Combination Therapy of Sophoraflavanone B against MRSA: In Vitro Synergy Testing

Table 1

Determination of the mecA gene status of the Staphylococcus aureus strains used in this study.

S. aureus	Class	mecA gene	β-Lactamase activity	Antibiotic resistance
ATCC 33591	MRSA	+	+	AM, OX
ATCC 25923	MSSA	−	−	−
Clinical isolates
DPS-1	MRSA	+	+	AM, OX
DPS-2	MRSA	+	−	AM, OX
DPS-3	MRSA	+	+	AM, OX
DPS-4	MRSA	+	−	AM, OX
DPS-5	MRSA	+	−	AM, OX

DPS: staphylococcal strain from the Department of Plastic Surgery, Wonkwang University Hospital; +: positive; −: negative; AM: ampicillin; OX: oxacillin.