Hypothalamic inhibition of socio-sexual behaviour by increasing neuroestrogen synthesis

Takayoshi Ubuka, Shogo Haraguchi, Yasuko Tobari, Misato Narihiro, Kei Ishikawa, Takanori Hayashi, Nobuhiro Harada, Kazuyoshi Tsutsui

    研究成果: Article

    74 引用 (Scopus)

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    Gonadotropin-inhibitory hormone (GnIH) is a hypothalamic neuropeptide that inhibits gonadotropin secretion and socio-sexual behaviours. Oestrogen (neuroestrogen) synthesized in the brain from androgen by aromatase regulates male socio-sexual behaviours. Here we show that GnIH directly activates aromatase and increases neuroestrogen synthesis in the preoptic area (POA) and inhibits socio-sexual behaviours of male quail. Aromatase activity and neuroestrogen concentration in the POA are low in the morning when the birds are active, but neuroestrogen synthesis gradually increases until the evening when the birds become inactive. Centrally administered GnIH in the morning increases neuroestrogen synthesis in the POA and decreases socio-sexual behaviours. Centrally administered 17β-oestradiol at higher doses also inhibits socio-sexual behaviours in the morning. These results suggest that GnIH inhibits male socio-sexual behaviours by increasing neuroestrogen synthesis beyond its optimum concentration for the expression of socio-sexual behaviours. This is the first demonstration of any hypothalamic neuropeptide that directly regulates neuroestrogen synthesis.

    元の言語English
    記事番号3061
    ジャーナルNature Communications
    5
    DOI
    出版物ステータスPublished - 2014 1 16

    Fingerprint

    Gonadotropins
    Sexual Behavior
    Aromatase
    hormones
    Hormones
    synthesis
    Preoptic Area
    morning
    Birds
    Neuropeptides
    birds
    estrogens
    Androgens
    secretions
    evening
    Quail
    Estradiol
    Brain
    Estrogens
    Demonstrations

    ASJC Scopus subject areas

    • Biochemistry, Genetics and Molecular Biology(all)
    • Chemistry(all)
    • Physics and Astronomy(all)

    これを引用

    Hypothalamic inhibition of socio-sexual behaviour by increasing neuroestrogen synthesis. / Ubuka, Takayoshi; Haraguchi, Shogo; Tobari, Yasuko; Narihiro, Misato; Ishikawa, Kei; Hayashi, Takanori; Harada, Nobuhiro; Tsutsui, Kazuyoshi.

    :: Nature Communications, 巻 5, 3061, 16.01.2014.

    研究成果: Article

    Ubuka, T, Haraguchi, S, Tobari, Y, Narihiro, M, Ishikawa, K, Hayashi, T, Harada, N & Tsutsui, K 2014, 'Hypothalamic inhibition of socio-sexual behaviour by increasing neuroestrogen synthesis', Nature Communications, 巻. 5, 3061. https://doi.org/10.1038/ncomms4061
    Ubuka T, Haraguchi S, Tobari Y, Narihiro M, Ishikawa K, Hayashi T その他. Hypothalamic inhibition of socio-sexual behaviour by increasing neuroestrogen synthesis. Nature Communications. 2014 1 16;5. 3061. https://doi.org/10.1038/ncomms4061
    Ubuka, Takayoshi ; Haraguchi, Shogo ; Tobari, Yasuko ; Narihiro, Misato ; Ishikawa, Kei ; Hayashi, Takanori ; Harada, Nobuhiro ; Tsutsui, Kazuyoshi. / Hypothalamic inhibition of socio-sexual behaviour by increasing neuroestrogen synthesis. :: Nature Communications. 2014 ; 巻 5.
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