What natural substance helps protect the stomach lining from aspirin?
Aspirin (a salicylate) can irritate the stomach lining because it reduces protective stomach chemicals (especially prostaglandins). One natural substance that helps protect the stomach lining is prostaglandins—they support the stomach’s natural defenses by helping maintain the protective mucus-bicarbonate barrier and good blood flow to the stomach wall.
How does aspirin interfere with stomach protection?
Aspirin blocks cyclooxygenase (COX) enzymes, which the body uses to make prostaglandins. When prostaglandins drop, the stomach produces less protective mucus and has less ability to resist acid injury, which increases the risk of gastritis and ulcers.
What are examples of stomach-protective natural defenses besides prostaglandins?
Besides prostaglandins, the stomach’s protection depends on the mucus-bicarbonate layer (which buffers acid at the lining). When prostaglandins are reduced by aspirin, this protective barrier becomes weaker.
If prostaglandins are the protectors, can they be replaced?
In medical practice, some drugs aim to restore protection (for example, misoprostol is a prostaglandin analog), but the natural substance involved in the body’s own defense is still prostaglandins.
Sources
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