GnIH and GnRH expressions in the central nervous system and pituitary of Indian major carp, Labeo rohita during ontogeny: An immunocytochemical study

Saikat Biswas, Arun G. Jadhao*, Claudia Pinelli, Nikhil V. Palande, Kazuyoshi Tsutsui

*この研究の対応する著者

    研究成果: Article査読

    32 被引用数 (Scopus)

    抄録

    Gonadotropin-releasing hormone (GnRH) is the major hypothalamic neuropeptide stimulating gonadotropin secretion in vertebrates. In 2000, gonadotropin-inhibitory hormone (GnIH) was discovered as a hypothalamic neuropeptide that inhibits gonadotropin secretion in birds. Subsequent studies have shown that GnIH is present in the brain of other vertebrates. We show for the first time GnIH immunoreactivity in the central nervous system and pituitary during development of Indian major carp, Labeo rohita and compare it with the localization of GnRH. GnIH and GnRH immunoreactivities were observed from the olfactory system to spinal cord throughout development. In the brain, both neuropeptides were localized in the telencephalon, diencephalon including the preoptic area and rhombencephalon. The localization of GnIH and GnRH in the pituitary suggests that these neuropeptides are involved in the regulation of pituitary hormones by an autocrine manner during development. In addition, the presence of GnIH and GnRH in several other brain regions including the olfactory system suggests their involvement in the regulation of other physiological functions.

    本文言語English
    ページ(範囲)88-92
    ページ数5
    ジャーナルGeneral and Comparative Endocrinology
    220
    DOI
    出版ステータスPublished - 2015 9月 1

    ASJC Scopus subject areas

    • 内分泌学

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