1
|
Ma N, Zhu Z, Hu J, Pang J, Yang S, Liu J, Chen J, Tang W, Kuang H, Hu R, Li Z, Wang H, Peng Y, Xi H. Case report: Detection of fetal trisomy 9 mosaicism by multiple genetic testing methods: Report of two cases. Front Genet 2023; 14:1121121. [PMID: 36968600 PMCID: PMC10036773 DOI: 10.3389/fgene.2023.1121121] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 02/27/2023] [Indexed: 03/12/2023] Open
Abstract
Chromosomal mosaicism remains a perpetual diagnostic and clinical dilemma. In the present study, we detected two prenatal trisomy 9 mosaic syndrome cases by using multiple genetic testing methods. The non-invasive prenatal testing (NIPT) results suggested trisomy 9 in two fetuses. Karyotype analysis of amniocytes showed a high level (42%–50%) of mosaicism, and chromosomal microarray analysis (CMA) of uncultured amniocytes showed no copy number variation (CNV) except for large fragment loss of heterozygosity. Ultrasound findings were unmarkable except for small for gestational age. In Case 1, further umbilical blood puncture confirmed 22.4% and 34% trisomy 9 mosaicism by CMA and fluorescent in situ hybridization (FISH) respectively. After comprehensive consideration of the genetic and ultrasound results, the two gravidas decided to receive elective termination and molecular investigations of multiple tissue samples from the aborted fetus and the placenta. The results confirmed the presence of true fetoplacental mosaicism with levels of trisomy 9 mosaicism from 76% to normal in various tissues. These two cases highlight the necessity of genetic counseling for gravidas whose NIPT results highly suggest the risk of chromosome 9 to ascertain the occurrence of mosaicism. In addition, the comprehensive use of multiple genetic techniques and biological samples is recommended for prenatal diagnosis to avoid false-negative results. It should also be noted that ultrasound results of organs with true trisomy 9 mosaicism can be free of structural abnormalities during pregnancy.
Collapse
Affiliation(s)
- Na Ma
- Department of Medical Genetics, Hunan Provincial Maternal and Child Healthcare Hospital, Changsha, China
| | - Zhenhua Zhu
- Department of General Surgery, Changsha Central Hospital Affiliated to University of South China, Changsha, China
| | - Jiancheng Hu
- Department of Medical Genetics, Hunan Provincial Maternal and Child Healthcare Hospital, Changsha, China
| | - Jialun Pang
- Department of Medical Genetics, Hunan Provincial Maternal and Child Healthcare Hospital, Changsha, China
| | - Shuting Yang
- Department of Medical Genetics, Hunan Provincial Maternal and Child Healthcare Hospital, Changsha, China
| | - Jing Liu
- Department of Medical Genetics, Hunan Provincial Maternal and Child Healthcare Hospital, Changsha, China
| | - Jing Chen
- Department of Medical Genetics, Hunan Provincial Maternal and Child Healthcare Hospital, Changsha, China
| | - Wanglan Tang
- Department of Medical Genetics, Hunan Provincial Maternal and Child Healthcare Hospital, Changsha, China
| | - Haiyan Kuang
- Department of Ultrasonography, Hunan Provincial Maternal and Child Healthcare Hospital, Changsha, China
| | - Rong Hu
- Department of Medical Genetics, Hunan Provincial Maternal and Child Healthcare Hospital, Changsha, China
| | - Zhuo Li
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics School of Life Sciences, School of Life Sciences, Central South University, Changsha, China
| | - Hua Wang
- Department of Medical Genetics, Hunan Children’s Hospital, Changsha, China
| | - Ying Peng
- Department of Medical Genetics, Hunan Provincial Maternal and Child Healthcare Hospital, Changsha, China
- *Correspondence: Ying Peng, ; Hui Xi,
| | - Hui Xi
- Department of Medical Genetics, Hunan Provincial Maternal and Child Healthcare Hospital, Changsha, China
- *Correspondence: Ying Peng, ; Hui Xi,
| |
Collapse
|
2
|
Chen CP, Chern SR, Wu PS, Chen SW, Wu FT, Chen LF, Chen YY, Wang W. Detection of maternal uniparental disomy 9 in association with low-level mosaic trisomy 9 at amniocentesis in a pregnancy associated with intrauterine growth restriction, abnormal first-trimester screening result (low PAPP-A and low PlGF), maternal preeclampsia and a favorable outcome. Taiwan J Obstet Gynecol 2022; 61:141-145. [PMID: 35181026 DOI: 10.1016/j.tjog.2021.11.