Journal article
A cytogeneticist's perspective on genomic microarrays
Human reproduction update, Vol.10(3), pp.221-226
05/2004
Handle:
https://hdl.handle.net/2376/113905
PMID: 15140869
Abstract
The identification of cytogenetic imbalance is an important component of clinical genetics. About 1 in 154 newborns has a chromosome abnormality. Conventional cytogenetic analysis has enabled the identification of microscopic alterations of the chromosomes. The development of fluorescence in situ hybridization (FISH) and other molecular methodologies has made possible the identification of submicroscopic aberrations. An additional development was comparative genomic hybridization (CGH), a method that directly compares two genomes for DNA copy differences. As first developed, the substrate for CGH analysis is normal metaphase chromosomes. Recently, CGH has been applied to microarrays (array CGH) constructed from large insert clones to identify chromosome imbalance. Array CGH has many advantages over conventional cytogenetic and molecular cytogenetic techniques. Array CGH can be comprehensive (genome-wide), high resolution, amenable to automation, rapid, and sensitive. We anticipate that array CGH will be employed in the clinical cytogenetics laboratory in the near future and will lead to the identification of the chromosomal basis of new syndromes and existing genetic conditions.
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Details
- Title
- A cytogeneticist's perspective on genomic microarrays
- Creators
- Lisa G Shaffer - Health Research and Education Center, Washington State University Spokane, Sacred Heart Medical Center, and Signature Genomic Laboratories, Spokane, Washington, USA. lshaffer@wsu.eduBassem A Bejjani
- Publication Details
- Human reproduction update, Vol.10(3), pp.221-226
- Academic Unit
- Department of Medical Education and Clinical Science; Center for Reproductive Biology
- Publisher
- England
- Identifiers
- 99900547564501842
- Language
- English
- Resource Type
- Journal article