Dr. Alan Leichtner's research focuses on developing and evaluating treatments for inflammatory bowel disease, gastroesophageal reflux, and celiac disease in children.
Research Background
Dr. Alan Leichtner is a graduate of Harvard Medical School. He completed an internship, residency and fellowship at Boston Children's Hospital.
Education
Medical School
Harvard Medical School
1977
Boston
MA
Internship
Boston Children's Hospital
1978
Boston
MA
Residency
Boston Children's Hospital
1980
Boston
MA
Fellowship
Gastroenterology
Boston Children's Hospital
1983
Boston
MA
Publications
From Bystander-to-Upstander: A Novel Intervention Framework to Address Microaggressions in a Pediatric Academic Medical Center. Acad Pediatr. 2024 Dec 27; 102630. View Abstract
'Blood and guts': Interleaving gastroenterology and haematology physiology. Med Educ. 2024 11; 58(11):1393-1394. View Abstract
The Closing of an Academic Children's Hospital: Ethical Considerations for Graduate Medical Education. J Grad Med Educ. 2024 Aug; 16(4):395-398. View Abstract
How to define yourself as a medical educator along the path to academic promotion. J Pediatr Gastroenterol Nutr. 2024 Aug; 79(2):202-205. View Abstract
Lost in the pandemic: COVID-19's impact on health professions educators. Clin Teach. 2024 Oct; 21(5):e13764. View Abstract
Lack of standardization and faculty development in pediatric colonoscopy: A qualitative study. J Pediatr Gastroenterol Nutr. 2024 Apr; 78(4):948-956. View Abstract
Beyond the Workshop: Results From a Longitudinal, Interprofessional Teaching Certificate Program. J Med Educ Curric Dev. 2023 Jan-Dec; 10:23821205231205433. View Abstract
Cytotoxic T Lymphocyte Antigen 4 Haploinsufficiency Presenting As Refractory Celiac-Like Disease: Case Report. Front Immunol. 2022; 13:894648. View Abstract
Creating a health equity and inclusion office in an academic pediatric medical center: priorities addressed and lessons learned. Pediatr Radiol. 2022 08; 52(9):1776-1785. View Abstract
Non-responsive celiac disease in children on a gluten free diet. World J Gastroenterol. 2021 Apr 07; 27(13):1311-1320. View Abstract
North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition Position Paper on Entrustable Professional Activities: Development of Pediatric Gastroenterology, Hepatology, and Nutrition Entrustable Professional Activities. J Pediatr Gastroenterol Nutr. 2020 07; 71(1):136-143. View Abstract
Pediatric Gastroenterology, Hepatology, and Nutrition Entrustable Professional Activities: Development of an Assessment Tool and Curricular Resources. J Pediatr Gastroenterol Nutr. 2020 07; 71(1):e40-e45. View Abstract
Visiting Jack: Mixed Methods Evaluation of a Virtual Home Visit Curriculum With a Child With Medical Complexity. Acad Pediatr. 2020 Sep - Oct; 20(7):1020-1028. View Abstract
Use of Nazi torture device image in digital scholarship article. Med Teach. 2020 06; 42(6):717-718. View Abstract
Training in Endoscopy: Coaching, Deliberate Practice, and Reflection. J Pediatr Gastroenterol Nutr. 2019 03; 68(3):298-300. View Abstract
Interprofessional provider educational needs and preferences regarding the provision of sexual and reproductive health care in cystic fibrosis. J Cyst Fibros. 2019 09; 18(5):671-676. View Abstract
Red Spot Lesions in the Duodenal Bulb Are a Highly Specific Endoscopic Sign of Celiac Disease: A Prospective Study. J Pediatr Gastroenterol Nutr. 2019 02; 68(2):251-255. View Abstract
