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Infection01:20

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When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
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Stages of infection describe what happens to a susceptible host once a pathogen invades the human body. The stages of infection are incubation, prodromal, illness, stage of decline, and convalescence. The incubation stage is the period from exposure to a pathogen until symptoms start. The infected person is unaware of impending illness as the pathogens grow and multiply within the body. The duration may vary depending on the type of infection. The incubation period of measles averages ten to...
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基础科学和病原发生学

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概括
此摘要是机器生成的。

唐氏综合征 (DS) 通过内分泌体网络 (ELN) 和自功能障碍加速阿尔茨海默病 (AD) 风险. 准APP或Rab5可以使ELN功能正常化,并减轻DS-AD病理.

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科学领域:

  • 神经科学是一个神经科学.
  • 细胞生物学 细胞生物学
  • 遗传学 是一个遗传学.

背景情况:

  • 唐氏综合征 (DS) 显著提高了阿尔茨海默病 (AD) 的风险.
  • 内分泌体网络 (ELN) 和自途径功能障碍是DS-AD病变发生的核心原因.
  • 在DS-AD中RAB5过活化的作用尚未完全理解.

研究的目的:

  • 研究APP基因剂量对ELN和DS的自的影响.
  • 澄清RAB5过激活在DS-AD中的作用.
  • 评估针对APP或Rab5.5的治疗潜力.

主要方法:

  • 从DS,DS-AD个体和DP16DS小鼠模型中检查了死后的大脑样本.
  • 评估了RAB5,RAB7,RAB11激活,它们的GEFs,cathepsins和自标志物.
  • 用APP和Rab5特有的反感小核酸 (ASO) 治疗DP16小鼠.

主要成果:

  • DS和DP16的大脑显示ELN功能障碍与RAB5过度激活,RAB7/11活动增加,GEFs升高和cathepsins,所有依赖APP剂量.
  • 损伤的自与降低TSC1/2和mTOR过酸化有关.
  • 在Dp16小鼠中,ASO治疗使ELN功能正常化,改善了自,并减少了DS-AD病理.

结论:

  • APP剂量驱动的RAB5过激活破坏了DS中的ELN和自.
  • 准APP或Rab5在DS-AD中恢复细胞功能方面显示出希望.
  • 这项研究强调了APP在DS-AD病变发生过程中的作用以及潜在的治疗途径.