Figure 5 | International Journal of Oral Science

Figure 5

From: Intragingival injection of Porphyromonas gingivalis-derived lipopolysaccharide induces a transient increase in gingival tumour necrosis factor-α, but not interleukin-6, in anaesthetised rats

Figure 5

Immunohistochemical staining for TLR2 and TLR4 in the periodontal tissue of the upper incisors. A high magnification view of the boxed region in the left panel is shown in the right panel. TLR2 expression in epithelial cells (arrowheads in a); TLR2 expression in periodontal ligament fibroblasts (arrowheads in b); TLR4 expression in epithelial cells (arrowheads in c); and TLR4 expression in periodontal ligament fibroblasts (arrowheads in d). Bar = 20 μm. AB, alveolar bone; C, the cementum; D, dentine; PDL, periodontal ligament; TLR, Toll‐like receptor.

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