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Dr Steven Leach

Dr Steven Leach

Senior Lecturer

BSc (Hons); PhD

Medicine & Health
School of Clinical Medicine

I am a research scientist specializing in the gastrointestinal microbiome to promote gastrointestinal health and limit the burden of inflammatory disease in infants and children.

My focus is on basic and clinical research to understand and optimizing health outcomes in infants and children. My aim is to understand how bacteria colonize the gastrointestinal tract, how these bacteria turn into a community commonly called the microbiome, and how the microbiome interacts with the body. I work closely with physicians and health care professionals in both the Sydney Children’s Hospital and Royal Hospital for Women and together we look for ways to improve health outcomes in infants and children who suffer from gastrointestinal and associated inflammation disease including inflammatory bowel disease, eczema, allergy, necrotizing enterocolitis and irritable bowel syndrome.

I am also the head of laboratory research at Sydney Children’s Hospital and in this role I support a wide range of research projects and clinical trials into childhood disease.

Phone
(02) 9382 1883
Location
Westfield Research Lab Level 2 Sydney Children’s Hospital Randwick NSW 2031
  • Books | 2010
    Leach ST; Collins AM, 2010, The hepatic mast cell. In intestinal hypersensitivity and intestinal nematode infection, 1, Lambert Academic Publishing, Koln, Germany
  • Book Chapters | 2019
    Leach ST; Day AS, 2019, 'Enzyme-linked immunosorbent assay to measure S100A12 in fecal samples of children and adults', in Methods in Molecular Biology, Humana Press, New York, pp. 755 - 761,
  • Journal articles | 2024
    Chatterjee S; Leach ST; Lui K; Mishra A, 2024, 'Symbiotic symphony: Understanding host-microbiota dialogues in a spatial context', Seminars in Cell and Developmental Biology, 161-162, pp. 22 - 30,
    Journal articles | 2024
    Dissanayake RY; Yuan H; Coffey MJ; Traini I; Chan SY; Menzies J; Hughes J; McKay I; van Dorst JM; Leach ST; Chee OY; Krishnan U, 2024, '343 ARE AIRWAY MICROBIOTA AND INFLAMMATION IN CHILDREN WITH ESOPHAGEAL ATRESIA RELATED TO REFLUX ASPIRATION?', Gastroenterology, 166, pp. S - 80,
    Journal articles | 2024
    Katsoudas N; Tavakoli P; Wu N; Shapiro A; Leach ST; Williams AJ; Paramsothy R; Ghaly S; Connor SJ; Samocha-Bonet D; Lambert K; Hold GL, 2024, 'Dietary Emulsifier Exposure in People with Inflammatory Bowel Disease Compared with Healthy Controls: Is There a Cause for Concern?', Inflammatory Bowel Diseases, 30, pp. 1241 - 1250,
    Journal articles | 2024
    Krishnan U; Tang TC; Coffey MJ; Leach ST, 2024, 'Reply to “Proton pump inhibitors and esophageal atresia: Too early to change clinical practice”', Journal of Pediatric Gastroenterology and Nutrition,
    Journal articles | 2024
    Leach ST, 2024, 'Role of Probiotics and Prebiotics in Gut Symbiosis', Nutrients, 16,
    Journal articles | 2024
    Tang TC; Leach ST; Krishnan U, 2024, 'Proton pump inhibitors, antibiotics, and atopy increase the risk of eosinophilic esophagitis in children with esophageal atresia', Journal of Pediatric Gastroenterology and Nutrition, 78, pp. 1317 - 1328,
    Journal articles | 2024
    Traini I; Chan SY; Menzies J; Hughes J; Coffey MJ; McKay IR; Ooi CY; Leach ST; Krishnan U, 2024, 'Intestinal dysbiosis and inflammation in children with repaired esophageal atresia', Journal of Pediatric Gastroenterology and Nutrition, 78, pp. 43 - 51,
    Journal articles | 2023
    Lopez RN; Leach ST; Bowcock N; Coker E; Shapiro AJ; Day AS; Lemberg DA, 2023, 'Differences in Gut Microbiome Profile between Healthy Children and Children with Inflammatory Bowel Disease and/or Autoimmune Liver Disease: A Case-Control Study', Pathogens, 12,
    Journal articles | 2023
    Mah C; Jayawardana T; Leong G; Koentgen S; Lemberg D; Connor SJ; Rokkas T; Grimm MC; Leach ST; Hold GL, 2023, 'Assessing the Relationship between the Gut Microbiota and Inflammatory Bowel Disease Therapeutics: A Systematic Review', Pathogens, 12,
    Journal articles | 2023
    Menzies J; Sundararaj A; Cardamone M; McHarg A; Leach S; Krishnan U, 2023, 'Ketogenic Diets in Children With Intractable Epilepsy and its Effects on Gastrointestinal Function, Gut Microbiome, Inflammation, and Quality of Life', Journal of Pediatric Gastroenterology and Nutrition, 77, pp. 679 - 685,
    Journal articles | 2022
    Chandrasekar N; Dehlsen K; Leach ST; Krishnan U, 2022, 'Blenderised Tube Feeds vs. Commercial Formula: Which Is Better for Gastrostomy-Fed Children?', Nutrients, 14,
    Journal articles | 2022
    Lu LDW; Singh H; Castaño-Rodríguez N; Leach ST; Riordan SM; Tedla N; Krishnan U; Kaakoush NO, 2022, 'Changes to the upper gastrointestinal microbiotas of children with reflux oesophagitis and oesophageal metaplasia', Microbial Genomics, 8,
    Journal articles | 2022
    McHarg AS; Leach S, 2022, 'The role of the gut microbiome in paediatric irritable bowel syndrome', AIMS Microbiology, 8, pp. 454 - 469,
    Journal articles | 2022
    Traini I; Chan SY; Menzies J; Hughes J; Coffey MJ; Katz T; McKay IR; Ooi CY; Leach ST; Krishnan U, 2022, 'Evaluating the Dietary Intake of Children with Esophageal Atresia: A Prospective, Controlled, Observational Study', Journal of Pediatric Gastroenterology and Nutrition, 75, pp. 221 - 226,
    Journal articles | 2022
    Volkers AG; Appleton L; Gearry RB; Frampton CM; de Voogd FAE; Peters van Ton AM; Leach ST; Lemberg DA; Day AS, 2022, 'Fecal Calprotectin, Chitinase 3-Like-1, S100A12 and Osteoprotegerin as Markers of Disease Activity in Children with Crohn’s Disease', Gastrointestinal Disorders, 4, pp. 180 - 189,
    Journal articles | 2022
    Wong E; Lui K; Day AS; Leach ST, 2022, 'Manipulating the neonatal gut microbiome: current understanding and future perspectives', Archives of Disease in Childhood: Fetal and Neonatal Edition, 107, pp. F346 - F350,
    Journal articles | 2021
    Chandrasekar N; Dehlsen K; Leach ST; Krishnan U, 2021, 'Exploring Clinical Outcomes and Feasibility of Blended Tube Feeds in Children', Journal of Parenteral and Enteral Nutrition, 45, pp. 685 - 698,
    Journal articles | 2021
    Williams AJ; Paramsothy R; Wu N; Ghaly S; Leach S; Paramsothy S; Corte C; O'Brien C; Burke C; Wark G; Samocha-Bonet D; Lambert K; Ahlenstiel G; Wasinger V; Dutt S; Pavli P; Grimm M; Lemberg D; Connor S; Leong R; Hold G, 2021, 'Australia IBD Microbiome (AIM) Study: Protocol for a multicentre longitudinal prospective cohort study', BMJ Open, 11,
    Journal articles | 2020
    Ali F; Lui K; Wang A; Day AS; Leach ST, 2020, 'The perinatal period, the developing intestinal microbiome and inflammatory bowel diseases: What links early life events with later life disease?', Journal of the Royal Society of New Zealand, 50, pp. 371 - 383,
