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相关概念视频

Defense Against Bacterial Pathogens01:31

Defense Against Bacterial Pathogens

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The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
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相关实验视频

Updated: Sep 13, 2025

P. aeruginosa Infected 3D Co-Culture of Bronchial Epithelial Cells and Macrophages at Air-Liquid Interface for Preclinical Evaluation of Anti-Infectives
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持续的顶端炎性病变中的细菌活力:系统性审查.

D Nascimento1, I C Guedes1, L M Brand1

  • 1Basic Research Center, Dentistry School, UFRGS, Brazil.

Journal of endodontics
|July 27, 2025
PubMed
概括
此摘要是机器生成的。

在持续的顶端牙周炎中存在活跃的微生物,这种情况往往对治疗无反应. 这一系统性审查证实了细菌的存在,尽管它们的确切位置尚不清楚.

关键词:
基于RNA的方法性牙周炎 (apical periodontitis) 是一种牙周炎.细菌的活力 细菌的活力细胞培养培养的细胞培养.持续的尖端炎症性病变.

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科学领域:

  • 牙周内科医院 牙周内科医院 牙周内科医院
  • 微生物学 微生物学
  • 口腔病理学 口腔病理学

背景情况:

  • 上炎症病变源于微生物感染.
  • 尽管治疗,但这些病变的持续性尚未完全理解.
  • 本综述侧重于在持续的顶端牙周炎中活力的微生物.

研究的目的:

  • 系统地审查关于持久性顶端牙周炎中活力的微生物的证据.
  • 分析微生物存在在抗治疗的顶部病变中的作用.

主要方法:

  • 在多个数据库中进行全面的文献搜索 (MEDLINE/PubMed,EMBASE,Scopus,科学网,科克兰图书馆,CAPES,灰色文献).
  • 包含仅限于在尖端手术期间获取近尖端组织样本的研究.
  • 使用乔安娜·布里格斯研究所检查清单对所包含研究的质量评估.

主要成果:

  • 在522个初步结果中,选出了四项研究.
  • 在持续的顶端牙周炎中检测到有生命力的微生物.
  • 通过细胞培养 (1项研究) 和基于RNA的方法 (3项研究) 确认了细菌活力.
  • 基于RNA的研究显示了方法上的异质性.
  • 这些感染的特点是多种多样的微生物种群.

结论:

  • 证据支持在持续的顶端牙周炎中存在活力细菌.
  • 细菌的确切位置 (病变内部,内根或外根) 需要进一步调查.
  • 了解微生物位置对于解释病变持久性至关重要.