Dietary keto-acid feed-back on pituitary activity in gilthead sea bream: effects of oral doses of AKG. A proteomic approach

Antoni Ibarz, Rita Costa, Adrian Paul Harrison, Deborah M. Power

    13 Citations (Scopus)

    Abstract

    The influence of a daily oral dose of alpha-ketoglutarate (AKG, 0.1 g/kg body weight), an intermediate metabolite in the Krebs cycle and a dietary additive, on the pituitary proteome of gilthead sea bream was determined by two-dimensional electrophoresis (2-DE). A high-resolution map of the sea bream pituitary proteome was generated. Proteins with a modified expression between Controls and AKG treated fish were further analysed by MALDI-TOF/TOF-MS and liquid chromatography combined with a nanoelectrospray (LC-MS/MS). The main changes in the proteome induced by AKG treatment were grouped. Metabolic proteins up-regulated with AKG supplementation included fructose-bis-phosphate aldolase, glyceraldehyde-phosphate dehydrogenase and malate dehydrogenase, all related to glucose metabolism (p
    Original languageEnglish
    JournalGeneral and Comparative Endocrinology
    Volume169
    Issue number3
    Pages (from-to)284-292
    Number of pages9
    ISSN0016-6480
    DOIs
    Publication statusPublished - 2010

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