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Vascular dementia produced by permanent ligation of bilateral common carotid arteries involves progressive deterioration of intellectual and cognitive function in rats, which are closely associated with the hippocampus. This study used immunohistochemical analysis to detect the expression of glial fibrillary acidic protein and nestin in the hippocampus in a vascular dementia model. The results revealed that both glial fibrillary acidic protein and nestin expression were increased 1 day after permanent ligation of the bilateral common carotid arteries, compared with a sham-operated group. The expression of glial fibrillary acidic protein peaked at 7 days post-surgery. The expression of nestin was a little weaker than that of glial fibrillary acidic protein, and peaked at 14 days (P