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Hormones and Bone Tissue01:17

Hormones and Bone Tissue

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Dirk Vanderschueren1, Jemima Gaytant, Steven Boonen

  • 1Bone Research Unit, Laboratory for Experimental Medicine and Endocrinology, Department of Experimental Medicine, Katholieke Universiteit Leuven, Leuven, Belgium. dirk.vanderschueren@uz.kuleuven.ac.be

Current Opinion in Endocrinology, Diabetes, and Obesity
|April 29, 2008
PubMed
Summary
This summary is machine-generated.

Androgens and estrogens are vital for male bone health, influencing bone formation and resorption. Targeting androgen and estrogen receptors offers potential for treating male osteoporosis and improving skeletal integrity.

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Area of Science:

  • Endocrinology
  • Bone Biology
  • Skeletal Physiology

Background:

  • Androgens and estrogens play crucial roles in skeletal physiology.
  • Conversion of androgens to estrogens is a significant pathway for androgen action in bone.
  • Understanding sex steroid action is key to male skeletal health.

Purpose of the Study:

  • To review recent findings on skeletal androgen action.
  • To discuss the role of estrogen conversion from androgens in male bone.
  • To highlight recent discoveries in skeletal estrogen action relevant to males.

Main Methods:

  • Literature review of recent studies on skeletal androgen and estrogen action.
  • Analysis of findings related to androgen receptor (AR) and estrogen receptor (ER) signaling.
  • Synthesis of information on sex steroid interactions with bone cells and pathways.

Main Results:

  • Androgens and estrogens promote bone formation and inhibit bone resorption.
  • AR and ER signaling are critical for bone formation during male growth.
  • Sex steroid signaling involves genomic/nongenomic pathways and interacts with other anabolic factors.
  • ER alpha in osteoclasts regulates resorption in females, not males; AR signaling in osteoblasts partially regulates resorption in males.

Conclusions:

  • Androgens and estrogens are essential for male bone metabolism and homeostasis.
  • Selective ER alpha and AR signaling are promising therapeutic targets.
  • Targeting these pathways can stimulate bone formation and enhance male skeletal integrity.