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/15/2021] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE We present detection of maternal uniparental disomy (UPD) 9 in association with low-level mosaic trisomy 9 at amniocentesis in a pregnancy associated with intrauterine growth restriction (IUGR), an abnormal first-trimester maternal serum screening result, abnormal non-invasive prenatal testing (NIPT), maternal preeclampsia and a favorable outcome. CASE REPORT A 37-year-old, primigravid woman underwent first-trimester maternal serum screening and NIPT at 11 weeks of gestation, which revealed a gene dosage increase in chromosome 9 and low levels of plasma protein-A (PAPP-A) and placental growth factor (PlGF) in maternal blood. The woman underwent amniocentesis at 16 weeks of gestation, which revealed a karyotype of 47,XX,+9[4]/46,XX[35] in cultured amniocytes. Simultaneous array comparative genomic hybridization (aCGH) analysis on uncultured amniocytes revealed a result of arr [GRCh37] (9) × 3 [0.14] (X) × 2, compatible with mosaic trisomy 9. The parental karyotypes were normal. Repeat amniocentesis was performed at 20 weeks of gestation. The cultured amniocytes had a karyotype of 47,XX,+9[1]/46,XX[23]. The uncultured amniocytes had a mosaic trisomy 9 level of 10.7% (12/112 cells) by interphase fluorescence in situ hybridization (FISH), a mosaic trisomy 9 level of 10-14% (log2 ratio = 0.1) by aCGH, and maternal uniparental isodisomy 9 by polymorphic DNA marker analysis. Prenatal ultrasound revealed IUGR, and the mother had preeclampsia. At 29 weeks of gestation, a 1054-g phenotypically normal baby was delivered because of preterm labor. The cord blood and umbilical cord had the karyotype of 46, XX and maternal UPD 9 and isodisomy 9, while the placenta had trisomy 9 of maternal origin. Postnatal FISH anlaysis on 101 buccal mucosal cells and 100 urinary cells at age three months detected no trisomy 9 signals. The baby was doing well at age six months. CONCLUSION Pregnancy with low-level mosaic trisomy 9 and maternal UPD 9 at amniocentesis can be associated with IUGR, maternal preeclampsia and a favorable outcome. Fetuses with maternal UPD 9 can be associated with an abnormal NIPT result concerning chromosome 9, an abnormal first-trimester maternal serum screening result (low PAPP-A and low PlGF) and mosaic trisomy 9 at amniocentesis.
Collapse
Affiliation(s)
- Chih-Ping Chen
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan; Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan; School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; Institute of Clinical and Community Health Nursing, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Obstetrics and Gynecology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Schu-Rern Chern
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan
| | | | - Shin-Wen Chen
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan
| | - Fang-Tzu Wu
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan
| | - Li-Feng Chen
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan
| | - Yun-Yi Chen
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan
| | - Wayseen Wang
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan
| |
Collapse
|
3
|
Li M, Glass J, Du X, Dubbs H, Harr MH, Falk M, Smolarek T, Hopkin RJ, Zackai E, Sheppard SE. Trisomy 9 mosaic syndrome: Sixteen additional patients with new and/or less commonly reported features, literature review, and suggested clinical guidelines. Am J Med Genet A 2021; 185:2374-2383. [PMID: 33969943 DOI: 10.1002/ajmg.a.62251] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/20/2021] [Accepted: 04/22/2021] [Indexed: 11/10/2022]
Abstract
Trisomy 9 mosaic syndrome (T9M) is a rare condition characterized by multiorgan system involvement including craniofacial dysmorphisms, cardiac, genitourinary (GU), skeletal, and central nervous system (CNS) abnormalities. Although more than 100 cases have been reported in the literature, a comprehensive review has not been performed nor have clinical guidelines been established. Therefore, we describe the clinical features of 16 additional patients, review features of previously reported individuals, and suggest clinical guidelines. Our findings expand the clinical phenotype of T9M, including novel features of amblyopia, astigmatism, corectopia of pupil, posterior embryotoxon, and diaphragmatic eventration. Most patients had prenatal and perinatal issues, particularly from respiratory, growth, and feeding standpoints. Although small birth parameters were common, long-term growth trends varied widely. An association with advanced parental ages was also identified. The spectrum of growth and development was wide, ranging from nonverbal patients to those able to participate in educational programs with age-appropriate peers. The severity of clinical outcomes was unrelated to blood lymphocyte mosaicism levels. Microarray analysis had a higher diagnostic rate compared to standard karyotype analysis and should be utilized if this diagnosis is suspected. Future longitudinal studies will be key to monitor long-term outcomes of individuals with T9M and determine best practices for clinical management.
