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Health Sciences profile

Professor Andrew Day

PositionHead of Department
DepartmentDepartment of Paediatrics (UOC)
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

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

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

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

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

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

Chapter in Book - Research

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

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

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

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

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

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

McCombie, A., Gearry, R. B., Lopez, R. N., Lönnfors, S., & Day, A. S. (2017). Enhancements in confidence, acceptance, and friendship at a summer camp for children with inflammatory bowel disease. Journal of Pediatric Gastroenterology & Nutrition. Advance online publication. doi: 10.1097/mpg.0000000000001526

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

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. Advance online publication. doi: 10.1111/jpc.13544

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

Lopez, R. N., Evans, H. M., Appleton, L., Bishop, J., Chin, S., Mouat, S., Gearry, R., & 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. Advance online publication. doi: 10.1097/mib.0000000000001138

Lopez, R. N., Appleton, L., Gearry, R. B., & Day, A. S. (2017). Rising incidence of paediatric inflammatory bowel disease in Canterbury, New Zealand, 1996-2015. Journal of Pediatric Gastroenterology & Nutrition. Advance online publication. doi: 10.1097/mpg.0000000000001688

Holtmann, 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. Advance online publication. doi: 10.1001/jamapediatrics.2017.1736

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

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

Garg, M., Leach, S. T., Pang, T., Needham, B., Coffey, M. J., Katz, T., … Day, A. S., … Ooi, C. Y. (2017). Age-related levels of fecal M2-pyruvate kinase in children with cystic fibrosis and healthy children 0 to 10years old. Journal of Cystic Fibrosis. Advance online publication. doi: 10.1016/j.jcf.2017.07.011

Aggarwal, V., Day, A. S., Conor, 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. Advance online publication. doi: 10.1016/j.gie.2017.09.011

Lopez, R. N., Evans, H. M., Appleton, L., Bishop, J., Chin, S., Mouat, S., Gearry, R. B., & Day, A. S. (2017). Prospective incidence of paediatric inflammatory bowel disease in New Zealand in 2015: Results from the PINZ Study. Journal of Pediatric Gastroenterology & Nutrition. Advance online publication. doi: 10.1097/mpg.0000000000001806

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

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

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

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

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

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

Alhagamhmad, M. H., Day, A. S., Lemberg, D. A., & Leach, S. T. (2016). An overview of the bacterial contribution to Crohn disease pathogenesis. Journal of Medical Microbiology. Advance online publication. doi: 10.1099/jmm.0.000331

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Aurangzeb, B., Whitten, K. E., Harrison, B., Mitchell, M., Kepreotes, H., Sidler, M., … Day, A. S. (2012). Prevalence of malnutrition and risk of under-nutrition in hospitalized children. Clinical Nutrition, 31(1), 35-40. doi: 10.1016/j.clnu.2011.08.011

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

Lee, J. M., Leach, S. T., Katz, T., Day, A. S., Jaffe, A., & Ooi, C. Y. (2012). Update of faecal markers of inflammation in children with cystic fibrosis. Mediators of Inflammation, 2012, 948367. doi: 10.1155/2012/948367

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

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., Judd, T., Lemberg, D. A., & Leach, S. T. (2012). Fecal M2-PK in children with Crohn's disease: A preliminary report. Digestive Diseases & Sciences, 57(8), 2166-2170. doi: 10.1007/s10620-012-2215-3

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

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

Moeeni, V., Walls, T., & Day, A. S. (2012). Assessment of nutritional status and nutritional risk in hospitalised Iranian children. Acta Paediatrica, 101(10), e446-e451. doi: 10.1111/j.1651-2227.2012.02789.x

Lion, M., Gearry, R. B., Day, A. S., & Eglinton, T. W. (2012). The cost of paediatric and perianal Crohn's disease in Canterbury, New Zealand. New Zealand Medical Journal, 125(1349). Retrieved from http://www.nzma.org.nz/journal

Lambert, B., Lemberg, D. A., Leach, S. T., & Day, A. S. (2012). Longer-term outcomes of nutritional management of Crohn's disease in children. Digestive Diseases & Sciences, 57(8), 2171-2177. doi: 10.1007/s10620-012-2232-2

