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de Oliveira ECF, Cruzeiro IKDC, de Souza CAA, Reis FM. Prevalence of karyotype alterations in couples with recurrent pregnancy loss in a tertiary center in Brazil. REVISTA BRASILEIRA DE GINECOLOGIA E OBSTETRÍCIA 2024; 46:e-rbgo51. [PMID: 38994459 PMCID: PMC11239216 DOI: 10.61622/rbgo/2024rbgo51] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 02/08/2024] [Indexed: 07/13/2024] Open
Abstract
Objective To assess the prevalence and type of chromosomal abnormalities in Brazilian couples with recurrent pregnancy loss (RPL) and compare the clinical characteristics of couples with and without chromosome abnormalities. Methods We assessed the medical records of 127 couples with a history of two or more miscarriages, referred to a tertiary academic hospital in Belo Horizonte, Brazil, from January 2014 to May 2023. Karyotype was generated from peripheral blood lymphocyte cultures, and cytogenetic analysis was performed according to standard protocols by heat-denatured Giemsa (RHG) banding. Results Abnormal karyotypes were detected in 10 couples (7.8%). The prevalence of chromosomal abnormalities was higher among females (6.3%) compared to males (2.0%), but this difference was not statistically significant (p=0.192). The mean number of miscarriages was. 3.3 ± 1.1 in couples with chromosome abnormalities and 3.1 ± 1.5 in couples without chromosome abnormalities (p=0.681). Numerical chromosomal anomalies (6 cases) were more frequent than structural anomalies. Four women presented low-grade Turner mosaicism. No differences were found between couples with and without karyotype alterations, except for maternal age, which was higher in the group with chromosome alterations. Conclusion The prevalence of parental chromosomal alterations in our study was higher than in most series described in the literature and was associated with increased maternal age. These findings suggest that karyotyping should be part of the investigation for Brazilian couples with RPL, as identifying the genetic etiology may have implications for subsequent pregnancies.
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Affiliation(s)
- Elaine Cristina Fontes de Oliveira
- Hospital das ClínicasUniversidade Federal de Minas GeraisBelo HorizonteMGBrazilHospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Ines Katerina Damasceno Cavallo Cruzeiro
- Hospital das ClínicasUniversidade Federal de Minas GeraisBelo HorizonteMGBrazilHospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Cezar Antônio Abreu de Souza
- Hospital das ClínicasUniversidade Federal de Minas GeraisBelo HorizonteMGBrazilHospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Fernando Marcos Reis
- Hospital das ClínicasUniversidade Federal de Minas GeraisBelo HorizonteMGBrazilHospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
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2
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Gao Z, Rice SM, Wodoslawsky S, Long SC, Wang ZX, Torkzaban M, Angarita Africano AM, Liu J, Al-Kouatly HB. A Systematic Review of Reproductive Counseling in Cases of Parental Constitutional Reciprocal Translocation (9;22) Mimicking BCR-ABL1. Front Genet 2022; 13:921910. [PMID: 35991550 PMCID: PMC9386180 DOI: 10.3389/fgene.2022.921910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 06/02/2022] [Indexed: 11/17/2022] Open
Abstract
We aim to determine the spectrum of cytogenetic abnormalities and outcomes in unbalanced offspring of asymptomatic constitutional balanced t(9;22) carriers through a systematic literature review. We also include a case of a constitutional balanced t(9;22) carrier from our institution. Among the 16 balanced t(9;22) carriers in our review, 13 were maternal and 3 were paternal. Of the 15 unbalanced translocation cases identified, 13 were live births, one was a missed abortion, and one resulted in pregnancy termination. The spectrum of established syndromes reported among the live births was the following: trisomy 9p syndrome (6/13), dual trisomy 9p and DiGeorge syndrome (3/13), dual 9q subtelomere deletion syndrome and DiGeorge syndrome (1/13), 9q subtelomere deletion syndrome (1/13), and DiGeorge syndrome (1/13). One unbalanced case did not have a reported syndrome. The phenotype of the unbalanced cases included cardiac abnormalities (5/13), neurological findings (7/13), intellectual disability (6/10), urogenital anomalies (3/13), respiratory or immune dysfunction (3/13), and facial or skeletal dysmorphias (13/13). Any constitutional balanced reciprocal t(9;22) carrier should be counseled regarding the increased risk of having a child with an unbalanced translocation, the spectrum of possible cytogenetic abnormalities, and predicted clinical phenotype for the unbalanced derivative.