    Journal articles | 2020
    Krishnan U; Singh H; Tedla N; Leach ST; Kaakoush NO, 2020, 'Presence of gastric pepsinogen in the trachea is associated with altered inflammation and microbial composition', Infection and Immunity, 88,
    Journal articles | 2020
    Leach ST; Day AS; Messenger R; Walters TD; Navas-López VM; Sladek M; Brückner A; Yerushalmi B; Saeed S; Otley A; Mack D; Gavish M; Turner D; Griffiths AM; Lemberg DA, 2020, 'Fecal Markers of Inflammation and Disease Activity in Pediatric Crohn Disease: Results from the ImageKids Study', Journal of Pediatric Gastroenterology and Nutrition, 70, pp. 580 - 585,
    Journal articles | 2020
    Traini I; Menzies J; Hughes J; Katz T; Coffey MJ; Ooi CY; Leach ST; Krishnan U; Group EARTHR, 2020, 'Mo2000 FOOD FOR THOUGHT: DIET, DYSPHAGIA AND GROWTH IN CHILDREN WITH REPAIRED ESOPHAGEAL ATRESIA', Gastroenterology, 158, pp. S - 1575,
    Journal articles | 2020
    Traini I; Menzies J; Hughes J; Katz T; Coffey MJ; Ooi CY; Leach ST; Krishnan U; the EARTHRGOBO, 2020, '307 LOOKING BEYOND THE ESOPHAGUS: INVESTIGATING THE INTESTINAL MICROBIOTA AND INFLAMMATION IN CHILDREN WITH REPAIRED ESOPHAGEAL ATRESIA', Gastroenterology, 158,
    Journal articles | 2020
    Traini I; Menzies J; Hughes J; Leach ST; Krishnan U, 2020, 'Oesophageal atresia: The growth gap', World Journal of Gastroenterology, 26, pp. 1262 - 1272,
    Journal articles | 2020
    Upendran Y; Leach ST; Singh H; McBride J; Thomas PS; Belessis Y; Krishnan U, 2020, 'Pepsin as a Marker of Reflux Aspiration in Children With Esophageal Atresia: A Pilot Study', Frontiers in Pediatrics, 8, pp. 94,
    Journal articles | 2019
    Day AS; Ho SSC; Leach ST, 2019, 'Letter to the Editor Re: Serum Calprotectin in Adolescents with Inflammatory Bowel Disease', Journal of Pediatric Gastroenterology and Nutrition, 68, pp. e109,
    Journal articles | 2019
    Krishnan U; Singh H; Kaakoush N; Leach S, 2019, 'DOZ047.18: Diagnosing reflux aspiration in esophageal atresia: role of microbiome and pepsin', Diseases of the Esophagus, 32,
    Journal articles | 2019
    Lum A; Wakefield CE; Donnan B; Burns MA; Fardell JE; Jaffe A; Kasparian NA; Kennedy SE; Leach ST; Lemberg DA; Marshall GM, 2019, 'Facilitating engagement with school in students with chronic illness through positive education: A mixed-methods comparison study', School Psychology, 34, pp. 677 - 686,
    Journal articles | 2019
    Lum A; Wakefield CE; Donnan B; Burns MA; Fardell JE; Jaffe A; Kasparian NA; Kennedy SE; Leach ST; Lemberg DA; Marshall GM, 2019, 'School students with chronic illness have unmet academic, social, and emotional school needs', School Psychology, 34, pp. 627 - 636,
    Journal articles | 2019
    Thurgate LE; Lemberg DA; Day AS; Leach ST, 2019, 'An overview of inflammatory bowel disease unclassified in children', Inflammatory Intestinal Diseases, 4, pp. 97 - 103,
    Journal articles | 2019
    Volkers A; Appleton L; Leach ST; Lemberg D; Day AS, 2019, 'Sa1761 – Chitinase 3-Like-1 Protein: A Novel Biomarker of Disease Activity and Risk of Relapse in Children with Inflammatory Bowel Disease', Gastroenterology, 156, pp. S - 391,
    Journal articles | 2018
    Cone S; Ooi CY; Coffey M; Larkin G; Leach ST; Poulton C, 2018, 'Mo2024 - Functional Dysbiosis in Children with Irritable Bowel Syndrome', Gastroenterology, 154, pp. S - 883,
    Journal articles | 2018
    Galgut BJ; Lemberg DA; Day AS; Leach ST, 2018, 'The value of fecal markers in predicting relapse in inflammatory bowel diseases', Frontiers in Pediatrics, 5, pp. 292,
    Journal articles | 2018
    Gan LL; Lum A; Wakefield CE; Donnan BM; Marshall GM; Burns MA; Jaffe A; Leach S; Lemberg DA; Fardell JE, 2018, 'The School Experiences of Siblings of Children with Chronic Illness: Australian Parents' Perceptions', Educational and Developmental Psychologist, 35, pp. 36 - 50,
    Journal articles | 2018
    Garg M; Leach ST; Day AS; Ooi CY, 2018, 'Fecal calprotectin concentrations in young children with cystic fibrosis: Authors response', Journal of Cystic Fibrosis, 17, pp. e10 - e11,
    Journal articles | 2018
    Garg M; Leach ST; Pang T; Needham B; Coffey MJ; Katz T; Strachan R; Widger J; Field P; Belessis Y; Chuang S; Day AS; Jaffe A; Ooi CY, 2018, 'Age-related levels of fecal M2-pyruvate kinase in children with cystic fibrosis and healthy children 0 to 10 years old', Journal of Cystic Fibrosis, 17, pp. 109 - 113,
    Journal articles | 2018
    Weinstein-Nakar I; Focht G; Church P; Walters TD; Abitbol G; Anupindi S; Berteloot L; Hulst JM; Ruemmele F; Lemberg DA; Leach ST; Cytter R; Greer ML; Griffiths AM; Turner D, 2018, 'Associations Among Mucosal and Transmural Healing and Fecal Level of Calprotectin in Children With Crohn's Disease', Clinical Gastroenterology and Hepatology, 16, pp. 1089 - 1097.e4,
    Journal articles | 2017
    Aggarwal V; Day AS; Connor S; Leach ST; Brown G; Singh R; Friedman A; Zekry A; Craig PI, 2017, 'Role of capsule endoscopy and fecal biomarkers in small-bowel Crohn's disease to assess remission and predict relapse', Gastrointestinal Endoscopy, 86, pp. 1070 - 1078,
    Journal articles | 2017
    Alhagamhmad MH; Day AS; Lemberg DA; Leach ST, 2017, 'Exploring and enhancing the anti-inflammatory properties of polymeric formula', Journal of Parenteral and Enteral Nutrition, 41, pp. 436 - 445,
    Journal articles | 2017
    Alhagamhmad MH; Lemberg DA; Day AS; Tan LZ; Ooi CY; Krishnan U; Gupta N; Munday JS; Leach ST, 2017, 'Advancing nutritional therapy: A novel polymeric formulation attenuates intestinal inflammation in a murine colitis model and suppresses pro-inflammatory cytokine production in ex-vivo cultured inflamed colonic biopsies', Clinical Nutrition, 36, pp. 497 - 505,
    Journal articles | 2017
    Day AS; Leach ST; Lemberg DA, 2017, 'An update on diagnostic and prognostic biomarkers in inflammatory bowel disease', Expert Review of Molecular Diagnostics, 17, pp. 835 - 843,
    Journal articles | 2017
    Day AS; Mylvaganam G; Shalloo N; Clarkson C; Leach ST; Lemberg DA, 2017, 'Assessment of disease-specific knowledge in Australian children with inflammatory bowel disease and their parents', Journal of Paediatrics and Child Health, 53, pp. 778 - 781,
    Journal articles | 2017
    Duvoisin G; Lopez RN; Day AS; Lemberg DA; Gearry RB; Leach ST, 2017, 'Novel Biomarkers and the Future Potential of Biomarkers in Inflammatory Bowel Disease', Mediators of Inflammation, 2017, pp. 1936315,
    Journal articles | 2017
    Garg M; Leach ST; Coffey MJ; Katz T; Strachan R; Needham B; Lui K; Ali F; Day AS; Appleton L; Moeeni V; Jaffe A; Ooi CY, 2017, 'Age-Dependent Values of Fecal Calprotectin in Cystic Fibrosis and Healthy Controls', Gastroenterology, 152, pp. S645 - S645,
