Figure 7From: Inhibitory effect of zingiber officinale towards Streptococcus mutans virulence and caries development: in vitro and in vivo studies Relative quantification of selected virulent genes expression by quantitative RT-PCR. Expression profile by real time PCR of various virulence genes of S. mutans in response to the treatment with sub- MIC levels of extracts. Each value is an average of triplicate assays. Data are means ± SD (n = 3).Back to article page