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Otago Medical School staff profiles

Professor Andrew Day

PositionHead of Department
DepartmentDepartment of Paediatrics (Christchurch)
QualificationsMB ChB, MD, FRACP, AGAF
Research summaryGastrointestinal disorders in children

Research

Andrew Day trained in paediatrics in Christchurch and undertook further subspeciality training in Toronto, Canada. After completing clinical and research training in Canada, Dr Day took up a clinical academic position at University of New South Wales, Sydney, Australia. He returned to the department in 2009 and was appointed to Head of Department in 2010.

Professor Day is a paediatric gastroenterologist. His research interests include Inflammatory Bowel disease, Crohn’s disease and Coeliac disease, with projects focusing upon host-pathogen interactions in the gut (and how these relate to chronic gut diseases), intestinal inflammatory biomarkers, and nutritional aspects of gut diseases.

Publications

Leach, S. T., & Day, A. S. (2019). Enzyme-linked immunosorbent assay to measure S100A12 in fecal samples of children and adults. In C. W. Heizmann (Ed.), Calcium-binding proteins of the EF-hand superfamily: From basics to medical applications: Methods in molecular biology (Vol. 1929). (pp. 755-761). New York, NY: Humana Press. doi: 10.1007/978-1-4939-9030-6_47

Day, A. S. (2019). Exclusive enteral nutrition in children with Crohn’s disease: A focused nutritional intervention. In R. R. Watson & V. R. Preedy (Eds.), Dietary interventions in gastrointestinal diseases: Foods nutrients, and dietary supplements. (pp. 107-116). London, UK: Academic Press. doi: 10.1016/B978-0-12-814468-8.00009-0

Rahmani, J., Kord-Varkaneh, H., Hekmatdoost, A., Thompson, J., Clark, C., Salehisahlabadi, A., Day, A. S., & Jacobson, K. (2019). Body mass index and risk of inflammatory bowel disease: A systematic review and dose-response meta-analysis of cohort studies of over a million participants. Obesity Reviews. Advance online publication. doi: 10.1111/obr.12875

Brown, S. C., Whelan, K., Gearry, R. B., & Day, A. S. (2019). Low FODMAP diet in children and adolescents with functional bowel disorder: A clinical case note review. JGH Open. Advance online publication. doi: 10.1002/jgh3.12231

Martin, N. G., Rigterink, T., Adamji, M., Wall, C. L., & Day, A. S. (2019). Single high-dose oral vitamin D3 treatment in New Zealand children with inflammatory bowel disease. Translational Pediatrics, 8(1), 35-41. doi: 10.21037/tp.2018.11.01

Chapter in Book - Research

Leach, S. T., & Day, A. S. (2019). Enzyme-linked immunosorbent assay to measure S100A12 in fecal samples of children and adults. In C. W. Heizmann (Ed.), Calcium-binding proteins of the EF-hand superfamily: From basics to medical applications: Methods in molecular biology (Vol. 1929). (pp. 755-761). New York, NY: Humana Press. doi: 10.1007/978-1-4939-9030-6_47

Day, A. S. (2019). Exclusive enteral nutrition in children with Crohn’s disease: A focused nutritional intervention. In R. R. Watson & V. R. Preedy (Eds.), Dietary interventions in gastrointestinal diseases: Foods nutrients, and dietary supplements. (pp. 107-116). London, UK: Academic Press. doi: 10.1016/B978-0-12-814468-8.00009-0

von der Weid, P.-Y., & Day, A. S. (2018). Pediatric lymphatic development and intestinal lymphangiectasia. In M. J. Caplan (Ed.), Reference module in biomedical sciences. Elsevier. doi: 10.1016/B978-0-12-801238-3.66051-8

Day, A. S., & Robinson, S. J. (2013). Complementary and alternative medicine use in children with inflammatory bowel disease. In K. R. Carter & G. E. Murphy (Eds.), Alternative medicine: Practices, health benefits and controversies. (pp. 107-116). Nova Science.

Beasley, S., & Day, A. (2012). Abdominal pain and vomiting. In M. South & D. Isaacs (Eds.), Practical paediatrics. (7th ed.) (pp. 706-714). Edinburgh, UK: Churchill Livingstone.

