Effects of Androgen on Extracellular Vesicles from Endothelial Cells in Rat Penile Corpus Cavernosum
January 2021
in “
Andrology
”
TLDR Low androgen levels reduce nitric oxide production in rat penile cells.
The study explored the impact of dihydrotestosterone (DHT) on extracellular vesicles (EVs) from endothelial cells in the rat penile corpus cavernosum, involving five male Sprague Dawley rats. It found that higher DHT levels were associated with increased EV content and protein expression, such as CD9, CD63, TSG101, and eNOS, which are crucial for erectile function. Low DHT levels inhibited the release of eNOS-expressing EVs and reduced nitric oxide (NO) production, potentially contributing to erectile dysfunction (ED) by decreasing NO in penile tissue. The research suggested that EVs might influence erectile function by inhibiting apoptosis in endothelial and smooth muscle cells, and recommended further studies to explore EVs' potential in improving erectile function in ED patients with low androgen levels.