Nadia Ameen, MBBS
Professor of Pediatrics (Gastroenterology)Cards
Appointments
Additional Titles
Affiliated Faculty, Yale Institute for Global Health
Contact Info
Pediatric Gastroenterology & Hepatology
PO Box 208064
New Haven, CT 06520-8064
United States
Appointments
Additional Titles
Affiliated Faculty, Yale Institute for Global Health
Contact Info
Pediatric Gastroenterology & Hepatology
PO Box 208064
New Haven, CT 06520-8064
United States
Appointments
Additional Titles
Affiliated Faculty, Yale Institute for Global Health
Contact Info
Pediatric Gastroenterology & Hepatology
PO Box 208064
New Haven, CT 06520-8064
United States
About
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Titles
Professor of Pediatrics (Gastroenterology)
Affiliated Faculty, Yale Institute for Global Health
Biography
I am a URM physician-scientist and Professor of Pediatrics (Gastroenterology), Cellular and Molecular Physiology at the Yale University School of Medicine. I have led an NIH-supported laboratory for over 2 decades and trained multiple undergraduate students, post-docs, medical students and research scientists, the majority of whom come from under-represented backgrounds. My research interest is focused on mechanisms responsible for diarrheal diseases. My lab primarily investigates mechanisms regulating the CFTR chloride channel in the intestine and how these are linked to genetic, and non-genetic diarrheal diseases and Cystic Fibrosis (CF). We elucidated trafficking mechanisms regulating CFTR that are implicated in diarrhea that are the basis for successful drug therapies to treat constipation and increase intestinal fluidity (Linaclotide, Lubiprostone). Currently, we investigate kinase signaling mechanisms responsible for regulating CFTR in genetic and non genetic diarrheal diseases and CF affecting newborns and children.
My clinical practice is focused on food and gut health in children to treat and prevent obesity, and chronic lifestyle diseases. We promote the use of healthy food for prevention of intestinal diseases in children, provide nutritional consultation, and design culturally sensitive diets for parents. We provide conventional standard of care along side nutritional promotion as needed, but focus on foods, exercise, stress reduction and lifestyle as a primary modalities for disease treatment and prevention.
Appointments
Pediatric Gastroenterology & Hepatology
ProfessorPrimaryCellular & Molecular Physiology
ProfessorSecondary
Other Departments & Organizations
- Ameen Lab
- Cellular & Molecular Physiology
- Discovery to Cure Internship
- Molecular Medicine, Pharmacology, and Physiology
- Pediatric Colorectal Disorders Program
- Pediatric Gastroenterology & Hepatology
- Pediatric Healthy Gut & Constipation Program
- Pediatrics
- Yale Combined Program in the Biological and Biomedical Sciences (BBS)
- Yale Institute for Global Health
- Yale Ventures
Education & Training
- MBBS
- University of West Indies (1985)
Research
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Overview
Our early studies focused on the identification of trafficking as a major mechanism regulating CFTR in the intestine and its relevance to secretory diarrhea. More recently, we investigated a rare genetic diarrheal disease that affects newborns, Microvillus Inclusion Disease(MVID). We were first to show that MVID results from an apical trafficking defect. Current investigations are elucidating kinase signaling mechanisms regulating ion transport that result in diarrhea in MVID.
Medical Research Interests
ORCID
0000-0002-9619-4932- View Lab Website
Ameen Lab
Research at a Glance
Yale Co-Authors
Publications Timeline
Kaelyn Sumigray, PhD
Zachary Smith, PhD
Marie Egan, MD
Caroline Muiler Barbosa Nogueira
Emanuela Bruscia, PhD
Liza Konnikova, MD, PhD, FAAP
Publications
2026
Tu1286 LONGITUDINAL PROFILING REVEALS COUPLED IMMUNE AND STRUCTURAL DEFECTS IN DEVELOPING CYSTIC FIBROSIS ILEUM
