Short-chain fatty acids inhibit the release and content of growth hormone in anterior pituitary cells of the goat

H. Ishiwata, M. Nagano, Y. Sasaki, C. Chen, K. Katoh

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    16 Citations (Scopus)

    Abstract

    The effects of short-chain fatty acids (SCFA: acetate, propionate, and butyrate) on growth hormone (GH)-releasing hormone (GHRH)-induced GH secretion from pituitary somatotrophs were assessed on isolated anterior pituitary cells of goats. Cells were cultured in Dulbecco's modified Eagle's medium for 3 days, either in the presence (1, 3, or 10 mM) or in the absence of each SCFA, and then stimulated with GHRH (10-12 to 10-7 M) for 30 min, again in the presence of and at the concentration of SCFA used over the previous 3 days. In the cells cultured in the absence of SCFA, the addition of SCFA to the medium during the GHRH stimulation period did not significantly change GHRH-induced GH release. However, in cells cultured in the presence of either propionate (3 or 10 mM) or butyrate (1, 3, or 10 mM), the addition of SCFA to the medium during GHRH stimulation significantly reduced the GHRH-induced GH release. The inhibitory effects of SCFA were dependent on the concentrations of SCFA and were greater for butyrate than for propionate. In the cells cultured in the presence of butyrate, but not in the absence, the total GH production (the sum of the released GH and the remaining GH after stimulation) was also significantly reduced. The GHmRNA expression was reduced in the cells cultured with 10 mM butyrate, whereas it was enhanced by the stimulation with 10-7 M GHRH. These findings suggest that propionate and butyrate may inhibit GHRH-induced GH release and GH production by caprine anterior pituitary cells. (C) 2000 Academic Press.

    Original languageEnglish
    Pages (from-to)400-406
    Number of pages7
    JournalGeneral and Comparative Endocrinology
    Volume118
    Issue number3
    DOIs
    Publication statusPublished - 2000 Jun

    Keywords

    • GH content
    • GH release
    • GHRH
    • Pituitary cells
    • SCFA

    ASJC Scopus subject areas

    • Animal Science and Zoology
    • Endocrinology

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