    Journal articles | 2017
    Garg M; Leach ST; Coffey MJ; Katz T; Strachan R; Needham B; Lui K; Ali F; Day AS; Appleton L; Moeeni V; Jaffe A; Ooi CY, 2017, 'EPS3.1 Age-dependent values of fecal calprotectin in cystic fibrosis and healthy children', Journal of Cystic Fibrosis, 16, pp. S41 - S41,
    Journal articles | 2017
    Garg M; Leach ST; Coffey MJ; Katz T; Strachan R; Pang T; Needham B; Lui K; Ali F; Day AS; Appleton L; Moeeni V; Jaffe A; Ooi CY, 2017, 'Age-dependent variation of fecal calprotectin in cystic fibrosis and healthy children', Journal of Cystic Fibrosis, 16, pp. 631 - 636,
    Journal articles | 2017
    Garg M; Leach ST; Needham B; Coffey MJ; Katz T; Strachan R; Widger J; Field P; Belessis Y; Chuang S; Day AS; Jaffe A; Ooi CY, 2017, 'Determining the Age-Related Levels of Fecal M2-Pyruvate Kinase in Children with Cystic Fibrosis During the First Decade of Life', Gastroenterology, 152, pp. S645 - S646,
    Journal articles | 2017
    Garg M; Leach ST; Needham B; Coffey MJ; Katz TE; Strachan R; Widger J; Field P; Belessis Y; Chuang S; Day AS; Jaffe A; Ooi CY, 2017, 'WS21.1 Determining the age-related levels of fecal M2-pyruvate kinase in children with cystic fibrosis during the first decade of life', Journal of Cystic Fibrosis, 16, pp. S34 - S34,
    Journal articles | 2017
    Holtman GA; Lisman-van Leeuwen Y; Day AS; Fagerberg UL; Henderson P; Leach ST; Perminow G; Mack D; Van Rheenen PF; Van De Vijver E; Wilson DC; Reitsma JB; Berger MY, 2017, 'Use of laboratory markers in addition to symptoms for diagnosis of inflammatory bowel disease in children: A meta-analysis of individual patient data', JAMA Pediatrics, 171, pp. 984 - 991,
    Journal articles | 2017
    Lopez RN; Leach ST; Lemberg DA; Duvoisin G; Gearry RB; Day AS, 2017, 'Fecal biomarkers in inflammatory bowel disease', Journal of Gastroenterology and Hepatology (Australia), 32, pp. 577 - 582,
    Journal articles | 2017
    Luo A; Leach ST; Barres R; Hesson LB; Grimm MC; Simar D, 2017, 'The microbiota and epigenetic regulation of t helper 17/regulatory T cells: In search of a balanced immune system', Frontiers in Immunology, 8, pp. 417,
    Journal articles | 2017
    Menzies J; Hughes J; Leach S; Belessis Y; Krishnan U, 2017, 'Prevalence of malnutrition and feeding difficulties in children with esophageal atresia', Journal of Pediatric Gastroenterology and Nutrition, 64, pp. e100 - e105,
    Journal articles | 2016
    Alhagamhmad MH; Day AS; Lemberg DA; Leach ST, 2016, 'An overview of the bacterial contribution to Crohn disease pathogenesis', Journal of Medical Microbiology, 65, pp. 1049 - 1059,
    Journal articles | 2016
    Kaakoush NO; Day AS; Leach ST; Lemberg DA; Mitchell HM, 2016, 'Reduction in Gut Microbial Diversity as a Mechanism of Action of Exclusive Enteral Nutrition', American Journal of Gastroenterology, 111, pp. 1033,
    Journal articles | 2016
    Kaakoush NO; Thomas DS; Ruzayqat MM; Lynch D; Leach ST; Lemberg DA; Day AS; Mitchell HM, 2016, 'Campylobacter concisus utilizes blood but not short chain fatty acids despite showing associations with Firmicutes taxa', MICROBIOLOGY-SGM, 162, pp. 1388 - 1397,
    Journal articles | 2016
    Kaakoush NO; Thomas DS; Ruzayqat MM; Lynch D; Leach ST; Lemberg DA; Day AS; Mitchell HM, 2016, 'Campylobacter concisus utilizes blood but not short chain fatty acids despite showing associations with firmicutes taxa', Microbiology (United Kingdom), 162, pp. 1388 - 1397,
    Journal articles | 2016
    Nielsen S; Needham B; Leach ST; Day AS; Jaffe A; Thomas T; Ooi CY, 2016, 'Disrupted progression of the intestinal microbiota with age in children with cystic fibrosis', Scientific Reports, 6, pp. 24857,
    Journal articles | 2016
    Safe M; Chan WH; Leach ST; Sutton L; Lui K; Krishnan U, 2016, 'Widespread use of gastric acid inhibitors in infants: Are they needed? Are they safe?', World J Gastrointest Pharmacol Ther, 7, pp. 531 - 539,
    Journal articles | 2016
    Wright EK; Kamm MA; De Cruz P; Hamilton AL; Ritchie KJ; Keenan JI; Leach S; Burgess L; Aitchison A; Gorelik A; Liew D; Day AS; Gearry RB, 2016, 'Comparison of fecal inflammatory markers in Crohn's disease', Inflammatory Bowel Diseases, 22, pp. 1086 - 1094,
    Journal articles | 2015
    Alhagamhmad M; Leach S; Day AS; Lemberg D, 2015, 'Mo1231 Attenuation of Intestinal Inflammation by Co-Supplementation of Glutamine and Arginine', Gastroenterology, 148, pp. S - 644,
    Journal articles | 2015
    Alhagamhmad M; Leach S; Day AS; Lemberg D, 2015, 'Mo1232 Development of an Enhanced Nutritional Therapy for the Treatment of Crohn's Disease', Gastroenterology, 148, pp. S - 644,
    Journal articles | 2015
    H Alhagamhmad M; T Leach S; A Lemberg D; S Day A, 2015, 'Changing Patterns in the Epidemiology of Crohn Disease', Journal of Gastroenterology and Hepatology Research, 4, pp. 1805 - 1809,
    Journal articles | 2015
    Kaakoush NO; Castaño-Rodríguez N; Day AS; Lemberg DA; Leac ST; Mitchell HM, 2015, 'Faecal levels of zonula occludens toxin in paediatric patients with crohn’s disease and their association with the intestinal microbiota', Journal of Medical Microbiology, 64, pp. 303 - 306,
    Journal articles | 2015
    Kaakoush NO; Day AS; Leach ST; Lemberg DA; Nielsen S; Mitchell HM, 2015, 'Effect of exclusive enteral nutrition on the microbiota of children with newly diagnosed Crohn's disease', Clinical and Translational Gastroenterology, 6,
    Journal articles | 2015
    Leach ST; Lui K; Naing Z; Dowd SE; Mitchell HM; Day AS, 2015, 'Multiple Opportunistic Pathogens, but Not Pre-existing Inflammation, May Be Associated with Necrotizing Enterocolitis', Digestive Diseases and Sciences, 60, pp. 3728 - 3734,
    Journal articles | 2015
    McMullen L; T Leach S; A Lemberg D; S Day A, 2015, 'Current roles of specific bacteria in the pathogenesis of inflammatory bowel disease', AIMS Microbiology, 1, pp. 82 - 91,
    Journal articles | 2015
    Nahidi L; Corley SM; Wilkins MR; Wei J; Alhagamhmad M; Day AS; Lemberg DA; Leach ST, 2015, 'The major pathway by which polymeric formula reduces inflammation in intestinal epithelial cells: a microarray-based analysis', Genes and Nutrition, 10,
    Journal articles | 2015
    Ooi CY; Pang T; Leach ST; Katz T; Day AS; Jaffe A, 2015, 'Fecal Human β-Defensin 2 in Children with Cystic Fibrosis: Is There a Diminished Intestinal Innate Immune Response?', Digestive Diseases and Sciences, 60, pp. 2946 - 2952,
    Journal articles | 2015
    Ooi CY; Pang T; Leach ST; Katz T; Day AS; Jaffe A, 2015, 'Su1367 Faecal Human Beta-Defensin 2 Levels in Children With Cystic Fibrosis', Gastroenterology, 148, pp. S - 487,
    Journal articles | 2015