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Affiliation(s)
- Zimeng Gao
- Department of Obstetrics and Gynecology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, United States
| | - Stephanie M. Rice
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, United States
| | - Sascha Wodoslawsky
- Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, United States
| | - Sara C. Long
- Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, United States
| | - Zi-Xuan Wang
- Department of Pathology, Clinical Cytogenomics, Anatomy, and Cell Biology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, United States
| | - Mehnoosh Torkzaban
- Department of Radiology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, United States
| | - Ana Milena Angarita Africano
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, United States
| | - Jinglan Liu
- Department of Pathology, Clinical Cytogenomics, Anatomy, and Cell Biology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, United States
| | - Huda B. Al-Kouatly
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, United States
- *Correspondence: Huda B. Al-Kouatly,
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3
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Park SJ, Min JY, Kang JS, Yang BG, Hwang SY, Han SH. Chromosomal abnormalities of 19,000 couples with recurrent spontaneous abortions: a multicenter study. Fertil Steril 2022; 117:1015-1025. [PMID: 35216835 DOI: 10.1016/j.fertnstert.2022.01.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To investigate the demographic data and karyotypes of 19,000 couples who experienced recurrent spontaneous abortion (RSA). DESIGN A cross-sectional study of 19,000 couples. SETTING Five hospitals. PATIENT(S) A total of 19,000 couples experiencing RSA. INTERVENTION(S) Not applicable. MAIN OUTCOME MEASURE(S) Cytogenetic analysis of blood lymphocytes. RESULT(S) A total of 844 couples (4.44%) showed chromosomal aberrations in either partner. Females were more likely to have chromosomal aberrations. The mean age of females and males with chromosomal aberrations was younger than that of females and males without chromosomal aberrations. Interestingly, sex and age distribution varied significantly depending on the subtypes of chromosomal aberrations. We detected 324 balanced translocations, including 223 novel ones. They were distributed across all chromosomes; the frequency of balanced translocations decreased according to the numerical order of autosomes (strong negative correlation; r = -0.84). Individuals with balanced translocations were younger than other groups. All 58 inversions, including 25 novel ones, were detected in autosomes; the negative correlation also existed. Thirteen Robertsonian translocations, 5 deletions, and 3 duplications were detected. Six types of Turner variants, triple X mosaicism, and mosaic Down syndrome were detected in females; Klinefelter variants and mosaic XYY syndrome were detected in males. Marker chromosomes at various mosaic levels and 7 different complex chromosomal rearrangements were also observed. CONCLUSION(S) Patients who experienced RSA induced by chromosomal aberrations experienced miscarriages at a younger age. Significant correlations existed between the patients' age or sex and the subtypes of chromosomal aberrations. This study detected several chromosomal abnormalities associated with RSA, including various novel aberrations.
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Affiliation(s)
- Seo-Jin Park
- Department of Laboratory Medicine, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Ji-You Min
- Division of Biotechnology, Invites BioCore Co. Ltd., Yongin, Republic of Korea; Department of Brain and Cognitive Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Jeom-Soon Kang
- Division of Biotechnology, Invites BioCore Co. Ltd., Yongin, Republic of Korea
| | - Byung-Guk Yang
- Division of Biotechnology, Invites BioCore Co. Ltd., Yongin, Republic of Korea
| | - Seung-Yong Hwang
- Division of Biotechnology, Invites BioCore Co. Ltd., Yongin, Republic of Korea; Department of Molecular and Life Science, Hanyang University, Sangnok-gu, Ansan, Gyeonggi-do, Republic of Korea
| | - Sung-Hee Han
- Division of Biotechnology, Invites BioCore Co. Ltd., Yongin, Republic of Korea.