Collapse
Affiliation(s)
- Mindy Li
- Division of Genetics, Department of Pediatrics, Rush Medical College and Rush University Medical Center, Chicago, Illinois, USA
| | - Jennifer Glass
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Xiaoli Du
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Holly Dubbs
- Division of Human Genetics, Department of Pediatrics, University of Pennsylvania Perelman School of Medicine and The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Margaret Horton Harr
- Division of Human Genetics, Department of Pediatrics, University of Pennsylvania Perelman School of Medicine and The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Marni Falk
- Division of Human Genetics, Department of Pediatrics, University of Pennsylvania Perelman School of Medicine and The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Teresa Smolarek
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Robert J Hopkin
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Elaine Zackai
- Division of Human Genetics, Department of Pediatrics, University of Pennsylvania Perelman School of Medicine and The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Sarah E Sheppard
- Division of Human Genetics, Department of Pediatrics, University of Pennsylvania Perelman School of Medicine and The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| |
Collapse
|
4
|
THE RARE REGULAR TRISOMY 17: FREQUENCY AND PHENOTYPIC PORTRAIT. EUREKA: HEALTH SCIENCES 2017. [DOI: 10.21303/2504-5679.2017.00291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This paper presents the data from our own research of frequency of full regular trisomy 17 (T17) based on 1808 samples of miscarriages, 1572 medical induced abortions at 5-11 weeks of gestation, and 9689 samples of invasive prenatal tests done between 11 and 24 weeks of pregnancy. The frequency of full T17 in all miscarriages was 1/152 and in medical induced abortions - 1/524; the population frequency of T17 in the first trimester accounted for 1/454.
Additionally, it presents the data on the proportion of T17 of all autosomal trisomies structure in different periods of fetal development. When performing invasive prenatal testing we detected 4 cases of T17 that represented 0, 58 % of autosomal trisomies among fetuses of 11-22 gestational weeks.
Furthermore, the paper introduces a symptom-complex of fetal abnormalities that are typical of regular full trisomy 17.
Collapse
|
5
|
Wallerstein R, Misra S, Dugar RB, Alem M, Mazzoni R, Garabedian MJ. Current knowledge of prenatal diagnosis of mosaic autosomal trisomy in amniocytes: karyotype/phenotype correlations. Prenat Diagn 2015; 35:841-7. [DOI: 10.1002/pd.4620] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 05/01/2015] [Accepted: 05/07/2015] [Indexed: 12/18/2022]
Affiliation(s)
- Robert Wallerstein
- Departments of Pediatrics; Santa Clara Valley Medical Center; San Jose CA USA
| | - Sonya Misra
- Departments of Pediatrics; Santa Clara Valley Medical Center; San Jose CA USA
| | - R. Bryce Dugar
- Departments of Pediatrics; Santa Clara Valley Medical Center; San Jose CA USA
| | - Monika Alem
- Obstetrics and Gynecology; Santa Clara Valley Medical Center; San Jose CA USA
| | - Ronit Mazzoni
- Obstetrics and Gynecology; Santa Clara Valley Medical Center; San Jose CA USA
| | | |
Collapse
|
6
|
Sun L, Zhang L, Zhou J, Yang X, Duan T, Wang W. Noninvasive prenatal testing for fetal trisomy 9 mosaicism by maternal plasma DNA sequencing. CASE REPORTS IN PERINATAL MEDICINE 2015. [DOI: 10.1515/crpm-2013-0085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Maternal plasma DNA sequencing based noninvasive prenatal testing (NIPT) has been proven to be highly accurate in the detection of trisomy 21, 18, 13, X and Y, however, few reports have been made on its detection efficiency of rare complex aneuploidies. Here, we report a case of fetal trisomy 9 mosaicism identified by using NIPT, which may provide useful information for the further integration of NIPT into prenatal screening and diagnosis practice.
