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N-acetyl endorphin in rat spermatogonia and primary spermatocytes.

Authors
  • M C Cheng
  • J A Clements
  • A I Smith
  • S J Lolait
  • J W Funder
Publication Date
Mar 01, 1985
Source
PMC
Keywords
License
Unknown

Abstract

In previous reports modest levels of beta-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 gamma-endorphin, N-acetyl alpha-endorphin, and N-acetyl beta-endorphin1-27. In addition, N-acetylated endorphins are not found in interstitial cells, but are confined to spermatogonia and primary spermatocytes.

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