Lack of Follow-up of Pediatric Patients With Celiac Disease. Clin Gastroenterol Hepatol. 2019 11; 17(12):2603-2604. View Abstract
Phenotype, penetrance, and treatment of 133 cytotoxic T-lymphocyte antigen 4-insufficient subjects. J Allergy Clin Immunol. 2018 12; 142(6):1932-1946. View Abstract
Objective Assessment of Fellows: Doable and Worth Doing. J Pediatr Gastroenterol Nutr. 2017 04; 64(4):498-500. View Abstract
Value of IgA tTG in Predicting Mucosal Recovery in Children With Celiac Disease on a Gluten-Free Diet. J Pediatr Gastroenterol Nutr. 2017 02; 64(2):286-291. View Abstract
The Boston Children's Hospital Academy: Development and Initial Assessment of a Hospital-Based Teaching Academy. Acad Med. 2016 12; 91(12):1651-1654. View Abstract
'Constipation Challenge' game improves guideline knowledge and implementation. Med Educ. 2016 May; 50(5):589-90. View Abstract
Shared care: a quality improvement initiative to optimize primary care management of constipation. Pediatrics. 2015 May; 135(5):e1300-7. View Abstract
Early-onset Crohn's disease and autoimmunity associated with a variant in CTLA-4. Gut. 2015 Dec; 64(12):1889-97. View Abstract
Assessment tools: the next frontier in competency-based medical education. J Pediatr Gastroenterol Nutr. 2014 Oct; 59(4):425-7. View Abstract
Graduate medical education in humanism and professionalism: a needs assessment survey of pediatric gastroenterology fellows. J Pediatr Gastroenterol Nutr. 2014 Jan; 58(1):34-7. View Abstract
NASPGHAN guidelines for training in pediatric gastroenterology. J Pediatr Gastroenterol Nutr. 2013 Jan; 56 Suppl 1:S1-8. View Abstract
Navigating the gluten-free diet in college. J Pediatr Gastroenterol Nutr. 2012 Dec; 55(6):740-4. View Abstract
Multicenter study on season of birth and celiac disease: evidence for a new theoretical model of pathogenesis. J Pediatr. 2013 Mar; 162(3):501-4. View Abstract
Pediatric gastroenterology fellowship: is the match working? J Pediatr Gastroenterol Nutr. 2010 Aug; 51(2):243-4. View Abstract
Variability of histopathological changes in childhood celiac disease. Am J Gastroenterol. 2010 Jan; 105(1):207-12. View Abstract
Restorative proctocolectomy and ileal pouch-anal anastomosis in children. Dis Colon Rectum. 2009 Sep; 52(9):1645-9. View Abstract
First evidence of a possible association between gastric acid suppression during pregnancy and childhood asthma: a population-based register study. Clin Exp Allergy. 2009 Feb; 39(2):246-53. View Abstract
Desquamative enteropathy and pyloric atresia without skin disease caused by a novel intracellular beta4 integrin mutation. J Pediatr Gastroenterol Nutr. 2008 Nov; 47(5):585-91. View Abstract
Clinical significance of colonic intraepithelial lymphocytosis in a pediatric population. Mod Pathol. 2009 Jan; 22(1):13-20. View Abstract
Fellowship training in pediatric gastroenterology in the United States: where are we going? Does one size fit all? J Pediatr Gastroenterol Nutr. 2008 Sep; 47(3):274-6. View Abstract
Clinical effects and safety of rituximab for treatment of refractory pediatric autoimmune diseases. J Pediatr. 2007 Apr; 150(4):376-82. View Abstract
Celiac disease presenting with chilblains in an adolescent girl. Pediatr Dermatol. 2006 Sep-Oct; 23(5):451-4. View Abstract
Serologic testing with ANCA, ASCA, and anti-OmpC in children and young adults with Crohn's disease and ulcerative colitis: diagnostic value and correlation with disease phenotype. Am J Gastroenterol. 2004 Nov; 99(11):2235-41. View Abstract
