Figure 1. Expression of aquaporin 1, aquaporin 4, and glial fibrillary acidic protein in normal mouse retina. Normal mouse retina was submitted to hematoxylin and eosin staining (A), or immunofluorescent staining for aquaporin 1 (AQP1; B), aquaporin 4 (AQP4; C), and glial fibrillary acidic protein (GFAP; D). ILM represents inner limiting membrane; GCL represents ganglion cell layer; IPL represents inner plexiform layer; INL represents inner nuclear layer; OPL represents outer plexiform layer; ONL represents outer nuclear layer; OLM represents outer limiting membrane; IS represents inner segments of the photoreceptors; OS represents outer segments of the photoreceptors; RPE represents retinal pigmented epithelium. Magnification is 200×.