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Rapid detection of sex chromosomal aneuploidies by PCR


Mehra, S; Schmid, Werner; Spiegel, Roland (1995). Rapid detection of sex chromosomal aneuploidies by PCR. Indian Journal of Medical Research, 101:111-4.

Abstract

In this report we present a method to determine sex chromosomal aneuploidies by duplex polymerase chain reaction with sufficient precision to distinguish between one, two and more copies of X and Y sequences. We coamplified an autosomal gene segment (exon 33 of neurofibromatosis type I gene on chromosome 17) as an internal standard for our sequence of interest (AMXY) on X and Y chromosomes. By using this standard as a reference for two gene copies we could visually estimate the relative gene dosage for the X-, and Y-specific AMXY sequences in the DNA sample under consideration. We have evaluated this method in normal males and females and in patients with known sex chromosomal aneuploidies and have found it to be a reliable and quick tool for detection of numerical sex chromosomal abnormalities.

Abstract

In this report we present a method to determine sex chromosomal aneuploidies by duplex polymerase chain reaction with sufficient precision to distinguish between one, two and more copies of X and Y sequences. We coamplified an autosomal gene segment (exon 33 of neurofibromatosis type I gene on chromosome 17) as an internal standard for our sequence of interest (AMXY) on X and Y chromosomes. By using this standard as a reference for two gene copies we could visually estimate the relative gene dosage for the X-, and Y-specific AMXY sequences in the DNA sample under consideration. We have evaluated this method in normal males and females and in patients with known sex chromosomal aneuploidies and have found it to be a reliable and quick tool for detection of numerical sex chromosomal abnormalities.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Medical Genetics
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Scopus Subject Areas:Life Sciences > General Biochemistry, Genetics and Molecular Biology
Language:English
Date:March 1995
Deposited On:29 Jan 2023 06:36
Last Modified:28 Apr 2024 01:47
Publisher:Indian Council of Medical Research
ISSN:0971-5916
OA Status:Closed
PubMed ID:7751038
Other Identification Number:Corpus ID: 36757178
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