Metallothionein-I induction by stress in specific brain areas

Juan Hidalgo, Luis Campmany, Octavi Martí, Antonio Armario

    Research output: Contribution to journalArticleResearchpeer-review

    39 Citations (Scopus)

    Abstract

    The distribution of metallothionein-I (MT) in several areas of the brain and its induction by immobilization stress has been studied in the rat. MT content was highest in hippocampus and midbrain and lowest in frontal cortex and pons plus medulla oblongata. Immobilization stress for 18 hours (which was accompanied by food and water deprivation) significantly increased MT levels in the frontal cortex, pons plus medulla oblongata and hypothalamus, but not in midbrain and hippocampus. The effect of stress on MT levels was specific as food and water deprivation along had no significant effect on MT levels in any of the brain areas studied. The effect of stress on MT levels was independent of changes in cytosolic Zn content; this was generally unaffected by stress or food and water deprivation but decreased in pons plus medulla oblongata from stressed rats. The results suggest that MT is induced more significantly in the brain areas that are usually involved in the response of animals to stress. © 1991 Plenum Publishing Corporation.
    Original languageEnglish
    Pages (from-to)1145-1148
    JournalNeurochemical Research
    Volume16
    DOIs
    Publication statusPublished - 1 Oct 1991

    Keywords

    • Metallothionein
    • brain
    • frontal cortex
    • hippocampus
    • hypothalamus
    • midbrain
    • pons plus medulla oblongata
    • stress
    • zinc

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