Collapse
Affiliation(s)
- Luming Sun
- Department of Obstetrics, Shanghai 1 st Maternity and Infant Hospital, Shanghai, China
| | - Lei Zhang
- BGI-Shenzhen, BGI-Health, Shenzhen, Guangdong, China
| | - Jia Zhou
- Department of Obstetrics, Shanghai 1 st Maternity and Infant Hospital, Shanghai, China
| | - Xiaonan Yang
- BGI-Shenzhen, BGI-Health, Shenzhen, Guangdong, China
| | - Tao Duan
- Department of Obstetrics, Shanghai 1 st Maternity and Infant Hospital, Shanghai, China
| | - Wei Wang
- BGI-Shenzhen, BGI-Health, Shenzhen, Guangdong, China
| |
Collapse
|
7
|
Chen CP, Su YN, Su JW, Chern SR, Chen YT, Chen LF, Wang W. Mosaic trisomy 12 at amniocentesis: Prenatal diagnosis and molecular genetic analysis. Taiwan J Obstet Gynecol 2013; 52:97-105. [DOI: 10.1016/j.tjog.2013.01.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2012] [Indexed: 11/24/2022] Open
|
8
|
Discrepancy in the trisomy mosaicism level between cultured amniocytes and uncultured amniocytes in prenatally detected mosaic trisomy 20. Taiwan J Obstet Gynecol 2013; 52:145-6. [DOI: 10.1016/j.tjog.2013.01.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2012] [Indexed: 11/20/2022] Open
|
9
|
Chen CP, Su YN, Chern SR, Chen YT, Wu PS, Su JW, Pan CW, Wang W. Mosaic trisomy 2 at amniocentesis: Prenatal diagnosis and molecular genetic analysis. Taiwan J Obstet Gynecol 2012; 51:603-11. [DOI: 10.1016/j.tjog.2012.09.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2012] [Indexed: 11/30/2022] Open
|
10
|
Chen CP, Chang SD, Su YN, Chen M, Chern SR, Su JW, Chen YT, Chen WL, Pan CW, Lee MS, Wang W. Rapid positive confirmation of mosaicism for a small supernumerary marker chromosome as r(8) by interphase fluorescence in situ hybridization, quantitative fluorescent polymerase chain reaction, and array comparative genomic hybridization on uncultured amniocytes in a pregnancy with fetal pyelectasis. Taiwan J Obstet Gynecol 2012; 51:405-10. [PMID: 23040926 DOI: 10.1016/j.tjog.2012.07.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2012] [Indexed: 10/27/2022] Open
Abstract
OBJECTIVE This study aimed at presenting prenatal diagnosis and molecular cytogenetic characterization of a small supernumerary marker chromosome (sSMC) derived from chromosome 8 by fluorescence in situ hybridization (FISH), quantitative fluorescent polymerase chain reaction (QF-PCR), and array comparative genomic hybridization (aCGH) on uncultured amniocytes. MATERIALS, METHODS, AND RESULTS A 32-year-old woman underwent amniocentesis at 19 weeks of gestation because of fetal pyelectasis. Amniocentesis revealed a de novo ring-shaped sSMC in two of 21 colonies of cultured amniocytes. Repeated amniocentesis at 22 weeks of gestation revealed a karyotype of 47,XY,+mar[8]/46,XY[32] in cultured amniocytes. Spectral karyotyping and FISH confirmed that the sSMC was derived from chromosome 8. She underwent a third amniocentesis at 26 weeks of gestation. Oligonucleotide-based aCGH analysis on uncultured amniocytes demonstrated a 43 Mb genomic gain in chromosome 8 encompassing 8p22→q12.1. Polymorphic DNA marker analysis of the uncultured amniocytes revealed a maternal origin of the sSMC and excluded uniparental disomy 8. Interphase FISH analysis showed three D8Z2 signals in 8/40 (20%) of uncultured amniocytes. The cultured amniocytes had a karyotype of 47,XY,+r(8)(p22q12.1)[3]/46,XY[37]. The pregnancy was carried to term, and an apparently normal baby, weighing 3300 g, was delivered with mild hydronephrosis but no other phenotypic abnormalities. The cord blood was found to have a karyotype of 47,XY,+r(8)(p22q12.1)[2]/46,XY[38]. CONCLUSION Prenatal diagnosis of fetal pyelectasis should alert obstetricians of chromosome aberration. Interphase FISH, QF-PCR, and aCGH analyses on uncultured amniocytes are helpful in rapid positive confirmation of an sSMC detected at amniocentesis.