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4
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Cytogenetic analysis of 2959 couples with spontaneous abortion and detailed analysis of rare karyotypes. J Genet 2022. [DOI: 10.1007/s12041-021-01347-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Dutta M, Mahanta P, Basumatary B, Konwar R. A Case-Control Study on Chromosomal Anomalies in Parents Experiencing Repeated Spontaneous Abortions From Northern India. Cureus 2021; 13:e19819. [PMID: 34853771 PMCID: PMC8608847 DOI: 10.7759/cureus.19819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2021] [Indexed: 11/29/2022] Open
Abstract
Objectives Many women lose their fetuses through miscarriage due to a variety of causes. The incidence of three or more consecutive pregnancy losses is often classified as repeated spontaneous abortion (RSA) and is considered the most frustrating and complex area in reproductive medicine. Parental chromosomal abnormalities, underlying medical condition, heritable or acquired thrombophilias, immunologic abnormalities, infections, and environmental factors are reported to be possible etiologies responsible for RSA. Gametes with unbalanced chromosomes, which are formed when abnormalities exist in parent chromosomes, are one such cause and are responsible for about 50-60% of first-trimester pregnancy loss. This paper aims to identify whether there is an association between chromosomal anomalies in parents and RSA. Method A case-control study was performed on a total sample size of 600 individuals, including 150 couples with a history of RSA and 150 fertile couples as control. The participants were cytogenetically analyzed using G-banding. Associations between variables were tested using Chi-square and Fisher’s exact test (a p-value<0.05 was considered significant). Informed consent from participants and institutional ethical clearance was obtained before the research began. Results Chromosomal anomalies were detected in 21 individuals (7%) with a history of RSA. Female preponderance was observed with a female to male ratio of 2.5:1. Structural chromosomal aberrations (SCAs) were detected in 17 patients, with nine (53%) cases showing balanced reciprocal translocation (involving chromosomes 1,3,6,8,12,13,15,16,18,22 and X) and three (17.65%) cases of Robertsonian translocation (exclusively in males). Mosaicism was observed in four (19.05%) cases. A statistically significant positive association (p-value <0.05) was observed between the presence of parental chromosomal anomalies and RSA. Conclusion These results support an association between RSA and parental chromosomal abnormalities. Currently, clinicians treating cases of RSA face challenging clinical conditions. Identifying a cytogenetic cause for RSA may be of great help to clinicians who manage affected couples.
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Affiliation(s)
| | - Putul Mahanta
- Forensic Medicine and Toxicology, Assam Medical College and Hospital, Dibrugarh, IND
| | - Bharati Basumatary
- Radiology, Fakhruddin Ali Ahmed Medical College (FAAMC) and Hospital, Barpeta, IND
| | - Ranjumoni Konwar
- Radiology, Fakhruddin Ali Ahmed Medical College (FAAMC) and Hospital, Barpeta, IND
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6
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Li S, Chen M, Zheng PS. Analysis of parental abnormal chromosomal karyotype and subsequent live births in Chinese couples with recurrent pregnancy loss. Sci Rep 2021; 11:20298. [PMID: 34645840 PMCID: PMC8514512 DOI: 10.1038/s41598-021-98606-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 09/01/2021] [Indexed: 11/29/2022] Open
Abstract
The frequency and distribution of chromosomal abnormalities and the impact of parental chromosomal aberration on the pregnancy outcomes of couples with recurrent pregnancy loss remains controversial. 3235 RPL couples who experienced two or more miscarriages before 20 weeks were diagnosed in our tertiary referral hospital during 2008–2018 and included in the single-center retrospective cohort study covering a 10-year period. Chromosome aberration was detected in 121 (3.74%) among 3235 RPL couples which included 75 female and 46 male cases at an individual level. 101 cases were structural aberrations including balanced translocations in 46(38.0%) cases, Robertsonian translocations in 13(10.7%) cases, inversions in 42(34.7%) cases and 20(16.5%) cases were numerical aberrations. 121 carriers and 428 non-carriers were followed up for two years, 55 carriers and 229 non-carriers were subsequent pregnant after diagnosis by natural conception or intrauterine insemination. The frequency of carriers to have a health newborn was not significantly different with non-carriers (72.7% vs. 71.2%, adjusted P = 0.968). This study described the majority of carriers were balanced translocations and chromosome aberrations had a limited influence on live birth rate from the present data. The results of the study also remind us that natural conception may be also a good alternative rather than PGD (Pre-implantation Genetic Diagnosis) which is common in many other reproductive centers for such patients.
