What best explains peptic ulcers caused by NSAID use?

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Multiple Choice

What best explains peptic ulcers caused by NSAID use?

Explanation:
NSAID-induced ulcers primarily come from loss of mucosal defense due to inhibited prostaglandin synthesis. Prostaglandins in the stomach promote protective mucus and bicarbonate production and help maintain adequate blood flow to the gastric lining. When NSAIDs block cyclooxygenase, these protective prostaglandins drop, weakening the mucosal barrier and making the lining more vulnerable to acid injury and less able to heal. Some NSAIDs can also irritate the mucosa directly, compounding the damage. While Helicobacter pylori infection is a common cause of ulcers in general, the mechanism here centers on diminished mucosal defenses from prostaglandin inhibition, not direct bacterial infection or solely increased acid secretion or decreased motility.

NSAID-induced ulcers primarily come from loss of mucosal defense due to inhibited prostaglandin synthesis. Prostaglandins in the stomach promote protective mucus and bicarbonate production and help maintain adequate blood flow to the gastric lining. When NSAIDs block cyclooxygenase, these protective prostaglandins drop, weakening the mucosal barrier and making the lining more vulnerable to acid injury and less able to heal. Some NSAIDs can also irritate the mucosa directly, compounding the damage. While Helicobacter pylori infection is a common cause of ulcers in general, the mechanism here centers on diminished mucosal defenses from prostaglandin inhibition, not direct bacterial infection or solely increased acid secretion or decreased motility.

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