[根据肥胖相关基因的性变异,确定缺血性中风的遗传病因:一项兄弟研究]
1Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing 100191, China.
概括
发现了肥胖和缺血性中风 (IS) 之间的遗传联系. 影响身体质量指数 (BMI) 的基因显示IS具有质性,与脂质代谢和铁亡相关的特定基因发挥作用.
科学领域:
- 遗传学 是一个遗传学.
- 心血管疾病流行病学
- 代谢综合征是代谢综合征的一种.
背景情况:
- 肥胖是缺血性中风 (IS) 的重要危险因素.
- 了解肥胖的遗传基础及其对IS的类效应对于制定有针对性的预防和治疗策略至关重要.
- 以前的研究表明,共同的遗传因素可能会将体重指数 (BMI) 和IS联系起来.
研究的目的:
- 通过调查与肥胖相关基因的质变异来确定缺血性中风 (IS) 的遗传病因.
- 为了确定高BMI的遗传风险因素是否在IS的家庭中过度传播.
- 确定特定的基因和途径,涉及到BMI和IS的共同遗传基础.
主要方法:
- 一项不和的兄弟对研究使用北京的方山家族队列进行.
- 身体质量指数 (BMI) 多基因风险得分 (PRS) 使用多基因传播不平衡测试 (pTDT) 构建和分析.
- 确定了单个核酸多态 (SNP),显示BMI和IS之间的质变异,并用于找到相关的风险SNP,基因和途径.
主要成果:
- 发现与高BMI相关的遗传风险在IS的兄弟姐妹中过度传播.
- 鉴定出了一个类型SNP集 (P < 5x10^-4),包含45个与IS相关的SNP,遍及43个独立的基因组风险位和40个基因.
- 这些基因在脂质代谢途径中显著丰富,rs2232852与CYB5R1和ADIPOR1相关,参与脂质代谢和铁.
结论:
- 证实了与BMI相关的基因和IS之间的性变异,突出了共同的遗传影响.
- 鉴定了40个富含脂质代谢途径的基因,其中特定的基因涉及脂质代谢和铁化在IS发展中的作用.
- 这些发现表明,脂质代谢和铁亡途径在缺血性中风的发病过程中很重要.
更多相关视频
10:17An Allele-specific Gene Expression Assay to Test the Functional Basis of Genetic Associations
Published on: November 3, 2010
22.8K
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
8.6K
相关概念视频
01:11Genetic Lingo
102.1K
Overview
102.1K
01:28Human Genetics
547
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
547
01:11Genome-wide Association Studies-GWAS
13.2K
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...
13.2K
01:33Pleiotropy
40.3K
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,...
40.3K
02:41Lethal Alleles
15.4K
Agouti: A Lethal Allele
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
15.4K
01:23Behavioral Genetics and Its Designs
344
Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
344