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Affiliation(s)
- Shan Li
- Department of Reproductive Medicine, The First Affiliated Hospital of the Medical College, Xi'an Jiaotong University, 76 West Yanta Road, Xi'an, 710061, Shaanxi Province, People's Republic of China
| | - Mei Chen
- Department of Reproductive Medicine, The First Affiliated Hospital of the Medical College, Xi'an Jiaotong University, 76 West Yanta Road, Xi'an, 710061, Shaanxi Province, People's Republic of China
| | - Peng-Sheng Zheng
- Department of Reproductive Medicine, The First Affiliated Hospital of the Medical College, Xi'an Jiaotong University, 76 West Yanta Road, Xi'an, 710061, Shaanxi Province, People's Republic of China. .,Section of Cancer Stem Cell Research, Key Laboratory of Environment and Genes Related To Diseases, Ministry of Education of the People's Republic of China, Xi'an, 710061, Shaanxi, People's Republic of China.
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Soltani N, Mirzaei F, Ayatollahi H. Cytogenetic Studies of 608 Couples with Recurrent Spontaneous Abortions in Northeastern Iran. IRANIAN JOURNAL OF PATHOLOGY 2021; 16:418-425. [PMID: 34567191 PMCID: PMC8463753 DOI: 10.30699/ijp.2021.521514.2554] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 06/09/2021] [Indexed: 11/22/2022]
Abstract
Background & Objective: One of the major genetic causes of recurrent spontaneous abortions is parental chromosomal abnormalities. The objectives of the study were to determine, compare and analyze the incidence and distribution of chromosomal abnormalities in couples with recurrent miscarriages from Northeastern Iran. Methods: This study was conducted at Ghaem Hospital, Mashhad, Iran. We evaluated karyotype results of 608 couples with history of recurrent spontaneous abortion. The standard method was used for culturing peripheral venous blood lymphocytes. Results: Chromosome aberrations were detected in 43 patients (3.54%), including 25 females and 18 males. Structural chromosomal abnormality was detected in 40 cases, including balanced translocations (25 cases), robertsonian translocations (4 cases), inversions (10 cases) and numerical chromosome aberrations (3 cases). Polymorphic variants were observed in 22 individuals. Conclusion: The frequency of chromosomal abnormalities in couples with Recurrent Spontaneous Abortion (RSA) in our study is 3.54%. Reciprocal translocation, pericentric inversions, robertsonian translocations, and numerical abnormality observed among couples who had experienced recurrent spontaneous abortions and that these couples might benefit from cytogenetic analysis.
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Affiliation(s)
- Narjes Soltani
- Department of Hematology and Blood Bank, Faculty of Medicine, Cancer Molecular Pathology Research Center, Ghaem Medical Center Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farzaneh Mirzaei
- Medical Genetic Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Ayatollahi
- Department of Hematology and Blood Bank, Faculty of Medicine, Cancer Molecular Pathology Research Center, Ghaem Medical Center Mashhad University of Medical Sciences, Mashhad, Iran.,Medical Genetic Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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8
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Vafaeie F, Ale Rasoul M, Rahnama M, Mojarrad M. Identification of Balanced and Unbalanced Complex Chromosomal Rearrangement Involving Chromosomes 1, 11, and 15. Cureus 2021; 13:e16166. [PMID: 34367776 PMCID: PMC8330808 DOI: 10.7759/cureus.16166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2021] [Indexed: 11/23/2022] Open
Abstract
Chromosomal abnormalities are the common genetic factors that significantly impact fertility, miscarriage possibility and abnormal offspring with unbalanced karyotype. Complex chromosomal rearrangements (CCRs) refer to structural rearrangements which involve more than two breakpoints and often more than two chromosomes. According to the mode of transmission, they can be either familial or de novo rearrangements. Here we report a complex chromosomal rearrangement leading to intellectual disability, speech delay and multiple dysmorphic features, including cleft lip and inguinal hernia. Proband karyotype shows 46,XY,ins (1::11) (q42→qter::q25) compatible to partial trisomy 1 q42→qter, while the karyotype of his mother was 45,XX, ins (1::15) (q42;q11.1→qter), t (1;11)(q42,q25) compatible to apparently normal female phenotype.
