By Professor Emad El-Omar

Journal articles

McColl K; Murray L; El-Omar E; Dickson A; El-Nujumi A; Wirz A; Kelman A; Penny C; Knill-Jones R; Hilditch T, 1998, 'Symptomatic benefit from eradicating Helicobacter pylori infection in patients with nonulcer dyspepsia', New England Journal of Medicine, 339, pp. 1869 - 1874, http://dx.doi.org/10.1056/NEJM199812243392601

McColl KEL; Gillen D; El-Omar E; Ardill J, 1998, 'Effect of antral atrophy on gastric function in h. pylori infection: Relevance to progression to pangastritis', Zeitschrift fur Gastroenterologie, 36, pp. 1090

El-Omar E; Oien K; El-Nujumi A; Wirz A; Gillen D; Williams C; Ardill JES; Fullarton G; McColl KEL, 1998, 'Prevalence of atrophy and hypochlorhydria is high in gastric cancer relatives and related to H-pylori status.', GASTROENTEROLOGY, 114, pp. A590 - A590, http://dx.doi.org/10.1016/S0016-5085(98)82402-5

McColl KEL; Murray LS; El-Omar E; Kelman AW; Dickson A; El-Nujumi A; Wirz A; Knill-Jones R; Penney C; Cochrane K; Danesh B; Gaw N; Wilson F, 1998, 'UK MRC trial of H-pylori eradication therapy for non-ulcer ulcer dyspepsia.', GASTROENTEROLOGY, 114, pp. A222 - A222, http://dx.doi.org/10.1016/S0016-5085(98)80900-1

McColl KEL; El-Omar E; Gillen D; Oien K, 1998, 'H-pylori-associated hypochlorhydria - Reply', GASTROENTEROLOGY, 114, pp. 620 - 621, http://dx.doi.org/10.1016/S0016-5085(98)70559-1

El-Omar E; Oien K; El-Nujumi A; Wirz A; Gillen D; Williams C; Ardill JES; Fullarton G; Mccoll KEL, 1998, 'Prevalence of atrophy and hypochlorhydria is high in gastric cancer relatives and related to H-pylori status.', GUT, 42, pp. A51 - A51, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000072567900205&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Mccoll KEL; Murray LS; El-Omar E; Kelman AW; Dickson A; El-Nujumi A; Wirz A; Knill-Jones R; Penney C; Cochrane K; Danesh B; Gaw N; Wilson F, 1998, 'UK MRC trial of H-pylori eradication therapy for non-ucler dyspepsia', GUT, 42, pp. A3 - A3, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000072567900011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

McColl KEL; El-Nujumi A; Murray LS; El-Omar EM; Dickson A; Kelman AW; Hilditch TE, 1998, 'Assessment of symptomatic response as predictor of Helicobacter pylori status following eradication therapy in patients with ulcer', Gut, 42, pp. 618 - 622, http://dx.doi.org/10.1136/gut.42.5.618

Beales ILP; McColl KEL; El-Omar E; Gillen D; Oien K, 1998, 'H. pylori-associated hypochlorhydria [2] (multiple letters)', Gastroenterology, 114, pp. 618 - 620, http://dx.doi.org/10.1016/s0016-5085(98)70558-x

McColl KEL; El-Omar E; Gillen D, 1998, 'Interactions between H. pylori infection, gastric acid secretion and anti-secretory therapy', British Medical Bulletin, 54, pp. 121 - 138, http://dx.doi.org/10.1093/oxfordjournals.bmb.a011663

Gillen D; El-Omar EM; Wirz AA; Ardill JES; McColl KEL, 1998, 'The acid response to gastrin distinguishes duodenal ulcer patients from Helicobacter pylori-infected healthy subjects', Gastroenterology, 114, pp. 50 - 57, http://dx.doi.org/10.1016/S0016-5085(98)70632-8

McColl KEL; EI-Nujumi A; Murray LS; El-Omar EM; Dickson A; Kelman AW; Hilditch TE, 1998, 'Assessment of symptomatic response as predictor of Helicobacter pylori status following eradication therapy in patients with ulcer', European Journal of Gastroenterology & Hepatology, 10, pp. 626 - 626, http://dx.doi.org/10.1097/00042737-199807000-00025

McColl KEL; El-Omar EM; Gillen D, 1997, 'Alterations in gastric physiology in Helicobacter pylori infection: Causes of different diseases or all epiphenomena?', Italian Journal of Gastroenterology and Hepatology, 29, pp. 459 - 464

