线粒体生物发生障碍和氧化损伤在老鼠和人类中促进耐火性顶端牙周炎
Jun Wang1,2, Yuge Chen1,3, Huina Yuan1,4
1School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China.
International endodontic journal
|June 17, 2024
概括
线粒体功能障碍和氧化应激显著导致耐火性顶牙牙周炎 (RAP). 这项研究在老鼠和人类RAP病变中发现线粒体生物发生障碍和氧化损伤增加,突出了疾病发展的关键因素.
科学领域:
- 线粒体生物学和内牙科中的氧化应激.
- 耐火性顶端牙周炎 (RAP) 的致病性.
- 在周周病变中骨质再吸收的细胞机制.
背景情况:
- 耐火性顶尖牙周炎 (RAP) 是一个重大的临床挑战.
- 线粒体功能障碍和氧化应激在RAP病变发生中的作用仍然不完全理解.
- 研究细胞损伤机制对于开发向疗法至关重要.
研究的目的:
- 为了确定线粒体生物生成障碍是否有助于RAP.
- 评估氧化应激损伤在RAP发展中的作用.
- 在实验性大鼠模型和人类RAP标本中研究这些因素.
主要方法:
- 已确定Enterococcus faecalis在老鼠上诱导的RAP,并获得了人类RAP标本.
- 通过放射学和组织学评估周周骨损伤和细胞变化.
- 评估了线粒体生物发生调节剂 (PGC-1α,Nrf2),线粒体功能 (ATP,mtDNA,呼吸链复合体) 和氧化应激标志物 (mtROS,3-NT,4-HNE,8-OHdG,MDA).
主要成果:
- 与对照人群相比,RAP病变显著增加了骨质再吸收,亡细胞和TRAP阳性细胞.
- 线粒体生物发生调节剂 (PGC-1α,Nrf2) 显著减少,表明线粒体生物发生受损.
- 线粒体功能障碍 (mtROS增加,ATP减少,mtDNA减少) 和高氧化应激标志物在RAP中明显.
结论:
- 线粒体生物发生障碍是耐火性顶端牙周炎发展的重要因素.
- 氧化应激造成的损伤在RAP的发病过程中起着至关重要的作用.
- 这些发现突出了线粒体和氧化应激作为RAP的关键治疗点.
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