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Chapter in Book - Other

Day, A. (2013). Paediatrics. In P. Joyce, G. Nicholls, K. Thomas & T. Wilkinson (Eds.), The Christchurch experience: 40 years of research and teaching. (pp. 41-44). Christchurch, New Zealand: University of Otago.

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Journal - Research Article

Rahmani, J., Kord-Varkaneh, H., Hekmatdoost, A., Thompson, J., Clark, C., Salehisahlabadi, A., Day, A. S., & Jacobson, K. (2019). Body mass index and risk of inflammatory bowel disease: A systematic review and dose-response meta-analysis of cohort studies of over a million participants. Obesity Reviews. Advance online publication. doi: 10.1111/obr.12875

Martin, N. G., Rigterink, T., Adamji, M., Wall, C. L., & Day, A. S. (2019). Single high-dose oral vitamin D3 treatment in New Zealand children with inflammatory bowel disease. Translational Pediatrics, 8(1), 35-41. doi: 10.21037/tp.2018.11.01

Brown, S. C., Whelan, K., Gearry, R. B., & Day, A. S. (2019). Low FODMAP diet in children and adolescents with functional bowel disorder: A clinical case note review. JGH Open. Advance online publication. doi: 10.1002/jgh3.12231

Isoldi, S., Belsha, D., Yeop, I., Uc, A., Zevit, N., Mamula, P., … Day, A. S., … Thomson, M. (2019). Diagnosis and management of children with Blue Rubber Bleb Nevus Syndrome: A multi-center case series. Digestive & Liver Disease. Advance online publication. doi: 10.1016/j.dld.2019.04.020

Karim, S., Porter, J. A., McCombie, A., Gearry, R. B., & Day, A. S. (2019). Transition clinics: An observational study of themes important to young people with inflammatory bowel disease. Translational Pediatrics, 8(1), 83-89. doi: 10.21037/tp.2019.01.04

Wang, S., Yu, Y., Ryan, P. M., Dang, M., Clark, C., Kontogiannis, V., … Day, A. S., & Zhang, Y. (2019). Association of aspirin therapy with risk of hepatocellular carcinoma: A systematic review and dose-response analysis of cohort studies with 2.5 million participants. Pharmacological Research. Advance online publication. doi: 10.1016/j.phrs.2019.104585

Wall, C. L., McCombie, A. M., Gearry, R. B., & Day, A. S. (2019). Newly diagnosed Crohn's disease treated with standard care or enteral nutrition: Psychological outcomes over 6 months. Inflammatory Intestinal Diseases, 4(1), 7-13. doi: 10.1159/000497323

Vernon-Roberts, A., Lopez, R. N., Frampton, C., Gearry, R. B., Lemberg, D. A., & Day, A. S. (2019). A symptom self-report tool for children with inflammatory bowel disease (IBDnow). Journal of Pediatric Gastroenterology & Nutrition. Advance online publication. doi: 10.1097/MPG.0000000000002329

Rahmani, J., Kord Varkaneh, H., Ryan, P. M., Rashvand, S., Clark, C., Day, A. S., & Hekmatdoost, A. (2019). Dietary total antioxidant capacity and risk of ulcerative colitis: A case-control study. Journal of Digestive Diseases. Advance online publication. doi: 10.1111/1751-2980.12823

Rahmani, J., Kord Varkaneh, H., Ryan, P. M., Zarezadeh, M., Rashvand, S., Clark, C., Day, A. S., & Hekmatdoost, A. (2019). Healthy Eating Index-2015 as a predictor of ulcerative colitis risk in a case-control cohort. Journal of Digestive Diseases. Advance online publication. doi: 10.1111/1751-2980.12826

Lawley, M., Wu, J. W., Navas-López, V. M., Huynh, H. Q., Carroll, M. W., Chen, M., … Day, A. S., … Wine, E. (2018). Global variation in use of enteral nutrition for pediatric Crohn disease. Journal of Pediatric Gastroenterology & Nutrition, 67(2), e22-e29. doi: 10.1097/mpg.0000000000001946

