22q11.2删除综合征表型与删除位置之间的相关性:元分析
Jianing Li1,2, Rui Wang2,3, Ling Liu1
1Prenatal Diagnosis Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
Archives of gynecology and obstetrics
|July 9, 2025
概括
22q11.2删除的位置影响了22q11.2删除综合征的症状. 中部删除 (LCR22B-D) 与心脏缺陷有关,而较小的删除 (LCR22A-B) 增加了精神病风险.
科学领域:
- 遗传学 是一个遗传学.
- 医学遗传学 医学遗传学
- 基因组医学是基因组医学.
背景情况:
- 22q11.2删除综合征 (22q11.2 DS) 呈现出不同的临床特征.
- 在22q11.2 DS中表型变异的原因尚未完全理解.
研究的目的:
- 系统地分析22q11.2区域内的删除位置对表型变异性的影响.
- 为了澄清22q11.2 DS.中的基因型-表型相关性.
主要方法:
- 进行了系统的元分析.
- 在2024年9月25日之前搜索了主要的科学数据库 (PubMed,科学网,Scopus,Embase,Cochrane图书馆).
- 从17篇文章 (4107名受试者) 中,数据提取遵循了预定义的包含和排除标准.
主要成果:
- 先天性心脏形与中央删除区域 (LCR22B-D) 有意义地相关 [OR: 2.74].
- 精神和行为异常与较小的典型删除有显著的关联,特别是LCR22A-B区域 [OR:6.26].
- 1296名患者患有心脏缺陷,220人患有精神/行为问题.
结论:
- 在22q11.2 DS中,先天性心脏形与中心缺失 (LCR22B-D) 密切相关.
- 精神和行为异常与LCR22A-B区域更相关,这表明较小的删除会增加这些风险.
- 删除位置是22q11.2 DS.中临床表现的关键决定因素.
更多相关视频
09:16Array Comparative Genomic Hybridization Array CGH for Detection of Genomic Copy Number Variants
Published on: February 21, 2015
19.8K
08:22A Novel Strategy Combining Array-CGH, Whole-exome Sequencing and In Utero Electroporation in Rodents to Identify Causative Genes for Brain Malformations
Published on: December 1, 2017
8.7K
相关概念视频
01:17Karyotyping
62.5K
Overview
62.5K
01:33Pleiotropy
41.2K
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
41.2K
02:30Genomic Imprinting and Inheritance
35.3K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
35.3K