Micro & Immunology · single question
Which protein/factor is NOT present in Demineralized Freeze-Dried Bone Allograft (DFDBA)?
Show answer and explanation
Correct answer: D. Interleukin-1 (IL-1)
- A. Incorrect – demineralization exposes osteoinductive BMPs (the rationale for DFDBA).
- B. Incorrect – a growth factor retained in bone matrix.
- C. Incorrect – the demineralized collagen scaffold remains.
- D. Correct – IL-1 is a pro-inflammatory cytokine, not a structural/osteoinductive component of demineralized bone matrix.
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