Lopez, R. N., Evans, H. M., Appleton, L., Bishop, J., Chin, S., Mouat, S., Gearry, R. B., & Day, A. S. (2018). Prospective incidence of paediatric inflammatory bowel disease in New Zealand in 2015: Results from the Paediatric Inflammatory Bowel Disease in New Zealand (PINZ) Study. Journal of Pediatric Gastroenterology & Nutrition, 66(5), e122-e126. doi: 10.1097/mpg.0000000000001806

Porter, J. A., MacKenzie, K. E., Darlow, B. A., Butler, R., & Day, A. S. (2018). Gastric emptying in children with type 1 diabetes mellitus: A pilot study. Journal of Paediatrics & Child Health. Advance online publication. doi: 10.1111/jpc.14215

Moeeni, V., Walls, T., & Day, A. S. (2018). A retrospective comparison between the PNST and other paediatric nutritional screening tools. International Journal of Child Health & Nutrition, 7(3), 97-101. doi: 10.6000/1929-4247.2018.07.03.1

Lopez, R. N., Appleton, L., Gearry, R. B., & Day, A. S. (2018). Rising incidence of paediatric inflammatory bowel disease in Canterbury, New Zealand, 1996-2015. Journal of Pediatric Gastroenterology & Nutrition, 66(2), e45-e50. doi: 10.1097/mpg.0000000000001688

Ho, S. S. C., & Day, A. S. (2018). Exclusive enteral nutrition in children with inflammatory bowel disease: Physician perspectives and practice. JGH Open. Advance online publication. doi: 10.1002/jgh3.12121

Garg, M., Leach, S. T., Pang, T., Needham, B., Coffey, M. J., Katz, T., … Day, A. S., … Ooi, C. Y. (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(1), 109-113. doi: 10.1016/j.jcf.2017.07.011

Day, A. S., Gulati, A. S., Patel, N., Boyle, B., Park, K. T., & Saeed, S. A. (2018). The role of combination therapy in pediatric inflammatory bowel disease (IBD): A clinical report from the North American Society for Pediatric Gastroenterology, Hepatology and Nutrition. Journal of Pediatric Gastroenterology & Nutrition, 66(2), 361-368. doi: 10.1097/mpg.0000000000001850

Budd, G. R., Aitchison, A., Day, A. S., & Keenan, J. I. (2017). The effect of polymeric formula on enterocyte differentiation. Innate Immunity, 23(3), 240-248. doi: 10.1177/1753425916689333

Alhagamhmad, M. H., Lemberg, D. A., Day, A. S., Tan, L.-Z., Ooi, C. Y., Krishnan, U., … Leach, S. T. (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(2), 497-505. doi: 10.1016/j.clnu.2016.01.010

Flores, S. E., Aitchison, A., Day, A. S., & Keenan, J. I. (2017). Helicobacter pylori infection perturbs iron homeostasis in gastric epithelial cells. PLoS ONE, 12(9), e0184026. doi: 10.1371/journal.pone.0184026

Holtman, G. A., Lisman-van Leeuwen, Y., Day, A. S., Fagerberg, U. L., Henderson, P., Leach, S. T., … Berger, M. Y. (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(10), 984-991. doi: 10.1001/jamapediatrics.2017.1736

Alhagamhmad, M. H., Day, A. S., Lemberg, D. A., & Leach, S. T. (2017). Exploring and enhancing the anti-inflammatory properties of polymeric formula. Journal of Parenteral & Enteral Nutrition, 41(3), 436-445. doi: 10.1177/0148607115625627

Aggarwal, V., Day, A. S., Connor, S., Leach, S. T., Brown, G., Singh, R., … Craig, P. I. (2017). Role of capsule endoscopy and fecal biomarkers in small-bowel Crohn's disease to assess remission and predict relapse. Gastrointestinal Endoscopy, 86(6), 1070-1078. doi: 10.1016/j.gie.2017.09.011

Bowden, M. R., Ee, L. C., Krishnan, U., O'Loughlin, E. V., Hardikar, W., Carmody, D., … Day, A. S., … Hazell, P. (2017). Family impact and infant emotional outcomes following diagnosis of serious liver disease or transplantation in infancy. Journal of Pediatric Gastroenterology & Nutrition, 64(4), 528-532. doi: 10.1097/mpg.0000000000001404