Depressive symptoms and inflammatory bowel disease in children and adolescents: a cross-sectional study. J Pediatr Gastroenterol Nutr. 2004 Oct; 39(4):395-403. View Abstract
Pediatric patients with untreated ulcerative colitis may present initially with unusual morphologic findings. Am J Surg Pathol. 2004 Feb; 28(2):190-7. View Abstract
Retrospective study of hepatic enzyme elevations in children treated with olanzapine, divalproex, and their combination. J Am Acad Child Adolesc Psychiatry. 2003 Oct; 42(10):1227-33. View Abstract
Complementary medicine use in children and young adults with inflammatory bowel disease. Am J Gastroenterol. 2002 Feb; 97(2):382-8. View Abstract
Elevated serum hepatocyte growth factor in children and young adults with inflammatory bowel disease. J Pediatr Gastroenterol Nutr. 2001 Nov; 33(5):548-53. View Abstract
Oral tacrolimus treatment of severe colitis in children. J Pediatr. 2000 Dec; 137(6):794-9. View Abstract
Allergic esophagitis in children: a clinicopathological entity. Am J Surg Pathol. 1999 Apr; 23(4):390-6. View Abstract
Human intestinal M cells display the sialyl Lewis A antigen. Infect Immun. 1999 Feb; 67(2):946-53. View Abstract
Elevated serum vascular endothelial growth factor in children and young adults with Crohn's disease. Dig Dis Sci. 1999 Feb; 44(2):424-30. View Abstract
Quality-of-life assessment after ileoanal pull-through for ulcerative colitis and familial adenomatous polyposis. J Pediatr Surg. 1999 Jan; 34(1):163-6. View Abstract
Aluminum in large and small volume parenterals used in total parenteral nutrition: response to the Food and Drug Administration notice of proposed rule by the North American Society for Pediatric Gastroenterology and Nutrition. J Pediatr Gastroenterol Nutr. 1998 Oct; 27(4):457-60. View Abstract
Serum leptin in children and young adults with inflammatory bowel disease. J Pediatr Gastroenterol Nutr. 1998 May; 26(5):500-5. View Abstract
Vitamins A and E serum levels in children and young adults with inflammatory bowel disease: effect of disease activity. J Pediatr Gastroenterol Nutr. 1998 Feb; 26(2):129-35. View Abstract
Clinical outcome of ulcerative proctitis in children. J Pediatr Gastroenterol Nutr. 1997 Aug; 25(2):149-52. View Abstract
Surgery for Crohn's disease in infants and children. J Pediatr Surg. 1997 Jul; 32(7):1063-7; discussion 1067-8. View Abstract
Complications following percutaneous endoscopic gastrostomy and subsequent catheter replacement in children and young adults. Gastrointest Endosc. 1997 Jan; 45(1):64-71. View Abstract
Tacrolimus (FK-506) treatment of fulminant colitis in a child. J Pediatr Gastroenterol Nutr. 1996 Oct; 23(3):329-33. View Abstract
Elevation of serum interleukin-6 but not serum-soluble interleukin-2 receptor in children with Crohn's disease. J Pediatr Gastroenterol Nutr. 1996 Aug; 23(2):164-71. View Abstract
Gastric and esophageal intraepithelial lymphocytes in pediatric celiac disease. Am J Surg Pathol. 1996 Jul; 20(7):865-70. View Abstract
Treatment of pediatric autoimmune enteropathy with tacrolimus (FK506). Gastroenterology. 1996 Jul; 111(1):237-43. View Abstract
Long-term hepatic regeneration and function in infants and children following liver resection. J Am Coll Surg. 1996 Jun; 182(6):515-9. View Abstract
Intraoperative enteroscopy in the diagnosis of partial intestinal obstruction in infancy. Dig Dis Sci. 1995 Oct; 40(10):2236-8. View Abstract
