Testosterone bone growth

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Divya Singh 1 , Sabyasachi Sanyal 2 , Naibedya Chattopadhyay 1
1 Division of Endocrinology, 2 Division of Drug Target Discovery and Development, Central Drug Research Institute (Council of Scientific and Industrial Research), Lucknow, Uttar Pradesh, India

Abstract: A high peak bone mass (PBM) at skeletal maturity is a good predictor for lower rate of fracture risks in later life. Growth during puberty contributes significantly to PBM achievement in women and men. The growth hormone (GH)/insulin-like growth factor 1 (IGF-1) axis has a critical role in pubertal bone growth. There is an increase in GH and IGF-1 levels during puberty; thus, it is assumed that sex steroids contribute to higher GH/IGF-1 action during growth. Recent studies indicate that estrogen increases GH secretion in boys and girls, and the major effect of testosterone on GH secretion is via aromatization to estrogen. Estrogen is pivotal for epiphyseal fusion in young men and women. From studies of individuals with a mutated aromatase gene and a case study of male patient with defective estrogen receptor-alpha (ER-α), it is clear that estrogen is indispensable for normal pubertal growth and growth plate fusion. ER-α and estrogen receptor-beta (ER-β) have been localized in growth plate and bone. ER knockout studies have shown that ER-α-/- female mice have reduced linear appendicular growth, while ER-β-/- mice have increased appendicular growth. No such effect is seen in ER-β-/- males; however, repressed growth is seen in ER-α-/- males, resulting in shorter long bones. Thus, ER-β represses longitudinal bone growth in female mice, while it has no function in the regulation of longitudinal bone growth in male mice. These findings indicate that estrogen plays a critical role in skeletal physiology of males as well as females.

Keywords: peak bone mass, puberty, estrogen, growth plate

Other side effects include increased risk of heart problems in older men with poor mobility, according to a 2009 study at Boston Medical Center. A 2017 study published in JAMA found that treatments increase coronary artery plaque volume. Additionally, the Food and Drug Administration (FDA) requires manufactures to include a notice on the labeling that states taking testosterone treatments can lead to possible increased risk of heart attacks and strokes. The FDA recommends that patients using testosterone should seek medical attention right away if they have these symptoms:

Testosterone bone growth

testosterone bone growth

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