Professional Information

Dr. Eamonn M. M. Quigley, past president of the American College of Gastroenterology and the World Gastroenterology Organization, joined the faculty at Houston Methodist Hospital as head of its Gastroenterology and Hepatology division in 2013.

Prior to his move to Houston, Quigley was professor of medicine and human physiology and a principal investigator at the Alimentary Pharmabiotic Centre at the National University of Ireland in Cork. He is internationally known for his research on gastrointestinal motility disorders, primarily irritable bowel syndrome (IBS); gastroesophageal reflux disease (GERD); neurogastroenterology (the relationship between the central nervous system and the gut); the gut microbiome and probiotics in health and disease. A highlight of his ongoing research includes how bacteria in the digestive tract play a major role in pulling nutrients from food to nourish the body, as well as participating in protecting the body from disease.

IBS is the most common, chronic medical condition in the United States. Approximately 40 percent of those with IBS have symptoms severe or frequent enough to disrupt their daily lives. While the cause of IBS has not been clearly identified, Quigley’s clinical research suggests that an alteration of the normal gut bacteria flora may be a cause. His research team is working toward developing new biomarkers for IBS which would eventually lead to the development of new treatments. Quigley’s clinical interests focus on the use of probiotics for the treatment of IBS.

He has published more than 800 peer-reviewed articles, reviews, editorials, book chapters and case reports, mostly in the areas of gut motility, functional gastrointestinal disorders, and GERD. Quigley has received numerous international honors and awards. He served as Editor-in-Chief of the American Journal of Gastroenterology from 1997 to 2003.

Quigley received his medical degree from  University College Cork in Cork, Ireland; completed internal medicine residency in Glasgow, Scotland; and did GI fellowship training at the Mayo Clinic and the University of Manchester in England.  He served as the Chief of Gastroenterology at the University of Nebraska from 1991 to 1998 and as Dean of the Medical School in Cork, Ireland from 2000 to 2007.

Research interests

Some of his pioneering research over the past several decades has included how the function of the gut is affected in a variety of diseases and conditions, including chronic liver disease, high-dose chemoradiotherapy, intestinal failure and transplantation, and Parkinson’s disease.


    Free-text keywords

  • Gastroesophageal Reflux, Esophageal disorders/dysphagia, Gastrointestinal motility disorders, Functional GI disorders, Irritable bowel syndrome, Gastroparesis, Constipation, Diarrheal disorders, Celiac disease, Intestinal & colonic disorders, Inflammatory bowel disease/colitis/Crohn's disease, General gastroenterology, EGD and colonoscopy, Capsule endoscopy

    Research Area Keywords

  • Digestive Disorders
  • Molecular Medicine


Irritable Bowel Syndrome
Concept: Irritable Bowel Syndrome
Weight: 100%
Domain: Medicine & Life Sciences
Concept: Probiotics
Weight: 45%
Domain: Medicine & Life Sciences
Concept: Microbiota
Weight: 32%
Domain: Medicine & Life Sciences
Concept: Constipation
Weight: 26%
Domain: Medicine & Life Sciences
Gastrointestinal Diseases
Concept: Gastrointestinal Diseases
Weight: 25%
Domain: Medicine & Life Sciences
Gastrointestinal Motility
Concept: Gastrointestinal Motility
Weight: 20%
Domain: Medicine & Life Sciences
Gastroesophageal Reflux
Concept: Gastroesophageal Reflux
Weight: 19%
Domain: Medicine & Life Sciences
Concept: Gastroenterology
Weight: 16%
Domain: Medicine & Life Sciences
Concept: Therapeutics
Weight: 14%
Domain: Medicine & Life Sciences
Concept: Gastroparesis
Weight: 14%
Domain: Medicine & Life Sciences
Research OutputsResearch Output authored by Eamonn Martin Quigley is tagged with the concept


American Journal of Gastroenterology

ISSNs: 0002-9270

Additional searchable ISSN (Electronic): 1572-0241

Nature Publishing Group




ISSNs: 0016-5085

W.B. Saunders Ltd



Alimentary Pharmacology and Therapeutics

ISSNs: 0269-2813

Additional searchable ISSN (Electronic): 1365-2036




Journal of clinical gastroenterology

ISSNs: 0192-0790

Additional searchable ISSN (Electronic): 1539-2031

Lippincott Williams and Wilkins



Digestive Diseases and Sciences

ISSNs: 0163-2116, 0002-9211

Additional searchable ISSN (Electronic): 1573-2568

Plenum Publishers


has published Research OutputsResearch Output by Eamonn Martin Quigley

Research Network

Visualization: Institutional Network

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Eamonn Martin Quigley

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Eamonn Martin Quigley

Shared Pub. Internal Organizations

Research Institute

Organizational unit: Institutes


J.C. Walter Jr. Transplant Center

Organizational unit: Centers of Excellence


Immunobiology & Transplant Science Center

Organizational unit: Programs


Department of Nanomedicine

Organizational unit: Departments

has Research OutputsResearch Output by Eamonn Martin Quigley

Shared Pub. External Organizations

Univ. of Nebraska Medical Center

External organization: Unknown


Biosciences Institute

External organization: Unknown


National University of Ireland

External organization: Unknown


Cork University Hospital

External organization: Unknown


Mayo Clinic

External organization: Unknown

has Research OutputsResearch Output by Eamonn Martin Quigley

Shared Pub. Internal co-authors

has co-authored Research OutputsResearch Output with Eamonn Martin Quigley

Shared Pub. External co-authors

Fergus Shanahan

External person


Timothy G. Dinan

External person


Jon S. Thompson

External person


John Cryan

External person


P. Moayyedi

External person

has co-authored Research OutputsResearch Output with Eamonn Martin Quigley

ID: 2278132