By Professor Emad El-Omar

Journal articles

Kuo CH; El-Omar E; Kao CY; Lin JT; Wu CY, 2025, 'Compositional and Metabolomic Shifts of the Gut Microbiome in Alcohol-Related Liver Disease', Journal of Gastroenterology and Hepatology Australia, 40, pp. 2176 - 2189, http://dx.doi.org/10.1111/jgh.17038

Chen MJ; Fang YJ; Chen CC; Chen CC; Luo JC; Bair MJ; Chen PY; Chou CK; Lee JY; Yang TH; Yu JJ; Kuo CC; Chiu MC; Chen CY; Shun CT; Hu WH; Tsai MH; Hsu YC; Tseng CH; Chang CY; Lin JT; El-Omar EM; Lee YC; Wu MS; Liou JM, 2025, 'Overall and Stratified Accuracies of H. pylori Serology Testing: A Multicenter Study of 8497 Screening-Naïve Adults', Helicobacter, 30, http://dx.doi.org/10.1111/hel.70074

Tseng CH; Wong S; Yu J; Lee YY; Terauchi J; Lai HC; Luo JC; Kao CY; Yu SL; Liou JM; Wu DC; Hou MC; Wu MS; Wu JJ; Sung JJY; El-Omar EM; Wu CY, 2025, 'Development of live biotherapeutic products: a position statement of Asia-Pacific Microbiota Consortium', Gut, 74, pp. 706 - 713, http://dx.doi.org/10.1136/gutjnl-2024-334501

Stanford J; Stefoska-Needham A; Jiang X; Mcwhinney B; Hassan HIC; El-Omar E; Charlton K; Lambert K, 2025, 'High-Diversity Plant-Based Diet and Gut Microbiome, Plasma Metabolome, and Symptoms in Adults with CKD', Clinical Journal of the American Society of Nephrology, 20, pp. 619 - 631, http://dx.doi.org/10.2215/CJN.0000000682

Noble A; Adams A; Nowak J; Cheng G; Nayak K; Quinn A; Kristiansen M; Kalla R; Ventham NT; Giachero F; Jayamanne C; Hansen R; Hold GL; El-Omar E; Croft NM; Wilson D; Beattie RM; Ashton JJ; Zilbauer M; Ennis S; Uhlig HH; Satsangi J, 2025, 'The Circulating Methylome in Childhood-Onset Inflammatory Bowel Disease', Journal of Crohn S and Colitis, 19, http://dx.doi.org/10.1093/ecco-jcc/jjae157

Porcari S; Mullish BH; Asnicar F; Ng SC; Zhao L; Hansen R; O'Toole PW; Raes J; Hold G; Putignani L; Hvas CL; Zeller G; Koren O; Tun H; Valles-Colomer M; Collado MC; Fischer M; Allegretti J; Iqbal T; Chassaing B; Keller J; Baunwall SM; Abreu M; Barbara G; Zhang F; Ponziani FR; Costello SP; Paramsothy S; Kao D; Kelly C; Kupcinskas J; Youngster I; Franceschi F; Khanna S; Vehreschild M; Link A; De Maio F; Pasolli E; Miguez AB; Brigidi P; Posteraro B; Scaldaferri F; Stojanovic MR; Megraud F; Malfertheiner P; Masucci L; Arumugam M; Kaakoush N; Segal E; Bajaj J; Leong R; Cryan J; Weersma RK; Knight R; Guarner F; Shanahan F; Cani PD; Elinav E; Sanguinetti M; de Vos WM; El-Omar E; Dorè J; Marchesi J; Tilg H; Sokol H; Segata N; Cammarota G; Gasbarrini A; Ianiro G, 2025, 'International consensus statement on microbiome testing in clinical practice', Lancet Gastroenterology and Hepatology, 10, pp. 154 - 167, http://dx.doi.org/10.1016/S2468-1253(24)00311-X

