Genes involved in the pathophysiology of perinatal asphyxia

  • Labudova O
  • Schuller E
  • Yeghiazarjan K
 et al. 
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Mechanisms in the pathogenesis of perinatal asphyxia (PA) at the gene level are only beginning to be elucidated, although gene hunting using differential display has revealed differences in gene expression between hypoxic and normoxic cells in vitro. As no information on gene expression was available from n vivo studies, we decided to use a non-invasive and clinically relevant animal model of PA for mRNA hunting applying the subtractive hybridization method, mRNAs from normoxic rat brain and brain of rat pups with 20 min of asphyxia were isolated and compared by this technique. The resulting subtracted mRNAs were converted to cDNA, sequenced and identified by gene bank data. A series of transcripts representing transcription factors, transporters, metabolic factors, were found to be up- or downregulated providing insight into mechanisms of PA, and on the other hand, genes with unknown functions could be given a preliminary role i.e. in PA. Results obtained with this powerful tool are now challenging quantitative determination of these genes and gene products at the protein and activity level to confirm their role in PA.

Author-supplied keywords

  • Hypoxia
  • MRNA-hunting
  • Perinatal asphyxia
  • Rat
  • Subtractive hybridization

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  • Olga Labudova

  • Elisabeth Schuller

  • Kristina Yeghiazarjan

  • Erwin Kitzmueller

  • Harald Hoeger

  • Gert Lubec

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