Increased GFAP and vimentin expression 72 hours and 7 days post ischemia.

<p>Increased GFAP and vimentin expression 72 hour and 7 days after transient global ischemia (1 day n = 4, 48h n = 8, 72h n = 4, 7 day n = 8). Arrows highlight GFAP positive staining spanning throughout the retina. Even though there was an increase in vasoconstriction on the ophthalmic artery at 48 hours, it took 72 hours for the retina to show signs of gliosis through Müller cell markers GFAP and vimentin upregulation. Müller cells were still active at 7 days after ischemia.