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Affiliation(s)
- Farzane Vafaeie
- Medical Genetics Laboratory, Genetic Foundation of Khorasan Razavi, Mashhad, IRN
| | - Masoume Ale Rasoul
- Medical Genetics Laboratory, Genetic Foundation of Khorasan Razavi, Mashhad, IRN.,Department of Medical Genetics, Mashhad University of Medical Sciences, Mashhad, IRN
| | - Maryam Rahnama
- Medical Genetics Laboratory, Genetic Foundation of Khorasan Razavi, Mashhad, IRN
| | - Majid Mojarrad
- Medical Genetics Laboratory, Genetic Foundation of Khorasan Razavi, Mashhad, IRN.,Department of Medical Genetics, Mashhad University of Medical Sciences, Mashhad, IRN.,Genetic Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, IRN
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9
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Liu Y, Sun T, Jiang R, Chen R, Liu X, Chen Q, Song G. Effects of chromosomal abnormalities on pregnancy outcomes in female undergoing artificial insemination with donor's sperm. Medicine (Baltimore) 2021; 100:e26072. [PMID: 34087851 PMCID: PMC8183788 DOI: 10.1097/md.0000000000026072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 04/25/2021] [Indexed: 01/04/2023] Open
Abstract
This study aimed to evaluate the clinical characteristics, pregnancy outcomes and prognostic factors for pregnancy of female with chromosomal abnormalities (CAs) after artificial insemination with donor's sperm (AID) treatment.A retrospective case-control study was analyzed by using the data of 29 female patients with CA and 116 controlled patients with normal karyotype (1:4 ratio) who underwent AID cycles at Guangdong Family Planning Special Hospital from January 2011 to December 2017. In all cases, reproductive histories were collected, and the cytogenetic analysis was performed by Trypsin-Giemsa banding and karyotyping. The embryos were fertilized via intracervical or intrauterine insemination. Clinical characteristic variables were compared.The prevalence of CA was found to be 0.29% in the whole AID population. The live birth rates of CA group and controlled group were 41.4% and 31.0% (P = .29) respectively. Compared to normal karyotype group, patients with CA showed higher rate of primary infertility (93.1% vs 75.9%, P = .049); Multivariate analysis demonstrated that ovarian stimulation (odds ratio, 3.055; 95% confidence interval, 1.421-6.568; P = .004) was associated with adverse pregnancy outcomes in female patients with AID treatment.For the infertility CA patients who were phenotypically normal, AID was a suitable choice, whereas ovarian stimulation results in an improvement in the pregnancy rate.
