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相关概念视频

Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

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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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Stratified Sampling Method01:16

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Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
To choose a stratified sample, divide the population into groups called strata and then take a...
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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

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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.
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相关实验视频

Updated: Jul 27, 2025

Large-Scale Multi-Omics Genome-Wide Association Studies Mo-GWAS: Guidelines for Sample Preparation and Normalization
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全基因组关联研究分层通过

Konstantin Senkevich1,2, Sara Bandres-Ciga3, Alejandro Cisterna-García4

  • 1The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montréal, QC, Canada.

medRxiv : the preprint server for health sciences
|June 9, 2023
PubMed
概括

研究人员在EMP1和VANGL1附近发现了新的遗传位置,与帕金森病 (PD) 风险相关,这取决于MAPT单元型. 需要进一步的研究来证实这些帕金森病遗传发现.

关键词:
在EMP1中,EMP1是EMP1.在GWAS中,GWAS就是GWAS.马普特 (MAPT) 是一个帕金森病是帕金森氏症的一种疾病.旺格尔说,这是一个很好的例子.遗传学 遗传学 遗传学 是一个

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Screening for Functional Non-coding Genetic Variants Using Electrophoretic Mobility Shift Assay EMSA and DNA-affinity Precipitation Assay DAPA
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相关实验视频

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Candidate Gene Testing in Clinical Cohort Studies with Multiplexed Genotyping and Mass Spectrometry
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科学领域:

  • 神经遗传学 神经遗传学
  • 神经退行性疾病的基因组学

背景情况:

  • MAPT位点在帕金森病 (PD) 发病过程中发挥着重要作用.
  • 在MAPT内或附近的遗传变异可以影响PD风险和进展.
  • 了解遗传因素如何改变MAPT的影响对于识别PD机制至关重要.

研究的目的:

  • 为了确定改变MAPT位点在帕金森病中的影响的遗传因素.
  • 为了探索新的遗传关联与PD分层的MAPT类型.

主要方法:

  • 全基因组关联研究 (GWAS) 在国际帕金森病基因组学联盟 (IPDGC) 和英国生物银行 (UKBB) 队列中进行.
  • 群体根据MAPT H1/H1和H2杂型的载体状态进行了分层.
  • 进行负载分析以评估指定基因中罕见变异的关联.

主要成果:

  • 在EMP1附近的一个新位与MAPT H1/H1载体的PD相关 (rs56312722,P=1.80E-08).
  • 在VANGL1附近的一个新型位点与MAPT H2载体的PD相关 (rs11590278,P=2.72E-08).
  • 罕见的EMP1变异与MAPT H2载体中的PD相关 (P=9.46E-05).

结论:

  • 鉴定了与MAPT单质类型相关的PD风险修饰的潜在的新型遗传位点.
  • 在独立的队列中进行复制是必要的,以验证这些发现.
  • 这些发现可能为PD遗传结构提供新的见解.