Aging exerts profound effects on the hypothalamic-pituitary-gonadal axis and Leydig cells, precipitating testosterone reduction, and while exogenous testosterone supplementation can partially ameliorate age-related testosterone deficiency, its long-term safety remains contentious and preserving endogenous testosterone production warrants further investigation.
Key Findings
Background
Contemporary societies exhibit delayed reproductive age and increased life expectancy, which amplifies the clinical significance of age-related testosterone decline in males.
The male reproductive system demonstrates relatively delayed aging compared to that of females.
Increasing age substantially impacts male reproductive system function.
A characteristic manifestation of male reproductive aging is age-induced testosterone decline.
Background
Testosterone plays pivotal roles beyond reproduction, contributing significantly to metabolism, psychology, and cardiovascular health.
Testosterone is described as a crucial male sex hormone.
Its roles include spermatogenesis and sexual function.
Additional contributions span metabolic, psychological, and cardiovascular health domains.
Background
Aging exerts profound effects on the hypothalamic-pituitary-gonadal (HPG) axis and Leydig cells, precipitating testosterone reduction.
Both the HPG axis and Leydig cells are identified as primary targets of age-related decline.
The resulting testosterone reduction adversely affects male health.
The paper reviews mechanisms by which aging disrupts these endocrine structures.
Background
Exogenous testosterone supplementation can partially ameliorate age-related testosterone deficiency, but its long-term safety remains contentious.
Exogenous testosterone supplementation is acknowledged as a current intervention strategy.
The paper characterizes its efficacy as only partial amelioration of deficiency.
Long-term safety of exogenous testosterone supplementation is explicitly described as 'contentious.'
Conclusions
Preserving endogenous testosterone production capacity during aging is identified as a potential intervention strategy warranting further investigation.
This is contrasted with exogenous supplementation as an alternative approach.
The authors frame endogenous preservation as an area requiring more research.
This approach is presented as potentially addressing the safety concerns associated with exogenous supplementation.
Cheng H, Zhang X, Li Y, Cao D, Luo C, Zhang Q, et al.. (2024). Age-related testosterone decline: mechanisms and intervention strategies.. Reproductive biology and endocrinology : RB&E. https://doi.org/10.1186/s12958-024-01316-5