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Affiliation(s)
- Yu Liu
- Family Planning Research Institute of Guangdong Province
- Family Planning Special Hospital of Guangdong Province
- NHC Key Laboratory of Male Reproduction and Genetics
| | - Tingting Sun
- Department of Gynecology, Sun Yat-sen University First Affiliated Hospital, Guangzhou, China
| | - Ronghua Jiang
- Family Planning Research Institute of Guangdong Province
- Family Planning Special Hospital of Guangdong Province
- NHC Key Laboratory of Male Reproduction and Genetics
| | - Ruiling Chen
- Family Planning Research Institute of Guangdong Province
- Family Planning Special Hospital of Guangdong Province
- NHC Key Laboratory of Male Reproduction and Genetics
| | - Xiaoling Liu
- Family Planning Research Institute of Guangdong Province
- Family Planning Special Hospital of Guangdong Province
- NHC Key Laboratory of Male Reproduction and Genetics
| | - Qiao Chen
- Family Planning Research Institute of Guangdong Province
- Family Planning Special Hospital of Guangdong Province
- NHC Key Laboratory of Male Reproduction and Genetics
| | - Ge Song
- Family Planning Research Institute of Guangdong Province
- Family Planning Special Hospital of Guangdong Province
- NHC Key Laboratory of Male Reproduction and Genetics
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10
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Wan X, Li L, Liu Z, Fan Z, Yu L. Recurrent spontaneous abortion related to balanced translocation of chromosomes: two case reports. J Med Case Rep 2021; 15:270. [PMID: 34024271 PMCID: PMC8142492 DOI: 10.1186/s13256-021-02848-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 04/04/2021] [Indexed: 02/06/2023] Open
Abstract
Background Recurrent spontaneous abortion (RSA) is often idiopathic, but structural chromosomal abnormality is an important nosogenesis. Balanced translocations or inversions can lead to unbalanced gametes depending on the specific recombination and segregation patterns during meiosis. An unbalanced karyotype in the conceptus of a couple when one partner has a structural chromosomal abnormality may result in failure to implant, miscarriage, or ongoing pregnancy of a fetus with an unbalanced karyotype. Case presentation We report two rare Han cases of RSA associated with balanced translocation of chromosomes. In case 1, a women who had had four spontaneous abortions, the karyotype was 46, XX, t (4;7) (q31;q22). In case 2, a women who had two spontaneous abortions and one stillborn fetus, the karyotype was 46, XX, t (3;15) (q12;p11.2), inv (5) (P13q13). The abnormal karyotype was not found in other chromosomes. Conclusions It is very important that couples with more than two miscarriages be provided with chromosomal analysis. Referring couples for karyotyping will rule out or confirm possible hereditary etiology and the source of chromosomal abnormalities in recurrent miscarriages.
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Affiliation(s)
- Xue Wan
- Key Laboratory of Cell Engineering in Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, Guizhou, China.,The Engineering Research Center of Zunyi Precision Medical Detection and Birth Defects Prevention and Control, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, Guizhou, China
| | - Linyan Li
- Key Laboratory of Cell Engineering in Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, Guizhou, China.,Guizhou Provincial Sub-center for Prenatal Diagnosis, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, Guizhou, China
| | - Zulin Liu
- Key Laboratory of Cell Engineering in Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, Guizhou, China
| | - Zhenhai Fan
- Key Laboratory of Cell Engineering in Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, Guizhou, China.,Guizhou Provincial Sub-center for Prenatal Diagnosis, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, Guizhou, China
| | - Limei Yu
- Key Laboratory of Cell Engineering in Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, Guizhou, China. .,Guizhou Provincial Sub-center for Prenatal Diagnosis, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, Guizhou, China.
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11
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Blyth U, Craciunas L, Hudson G, Choudhary M. Maternal germline factors associated with aneuploid pregnancy loss: a systematic review. Hum Reprod Update 2021; 27:866-884. [PMID: 33969392 DOI: 10.1093/humupd/dmab010] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 03/02/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Miscarriage describes the spontaneous loss of pregnancy before the threshold of viability; the vast majority occur before 12 weeks of gestation. Miscarriage affects one in four couples and is the most common complication of pregnancy. Chromosomal abnormalities of the embryo are identified in ∼50% of first trimester miscarriages; aneuploidy accounts for 86% of these cases. The majority of trisomic miscarriages are of maternal origin with errors occurring during meiotic division of the