确定类风湿性关节炎与传染病风险之间的遗传关联
Teng Wu1,2, Yunan Wang2, Yunfei Xia2
1Dalian Medical University, Dalian, China.
Clinical rheumatology
|May 16, 2025
概括
这项门德尔随机化研究发现,类风湿性关节炎 (RA) 可能因果上增加肺炎和败血症的风险. 这些发现表明RA与某些感染之间存在潜在联系,需要进一步调查.
科学领域:
- 类风湿病学 类风湿病学
- 传染性疾病 传染性疾病
- 遗传流行病学遗传流行病学
背景情况:
- 风湿性关节炎 (RA) 与感染有关,但因果关系尚不清楚.
- 调查RA和肺炎,败血症,尿路感染 (UTI),皮肤和皮下组织感染 (SSTI) 和细菌性肠道感染 (BII) 之间的因果关系.
研究的目的:
- 使用孟德尔的随机化方法,探索类风湿性关节炎和常见感染之间的潜在因果关系.
- 评估RA的遗传倾向是否会影响对特定感染的易感性.
主要方法:
- 采用孟德尔随机化 (MR) 设计,使用逆方差加权 (IVW),加权中位数 (WM) 和MR-Egger方法.
- 使用单变量MR (UVMR) 和多变量MR (MVMR) 分析,对汇集的全基因组关联研究 (GWAS) 数据进行分析.
- 进行了敏感性分析,以确保结果的可靠性,并评估异质性和性.
主要成果:
- 紫外线MR指示的RA与肺炎 (OR=1.034) 和败血症 (OR=1.079) 的风险增加有关.
- 在调整吸烟,酒精和2型糖尿病 (T2DM) 后,MVMR证实了这些关联.
- 在RA和UTI,SSTI或BII之间没有发现因果关系. 敏感性分析支持结果的有效性.
结论:
- 这项研究提供了强有力的证据,证明类风湿性关节炎与肺炎和败血症风险增加之间存在因果关系.
- 研究结果表明,RA可能会增加对这些特定感染的易感性.
- 需要进一步的研究来验证这些因果关系,并了解潜在的机制.
相关概念视频
Genome-wide Association Studies-GWAS
12.2K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
12.2K
Autoimmune Disorders
348
Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
Concept and Mechanism of Autoimmune Diseases
The immune...
Concept and Mechanism of Autoimmune Diseases
The immune...
348
Factors Affecting the Risk of Infection
10.6K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
10.6K
The JAK-STAT Signaling Pathway
8.5K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
8.5K
Rous Sarcoma Virus (RSV) and Cancer
4.9K
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
4.9K
T Cell Types and Functions
689
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
689


