In vitro activities of thiazolidione derivatives combined with daptomycin against clinical Enterococcus faecium strains

Table 4 The proportion of viable cells or dead cells within mature biofilm using ImageJ software

Compounds	SYTO9	PI	PI/Total
H2-60	19.785 ± 25.843	12.374 ± 18.152	41.59%
H2-81	24.691 ± 25.063	10.065 ± 25.322	28.96%
AMP	41.525 ± 49.978	13.659 ± 26.067	24.75%
DAP	28.258 ± 28.01	27.802 ± 30.489	49.6%
H2-60 + AMP	13.905 ± 22.923	49.795 ± 53.822	78.17%^a
H2-60 + DAP	18.878 ± 25.598	55.093 ± 64.402	74.48%^b
H2-81 + AMP	37.991 ± 29.629	8.66 ± 20.861	18.56%
H2-81 + DAP	67.603 ± 55.643	36.008 ± 51.793	34.75%
DMSO	131.508 ± 57.004	2.565 ± 10.567	2.0%

^a H2-60 + AMP group vs. H2-60 group, P < 0.01; ^b H2-60 + DAP group vs. H2-60 group, P < 0.01 (Student’s t test)

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