相关实验视频
Updated: Jul 8, 2025

11:29
miRNA Expression Analyses in Prostate Cancer Clinical Tissues
Published on: September 8, 2015
10.9K
微RNA中的四种常见多态化与肝细胞癌风险之间的关联:最新的元分析
Mingxing Chen1, Yu Lu2, Xinyang Wang1
1Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi, China.
Iranian journal of public health
|December 18, 2023
概括
这次元分析发现,微RNA149 (MIR149) 和微RNA196 (MIR196) 多态性是预防肝细胞癌 (HCC) 的保护因素. 这些发现表明,与这些特定的microRNA遗传变异相关的HCC发病风险降低.
科学领域:
- 遗传学 遗传学 是一个
- 在瘤学瘤学.
- 流行病学 流行病学
背景情况:
- 对单核酸多态和肝细胞癌 (HCC) 的流行病学研究产生了有争议的结果.
- 需要进行全面的元分析,以更精确地估计微RNA (MIR) 多态性和HCC风险之间的关联.
研究的目的:
- 进行大规模的元分析,以澄清微RNA多态和肝细胞癌 (HCC) 风险之间的关联.
主要方法:
- 在多个数据库 (PubMed,Cochrane Library,Google Scholar,Web of Science,EMBASE,CBM) 进行了系统的文献搜索,截至2021年9月30日.
- 包括的研究研究了MIR多态和HCC风险之间的关联.
- 使用几率比率 (OR) 和95%置信区间 (CI) 来评估相关性.
主要成果:
- 分析包括29项研究,包括9263例病例和10875例对照.
- 微RNA149 (MIR149) 多态性在整体人群中显著降低了HCC风险 (同卵性模型CC与TT:OR = 0.703,P = 0.005).
- 微RNA 196 (MIR196) 多态性显著降低了整体人群中的HCC风险 (递归模型TT与CT+CC:OR = 0.864,P = 0.04) 和白人 (OR = 0.613,P = 0.014).
结论:
- MIR149和MIR196多态是防止HCC发展的保护因素.
- 未来的研究应该考虑多中心,多区域的研究,包括基因-基因和基因-环境相互作用.
相关概念视频
MicroRNAs
3.0K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
3.0K
Single Nucleotide Polymorphisms-SNPs
15.1K
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,...
15.1K

