Figure 2. Levels of TNF-, IL-10, and IFN in the chambers of IFN^-/- mice following local delivery of the IFN gene. The IFN gene or vector alone (n = 6, each group) was injected into the chambers, followed, two days later, by the intra-chamber P. gingivalis challenge. Chamber exudates were harvested after 4 hrs for analysis. Results are expressed as mean ± standard error. Significant differences between IFN gene and vector groups (p < 0.05) are indicated by an asterisk.

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