常见的SNCA遗传变异和帕金森病风险:系统性审查和元分析
Raziyeh Mohammadi1, Mahdi Shirazi2, Sayedeh Fatemeh Sadat-Madani3
1Duke-NUS Medical School, National University of Singapore, Singapore 169857, Singapore.
International journal of molecular sciences
|July 12, 2025
概括
这是SNCA基因.
科学领域:
- 神经遗传学 神经遗传学
- 分子生物学分子生物学
- 流行病学 流行病学
背景情况:
- 编码alpha-synuclein的SNCA基因是帕金森病 (PD) 发病的一个关键因素.
- 在SNCA中,特定的单核酸多态 (SNPs) 与PD风险增加有关.
- 了解这些遗传关联对于阐明PD病因学至关重要.
研究的目的:
- 系统地评估常见的SNCA基因多态和帕金森病风险之间的关联.
- 对现有的队列和病例控制研究进行全面的元分析.
- 为了识别帕金森病的强大的遗传风险变体.
主要方法:
- 在2023年11月20日之前发表的27项队列和病例控制研究的元分析.
- 在PubMed,Scopus和Web of Science进行的搜索.
- 根据基,主导和衰退模型计算的聚合赔率比率;评估异质性和出版偏差.
主要成果:
- 在所有低异质性的模型中,SNP rs11931074始终与PD风险相关.
- SNP rs356219和rs356165也显示出显著的关联,尽管区域差异导致了异质性.
- 在基因模型中,SNP rs2583988显示出边际显著性,但在灵敏度分析中并不强大.
结论:
- 证实SNP rs11931074是帕金森病的一个强大的遗传风险变体.
- 作为PD风险因素,SNP rs356219和rs356165得到支持.
- 需要进一步的大型多民族研究来澄清PD的机制,并推进PD的精准医学.
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相关概念视频
Comparing Copy Number Variations and SNPs
Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Single Nucleotide Polymorphisms-SNPs
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
Genome-wide Association Studies-GWAS
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...
