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(A–D) Microscopic pictures of immunostained cerebral cortical sections against TNFα of control and treated groups. (A,B) Control group showing mild expression (black arrows) or negative staining (short arrows) in astrocytes. (C,D) Cerebral cortical sections from the TAA administrated group demonstrating strong positive brown astrocytic staining (area of gliosis) (white arrows). X: 400 bar 50 and X: 1000 bar 20.
