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Human Body & Health

If a researcher introduces a novel compound that completely inhibits phospholipase A2 (PLA2) activity in macrophages stimulated with lipopolysaccharide (LPS), which consequence follows regarding the inflammatory response?

A)Increased leukotriene production exacerbates inflammation
B)NF-κB activation accelerates cytokine gene transcription
C)Enhanced cyclooxygenase activity produces more thromboxane
D)Prostaglandin synthesis decreases attenuating inflammation

💡 Explanation

Inhibiting PLA2 prevents the release of arachidonic acid, the precursor to prostaglandins, because PLA2 catalyzes its release from membrane phospholipids. Therefore, prostaglandin synthesis decreases, attenuating inflammation, rather than increasing leukotriene production or thromboxane synthesis, which depend on different pathways.

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