黄金葡萄球菌 在多西环素暴露后预防-符合条件的人群中对四环素产生抗性和共抗性
Rachel Mittelstaedt1,2, Sanjat Kanjilal3,4, David Helekal2
1Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital.
The Journal of infectious diseases
|December 24, 2024
概括
黄金葡萄球菌对四环素不敏感性在符合多西环素暴露后预防 (doxy-PEP) 的男性中很常见. 这种耐药性与其他抗生素有关,这表明doxy-PEP可能会促进多药耐药菌株,突出显示需要监测.
科学领域:
- 传染性疾病 传染性疾病
- 抗微生物耐药性 抗微生物耐药性
- 公共卫生 公共卫生
背景情况:
- 黄金葡萄球菌感染对健康构成重大风险.
- 抗菌素耐药性是一个日益严重的全球性问题.
- 杜西环素暴露后预防 (doxy-PEP) 用于预防细菌感染.
研究的目的:
- 在有资格接受doxy-PEP的男性中调查金黄色葡萄球菌四环素不敏感性的流行情况.
- 为了确定四环素不敏感性和对其他抗生素的耐药性之间的关联.
- 评估多西-PEP对抗多药性黄金菌的选择的潜在影响.
主要方法:
- 从有资格接受doxy-PEP的男性中分离S aureus的回顾性分析.
- 对四环素,三甲胺-硫黄和克林达米辛进行抗菌感应性测试.
- 抗药性流行率与一般人群的比较.
主要成果:
- 与一般人群相比,S aureus中环素不敏感性在可接受doxy-PEP的人群中更为普遍.
- 对于四环素不敏感的金黄色分离物也经常表现出对三甲-硫甲醇和克林达米辛的耐药性.
- 这些发现表明,doxy-PEP有可能对多抗药性黄金色菌株进行选择.
结论:
- 在有资格接受doxy-PEP的男性中,四环素不敏感的S aureus的患病率更高.
- 对其他关键抗生素的共同耐药性在这些菌株中很常见.
- 持续的监测至关重要,以监测多药耐药性S aureus由于使用doxy-PEP而出现的情况.
相关概念视频
01:30Development of Antibiotic Resistance
Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
00:57Antibiotic Selection
52.3K
Overview
52.3K
01:20Desensitization and Tachyphylaxis
1.5K
Tachyphylaxis is described as a rapid decrease in response to a drug after repeated or continuous administration of the same drug dose. It is a phenomenon where the body becomes less responsive to a particular substance or intervention over time, requiring higher doses or stronger interventions to achieve the same effect. It results from adaptive changes in the body's receptors, signaling pathways, or physiological processes that occur in response to prolonged exposure to a stimulus.
1.5K
01:28Pulmonary Tuberculosis V
170
Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
170
01:27Combined Effects of Drugs: Synergism
3.7K
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
3.7K