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相关概念视频

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.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
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Urinary Tract Infection II: Pathophysiology01:25

Urinary Tract Infection II: Pathophysiology

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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: Pathogenesis01:23

Cystic Fibrosis: Pathogenesis

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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.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
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The pathophysiology of pneumonia involves the following steps:
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Stages of Infection01:26

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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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Defense Against Bacterial Pathogens01:31

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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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基础科学和病原发生学

Michael J Borrie1,2,3,4,5, Natalie A Phillips6, Sarah Best2

  • 1Division of Geriatric Medicine, Western University, London, ON, Canada.

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概括
此摘要是机器生成的。

神经退行和痴呆症综合评估 (COMPASS-ND) 研究招募了整个神经退行谱的各种参与者. 这项研究为全球注册研究人员提供了有关认知障碍和痴呆症的宝贵数据.

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科学领域:

  • 神经科学是一个神经科学.
  • 老年学是一门学科.
  • 生物标志物研究 生物标志物研究

背景情况:

  • 神经退行和痴呆症综合评估 (COMPASS-ND) 研究在11个诊断队列中招募了1173名参与者,涵盖了从正常认知到所有类型痴呆症的认知功能的全部范围.
  • 参与者接受了全面的评估,包括临床评估,神经心理学,感觉和运动测试,磁共振成像 (MRI),并提供生物样本用于生物标志物分析.

研究的目的:

  • 通过招募代表神经退行全谱的多元参与者池来填补关键的知识空白.
  • 通过其包容性招聘战略,将COMPASS-ND与其他大型研究区分开来.

主要方法:

  • 招聘利用广告和专门诊所治疗神经认知障碍和记忆障碍.
  • 数据经过了强有力的监测和清理,用于基线和时间2评估.
  • 分析包括遗传,MRI,脑脊液 (CSF) 和血液生物标志物.

主要成果:

  • 数据发布包括基线数据,神经成像分析,脑脊液,遗传和血液生物标志物,可通过纵向在线研究和成像系统 (LORIS) 访问.
  • 已经完成了40次解剖,并提交了119份数据访问请求.
  • 目前正在进行的第三阶段招聘旨在招募400名多样化的参与者,重点关注那些没有认知障碍或轻度认知障碍但不患痴呆症的人,并考虑性别/性别平衡.

结论:

  • COMPASS-ND成功招募了来自神经退行全方位的参与者,解决了当前研究中的差距.
  • 将讨论参与和研究场所融资的挑战和战略.
  • 数据可通过数据访问请求向全球注册研究人员和实习生访问.