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Astrogliosis is not increased in the PAG or RVM 16 weeks after blast-TBI. A, B: Representative images of GFAP in PAG (A) and RVM (B) show comparable labeling in sham (top) and blast-injured rats (bottom). C: Sham and blast-TBI rats have similar amounts of GFAP labeling in PAG. D: GFAP labeling was also similar between groups in RVM.
