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  • Title: [Effect of long-term space flight on polyamine levels in the rat brain].
    Author: Tigranian RA, Kovalev VIu.
    Journal: Kosm Biol Aviakosm Med; 1986; 20(3):53-7. PubMed ID: 3736007.
    Abstract:
    The concentration of polyamines, i.e. putrescine, spermidine and spermine, was measured in different brain compartments of rats flown for 18.5 days on Cosmos-1129. Exposure to space flight led to changes in the polyamine content that were most distinct in medulla oblongata. It is suggested that the changes develop as a result of a chronic stress associated with the effects of weightlessness.
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