    Pang T; Leach ST; Katz T; Jaffe A; Day AS; Ooi CY, 2015, 'Elevated fecal M2-pyruvate kinase in children with cystic fibrosis: A clue to the increased risk of intestinal malignancy in adulthood?', JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 30, pp. 866 - 871,
    Journal articles | 2015
    Shepherd D; Day AS; Leach ST; Lopez R; Messenger R; Woodhead HJ; Ledder O; Lemberg DA, 2015, 'Single high-dose oral Vitamin D3 therapy (Stoss): A solution to Vitamin D deficiency in children with inflammatory bowel disease?', Journal of Pediatric Gastroenterology and Nutrition, 61, pp. 411 - 414,
    Journal articles | 2015
    Wright EK; Kamm MA; De Cruz P; Hamilton AL; Ritchie KJ; Krejany EO; Leach S; Gorelik A; Liew D; Prideaux L; Lawrance IC; Andrews JM; Bampton PA; Jakobovits SL; Florin TH; Gibson PR; Debinski H; Macrae FA; Samuel D; Kronborg I; Radford-Smith G; Selby W; Johnston MJ; Woods R; Elliott PR; Bell SJ; Brown SJ; Connell WR; Day AS; Desmond PV; Gearry RB, 2015, 'Measurement of fecal calprotectin improves monitoring and detection of recurrence of Crohn's disease after surgery', Gastroenterology, 148, pp. 938 - 947.e1,
    Journal articles | 2014
    Chan J; Foster R; Leach ST; Day AS; Lemberg DA, 2014, 'Tacrolimus use in pediatric inflammatory bowel disease', JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 29, pp. 151 - 152,
    Journal articles | 2014
    Chan J; Foster R; Lemberg DA; Leach ST; Day AS, 2014, 'Tacrolimus use in paediatric inflammatory bowel disease', JOURNAL OF CROHNS & COLITIS, 8, pp. S436 - S436,
    Journal articles | 2014
    Dhaliwal J; Leach S; Katz T; Nahidi L; Pang T; Lee JM; Strachan R; Day AS; Jaffe A; Ooi CY, 2014, 'Intestinal Inflammation and Impact on Growth in Children With Cystic Fibrosis', Journal of Pediatric Gastroenterology and Nutrition, pp. 1 - 1,
    Journal articles | 2014
    Huang Y; Lemberg DA; Day AS; Dixon B; LeaC.H. S; Bujanover Y; Jaffe A; Thomas PS, 2014, 'Markers of inflammation in the breath in paediatric inflammatory bowel disease', Journal of Pediatric Gastroenterology and Nutrition, 59, pp. 505 - 510,
    Journal articles | 2014
    Leach ST; Day AS; Moore D; Lemberg DA, 2014, 'Low rate of inflammatory bowel disease in the Australian indigenous paediatric population', Journal of Paediatrics and Child Health, 50, pp. 328 - 329,
    Journal articles | 2014
    Nahidi L; Day AS; Lemberg DA; Leach ST, 2014, 'Paediatric Inflammatory Bowel Disease: A Mechanistic Approach to Investigate Exclusive Enteral Nutrition Treatment', SCIENTIFICA, 2014,
    Journal articles | 2014
    Naidoo CMY; Leach ST; Day AS; Lemberg DA, 2014, 'Inflammatory Bowel Disease in Children of Middle Eastern Descent', INTERNATIONAL JOURNAL OF PEDIATRICS, 2014,
    Journal articles | 2014
    Pang T; Leach ST; Day AS; Jaffe A; Ooi CY, 2014, 'Tu1240 Faecal M2-Pyruvate Kinase in Children With Cystic Fibrosis: Does Increased Cell Turnover From Childhood Explain the Increased Risk of Gastrointestinal Malignancy in Adulthood?', Gastroenterology, 146, pp. S - 792,
    Journal articles | 2014
    Pang T; Leach ST; Katz T; Day AS; Ooi CY, 2014, 'Fecal biomarkers of intestinal health and disease in children', Frontiers in Pediatrics, 2, pp. 1 - 12,
    Journal articles | 2014
    Pang T; Leach ST; Katz T; Jaffe A; Day AS; Ooi CY, 2014, 'Elevated faecal M2-pyruvate kinase in children with cystic fibrosis: A clue to the increased risk of intestinal malignancy in adulthood?', Journal of Gastroenterology and Hepatology, pp. n/a - n/a,
    Journal articles | 2014
    Raheem M; Leach ST; Day AS; Lemberg DA, 2014, 'The pathophysiology of eosinophilic esophagitis', Frontiers in Pediatrics, 2,
    Journal articles | 2013
    Alhagamhmad MH; Lemberg DA; Day AS; Leach ST, 2013, 'Defining the therapeutic and preventative anti-inflammatory benefits of curcumin in vitro', OA Inflammation, 1,
    Journal articles | 2013
    Day AS; Ehn M; Gearry RB; Lemberg DA; Leach ST, 2013, 'Fecal S100A12 in healthy infants and children', Disease Markers, 35, pp. 295 - 299,
    Journal articles | 2013
    Hallab JC; Leach ST; Zhang L; Mitchell HM; Oei J; Lui K; Day AS; Hallab J, 2013, 'Molecular characterization of bacterial colonization in the preterm and term infant's intestine', Indian Journal of Pediatrics, 80, pp. 1 - 5,
    Journal articles | 2013
    Kaakoush NO; Castaño-Rodríguez N; Day AS; Lemberg DA; Leach ST; Mitchell HM, 2013, 'Campylobacter concisus and exotoxin 9 levels in paediatric patients with Crohn's disease and their association with the intestinal microbiota', Journal of Medical Microbiology, 63, pp. 99 - 105,
    Journal articles | 2013
    Nahidi L; Leach ST; Lemberg DA; Day AS, 2013, 'Osteoprotegerin exerts its pro-inflammatory effects through nuclear factor-κb activation', Digestive Diseases and Sciences, 58, pp. 3144 - 3155,
    Journal articles | 2013
    Nahidi L; Leach ST; Mitchell HM; Kaakoush NO; Lemberg DA; Munday J; Huinao K; Day AS, 2013, 'Su2016 Nutritional Therapy Modulates Inflammation and Improves Altered Barrier Function in a Mouse Model of Colitis', Gastroenterology, 144, pp. S - 532,
    Journal articles | 2013
    Nahidi L; Leach ST; Mitchell HM; Kaakoush NO; Lemberg DA; Munday JS; Huinao K; Day AS, 2013, 'Inflammatory bowel disease therapies and gut function in a colitis mouse model', BioMed Research International, 2013,
    Journal articles | 2013
    Nahidi L; Leach ST; Mitchell HM; Kaakoush NO; Lemberg DA; Munday JS; Huinao K; Day AS, 2013, 'The effect of nutritional and non-nutritional therapies on gut barrier function and mucosal healing in a colitis mouse model', JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 28, pp. 16 - 16,
    Journal articles | 2013
    Naing Z; Rayner BS; Killikulangara ; Vunnam K; Leach ST; Mciver CJ; Scott GMS; Craig ME; Lui K; Rawlinson WD, 2013, 'Prevalence of viruses in stool of premature neonates at a neonatal intensive care unit', Journal of Paediatrics and Child Health, 49, pp. E221 - E226,
    Journal articles | 2012
    Alhagamhmad MH; Day AS; Lemberg DA; Leach ST, 2012, 'An update of the role of nutritional therapy in the management of Crohn’s disease', Journal of Gastroenterology, 47, pp. 872 - 882,
    Journal articles | 2012
    Day AS; Judd TA; Lemberg DA; Leach ST, 2012, 'Fecal M2-PK in children with Crohn's disease: A preliminary report', Digestive Diseases and Sciences, 57, pp. 2166 - 2170,
    Journal articles | 2012
    Day AS; Leach ST; Judd TA; Baba K; Hill RJ; Lemberg DA, 2012, 'Sa1998 The Probiotic VSL#3 in Children With Crohn Disease in Remission', Gastroenterology, 142, pp. S - 377,
    Journal articles | 2012
    Day AS; Leach ST; Lemberg DA; Judd TA; Baba K; Hill RJ, 2012, 'Sa2000 The Probiotic VSL#3 in Children With Active Crohn Disease', Gastroenterology, 142, pp. S - 378,
    Journal articles | 2012