Tilakaratne, S., Day, A., & Lemberg, D. (2012). Eosinophilic esophagitis and food impaction: An instructive case. Turkish Journal of Gastroenterology, 23(3), 294-297. doi: 10.4318/tjg.2012.0386

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

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

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

Nahidi, L., Leach, S. T., Sidler, M. A., Levin, A., Lemberg, D. A., & Day, A. S. (2011). Osteoprotegerin in pediatric Crohn's disease and the effects of exclusive enteral nutrition. Inflammatory Bowel Diseases, 17(2), 516-523. doi: 10.1002/ibd.21361

Loughran-Fowlds, A., Leach, S., Lin, J., Oei, J., Henry, R., Day, A. S., & Lui, K. (2011). Respiratory disease and early serum S100A12 changes in very premature infants. Acta Paediatrica, 20, 1538-1543. doi: 10.1111/j.1651-2227.2011.02384.x

Li-Kim-Moy, J. P., Tobias, V., Day, A. S., Leach, S., & Lemberg, D. A. (2011). Esophageal subepithelial fibrosis and hyalinization are features of eosinophilic esophagitis. Journal of Pediatric Gastroenterology & Nutrition, 52(2), 147-153. doi: 10.1097/MPG.0b013e3181ef37a1

Levin, A. D., Wadhera, V., Leach, S. T., Woodhead, H. J., Lemberg, D. A., Mendoza-Cruz, A. C., & Day, A. S. (2011). Vitamin D deficiency in children with inflammatory bowel disease. Digestive Diseases & Sciences, 56(3), 830-836. doi: 10.1007/s10620-010-1544-3

Aurangzeb, B., Leach, S. T., Lemberg, D. A., & Day, A. S. (2011). Assessment of nutritional status and serum leptin in children with inflammatory bowel disease. Journal of Pediatric Gastroenterology & Nutrition, 52(5), 536-541. doi: 10.1097/MPG.0b013e3181f87a95

Kaakoush, N. O., Deshpande, N. P., Wilkins, M. R., Tan, C. G., Burgos-Portugal, J. A., Raftery, M. J., Day, A. S., … Mitchell, H. (2011). The pathogenic potential of Campylobacter concisus strains associated with chronic intestinal diseases. PLoS ONE, 6(12), e29045. doi: 10.1371/journal.pone.0029045

Stewart, M., Day, A. S., & Otley, A. (2011). Physician attitudes and practices of enteral nutrition as primary treatment of paediatric Crohn disease in North America. Journal of Pediatric Gastroenterology & Nutrition, 52(1), 38-42. doi: 10.1097/MPG.0b013e3181e2c724

Judd, T. A., Day, A. S., Lemberg, D. A., Turner, D., & Leach, S. T. (2011). Update of fecal markers of inflammation in inflammatory bowel disease. Journal of Gastroenterology & Hepatology, 26(10), 1493-1499. doi: 10.1111/j.1440-1746.2011.06846.x

Baumgart, D. C., Bernstein, C. N., Abbas, Z., Colombel, J. F., Day, A. S., D'Haens, G., … Yamamoto-Furusho, J. K. (2011). IBD around the world: Comparing the epidemiology, diagnosis, and treatment: Proceedings of the World Digestive Health Day 2010: Inflammatory bowel disease task force meeting. Inflammatory Bowel Diseases, 17(2), 639-644. doi: 10.1002/ibd.21409

Wadhera, V., Lemberg, D. A., Leach, S. T., & Day, A. S. (2011). Complementary and alternative medicine in children attending gastroenterology clinics: Usage patterns and reasons for use. Journal of Paediatrics & Child Health, 47(12), 904-910. doi: 10.1111/j.1440-1754.2011.02100.x

Day, A. S., & Keenan, J. (2011). Probiotic-mediated modulation of host inflammation. Expert Review of Gastroenterology & Hepatology, 5(3), 319-321. doi: 10.1586/egh.11.34

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