oocytes. Chromosome segregation errors in oocytes may be sporadic events secondary to advancing maternal age; however, there is increasing evidence to suggest possible maternal germline contributions to this. OBJECTIVE AND RATIONALE The objective of this review was to appraise critically the existing evidence relating to maternal germline factors associated with pregnancy loss secondary to embryo aneuploidy, identify limitations in the current evidence base and establish areas requiring further research. SEARCH METHODS The initial literature search was performed in September 2019 and updated in January 2021 using the electronic databases OVID MEDLINE, EMBASE and the Cochrane Library. No time or language restrictions were applied to the searches and only primary research was included. Participants were women who had suffered pregnancy loss secondary to numerical chromosomal abnormalities of the embryo. Study identification and subsequent data extraction were performed by two authors independently. The Newcastle-Ottawa Scale was used to judge the quality of the included studies. The results were synthesized narratively. OUTCOMES The literature search identified 2198 titles once duplicates were removed, of which 21 were eligible for inclusion in this systematic review. They reported on maternal germline factors having variable degrees of association with pregnancy loss of aneuploid origin. The Online Mendelian Inheritance in Man (OMIM) gene ontology database was used as a reference to establish the functional role currently attributed to the genes reported. The majority of the cases reported and included were secondary to the inheritance of maternal structural factors such as Robertsonian translocations, deletions and insertions. Germline factors with a plausible role in aneuploid pregnancy loss of maternal origin included skewed X-inactivation and CGG repeats in the fragile X mental retardation (FMR1) gene. Studies that reported the association of single gene mutations with aneuploid pregnancy loss were conflicting. Single gene mutations with an uncertain or no role in aneuploid pregnancy loss included mutations in synaptonemal complex protein 3 (SYCP3), mitotic polo-like kinase 4 (PLK4) and meiotic stromal antigen 3 (STAG3) spindle integrity variants and 5,10-methylenetetrahydrofolate reductase (MTHFR). WIDER IMPLICATIONS Identifying maternal genetic factors associated with an increased risk of aneuploidy will expand our understanding of cell division, non-disjunction and miscarriage secondary to embryo aneuploidy. The candidate germline factors identified may be incorporated in a screening panel for women suffering miscarriage of aneuploidy aetiology to facilitate counselling for subsequent pregnancies.
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Affiliation(s)
- Ursula Blyth
- Newcastle Fertility Centre at Life, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Laurentiu Craciunas
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Gavin Hudson
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Meenakshi Choudhary
- Newcastle Fertility Centre at Life, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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12
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Li R, Wang J, Gu A, Xu Y, Guo J, Pan J, Zeng Y, Ma Y, Zhou C, Xu Y. Feasibility study of using unbalanced embryos as a reference to distinguish euploid carrier from noncarrier embryos by single nucleotide polymorphism array for reciprocal translocations. Prenat Diagn 2021; 41:681-689. [PMID: 33411373 DOI: 10.1002/pd.5897] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 12/24/2020] [Accepted: 12/30/2020] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To study the feasibility of using unbalanced embryos as a reference in distinguishing euploid carrier and noncarrier embryos by single nucleotide polymorphism (SNP) array-based preimplantation genetic testing (PGT) for reciprocal translocations. METHODS After comprehensive chromosome screening (CCS), euploid embryos were identified as normal or carriers using a family member as a reference. Next, unbalanced embryos were used as a reference, and the results were compared with the previous ones. Karyotypes of transferred embryos were validated by prenatal diagnosis. RESULTS Of 995 embryos from 110 couples, 288 were found to be euploid. Using a family member as a reference, 142 and 144 embryos were tested to be euploid noncarrier and carrier respectively, and the remaining 2 embryos were undetermined. When unbalanced embryos were selected as references, all the results were consistent with the previous ones. A total of 107 embryos were transferred, resulting in 66 clinical pregnancies. Karyotypes of prenatal diagnosis were all in accordance with the results of tested embryos. CONCLUSIONS SNP array-based haplotyping is a rapid and effective way to distinguish between euploid carrier and noncarrier embryos. In case no family member is available as a reference, unbalanced embryos can be used for identification of euploid carrier and noncarrier embryos.
