PMID- 26522104 OWN - NLM STAT- MEDLINE DCOM- 20160830 LR - 20151102 IS - 1875-6263 (Electronic) IS - 1028-4559 (Linking) VI - 54 IP - 5 DP - 2015 Oct TI - Maternal mosaicism of sex chromosome causes discordant sex chromosomal aneuploidies associated with noninvasive prenatal testing. PG - 527-31 LID - S1028-4559(15)00159-X [pii] LID - 10.1016/j.tjog.2014.10.009 [doi] AB - OBJECTIVE: To investigate the clinical efficiency of noninvasive prenatal test (NIPT) identifying fetal chromosomal aneuploidies. MATERIALS AND METHODS: In the present study, 917 women with high-risk pregnancies were invited to participate in an NIPT trial based on an Illumina HiSeq massively parallel sequencing platform. Abnormal cases in NIPT were validated by karyotyping and fluorescence in situ hybridization (FISH) analysis. All of the participants' infants were examined clinically and followed up for at least 6 months. RESULTS: A total of 35 (3.82%) high-risk pregnancies were detected with abnormal results in NIPT, which included 25 cases (2.73%) of trisomy 21 (Tri21), four cases (0.44%) of trisomy 18 (Tri18), four cases (0.44%) of Turner syndrome (45, X), one cases (0.11%) of Klinefelter's syndrome (47, XXY), and one cases (0.11%) with lower X chromosome concentration. Further validation indicated that one case of Tri18 and the case with lower X chromosome concentration were false positive results (0.22%) in NIPT. Furthermore, it was found that the false positive case with lower X chromosome concentration in NIPT was caused by maternal sex chromosomal mosaicism (45, X and 46, XX). CONCLUSION: Our findings indicated that maternal mosaicism of sex chromosome could cause discordant sex chromosomal aneuploidies associated with NIPT. We highly recommended that maternal karyotype should be confirmed for the cases with abnormal results in NIPT. CI - Copyright (c) 2015. Published by Elsevier B.V. FAU - Wang, Leilei AU - Wang L AD - Department of Prenatal Diagnosis, Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu 222001, China. FAU - Meng, Qian AU - Meng Q AD - Department of Prenatal Diagnosis, Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu 222001, China. FAU - Tang, Xinxin AU - Tang X AD - Department of Prenatal Diagnosis, Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu 222001, China. FAU - Yin, Ting AU - Yin T AD - Department of Prenatal Diagnosis, Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu 222001, China. FAU - Zhang, Jinglu AU - Zhang J AD - Department of Prenatal Diagnosis, Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu 222001, China. FAU - Yang, Shuting AU - Yang S AD - Department of Prenatal Diagnosis, Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu 222001, China. FAU - Wang, Xuyun AU - Wang X AD - Department of Prenatal Diagnosis, Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu 222001, China. FAU - Wu, Haiqian AU - Wu H AD - Department of Prenatal Diagnosis, Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu 222001, China. FAU - Shi, Qingxi AU - Shi Q AD - Department of Prenatal Diagnosis, Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu 222001, China. FAU - Jenkins, Edmund C AU - Jenkins EC AD - Department of Human Genetics, New York State Institute for Basic Research in Developmental Disabilities, Staten Island, NY 10314, USA. FAU - Zhong, Nanbert AU - Zhong N AD - Department of Prenatal Diagnosis, Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu 222001, China; Department of Human Genetics, New York State Institute for Basic Research in Developmental Disabilities, Staten Island, NY 10314, USA. FAU - Gu, Ying AU - Gu Y AD - Department of Prenatal Diagnosis, Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu 222001, China. Electronic address: yinggulyg@hotmail.com. LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - China (Republic : 1949- ) TA - Taiwan J Obstet Gynecol JT - Taiwanese journal of obstetrics & gynecology JID - 101213819 SB - IM MH - Adolescent MH - Adult MH - Chromosomes, Human, Pair 18/*genetics MH - *Chromosomes, Human, X MH - Down Syndrome/*diagnosis/genetics MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Middle Aged MH - *Mosaicism MH - Pregnancy MH - Prenatal Diagnosis/*methods MH - Sequence Analysis, DNA MH - *Sex Chromosome Aberrations MH - Sex Chromosomes/*genetics MH - Young Adult OTO - NOTNLM OT - chromosomal aneuploidies OT - confined placental mosaicism OT - maternal mosaicism OT - noninvasive prenatal test OT - prenatal diagnosis EDAT- 2015/11/03 06:00 MHDA- 2016/08/31 06:00 CRDT- 2015/11/03 06:00 PHST- 2014/10/29 00:00 [accepted] PHST- 2015/11/03 06:00 [entrez] PHST- 2015/11/03 06:00 [pubmed] PHST- 2016/08/31 06:00 [medline] AID - S1028-4559(15)00159-X [pii] AID - 10.1016/j.tjog.2014.10.009 [doi] PST - ppublish SO - Taiwan J Obstet Gynecol. 2015 Oct;54(5):527-31. doi: 10.1016/j.tjog.2014.10.009.