Fig. 2
From: LncRNA KCNA2-AS regulates spinal astrocyte activation through STAT3 to affect postherpetic neuralgia
NO expression was increased in the spinal cord of PHN model rats. The PHN rat model was constructed with a consistent approach to the above description. The sham group rats were injected with uninfected CV-1 cells as control. The experiment lasted 4 weeks, and 5 rats were sacrificed in each group every other week. a The level of nitric oxide (NO) was detected. b Spinal cord tissues were collected from the PHN group and sham group at 1 w, 2 w and 4 w, immunohistochemical staining was used to detect the level of NO. c Spinal cord tissues were collected from the PHN group and sham group at 1 w, 2 w, and 4 w, respectively, and immunofluorescence staining was performed by using NOS/GFAP. **P < 0.01 vs. sham group