    Day AS; Ledder O; Leach ST; Lemberg DA, 2012, 'Crohn's and colitis in children and adolescents', World Journal of Gastroenterology, 18, pp. 5862 - 5869
    Journal articles | 2012
    Day AS; Mitchell HM; Leach ST; Lemberg DA, 2012, 'Changes of faecal microflora in patients with Crohn's disease treated with an elemental diet and total parenteral nutrition', Digestive and Liver Disease, 45, pp. 177 - 177,
    Journal articles | 2012
    Kaakoush NO; Huinao KD; Leach ST; Lemberg DA; Dowd S; Mitchell HM; Day AS, 2012, 'Microbial dysbiosis in pediatric patients with Crohn's disease.', Journal of Clinical Microbiology, 50, pp. 3258 - 3266,
    Journal articles | 2012
    Lambert B; Lemberg DA; Leach ST; Day AS, 2012, 'Long-Term Efficacy of Enteral Nutrition for Patients with Crohn's Disease Reply', DIGESTIVE DISEASES AND SCIENCES, 57, pp. 3311 - 3311,
    Journal articles | 2012
    Lambert B; Lemberg DA; Leach ST; Day AS, 2012, 'Longer-term outcomes of nutritional management of Crohn's disease in children', Digestive Diseases and Sciences, 57, pp. 2171 - 2177,
    Journal articles | 2012
    Lambert B; Lemberg DA; Leach ST; Day AS, 2012, 'Reply', Digestive Diseases and Sciences, 57, pp. 3311,
    Journal articles | 2012
    Lee JM; Leach ST; Katz T; Day AS; Jaffe A; Ooi CY, 2012, 'Update of faecal markers of inflammation in children with cystic fibrosis', Mediators of Inflammation, 2012, pp. Article number: 948367,
    Journal articles | 2012
    Nahidi L; Day AS; Lemberg DA; Leach ST, 2012, 'Differential effects of nutritional and non-nutritional therapies on intestinal barrier function in an in vitro model', Journal of Gastroenterology, 47, pp. 107 - 117,
    Journal articles | 2011
    Aurangzeb B; Leach ST; Lemberg DA; Day AS, 2011, 'Assessment of nutritional status and serum leptin in children with inflammatory bowel disease', Journal of Pediatric Gastroenterology and Nutrition, 52, pp. 536 - 541
    Journal articles | 2011
    Judd TA; Day AS; Lemberg DA; Turner D; Leach ST, 2011, 'Update of fecal markers of inflammation in inflammatory bowel disease', Journal of Gastroenterology and Hepatology (JGH), 26, pp. 1493 - 1499,
    Journal articles | 2011
    Lemberg DA; Leach ST; Day AS, 2011, 'Transient hypertransaminasemia in pediatric patients with crohn disease', Journal of Pediatric Gastroenterology and Nutrition, 53, pp. 229,
    Journal articles | 2011
    Levin A; Wadhera V; Leach ST; Woodhead H; Lemberg DA; Mendoza-cruz C; Day AS, 2011, 'Vitamin D deficiency in children with inflammatory bowel disease', Digestive Diseases and Sciences, 56, pp. 830 - 836,
    Journal articles | 2011
    Li-Kim-Moy JP; Tobias V; Day AS; Leach ST; Lemberg DA, 2011, 'Esophageal subepithelial fibrosis and hyalinization are features of eosinophilic esophagitis', Journal of Pediatric Gastroenterology and Nutrition, 52, pp. 147 - 153,
    Journal articles | 2011
    Loughran-Fowlds AS; Leach ST; Lin J; Oei J; Henry RL; Day AS; Lui K, 2011, 'Respiratory disease and early serum S100A12 changes in very premature infants', ACTA Paediatrica, 100, pp. 1538 - 1543,
    Journal articles | 2011
    Wadhera V; Lemberg DA; Leach ST; Day AS, 2011, 'Complementary and alternative medicine in chidlren attending gastroenterology clinics: usage patterns and reasons for use', Journal of Paediatrics and Child Health, 47, pp. 904 - 910,
    Journal articles | 2010
    Aurangzeb B; Leach ST; Lemberg DA; Day AS, 2010, 'Nutritional status of children with coeliac disease', ACTA Paediatrica, 99, pp. 1020 - 1025
    Journal articles | 2010
    Kaakoush NO; Holmes J; Octavia S; Man S; Zhang L; Castano-Rodriguez N; Day AS; Leach ST; Lemberg DA; Dutt S; Stormon M; O'Loughlin EV; Magoffin A; Mitchell HM, 2010, 'Detection of Helicobacteraceae in intestinal biopsies of children with Crohn's disease', Helicobacter, 15, pp. 549 - 557
    Journal articles | 2010
    Leach ST; Nahidi L; Tilakaratne S; Day AS; Lemberg DA, 2010, 'Development and Assessment of a Modified Pediatric Crohn Disease Activity Index', Journal of Pediatric Gastroenterology and Nutrition, 51, pp. 232 - 236
    Journal articles | 2010
    Man S; Kaakoush NO; Leach ST; Nahidi L; Lu HK; Norman J; Day AS; Zhang L; Mitchell HM, 2010, 'Host attachment, invasion and stimulation of proinflammatory cytokines by Campylobacter concisus and other non-Campylobacter jejuni Campylobacter species', Journal of Infectious Diseases, 202, pp. 1855 - 1865
    Journal articles | 2010
    Man S; Zhang L; Day AS; Leach ST; Lemberg DA; Mitchell HM, 2010, 'Campylobacter concisus and other Campylobacter species in children with newly diagnosed Crohn’s disease', Inflammatory Bowel Diseases, 16, pp. 1008 - 1016
    Journal articles | 2010
    Nahidi L; Leach ST; Sidler M; Levin A; Lemberg DA; Day AS, 2010, 'Osteoprotegrin in Pediatric Crohn's Disease and the Effects of Exclusive Enteral Nutrition', Inflammatory Bowel Diseases, 17, pp. 516 - 523,
    Journal articles | 2010
    Pham M; Leach ST; Lemberg DA; Day AS, 2010, 'Subclinical Intestinal Inflammation in Siblings of Children with Crohn's Disease', Digestive Diseases and Sciences, 55, pp. 3502 - 3507
    Journal articles | 2010
    Sinitsky D; Lemberg DA; Leach ST; Bohane TD; Jackson R; Day AS, 2010, 'Infliximab improves inflammation and anthropometric measures in pediatric Crohn's disease', Journal of Gastroenterology and Hepatology, 25, pp. 810 - 816
    Journal articles | 2010
    Turner D; Leach ST; Mack D; Uusque K; Mclernon R; Hyams J; Leleiko N; Walters T; Crandall W; Markowitz J; Otley AR; Griffiths A; Day AS, 2010, 'Faecal calprotectin, lactoferrin, M2-pyruvate kinase and S100A12 in severe ulcerative colitis a prospective multicentre comparison of predicting outcomes and monitoring response', Gut, 59, pp. 1207 - 1212
    Journal articles | 2010
    Turner D; Mack D; Leleiko N; Walters T; Uusque K; Leach ST; Day AS; Crandall W; Silverberg M; Markowitz J; Otley A; Keljo D; Mamula P; Kugathasan S; Hyams J; Griffiths A, 2010, 'Severe Pediatric Ulcerative Colitis A Prospective Multicenter Study of Outcomes and Predictors of Response', Gastroenterology, 138, pp. 2282 - 2291
    Journal articles | 2010
    Whitten K; Leach ST; Bohane TD; Woodhead H; Day AS, 2010, 'Effect of exclusive enteral nutrition on bone turnover in children with Crohn's disease', Journal of Gastroenterology, 45, pp. 399 - 405,
    Journal articles | 2010
    Zhang L; Budman V; Day AS; Mitchell HM; Lemberg DA; Riordan SM; Grimm M; Leach ST; Ismail Y, 2010, 'Isolation and detection of Campylobacter concisus from saliva of healthy individuals and patients with inflammatory bowel disease', Journal of Clinical Microbiology, 48, pp. 2965 - 2967
    Journal articles | 2009
