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Related Concept Videos

DNA Microarrays02:34

DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
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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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Related Experiment Video

Updated: Jul 18, 2026

Identification of Mycobacterium Species by DNA Microarray Chip Method
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Published on: June 24, 2025

Genomic microarrays in clinical diagnosis.

Joris A Veltman1

  • 1Department of Human Genetics, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands. j.veltman@antrg.umcn.nl

Current Opinion in Pediatrics
|November 14, 2006
PubMed
Summary

Genomic microarrays offer enhanced resolution for detecting submicroscopic chromosomal alterations, revolutionizing genetic diagnostics. These advanced methods are increasingly replacing traditional karyotyping for whole-genome analysis in clinical settings.

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Array Comparative Genomic Hybridization (Array CGH) for Detection of Genomic Copy Number Variants
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Array Comparative Genomic Hybridization (Array CGH) for Detection of Genomic Copy Number Variants

Published on: February 21, 2015

Area of Science:

  • Genetics
  • Genomics
  • Molecular Cytogenetics

Background:

  • Traditional cytogenetic analysis relies on karyotyping for whole-genome examination of chromosomal anomalies.
  • Molecular cytogenetics advancements are significantly enhancing the resolution of human genome analysis.
  • Genomic microarrays represent a key technological development in this field.

Purpose of the Study:

  • To review various genomic microarray approaches for molecular cytogenetic applications.
  • To discuss the implementation of these microarray techniques in routine clinical diagnostics.
  • To highlight the shift from traditional methods to advanced genomic profiling.

Main Methods:

  • Array-based comparative genomic hybridization (aCGH) is a primary genomic microarray technique discussed.
  • The review covers methods enhancing genomic analysis from megabase to kilobase resolution.
  • Implementation strategies for clinical diagnostic settings are examined.

Main Results:

  • Genomic microarrays identify causative submicroscopic copy number alterations in patients with mental retardation.
  • A significant proportion of these alterations are unique and distributed throughout the genome.
  • Inherited copy number variations, without immediate clinical impact, are also detected.

Conclusions:

  • Genome profiling using genomic microarrays is emerging as a crucial diagnostic tool.
  • Microarray-based methods may supplement or replace conventional chromosome banding.
  • The choice between methods depends on diagnostic yield and cost-effectiveness.