Beta-endorphin is an endogenous opioid peptide, primarily synthetised by the hypothalamus and pituitary, innvolved in the regulation of reproductive activity, mainly inhibiting LH release. To investigate the relationship between beta-endorphin and reproductive function in bulls, blood and seminal plasma were collected from 20 animals, aged 10-18 months. A wide range of beta-endorphin concentration was detected in blood and seminal plasma. A strong immunostaining for beta-endorphin was found in glandular epithelium of the prostate and vesicular glands. A weak positive signal was also observed in the epithelium of the epididymid, ductus deferens ans ampulla.
Immunoreactive beta-endorphin in the genital tract and seminal plasma of the bull
ZANGHI', Antonina;MARINO, Gabriele;BONTEMPO, Rosa Angela;QUARTUCCIO, Marco;CRISTARELLA, Santo
2004-01-01
Abstract
Beta-endorphin is an endogenous opioid peptide, primarily synthetised by the hypothalamus and pituitary, innvolved in the regulation of reproductive activity, mainly inhibiting LH release. To investigate the relationship between beta-endorphin and reproductive function in bulls, blood and seminal plasma were collected from 20 animals, aged 10-18 months. A wide range of beta-endorphin concentration was detected in blood and seminal plasma. A strong immunostaining for beta-endorphin was found in glandular epithelium of the prostate and vesicular glands. A weak positive signal was also observed in the epithelium of the epididymid, ductus deferens ans ampulla.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