    Day AS; Levin A; Wadhera V; Leach ST; Woodhead H; Mendoza-Cruz C; Lemberg DA, 2009, 'P047 SERUM 25-HYDROXY-VITAMIN D DEFICIENCY IN AUSTRALIAN CHILDREN WITH IBD', Journal of Crohn's and Colitis Supplements, 3, pp. 12 - 12,
    Journal articles | 2009
    Day AS; Nahidi L; Leach ST; Sidler M; Levin A; Lemberg DA, 2009, 'P011 FAECAL OSTEOPROTEGRIN IN PAEDIATRIC CROHN DISEASE', Journal of Crohn's and Colitis Supplements, 3, pp. 5 - 5,
    Journal articles | 2009
    Pham M; Leach ST; Lemberg DA; Day AS, 2009, 'Siblings of children with Crohns disease have sub-clinical intestinal inflammation', JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 24, pp. A331 - A331,
    Journal articles | 2009
    Pons R; Whitten K; Woodhead H; Leach ST; Lemberg DA; Day AS, 2009, 'Dietary intakes of children with Crohn`s disease', British Journal of Nutrition, 102, pp. 1052 - 1057
    Journal articles | 2009
    Ramasundara M; Leach ST; Lemberg DA; Day AS, 2009, 'Defensins and inflammation: The role of defensins in inflammatory bowel disease', Journal of Gastroenterology and Hepatology, 24, pp. 202 - 208
    Journal articles | 2009
    Tilakaratne S; Lemberg DA; Leach ST; Day AS, 2009, 'C-Reactive protein and disease activity in children with Crohn's disease', Digestive Diseases and Sciences, 55, pp. 131 - 136,
    Journal articles | 2009
    Turner D; Mack DR; Uusoue K; Hyams JS; Leleiko N; Leach S; Walters TD; Day AS; Crandall W; Markowitz J; Silverberg MS; Otley AR; Mamula P; Griffiths AM, 2009, 'T1745 A Prospective Multicenter Study of Outcomes and Predictors of Response in Severe Pediatric Ulcerative Colitis', Gastroenterology, 136, pp. A - 571,
    Journal articles | 2009
    Zhang L; Man S; Day AS; Leach ST; Lemberg DA; Dutt S; Stormon MO; Otley AR; O Loughlin E; Magoffin A; Ng P; Mitchell HM, 2009, 'Campylobacter concisus: a New Character in the Crohn`s Disease Story? Reply', Journal of Clinical Microbiology, 47, pp. 1614 - 1615
    Journal articles | 2009
    Zhang L; Man S; Day AS; Leach ST; Lemberg DA; Dutt S; Stormon MO; Otley AR; O Loughlin E; Magoffin A; Ng P; Mitchell HM, 2009, 'Detection and isolation of Campylobacter species other than C. jejuni from children with Crohn`s disease', Journal of Clinical Microbiology, 47, pp. 453 - 455
    Journal articles | 2008
    Aurangzeb B; Leach S; Day AS, 2008, 'Anthropometric parameters and serum leptin levels in children with coeliac disease', Nutrition, 24, pp. 499 - 500,
    Journal articles | 2008
    Leach ST; Aurangzeb B; Day AS, 2008, 'Coeliac disease screening in children: Assessment of a novel anti-gliadin antibody assay', Journal of Clinical Laboratory Analysis, 22, pp. 327 - 333
    Journal articles | 2008
    Leach ST; Messina I; Lemberg DA; Novick D; Rubenstein M; Day AS, 2008, 'Local and systemic interleukin-18 and interleukin-18-binding protein in children with inflammatory bowel disease', Inflammatory Bowel Diseases, 14, pp. 68 - 74,
    Journal articles | 2008
    Leach ST; Mitchell HM; Eng W; Zhang L; Day AS, 2008, 'Sustained modulation of intestinal bacteria by exclusive enteral nutrition used to treat children with Crohn`s disease', Alimentary Pharmacology and Therapeutics, 28, pp. 724 - 733
    Journal articles | 2008
    Leach ST; Mitchell HM; Geczy C; Sherman P; Day AS, 2008, 'S100 calgranulin proteins S100A8, S100A9 and S100A12 are expressed in the inflamed gastric mucosa of Helicobacter pylori-infected children', Canadian Journal of Gastroenterology, 22, pp. 461 - 464
    Journal articles | 2008
    Man S; Zhang L; Day AS; Leach ST; Mitchell HM, 2008, 'Detection of enterohepatic and gastric Helicobacter species in fecal specimens of children with Crohn`s disease', Helicobacter, 13, pp. 234 - 238
    Journal articles | 2008
    Sidler M; Leach ST; Day AS, 2008, 'Fecal S100A12 and fecal calprotectin as noninvasive markers for inflammatory bowel disease in children', Inflammatory Bowel Diseases, 14, pp. 359 - 366,
    Journal articles | 2007
    Leach ST; Yang Z; Messina I; Song C; Geczy C; Cunningham AM; Day AS, 2007, 'Serum and mucosal S100 proteins, calprotectin (S100A8/S100A9)and S100A12, are elevated at diagnosis in children with inflammatory bowel disease', Scandinavian Journal of Gastroenterology, 42, pp. 1321 - 1331
    Journal articles | 2007
    de Jong N; Leach ST; Day AS, 2007, 'Polymeric formula has direct anti-inflammatory effects on enterocytes in an in Vitro Model of intestinal inflammation', Digestive Diseases and Sciences, 52, pp. 2029 - 2036
    Journal articles | 2006
    Belessis Y; Leach S; Hawkins G; Numa A; Morton J; Lui K; Day A, 2006, 'E9/324 – Serum S-100 proteins (A12 and calprotectin) are associated with bronchoalveolar lavage evidence of airway infection and inflammation in young children with cystic fibrosis and are potential simple non-invasive markers of early lung disease', Paediatric Respiratory Reviews, 7, pp. S306 - S306,
    Journal articles | 2006
    Leach ST; Day AS; de Jong N, 2006, 'Fecal S100A12: A novel noninvasive marker in children with Crohn`s disease', Inflammatory Bowel Diseases, 12, pp. 566 - 572
    Journal articles | 2006
    Leach ST; Day AS, 2006, 'S100 proteins in the pathogenesis and diagnosis of inflammatory bowel disease', Expert Review of Clinical Immunology, 2, pp. 471 - 480,
    Journal articles | 2006
    Whitten K; Leach ST; Bohane TD; Woodhead H; Day AS, 2006, 'The effect of exclusive enteral nutrition on bone metabolism in children with active Crohn`s disease', Journal of Gastroenterology and Hepatology, 21, pp. A351 - A351,
    Journal articles | 2005
    Sieveking D; Leach ST; Mitchell HM; Day AS, 2005, 'Role of serum factors in epithelial cell responses to Helicobacter pylori infection in vitro', Journal of Gastroenterology and Hepatology, 20, pp. 1610 - 1615,
    Journal articles | 2004
    Day AS; Leach S; Messina I; Novick D; Rubinstein M, 2004, 'P0125 PP SERUM INTERLEUKIN-18 IS INCREASED IN CHILDREN WITH INFLAMMATORY BOWEL DISEASE.', Journal of Pediatric Gastroenterology and Nutrition, 39, pp. S105 - S105,
    Journal articles | 2004
    Day AS; Leach S; Messina I; Yang Z; Song C; Geczy C; Cunningham A, 2004, 'P0605 SERUM AND MUCOSAL CALPROTECTIN (S100 A8/A9) AND A12 ARE ELEVATED IN CHILDREN WITH INFLAMMATORY BOWEL DISEASE (IBD)', Journal of Pediatric Gastroenterology and Nutrition, 39, pp. S287 - S287,
    Journal articles | 1999
    Collins AM; Leach ST; Payne JM; Mitchell AJ; Dai Y; Jackson GD, 1999, 'A role for the hepatobiliary system in IgE-mediated intestinal inflammation in the rat', Clinical and Experimental Allergy, 29, pp. 262 - 270,
  • Conference Abstracts | 2022
    Chandrasekar N; Dehlsen K; Leach ST; Krishnan U, 2022, '32: BLENDERISED TUBE FEEDING VS FORMULA FEEDING: WHICH IS BETTER FOR TUBE-FED CHILDREN?', in Gastroenterology, Elsevier BV, Vol. 162, pp. S - 12,