McColl KEL; El-Omar E; Gillen D; Banerjee S, 1997, 'The role of Helicobacter pylori in the pathophysiology of duodenal ulcer disease and gastric cancer', Seminars in Gastrointestinal Disease, 8, pp. 142 - 155

McColl KEL; El-Omar EM; Gillen D, 1997, 'The role of H. Pylori infection in the pathophysiology of duodenal ulcer disease', Journal of Physiology and Pharmacology, 48, pp. 287 - 295

El-Omar EM; Oien K; El-Nujumi A; Gillen D; Wirz A; Dahill S; Williams C; Ardill JES; McColl KEL, 1997, 'Helicobacter pylori infection and chronic gastric acid hyposecretion', Gastroenterology, 113, pp. 15 - 24, http://dx.doi.org/10.1016/S0016-5085(97)70075-1

Talley NJ; Agreus L; Van Zanten SV; McColl KEL; El-Omar EM; Banerjee S; Wirz A, 1997, 'The Glasgow Dyspepsia Severity Score - A tool for the global measurement of dyspepsia (multiple letters) [1]', European Journal of Gastroenterology and Hepatology, 9, pp. 413 - 414, http://dx.doi.org/10.1097/00042737-199704000-00018

McColl KEL; El-Nujumi A; Murray L; El-Omar E; Gillen D; Dickson A; Kelman A; Hilditch TE, 1997, 'The Helicobacter pylori breath test: A surrogate marker for peptic ulcer disease in dyspeptic patients', Gut, 40, pp. 302 - 306, http://dx.doi.org/10.1136/gut.40.3.302

El-Omar E; Banerjee S; Wirz A; Penman I; Ardill JES; McColl KEL, 1996, 'Marked rebound acid hypersecretion after treatment with ranitidine', American Journal of Gastroenterology, 91, pp. 355 - 359

Graham DY; El-Omar E; Gillen G; McColl KEL, 1996, 'Gastrin-releasing peptide, acid secretion, Helicobacter pylori, and duodenal ulcer: Another epiphenomenon? [4]', Gastroenterology, 110, pp. 1325 - 1326, http://dx.doi.org/10.1053/gast.1996.v110.agast961325

Banerjee S; El-Omar E; Mowat A; Ardill JES; Park RHR; Watson W; Beattie AD; McColl KEL, 1996, 'Sucralfate suppresses Helicobacter pylori infection and reduces gastric acid secretion by 50% in patients with duodenal ulcer', Gastroenterology, 110, pp. 717 - 724, http://dx.doi.org/10.1053/gast.1996.v110.pm8608880

El-Omar EM; Banerjee S; Wirz A; McColl KEL, 1996, 'The Glasgow Dyspepsia Severity Score - A tool for the global measurement of dyspepsia', European Journal of Gastroenterology and Hepatology, 8, pp. 967 - 971, http://dx.doi.org/10.1097/00042737-199610000-00006

El-Omar E; Penman I; Ardill JES; McColl KEL, 1995, 'A substantial proportion of non-ulcer dyspepsia patients have the same abnormality of acid secretion as duodenal ulcer patients', Gut, 36, pp. 534 - 538, http://dx.doi.org/10.1136/gut.36.4.534

McCOLL KEL; EL‐OMAR E, 1995, 'Gastrin releasing peptide and its value in assessing gastric secretory function', Alimentary Pharmacology & Therapeutics, 9, pp. 341 - 347, http://dx.doi.org/10.1111/j.1365-2036.1995.tb00392.x

El-Omar EM; Penman ID; Ardill JES; Chittajallu RS; Howie C; McColl KEL, 1995, 'Helicobacter pylori infection and abnormalities of acid secretion in patients with duodenal ulcer disease', Gastroenterology, 109, pp. 681 - 691, http://dx.doi.org/10.1016/0016-5085(95)90374-7

Penman ID; El-Omar E; McColl KEL, 1995, 'Reply', Gastroenterology, 108, pp. 619, http://dx.doi.org/10.1016/0016-5085(95)90114-0

El-Omar E; Wirz A; McColl KEL, 1995, 'Effect of H pylori eradication on the severity of dyspeptic symptoms in du patients - a one year follow up study', Gastroenterology, 108, pp. A88 - A88, http://dx.doi.org/10.1016/0016-5085(95)23016-5

El-Omar E; Banerjee S; Wirz A; McColl KEL, 1995, 'H pylori infection and dyspepsia within the general population', Gastroenterology, 108, pp. A88 - A88, http://dx.doi.org/10.1016/0016-5085(95)23015-7

McColl KEL; El-Omar E; Banerjee S; Savarino V; Vigneri S; Sandro Mela G; Termini R; Celle G; Goddard AF, 1994, 'Duodenal ulcer healing drugs', The Lancet, 343, pp. 915 - 916, http://dx.doi.org/10.1016/S0140-6736(94)90033-7

