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Related Concept Videos

Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

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...
Single Nucleotide Polymorphisms-SNPs01:05

Single Nucleotide Polymorphisms-SNPs

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,...
Genomics02:02

Genomics

Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
Human Genetics01:28

Human Genetics

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...
Pharmacogenomics: Identification of New Drug Targets01:29

Pharmacogenomics: Identification of New Drug Targets

Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
Genetic Screens02:46

Genetic Screens

Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing  genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...

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Related Experiment Video

Updated: Jun 5, 2026

Large-Scale Multi-Omics Genome-Wide Association Studies (Mo-GWAS): Guidelines for Sample Preparation and Normalization
08:27

Large-Scale Multi-Omics Genome-Wide Association Studies (Mo-GWAS): Guidelines for Sample Preparation and Normalization

Published on: July 27, 2021

[Genome-wide association studies].

D Grimm1, H E Blum, R Thimme

  • 1Abteilung Innere Medizin II, Universitätsklinikum Freiburg.

Deutsche Medizinische Wochenschrift (1946)
|January 13, 2011
PubMed
Summary
This summary is machine-generated.

Genome-wide association studies (GWAS) identify genetic markers for diseases and traits. These studies are improving disease understanding, prediction, and treatment, moving towards clinical practice.

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Last Updated: Jun 5, 2026

Large-Scale Multi-Omics Genome-Wide Association Studies (Mo-GWAS): Guidelines for Sample Preparation and Normalization
08:27

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Area of Science:

  • Genetics
  • Human Disease Research

Background:

  • Genome-wide association studies (GWAS) identify genetic associations with complex diseases and traits.
  • Over 150 gene loci linked to ~60 diseases and characteristics.
  • Interleukin 28B gene polymorphism impacts Hepatitis C progression and treatment.

Purpose of the Study:

  • To highlight the growing importance of GWAS in understanding human diseases.
  • To emphasize the potential of GWAS in clinical practice.

Main Methods:

  • Utilizes large-scale genetic data analysis.
  • Focuses on identifying single nucleotide polymorphisms (SNPs) associated with phenotypes.

Main Results:

  • Established over 150 gene-disease/trait associations.
  • Demonstrated the clinical relevance of specific gene polymorphisms (e.g., IL28B in Hepatitis C).

Conclusions:

  • GWAS are crucial for unraveling disease pathogenesis.
  • Expected to significantly enhance disease prediction, prevention, diagnosis, and therapy.
  • GWAS are poised to become integral to clinical practice.