Heartburn, also know as acid reflux, is a painful and burning sensation in the esophagus, just behind the breastbone usually associated with regurgitation of gastric acid (gastric reflux).
Common conditions such as indigestion and heartburn as well as peptic ulcers, autoimmune gastritis and stomach and esophageal cancers have one thing in common – they involve disruptions of the normal activity of parietal cells (PCs) in the stomach, the only cells in the body that produce acid.
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