Fig. 4From: The expression and clinical significance of miR-1226 in patients with periodontitisThe concentration of pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α) in the gingival crevicular fluid of healthy volunteers and periodontitis patients. The concentration of IL-1β, IL-6, and TNF-α significantly increased in periodontitis patients relative to healthy volunteers. ***P < 0.001 evaluated by student’s t-testBack to article page