Altered blood androgens in elderly men with prostate hyperplasia

Area of Science:

• Endocrinology
• Andrology
• Gerontology

Background:

• Testosterone (T) and dihydrotestosterone (DHT) are key androgens influencing prostate health.
• Age-related changes in androgen levels are complex and not fully understood.
• Benign prostatic hyperplasia (BPH) is common in aging men, with potential links to hormonal factors.

Purpose of the Study:

• To investigate plasma levels of testosterone (T) and dihydrotestosterone (DHT) in elderly men with benign prostatic hyperplasia (BPH).
• To compare androgen profiles in older men with BPH to those of younger men.
• To explore potential correlations between altered androgen levels and the development of BPH.

Main Methods:

• Plasma samples were collected from healthy men aged 60-90 with BPH.
• Androgen levels (T and DHT) were quantified using specific radioimmunoassays.
• Chromatographic techniques, including paper and celite column chromatography, were employed for precise measurements.
• Statistical analysis, including the Mann Whitney U test, was used to compare androgen levels between age groups.

Main Results:

• Elderly men (60-90 years) with BPH exhibited significantly reduced plasma testosterone levels compared to younger men.
• Conversely, plasma dihydrotestosterone (DHT) levels were found to be elevated in the elderly BPH group compared to younger men.
• Statistical analysis confirmed significant differences in both T and DHT levels between the age groups (p < 0.001).

Conclusions:

• Plasma DHT levels and the T/DHT ratio are altered in unstressed elderly men with BPH.
• The findings suggest a potential role for altered androgen metabolism in the pathogenesis of BPH.
• Further research is warranted to determine the source of elevated DHT and its causal relationship with prostate hypertrophy in aging men.