Testosterone, aging and survival: biomarker or deficiency

Area of Science:

• Endocrinology
• Geriatrics
• Cardiovascular Medicine

Background:

• Testosterone prescriptions have significantly increased.
• Previous studies suggested low testosterone is linked to higher mortality and cardiovascular events.
• Recent research indicates potential adverse cardiovascular outcomes with testosterone treatment.

Purpose of the Study:

• To review recent studies on the association between endogenous/exogenous testosterone and mortality in older men.
• To evaluate the risks and benefits of testosterone therapy in the context of cardiovascular health.

Main Methods:

• Systematic review of recent scientific literature.
• Analysis of observational studies and clinical trials on testosterone and mortality.
• Meta-analysis of cardiovascular events in testosterone-treated men.

Main Results:

• Low serum testosterone is associated with increased mortality in observational studies.
• Recent trials and meta-analyses suggest testosterone treatment may increase cardiovascular events.
• Large observational studies link testosterone treatment to a higher risk of adverse cardiovascular events.

Conclusions:

• The association between low testosterone and mortality may not be causal, with low testosterone potentially being a marker of poor health.
• Given recent findings of adverse outcomes, testosterone therapy should be used cautiously in men with cardiovascular disease.
• A conservative approach to testosterone replacement therapy is recommended for older men, especially those with existing cardiovascular conditions.