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. 2022 Mar 10;14(6):1162. doi: 10.3390/nu14061162

Figure 6.

Figure 6

Glial activation. Glial fibrillary acidic protein (GFAP) immunofluorescence staining was increased, extending to the outer nuclear layer compared to the normal control group at 4 and 12 weeks after onset of diabetes (A,C). Nicotinamide treatment significantly attenuated GFAP expression at 4 and 12 weeks after induction of diabetes (Both p < 0.001; (B,D)). Scale bar = 20 μm. DM, diabetes mellitus; NAM, nicotinamide. GCL, ganglion cell layer. INL, inner nuclear layer. ONL, outer nuclear layer. *, significantly different as indicated (p < 0.05).