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Antibiotics resistance in Streptococcus pneumoniae and correlates of pbp2b-gene amplicom profile to penicillin resistance
Author(s): 
Pages: 311-313
Year: Issue:  4
Journal: CHINESE JOURNAL OF MICROBIOLOGY AND IMMUNOLOGY

Keyword:  肺炎链球菌抗生素耐药性PCR限制性内切酶多态性分析;
Abstract: 目的了解肺炎链球菌对青霉素和其它抗生素的耐药情况;对40株青霉素敏感菌株和30株青霉素不敏感菌株进行pbp2b基因扩增产物RFLP图谱相关性研究. 方法采用肉汤稀释法、E-试验和K-B纸片法进行抗生素药物敏感试验;通过用特异性引物pF和pR对肺炎链球菌进行PCR扩增,并对扩增产物进行限制性内切酶HaeⅢ消化反应. 结果肺炎链球菌对青霉素的不敏感率为9.9%~14.6%;40株青霉素敏感菌株(MICs≤0.094μg/ml)中的39株(97.5%)为s1、s2和s3三种之一,1株为r1;30株青霉素不敏感菌株(MICs≥0.12μg/ml)中的26株(86.7%)为r1~r6六种之一,其余4株为s1. 结论青霉素和β-内酰胺酶类抗生素对北京地区的肺炎链球菌具有活性;肺炎链球菌的耐药性和pbp2b基因扩增产物图谱之间有相关性.
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