Hicks C; Leonardi M; Chua XY; Mari-Breedt L; Espada M; El-Omar EM; Condous G; El-Assaad F, 2025, 'Oral, Vaginal, and Stool Microbial Signatures in Patients With Endometriosis as Potential Diagnostic Non-Invasive Biomarkers: A Prospective Cohort Study', BJOG an International Journal of Obstetrics and Gynaecology, 132, pp. 326 - 336, http://dx.doi.org/10.1111/1471-0528.17979

He X; Hu M; Xu Y; Xia F; Tan Y; Wang Y; Xiang H; Wu H; Ji T; Xu Q; Wang L; Huang Z; Sun M; Wan Y; Cui P; Liang S; Pan Y; Xiao S; He Y; Song R; Yan J; Quan X; Wei Y; Hong C; Liao W; Li F; El-Omar E; Chen J; Qi X; Gao J; Zhou H, 2025, 'The gut–brain axis underlying hepatic encephalopathy in liver cirrhosis', Nature Medicine, 31, pp. 627 - 638, http://dx.doi.org/10.1038/s41591-024-03405-9

Quansah M; David MA; Martins R; El-Omar E; Aliberti SM; Capunzo M; Jensen SO; Tayebi M, 2025, 'The Beneficial Effects of Lactobacillus Strains on Gut Microbiome in Alzheimer’s Disease: A Systematic Review', Healthcare Switzerland, 13, http://dx.doi.org/10.3390/healthcare13010074

Huang Z; Zhang F; Liu Y; Zhang H; El-Omar EM; Zuo T, 2025, '1327: MULTI-OMICS, MULTI-COHORT PROFILING OF THE SMALL BOWEL VERSUS FECAL MYCOBIOME IN CROHN’S DISEASE UNVEILS MUCOSA-ASSOCIATED FUNGUS CLADOSPORIUM SPHAEROSPERMUM COUNTERACTING INTESTINAL INFLAMMATION VIA AMP SYNTHESIS', Gastroenterology, 169, pp. s - 333, http://dx.doi.org/10.1016/s0016-5085(25)01705-6

Rajapakse J; Khatiwada S; Shen S; Yu KL; Behary J; El-Omar EM; Zekry A, 2025, '934: IMPACT OF THE GUT MICROBIOTA ON IMMUNE MODULATION AND RESPONSE TO IMMUNE CHECKPOINT INHIBITORS IN HEPATOCELLULAR CARCINOMA: INSIGHTS FROM HUMAN AND PRECLINICAL MODELS', Gastroenterology, 169, pp. s - 228, http://dx.doi.org/10.1016/s0016-5085(25)01474-x

McLean AEB; Cooper WA; Kao SC; Lau ET; Wong KK; Jiang X; Yim HC; El-Omar E; Kohonen-Corish MR, 2025, 'P2.06.63 The Role of the Lower Airway Microbiome in Predicting Treatment Response to Immunotherapy in Patients With Non-Small Cell Lung Cancer', Journal of Thoracic Oncology, 20, pp. S319 - S319, http://dx.doi.org/10.1016/j.jtho.2025.09.597

Chen M-J; Chen P-Y; Chen C-C; Fang Y-J; Lin J-T; El-Omar EM; Wu M-S; Liou J-M, 2025, 'Su1478: COMPARISON OF VONOPRAZAN-BASED VERSUS LANSOPRAZOLE-BASED REGIMENS IN THE FIRST-LINE TREATMENT OF HELICOBACTER PYLORI INFECTION - AN INTERIM ANALYSIS OF A MULTICENTER, OPENLABELLED, RANDOMIZED CONTROLLED TRIAL', Gastroenterology, 169, pp. S - 771, http://dx.doi.org/10.1016/s0016-5085(25)02727-1

Liou J-M; Chen M-J; Fang Y-J; Chen C-C; El-Omar EM; Lin J-T; Lee Y-C; Wu M-S, 2025, 'Su1490: IDENTIFICATION OF THE OPTIMAL SCREENING STRATEGY FOR HELICOBACTER PYLORI INFECTION: AN INTERIM ANALYSIS OF A MULTICENTER, RANDOMIZED CONTROLLED TRIAL', Gastroenterology, 169, pp. S - 777, http://dx.doi.org/10.1016/s0016-5085(25)02739-8

