Figure 7

HIF-1α immunohistochemical staining. Each of the five groups included four animals: A. One week group, occipital cortex and leptomeningeal vessels were HIF-1α (+ + +) (HIF-1α staining , 10 × 10); B. Two weeks group, occipital cortex and soft meningeal blood vessels showed HIF-1α (+) (HIF-1α staining , 10 × 10); C. three weeks group, pial vessels in occipital cortex had HIF-1α (±) (HIF-1α staining , 10 × 10); D. control group, occipital cortex and leptomeningeal vessels were HIF-1α (±) (HIF-1α staining , 10 × 10); E. 90 day group, dura was HIF-1α (±), the number of visible blood vessels increased (HIF-1α staining , 10 × 10).