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Immunohistochemical analysis of: (A) SHH protein in PG tissue from sham and CN crushed rats, four days after CN crush (100× magnification), (B) SHH protein in PG tissue 4 days after CN crush (400× magnification), (C) PTCH1 protein in PG tissue 4 days after CN crush (100×–400×), and (D) SMO protein in PG (left) and CN (right) tissues 4 days after CN crush (200–400× magnification). Arrows indicate staining. g=glial cells. V=vacuole.
