Research Topics
Genomes and GenesSpecies | J LittleSummaryAffiliation: University of Ottawa Country: Canada Publications
| Collaborators
|
Detail Information
Publications
The epidemiologic approach to pharmacogenomicsJulian Little
Department of Epidemiology and Community Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, Ontario K1H 8M5, Canada
Am J Pharmacogenomics 5:1-20. 2005....
How many genes underlie the occurrence of common complex diseases in the population?Quanhe Yang
National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention CDC, Atlanta, GA 30333, USA
Int J Epidemiol 34:1129-37. 2005..It is not clear how many genes are necessary to account for an appreciable population-attributable fraction of these diseases...
Consent for newborn screening: the attitudes of health care providersF A Miller
University of Toronto, Toronto, Ont, Canada
Public Health Genomics 13:181-90. 2010..As newborn screening (NBS) expands to meet a broader definition of benefit, the scope of parental consent warrants reconsideration...
Systematic meta-analyses and field synopsis of genetic association studies in colorectal cancerEvropi Theodoratou
Centre for Population Health Sciences, University of Edinburgh, UK
J Natl Cancer Inst 104:1433-57. 2012..chs.med.ed.ac.uk/CRCgene/)...
The utility and predictive value of combinations of low penetrance genes for screening and risk prediction of colorectal cancerSteven J Hawken
Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, ON, Canada
Hum Genet 128:89-101. 2010..Further genotyping and many more samples will be required, and indeed the discovery of many more risk loci associated with CRC before the question of the potential utility of germline genomic profiling can be definitively answered...
Study protocol: the empirical investigation of methods to correct for measurement error in biobanks with dietary assessmentDerrick A Bennett
Clinical Trial Service Unit and Epidemiological Studies Unit CTSU, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7LF, UK
BMC Med Res Methodol 11:135. 2011....
On track? Using the Human Genome Epidemiology RoadmapJulian Little
Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, Ont, Canada
Public Health Genomics 13:256-66. 2010....
Invited commentary: maternal effects in preterm birth--effects of maternal genotype, mitochondrial DNA, imprinting, or environment?Julian Little
Department of Epidemiology and Community Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario K1H 8M5, Canada
Am J Epidemiol 170:1382-5. 2009....
STrengthening the REporting of Genetic Association Studies (STREGA): an extension of the STROBE statementJulian Little
Canada Research Chair in Human Genome Epidemiology, University of Ottawa, Ottawa, Ontario, Canada
PLoS Med 6:e22. 2009..The STREGA recommendations do not prescribe or dictate how a genetic association study should be designed but seek to enhance the transparency of its reporting, regardless of choices made during design, conduct, or analysis...
CYP17 and breast cancer: no overall effect, but what about interactions?Julian Little
Canada Research Chair in Human Genome Epidemiology, Department of Epidemiology and Community Medicine, University of Ottawa, Ontario, Canada
Breast Cancer Res 7:238-42. 2005....
Strengthening the reporting of genetic association studies (STREGA): an extension of the strengthening the reporting of observational studies in epidemiology (STROBE) statementJulian Little
Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, Ontario, Canada
J Clin Epidemiol 62:597-608.e4. 2009..The STREGA recommendations do not prescribe or dictate how a genetic association study should be designed, but seek to enhance the transparency of its reporting, regardless of choices made during design, conduct, or analysis...
STrengthening the REporting of Genetic Association Studies (STREGA)--an extension of the STROBE statementJulian Little
Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, Ontario, Canada
Genet Epidemiol 33:581-98. 2009..The STREGA recommendations do not prescribe or dictate how a genetic association study should be designed but seek to enhance the transparency of its reporting, regardless of choices made during design, conduct, or analysis...
STrengthening the REporting of Genetic Association studies (STREGA): an extension of the STROBE StatementJulian Little
University of Ottawa, Ottawa, Ontario, Canada
Ann Intern Med 150:206-15. 2009..The STREGA recommendations do not prescribe or dictate how a genetic association study should be designed but seek to enhance the transparency of its reporting, regardless of choices made during design, conduct, or analysis...
Strengthening the reporting of genetic association studies (STREGA): an extension of the STROBE statementJulian Little
Canada Research Chair in Human Genome Epidemiology, Toronto, ON, Canada
Eur J Epidemiol 24:37-55. 2009..The STREGA recommendations do not prescribe or dictate how a genetic association study should be designed but seek to enhance the transparency of its reporting, regardless of choices made during design, conduct, or analysis...