Collapse
Affiliation(s)
- Chih-Ping Chen
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Chen CP, Su YN, Chen YY, Chern SR, Su JW, Chen YT, Town DD, Wang W. Usefulness of interphase FISH on uncultured amniocytes for rapid confirmation of low-level trisomy 7 mosaicism in a pregnancy with fetal intrauterine growth restriction and microcephaly. Taiwan J Obstet Gynecol 2012; 51:471-4. [PMID: 23040944 DOI: 10.1016/j.tjog.2012.07.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/02/2012] [Indexed: 10/27/2022] Open
Affiliation(s)
- Chih-Ping Chen
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan.
| | | | | | | | | | | | | | | |
Collapse
|
12
|
Chen CP, Chen M, Chern SR, Wu PS, Chang SP, Lee DJ, Chen YT, Chen LF, Su JW, Hwa-Ruey Hsieh A, Hwa-Jiun Hsieh A, Wang W. Prenatal diagnosis and molecular cytogenetic characterization of mosaicism for a small supernumerary marker chromosome derived from ring chromosome 2. Taiwan J Obstet Gynecol 2012; 51:411-7. [DOI: 10.1016/j.tjog.2012.07.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2012] [Indexed: 11/26/2022] Open
|
13
|
Chen CP, Chang SD, Chueh HY, Su YN, Su JW, Chern SR, Chen YT, Lee CC, Town DD, Chen WL, Chen LF, Lee MS, Pan CW, Wang W. Rapid positive confirmation of trisomy 21 mosaicism at amniocentesis by interphase FISH, QF-PCR and aCGH on uncultured amniocytes. Taiwan J Obstet Gynecol 2012; 51:475-80. [DOI: 10.1016/j.tjog.2012.07.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2011] [Indexed: 10/27/2022] Open
|
14
|
An overview of a 30-year experience with amniocentesis in a single tertiary medical center in Taiwan. Taiwan J Obstet Gynecol 2012; 51:206-11. [DOI: 10.1016/j.tjog.2012.04.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2012] [Indexed: 11/20/2022] Open
|
15
|
Chen CP, Huang HK, Su YN, Chern SR, Su JW, Lee CC, Town DD, Chen WL, Chen YT, Wang W. Trisomy 7 mosaicism at amniocentesis: Interphase FISH, QF-PCR, and aCGH analyses on uncultured amniocytes for rapid distinguishing of true mosaicism from pseudomosaicism. Taiwan J Obstet Gynecol 2012; 51:77-82. [DOI: 10.1016/j.tjog.2012.01.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2011] [Indexed: 11/16/2022] Open
|
16
|
Mosaic deletion-duplication syndrome of chromosome 3: Prenatal molecular cytogenetic diagnosis using cultured and uncultured amniocytes and association with fetoplacental discrepancy. Taiwan J Obstet Gynecol 2011; 50:485-91. [DOI: 10.1016/j.tjog.2011.10.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2011] [Indexed: 11/20/2022] Open
|
17
|
|
18
|
Abstract
Chromosomal imbalances can result from numerical or structural anomalies. Numerical chromosomal abnormalities are often referred to as aneuploid conditions. This article focuses on the occurrence of constitutional and acquired autosomal aneuploidy in humans. Topics covered include frequency, mosaicism, phenotypic findings, and etiology. The article concludes with a consideration of anticipated advances that might allow for the development of screening tests and/or lead to improvements in our understanding and management of the role that aneuploidy plays in the aging process and acquisition of age-related and constitutional conditions.
Collapse
Affiliation(s)
- Colleen Jackson-Cook
- Department of Pathology, Virginia Commonwealth University, Richmond, VA 23298, USA.
| |
Collapse
|
19
|
Chen CP, Chen M, Pan YJ, Su YN, Chern SR, Tsai FJ, Chen YT, Wang W. Prenatal diagnosis of mosaic trisomy 8: Clinical report and literature review. Taiwan J Obstet Gynecol 2011; 50:331-8. [DOI: 10.1016/j.tjog.2011.07.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2011] [Indexed: 10/15/2022] Open
|
20
|
Chen CP, Su YN, Wu PC, Lee CC, Pan CW, Wang W. Rapid Aneuploidy Diagnosis by Array Comparative Genomic Hybridization Using Uncultured Amniocytes in a Pregnancy With Fetal Nuchal Edema and Mild Ascites. J Med Ultrasound 2011. [DOI: 10.1016/j.jmu.2011.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|