Semi-nested Taqman real-time quantitative PCR for noninvasive prenatal diagnosis of Bart's hydrops fetalis

Background: Non-invasive prenatal diagnosis based on detection of fetal cell-free DNA is limited when mother and father are both carriers for the same autosomal recessive mutation. Objective: Develop the semi-nested Taqman real-time PCR for quantification of α-thalassemia-1 SEA type deletion allele...

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Main Authors: Pornprasert S., Sukunthamala K., Kunyanone N., Sittiprasert S., Thungkham K., Junorse S., Pongsawatkul K., Pattanaporn W., Jitwong C.
Format: Article
Language:English
Published: 2014
Online Access:http://www.ncbi.nlm.nih.gov/pubmed/3502482
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Institution: Chiang Mai University
Language: English
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spelling th-cmuir.6653943832-8002014-08-29T09:02:09Z Semi-nested Taqman real-time quantitative PCR for noninvasive prenatal diagnosis of Bart's hydrops fetalis Pornprasert S. Sukunthamala K. Kunyanone N. Sittiprasert S. Thungkham K. Junorse S. Pongsawatkul K. Pattanaporn W. Jitwong C. Background: Non-invasive prenatal diagnosis based on detection of fetal cell-free DNA is limited when mother and father are both carriers for the same autosomal recessive mutation. Objective: Develop the semi-nested Taqman real-time PCR for quantification of α-thalassemia-1 SEA type deletion allele in plasma of α-thalassemia-1 SEA carriage pregnancies. Material and Method: Plasma DNA was extracted from six women who carried fetuses with normal, 11 with heterozygote α-thalassemia-1 SEA type deletion and seven with Bart's hydrops fetalis. DNA was amplified using conventional PCR with the primary specific primer set for α-thalassemia-1 SEA type deletion. PCR product was then subjected to the semi-nested realtime PCR using the secondary specific primer and Taqman probe set for α-thalassemia-1 SEA type deletion. The standard curve was constructed using ten-fold serial dilutions of conventional PCR product of the heterozygote α-thalassemia-1 SEA type deletion. Results: Women who carried fetuses with Bart's hydrops fetalis displayed a trend toward higher mean copy number of α-thalassemia-1 SEA type deletion allele vs. women who carried fetuses with normal and heterozygote, albeit not reaching statistical significance. Conclusion: The maternally inherited fetal allele present in maternal plasma is difficult to discern the fetal cell-free DNA from a higher background DNA of the mother. Thus, further investigation is needed to improve the diagnosis of Bart's hydrops fetalis using this technique. 2014-08-29T09:02:08Z 2014-08-29T09:02:08Z 2012 Article 1252208 22379734 JMTHB http://www.ncbi.nlm.nih.gov/pubmed/3502482 http://www.scopus.com/inward/record.url?eid=2-s2.0-84856878134&partnerID=40&md5=2b0016c9d12a6593c9b0607e3f1e54bc http://cmuir.cmu.ac.th/handle/6653943832/800 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description Background: Non-invasive prenatal diagnosis based on detection of fetal cell-free DNA is limited when mother and father are both carriers for the same autosomal recessive mutation. Objective: Develop the semi-nested Taqman real-time PCR for quantification of α-thalassemia-1 SEA type deletion allele in plasma of α-thalassemia-1 SEA carriage pregnancies. Material and Method: Plasma DNA was extracted from six women who carried fetuses with normal, 11 with heterozygote α-thalassemia-1 SEA type deletion and seven with Bart's hydrops fetalis. DNA was amplified using conventional PCR with the primary specific primer set for α-thalassemia-1 SEA type deletion. PCR product was then subjected to the semi-nested realtime PCR using the secondary specific primer and Taqman probe set for α-thalassemia-1 SEA type deletion. The standard curve was constructed using ten-fold serial dilutions of conventional PCR product of the heterozygote α-thalassemia-1 SEA type deletion. Results: Women who carried fetuses with Bart's hydrops fetalis displayed a trend toward higher mean copy number of α-thalassemia-1 SEA type deletion allele vs. women who carried fetuses with normal and heterozygote, albeit not reaching statistical significance. Conclusion: The maternally inherited fetal allele present in maternal plasma is difficult to discern the fetal cell-free DNA from a higher background DNA of the mother. Thus, further investigation is needed to improve the diagnosis of Bart's hydrops fetalis using this technique.
format Article
author Pornprasert S.
Sukunthamala K.
Kunyanone N.
Sittiprasert S.
Thungkham K.
Junorse S.
Pongsawatkul K.
Pattanaporn W.
Jitwong C.
spellingShingle Pornprasert S.
Sukunthamala K.
Kunyanone N.
Sittiprasert S.
Thungkham K.
Junorse S.
Pongsawatkul K.
Pattanaporn W.
Jitwong C.
Semi-nested Taqman real-time quantitative PCR for noninvasive prenatal diagnosis of Bart's hydrops fetalis
author_facet Pornprasert S.
Sukunthamala K.
Kunyanone N.
Sittiprasert S.
Thungkham K.
Junorse S.
Pongsawatkul K.
Pattanaporn W.
Jitwong C.
author_sort Pornprasert S.
title Semi-nested Taqman real-time quantitative PCR for noninvasive prenatal diagnosis of Bart's hydrops fetalis
title_short Semi-nested Taqman real-time quantitative PCR for noninvasive prenatal diagnosis of Bart's hydrops fetalis
title_full Semi-nested Taqman real-time quantitative PCR for noninvasive prenatal diagnosis of Bart's hydrops fetalis
title_fullStr Semi-nested Taqman real-time quantitative PCR for noninvasive prenatal diagnosis of Bart's hydrops fetalis
title_full_unstemmed Semi-nested Taqman real-time quantitative PCR for noninvasive prenatal diagnosis of Bart's hydrops fetalis
title_sort semi-nested taqman real-time quantitative pcr for noninvasive prenatal diagnosis of bart's hydrops fetalis
publishDate 2014
url http://www.ncbi.nlm.nih.gov/pubmed/3502482
http://www.scopus.com/inward/record.url?eid=2-s2.0-84856878134&partnerID=40&md5=2b0016c9d12a6593c9b0607e3f1e54bc
http://cmuir.cmu.ac.th/handle/6653943832/800
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