He W-T; Hong T-C; Chen C-H; El-Omar EM; Wu M-S; Kao J-H; Liou J-M, 2025, 'Su1700: LOWER DIVERSITY AND DISTINCT COMPOSITIONS OF GUT MICROBIOTA IN PATIENTS WITH HEPATOCELLULAR CARCINOMA', Gastroenterology, 169, pp. S - 1758, http://dx.doi.org/10.1016/s0016-5085(25)04907-8

Hong T-C; Chen M-J; Chen C-C; Lin J-T; El-Omar EM; Wu M-S; Liou J-M, 2025, 'Su2012: THE INFLUENCE OF SUPPLEMENTARY PROBIOTICS ON THE ADVERSE EVENTS AND FECAL DYSBIOSIS OF HELICOBACTER PYLORI ERADICATION - A DOUBLE BLIND, MULTI-CENTER RANDOMIZED, PLACEBO-CONTROLLED TRIAL', Gastroenterology, 169, http://dx.doi.org/10.1016/s0016-5085(25)03073-2

Liou J-M; Fang Y-J; Chen C-C; Hong T-C; Chen M-J; Lin J-T; El-Omar EM; Wu M-S, 2025, 'Su2023: DISTINCT COMPOSITIONS OF GUT MICROBIOTA IN SUBJECTS WITH UNDERWEIGHT, NORMAL BODY MASS INDEX, OVERWEIGHT, AND OBESITY IN THE EAST-ASIAN POPULATION', Gastroenterology, 169, pp. S - 935, http://dx.doi.org/10.1016/s0016-5085(25)03084-7

Maher S; Rajapakse J; El-Omar E; Zekry A, 2024, 'Role of the Gut Microbiome in Metabolic Dysfunction-Associated Steatotic Liver Disease', Seminars in Liver Disease, 44, pp. 457 - 473, http://dx.doi.org/10.1055/a-2438-4383

Wagner M; Hicks C; El-Omar E; Combes V; El-Assaad F, 2024, 'The Critical Role of Host and Bacterial Extracellular Vesicles in Endometriosis', Biomedicines, 12, http://dx.doi.org/10.3390/biomedicines12112585

Van Hul M; Cani PD; Petitfils C; De Vos WM; Tilg H; El-Omar EM, 2024, 'What defines a healthy gut microbiome?', Gut, 73, pp. 1893 - 1908, http://dx.doi.org/10.1136/gutjnl-2024-333378

Dinis-Ribeiro M; Shah S; El-Serag H; Banks M; Uedo N; Tajiri H; Coelho LG; Libanio D; Lahner E; Rollan A; Fang JY; Moreira L; Bornschein J; Malfertheiner P; Kuipers EJ; El-Omar EM, 2024, 'The road to a world-unified approach to the management of patients with gastric intestinal metaplasia: a review of current guidelines', Gut, 73, pp. 1607 - 1617, http://dx.doi.org/10.1136/gutjnl-2024-333029

Feng Y; Zheng H; Yin C; Liang D; Zhang S; Chen J; Mai F; Lan Z; Zhu M; Mai Z; Shen S; Jayawardana T; Wu R; Tang W; Zhang R; He X; Zheng S; Hu Q; Han Y; Yang Y; Gong S; Wang Z; El-Omar EM; Luo W; Chen X; Chen G; Li P; Chen X, 2024, 'β-resorcylic acid released by Limosilactobacillus reuteri protects against cisplatin-induced ovarian toxicity and infertility', Cell Reports Medicine, 5, http://dx.doi.org/10.1016/j.xcrm.2024.101678

