Research Article

Role of Aminoglycoside-Modifying Enzymes (AMEs) in Resistance to Aminoglycosides among Clinical Isolates of Pseudomonas aeruginosa in the North of Iran

Table 3

The correlation between the AME gene profile of P. aeruginosa clinical isolates and the MIC ranges of aminoglycosides.

GenotypesNo. (%) of MDRsNo. (%) of isolates with different MICs (μg/ml) against amikacinNo. (%) of isolates with different MICs (μg/ml) against gentamicinNo. (%) of isolates with different MICs (μg/ml) against tobramycinNo. (%) of isolates with different MICs (μg/ml) against netilmicin
≤163264-128≥256≤4816-128≥256≤4816-128≥256≤81632-128≥256

ANT(3)-Ia ()7 (87.5)5 (62.5)1 (12.5)02 (25)1 (12.5)02 (25)5 (62.5)1 (12.5)06 (75)1 (12.5)1 (12.5)0 (0)7 (87.5)0
ANT(2)-Ia ()5 (83.3)2 (33.3)2 (33.3)2 (33.3)0002 (33.3)4 (66.6)004 (66.6)2 (33.3)1 (16.6)1 (16.6)3 (50)1 (16.6)
AAC(6)-Ib ()24 (92.3)11 (42.3)4 (15.3)7 (26.9)4 (15.3)1 (3.8)1 (3.8)3 (11.5)21 (80.7)1 (3.8)012 (46.1)13 (50)3 (11.5)018 (69.2)5 (19.2)
AAC(6)-IIa ()16 (88.8)10 (55.5)3 (16.6)3 (16.6)2 (11.1)2 (11.1)1 (5.5)4 (22.2)11 (61.1)2 (11.1)010 (55.5)6 (33.3)4 (22.2)012 (66.6)2 (11.1)
APH(3)-IIb ()13 (86.6)7 (46.6)3 (20)3 (20)2 (13.3)1 (6.6)04 (26.6)10 (66.6)1 (6.6)09 (60)5 (33.3)2 (13.3)1 (6.6)10 (66.6)2 (13.3)
APH(3)-Ib ()01 (100)000001 (100)0001 (100)001 (100)00
ANT(3)-Ia+ ANT(2)Ia ()2 (100)1 (50)1 (50)00001 (50)1 (50)001 (50)1 (50)1 (50)01 (50)0
ANT(3)-Ia+ AAC(6)-Ib ()5 (83.3)4 (66.6)1 (16.6)01 (16.6)002 (33.3)4 (66.6)005 (83.3)1 (16.6)1 (16.6)05 (83.3)0
ANT(3)-Ia+ AAC(6)-IIa ()2 (66.6)2 (66.6)1 (33.3)00001 (33.3)2 (66.6)002 (66.6)1 (33.3)1 (33.3)02 (66.6)0
ANT(3)-Ia+ APH(3)-IIb ()3 (75)2 (50)1 (25)01 (25)001 (25)3 (75)003 (75)1 (25)1 (25)03 (75)0
ANT(2)-Ia+ AAC(6)-Ib ()5 (100)1 (20)2 (40)2 (40)0001 (20)4 (80)002 (40)3 (60)1 (20)03 (60)1 (20)
ANT(2)-Ia+ AAC(6)-IIa ()5 (100)1 (20)2 (40)2 (40)0001 (20)4 (80)002 (40)3 (60)1 (20)03 (60)1 (20)
ANT(2)-Ia+ APH(3)-IIb ()5 (83.3)2 (33.3)2 (33.3)2 (33.3)0002 (33.3)4 (66.6)003 (50)3 (50)1 (16.6)1 (16.6)3 (50)1 (16.6)
ANT(2)-Ia+ APH(3)-Ib ()01 (100)000001 (100)0001 (100)001 (100)00
