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Updated: Jun 6, 2026
07:42
Chromosome Preparation From Cultured Cells
Published on: January 28, 2014
Development of new postnatal diagnostic methods for chromosome disorders
Lisa G Shaffer1, Bassem A Bejjani
1Signature Genomic Laboratories, Spokane, WA 99207, USA. Shaffer@signaturegenomics.com
Seminars in Fetal & Neonatal Medicine
|November 30, 2010
Summary
Chromosome imbalances cause intellectual and developmental disabilities. Advanced microarray technology significantly improves the detection of these genetic abnormalities in children compared to older methods.
Area of Science:
- Genetics
- Developmental Biology
- Medical Diagnostics
Background:
- Chromosome imbalances are a primary cause of intellectual and developmental disabilities.
- Accurate diagnosis is crucial for understanding and managing these conditions in children.
Purpose of the Study:
- To review current diagnostic methods for chromosomal abnormalities in children.
- To highlight the impact of advanced molecular cytogenetics, particularly microarrays, on diagnostic capabilities.
Main Methods:
- Review of established cytogenetic techniques: karyotyping and fluorescence in situ hybridization (FISH).
- Evaluation of microarray technologies for chromosomal analysis.
- Comparison of detection rates between conventional and molecular cytogenetic methods.
Main Results:
- Karyotyping and FISH are standard diagnostic tools.
- Microarray technologies offer significantly higher resolution and detection rates for chromosomal abnormalities.
- Molecular cytogenetics has advanced the diagnosis of disabilities and congenital anomalies.
Conclusions:
- Microarrays represent a substantial advancement in diagnosing chromosome abnormalities.
- These technological improvements enhance the identification of genetic causes for developmental disorders.
- Continued integration of advanced molecular techniques is vital for pediatric diagnostics.
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