[Retracted] The In Vitro Antimicrobial and Antibiofilm Activities of Lysozyme against Gram-Positive Bacteria

Table 3

The OD of LYS, AZM, and their combinations with PIP/SBT on the mature biofilms of MRSA.

Groups	MRSA 31		MRSA 33		MRSA 62
	Values	Percentage (%)	Values	Percentage (%)	Values	Percentage (%)
Control		100.0		100.0		100.0
LYS		61.9		117.2		109.9
AZM		113.8		118.6		98.7
PIP/SBT		95.9		93.0		109.9
A: PIP/SBT+LYS		64.6		62.9		91.8
B: PIP/SBT+AZM		90.6		74.3		66.4
Comparison between different groups
A1: A and LYS	—	104.4	—	53.7	—	83.5
B1: B and AZM	—	146.4	—	63.4	—	60.4
A2: A and PIP/SBT	—	56.7	—	53.0	—	93.0
B2: B and PIP/SBT	—	94.5	—	80.0	—	60.4

The values of OD are shown in (SD). The percentage was defined as . MRSA 31, MRSA 33, and MRSA 62 represented three different clinical isolates. , , and compared with the control. MRSA: methicillin-resistant Staphylococcus aureus; OD: optical density; MTT: methylthiazolyldiphenyl-tetrazolium bromide; LYS: lysozyme; AZM: azithromycin; PIP/SBT: piperacillin/sulbactam; –: not tested.