In previous reports modest levels of β-endorphin have been found by radioimmunoassay in rat testis, and localized by immunofluorescence to the interstitial cells. We have confirmed these previous reports and extended them by showing that the majority of testicular endorphins are acetylated forms, N-acetyl γ-endorphin, N-acetyl α-endorphin, and N-acetyl β-endorphin1-27. In addition, N-acetylated endorphins are not found in interstitial cells, but are confined to spermatogonia and primary spermatocytes.
|Number of pages||4|
|Journal||The Journal of Clinical Investigation|
|Publication status||Published - 1 Jan 1985|