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Yu, Stephanie C Y; Jiang, Peiyong; Chan, K C Allen; Faas, Brigitte H W; Choy, Kwong W; Leung, Wing C; Leung, Tak Y; Lo, Y M Dennis; Chiu, Rossa W K
Clinical chemistry 63, Številka: 2Journal Article
Noninvasive prenatal detection of fetal subchromosomal copy number aberrations (CNAs) can be achieved through massively parallel sequencing of maternal plasma DNA. However, when a mother herself is a carrier of a CNA, one cannot discern if her fetus has inherited the CNA. In addition, false-positive results would become more prevalent when more subchromosomal regions are analyzed. We used a strategy that combined count- and size-based analyses of maternal plasma DNA for the detection of fetal subchromosomal CNAs in 7 target regions for 10 test cases. For the 5 cases in which CNAs were present only in the fetus, the size-based approach confirmed the aberrations detected by the count-based approach. For the 5 cases in which the mother herself carried an aberration, we successfully deduced that 3 of the fetuses had inherited the aberrations and that the other 2 fetuses had not inherited the aberrations. No false positives were observed in this cohort. Combined count- and size-based analysis of maternal plasma DNA permits the noninvasive elucidation of whether a fetus has inherited a CNA from its mother who herself is a carrier of the CNA. This strategy has the potential to improve the diagnostic specificity of noninvasive prenatal testing.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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