Lopez, R. N., Evans, H. M., Appleton, L., Bishop, J., Chin, S., Mouat, S., Gearry, R. B., & Day, A. S. (2017). Point prevalence of pediatric inflammatory bowel disease in New Zealand in 2015: Initial results from the PINZ study. Inflammatory Bowel Diseases, 23(8), 1418-1424. doi: 10.1097/mib.0000000000001138

Garg, M., Leach, S. T., Coffey, M. J., Katz, T., Strachan, R., Pang, T., … Day, A. S., Appleton, L., Moeeni, V., … Ooi, C. Y. (2017). Age-dependent variation of fecal calprotectin in cystic fibrosis and healthy children. Journal of Cystic Fibrosis, 16(5), 631-636. doi: 10.1016/j.jcf.2017.03.010

Duvoisin, G., Lopez, R. N., Day, A. S., Lemberg, D. A., Gearry, R. B., & Leach, S. T. (2017). Novel biomarkers and the future potential of biomarkers in inflammatory bowel disease. Mediators of Inflammation, 2017, 1936315. doi: 10.1155/2017/1936315

Chae, A., Aitchison, A., Day, A. S., & Keenan, J. I. (2017). Bovine colostrum demonstrates anti-inflammatory and antibacterial activity in in vitro models of intestinal inflammation and infection. Journal of Functional Foods, 28, 293-298. doi: 10.1016/j.jff.2016.11.016

Wall, C. L., Gearry, R. B., & Day, A. S. (2017). Treatment of active Crohn's disease with exclusive and partial enteral nutrition: A pilot study in adults. Inflammatory Intestinal Diseases, 2(4), 219-227. doi: 10.1159/000489630

Day, A. S., Mylvaganam, G., Shalloo, N., Clarkson, C., Leach, S. T., & Lemberg, D. A. (2017). Assessment of disease-specific knowledge in Australian children with inflammatory bowel disease and their parents. Journal of Paediatrics & Child Health, 53(8), 778-781. doi: 10.1111/jpc.13544

Nightingale, S., Storman, M. O., O'Loughlin, E. V., Shun, A., Thomas, G., Benchimol, E. I., Day, A. S., … Ng, V. L. (2017). Early posthepatoportoenterostomy predictors of native liver survival in biliary atresia. Journal of Pediatric Gastroenterology & Nutrition, 64(2), 203-209. doi: 10.1097/mpg.0000000000001289

Nielsen, S., Needham, B., Leach, S. T., Day, A. S., Jaffe, A., Thomas, T., & Ooi, C. Y. (2016). Disrupted progression of the intestinal microbiota with age in children with cystic fibrosis. Scientific Reports, 6, 24857. doi: 10.1038/srep24857

De Voogd, F. A. E., Gearry, R. B., Mulder, C. J., & Day, A. S. (2016). Osteoprotegerin: A novel biomarker for inflammatory bowel disease and gastrointestinal carcinoma. Journal of Gastroenterology & Hepatology, 31, 1386-1392. doi: 10.1111/jgh.13324

Wright, E. K., Kamm, M. A., De Cruz, P., Hamilton, A. L., Ritchie, K. J., Keenan, J. I., … Burgess, L., Aitchison, A., … Day, A. S., & Gearry, R. B. (2016). Comparison of fecal inflammatory markers in Crohn's disease. Inflammatory Bowel Diseases, 22(5), 1086-1094. doi: 10.1097/mib.0000000000000671

Day, A. S., Hamilton, D., Leach, S. T., & Lemberg, D. A. (2016). Inflammatory markers in children with newly diagnosed inflammatory bowel disease. Journal of Gastroenterology & Hepatology Research, 5(4), 2132-2135. doi: 10.17554/j.issn.2224-3992.2016.05.647

Kaakoush, N. O., Thomas, D. S., Ruzayqat, M. M., Lynch, D., Leach, S. T., Lemberg, D. A., Day, A. S., & Mitchell, H. M. (2016). Campylobacter concisus utilizes blood but not short chain fatty acids despite showing associations with Firmicutes taxa. Microbiology, 162(8), 1388-1397. doi: 10.1099/mic.0.000328