    Conference Abstracts | 2022
    Luu LD; Singh H; Castano-Rodriguez N; Leach ST; Stephen R; Tedla N; Krishnan U; Kaakoush NO, 2022, 'ENRICHMENT OF PREVOTELLA IS A CONSISTENT SIGNATURE IN THE METAPLASTIC ESOPHAGUS IN CHILDREN AND ADULTS', in GASTROENTEROLOGY, W B SAUNDERS CO-ELSEVIER INC, Vol. 162, pp. S833 - S833,
    Conference Abstracts | 2022
    Luu LD; Singh H; Castaño-Rodríguez N; Leach ST; Stephen R; Tedla N; Krishnan U; Kaakoush NO, 2022, 'Mo1603: ENRICHMENT OF PREVOTELLA IS A CONSISTENT SIGNATURE IN THE METAPLASTIC ESOPHAGUS IN CHILDREN AND ADULTS', in Gastroenterology, Elsevier BV, Vol. 162, pp. S - 833,
    Conference Abstracts | 2022
    Tavakoli P; Wu N; Shapiro AJ; Sanchez-Lomba B; Pipicella JL; Lo L; Williams A-J; Ghaly S; Leach ST; Corte C; Burke C; Samocha-Bonet D; Lambert K; Wasinger V; Dutt S; Pavli P; Grimm MC; Lemberg D; Connor S; Leong R; Hold G; Paramsothy R; O'Brien C, 2022, 'A snapshot of inflammatory bowel disease in Australia: Interim analysis of the Australian IBD Microbiome (AIM) Study cohort', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY, Vol. 37, pp. 159 - 159,
    Conference Abstracts | 2020
    Traini I; Menzies J; Hughes J; Katz T; Coffey MJ; Ooi CY; Leach ST; Krishnan U, 2020, 'FOOD FOR THOUGHT: DIET, DYSPHAGIA AND GROWTH IN CHILDREN WITH REPAIRED ESOPHAGEAL ATRESIA', in GASTROENTEROLOGY, W B SAUNDERS CO-ELSEVIER INC, TX, Austin, Vol. 158, pp. S1575 - S1575, presented at Crohn's and Colitis Congress, TX, Austin, 23 January 2020 - 25 January 2020,
    Conference Abstracts | 2020
    Traini I; Menzies J; Hughes J; Katz T; Coffey MJ; Ooi CY; Leach ST; Krishnan U, 2020, 'LOOKING BEYOND THE ESOPHAGUS: INVESTIGATING THE INTESTINAL MICROBIOTA AND INFLAMMATION IN CHILDREN WITH REPAIRED ESOPHAGEAL ATRESIA', in GASTROENTEROLOGY, W B SAUNDERS CO-ELSEVIER INC, TX, Austin, Vol. 158, pp. S1507 - S1508, presented at Crohn's and Colitis Congress, TX, Austin, 23 January 2020 - 25 January 2020,
    Conference Papers | 2018
    Cone S; Larkin G; Poulton C; Wemheuer B; Thomas T; Lemberg D; Gupta N; Leach ST; Coffey MJ; Ooi CY, 2018, 'Functional dysbiosis of the gut microbiota in childhood irritable bowel syndrome', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY, pp. 144 - 145,
    Conference Papers | 2017
    Garg M; Leach S; Coffey MJ; Katz T; Strachan R; Pang T; Needham B; Lui K; Day AS; Appleton L; Moeeni V; Jaffe A; Ooi KY, 2017, 'Age-dependent levels of fecal calprotectin in cystic fibrosis and healthy children.', Spain, presented at European Cystic Fibrosis Society Conference, Spain, 08 June 2017 - 10 June 2017
    Conference Papers | 2017
    Garg M; Leach S; Needham B; Coffey MJ; Katz T; Strachan R; Widger J; Field P; Belessis Y; Chuang S; Day AS; Jaffe A; Ooi KY, 2017, 'Determining the age-related levels of fecal M2-pyruvate kinase in children with cystic fibrosis during the first decade of life.', in Widger J, Field P, Belessis Y, Chuang S, Day AS, Jaffe A, Ooi CY., W B SAUNDERS CO-ELSEVIER INC, Spain, pp. S645 - S646, presented at European Cystic Fibrosis Conference Society, Spain, 08 June 2017 - 10 June 2017,
    Conference Abstracts | 2017
    Garg M; Leach ST; Needham B; Coffey MJ; Katz TE; Strachan R; Widger J; Field P; Belessis Y; Chuang S; Day AS; Jaffe A; Ooi CY, 2017, 'AGE-RELATED LEVELS OF STOOL M2-PYRUVATE KINASE IN CHILDREN WITH CYSTIC FIBROSIS AND HEALTHY CONTROLS', in PEDIATRIC PULMONOLOGY, WILEY, Vol. 52, pp. S454 - S455,
    Conference Abstracts | 2016
    Ooi CY; Garg M; Young K; Needham B; Leach S; Jaffe A; Avolio J; Ratjen F; Tullis E; Gonska T, 2016, 'IMPROVEMENT IN INTESTINAL INFLAMMATION ON IVACAFTOR', in PEDIATRIC PULMONOLOGY, WILEY-BLACKWELL, Vol. 51, pp. 272 - 272,
    Conference Abstracts | 2016
    Yadhavan Upendran Y; Leach S; Thomas P; Dettmer P; Duvoisin G; McBride J; Belessis Y; Krishnan U, 2016, 'Exhaled breath condensate & salivary pepsin as non-invasive markers of reflux aspiration in children with oesophageal atresia and tracheo-oesophageal fistula', in Exhaled breath condensate & salivary pepsin as non-invasive markers of reflux aspiration in children with oesophageal atresia and tracheo-oesophageal fistula, · Diseases of the Esophagus, Sydney, Australia, presented at 4th International Conference on Oesophageal Atresia, Sydney, Australia, 15 September 2016,
    Conference Papers | 2015
    Aurangzeb B; Bin Nisar Y; Leach S; Day AS, 2015, 'Nutritional status of children with coeliac disease: Comparison of Australian cohort with Pakistani cohort', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY-BLACKWELL, pp. 54 - 54,
    Conference Presentations | 2015
    Ooi CY; Pang T; Leach ST; Katz T; Day AS; Jaffe A, 2015, 'FAECAL HUMAN BETA-DEFENSIN 2 LEVELS IN CHILDREN WITH CYSTIC FIBROSIS',
    Conference Papers | 2014
    Kaakoush NO; Day AS; Leach ST; Lemberg DA; Nielsen S; Mitchell HM, 2014, 'The effect of exclusive enteral nutrition on the microbiota of newly diagnosed pediatric Crohn's disease patients', in JOURNAL OF CROHNS & COLITIS, ELSEVIER SCIENCE BV, pp. S395 - S396,
    Conference Presentations | 2014
    Mcmullen L; Mann SM; Kaakoush NO; Leach ST; Day AS; Mitchell HM; Lemberg DA, 2014, 'Impact of Campylobacter concisus on paediatric inflammatory bowel disease', Vol. 8, pp. S398 - S399,
    Conference Abstracts | 2014
    Mcmullen L; Mann SM; Kaakoush NO; Leach ST; Mitchell HM; Lemberg DA; Day AS, 2014, 'Impact of campylobacter concisus on pediatric inflammatory bowel disease', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY-BLACKWELL, Vol. 29, pp. 151 - 151,
    Conference Papers | 2014
    Nahidi L; Wei J; Day AS; Lemberg DA; Leach ST, 2014, 'The major pathway by which polymeric formula reduces intestinal inflammation in Crohn's disease patients - a microarray-based analysis', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY-BLACKWELL, pp. 23 - 23,
    Conference Papers | 2014
    Nahidi L; Wei J; Day AS; Lemberg DA; Leach ST, 2014, 'The major pathway by which polymeric formula reduces intestinal inflammation in Crohn's disease patients a microarray-based analysis', in JOURNAL OF CROHNS & COLITIS, ELSEVIER SCIENCE BV, pp. S423 - S423,
    Conference Papers | 2014
    Wright EK; De Cruz P; Kamm MA; Hamilton AL; Ritchie KJ; Krejany S; Leach ST; Keenan JI; Gorelik A; Liew D; Prideaux L; Lawrance IC; Andrews JM; Bampton PA; Sparrow M; Florin TH; Gibson PR; Debinski H; Macrae FA; Leong RW; Kronborg I; Radford-Smith GL; Selby W; Johnson MJ; Woods R; Elliott PR; Bell S; Brown SJ; Connell W; Day AS; Gearry RB; Desmond PV, 2014, 'Faecal Calprotectin Is Superior to Faecal Lactoferrin and S100A12 As a Surrogate Marker for Post-Operative Crohn's Disease Endoscopic Recurrence. Prospective Longitudinal Endoscopic Validation. Results From the POCER Study', in GASTROENTEROLOGY, W B SAUNDERS CO-ELSEVIER INC, IL, Chicago, pp. S174 - S174, presented at 55th Annual Meeting of the Society-for-Surgery-of-the-Alimentary-Tract (SSAT) / Digestive Disease Week (DDW), IL, Chicago, 03 May 2014 - 06 May 2014,