Muiler C, Cao Y, Oez H, Santiago E, Krause W, Garrison A, Egan M, Konnikova L, Ameen N, Bruscia E. Tu1286 LONGITUDINAL PROFILING REVEALS COUPLED IMMUNE AND STRUCTURAL DEFECTS IN DEVELOPING CYSTIC FIBROSIS ILEUM. Gastroenterology 2026, 170: s-2494. DOI: 10.1016/s0016-5085(26)05909-3.Peer-Reviewed Original ResearchTu1286 LONGITUDINAL PROFILING REVEALS COUPLED IMMUNE AND STRUCTURAL DEFECTS IN DEVELOPING CYSTIC FIBROSIS ILEUM
Muiler C, Cao Y, Oez H, Santiago E, Krause W, Garrison A, Egan M, Konnikova L, Ameen N, Bruscia E. Tu1286 LONGITUDINAL PROFILING REVEALS COUPLED IMMUNE AND STRUCTURAL DEFECTS IN DEVELOPING CYSTIC FIBROSIS ILEUM. Gastrointestinal Endoscopy 2026, 103: s-2494. DOI: 10.1016/s0016-5107(26)05840-2.Peer-Reviewed Original ResearchLongitudinal Profiling Reveals Coupled Immune and Structural Defects in Developing Cystic Fibrosis Ileum
Muiler C, Cao Y, Oez H, Santiago E, Krause W, Garrison A, Egan M, Konnikova L, Ameen N, Bruscia E. Longitudinal Profiling Reveals Coupled Immune and Structural Defects in Developing Cystic Fibrosis Ileum. Physiology 2026, 41: 2300642. DOI: 10.1152/physiol.2026.41.s1.2300642.Peer-Reviewed Original ResearchConceptsCF miceGoblet cell hyperplasiaCrypt-villus axisHET miceT cellsCell hyperplasiaCystic fibrosisGoblet cell countLevels of IFN-gCF gutRegulatory T cellsImmune cell profilesCD45+ cellsCD68+ macrophagesSmall intestineMuscle thicknessPopulation of monocytesPro-inflammatory cytokinesImmune deviationNK cellsImmune shiftLymphoid populationsCF intestineImmune imbalanceIL-17ATu1285 CFTR HIGH EXPRESSER BEST4+ CELLS ARE PH-SENSING NEUROPOD CELLS: NEW IMPLICATIONS FOR INTESTINAL PHYSIOLOGY AND CYSTIC FIBROSIS DISEASE
Dos Reis D, Jin J, Santos A, Dastoor P, Muiler C, Zagoren E, Donnelley M, Parsons D, Cmielewski P, Reyne N, McCarron A, Smith Z, Sumigray K, Ameen N. Tu1285 CFTR HIGH EXPRESSER BEST4+ CELLS ARE PH-SENSING NEUROPOD CELLS: NEW IMPLICATIONS FOR INTESTINAL PHYSIOLOGY AND CYSTIC FIBROSIS DISEASE. Gastroenterology 2026, 170: s-2494. DOI: 10.1016/s0016-5085(26)05908-1.Peer-Reviewed Original ResearchTu1285 CFTR HIGH EXPRESSER BEST4+ CELLS ARE PH-SENSING NEUROPOD CELLS: NEW IMPLICATIONS FOR INTESTINAL PHYSIOLOGY AND CYSTIC FIBROSIS DISEASE
Dos Reis D, Jin J, Santos A, Dastoor P, Muiler C, Zagoren E, Donnelley M, Parsons D, Cmielewski P, Reyne N, McCarron A, Smith Z, Sumigray K, Ameen N. Tu1285 CFTR HIGH EXPRESSER BEST4+ CELLS ARE PH-SENSING NEUROPOD CELLS: NEW IMPLICATIONS FOR INTESTINAL PHYSIOLOGY AND CYSTIC FIBROSIS DISEASE. Gastrointestinal Endoscopy 2026, 103: s-2494. DOI: 10.1016/s0016-5107(26)05839-6.Peer-Reviewed Original ResearchCFTR High Expresser BEST4+ cells are pH-sensing neuropod cells: new implications for intestinal physiology and cystic fibrosis disease
dos Reis D, Jin J, Santos A, Dastoor P, Muiler C, Zagoren E, Donnelley M, Parsons D, Cmielewski P, Reyne N, McCarron A, Smith Z, Sumigray K, Ameen N. CFTR High Expresser BEST4+ cells are pH-sensing neuropod cells: new implications for intestinal physiology and cystic fibrosis disease. Physiology 2026, 41: 2300485. DOI: 10.1152/physiol.2026.41.s1.2300485.Peer-Reviewed Original ResearchConceptsCHE cellsGuanylyl cyclase-CNeuropod cellsMeis homeobox 1Proximal small intestineRat jejunumSmall intestineDisease pathogenesisStem cell compartmentApical domainAcid-sensing receptorsWild-type animalsCystic fibrosis diseaseHCO-3 secretionHigh-expressing cellsHuman intestineWild-type counterpartsCFTR proteinCF intestineCF diseaseRat modelRat small intestineGene expression profilesCFTRParacrine hormoneSGK1 signaling: an important modulator of CFTR function and early immune response in mouse intestine
Muiler C, Santos A, Ameen N. SGK1 signaling: an important modulator of CFTR function and early immune response in mouse intestine. AJP Gastrointestinal And Liver Physiology 2026, 330: g487-g494. PMID: 41705904, PMCID: PMC13267886, DOI: 10.1152/ajpgi.00400.2025.Peer-Reviewed Original ResearchConceptsSGK1 signalingImmune engagementDEX treatmentFluid accumulationAcute DEX treatmentIntestinal epithelial transportTreated with dexamethasoneEarly immune responseCFTR functionFunctional CFTRCFTR proteinIntestinal loop assayHeterozygous controlsUssing chambersEpithelial transportImmune responseConditional knockoutCFTRMouse intestineSGK1CKOGlucocorticoidAcute stressFunctional secretionSecretion
