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Related Concept Videos

Bone Disorders01:29

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Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
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Bone marrow sFRP5 level is negatively associated with bone formation markers.

H Chen1, Y He2, D Wu3

  • 1Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China. chhong113@126.com.

Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA
|December 18, 2016
PubMed
Summary

Secreted frizzled-related protein 5 (sFRP5) in bone marrow negatively impacts bone formation and bone mass. This study found sFRP5 levels correlate with bone density and formation markers, suggesting its role in osteoporosis.

Keywords:
Bone metabolismBone mineral densityMarrow adipose tissuesFRP5

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Area of Science:

  • Bone Biology
  • Endocrinology
  • Metabolic Diseases

Background:

  • Secreted frizzled-related protein 5 (sFRP5) is implicated in bone metabolism.
  • Its precise role in regulating bone mass and turnover requires further elucidation.

Purpose of the Study:

  • To investigate the relationship between bone marrow sFRP5 levels and the bone turnover state.
  • To explore the correlation between sFRP5 and bone mineral density (BMD) and bone formation/resorption markers.

Main Methods:

  • Prospective data collection and retrospective review from 83 total knee arthroplasty patients.
  • Measurements included lumbar spine and femoral neck BMD, marrow adipose tissue (MAT) sFRP5 mRNA expression, and sFRP5 concentrations in marrow fluid and serum.
  • Assessed bone formation (P1NP, OC, ALP) and resorption (β-CTX) markers.

Main Results:

  • Marrow fluid sFRP5 positively correlated with MAT sFRP5 expression and serum sFRP5.
  • MAT sFRP5 expression positively correlated with BMD and negatively with bone formation markers (P1NP, OC, ALP).
  • sFRP5 levels showed no significant correlation with bone resorption markers.

Conclusions:

  • Bone marrow sFRP5 levels are closely correlated with BMD and bone formation markers.
  • sFRP5 may act as a negative regulator of bone mass by inhibiting bone formation, potentially via paracrine signaling.
  • sFRP5 warrants further investigation as a therapeutic target for anti-osteoporotic agents.