基础科学和病原发生学
Maulikkumar P Patel1,2, Arda Cetin1,2, Matthew Johnson1,2
1Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
这项研究确定了四种影响阿尔茨海默病风险的基因修饰剂,这些基因修饰剂存在于自体主导阿尔茨海默病 (ADAD) 突变载体中. 这些发现为未来的临床试验和ADAD的遗传咨询提供了洞察力.
科学领域:
- 遗传学 是一个遗传学.
- 神经科学是一个神经科学.
- 生物标志物 生物标志物
背景情况:
- 自体主导性阿尔茨海默病 (ADAD) 显示出不同的临床表现,尽管高度透的突变.
- 遗传变异可能会改变ADAD的疾病风险和表现.
- 研究基因修饰剂对于理解ADAD异质性至关重要.
研究的目的:
- 在ADAD突变载体中识别改变阿尔茨海默病 (AD) 风险的常见遗传变异.
- 探索已识别的基因位置对发病时的年龄和脑脊液生物标志物的影响.
主要方法:
- 全基因组关联研究 (GWAS) 在101名ADAD参与者和5050名对照中进行.
- 对AD风险的逻辑回归,对发病时的年龄的线性回归和生物标志物分析.
- 卡普兰-梅尔生存分析和家庭内隔离分析.
主要成果:
- 确定了与AD风险相关的四个全基因组显著位置.
- 一种CNIH4位点变体 (p.Gly54Ser) 与AD风险有关.
- 一种CCNG1位点变异在AD发病时的年龄减少了大约8年.
- 一个RHOJ位点变异与改变的AD脑脊液生物标志物相关 (tTau,pTau181,Aβ42/40).
结论:
- 确定了四种影响ADAD风险和呈现的基因修饰剂.
- 这些发现提供了关于AD病原体和潜在治疗点的见解.
- 结果支持常见遗传变异在调节罕见疾病表型中的作用.
相关概念视频
Infection
11.6K
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...
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...
11.6K
Urinary Tract Infection II: Pathophysiology
524
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...
524
Cystic Fibrosis: Pathogenesis
676
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,...
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,...
676
Pneumonia II: Pathophysiology
2.5K
The pathophysiology of pneumonia involves the following steps:
2.5K
Stages of Infection
64.7K
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...
64.7K
Defense Against Bacterial Pathogens
2.6K
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...
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...
2.6K


