Ann Ouyang

Ann Ouyang is a Professor and Vice Chair of Faculty Promotion and Mentoring in the Department of Medicine, with a leadership role as Director of Motility in the Division of Gastroenterology and Hepatology. Her expertise bridges clinical practice and research in gastrointestinal motility and functional disorders.

• Education: Gastroenterology Fellowship at Hospital of the University of Pennsylvania (1978–1980).
• Education: Internal Medicine Residency at Pennsylvania Hospital (1975–1978).

Her research focuses on functional bowel disorders, intestinal motility, and brain-gut axis interactions, supported by NIH and AGA grants. Recent work explores genetic influences on visceral pain (SCN10A polymorphism), neural mechanisms (Na_V1.8 sodium channels), and rheumatological conditions affecting gut function (e.g., scleroderma, Ehlers-Danlos syndrome).

Ann’s publications reveal a thematic emphasis on visceral pain mechanisms, molecular pharmacology, and interdisciplinary medical education. Her clinical studies leverage high-resolution manometric data to improve diagnosis of esophageal disorders.

Key funded projects include NIH/NCRR grants on anorectal function, Irritable Bowel Syndrome (IBS), and gestational diabetes in polycystic ovary syndrome (PCOS) patients. She also received HRSA support in 2004.