report for the first time on the gas sensing properties of TiO 2 nanoparticles doped with various concentrations of manganese (Mn) (1.0, 1.5, 2.0, 2.5 and 3.0mol.% presented as S1, S2, S3, S4 and S5, respectively), synthesized using hydrothermal method. Structural analyses showed that both undoped and Mn-doped TiO 2 crystallized in tetragonal phases. Optical studies revealed that the Mn doped TiO 2 nanoparticles have enhanced UV→Vis emission with a broad shoulder at 540nm, signifying induced defects by substituting Ti 4+ ions with Mn 2+ . The X-ray photoelectron spectroscopy and the electron paramagnetic resonance studies revealed the presence of Ti 3+ and singly ionized oxygen vacancies in both pure and Mn doped TiO 2 nanoparticles. Additionally, a hyperfine split due to Mn 2+ ferromagnetic ordering was observed, confirming incorporation of Mn ions into the lattice sites. The sensitivity, selectivity, operating temperature, and response-recovery times were thoroughly evaluated according to the alteration in the materials electrical resistance in the presence of the target gases. Gas sensing studies showed that Mn 2+ doped on the TiO 2 surface improved the NH 3 sensing performance in terms of response, sensitivity and selectivity. The S1 sensing material revealed higher sensitivity of 127.39 at 20 ppm NH 3 gas. The sensing mechanism towards NH 3 gas is also proposed., (Copyright © 2017 Elsevier Inc. All rights reserved.)

Published
2017
Full Text
View/download PDF

14. Effects of metals cadmium and chromium alone and in combination on the liver and kidney tissue of male Spraque-Dawley rats: An ultrastructural and electron-energy-loss spectroscopy investigation.

Author

Venter C, Oberholzer HM, Cummings FR, and Bester MJ

Subjects
Animals, Kidney drug effects, Liver drug effects, Male, Microscopy, Electron, Transmission, Rats, Rats, Sprague-Dawley, Spectroscopy, Electron Energy-Loss, Cadmium toxicity, Chromium toxicity, Kidney ultrastructure, Liver ultrastructure
Abstract

Heavy metal pollution has increased in the last decades. Water sources are contaminated and human exposure is often long term exposure to variable amounts of different metals. In this study, male Sprague-Dawley rats were exposed via oral gavage for 28 days to cadmium (Cd) and chromium (Cr), alone and in combination at concentrations 1000 times the human World Health Organization's acceptable water limits. Rat equivalent dosages were used. Blood markers of liver and kidney function were measured, changes to cellular morphology was determined with transmission electron microscopy and the intracellular metal localisation was determined with the electron energy-loss spectroscopy and energy filtered transmission electron microscopy analysis. Both Cd and Cr caused changes to the nuclear and mitochondrial membranes and irregular chromatin condensation of hepatocytes. Cr exposure caused dilation of the rough endoplasmic reticulum (rER). The combination caused nuclear and mitochondrial membrane damage as well as irregular chromatin condensation. In the kidney tissue, Cd caused irregular chromatin condensation in the cells of the proximal convoluted tubule (PCT). Cr caused changes to the outer nuclear and mitochondrial membrane and chromatin structure. The combination group caused membrane damage, irregular chromatin condensation and rER changes in the PCT. All the metal groups showed damage to the endothelial cells and pedicles, but not to the mesangial cells. Cd and Cr bio-accumulation was observed in the nucleus, mitochondria and rER of the liver and kidney and therefore are responsible for the cellular observed damage that can cause functional changes to the tissues and organs., (© 2017 Wiley Periodicals, Inc.)

Published
2017
Full Text
View/download PDF

15. An in ovo investigation into the hepatotoxicity of cadmium and chromium evaluated with light- and transmission electron microscopy and electron energy-loss spectroscopy.

Author

Venter C, Oberholzer HM, Taute H, Cummings FR, and Bester MJ

Subjects
Animals, Chick Embryo ultrastructure, Metals, Heavy toxicity, Microscopy, Electron, Transmission, Microscopy, Polarization, Models, Animal, South Africa, Spectroscopy, Electron Energy-Loss, Cadmium toxicity, Chick Embryo drug effects, Chromium toxicity, Liver drug effects, Ovum drug effects, Ovum ultrastructure, Water Pollutants, Chemical toxicity
Abstract

