Publications by authors named "Timothy Orchard"

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Deciphering the microbiome-metabolome landscape of an inflammatory bowel disease inception cohort.
Shiva T Radhakrishnan, Benjamin H Mullish, Marton L Olbei, Nathan P Danckert, Maria A Valdivia-Garcia, Timothy R Orchard

Gut Microbes· December 2025

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Diverse Phenotypes, Consistent Treatment: A Study of 30 997 South Asian and White Inflammatory Bowel Disease Patients Using the UK Inflammatory Bowel Disease BioResource.
Sharmili Balarajah, Laura Martinez-Gili, James Leslie Alexander, Benjamin Harvey Mullish, Robert William Perry, Timothy Robin Orchard

J Crohns Colitis· January 2025

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UK IBD Twin Registry: Concordance and Environmental Risk Factors of Twins with IBD.
Hannah Gordon, William Blad, Frederik Trier Møller, Timothy Orchard, Alan Steel

Dig Dis Sci· June 2022

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Effects of bowel preparation on intestinal bacterial associated urine and faecal metabolites and the associated faecal microbiome.
Sam T R Powles, Kate I Gallagher, Leo W L Chong, James L Alexander, Benjamin H Mullish, Timothy R Orchard

BMC Gastroenterol· May 2022

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Role of 18F-fluorodeoxyglucose Positron Emission Tomography in the Monitoring of Inflammatory Activity in Crohn's Disease.
Evangelos A Russo, Sameer Khan, Ryan Janisch, Roger N Gunn, Eugenii A Rabiner, Timothy R Orchard

Inflamm Bowel Dis· November 2016

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Analysis of Exhaled Breath Volatile Organic Compounds in Inflammatory Bowel Disease: A Pilot Study.
Lucy C Hicks, Juzheng Huang, Sacheen Kumar, Sam T Powles, Timothy R Orchard

J Crohns Colitis· September 2015

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Association analyses identify 38 susceptibility loci for inflammatory bowel disease and highlight shared genetic risk across populations.
Jimmy Z Liu, Suzanne van Sommeren, Hailiang Huang, Siew C Ng, Rudi Alberts, Timothy R Orchard

Nat Genet· September 2015

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Diarrhea in Crohn’s disease: investigating the role of the ileal hormone fibroblast growth factor 19.
Jonathan D Nolan, Ian M Johnston, Sanjeev S Pattni, Tracy Dew, Timothy R Orchard

J Crohns Colitis· February 2015

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HLA-DQA1-HLA-DRB1 variants confer susceptibility to pancreatitis induced by thiopurine immunosuppressants.
Graham A Heap, Michael N Weedon, Claire M Bewshea, Abhey Singh, Mian Chen, Timothy R Orchard

Nat Genet· October 2014

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Ethnicity differences in genetic susceptibility to ulcerative colitis: a comparison of Indian asians and white northern Europeans.
David G Walker, Horace R T Williams, Aaron S Bancil, Pavanjit Rai, Panajiotis Pantelidis, Timothy R Orchard

Inflamm Bowel Dis· December 2013

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C-reactive protein is a useful predictor of metronidazole treatment failure in mild-to-moderate Clostridium difficile infection.
Hugo A Farne, Natasha K Martin, Janice Main, Timothy Orchard, Jonathan Tyrrell-Price

Eur J Gastroenterol Hepatol· January 2013

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Serum metabolic profiling in inflammatory bowel disease.
Horace R T Williams, James D Willsmore, I Jane Cox, David G Walker, Jeremy F L Cobbold, Timothy R Orchard

Dig Dis Sci· August 2012

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Management of arthritis in patients with inflammatory bowel disease.
Timothy R Orchard

Gastroenterol Hepatol (N Y)· May 2012

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Differences in inflammatory bowel disease phenotype between South Asians and Northern Europeans living in North West London, UK.
David G Walker, Horace R T Williams, Stephen P Kane, Joel E Mawdsley, Jayantha Arnold, Timothy R Orchard

Am J Gastroenterol· July 2011

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Crohn's disease.
Sarah C Mills, Alexander C von Roon, Paris P Tekkis, Timothy R Orchard

BMJ Clin Evid· April 2011

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Crohn's disease.
Sarah C Mills, Alexander C von Roon, Paris P Tekkis, Timothy R Orchard

BMJ Clin Evid· November 2010

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Differences in gut microbial metabolism are responsible for reduced hippurate synthesis in Crohn's disease.
Horace R T Williams, I Jane Cox, David G Walker, Jeremy F L Cobbold, Simon D Taylor-Robinson, Timothy R Orchard

BMC Gastroenterol· September 2010

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Metabonomics in ulcerative colitis.
Horace R T Williams, David G Walker, Bernard V North, Simon D Taylor-Robinson, Timothy R Orchard

J Proteome Res· May 2010

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Survey on the use of adalimumab as maintenance therapy in Crohn's disease in England and Ireland.
Evangelos A Russo, Marietta Iacucci, James O Lindsay, Simon Campbell, Ailsa Hart, Timothy Orchard

Eur J Gastroenterol Hepatol· March 2010

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Characterization of inflammatory bowel disease with urinary metabolic profiling.
Horace R T Williams, I Jane Cox, David G Walker, Bernard V North, Venisha M Patel, Timothy R Orchard

Am J Gastroenterol· June 2009

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The effect of smoking after surgery for Crohn's disease: a meta-analysis of observational studies.
George E Reese, Theodore Nanidis, Catherine Borysiewicz, Takayuki Yamamoto, Timothy Orchard

Int J Colorectal Dis· December 2008

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Extraintestinal manifestations of inflammatory bowel disease.
Horace Williams, David Walker, Timothy R Orchard

Curr Gastroenterol Rep· December 2008

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Crohn's disease.
Alexander C von Roon, George E Reese, Timothy R Orchard, Paris P Tekkis

BMJ Clin Evid· November 2007

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Diagnostic precision of anti-Saccharomyces cerevisiae antibodies and perinuclear antineutrophil cytoplasmic antibodies in inflammatory bowel disease.
George E Reese, Vasilis A Constantinides, Constantinos Simillis, Ara W Darzi, Timothy R Orchard

Am J Gastroenterol· October 2006

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Uveitis and erythema nodosum in inflammatory bowel disease: clinical features and the role of HLA genes.
Timothy R Orchard, C N Chua, Tariq Ahmad, Hung Cheng, Kenneth I Welsh

Gastroenterology· September 2002

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