Strengthening the reporting of genetic association studies (STREGA): an extension of the STROBE StatementJulian Little
Canada Research Chair in Human Genome Epidemiology, Ottawa, Canada
Hum Genet 125:131-51. 2009..The STREGA recommendations do not prescribe or dictate how a genetic association study should be designed but seek to enhance the transparency of its reporting, regardless of choices made during design, conduct, or analysis...
Canada: public health genomicsJ Little
Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, Ont, Canada
Public Health Genomics 12:112-20. 2009..Several large-scale population cohort studies are underway or planned, with initiatives to harmonize their conduct and the management of ethical issues, both within Canada and with similar projects in other countries...
STrengthening the REporting of Genetic Association studies (STREGA)--an extension of the STROBE statementJulian Little
Canada Research Chair in Human Genome Epidemiology, Ottawa, ON, Canada
Eur J Clin Invest 39:247-66. 2009..The STREGA recommendations do not prescribe or dictate how a genetic association study should be designed, but seek to enhance the transparency of its reporting, regardless of choices made during design, conduct or analysis...
Colorectal cancer and genetic polymorphisms of CYP1A1, GSTM1 and GSTT1: a case-control study in the Grampian region of ScotlandJulian Little
Epidemiology Group, Department of Public Health, University of Aberdeen, Polwarth Building, Foresterhill, Aberdeen, UK
Int J Cancer 119:2155-64. 2006..There was no evidence of interaction between CYP1A1 and smoking, and no evidence of interaction between the GSTM1 or GSTT1 polymorphisms and smoking, meat intake, green leafy vegetable intake, CYP1A1 variants or each other...
Folate and clefts of the lip and palate--a U.K.-based case-control study: Part II: Biochemical and genetic analysisJ Little
Human Genome Epidemiology, University of Ottawa, Ottawa, Ontario, Canada
Cleft Palate Craniofac J 45:428-38. 2008..To investigate associations between nonsyndromic oral clefts and biochemical measures of folate status and the MTHFR C677T variant in the United Kingdom, where there has been no folic acid fortification program...
Cytochrome P-450 1A1 gene polymorphisms and risk of breast cancer: a HuGE reviewL F Masson
Epidemiology Group, Department of Public Health, University of Aberdeen, Aberdeen, Scotland
Am J Epidemiol 161:901-15. 2005....
Psychological effects of a low-grade abnormal cervical smear test result: anxiety and associated factorsN M Gray
Department of General Practice and Primary Care, Foresterhill Health Centre, University of Aberdeen and Grampian University Hospitals, Aberdeen, UK
Br J Cancer 94:1253-62. 2006....
Folate and clefts of the lip and palate--a U.K.-based case-control study: Part I: Dietary and supplemental folateJ Little
Human Genome Epidemiology, University of Ottawa, Ottawa, Ontario, Canada
Cleft Palate Craniofac J 45:420-7. 2008....
The role of human papillomavirus testing in the management of women with low-grade abnormalities: multicentre randomised controlled trialS Cotton
Department of Public Health, University of Aberdeen, Aberdeen, UK
BJOG 117:645-59. 2010....
Lifestyle and socio-demographic factors associated with high-risk HPV infection in UK womenS C Cotton
Department of Public Health, University of Aberdeen, Polwarth Building, Foresterhill, Aberdeen, Scotland
Br J Cancer 97:133-9. 2007..In stratified analyses, current smear status and age remained associated with hrHPV infection. Data of this type are relevant to the debate on human papillomavirus (HPV) testing in screening and development of HPV vaccination programmes...
Folate and breast cancer: the role of polymorphisms in methylenetetrahydrofolate reductase (MTHFR)L Sharp
Epidemiology Group, Department of Medicine and Therapeutics, University of Aberdeen, Foresterhill House Annex, Foresterhill, Aberdeen AB25 2ZD, Scotland, UK
Cancer Lett 181:65-71. 2002..Patterns in risk with regard to genotype and folate combinations are broadly similar those reported for colorectal neoplasia. The roles of MTHFR and folate in breast cancer aetiology are likely to be complex...
CYP17 gene polymorphisms: prevalence and associations with hormone levels and related factors. a HuGE reviewL Sharp
Epidemiology Group, Department of Medicine and Therapeutics, University of Aberdeen, Aberdeen, United Kingdom
Am J Epidemiol 160:729-40. 2004..Further investigation of relations between genotype and hormone levels, exogenous hormone use, and markers of hormonal status may advance understanding of hormonally mediated diseases...