Chesworth R; Yim HCH; Watt G; El-Omar E; Karl T, 2024, 'Cannabidiol (CBD) facilitates cocaine extinction and ameliorates cocaine-induced changes to the gut microbiome in male C57BL/6JArc mice', Progress in Neuro Psychopharmacology and Biological Psychiatry, 133, http://dx.doi.org/10.1016/j.pnpbp.2024.111014

Liou JM; Malfertheiner P; Smith SI; El-Omar EM; Wu MS, 2024, '40 years after the discovery of Helicobacter pylori: towards elimination of H pylori for gastric cancer prevention', Lancet, 403, pp. 2570 - 2572, http://dx.doi.org/10.1016/S0140-6736(24)01171-1

Yim HCH; El-Omar E; Wu JCY; Sung JJY; Lee YY, 2024, 'Recent advances in translating gut microbiota research into clinical practice at 12th Asian Pacific Topic Conference 2023', Journal of Gastroenterology and Hepatology Australia, 39, pp. 979 - 981, http://dx.doi.org/10.1111/jgh.16565

Chen YC; Malfertheiner P; Yu HT; Kuo CL; Chang YY; Meng FT; Wu YX; Hsiao JL; Chen MJ; Lin KP; Wu CY; Lin JT; O'Morain C; Megraud F; Lee WC; El-Omar EM; Wu MS; Liou JM, 2024, 'Global Prevalence of Helicobacter pylori Infection and Incidence of Gastric Cancer Between 1980 and 2022', Gastroenterology, 166, pp. 605 - 619, http://dx.doi.org/10.1053/j.gastro.2023.12.022

Rugge M; Genta RM; Malfertheiner P; Dinis-Ribeiro M; El-Serag H; Graham DY; Kuipers EJ; Leung WK; Park JY; Rokkas T; Schulz C; El-Omar EM, 2024, 'RE.GA.IN.: the Real-world Gastritis Initiative-updating the updates', Gut, 73, pp. 407 - 441, http://dx.doi.org/10.1136/gutjnl-2023-331164

Moore KH; Ognenovska S; Chua XY; Chen Z; Hicks C; El-Assaad F; te West N; El-Omar E, 2024, 'Change in microbiota profile after vaginal estriol cream in postmenopausal women with stress incontinence', Frontiers in Microbiology, 15, http://dx.doi.org/10.3389/fmicb.2024.1302819

Hong TC; El-Omar EM; Kuo YT; Wu JY; Chen MJ; Chen CC; Fang YJ; Leow AHR; Lu H; Lin JT; Tu YK; Yamaoka Y; Wu MS; Liou JM; Chen YC; Chang YY, 2024, 'Primary antibiotic resistance of Helicobacter pylori in the Asia-Pacific region between 1990 and 2022: an updated systematic review and meta-analysis', Lancet Gastroenterology and Hepatology, 9, pp. 56 - 67, http://dx.doi.org/10.1016/S2468-1253(23)00281-9

Liou J-M; Chen M-J; Chen C-C; Lin J-T; El-Omar EM; Wu M-S, 2024, '1242 COMPARISON OF EMPIRICAL THERAPY VERSUS SUSCEPTIBILITY TESTING-GUIDED THERAPY FOR REFRACTORY HELICOBACTER PYLORI INFECTION: A MULTICENTER, OPEN-LABEL, RANDOMIZED CONTROLLED, NON-INFERIORY TRIAL', Gastroenterology, 166, pp. S - 291, http://dx.doi.org/10.1016/s0016-5085(24)01150-8

Cui C; Jiang X; Fitzmaurice M; El-Omar E, 2024, '25 A Healthy Optimal Australian Microbiome sub-study: oral and gut microbiome dysbiosis in obesity is associated with reduced beneficial taxa', Obesity Research & Clinical Practice, 18, pp. s7, http://dx.doi.org/10.1016/j.orcp.2024.09.017

Malfertheiner P; Camargo MC; El-Omar E; Liou JM; Peek R; Schulz C; Smith SI; Suerbaum S, 2023, 'Helicobacter pylori infection', Nature Reviews Disease Primers, 9, http://dx.doi.org/10.1038/s41572-023-00431-8

