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. Author manuscript; available in PMC: 2011 Aug 1.
Published in final edited form as: J Periodontal Res. 2010 Mar 9;45(4):574–578. doi: 10.1111/j.1600-0765.2009.01245.x

Fig. 3.

Fig. 3

Relative expression of innate immune receptors in the gingivae of young and old mice. Quantitative real-time PCR (qPCR) was used to determine gingival mRNA expression levels for the indicated receptors (normalized against GAPDH mRNA levels). The gingivae used were excised from young (8-10 weeks of age) and old (≥ 18 months of age) BALB/c mice. Results are shown as fold induction relative to young. Each data point represents the mean ± SD of 10 separate expression values, corresponding to qPCR analysis of total gingival RNA from individual mice. A minimum of two-fold difference was a requirement for further testing of statistical significance. Asterisks indicate statistically significant (p < 0.05) differences between old and young mice.