Family history tools in primary care: does one size fit all?B J Wilson
University of Ottawa, Department of Epidemiology and Community Medicine, 451 Smyth Road, Ottawa, Ontario, Canada
Public Health Genomics 15:181-8. 2012..For FHH tools, it is unlikely that 'one size fits all', although appreciation of different purposes, users and contexts should facilitate the development of different applications from single FHH platforms...
A high frequency of the MTHFR 677C>T polymorphism in Scottish women with epilepsy: possible role in pathogenesisJ C S Dean
University of Aberdeen, Aberdeen, Scotland, United Kingdom
Seizure 17:269-75. 2008..The MTHFR 677C>T polymorphism may be a susceptibility factor for epilepsy, and its higher frequency in women with epilepsy may contribute to the increased risk of malformation in children of women with epilepsy...
Reporting, appraising, and integrating data on genotype prevalence and gene-disease associationsJulian Little
Epidemiology Group, Department of Medicine and Therapeutics, University of Aberdeen, Aberdeen, Scotland
Am J Epidemiol 156:300-10. 2002....
Comprehensive cancer control-research & development: knowing what we do and doing what we knowJon F Kerner
Canadian Partnership Against Cancer, 1 University Avenue, Suite 300, Toronto, Ontario, Canada M5J 2P1
Tumori 95:610-22. 2009....
Clinical obligations and public health programmes: healthcare provider reasoning about managing the incidental results of newborn screeningF A Miller
Department of Health Policy, Management and Evaluation, University of Toronto, Ontario, Canada
J Med Ethics 35:626-34. 2009..Healthcare providers play a key role in educating families or caring for screened infants and have strong beliefs about the management of incidental results...
Polymorphisms in the methylenetetrahydrofolate reductase (MTHFR) gene, intakes of folate and related B vitamins and colorectal cancer: a case-control study in a population with relatively low folate intakeLinda Sharp
Department of Medicine and Therapeutics, University of Aberdeen, Aberdeen AB25 2ZD, UK
Br J Nutr 99:379-89. 2008..Investigation of particular folate vitamers (for example, tetrahydrofolate, 5,10-methylenetetrahydrofolate) may help clarify carcinogenesis pathways...
Dietary flavonoid intake and colorectal cancer: a case-control studyJanet A M Kyle
Rowett Institute of Nutrition and Health, University of Aberdeen, Aberdeen AB21 9SB, UK
Br J Nutr 103:429-36. 2010..5; 95 % CI 0.3, 0.8; P(trend) < 0.01). We concluded that flavonols, specifically quercetin, obtained from non-tea components of the diet may be linked with reduced risk of developing colon cancer...
Smoking and orofacial clefts: a United Kingdom-based case-control studyJ Little
University of Aberdeen, Aberdeen, Scotland
Cleft Palate Craniofac J 41:381-6. 2004..To investigate the association between smoking and orofacial clefts in the United Kingdom...
Developing a questionnaire to measure the psychosocial impact of an abnormal cervical smear result and its subsequent management: the TOMBOLA (Trial of Management of Borderline and Other Low-grade Abnormal Smears) trialN M Gray
Department of Public Health, University of Aberdeen, Foresterhill, Aberdeen, UK
Qual Life Res 14:1553-62. 2005..The POSM will enable comparison of the alternative management policies for low-grade cervical smears in terms of the benefits (or otherwise) perceived by the women managed by these policies...
Trial of management of borderline and other low-grade abnormal smears (TOMBOLA): Trial designSeonaidh C Cotton
Department of Public Health, University of Aberdeen, Polwarth Building, Foresterhill, Aberdeen, AB25 2ZD, UK
Contemp Clin Trials 27:449-71. 2006..This paper describes the design of the trial, and discusses the rationale underlying aspects of the design and the challenges faced in designing and implementing the trial...
Polymorphisms in genes involved in folate metabolism and colorectal neoplasia: a HuGE reviewLinda Sharp
Epidemiology Group, Department of Medicine and Therapeutics, University of Aberdeen, Scotland, UK
Am J Epidemiol 159:423-43. 2004..Overall, the roles of folate-pathway genes, folate, and related dietary factors in colorectal neoplasia are complex. Research priorities are suggested...
