Voprosy meditsinskoi khimii (ISSN 0042-8809)

Suppression of replication and activation of DNA reparative synthesis in stress and prevention of these phenomena by preliminary adaptation

   
Meerson F.Z., Iavich M.P., Rozhitskaia I.I., Tverdokhlib V.P.
PubMed Id: 2815680
Year: 1989 vol: 35  issue:4  pages: 48-51
Abstract: Effects of preliminary adaptation to short-term stress or to regular hypoxia on disturbances of DNA biosynthesis were studied in liver and heart tissues under conditions of emotional-painful stress (EPS). EPS was found to induced activation of DNA reparative synthesis in heart and liver tissues and affected dissimilarly DNA replication in these tissues: activation of the reaction in heart and suppression in liver tissue. Adaptation to regular hypoxia limited distinctly the burst of DNA reparative synthesis in cells of both these tissues, reduced activation of the DNA replicative synthesis in heart and prevented the stress induced depression of DNA replication in hepatic cell nuclei and mitochondria. Mechanisms of the hepatoprotective effect of adaptation to hypoxia is discussed.
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Reference: Meerson F.Z., Iavich M.P., Rozhitskaia I.I., Tverdokhlib V.P., Suppression of replication and activation of DNA reparative synthesis in stress and prevention of these phenomena by preliminary adaptation, Voprosy meditsinskoi khimii, 1989, vol: 35(4), 48-51.
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