2025
CFTR High Expresser BEST4+ cells are pH-sensing neuropod cells: new implications for intestinal physiology and cystic fibrosis disease
Dos Reis D, Jin J, Santos A, Dastoor P, Muiler C, Zagoren E, Donnelley M, Parsons D, Cmielewski P, Reyne N, McCarron A, Smith Z, Sumigray K, Ameen N. CFTR High Expresser BEST4+ cells are pH-sensing neuropod cells: new implications for intestinal physiology and cystic fibrosis disease. American Journal Of Physiology - Cell Physiology 2025, 329: c1411-c1428. PMID: 41005986, DOI: 10.1152/ajpcell.00082.2025.Peer-Reviewed Original ResearchCitationsMeSH Keywords and ConceptsMeSH KeywordsAnimalsCystic FibrosisCystic Fibrosis Transmembrane Conductance RegulatorDuodenumEnterocytesGene Knockout TechniquesGuanylate Cyclase-Activating ProteinsHumansHydrogen-Ion ConcentrationIon ChannelsJejunumMaleMyosin Type INatriuretic PeptidesNeuronsOrganoidsRatsRats, Sprague-DawleyReceptors, EnterotoxinSingle-Cell Gene Expression AnalysisConceptsCHE cellsNeuropod cellsGuanylyl cyclase-CApical domainHigh-expressing cellsProximal small intestineRat jejunumScRNA-seq studiesHuman intestineSingle-cell RNA sequencingCystic fibrosisCF rat modelsSmall intestineSubpopulation of epithelial cellsLuminal pH regulationAcid-sensing receptorsWild-type animalsCystic fibrosis diseaseRNA sequencingProtein immunolocalizationIntestinal physiologyRostrocaudal axisRelevant mRNAsWild-typeRat modelEvidence of secondary Notch signaling within the rat small intestine.
Zagoren E, Dias N, Santos A, Smith Z, Ameen N, Sumigray K. Evidence of secondary Notch signaling within the rat small intestine. Development 2025, 152 PMID: 40371707, PMCID: PMC12188240, DOI: 10.1242/dev.204277.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsSecretory lineageRegulate luminal pHSecretory cellsNotch signalingSecretory cell typesSmall intestinal epithelial cellsRNA sequencing dataIntestinal epithelial cellsIntestinal stem cellsSmall intestineFate in vivoFibrosis pathophysiologyRat small intestineCrypt progenitorsTranscription factorsEpithelial cellsRat jejunumStem cellsPseudotime trajectory analysisRare populationLuminal pHRatsHigher expressionIntestinal functionIn vitro
2024
Localization and function of humanized F508del-CFTR in mouse intestine following activation of serum glucocorticoid kinase 1 and Trikafta
Dastoor P, Muiler C, Garrison A, Egan M, Carlos Dos Reis D, Santos A, Ameen N. Localization and function of humanized F508del-CFTR in mouse intestine following activation of serum glucocorticoid kinase 1 and Trikafta. European Journal Of Pharmacology 2024, 978: 176771. PMID: 38925289, DOI: 10.1016/j.ejphar.2024.176771.Peer-Reviewed Original ResearchCitationsAltmetricConceptsSerum glucocorticoid kinase 1Glucocorticoid kinase 1F508del-CFTRCystic fibrosisMouse modelF508del-CFTR miceCFTR-expressing epithelial cellsCF mouse modelsHumanized mouse modelTreatment of ratsIntestinal diseaseIntestinal segmentsKinase 1CFTR modulatorsCFTR mutationsCF patientsTrikaftaDEX treatmentLung diseaseEfficacy of compoundsDelta F508CFTRCombined treatmentEpithelial cellsLoss of function
Academic Achievements & Community Involvement
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Activities
activity Physiological Reports
10/01/2018 - 11/02/2020Journal ServiceAssociate EditorDetailsAssociate Editor-Gastointestinal Physiology
Honors
honor NASPGHAN Award for Study of Disorders Associated with Carbohydrate Malabsorption
10/07/2020National AwardNorth American Society Pediatric GastroenterologyDetailsUnited States
News & Links
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Media
- We were first to show how apical ion transporters are dysregulated in MVID to account for diarrhea in this disease
- We use human intestinal biopsies to culture organoids, that are used to investigate CFTR and other epithelial transporters
News
Get In Touch
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Contacts
Pediatric Gastroenterology & Hepatology
PO Box 208064
New Haven, CT 06520-8064
United States
Locations
The Anlyan Center
Lab
300 Cedar Street, Ste S-160
New Haven, CT 06519
Appointments
203.737.4876