Abstract: Phosphocreatine, ATP, and glucose were severely depleted, and the lactate levels were increased in the paramedian neocortex, dorsal‐lateral striatum, and CA1 zone of hippocampus of rats exposed to 30 min of forebrain ischemia. Upon recirculation of the brain, phosphocreatine, ATP, and lactate concentrations recovered to control values in the paramedian neocortex and CA1 zone of hippocampus and to near‐control values in the striatum. The phosphocreatine and ATP concentrations then fell and the lactate levels rose in the striatum after 6–24 h, and in the CA1 zone of hippocampus after 24–72 h. The initial recovery and subsequent delayed changes in the phosphocreatine, ATP, and lactate concentrations in the striatum and hippocampus coincided with the onset and progression of morphological injury in these brain regions. The results suggest that cells in these regions regain normal or near‐normal mitochondrial function and are viable, in terms of energy production, for many hours before unknown mechanisms cause irreversible neuronal injury.
Journal of Neurochemistry – Wiley
Published: May 1, 1983
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