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Gastric acid or stomach acid is the acidic component – hydrochloric acid of gastric juice, produced by parietal cells in the gastric glands of the stomach lining. In humans, the pH is between one and three, much lower than most other animals, but is very similar to that of carrion eating carnivores , needing protection from ingesting pathogens .
Medications that may cause or worsen the disease include benzodiazepines, calcium channel blockers, tricyclic antidepressants, NSAIDs, and certain asthma medicines. Acid reflux is due to poor closure of the lower esophageal sphincter, which is at the junction between the stomach and the esophagus.
Heartburn, also known as pyrosis, cardialgia or acid indigestion, [2] is a burning sensation in the central chest or upper central abdomen. [3] [4] [5] Heartburn is usually due to regurgitation of gastric acid (gastric reflux) into the esophagus.
Gastroesophageal reflux disease (return of the stomach’s contents into the esophagus, causing heartburn) Gastroparesis (slow emptying of the stomach) Small bowel intestinal bacterial overgrowth
A lack of hydrochloric acid produced by the stomach is one of the most common age-related causes of a harmed digestive system. [6] Among men and women, 27% experience a varying degree of achlorhydria. US researchers found that over 30% of women and men over the age of 60 have little to no acid secretion in the stomach.
The location of colonization of H. pylori, which affects the location of the ulcer, depends on the acidity of the stomach. [49] In people producing large amounts of acid, H. pylori colonizes near the pyloric antrum (exit to the duodenum) to avoid the acid-secreting parietal cells at the fundus (near the entrance to the stomach). [32]
Human parietal cells (pink staining) – stomach. As a result of the cellular export of hydrogen ions, the gastric lumen is maintained as a highly acidic environment. The acidity aids in digestion of food by promoting the unfolding (or denaturing) of ingested proteins. As proteins unfold, the peptide bonds linking component amino acids are exposed.
Here are some common causes of stomach pain and discomfort — and how to fix them. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...
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