Andre, M., & Day, A. S. (2016). Causes of prolonged jaundice in infancy: 3-year experience in a tertiary paediatric centre. New Zealand Medical Journal, 129(1429), 14-21. Retrieved from https://www.nzma.org.nz/journal

Su, H. Y., Gupta, V., Day, A. S., & Gearry, R. B. (2016). Rising incidence of inflammatory bowel disease in Canterbury, New Zealand. Inflammatory Bowel Diseases, 22(9), 2238-2244. doi: 10.1097/mib.0000000000000829

Kaakoush, N. O., Day, A. S., Leach, S. T., Lemberg, D. A., Nielsen, S., & Mitchell, H. M. (2015). Effect of exclusive enteral nutrition on the microbiota of children with newly diagnosed Crohn's disease. Clinical & Translational Gastroenterology, 6, e71. doi: 10.1038/ctg.2014.21

Ledder, O., Lemberg, D. A., & Day, A. S. (2015). Thiopurine-induced pancreatitis in inflammatory bowel diseases. Expert Review of Gastroenterology & Hepatology, 9(4), 399-403. doi: 10.1586/17474124.2015.992879

Pang, T., Leach, S. T., Katz, T., Jaffe, A., Day, A. S., & Ooi, C. Y. (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 & Hepatology, 30(5), 866-871. doi: 10.1111/jgh.12842

Lemberg, D. A., & Day, A. S. (2015). Crohn disease and ulcerative colitis in children: An update for 2014. Journal of Paediatrics & Child Health, 51, 266-270. doi: 10.1111/jpc.12685

Bowden, M. R., Storman, M., Hardikar, W., Ee, L. C., Krishnan, U., Carmody, D., … Day, A. S., … Hazell, P. (2015). Family adjustment and parenting stress when an infant has serious liver disease: The Australian experience. Journal of Pediatric Gastroenterology & Nutrition, 60, 717-722. doi: 10.1097/mpg.0000000000000742

Wright, E. K., Kamm, M. A., De Cruz, P., Hamilton, A. L., Ritchie, K. J., Krejany, E. O., … Day, A. S., … Gearry, R. B. (2015). Measurement of fecal calprotectin improves monitoring and detection of recurrence of Crohn's disease following surgery. Gastroenterology, 148, 938-947. doi: 10.1053/j.gastro.2015.01.026

Kaakoush, N. O., Castaño-Rodríguez, N., Day, A. S., Lemberg, D. A., Leach, S. T., & Mitchell, H. M. (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(3), 303-306. doi: 10.1099/jmm.0.000005

Alhagamhmad, M. H., Leach, S. T., Lemberg, D. A., & Day, A. S. (2015). Changing patterns in the epidemiology of Crohn disease. Journal of Gastroenterology & Hepatology Research, 4(11), 1805-1809. doi: 10.17554/j.issn.2224-3992.2015.04.550

Leach, S. T., Lui, K., Naing, Z., Dowd, S. E., Mitchell, H. M., & Day, A. S. (2015). Multiple opportunistic pathogens, but not pre-existing inflammation, may be associated with necrotizing enterocolitis. Digestive Diseases & Sciences, 60(12), 3728-3734. doi: 10.1007/s10620-015-3830-6

Shepherd, D., Day, A. S., Leach, S. T., Lopez, R., Messenger, R., Woodhead, H. J., … Lemberg, D. A. (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 & Nutrition, 61(4), 411-414. doi: 10.1097/mpg.0000000000000823

Kho, A., Whitehead, M., & Day, A. S. (2015). Coeliac disease in children in Christchurch, New Zealand: Presentation and patterns from 2000-2010. World Journal of Clinical Pediatrics, 4(4), 148-154. doi: 10.5409/wjcp.v4.i4.148

Dhaliwal, J., Leach, S., Katz, T., Nahidi, L., Pang, T., Lee, J. M., … Day, A. S., … Ooi, C. Y. (2015). Intestinal inflammation and impact on growth in children with cystic fibrosis. Journal of Pediatric Gastroenterology & Nutrition, 60(4), 521-526. doi: 10.1097/mpg.0000000000000683

Moeeni, V., Shojaee, P., Kianifar, H., Walls, T., Pattemore, P., & Day, A. S. (2015). The prospective assessment of nutrition in children with cystic fibrosis. International Journal of Child Health & Nutrition, 4(3), 129-134.

