Serum 5alpha-dihydrotestosterone and testosterone changes with age in man

Area of Science:

• Endocrinology
• Andrology
• Aging Research

Background:

• Serum testosterone and 5alpha-dihydrotestosterone are key androgens influencing male health.
• Age-related changes in these hormone levels are not fully understood.
• Understanding these hormonal shifts is crucial for addressing age-related male health issues.

Purpose of the Study:

• To investigate the relationship between aging and serum levels of testosterone and 5alpha-dihydrotestosterone in adult men.
• To quantify age-specific changes in these hormone concentrations.

Main Methods:

• Serum samples were collected from 98 healthy adult men aged 20-80 years.
• Testosterone (T) and 5alpha-dihydrotestosterone (DHT) were separated using thin-layer chromatography.
• Hormone levels were quantified using a sensitive radio-immunoassay.

Main Results:

• Serum DHT levels showed a significant decrease in men aged 60-80 compared to younger age groups (20-40 and 40-60).
• Serum testosterone levels exhibited a moderate decline in the 60-80 age group compared to the 20-40 group.
• No significant changes in testosterone were observed between other age group comparisons.

Conclusions:

• Aging is associated with a significant decline in serum 5alpha-dihydrotestosterone levels in men.
• Testosterone levels also show a moderate age-related decrease.
• These findings highlight the impact of aging on androgen status in men.