Fig. 3.
Double immunolabeling electron microscopy with antibodies against Kir4.1 (5 nm gold) and α1-syntrophin (10 nm gold). Higher power view (a) of the area of (b) indicated by arrow. Astroglial endfeet membrane (arrowhead) is seen on the opposite side of the capillary basal lamina (BL). Along this domain of astroglial membrane are 5 nm (small arrows) and 10 nm (large arrows) gold signals which are closely associated. EC, endothelial cell; RBC, red blood cell. Bar=0.1 µm. a: 160,000×; b: 40,000×.