Louw JA; Marks IN; El-Omar E; McColl K, 1994, 'Helicobacter pylori eradication, duodenal ulcer healing, and gastric secretory state [1]', Gut, 35, pp. 571, http://dx.doi.org/10.1136/gut.35.4.571

El-Omar E; Penman I; Cruikshank G; Dover S; Banerjee S; Williams C; McColl KEL, 1994, 'Low prevalence of Helicobacter pylori in inflammatory bowel disease: Association with sulphasalazine', Gut, 35, pp. 1385 - 1388, http://dx.doi.org/10.1136/gut.35.10.1385

Penman ID; El-Omar E; Ardill JES; McGregor JR; Galloway DJ; O'Dwyer PJ; McColl KEL, 1994, 'Plasma gastrin concentrations are normal in patients with colorectal neoplasia and unaltered following tumor resection', Gastroenterology, 106, pp. 1263 - 1270, http://dx.doi.org/10.1016/0016-5085(94)90018-3

El-Omar EM; Penman ID; Spence E; Ardill JES; McColl KEL, 1994, 'The GRP test: A new clinical test of acid secretion — reproducibility data', European Journal of Gastroenterology and Hepatology, 6, pp. 417 - 421

, 1994, 'Reply', Gut, 35, pp. 571 - 571, http://dx.doi.org/10.1136/gut.35.4.571-a

McColl KEL; El-Nujumi AM; Chittajallu RS; Dahill SW; Dorrian CA; El-Omar E; Penman I; Fitzsimons EJ; Drain J; Graham H; Ardill JES; Bessent R, 1993, 'A study of the pathogenesis of Helicobacter pylon negative chronic duodenal ulceration', Gut, 34, pp. 762 - 768

El-Omar E; Penman I; Dorrian CA; Ardill JES; McColl KEL, 1993, 'Eradicating Helicobacter pylon infection lowers gastrin mediated acid secretion by two thirds in patients with duodenal ulcer', Gut, 34, pp. 1060 - 1065, http://dx.doi.org/10.1136/gut.34.8.1060

Penman ID; El-Omar E; McGregor JR; Hillan KJ; O'Dwyer PJ; McColl KEL, 1993, 'Omeprazole inhibits colorectal carcinogenesis induced by azoxymethane in rats', Gut, 34, pp. 1559 - 1565, http://dx.doi.org/10.1136/gut.34.11.1559

Anthony R; El‐Omar E; Lappin DF; Macsween RNM; Whaley K, 1989, 'Regulation of hepatic synthesis of C3 and C4 during the acute‐phase response in the rat', European Journal of Immunology, 19, pp. 1405 - 1412, http://dx.doi.org/10.1002/eji.1830190809

McColl K; Thompson G; el Omar E; Moore M; Park B; Brodie M, 1987, 'Effect of rifampicin on haem and bilirubin metabolism in man.', British Journal of Clinical Pharmacology, 23, pp. 553 - 559, http://dx.doi.org/10.1111/j.1365-2125.1987.tb03091.x

McColl KEL; Thompson GG; Omar EEL; Moore MR; Goldberg A, 1987, 'Porphyrin metabolism and haem biosynthesis in Gilbert's syndrome', Gut, 28, pp. 125 - 130

Conference Papers

Shen S; Jackson M; Khatiwada S; Raposo A; Vijayan A; Rajapakse J; El-Omar E; Behary J; Zekry A, 2023, 'IDDF2023-ABS-0223 Modulating the gut microbiota alters the gut-liver immune environment in a preclinical model of HCC', in Gut – IDDF Young Investigator Award, BMJ Publishing Group Ltd and British Society of Gastroenterology, pp. A14.1 - A14, presented at Abstracts of the International Digestive Disease Forum (IDDF), Hong Kong, 10–11 June 2023, http://dx.doi.org/10.1136/gutjnl-2023-iddf.6

Pandey D; Szcczesniak M; Maclean J; Zhang F; Yim H; El-Omar E; Graham P; Wu P, 2023, 'IDDF2023-ABS-0249 Implications of oro-pharyngeal dysbiosis in head and neck cancer: oral microbiome and chemoradiation-related complications', in Basic Gastroenterology, BMJ Publishing Group Ltd and British Society of Gastroenterology, pp. A114 - A116, presented at Abstracts of the International Digestive Disease Forum (IDDF), Hong Kong, 10–11 June 2023, http://dx.doi.org/10.1136/gutjnl-2023-iddf.101

