The effect of seminal plasma on gonadotrophin secretion by sheep pituitary cells in culture.
We tested the effect of seminal plasma fractions of pooled normozoospermic and azoospermic seminal plasma on secretion of LH by sheep pituitary cells in culture. From these experiments we conclude that there is activity in seminal plasma (molecular mass 10.000-80.000) which inhibits LH secretion. This activity is not steroid-mediated and is absent in azoospermic seminal plasma. These data support our thesis that LH secretion is not only controlled by testosterone but also by spermatogenesis per se.
D000818:Animals; D002478:Cells, Cultured; D006801:Humans; D007986:Luteinizing Hormone / Q000378:metabolism*; D008297:Male; D009845:Oligospermia / Q000378:metabolism; D010902:Pituitary Gland / Q000187:drug effects / Q000378:metabolism*; D012661:Semen / Q000378:metabolism*; D012756:Sheep; D013739:Testosterone / Q000494:pharmacology
D013739:Testosterone; D007986:Luteinizing Hormone