Research Article

Aggravating Effects of Psychological Stress on Ligature-Induced Periodontitis via the Involvement of Local Oxidative Damage and NF-κB Activation

Figure 3

Sucrose preference. C: control rats; EP: rats with experimental periodontitis; PS: rats exposed to psychological stress; EP+PS: rats with experimental periodontitis exposed to psychological stress; EP+PS+DR: rats with experimental periodontitis exposed to psychological stress and treated with fluoxetine. The data are expressed as , vs. the C group, EP group, and EP+PS+DR group.