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铁螯合剂和硝酸镓对碳青霉烯类耐药鲍曼不动杆菌生长的影响 被引量:4

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摘要 目的检测铁螯合剂和硝酸镓对临床标本分离的碳青霉烯类耐药鲍曼不动杆菌生长的抑制作用,分析铁螯合剂及硝酸镓的抗菌机制。方法采用微量稀释法检测铁螯合剂和硝酸镓对20株碳青霉烯类耐药鲍曼不动杆菌的抑制作用,同时观察不同铁离子浓度对硝酸镓抑菌作用的影响。结果铁螯合剂去铁胺和去铁铜对试验菌株的最低抑菌浓度(MIC)值分别为32μmol/L和64μmol/L,而硝酸镓对试验菌株的MIC值为16μmol/L,各菌株对同一种药物的MIC值相同,且高浓度的铁离子能够降低硝酸镓的抑菌作用。结论铁螯合剂通过结合铁离子,硝酸镓通过与铁离子竞争,均限制细菌对铁的摄取和利用,干扰细菌铁代谢途径而抑制细菌生长,具有较强的抗菌作用,对碳青霉烯类耐药鲍曼不动杆菌的生长具有抑制作用。
出处 《广东医学》 CAS 北大核心 2016年第4期489-491,共3页 Guangdong Medical Journal
基金 广东省医学科研基金立项课题(编号:A2013173)
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参考文献17

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