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
Caroline Muiler Barbosa Nogueira
Zachary Smith, PhD
Amos Brooks, HT (ASCP)
Andrea Barbieri, MD
John Geibel, DSc, MD, AGAF, MS, FRS
Publications
2026
SGK1 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, 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
2023
CFTR High Expresser Cells in cystic fibrosis and intestinal diseases
dos Reis D, Dastoor P, Santos A, Sumigray K, Ameen N. CFTR High Expresser Cells in cystic fibrosis and intestinal diseases. Heliyon 2023, 9: e14568. PMID: 36967909, PMCID: PMC10031467, DOI: 10.1016/j.heliyon.2023.e14568.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsCitationsConceptsCystic fibrosisIntestinal diseaseCystic fibrosis transmembrane conductance regulatorQuality of lifeIntestinal dysfunctionGastrointestinal diseasesIntestinal physiologyFibrosisDiseasePathophysiologyFibrosis transmembrane conductance regulatorTransmembrane conductance regulatorCFTR leadConductance regulator
2022
Loss of Serum Glucocorticoid-Inducible Kinase 1 SGK1 Worsens Malabsorption and Diarrhea in Microvillus Inclusion Disease (MVID)
Ahsan K, dos Reis DC, Barbieri A, Sumigray KD, Nottoli T, Salas PJ, Ameen NA. Loss of Serum Glucocorticoid-Inducible Kinase 1 SGK1 Worsens Malabsorption and Diarrhea in Microvillus Inclusion Disease (MVID). Journal Of Clinical Medicine 2022, 11: 4179. PMID: 35887942, PMCID: PMC9319011, DOI: 10.3390/jcm11144179.Peer-Reviewed Original ResearchCitationsAltmetricConceptsMicrovillus inclusion diseaseSevere diarrheaInclusion diseaseFluid secretionCystic fibrosis transmembrane conductance regulatorDouble knockout miceMicrovillus inclusionsGlucocorticoid-inducible kinase 1Carbohydrate malabsorptionKnockout miceIntestinal carbohydrateDiarrheaDiarrheal diseaseMalabsorptionMiceVillus enterocytesDiseaseLoss of MYO5BFunction mutationsApical cystic fibrosis transmembrane conductance regulatorFibrosis transmembrane conductance regulatorKinase 1SecretionIntestineTransmembrane conductance regulator
2021
Intestinal TMEM16A control luminal chloride secretion in a NHERF1 dependent manner
Saha T, Aoun J, Hayashi M, Ali I, Sarkar P, Bag PK, Leblanc N, Ameen N, Woodward OM, Hoque KM. Intestinal TMEM16A control luminal chloride secretion in a NHERF1 dependent manner. Biochemistry And Biophysics Reports 2021, 25: 100912. PMID: 33537462, PMCID: PMC7838733, DOI: 10.1016/j.bbrep.2021.100912.Peer-Reviewed Original ResearchCitationsAltmetricConcepts
2020
Secretory Diarrhea
Ameen N, Kopic S, Ahsan K, Figueroa-Hall L. Secretory Diarrhea. Physiology In Health And Disease 2020, 41-76. DOI: 10.1007/978-3-030-55310-4_2.ChaptersConcepts
2017
Linaclotide activates guanylate cyclase‐C/cGMP/protein kinase‐II‐dependent trafficking of CFTR in the intestine
Ahsan K, Tchernychev B, Kessler MM, Solinga RM, Arthur D, Linde CI, Silos‐Santiago I, Hannig G, Ameen NA. Linaclotide activates guanylate cyclase‐C/cGMP/protein kinase‐II‐dependent trafficking of CFTR in the intestine. Physiological Reports 2017, 5: e13299. PMID: 28592587, PMCID: PMC5471438, DOI: 10.14814/phy2.13299.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsMeSH KeywordsAnimalsCell LineCell Line, TumorCell MembraneCyclic AMP-Dependent Protein KinasesCyclic GMPCyclic GMP-Dependent Protein Kinase Type IICystic Fibrosis Transmembrane Conductance RegulatorGuanylyl Cyclase C AgonistsHumansIntestinal MucosaMalePeptidesProtein TransportRatsRats, Sprague-DawleyReceptors, Guanylate Cyclase-CoupledSignal TransductionConceptsRat intestinal loopsLinaclotide treatmentFluid secretionIntestinal loopsCystic fibrosis transmembrane conductance regulatorCell surfaceFibrosis transmembrane conductance regulatorCell surface traffickingChronic idiopathic constipationIrritable bowel syndromeTransmembrane conductance regulatorIntestinal fluid secretionCell surface translocationReceptor guanylyl cyclaseHuman intestinal tissueCaco-2BBe cellsCFTR traffickingCFTR pathwaySubapical compartmentCellular signalingCGMP/PKGProtein kinaseSurface biotinylationIdiopathic constipationPathway componentsAP2 α modulates cystic fibrosis transmembrane conductance regulator function in the human intestine
Kumari V, Desai S, Ameen NA. AP2 α modulates cystic fibrosis transmembrane conductance regulator function in the human intestine. Journal Of Cystic Fibrosis 2017, 16: 327-334. PMID: 28438500, PMCID: PMC5502754, DOI: 10.1016/j.jcf.2017.03.012.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and Concepts
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
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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