-
Review
The Physiology and Pathophysiology of Pancreatic Ductal Secretion: The Background for Clinicians.
- Petra Pallagi, Péter Hegyi, and Zoltán Rakonczay.
- From the *First Department of Medicine, University of Szeged; and †Hungarian Academy of Sciences-University of Szeged Translational Gastroenterology Research Group, Szeged, Hungary.
- Pancreas. 2015 Nov 1; 44 (8): 1211-33.
AbstractThe human exocrine pancreas consists of 2 main cell types: acinar and ductal cells. These exocrine cells interact closely to contribute to the secretion of pancreatic juice. The most important ion in terms of the pancreatic ductal secretion is HCO3. In fact, duct cells produce an alkaline fluid that may contain up to 140 mM NaHCO3, which is essential for normal digestion. This article provides an overview of the basics of pancreatic ductal physiology and pathophysiology. In the first part of the article, we discuss the ductal electrolyte and fluid transporters and their regulation. The central role of cystic fibrosis transmembrane conductance regulator (CFTR) is highlighted, which is much more than just a Cl channel. We also review the role of pancreatic ducts in severe debilitating diseases such as cystic fibrosis (caused by various genetic defects of cftr), pancreatitis, and diabetes mellitus. Stimulation of ductal secretion in cystic fibrosis and pancreatitis may have beneficial effects in their treatment.
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