Retinal Neuropathy in IGT Stage of OLETF Rats: Another Characteristic Change of Diabetic Retinopathy

Figure 4

The immunohistochemical staining of NF-κB, VEGF, and ICAM-1 in retina of OLETF rats at different stages. (a–e) The expression of NF-κB (×400) in the retina of control, NGT, IGT, DM, and DKD stage, respectively, using IHC; (f–j) the expression of VEGF (×400) in the retina of control, NGT, IGT, DM, and DKD stage, respectively, using IHC; (k–o) the expression of ICAM-1 (×400) in the retina of control, NGT, IGT, DM, and DKD stage, respectively, using IHC; (p–r) the quantification of NF-κB, VEGF, and ICAM-1. ^a vs. the control group. ^b vs. NGT. ^c vs. IGT. ^d vs. DM.

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