Aminosalicylates for the treatment of inflammatory bowel disease. J Pediatr Gastroenterol Nutr. 1995 Oct; 21(3):245-52. View Abstract
Endoscopic ligation of esophageal varices in children. J Pediatr Gastroenterol Nutr. 1995 Feb; 20(2):202-8. View Abstract
Medical therapies for pediatric gastrointestinal disease. Subcommittee on Therapeutics of the Patient Care Committee North American Society for Pediatric Gastroenterology and Nutrition. J Pediatr Gastroenterol Nutr. 1994 Apr; 18(3):269. View Abstract
Long-term nutritional and metabolic consequences of pancreaticoduodenectomy in children. Surgery. 1994 Mar; 115(3):382-8. View Abstract
Allergic proctocolitis in infants: a prospective clinicopathologic biopsy study. Hum Pathol. 1993 Jun; 24(6):668-74. View Abstract
The antegrade colonogram: extending the small bowel follow through for children suspected of having colonic disease. Pediatr Radiol. 1992; 22(8):573-6. View Abstract
Pancreatitis following scoliosis surgery in children and young adults. J Pediatr Orthop. 1991 Sep-Oct; 11(5):594-8. View Abstract
Longitudinal assessment of type I procollagen in children with inflammatory bowel disease subjected to surgery. J Pediatr Gastroenterol Nutr. 1989 Jan; 8(1):68-74. View Abstract
Carbohydrate malabsorption following fruit juice ingestion in young children. Pediatrics. 1988 Jul; 82(1):64-8. View Abstract
Relationship of type I procollagen to corticosteroid therapy in children with inflammatory bowel disease. J Pediatr. 1988 Jun; 112(6):893-8. View Abstract
Clinical and laboratory correlates of esophagitis in young children. J Pediatr Gastroenterol Nutr. 1988 Jan-Feb; 7(1):52-6. View Abstract
Hypertension associated with unilateral hydronephrosis as a complication of Crohn's disease. J Pediatr Surg. 1987 Nov; 22(11):1049-50. View Abstract
Cyclosporine treatment of autoimmune chronic active hepatitis. Gastroenterology. 1987 Oct; 93(4):890-3. View Abstract
Type 1 procollagen as a biochemical marker of growth in children with inflammatory bowel disease. J Pediatr. 1986 Oct; 109(4):619-24. View Abstract
Effect of metoclopramide on prolonged intraesophageal pH testing in infants with gastroesophageal reflux. J Pediatr Gastroenterol Nutr. 1986 Sep-Oct; 5(5):716-20. View Abstract
Chronic diarrhea associated with hypogammaglobulinemia and enteropathy in infants and children. Dig Dis Sci. 1985 Dec; 30(12):1149-55. View Abstract
Cerebral vascular accident during the recovery phase of hemolytic uremic syndrome. Int J Pediatr Nephrol. 1985 Oct-Dec; 6(4):287-8. View Abstract
Discordance for biliary atresia in two sets of monozygotic twins. J Pediatr. 1985 Sep; 107(3):420-2. View Abstract
Apple juice. An unappreciated cause of chronic diarrhea. Am J Dis Child. 1985 May; 139(5):503-5. View Abstract
Pseudopheochromocytoma and cardiac arrest associated with phenylpropanolamine. JAMA. 1985 Mar 15; 253(11):1609-10. View Abstract
Recent advances in diagnosis and treatment of gastrointestinal hemorrhage in infants and children. J Pediatr. 1985 Jan; 106(1):1-9. View Abstract
Regulation of low density lipoprotein receptor function in a human hepatoma cell line. Hepatology. 1984 Sep-Oct; 4(5):897-901. View Abstract
Addition of a mannose-6-phosphate-containing oligosaccharide alters cellular processing of low density lipoprotein by parental and LDL-receptor-defective Chinese hamster ovary cells. J Cell Sci. 1984 Jun; 68:183-94. View Abstract
Horizontal nonparenteral spread of hepatitis B among children. Ann Intern Med. 1981 Mar; 94(3):346-9. View Abstract