Research Article

Differential Adaptations of Methicillin-Resistant Staphylococcus aureus to Serial In Vitro Passage in Daptomycin: Evolution of Daptomycin Resistance and Role of Membrane Carotenoid Content and Fluidity

Table 2

In vitro susceptibility profiles to host defense peptides (HDPs).

Strains hNP-1 (10 μg/mL) hNP-1 (20 μg/mL)

CB1118 25 ± 14 12 ± 13
CB2206 20 ± 12 9 ± 9
CB2207 46 ± 13*+ 15 ± 7
CB2208 68 ± 10* 55 ± 32*+
CB2209 102 ± 19* 101 ± 26*
CB2210 99 ± 16* 94 ± 15*

*P value < 0.05 versus parental strain; *+P value < 0.08 versus parental strain.