科普蒂斯根茎提取物通过自素激活作用对肺炎 estreptococcus 的影响
Eon-Bee Lee1,2, Kyubae Lee3
1Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, Republic of Korea.
AMB Express
|July 4, 2024
概括
科普蒂斯根茎提取物CRET70显示强烈的抗菌活性对肺炎链球菌,包括耐药菌株. 这种传统疗法有效地抑制了细菌生长和生物膜的形成,在抗生素耐药性抗击中提供了一个有前途的天然替代方案.
科学领域:
- 药理学 药理学是指药理学的学科.
- 微生物学 微生物学
- 民族植物学 民族植物学
背景情况:
- 肺炎链球菌会导致严重的呼吸道感染.
- 在S. pneumoniae中抗生素耐药性需要新的治疗策略.
- 科普蒂斯根茎传统上用于呼吸道疾病,但其对S. pneumoniae的疗效缺乏经验验证.
研究的目的:
- 为了研究Coptis根茎提取物对S. pneumoniae的抗菌特性.
- 评估Coptis根茎在打击抗生素耐药性的潜力.
- 探索作用机制,包括对细菌自解和生物膜形成的影响.
主要方法:
- 使用乙醇和蒸水制备四种科普蒂斯根茎提取物 (CRET30,CRET50,CRET70,CRDW).
- 通过最小抑制度 (MIC),磁盘扩散和对标准和耐药S. pneumoniae菌株的时间杀死试验来评估抗菌活性.
- 评估生物膜抑制和监测与自解相关的lytA基因表达.
主要成果:
- CRET70提取物表现出强烈的抗菌活性,MIC为0.125μg/mL,对两种S. pneumoniae菌株均具有强烈的抗菌活性.
- CRET70显示出显著的抑制区 (22.17毫米和17.20毫米) 和细菌数量下降2.
- 提取物有效抑制了77.40%的生物膜形成,并诱导了lyta基因的显著过度表达.
结论:
- 科普蒂斯根茎提取物CRET70对S. pneumoniae具有显著的抗菌功效.
- 这些发现表明,Coptis根茎是潜在的天然治疗剂,可以对抗S. pneumoniae感染,特别是在抗生素耐药性增加的背景下.
- lytA基因过度表达表明自解是一种潜在的机制,有助于Coptis根茎的抗菌作用.
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