Excessive agriculture, transport and mining often lead to the contamination of valuable water resources. Communities using this water for drinking, washing, bathing and the irrigation of crops are continuously being exposed to these heavy metals. The most vulnerable is the developing fetus. Cadmium (Cd) and chrome (Cr) were identified as two of the most prevalent heavy metal water contaminants in South Africa. In this study, chicken embryos at the stage of early organogenesis were exposed to a single dosage of 0.430 μM physiological dosage (PD) and 430 μM (×1000 PD) CdCl2, as well as 0.476 μM (PD) and 746 μM (×1000 PD) K2Cr2O7. At day 14, when all organ systems were completely developed, the embryos were terminated and the effect of these metals on liver tissue and cellular morphology was determined with light- and transmission electron microscopy (TEM). The intracellular localization of these metals was determined using electron energy-loss spectroscopy (EELS). With light microscopy, the PD of both Cd and Cr had no effect on liver tissue or cellular morphology. At ×1000 PD both Cd and Cr caused sinusoid dilation and tissue necrosis. With TEM analysis, Cd exposed hepatocytes presented with irregular chromatin condensation, ruptured cellular membranes and damaged or absent organelles. In contrast Cr caused only slight mitochondrial damage. EELS revealed the bio-accumulation of Cd and Cr along the cristae of the mitochondria and chromatin of the nuclei.

Published
2015
Full Text
View/download PDF

16. Synthetic Hemozoin (β-Hematin) Crystals Nucleate at the Surface of Neutral Lipid Droplets that Control Their Sizes.

Author

Ambele MA, Sewell BT, Cummings FR, Smith PJ, and Egan TJ

Abstract

Emulsions of monopalmitoylglycerol (MPG) and of a neutral lipid blend (NLB), consisting of MPG, monostearoylglycerol, dipalmitoylglycerol, dioleoylglycerol and dilineoylglycerol (4:2:1:1:1), the composition associated with hemozoin from the malaria parasite Plasmodium falciparum , have been used to mediate the formation of β-hematin microcrystals. Transmission electron microscopy (TEM), electron diffraction and electron spectroscopic imaging/electron energy loss spectroscopy (ESI/EELS) have been used to characterize both the lipid emulsion and β-hematin crystals. The latter have been compared with β-hematin formed at a pentanol/aqueous interface and with hemozoin both within P. falciparum parasites and extracted from the parasites. When lipid and ferriprotoporphyrin IX solutions in 1:9 v/v acetone/methanol were thoroughly pre-mixed either using an extruder or ultrasound, β-hematin crystals were found formed in intimate association with the lipid droplets. These crystals resembled hemozoin crystals, with prominent {100} faces. Lattice fringes in TEM indicated that these faces made contact with the lipid surface. The average length of these crystals was 0.62 times the average diameter of NLB droplets and their size distributions were statistically equivalent after 10 min incubation, suggesting that the lipid droplets also controlled the sizes of the crystals. This most closely resembles hemozoin formation in the helminth worm Schistosoma mansoni , while in P. falciparum , crystal formation appears to be associated with the much more gently curved digestive vacuole membrane which apparently leads to formation of much larger hemozoin crystals, similar to those formed at the flat pentanol-water interface.

Published
2013
Full Text
View/download PDF

17. Genetic determinants of ulcerative colitis include the ECM1 locus and five loci implicated in Crohn's disease.

Author

Fisher SA, Tremelling M, Anderson CA, Gwilliam R, Bumpstead S, Prescott NJ, Nimmo ER, Massey D, Berzuini C, Johnson C, Barrett JC, Cummings FR, Drummond H, Lees CW, Onnie CM, Hanson CE, Blaszczyk K, Inouye M, Ewels P, Ravindrarajah R, Keniry A, Hunt S, Carter M, Watkins N, Ouwehand W, Lewis CM, Cardon L, Lobo A, Forbes A, Sanderson J, Jewell DP, Mansfield JC, Deloukas P, Mathew CG, Parkes M, and Satsangi J

Subjects
Autophagy-Related Proteins, Carrier Proteins genetics, Case-Control Studies, Cohort Studies, Colitis, Ulcerative epidemiology, Crohn Disease epidemiology, GTP-Binding Proteins genetics, HLA-A Antigens genetics, Homeodomain Proteins genetics, Humans, Interleukin-12 Subunit p40 genetics, Intracellular Signaling Peptides and Proteins, Nod2 Signaling Adaptor Protein genetics, Protein Serine-Threonine Kinases genetics, Receptors, Interleukin genetics, Risk Factors, Biomarkers metabolism, Colitis, Ulcerative genetics, Crohn Disease genetics, Extracellular Matrix Proteins genetics, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide genetics
Abstract

We report results of a nonsynonymous SNP scan for ulcerative colitis and identify a previously unknown susceptibility locus at ECM1. We also show that several risk loci are common to ulcerative colitis and Crohn's disease (IL23R, IL12B, HLA, NKX2-3 and MST1), whereas autophagy genes ATG16L1 and IRGM, along with NOD2 (also known as CARD15), are specific for Crohn's disease. These data provide the first detailed illustration of the genetic relationship between these common inflammatory bowel diseases.