Colorectal neoplasia and genetic polymorphisms associated with folate metabolismJ Little
Department of Medicine and Therapeutics, University of Aberdeen Medical School, Polwarth Building, Foresterhill, Aberdeen, Scotland, AB25 2ZD, UK
Eur J Cancer Prev 11:105-10. 2002
Epidemiology of neurodevelopmental disorders in childrenJ Little
Department of Medicine and Therapeutics, Epidemiology Group, Aberdeen, UK
Prostaglandins Leukot Essent Fatty Acids 63:11-20. 2000..The analytical epidemiology of other neurodevelopmental disorders is less well understood. Study design issues are discussed in relation to mental and behavioural disorders...
Systematic review of cancer treatment programmes in remote and rural areasN C Campbell
Department of General Practice and Primary Care, Foresterhill Health Centre, Aberdeen, UK
Br J Cancer 80:1275-80. 1999..Tele-oncology, by which some consultations are conducted using televideo, may be an acceptable adjunct. Larger and more methodologically robust studies are justified and should be conducted...
Maternal medication use and the risk of brain tumors in the offspring: the SEARCH international case-control studyAmanda H Cardy
Department of Public Health, University of Aberdeen, Aberdeen AB25 2ZD, Scotland, United Kingdom
Int J Cancer 118:1302-8. 2006..This is the largest case-control study of CBT and maternal medications to date. Our data provide little support for an association between maternal use of medications that may form NOC and subsequent development of CBT in the offspring...
Folate intake, markers of folate status and oral clefts: is the evidence converging?Candice Y Johnson
Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, Canada
Int J Epidemiol 37:1041-58. 2008..The purpose of this systematic review and meta-analysis was to assemble evidence on the role of folate in the aetiology of cleft lip with or without cleft palate (CL/P) and cleft palate only (CPO)...
Colon cancer and genetic variation in folate metabolism: the clinical bottom lineJulian Little
Epidemiology Group, Department of Medicine and Therapeutics, University of Aberdeen, UK
J Nutr 133:3758S-3766S. 2003....
Fetal anticonvulsant syndromes and polymorphisms in MTHFR, MTR, and MTRRJohn Dean
Department of Medical Genetics, Clinical Genetics Centre, University of Aberdeen, Aberdeen, Scotland, United Kingdom
Am J Med Genet A 143:2303-11. 2007..MTR 2756A > G and MTRR 66A > G genotype frequencies in children with FACS and neurodevelopmental disorder were different from those in healthy blood donor controls...
Tobacco smoking and oral clefts: a meta-analysisJulian Little
Department of Medicine and Therapeutics, University of Aberdeen, Foresterhill, Scotland
Bull World Health Organ 82:213-8. 2004..CONCLUSION: The evidence of an association between maternal tobacco smoking and orofacial clefts is strong enough to justify its use in anti-smoking campaigns...
Associations between two common variants C677T and A1298C in the methylenetetrahydrofolate reductase gene and measures of folate metabolism and DNA stability (strand breaks, misincorporated uracil, and DNA methylation status) in human lymphocytes in vivoSabrina Narayanan
Division of Cellular Integrity, Rowett Research Institute, Bucksburn, Aberdeen, United Kingdom
Cancer Epidemiol Biomarkers Prev 13:1436-43. 2004....
Low dose aspirin, COX-inhibition and chemoprevention of colorectal cancerRobert Benamouzig
Department of Gastro enterology, Hopital Avicenne, 125 rue de Stalingrad, 93009 Bobigny Cedex, France
Curr Top Med Chem 5:493-503. 2005..Four RCTs of the effect of aspirin on adenoma recurrence are available. Other trials are currently underway...
The role of cytokine gene polymorphisms in colorectal cancer and their interaction with aspirin use in the northeast of ScotlandMairi Macarthur
Department of Medicine and Therapeutics, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, United Kingdom
Cancer Epidemiol Biomarkers Prev 14:1613-8. 2005..These results suggest that host genetics may play a role in predicting response to chemopreventive strategies. Confirmation of these findings in other populations is required...
Daily soluble aspirin and prevention of colorectal adenoma recurrence: one-year results of the APACC trialRobert Benamouzig
Department of Gastroenterology, Avicenne Hospital, AP-HP, Paris 13 University, Bobigny Cedex, France
Gastroenterology 125:328-36. 2003..01), and initial adenomatous polyp burden less than 10 mm (P = 0.001). CONCLUSIONS: Daily soluble aspirin is associated with a reduction in the risk for recurrent adenomas found at colonoscopy 1 year after starting treatment...
[The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies]Erik von Elm
Institute of Social and Preventive Medicine ISPM, University of Bern, Berna, Suiza
Rev Esp Salud Publica 82:251-9. 2008..We hope that the STROBE statement will contribute to improving the quality of reporting of observational studies...