Zhao R; Coker O; Wu J; Zhao L; Nakatsu G; Bian X; Sung J; Chan F; El-Omar E, 2019, 'IDDF2019-ABS-0188 Gut microbiota modulates the chemopreventive efficacy of aspirin on colorectal cancer through impact on aspirin bioavailability', in Basic gastroenterology, BMJ Publishing Group Ltd and British Society of Gastroenterology, pp. A19.2 - A20, presented at International Digestive Disease Forum (IDDF) 2019, Hong Kong, 8–9 June 2019, http://dx.doi.org/10.1136/gutjnl-2019-iddfabstracts.36

Chen C-C; Liou J-M; Fang Y-J; Lin J-T; El-Omar E; Wu M-S, 2019, 'IDDF2019-ABS-0213 Long-term changes of gut microbiota, antibiotic resistance, and metabolic parameters after helicobacter pylori eradication- a multicentre randomised trial', in Gut – IDDF Young Investigator Award, BMJ Publishing Group Ltd and British Society of Gastroenterology, pp. A5 - A6, presented at International Digestive Disease Forum (IDDF) 2019, Hong Kong, 8–9 June 2019, http://dx.doi.org/10.1136/gutjnl-2019-iddfabstracts.9

Liou J-M; Chen P-Y; Luo J-C; Lee J-Y; Fang Y-J; Yang T-H; Chang C-Y; Bair M-J; Lin J-T; El-Omar EM; Wu M-S, 2018, 'Efficacies of genotypic resistance-guided versus empirical therapy for refractory Helicobacter pylori infection: A randomized controlled trial', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY, pp. 80 - 80, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000450260400094&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Gemmell M; Hsu T; Berry SH; Mukhopadhya I; Hansen R; Michaud M; El-Omar EM; Nielsen HL; Nielsen H; Huttenhower C; Garrett W; Hold GL, 2017, 'ELUCIDATING THE PATHOGENIC POTENTIAL OF THE INTESTINAL PATHOGEN CAMPYLOBACTER SHOWAE', in GUT, BMJ PUBLISHING GROUP, ENGLAND, Manchester, pp. A138 - A138, presented at Annual General Meeting of the British-Society-of-Gastroenterology (BSG), ENGLAND, Manchester, 19 June 2017 - 22 June 2017, http://dx.doi.org/10.1136/gutjnl-2017-314472.271

Mukhopadhya I; Murray G; Duncan L; Yuecel R; Shattock R; Kelly C; Iannelli F; Pozzi G; El-Omar E; Hold G; Hijazi K, 2016, 'Transporters for Antiretroviral Drugs in Colorectal CD4+T Cells and Circulating alpha 4 beta 7 Integrin CD4+T Cells: Implications for HIV Microbicides', in AIDS RESEARCH AND HUMAN RETROVIRUSES, MARY ANN LIEBERT, INC, IL, Chicago, pp. 353 - 353, presented at Conference on HIV Research for Prevention (HIV R4P), IL, Chicago, 17 October 2016 - 20 October 2016, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000386774600656&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Ferrand J; Hold GL; Ferrero RL; El-Omar EM; Gantier M, 2016, 'Toll-like receptor 8 polymorphisms in Helicobacter pylori infection', in EUROPEAN JOURNAL OF IMMUNOLOGY, WILEY-BLACKWELL, AUSTRALIA, Melbourne, pp. 637 - 637, presented at International Congress of Immunology (ICI), AUSTRALIA, Melbourne, 21 August 2016 - 26 August 2016, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000383610401470&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Hay A; Christopoulou CA; Murray GI; El-Omar EM; Hold GL; McLean MH, 2016, 'CYTOPLASMIC EXPRESSION OF HMGB1 IS ASSOCIATED WITH EARLY COLORECTAL CARCINOGENESIS', in GUT, BMJ PUBLISHING GROUP, pp. A192 - A192, http://dx.doi.org/10.1136/gutjnl-2016-312388.354

Mukhopadhya I; Berry S; El-Omar EM; Thomson J; Hold GL; Hijazi K, 2014, 'Characterisation of Drug Transporter Gene Expression in Colorectal Tissue and Cell Lines: Induction with Anti-retrovirals for Microbicide Optimization', in AIDS RESEARCH AND HUMAN RETROVIRUSES, MARY ANN LIEBERT, INC, SOUTH AFRICA, Cape Town, pp. A201 - A201, presented at Symposium on HIV Research for Prevention (HIV R4P), SOUTH AFRICA, Cape Town, 28 October 2014 - 31 October 2014, http://dx.doi.org/10.1089/aid.2014.5433.abstract

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