Periodontics · single question

Which pro-inflammatory cytokine is a key mediator of bone/connective-tissue destruction in periodontitis?

  1. Interleukin-1 beta (IL-1β)
  2. Interleukin-4 (IL-4)
  3. Interleukin-10 (IL-10)
  4. Transforming growth factor-beta only
Show answer and explanation

Correct answer: A. Interleukin-1 beta (IL-1β)

  • A. Correct. IL-1β (along with TNF-α, IL-6, PGE2, MMPs) is a principal driver of the inflammatory tissue and bone destruction in periodontitis.
  • B. IL-4 is an anti-inflammatory/Th2 cytokine.
  • C. IL-10 is anti-inflammatory.
  • D. TGF-β is largely regulatory/anti-inflammatory and not the key destructive mediator.

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