Men, bone and estrogen: unresolved issues

Area of Science:

• Endocrinology
• Bone Physiology
• Men's Health

Background:

• Gonadal function significantly impacts skeletal health in men.
• Hypogonadism, both prepubertal and adult-onset, is linked to impaired bone mass development and accelerated bone loss.
• Traditionally, androgens were considered the primary sex steroids affecting male bone health.

Purpose of the Study:

• To re-evaluate the role of sex steroids in male skeletal health.
• To explore the critical role of estrogen in bone physiology in men.
• To investigate new hypotheses regarding sex steroid action in bone and its implications for metabolic bone disorders.

Main Methods:

• Review of existing evidence on gonadal function and skeletal health in men.
• Analysis of recent findings challenging the traditional view of androgen dominance.
• Examination of emerging research on estrogen's role in male bone metabolism.

Main Results:

• Evidence suggests estrogen plays a critical role in male bone physiology, challenging the traditional androgen-centric model.
• Gonadal failure leads to deficits in both androgen and estrogen action, impacting skeletal health.
• New research avenues are opening regarding sex steroid mechanisms and gender differences in bone.

Conclusions:

• Estrogen's role in male bone health is increasingly recognized, necessitating a revised understanding of gonadal steroid action.
• Further research is needed to elucidate the precise mechanisms of sex steroid action in bone.
• This evolving perspective has significant implications for diagnosing and treating metabolic bone disorders in men.