AAC(6)-Ib+ AAC(6)-IIa ()12 (85.7)7 (50)2 (14.2)3 (21.4)2 (14.2)01 (7.1)2 (14.2)11 (78.5)008 (57.1)6 (42.8)3 (21.4)09 (64.2)2 (14.2)
AAC(6)-Ib+ APH(3)-IIb ()8 (88.8)3 (33.3)2 (22.2)3 (33.3)1 (11.1)001 (11.1)8 (88.8)005 (55.5)4 (44.4)1 (11.1)06 (66.6)2 (22.2)
AAC(6)-IIa+ APH(3)-IIb ()11 (91.66)5 (41.6)3 (25)3 (25)1 (8.3)1 (8.3)03 (25)8 (66.6)1 (8.3)07 (58.3)4 (33.3)2 (16.6)08 (66.6)2 (16.6)
APH(3)-IIb+ APH(3)-Ib ()01 (100)000001 (100)0001 (100)001 (100)00
ANT(3)-Ia+ ANT(2)-Ia+ AAC(6)-Ib ()2 (100)1 (50)1 (50)00001 (50)1 (50)001 (50)1 (50)1 (50)01 (50)0
ANT(3)-Ia+ ANT(2)-Ia+ AAC(6)-IIa ()2 (100)1 (50)1 (50)00001 (50)1 (50)001 (50)1 (50)1 (50)01 (50)0
ANT(3)-Ia+ ANT(2)-Ia+ APH(3)-IIb ()2 (100)1 (50)1 (50)00001 (50)1 (50)001 (50)1 (50)1 (50)01 (50)0
ANT(3)-Ia+ APH(3)-IIb+ AAC(6)-Ib ()2 (66.6)2 (66.6)1 (33.3)00001 (33.3)2 (66.6)00001 (33.3)02 (66.6)0
ANT(3)-Ia+ APH(3)-IIb+ AAC(6)-IIa ()2 (66.6)2 (66.6)1 (33.3)00001 (33.3)2 (66.6)002 (66.6)1 (33.3)1 (33.3)02 (66.6)0
ANT(3)-Ia+ AAC(6)-Ib+ AAC(6)-IIa ()2 (66.6)2 (66.6)1 (33.3)00001 (33.3)2 (66.6)002 (66.6)1 (33.3)1 (33.3)02 (66.6)0
ANT(2)-Ia+ APH(3)-IIb+ AAC(6)-Ib ()5 (100)1 (20)2 (40)2 (40)0001 (20)4 (80)003 (60)2 (40)1 (20)03 (60)1 (20)
ANT(2)-Ia+ AAC(6)-Ib+ AAC(6)-IIa ()5 (100)1 (20)2 (40)2 (40)0001 (20)4 (80)003 (60)2 (40)1 (20)03 (60)1 (20)
APH(3)-IIb+ AAC(6)-Ib+ AAC(6)-IIa ()8 (88.8)3 (33.3)2 (22.2)3 (33.3)1 (11.1)001 (11.1)8 (88.8)005 (55.5)4 (44.4)1 (11.1)06 (66.6)2 (22.2)
ANT(2)-Ia+ APH(3)-IIb+ APH(3)-Ib ()01 (100)000001 (100)0001 (100)001 (100)00
ANT(3)-Ia+ ANT(2)-Ia+ APH(3)-IIb+ AAC(6)-Ib ()2 (100)1 (50)1 (50)00001 (50)1 (50)001 (50)1 (50)1 (50)01 (50)0
ANT(2)-Ia+ APH(3)-IIb+ AAC(6)-Ib+ AAC(6)-IIa ()5 (100)1 (20)2 (40)2 (40)0001 (20)4 (80)003 (60)2 (40)1 (20)03 (60)1 (20)
ANT(3)-Ia+ APH(3)-IIb+ AAC(6)-Ib+ AAC(6)-IIa ()2 (66.6)2 (66.6)1 (33.3)00001 (33.3)2 (66.6)002 (66.6)1 (33.3)1 (33.3)02 (66.6)0
ANT(3)-Ia+ ANT(2)-Ia+ AAC(6)-Ib+ AAC(6)-IIa ()2 (100)1 (50)1 (50)00001 (50)1 (50)001 (50)1 (50)1 (50)01 (50)0
ANT(3)-Ia+ ANT(2)-Ia+ APH(3)-IIb+ AAC(6)-IIa ()2 (100)1 (50)1 (50)00001 (50)1 (50)001 (50)1 (50)1 (50)01 (50)0
ANT(3)-Ia+ ANT(2)-Ia+ APH(3)-IIb+ AAC(6)-Ib+ AAC(6)-IIa ()2 (100)1 (50)1 (50)00001 (50)1 (50)001 (50)1 (50)1 (50)01 (50)0