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Genomics02:02

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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...
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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.
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Pharmacogenetics and pharmacogenomics examine how genetic factors influence an individual's response to drugs. While pharmacogenetics focuses on the impact of specific genetic variants on drug effects, pharmacogenomics takes a broader approach, studying how genetic variation across populations contributes to differences in drug responses. These fields aim to explain why individuals may experience varying levels of efficacy or adverse reactions to the same medication.Variability in drug...
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Genetic variations significantly influence drug response through pharmacokinetics, receptor interactions, and biologic milieu modifications. Pharmacokinetic alterations impact drug metabolism and clearance, affecting efficacy and toxicity. Variants in drug-metabolizing enzymes, such as CYP2C9 and CYP2C19, alter drug activation and elimination. For example, CYP2C9 loss-of-function variants require lower warfarin doses to prevent excessive bleeding, while CYP2C19 variants reduce clopidogrel...
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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...
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Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
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Genomes for medicine.

David R Bentley1

  • 1The Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1SA, UK. drb@sanger.ac.uk

Nature
|May 28, 2004
PubMed
Summary
This summary is machine-generated.

The human genome sequence is nearly complete and available, but requires high-quality annotation for medical applications. Further sequencing, experimental analysis, and phenotype data are crucial for advancing genomic medicine.

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Area of Science:

  • Genomics
  • Bioinformatics
  • Medical Genetics

Background:

  • The human genome sequence is a nearly complete and freely accessible resource.
  • Its current state presents challenges for direct application in clinical medicine.
  • Advancements in genetic research are being driven by this genomic data.

Purpose of the Study:

  • To evaluate the readiness of the human genome sequence for medical applications.
  • To identify the necessary steps for translating genomic data into clinical practice.
  • To highlight the importance of high-quality genomic annotation and data integration.

Main Methods:

  • Review of the current status of human genome sequencing and annotation.
  • Analysis of strategies for identifying medically relevant genetic variations.
  • Assessment of requirements for integrating genomic information with phenotypic data.

Main Results:

  • The human genome sequence is a powerful resource but requires further refinement for medical use.
  • High-quality annotation of functional sequences and variations is essential.
  • Increased genome sequencing, experimental validation, and phenotype data are needed.

Conclusions:

  • The human genome is not yet fully ready for widespread medical application.
  • Comprehensive annotation and data integration are critical for unlocking its clinical potential.
  • User-friendly access to annotated genomes will foster innovation in biomedical research and practice.