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← Human Body & HealthIf a patient with rheumatoid arthritis has increased levels of TNF-alpha, which consequence follows regarding inflammation?
A)Reduced vascular permeability results
B)Increased NF-kB activation occurs✓
C)Decreased COX-2 enzyme activity
D)Prostaglandin synthesis gets inhibited
💡 Explanation
Increased TNF-alpha in rheumatoid arthritis leads to greater NF-kB activation because TNF-alpha activates its receptor, triggering a signaling cascade that results in NF-kB translocation to the nucleus and subsequent expression of pro-inflammatory genes; therefore, increased NF-kB activity results, rather than decreased activity or direct effects on vascular permeability or prostaglandin synthesis.
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