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Fluoro-Jade (FJ) staining of a representative coronal brain section showing the medial CA1 area (mCA1) of the hippocampus and the caudate-putamen three days after transient forebrain ischemia. Pre-ischemic treatment with ampicillin (200 mg/kg/day) prevented ischemic neurodegeneration. Scale bar=20 µm (A, B, C, D).
