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Infection01:20

Infection

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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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Urinary Tract Infection II: Pathophysiology01:25

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The pathophysiology of urinary tract infections (UTIs) encompasses several progressive stages, beginning with bacterial colonization and culminating in potential systemic complications if untreated. UTIs are primarily initiated by bacteria, such as Escherichia coli, which often originate from the gastrointestinal tract and migrate to the urinary system through the periurethral area. This migration can occur via several routes, including improper hygiene practices, sexual activity, or...
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Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
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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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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.
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基础科学和病原发生学

Katrina Bazemore1, Taha Iqbal1, Jin Sha1

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此摘要是机器生成的。

针对阿尔茨海默氏症 (AD) 的途径特异性多基因风险得分 (途径-PRS) 使用三个注释策略进行了评估. 包括调节变异在内的重点从粉样蛋白通路转移到蛋白质和细胞局部化通路.

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科学领域:

  • 遗传学 是一个遗传学.
  • 生物信息学是一种生物信息学.
  • 神经科学是一个神经科学.

背景情况:

  • 路径特定的多基因风险评分 (路径-PRS) 评估对复杂疾病的遗传易感性.
  • 位置注释可能会错过对阿尔茨海默氏症 (AD) 等疾病至关重要的非编码变体.
  • 这项研究比较了英国生物库 (UKB) 数据中AD途径-PRS的三个注释策略.

研究的目的:

  • 评估不同变体注释策略对阿尔茨海默病 (AD) 途径特定多基因风险评分 (途径-PRS) 绩效的影响.
  • 确定纳入监管信息如何影响AD遗传学的途径优先级.
  • 为了比较从位置式和功能性注释衍生的路径-PRS.

主要方法:

  • 在AD遗传总结统计数据上进行的路径丰富分析.
  • 应用了三种不同的注释策略 (S-1,S-2,S-3),包括定位,染色体相互作用和eQTL数据.
  • 路径PRS被构建,在UKB培训套件中调整,并在UKB测试套件中验证.

主要成果:

  • 确定了20个路径集群,代表37个基因本体学 (GO) 路径.
  • 与S-1和S-2相比,S-3策略注释的变体明显较少.
  • 标注策略影响了途径优先级,S-3突出显示了蛋白质和细胞局部化途径,而不是与粉样蛋白相关的途径.

结论:

  • 包括AD路径-PRS结构中的调节变异,将焦点从粉样蛋白路径转移到蛋白质和细胞局部化路径.
  • 选择注释策略显著影响AD遗传风险的生物学解释.
  • 未来的工作将探索将功能注释作为路径PRS构建的先验.