Lactobacillus salivarius and L. gasseri down-regulate Aggregatibacter actinomycetemcomitans exotoxins expression

Table 1 Growth of A. actinomycetemcomitans strain OMZ250b and OMZ295 for up to 6 h in the presence of lactobacilli cell-free culture supernatants

Strain	Bacterial growth at OD₆₀₀
Strain	0 h^a	3 h	6 h
A. actinomycetemcomitans OMZ 250b alone	0.4	0.455 ± 0.035	0.77 ± 0.028
+ L. salivarius OMZ 520	0.4	0.45 ± 0.014	0.645 ± 0.007
+ L. gasseri OMZ 525	0.4	0.435 ± 0.021	0.67 ± 0.084
A. actinomycetemcomitans OMZ 295 alone	0.4	0.46 ± 0.014	0.665 ± 0.022
+ L. salivarius OMZ 520	0.4	0.45 ± 0.015	0.615 ± 0.014
+ L. gasseri OMZ 525	0.4	0.44 ± 0.007	0.525 ± 0.049

ISSN: 1869-2044