Endocrinologia Japonica
Online ISSN : 2185-6370
Print ISSN : 0013-7219
ISSN-L : 0013-7219
Absence of Effect of the Peptide PHI-27 on LH Release in vitro
AKIRA MIYAKEKEIICH TASAKASHIROU OHTSUKANOBORU YANAIHARAKIYOSHI NOKIHARATOSHIHIRO AONO
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1984 年 31 巻 6 号 p. 821-824

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The effects of PHI-27, a peptide of the glucagon-secretion family, on luteinizing hormone (LH) release and on LH-releasing hormone (LH-RH)-or estradiol-induced LH release were examined in a sequential double chamber perifusion system by perifusing the pituitary alone or in sequence with the mediobasal hypothalamus (MBH) from normal female rats in diestrus. PHI at 10-7M had no significant effect on LH release from the pituitary in series with the MBH. Moreover, on perifusion of the pituitary alone with medium containing 10-7M PHI, LH release induced by 20ng/ml LH-RH from the pituitary was not significantly different from that without PHI. Furthermore, PHI had no effect on estradiol-induced LH release from the pituitary in sequence with the MBH. These data indicate that PHI has no effect on LH release in vitro.
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© The Japan Endocrine Society
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