Boon, G. J. A. M., Day, A. S., Mulder, C. J., & Gearry, R. B. (2015). Are faecal markers good indicators of mucosal healing in inflammatory bowel disease? World Journal of Gastroenterology, 21(40), 11469-11480. doi: 10.3748/wjg.v21.i40.11469

Flores, S. E., Day, A. S., & Keenan, J. I. (2015). Measurement of total iron in Helicobacter pylori-infected gastric epithelial cells. Biometals, 28, 143-150. doi: 10.1007/s10534-014-9810-z

Falvey, J. D., Hoskin, T., Meijer, B., Ashcroft, A., Walmsley, R., Day, A. S., & Gearry, R. B. (2015). Disease activity assessment in IBD: Clinical indices and biomarkers fail to predict endoscopic remission. Inflammatory Bowel Diseases, 21, 824-831. doi: 10.1097/mib.0000000000000341

Ooi, C. Y., Pang, T., Leach, S. T., Katz, T., Day, A. S., & Jaffe, A. (2015). Fecal human β-defensin 2 in children with cystic fibrosis: Is there a diminished intestinal innate immune response? Digestive Diseases & Sciences, 60(10), 2946-2952. doi: 10.1007/s10620-015-3842-2

Bishop, J., Lemberg, D. A., & Day, A. S. (2014). Managing inflammatory bowel disease in adolescent patients. Adolescent Health, Medicine & Therapeutics, 5. doi: 10.2147/AHMT.S37956

Naidoo, C. M. Y., Leach, S. T., Day, A. S., & Lemberg, D. A. (2014). Inflammatory bowel disease in children of Middle Eastern descent. International Journal of Pediatrics, 2014, 906128. doi: 10.1155/2014/906128

Day, A. S., Lemberg, D. A., Nichol, A., Clarkson, C., & Otley, A. R. (2014). Generalisability of the inflammatory bowel disease knowledge inventory device to assess disease-related knowledge in Australian children. Journal of Paediatrics & Child Health, 50(8), 591-595. doi: 10.1111/jpc.12612

Pang, T., Leach, S. T., Katz, T., Day, A. S., & Ooi, C. Y. (2014). Fecal biomarkers of intestinal health and disease in children. Frontiers in Pediatrics, 2, 6. doi: 10.3389/fped.2014.00006

Moeeni, V., Walls, T., & Day, A. S. (2014). The STRONGkids nutritional risk screening tool can be used by paediatric nurses to identify hospitalised children at risk. Acta Paediatrica, 103, e528-e531. doi: 10.1111/apa.12768

Raheem, M., Leach, S. T., Day, A. S., & Lemberg, D. A. (2014). The pathophysiology of eosinophilic esophagitis. Frontiers in Pediatrics, 2, 41. doi: 10.3389/fped.2014.00041

Day, A. S., Lemberg, D. A., & Gearry, R. B. (2014). Inflammatory bowel disease in Australasian children and adolescents. Gastroenterology Research & Practice, 2014, 703890. doi: 10.1155/2014/703890

Kenrick, K., & Day, A. S. (2014). Coeliac disease: Where are we in 2014? Australian Family Physician, 43(10), 674-678.

