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The effect of prostaglandin E1 on human bone metabolism: evaluation by biochemical markers for bone turnover

M Takahashi1, H Hoshino, C Ishihara

  • 1Department of Orthopaedic Surgery, Hamamatsu University School of Medicine, Handa, Japan. taka1m@akiha.hama-med.ac.jp

Endocrine Research
|March 11, 2000
PubMed

Insights

Prostaglandin E1 (PGE1) did not stimulate bone formation in humans. Instead, this study found that PGE1 increased bone resorption, indicating a potential catabolic effect on bone metabolism.

Area of Science:

  • Biochemistry
  • Bone Metabolism
  • Pharmacology

Background:

  • Prostaglandins (PGs) exhibit complex effects on bone metabolism.
  • Previous research on prostaglandin E (PGE) in human bone metabolism in vivo is limited.
  • The osteogenic effect of PGE was initially observed in an infant with congenital heart disease.

Purpose of the Study:

  • To investigate the impact of Prostaglandin E1 (PGE1) on human bone metabolism.
  • To utilize biochemical bone markers to assess PGE1's effects.
  • To evaluate PGE1's influence on bone formation and resorption in humans.

Main Methods:

  • 18 subjects received PGE1 in lipid microspheres.
  • Two administration schedules were used: daily for 14 days (6 subjects) and twice weekly for 7 weeks (12 subjects).
  • Blood and urine samples were collected pre- and post-treatment to measure bone formation and resorption markers.

Main Results:

  • Bone formation markers (alkaline phosphatase, osteocalcin, procollagen I carboxy-terminal peptide) remained unchanged.
  • Bone resorption markers, type I collagen pyridinolines crosslinked C-telopeptide (ICTP) and free deoxypyridinoline (Dpd), showed significant increases in specific groups.
  • Overall analysis indicated a trend towards increased bone resorption (ICTP and Dpd), though not statistically significant (p=0.055 for both).

Conclusions:

  • PGE1, at the tested dosages, did not enhance bone formation in humans.
  • The study suggests PGE1 may increase bone resorption in humans.
  • Further research is needed to clarify the precise role of PGE1 in human bone metabolism.

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