Benefits and Risks of Testosterone Treatment in Men with Age-Related Decline in Testosterone.
Level 5 - mechanism / opinion, no new human data
Narrative review of evidence and clinical guidelines without systematic review methodology
PubMed 33217248 · doi:10.1146/annurev-med-050219-034711
What was done
This narrative review synthesized literature on age-related testosterone decline, the benefits and risks of testosterone replacement therapy in older men, and clinical guidelines from the Endocrine Society.
What was found
No quantitative data or effect sizes are reported in the abstract. Qualitatively, testosterone treatment in older men with low levels improves overall sexual activity, sexual desire, and erectile function; enhances areal and volumetric bone density and estimated bone strength in the hip and spine; corrects unexplained anemia of aging; increases skeletal muscle mass, strength, power, self-reported mobility, and select physical function measures; and modestly improves depressive symptoms. Long-term risks for major adverse cardiovascular events and prostate cancer remain undetermined.
Why it matters
This review outlines the multisystem effects of testosterone replacement in aging men, highlighting that therapy should be restricted to symptomatic individuals with consistently low testosterone rather than applied universally to all older men.
Limits
The abstract describes a narrative review without reporting search strategy, inclusion criteria, or pooled sample size. Specific quantitative effect sizes are omitted, and long-term cardiovascular and oncologic safety outcomes remain unmeasured and uncertain.
Cited by
- partial In men, testosterone and growth hormone levels typically peak in their late 20s.