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Western blot showing increased phosphorylated extracellular signal-regulated kinase (pERK)1/2 protein level in cerebral arteries (middle cerebral arteries (MCAs) + the basilar artery (BA)) at 1 h, 6 h and 24 h after subarachnoid hemorrhage (SAH) + vehicle as compared to sham groups. Treatment with U0126 given at 6 h post-SAH decreased this increase in pERK1/2 at 24 h after SAH. β-Actin was used as a loading control. Data are expressed as mean ± SEM, n = 3. *P <0.05.