Wall, C. L., Gearry, R. B., & Day, A. S. (2014). Polymeric formula is more palatable than elemental formula to adults with Crohn’s disease. e-SPEN Journal, 9(6), e200-e203. doi: 10.1016/j.clnme.2014.08.003

Meijer, B., Hoskin, T., Ashcroft, A., Burgess, L., Keenan, J. I., Falvey, J., Gearry, R. B., & Day, A. S. (2014). Total soluble and endogenous secretory receptor for advanced glycation endproducts (RAGE) in IBD. Journal of Crohn's & Colitis, 8(6), 513-520. doi: 10.1016/j.crohns.2013.11.004

Haaland, D., Day, A. S., & Otley, A. (2014). Development and validation of a pediatric IBD Knowledge Inventory Device: The IBD-KID. Journal of Pediatric Gastroenterology & Nutrition, 58(3), 313-319. doi: 10.1097/mpg.0000000000000210

Wright, E. K., Williams, J., Andrews, J. M., Day, A. S., Gearry, R. B., Bampton, P., … De Cruz, P. (2014). Perspectives of paediatric and adult gastroenterologists on transfer and transition care of adolescents with inflammatory bowel disease. Internal Medicine Journal, 44(5), 490-496. doi: 10.1111/imj.12402

Nahidi, L., Day, A. S., Lemberg, D. A., & Leach, S. T. (2014). Paediatric inflammatory bowel disease: A mechanistic approach to investigate exclusive enteral nutrition treatment. Scientifica, 2014, 423817. doi: 10.1155/2014/423817

Porter, J. A., MacKenzie, K., Darlow, B., & Day, A. S. (2014). Looking for coeliac disease in children with type 1 diabetes mellitus. Journal of Paediatrics & Child Health, 50(10), 811-816. doi: 10.1111/jpc.12643

Kaakoush, N. O., Castaño-Rodríguez, N., Day, A. S., Lemberg, D. A., Leach, S. T., & Mitchell, H. M. (2014). 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(Part 1), 99-105. doi: 10.1099/jmm.0.067231-0

Keenan, J. I., Hooper, E. M., Tyrer, P. C., & Day, A. S. (2014). Influences of enteral nutrition upon CEACAM6 expression by intestinal epithelial cells. Innate Immunity, 20(8), 848-856. doi: 10.1177/1753425913513309

Huang, Y., Lemberg, D. A., Day, A. S., Dixon, B., Leach, S., Bujanover, Y., … Thomas, P. S. (2014). Markers of inflammation in the breath in paediatric inflammatory bowel disease. Journal of Pediatric Gastroenterology & Nutrition, 59(4), 505-510. doi: 10.1097/mpg.0000000000000450

Ledder, O. D., Lemberg, D. A., Ooi, C. Y., & Day, A. S. (2013). Are thiopurines always contraindicated after thiopurine-induced pancreatitis in inflammatory bowel disease? Journal of Pediatric Gastroenterology & Nutrition, 57(5), 583-586. doi: 10.1097/MPG.0b013e31829f16fc

Mahendran, V., Tan, Y. S., Riordan, S. M., Grimm, M. C., Day, A. S., Lemberg, D. A., … Zhang, L. (2013). The prevalence and polymorphisms of zonula occluden toxin gene in multiple Campylobacter concisus strains isolated from saliva of patients with inflammatory bowel disease and controls. PLoS ONE, 8(9), e75525. doi: 10.1371/journal.pone.0075525

Hallab, J. C., Leach, S. T., Zhang, L., Mitchell, H. M., Oei, J., Lui, K., & Day, A. S. (2013). Molecular characterization of bacterial colonization in the preterm and term infant's intestine. Indian Journal of Pediatrics, 80(1), 1-5. doi: 10.1007/s12098-012-0753-5

Day, A. S., Ehn, M., Gearry, R. B., Lemberg, D. A., & Leach, S. T. (2013). Fecal S100A12 in healthy infants and children. Disease Markers, 35(5), 295-299. doi: 10.1155/2013/873582

van de Logt, F., & Day, A. S. (2013). S100A12: A noninvasive marker of inflammation in inflammatory bowel disease. Journal of Digestive Diseases, 12(2), 62-67. doi: 10.1111/1751-2980.12012

Day, A. S. (2013). Pediatric Gastroenterology: Challenges great and small. Frontiers in Pediatrics, 1, 2. doi: 10.3389/fped.2013.00002

Keenan, J. I., Salm, N., Pearson, J. F., Gearry, R. B., & Day, A. S. (2013). Campylobacter seroreactivity in adults with recent onset of Crohn’s disease. Journal of Gastroenterology & Hepatology Research, 2(3), 468-472. doi: 10.6051/j.issn.2224-3992.2013.02.228

