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相关概念视频

Pleiotropy01:33

Pleiotropy

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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,...
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Multiple Allele Traits01:49

Multiple Allele Traits

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The Concept of Multiple Allelism
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Genome-wide Association Studies-GWAS01:11

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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...
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Single Nucleotide Polymorphisms-SNPs01:05

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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,...
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Human Genetics01:28

Human Genetics

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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...
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Behavioral Genetics and Its Designs01:23

Behavioral Genetics and Its Designs

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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...
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相关实验视频

Updated: Jun 26, 2025

Large-Scale Multi-Omics Genome-Wide Association Studies Mo-GWAS: Guidelines for Sample Preparation and Normalization
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共同疾病PGS:一个R包,使用多基因分数评估表型之间的共享倾向.

Vincent Pascat1,2,3,4, Liudmila Zudina3,4, Anna Ulrich3,4

  • 1INSERM UMR 1283, CNRS UMR 8199, European Genomic Institute for Diabetes (EGID), Institut Pasteur de Lille, Lille, France.

Human heredity
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概括

这项研究引入了comorbidPGS,这是一个R包,用于使用多基因分数评估表型之间共享的遗传影响. 它揭示了血压和癌症风险之间的显著遗传联系,有助于理解复杂的疾病倾向.

关键词:
血压 血压 血压 血压癌症 癌症 癌症 癌症伴随性疾病 伴随性疾病对疾病的遗传倾向.多基因分数多基因分数软件 软件 软件 软件 软件

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Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information
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科学领域:

  • 遗传学 遗传学 是一个
  • 生物信息学是一种生物信息学.
  • 计算生物学 计算生物学

背景情况:

  • 多基因分数 (PGS) 评估复杂特征的遗传责任,但它们用于识别表型之间的共同遗传倾向是有限的.
  • 了解血压和癌症等疾病之间的共同遗传因素对于全面的风险评估至关重要.

研究的目的:

  • 开发和引入共患PGS R包,以系统地评估使用PGS的相关表型之间的共同遗传效应.
  • 为了研究血压特征与各种癌症之间的共同遗传倾向.

主要方法:

  • 开发了共患PGS R包,该包利用单核酸多态 (SNP) 和它们对主要表型 (Po-PGS) 的效果大小.
  • 应用该包来分析血压表型 (SBP,DBP,脉压) 和癌症 (乳腺,胰腺,脏,前列腺,结直肠) 之间的共同遗传风险.
  • 利用英国生物库数据和来自欧洲祖先个体的独立GWAS总结统计数据.

主要成果:

  • 鉴定出血压 (DBP) 和前列腺癌 (PrC) 的遗传风险之间存在显著的关联.
  • 发现结直肠癌 (CrC) PGS和较低的缩血压 (SBP) 和DBP之间存在显著的关联.
  • 观察到SBP升高的遗传倾向和癌 (KidC) 和PRC风险增加之间的名义上显著关联.

结论:

  • 同病PGS包有效地突出了血压调节和对特定恶性瘤的易感性之间的机制关系.
  • 这些发现强调了心血管特征和癌症发展之间的共同遗传基础,为研究提供了新的途径.
  • 同病PGS为探索跨多样化和相关表型的共同遗传易感性提供了有价值的工具.