Li P; Shuai P; Shen S; Zheng H; Sun P; Zhang R; Lan S; Lan Z; Jayawardana T; Yang Y; Zhao J; Liu Y; Chen X; El-Omar EM; Wan Z, 2023, 'Perturbations in gut microbiota composition in patients with polycystic ovary syndrome: a systematic review and meta-analysis', BMC Medicine, 21, http://dx.doi.org/10.1186/s12916-023-02975-8

Omary MB; Leddin D; Metz G; Veitch AM; El-Omar EM; Macedo G; Perman ML, 2023, 'World Gastroenterology Organisation - Gut commentary series on digestive health and climate change', Gut, 72, pp. 2193 - 2196, http://dx.doi.org/10.1136/gutjnl-2023-331193

Zhang N; Zhu W; Zhang S; Liu T; Gong L; Wang Z; Zhang W; Cui Y; Wu Q; Li J; Yu H; El-Omar EM; Hao J; Lu W, 2023, 'A Novel Bifidobacterium/Klebsiella Ratio in Characterization Analysis of the Gut and Bile Microbiota of CCA Patients', Microbial Ecology, 87, http://dx.doi.org/10.1007/s00248-023-02318-3

Strout N; Pasic L; Hicks C; Chua XY; Tashvighi N; Butler P; Liu Z; El-Assaad F; Holmes E; Susic D; Samaras K; Craig ME; Davis GK; Henry A; Ledger WL; El-Omar EM, 2023, 'The MothersBabies Study, an Australian Prospective Cohort Study Analyzing the Microbiome in the Preconception and Perinatal Period to Determine Risk of Adverse Pregnancy, Postpartum, and Child-Related Health Outcomes: Study Protocol', International Journal of Environmental Research and Public Health, 20, pp. 6736, http://dx.doi.org/10.3390/ijerph20186736

El-Omar EM, 2023, 'Future directions in the microbiome field: an editor’s perspective', Egastroenterology, 1, http://dx.doi.org/10.1136/egastro-2023-100003

Chen MJ; Chen PY; Fang YJ; Bair MJ; Chen CC; Chen CC; Yang TH; Lee JY; Yu CC; Kuo CC; Chiu MC; Chou CK; Chen CY; Hu WH; Tsai MH; Hsu YC; Shun CT; Luo JC; Lin JT; El-Omar EM; Wu MS; Liou JM, 2023, 'Molecular testing-guided therapy versus susceptibility testing-guided therapy in first-line and third-line Helicobacter pylori eradication: two multicentre, open-label, randomised controlled, non-inferiority trials', Lancet Gastroenterology and Hepatology, 8, pp. 623 - 634, http://dx.doi.org/10.1016/S2468-1253(23)00097-3

Camilleri M; El-Omar EM, 2023, 'Ten reasons gastroenterologists and hepatologists should be treating obesity', Gut, 72, pp. 1033 - 1038, http://dx.doi.org/10.1136/gutjnl-2023-329639

Liou JM; Jiang XT; Chen CC; Luo JC; Bair MJ; Chen PY; Chou CK; Fang YJ; Chen MJ; Chen CC; Lee JY; Yang TH; Yu CC; Kuo CC; Chiu MC; Chen CY; Shun CT; Hu WH; Tsai MH; Hsu YC; Tseng CH; Chang CY; Lin JT; El-Omar EM; Wu MS; Wu CY; Lee YC; Tseng PH; Wu JY; Tai CM; Lee CT; Wang WL, 2023, 'Second-line levofloxacin-based quadruple therapy versus bismuth-based quadruple therapy for Helicobacter pylori eradication and long-term changes to the gut microbiota and antibiotic resistome: a multicentre, open-label, randomised controlled trial', Lancet Gastroenterology and Hepatology, 8, pp. 228 - 241, http://dx.doi.org/10.1016/S2468-1253(22)00384-3

