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[Osteocalcin and smoking]

M Laroche1, Y Lasne, A Felez

  • 1Service de Rhumatologie, CHU Rangueil Toulouse.

Revue Du Rhumatisme (Ed. Francaise : 1993)
|June 1, 1994
PubMed
Summary
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Smoking lowers osteocalcin levels, indicating reduced bone formation. This study found significantly lower serum osteocalcin in smokers compared to nonsmokers, suggesting smoking depresses osteoblast activity.

Area of Science:

  • Bone biology and metabolic diseases.
  • Endocrinology and toxicology.

Context:

  • Osteoporosis is a significant public health concern.
  • Tobacco smoking is a known risk factor for osteoporosis.
  • Previous research indicates tobacco smoke components impair osteoblast function in vitro and in animal models.

Purpose:

  • To investigate the association between smoking and osteoblast activity in humans.
  • To measure serum osteocalcin levels in smokers and matched nonsmokers.

Summary:

  • Serum osteocalcin levels were measured in 24 smokers and 24 nonsmokers.
  • Overall, smokers exhibited significantly lower osteocalcin levels (15 ± 6.95 ng/ml) compared to nonsmokers (21.27 ± 8.34 ng/ml) (p = 0.007).
  • This difference was significant in males but not in females, suggesting smoking may directly or indirectly impact osteoblast function.

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Impact:

  • Provides human evidence linking smoking to reduced osteoblast activity.
  • Highlights potential mechanisms involving hormonal changes.
  • Informs public health strategies regarding smoking cessation for bone health.