AQP4 and Cerebral ischemia: The objective of this study was to investigate the specific mechanism of inflammation and apoptosis following cerebral ischemia–reperfusion (I/R) injury using the AQP4-specific inhibitor, N-(1,3,4-thiadiazol-2-yl) pyridine-3-carboxamide dihydrochloride (TGN-020).