    Conference Papers | 2013
    Alhagamhmad MH; Lemberg DA; Day AS; Leach ST, 2013, 'Defining the anti-inflammatory benefits of curcumin in vitro', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY-BLACKWELL, pp. 134 - 134,
    Conference Papers | 2013
    Nahidi L; Leach ST; Lemberg DA; Day AS, 2013, 'Is osteoprotegerin a pro-inflammatory cytokine?', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY-BLACKWELL, pp. 16 - 16,
    Conference Papers | 2013
    Wright EK; De Cruz P; Kamm MA; Hamilton AL; Ritchie K; Krejany S; Leach ST; Keenan JI; Gorelik A; Liew D; Prideaux L; Lawrance IC; Andrews JM; Bampton PA; Sparrow M; Florin TH; Gibson PR; Debinski H; Macrae FA; Leong RW; Kronborg I; Radford-Smith G; Selby W; Johnston MJ; Woods R; Elliott PR; Bell S; Brown SJ; Connell W; Day AS; Gearry RB; Desmond PV, 2013, 'Faecal calprotectin helps determine the need for post-operative colonoscopy in crohn's disease. prospective longitudinal endoscopic validation. Results from the POCER study', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY-BLACKWELL, pp. 106 - 106,
    Conference Abstracts | 2012
    Aggarwal V; Day A; Leach S; Connor SJ; Brown GJ; Singh R; Freidman A; Grimm M; Craig P, 2012, 'Multicenter capsule endoscopy study of patients with small bowel Crohn's disease in clinical remission: long-term follow-up and correlation with faecal biomarkers and clinical outcome', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY-BLACKWELL, Vol. 27, pp. 96 - 97,
    Conference Papers | 2012
    Kaakoush NO; Thomas T; Day AS; Leach ST; Lemberg D; Dowd S; Mitchell HM, 2012, 'MICROBIAL DYSBIOSIS IN PEDIATRIC PATIENTS WITH CROHN'S DISEASE', in HELICOBACTER, WILEY-BLACKWELL, SLOVENIA, Ljubljana, pp. 92 - 92, presented at 25th International Workshop on Helicobacter and Related Bacteria in Chronic Digestive Inflammation and Gastric Cancer, SLOVENIA, Ljubljana, 13 September 2012 - 15 September 2012,
    Conference Abstracts | 2010
    Aggarwal V; Day AS; Connor S; Leach ST; Grimm M; Craig PI, 2010, 'Correlation between capsule endoscopy findings and Crohn's disease activity index, faecal calprotectin and S100A12 in small bowel Crohn's disease patients in clinical remission', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY-BLACKWELL PUBLISHING, INC, Vol. 25, pp. A100 - A100,
    Conference Abstracts | 2010
    Kaakoush NO; Holmes J; Octavia S; Man S; Zhang L; Castano-Rodriguez N; Day A; Leach ST; Lemberg DA; Dutt S; Storman M; O'Laughlin EV; Magoffin A; Mitchell HM, 2010, 'Do members of the Helicobacteraceae play a role in Crohn's disease?', in HELICOBACTER, WILEY-BLACKWELL PUBLISHING, INC, NETHERLANDS, Rotterdam, Vol. 15, pp. 315 - 315, presented at 23rd International Workshop on Helicobacter and Related Bacteria in Chronic Digestive Inflammation and Gastric Cancer, NETHERLANDS, Rotterdam, 16 September 2010 - 18 September 2010,
    Conference Abstracts | 2010
    Mitchell HM; Man SM; Leach S; Nahidi L; Norman J; Day AS; Zhang L; Tan S; Kaakoush NO, 2010, 'Campylobacter concisus: an emergent intestinal pathogen', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY-BLACKWELL PUBLISHING, INC, Vol. 25, pp. A82 - A82,
    Conference Papers | 2010
    Nahidi L; Leach ST; Lemberg DA; Day AS, 2010, 'Modulation of intestinal tight junction structure by nutritional and non-nutritional therapies', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY-BLACKWELL PUBLISHING, INC, pp. A81 - A81,
    Conference Papers | 2009
    Nahidi L; Leach ST; Day AS; Lemberg DA, 2009, 'Nutritional modulation of epithelial permeability', in JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, WILEY-BLACKWELL PUBLISHING, INC, pp. A315 - A315,
    Conference Papers | 2008
    Day AS; Aurangzeb B; Leach ST; Lemberg DA; Walker JS, 2008, 'The effects of exclusive enteral nutrition upon the insulin-LIKE growth factor pathway in children with Crohn`s disease', in Journal of Gastroenterology and Hepatology, Blackwell Publishing Asia, Carlton, Victoria, Australia, pp. A303 - A303, presented at Journal of Gastroenterology and Hepatology,
    Conference Papers | 2008
    Nahidi L; Leach ST; Messina I; Day AS, 2008, 'Osteoprotegrin in inflammatory bowel disease', in Journal of Gastroenterology and Hepatology, Blackwell Publishing Asia, Carlton, Victoria, Australia, pp. A304 - A304, presented at Journal of Gastroenterology and Hepatology,
    Conference Abstracts | 2008
    Zhang L; Man S; Day S; Leach ST; Lemberg DA; Dutt S; Stormon MO; O Loughlin EV; Magoffin A; Mitchell HM, 2008, 'Investigation of the possible association between non-jejuni Campylobacter species and Crohn`s disease in Australian children', in Journal of Gastroenterology and Hepatology, Blackwell Publishing Asia, Carlton, Victoria, Australia, Vol. 23, pp. A220 - A220, presented at Journal of Gastroenterology and Hepatology,
    Conference Abstracts | 2006
    Leach ST; Day AS, 2006, 'Assessment of novel anti-gliadin immunoassays in children', in Journal of Gastroenterology and Hepatology, Blackwell Publishing Asia, Vol. 21, pp. A348 - A348,
    Theses / Dissertations | 2005
    Leach ST, 2005, The Hepatic mast cell: Its function and nature in intestinal hypersensitivity and intestinal nematode infection.
    Theses / Dissertations | 2004
    Leach ST, 2004, The Hepatic mast cell: Its function and nature in intestinal hypersensitivity and intestinal nematode infection
    Conference Papers | 1997
    Collins AM; Leach ST; Payne JM; Judd RM; Dai Y; Jackson GD, 1997, 'Hepatic mast cells and hypersensitivity reactions in the intestine', in Husband AJ; Beagley K; Clancy R; Collins A (eds.), 9th International Congress of Mucosal Immunology, 9th International Congress of Mucosal Immunology, Sydney, pp. 39 - 48, presented at 9th International Congress of Mucosal Immunology, Sydney

Postgraduate Research Supervisor Award

Deans Rising star award

Gastroenterology Society of Australia – Travel Grant

Funding sources: NHMRC, Sydney Children’s Hospital Foundation, Janssen Pty Ltd, The R E Ross Trust


Society Memberships: Gastroenterological Society of Australia

Professional Activities: Member of the Editorial Boards of Frontiers in Pediatrics Pediatric Gastroenterology, Hepatology and Nutrition, Nutrients

Committee Membership: SCHN Kids Research Leadership Committee, SCHN Human Research Ethics Committee, The Infection disease, Immunity and Inflammation (Triple I) Clinical Academic Group Scientific Advisory Committee, MothersBabies Scientific Advisory Committee

My Research Supervision

2 PhD students, 2 ILP students