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3-Nitropropionic acid (3-NPA), an irreversible inhibitor of succinate dehydrogenase, was administered to rats and the characteristics of the neuronal damage were investigated. Injections of 3-NPA (15 mg/kg s.c.) every 2 or 3 days for 1-2 weeks induced a mild neuronal loss and neutrophil invasions in the striatum (STR). The same administration for 4 weeks induced specific symmetric lesions in the...
Transient forebrain ischemia in rodents caused internucleosomal DNA fragmentation that appeared in the striatum 24 h after reperfusion, and in the hippocampus 72 h after reperfusion. Gel electrophoresis and an in situ technique to label 3 termini of endonuclease generated DNA fragments demonstrated similar temporal patterns. These data show that endonuclease activation accompanies the demise of...
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