Nahidi, L., Leach, S. T., Mitchell, H. M., Kaakoush, N. O., Lemberg, D. A., Munday, J. S., … Day, A. S. (2013). Inflammatory bowel disease therapies and gut function in a colitis mouse model. BioMed Research International, 2013, 909613. doi: 10.1155/2013/909613

Day, A. S., & Burgess, L. (2013). Exclusive enteral nutrition and induction of remission of active Crohn's disease in children. Expert Review of Clinical Immunology, 9(4), 375-384. doi: 10.1586/eci.13.12

Moeeni, V., Walls, T., & Day, A. S. (2013). Nutritional status and nutrition risk screening in hospitalized children in New Zealand. Acta Paediatrica, 102(9), e419-e423. doi: 10.1111/apa.12299

Nahidi, L., Leach, S. T., Lemberg, D. A., & Day, A. S. (2013). Osteoprotegerin exerts its pro-inflammatory effects through nuclear factor-κB activation. Digestive Diseases & Sciences, 58(11), 3144-3155. doi: 10.1007/s10620-013-2851-2

Wall, C. L., Day, A. S., & Gearry, R. B. (2013). Use of exclusive enteral nutrition in adults with Crohn's disease: A review. World Journal of Gastroenterology, 19(43), 7652-7660. doi: 10.3748/wjg.v19.i43.7652

Meijer, B., Gearry, R. B., & Day, A. S. (2012). The role of S100A12 as a systemic marker of inflammation. International Journal of Inflammation, 2012, 907078. doi: 10.1155/2012/907078

Kaakoush, N. O., Day, A. S., Huinao, K. D., Leach, S. T., Lemberg, D. A., Dowd, S. E., & Mitchell, H. M. (2012). Microbial dysbiosis in pediatric patients with Crohn's disease. Journal of Clinical Microbiology, 50(10), 3258-3266. doi: 10.1128/jcm.01396-12

Critch, J., Day, A. S., Otley, A., King-Moore, C., Teitelbaum, J. E., & Shashidhar, H. (2012). Use of enteral nutrition for the control of intestinal inflammation in pediatric Crohn disease. Journal of Pediatric Gastroenterology & Nutrition, 54(2), 298-305. doi: 10.1097/MPG.0b013e318235b397

Ramsden, L., & Day, A. S. (2012). Paediatric growth charts: How do we use them and can we use them better? Journal of Paediatrics & Child Health, 48(1), 22-25. doi: 10.1111/j.1440-1754.2011.02185.x

Ismail, Y., Mahendran, V., Octavia, S., Day, A. S., Riordan, S. M., Grimm, M. C., … Zhang, L. (2012). Investigation of the enteric pathogenic potential of oral Campylobacter concisus strains isolated from patients with inflammatory bowel disease. PLoS ONE, 7(5), e38217. doi: 10.1371/journal.pone.0038217

Bentley, R. W., Keown, D. A., Gearry, R. B., Cameron, V. A., Keenan, J., Roberts, R. L., & Day, A. S. (2012). Vitamin D receptor polymorphisms in colorectal cancer in New Zealand: An association study. New Zealand Medical Journal, 125(1356). Retrieved from http://www.nzma.org.nz/journal

Lopez, R., Beasley, S. W., Blakelock, R., Maoate, K., McBride, C. A., Slade, C., Day, A. S., & King, S. K. (2012). The role of steroids in children with multiple recurrences of intussusception. Journal of Paediatrics & Child Health, 48(2), 180-181. doi: 10.1111/j.1440-1754.2011.02406.x

Nahidi, L., Day, A. S., Lemberg, D. A., & Leach, S. T. (2012). Differential effects of nutritional and non-nutritional therapies on intestinal barrier function in an in vitro model. Journal of Gastroenterology, 47(2), 107-117. doi: 10.1007/s00535-011-0471-1

Day, A. S., Ledder, O., Leach, S. T., & Lemberg, D. A. (2012). Crohn's and colitis in children and adolescents. World Journal of Gastroenterology, 18(41), 5862-5869. doi: 10.3748/wjg.v18.i41.5862

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