Prostaglandins

COX-1, COX-2 and the four receptors for PGE2 in bone and cartilage, the prostaglandin mechanical loading releases, and what NSAIDs do to bone healing.

IGF-1 raises COX-2, which makes PGE2. PGE2 acts on EP1 and growth plate cells divide; NSAIDs block COX-2, and young mice given them came out small. NSAIDsyoung mice came out smallIGF-1COX-2PGE2EP1COX-2PGE2 on EP1Cells dividethe induced enzymenot EP2 or EP4DNA synthesis up

Cells of both the bone-forming and the bone-resorbing lineage produce PGE2 in quantity, COX-2 accounts for most of what bone makes, and it is degraded quickly once released.

In this article

  • What loading releases
  • COX-2 in repair and in the plate
  • People carrying too much PGE2
  • What NSAIDs have been measured to do
  • Compounds

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Educational content, not medical advice. Nothing here is a recommendation to take or stop taking anything — talk to a doctor about your own situation.