Published
2008
Full Text
View/download PDF

18. Effect of deposition pressure on the morphology and structural properties of carbon nanotubes synthesized by hot-filament chemical vapor deposition.

Author

Arendse CJ, Malgas GF, Scriba MR, Cummings FR, and Knoesen D

Subjects
Gases chemistry, Hot Temperature, Macromolecular Substances chemistry, Materials Testing, Molecular Conformation, Particle Size, Pressure, Surface Properties, Crystallization methods, Nanotechnology methods, Nanotubes, Carbon chemistry, Nanotubes, Carbon ultrastructure
Abstract

Hot-filament chemical vapor deposition has developed into an attractive method for the synthesis of various carbon nanostructures, including carbon nanotubes. This is primarily due to its versatility, low cost, repeatability, up-scalability, and ease of production. The resulting nano-material synthesized by this technique is dependent on the deposition conditions which can be easily controlled. In this paper we report on the effect of the deposition pressure on the structural properties and morphology of carbon nanotubes synthesized by hot-filament chemical vapor deposition, using Raman spectroscopy and high-resolution scanning electron microscopy, respectively. A 10 nm-thick Ni layer, deposited on a SiO2/Si substrate, was used as catalyst for carbon nanotube growth. Multi-walled carbon nanotubes with diameters ranging from 20-100 nm were synthesized at 500 degrees C with high structural perfection at deposition pressures between 150 and 200 Torr. Raman spectroscopy measurements confirm that the carbon nanotube deposit is homogeneous across the entire substrate area.

Published
2007
Full Text
View/download PDF

19. Sequence variants in the autophagy gene IRGM and multiple other replicating loci contribute to Crohn's disease susceptibility.

Author

Parkes M, Barrett JC, Prescott NJ, Tremelling M, Anderson CA, Fisher SA, Roberts RG, Nimmo ER, Cummings FR, Soars D, Drummond H, Lees CW, Khawaja SA, Bagnall R, Burke DA, Todhunter CE, Ahmad T, Onnie CM, McArdle W, Strachan D, Bethel G, Bryan C, Lewis CM, Deloukas P, Forbes A, Sanderson J, Jewell DP, Satsangi J, Mansfield JC, Cardon L, and Mathew CG

Subjects
Animals, Case-Control Studies, Humans, Mice, Polymorphism, Single Nucleotide, Sequence Analysis, DNA, Autophagy genetics, Crohn Disease genetics, GTP-Binding Proteins genetics, Genetic Predisposition to Disease, Genetic Variation
Abstract

A genome-wide association scan in individuals with Crohn's disease by the Wellcome Trust Case Control Consortium detected strong association at four novel loci. We tested 37 SNPs from these and other loci for association in an independent case-control sample. We obtained replication for the autophagy-inducing IRGM gene on chromosome 5q33.1 (replication P = 6.6 x 10(-4), combined P = 2.1 x 10(-10)) and for nine other loci, including NKX2-3, PTPN2 and gene deserts on chromosomes 1q and 5p13.

Published
2007
Full Text
View/download PDF

20. Sudden bilateral hearing loss and meningitis in adults.

Author

Eden AR and Cummings FR

Subjects
Adult, Bacterial Infections complications, Brain Edema drug therapy, Female, Hearing Loss, Bilateral etiology, Hearing Loss, Sensorineural etiology, Humans, Male, Meningitis complications, Meningitis etiology, Middle Aged, Dexamethasone therapeutic use, Hearing Loss drug therapy, Hearing Loss, Bilateral drug therapy, Hearing Loss, Sensorineural drug therapy
Abstract

Sudden profound bilateral sensorineural hearing loss is a serious complication of bacterial meningitis. With high dosage Dexamethasone it is possible to halt, and, in some instances, to reverse the progression of the hearing loss. The efficacy of treatment depends upon early diagnosis. Hearing may worsen upon steroid cessation and low dosage oral steroid may be required for several months. The eventual hearing loss may be considerably worse than anticipated. Two cases illustrating differing aspects of the disease are described.

Published
1978

Catalog

Books, media, physical & digital resources
See catalog results