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Regional incorporation of L-[3-H]tyrosine into cat brain proteins after 1 hour of complete ischemia

Acta Neuropathologica, ISSN: 0001-6322, Vol: 25, Issue: 4, Page: 313-324
1973
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The incorporation of l-[3-H]tyrosine into cat brain proteins was investigated after 1 h of complete ischemia and 7 h of recirculation. Autoradiographs from the cerebral hemispheres, the brain stem and cerebellum revealed that the vast majority of neuronal and glial cells had resumed protein synthesis. Focal reduction of amino acid incorporation was restricted to a few cortical areas within the cerebral hemispheres. A significant number of neurons with no detectable [H]tyrosine incorporation was only found in the dentate gyrus. The postischemic recovery of protein synthesis supports electrophysiological findings which indicate that nerve cells may survive extended periods of ischemia if the cerebral circulation can be adequately restored. © 1973 Springer-Verlag.

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