基础研究
Copyright ©The Author(s) 2008.
世界华人消化杂志. 2008-06-08; 16(16): 1751-1756
在线出版 2008-06-08. doi: 10.11569/wcjd.v16.i16.1751
表1 PCR引物列表
引物名称序列扩增大小(bp)
hefAF: 5'-ACGCCTCGAGTAAAAGCGCAAGGGAATTTG-3'142
R: 5'-ACGCTCTAGATTCGCTAATTGGCCTAGCAT-3'
hefCF: 5'-TGGAAATCACAGAAACTAAAAGC -3'162
R: 5'-TGGTTGAAGGGGCGAATTA-3'
gyrBF: 5'-TTACTACGACTTATCCTGGGGCTAGCGCTG-3'267
R: 5'-CCCCATCAATTTCCACATTCTCCGC-3'
hefAMF: 5'-GCGCTCGAGGTGGGGCTACCACTAATCTC-3'1298
R: 5'-CGTCTAGACAATCCCTGTGCTGTCTA-3'
kmRF: 5'-GCAAGCTTAATGATTGAACAAGATGGATTG-3'800
R: 5'-GCAAGCTTTCAGAAGAACTCGTCAAGAAG-3'
表2 氯霉素诱导株的多重耐药性比较 (mg/L)
菌株处理甲硝唑琥乙红霉素环丙沙星四环素青霉素G
03154诱导前MIC0.1250.1250.250.250.125
诱导后MIC提高倍数  4×16×
12025诱导前MIC2.00.06250.1250.030.0625
诱导后MIC提高倍数16×  8×16×
12021诱导前MIC4.00.1250.250.1250.0625
诱导后MIC提高倍数16×16×
11032诱导前MIC1.00.06250.06250.06250.25
诱导后MIC提高倍数16×16×
03174诱导前MIC0.50.1250.250.1250.125
诱导后MIC提高倍数32×
11637诱导前MIC0.50.06250.1250.030.25
诱导后MIC提高倍数16×
表3 敏感野生株及MDR菌株实时定量PCR结果
菌株WT(gyrB)WT(hefA)MDR(gyrB)MDR(hefA)WT(hefA/gyrB)MDR(hefA/gyrB)
031540.3790.710.330.861.872.67
120250.780.250.210.590.322.84
120210.800.980.020.171.228.94
110320.321.260.030.183.845.04
031740.130.540.020.114.166.03
116370.231.030.050.494.419.56

引文著录: 刘志强, 郑鹏远. 主动外排泵外膜蛋白编码基因hefA在幽门螺杆菌多重耐药中的重要作用. 世界华人消化杂志 2008; 16(16): 1751-1756