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Updated: Jun 27, 2026
09:16
Array Comparative Genomic Hybridization (Array CGH) for Detection of Genomic Copy Number Variants
Published on: February 21, 2015
[Preliminary application of MLPA-based array in detecting Y chromosome abnormalities].
Da-Wen Zhou1, Yi-Hua Guan, Miao Xu
1Shanghai Institute of Medical Genetics, School of Medicine, and Center Laboratory, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 200040, China. zdwmail2006@yahoo.com.cn
Yi Chuan = Hereditas
|December 17, 2008
Summary
MLPA-based array (Array-MLPA) accurately detects sex chromosome abnormalities, including small deletions missed by karyotyping. This method offers a highly efficient and reliable approach for clinical diagnosis of chromosomal disorders.
Area of Science:
- Genetics
- Molecular Biology
- Cytogenetics
Context:
- Sex chromosome abnormalities impact development and fertility.
- Accurate detection is crucial for diagnosis and management.
- Traditional karyotyping has limitations in detecting small chromosomal changes.
Purpose:
- To evaluate the feasibility and accuracy of Array-MLPA for detecting Y chromosome abnormalities.
- To compare Array-MLPA with karyotyping and PCR for chromosomal analysis.
- To identify novel applications of Array-MLPA in clinical diagnostics.
Summary:
- MLPA probes targeting TSPY, PRY, and RBMY loci on the Y chromosome were developed.
- Array-MLPA was applied to 15 patient samples with known karyotypes.
- Results showed consistency with karyotyping and identified deletions missed by it, confirmed by PCR.
Impact:
- Array-MLPA demonstrates high efficiency and reliability in chromosomal analysis.
- It can detect subtle chromosomal abnormalities beyond karyotyping's resolution.
- Array-MLPA shows significant potential for clinical diagnosis of chromosome abnormalities.
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