Dr. John Gregory Fitz MD
Gastroenterologist | Gastroenterology
5323 Harry Hines Blvd Dallas TX, 75390Rating
5/5
About
Dr. John Fitz is a gastroenterologist practicing in Dallas, TX. Dr. Fitz specializes in the digestive system and its diseases that affect the gastrointestinal tract, which include organs from the mouth to the anus as well as liver disorders. Gastroenterology includes conditions such as hepatitis, peptic ulcer disease, colitis, nutritional problems and irritable bowel syndrome. Dr. Fitz performs colonoscopy and endoscopy procedures and provides accurate and thorough care for patients suffering from digestive issues.
Education and Training
Duke University School of Medicine 1979
Board Certification
Internal MedicineAmerican Board of Internal MedicineABIM- Gastroenterology
Provider Details
Expert Publications
Data provided by the National Library of Medicine- Emerging roles of purinergic signaling in gastrointestinal epithelial secretion and hepatobiliary function.
- Reorganization of cholangiocyte membrane domains represents an early event in rat liver ischemia.
- Endogenous ATP release regulates Cl- secretion in cultured human and rat biliary epithelial cells.
- The lipid products of phosphoinositide 3-kinase contribute to regulation of cholangiocyte ATP and chloride transport.
- Evidence for Gd(3+) inhibition of membrane ATP permeability and purinergic signaling.
- Functional interactions between oxidative stress, membrane Na(+) permeability, and cell volume in rat hepatoma cells.
- Domain-specific purinergic signaling in polarized rat cholangiocytes.
- ATP depletion in rat cholangiocytes leads to marked internalization of membrane proteins.
- Evidence for ezrin-radixin-moesin-binding phosphoprotein 50 (EBP50) self-association through PDZ-PDZ interactions.
- Volume-sensitive purinergic signaling in human hepatocytes.
- Modified culture conditions enhance expression of differentiated phenotypic properties of normal rat cholangiocytes.
- Cystic fibrosis transmembrane conductance regulator facilitates ATP release by stimulating a separate ATP release channel for autocrine control of cell volume regulation.
- Ezrin-radixin-moesin-binding phosphoprotein 50 is expressed at the apical membrane of rat liver epithelia.
- ClC-2 chloride channels contribute to HTC cell volume homeostasis.
- Insulin stimulates membrane conductance in a liver cell line: evidence for insertion of ion channels through a phosphoinositide 3-kinase-dependent mechanism.
Dr. John Gregory Fitz MD's Practice location
UT Southwestern Medical Center
5323 Harry Hines Blvd -Dallas, TX 75390Get Direction
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Nearest Hospitals
PARKLAND HEALTH AND HOSPITAL SYSTEMl
5200 HARRY HINES BLVD DALLAS TX 75235UT SOUTHWESTERN UNIVERSITY HOSPITAL-ZALE LIPSHYl
5151 HARRY HINES BLVD DALLAS TX 75390