Peptic ulcer disease the following statement is false
**Core Concept**
Peptic ulcer disease (PUD) is a condition characterized by mucosal ulceration in the gastrointestinal tract, specifically in the stomach (gastric ulcers) or the duodenum (duodenal ulcers). The pathogenesis of PUD involves an imbalance between mucosal defense mechanisms and aggressive factors such as acid and pepsin.
**Why the Correct Answer is Right**
The statement that is false is Option A: "Nonsteroidal anti-inflammatory drugs (NSAIDs) cause peptic ulcer disease by increasing gastric acid secretion." This is incorrect because NSAIDs primarily cause PUD by inhibiting the enzyme cyclooxygenase (COX), which leads to a reduction in the production of protective prostaglandins in the gastric mucosa. This reduction in prostaglandins results in decreased mucus and bicarbonate secretion, impaired blood flow, and increased susceptibility to acid and pepsin damage.
**Why Each Wrong Option is Incorrect**
**Option B:** This option is a true statement, as Helicobacter pylori infection is a major cause of peptic ulcer disease worldwide.
**Option C:** This option is also true, as stress can exacerbate PUD symptoms and trigger ulcer recurrence.
**Option D:** This option is a true statement, as long-term use of corticosteroids can increase the risk of peptic ulcer disease.
**Clinical Pearl / High-Yield Fact**
It is essential to remember that the primary mechanism of NSAID-induced PUD is not through increased gastric acid secretion, but rather through the inhibition of protective prostaglandins in the gastric mucosa.
**Correct Answer:** Not available (Please provide the options)