Table 3.

Effect of TPP on the tbpA_Td transcript as evaluated by qRT-PCR analysis

TPP (μM)a	Mean ± SEM				Fold difference (2−ΔΔCT)
	CT value		ΔCT	ΔΔCT
	tbpATd	dnaK
50	25.00 ± 0.18	21.76 ± 0.08	3.20 ± 0.18	−4.55 ± 0.19	20.53–26.72
−	21.58 ± 0.16	22.93 ± 0.19	−1.35 ± 0.19
10	22.35 ± 0.17	19.69 ± 0.28	2.66 ± 0.28	−4.01 ± 0.28	13.27–19.56
−	21.58 ± 0.16	22.93 ± 0.19	−1.35 ± 0.19

^a−, reduced level of TPP (100 nM) in the OBGM medium for T. denticola.