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  • Title: [Changes in LH, FSH, PRL and estradiol after perfusion with naloxone in normal and amenorrheic women].
    Author: Gandar R, Armani J.
    Journal: J Gynecol Obstet Biol Reprod (Paris); 1984; 13(7):765-9. PubMed ID: 6441816.
    Abstract:
    Naloxone is antagonistic to endogenous opioids. Giving it shows that these opioids act as controlling mechanisms in the secretion of LH and FSH by the hypothalamic, pituitary system and probably of Gn-RH by the hypothalamus. Endogenous opioids and particularly beta endorphin, which is itself under the control of oestradiol, play an inhibitory role on the secretion of Gn-RH and alter the pulsatile mode of Gn-RH secretion. We could not demonstrate PRL action which has been described by other authors.
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