Asymptomatic colorectal neoplasia and fecal characteristics: a case-control study of subjects participating in the nottingham fecal occult blood screening trialJulian Little
Epidemiology Group, Department of Medicine and Therapeutics, Aberdeen University Medical School, United Kingdom
Dis Colon Rectum 45:1233-41. 2002..CONCLUSION: The study does not support an association between colorectal cancer and fecal bile acids or pH. However, there is evidence that increases in major bile acids are associated with villous adenomas...
Polymorphisms of adrenergic receptors and the risk of heart failureJulian Little
N Engl J Med 348:468-70; author reply 468-70. 2003
Mendelian randomisation: a new spin or real progress?Julian Little
Office of Genomics and Disease Prevention, Centers for Disease Control and Prevention, Atlanta, GA 30341, USA
Lancet 362:930-1. 2003
An epidemiologic assessment of genomic profiling for measuring susceptibility to common diseases and targeting interventionsMuin J Khoury
Office of Genomics and Disease Prevention, Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
Genet Med 6:38-47. 2004..CONCLUSION: To assess the value of genomic profiling, well-designed epidemiologic studies are needed to quantify disease risks, in addition to costs, benefits, and risks for testing and interventions...
Occupational risk factors for low grade and high grade glioma: results from an international case control study of adult brain tumoursBrigitte Schlehofer
Unit of Environmental Epidemiology, German Cancer Research Centre, Heidelberg, Germany
Int J Cancer 113:116-25. 2005..Although some other point estimates were elevated, they lacked statistical significance. The results do not provide evidence of a strong association between occupational exposures and glioma development...
Folate, DNA stability and colo-rectal neoplasiaSusan J Duthie
Division of Cellular Integrity, Rowett Research Institute, Greenburn Road, Bucksburn, Aberdeen AB21 9SB, UK
Proc Nutr Soc 63:571-8. 2004..Evidence from animal and human studies is presented here in support of folate acting to maintain genomic stability through both these mechanisms...
A road map for efficient and reliable human genome epidemiologyJohn P A Ioannidis
Clinical and Molecular Epidemiology Unit, Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, and Biomedical Research Institute, Foundation for Research and Technology Hellas, Ioannina 45110, Greece
Nat Genet 38:3-5. 2006..Systematic reviews will be expanded to include more meta-analyses of individual-level data and prospective meta-analyses. Field synopses will offer regularly updated overviews...
Prevention of orofacial clefts: does pregnancy planning have a role?Peter A Mossey
University of Dundee, Dental School, Scotland, UK
Cleft Palate Craniofac J 44:244-50. 2007..To investigate the association between pregnancy planning and orofacial clefts in the United Kingdom...
United Kingdom cervical cancer screening and the costs of time and travelClaire Woolley
University of Nottingham, UK
Int J Technol Assess Health Care 23:232-9. 2007....
Reporting of systematic reviews: the challenge of genetic association studiesMuin J Khoury
PLoS Med 4:e211. 2007
Turning the pump handle: evolving methods for integrating the evidence on gene-disease associationJulian P T Higgins
Am J Epidemiol 166:863-6. 2007
Assessment of cumulative evidence on genetic associations: interim guidelinesJohn P A Ioannidis
Clinical and Molecular Epidemiology Unit, University of Ioannina School of Medicine, Ioannina 45110, Greece
Int J Epidemiol 37:120-32. 2008..Future empirical research and consensus development are needed to develop an integrated model for combining epidemiological and biological evidence in the rapidly evolving field of investigation of genetic factors...
Genome-wide association studies for complex traits: consensus, uncertainty and challengesMark I McCarthy
Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
Nat Rev Genet 9:356-69. 2008....
[The Strengthening the Reporting of Observational Studies in Epidemiology [STROBE] statement: guidelines for reporting observational studies]Erik von Elm
Institute of Social and Preventive Medicine ISPM, University of Bern, Berna, Switzerland
Gac Sanit 22:144-50. 2008..We hope that the STROBE statement will contribute to improving the quality of reporting of observational studies...
Relation of childhood brain tumors to exposure of parents and children to tobacco smoke: the SEARCH international case-control study. Surveillance of Environmental Aspects Related to Cancer in HumansGraziella Filippini
Neuroepidemiology Research Unit, Istituto Nazionale Neurologico C Besta, Milan, Italy
Int J Cancer 100:206-13. 2002..These results did not change considering the child's age at diagnosis, the histologic type of tumor or center...