Gow ML; Chua XY; El-Omar E; Susic D; Henry A, 2023, 'Relationship between Diet Quality and Maternal Stool Microbiota in the MUMS Australian Pregnancy Cohort', Nutrients, 15, pp. 689, http://dx.doi.org/10.3390/nu15030689

Zhang F; Gia A; Chen G; Gong L; Behary J; Hold GL; Zekry A; Tang X; Sun Y; El-Omar E; Jiang XT, 2023, 'Critical Assessment of Whole Genome and Viral Enrichment Shotgun Metagenome on the Characterization of Stool Total Virome in Hepatocellular Carcinoma Patients', Viruses, 15, pp. 53, http://dx.doi.org/10.3390/v15010053

Liou J-M; Chen M-J; Chen P-Y; Chen C-C; Lin J-T; El-Omar EM; Wu M-S, 2023, '267 GENOTYPIC RESISTANCE GUIDED THERAPY VERSUS SUSCEPTIBILITY TESTING GUIDED THERAPY IN THE FIRST-LINE AND THIRD-LINE TREATMENT OF HELICOBACTER PYLORI INFECTION-TWO MULTICENTER RANDOMIZED CONTROLLED TRIALS', Gastroenterology, 164, http://dx.doi.org/10.1016/s0016-5085(23)01068-5

Maloney S; Tebbutt N; Nikfarjam M; Samra J; Mendis S; Tie J; Christopherson L; Hayes S; Berthon-Jones N; Yim CHH; El-Omar E; Chantrill L, 2023, 'Trial in progress: NEO-adjuvant chemo-IMmunotherapy in PAnCreaTic cancer-NEO-IMPACT', ANNALS OF ONCOLOGY, 34, pp. S922 - S922, http://dx.doi.org/10.1016/j.annonc.2023.09.2630

Zekry A; El-Omar EM, 2022, 'A Tale of Two Fibers: A Liver Twist!', Gastroenterology, 163, pp. 1495 - 1497, http://dx.doi.org/10.1053/j.gastro.2022.09.012

Pandey D; Szczesniak M; Maclean J; Yim HCH; Zhang F; Graham P; El-Omar EM; Wu P, 2022, 'Dysbiosis in Head and Neck Cancer: Determining Optimal Sampling Site for Oral Microbiome Collection', Pathogens, 11, http://dx.doi.org/10.3390/pathogens11121550

Chen J; Zeng P; Gong L; Zhang X; Ling Z; Bi K; Shi F; Wang K; Zhang Q; Jiang J; Zhang Y; Uede T; El-Omar EM; Diao H, 2022, 'Osteopontin Exacerbates High-Fat Diet-Induced Metabolic Disorders in a Microbiome-Dependent Manner', Mbio, 13, pp. e02531 - e02522, http://dx.doi.org/10.1128/mbio.02531-22

Hosseini-Giv N; Basas A; Hicks C; El-Omar E; El-Assaad F; Hosseini-Beheshti E, 2022, 'Bacterial extracellular vesicles and their novel therapeutic applications in health and cancer', Frontiers in Cellular and Infection Microbiology, 12, http://dx.doi.org/10.3389/fcimb.2022.962216

O'Donnell M; Teasdale S; Chua X-Y; Hardman J; Wu N; Curtis J; Samaras K; Bolton P; Morris M; Shannon-Weickert C; Purves-Tyson T; El-Assaad F; Jiang X; Hold G; El-Omar E, 2022, 'The role of the microbiome in the metabolic health of people with schizophrenia and related psychoses: cross-sectional and pre-post lifestyle intervention analyses', Pathogens, 11, pp. 1279, http://dx.doi.org/10.3390/pathogens11111279

Luo Z; Li M; Yang J; Li J; Zhang Y; Liu F; El-Omar E; Han L; Bian J; Gong L; Wang M, 2022, 'Ferulic acid attenuates high-fat diet-induced hypercholesterolemia by activating classic bile acid synthesis pathway', Frontiers in Nutrition, 9, pp. 976638, http://dx.doi.org/10.3389/fnut.2022.976638

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