Aspirin-sensitive asthma is associated with:
## **Core Concept**
Aspirin-sensitive asthma, also known as aspirin-exacerbated respiratory disease (AERD), is a condition where patients with asthma experience worsening symptoms after ingesting aspirin or other nonsteroidal anti-inflammatory drugs (NSAIDs). This condition is closely linked to abnormalities in arachidonic acid metabolism.
## **Why the Correct Answer is Right**
The correct answer, , is associated with aspirin-sensitive asthma because AERD involves an imbalance in the metabolism of arachidonic acid. Normally, arachidonic acid is metabolized into prostaglandins and thromboxanes by **cyclooxygenase (COX) enzymes**. In AERD, the inhibition of COX-1 by aspirin and other NSAIDs leads to a shunting of arachidonic acid towards the production of **leukotrienes** via the **5-lipoxygenase pathway**. Leukotrienes are potent bronchoconstrictors and pro-inflammatory mediators, which exacerbate asthma symptoms.
## **Why Each Wrong Option is Incorrect**
- **Option A:** - This option is incorrect because while are involved in the broader context of asthma pathophysiology, they are not specifically implicated in the mechanism of aspirin-sensitive asthma.
- **Option B:** - This option is incorrect as are not directly related to the specific mechanism of AERD.
- **Option C:** - This option is incorrect because, although are relevant in asthma, they are not the key players in AERD.
## **Clinical Pearl / High-Yield Fact**
A key clinical pearl is that patients with AERD often have a triad of asthma, chronic rhinosinusitis with nasal polyps, and sensitivity to aspirin and other NSAIDs. A memorable point for exams is that the condition is associated with **leukotriene overproduction** and that **avoiding NSAIDs** is crucial in management.
## **Correct Answer:** .