Growth-promoting and antimetamorphic hormone in pituitary glands of bullfrogs

Sakaé Kikuyama, Kazutoshi Yamamoto, Masako Mayumi

    Research output: Contribution to journalArticle

    20 Citations (Scopus)

    Abstract

    Among the fractions separated from pituitary glands of both larval and adult Rana catesbeiana by disc gel electrophoresis, only a fast moving protein fraction had both a pronounced stimulating effect on the collagen synthesis in the tail fin of bullfrog tadpoles and a suppressive effect on T4-induced resorption of Bufo bufo japonicus tadpole tails in vitro. Pigeon crop-sac test revealed that the fraction had a pronounced prolactin activity. It was demonstrated that this fraction was about four times as potent as bovine prolactin in promoting collagen synthesis in the tadpole tail fin.

    Original languageEnglish
    Pages (from-to)212-216
    Number of pages5
    JournalGeneral and Comparative Endocrinology
    Volume41
    Issue number2
    DOIs
    Publication statusPublished - 1980

    Fingerprint

    Rana catesbeiana
    pituitary gland
    Pituitary Gland
    tadpoles
    Larva
    Tail
    tail
    hormones
    Hormones
    prolactin
    Prolactin
    fins
    collagen
    Collagen
    Growth
    Bufo bufo
    Disc Electrophoresis
    Lithobates catesbeianus
    synthesis
    L-thyroxine

    ASJC Scopus subject areas

    • Endocrinology

    Cite this

    Growth-promoting and antimetamorphic hormone in pituitary glands of bullfrogs. / Kikuyama, Sakaé; Yamamoto, Kazutoshi; Mayumi, Masako.

    In: General and Comparative Endocrinology, Vol. 41, No. 2, 1980, p. 212-216.

    Research output: Contribution to journalArticle

    Kikuyama, Sakaé ; Yamamoto, Kazutoshi ; Mayumi, Masako. / Growth-promoting and antimetamorphic hormone in pituitary glands of bullfrogs. In: General and Comparative Endocrinology. 1980 ; Vol. 41, No. 2. pp. 212-216.
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