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Affiliation(s)
- Rong Li
- Reproductive Medicine Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, China
| | - Jing Wang
- Reproductive Medicine Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, China
| | - Ailing Gu
- Department of Cardiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yan Xu
- Reproductive Medicine Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, China
| | - Jing Guo
- Reproductive Medicine Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, China
| | - Jiafu Pan
- Reproductive Medicine Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, China
| | - Yanhong Zeng
- Reproductive Medicine Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, China
| | - Yuanlin Ma
- Reproductive Medicine Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, China
| | - Canquan Zhou
- Reproductive Medicine Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, China
| | - Yanwen Xu
- Reproductive Medicine Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, China
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Zhang J, Zhang B, Liu T, Xie H, Zhai J. Partial trisomy 4q and monosomy 5p inherited from a maternal translocationt(4;5)(q33; p15) in three adverse pregnancies. Mol Cytogenet 2020; 13:26. [PMID: 32625247 PMCID: PMC7329393 DOI: 10.1186/s13039-020-00492-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 06/08/2020] [Indexed: 11/17/2022] Open
Abstract
Background Carriers of balanced reciprocal chromosomal translocations are at known reproductive risk for offspring with unbalanced genotypes and resultantly abnormal phenotypes. Once fertilization of a balanced translocation gamete with a normal gamete, the partial monosomy or partial trisomy embryo will undergo abortion, fetal arrest or fetal malformations. We reported a woman with chromosomal balanced translocation who had two adverse pregnancies. Prenatal diagnosis was made for her third pregnancy to provide genetic counseling and guide her fertility. Case presentation We presented a woman with chromosomal balanced translocation who had three adverse pregnancies. Routine G banding and CNV-seq were used to analyze the chromosome karyotypes and copy number variants of amniotic fluid cells and peripheral blood. The karyotype of the woman was 46,XX,t(4;5)(q33;p15). During her first pregnancy, odinopoeia was performed due to fetal edema and abdominal fluid. The umbilical cord tissue of the fetus was examined by CNV-seq. The results showed a genomic gain of 24.18 Mb at 4q32.3-q35.2 and a genomic deletion of 10.84 Mb at 5p15.2-p15.33 and 2.36 Mb at 15q11.1-q11.2. During her second pregnancy, she did not receive a prenatal diagnosis because a routine prenatal ultrasound examination found no abnormalities. In 2016, she gave birth to a boy. The karyotype the of the boy was 46,XY,der(5)t(4;5)(q33;p15)mat. The results of CNV-seq showed a deletion of short arm of chromosome 5 capturing regions 5p15.2-p15.33, a copy gain of the distal region of chromosome 4 at segment 4q32.3q35.2, a duplication of chromosome 1 at segment 1q41q42.11 and a duplication of chromosome 17 at segment 17p12. During her third pregnancy, she underwent amniocentesis at 17 weeks of gestation. Chromosome karyotype hinted 46,XY,der(5)t(4;5)(q33;p15)mat. Results of CNV-seq showed a deletion of short arm (p) of chromosome 5 at the segment 5p15.2p15.33 and a duplication of the distal region of chromosome 4 at segment 4q32.3q35.2. Conclusions Chromosomal abnormalities in three pregnancies were inherited from the mother. Preimplantation genetic diagnosis is recommended to prevent the birth of children with chromosomal abnormalities.
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Affiliation(s)
- Jingbo Zhang
- Department of Prenatal Diagnosis Medical Center of Xuzhou Central Hospital, Xuzhou Clinical Schools of Xuzhou Medical University and Nanjing Medical University, 199 South Jiefang Road, Xuzhou, 221009 Jiangsu China
| | - Bei Zhang
- Department of Prenatal Diagnosis Medical Center of Xuzhou Central Hospital, Xuzhou Clinical Schools of Xuzhou Medical University and Nanjing Medical University, 199 South Jiefang Road, Xuzhou, 221009 Jiangsu China
| | - Tong Liu
- Department of Prenatal Diagnosis Medical Center of Xuzhou Central Hospital, Xuzhou Clinical Schools of Xuzhou Medical University and Nanjing Medical University, 199 South Jiefang Road, Xuzhou, 221009 Jiangsu China
| | - Huihui Xie
- Department of Prenatal Diagnosis Medical Center of Xuzhou Central Hospital, Xuzhou Clinical Schools of Xuzhou Medical University and Nanjing Medical University, 199 South Jiefang Road, Xuzhou, 221009 Jiangsu China
| | - Jingfang Zhai
- Department of Prenatal Diagnosis Medical Center of Xuzhou Central Hospital, Xuzhou Clinical Schools of Xuzhou Medical University and Nanjing Medical University, 199 South Jiefang Road, Xuzhou, 221009 Jiangsu China
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14
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Chen YC, Huang XN, Kong CY, Hu JD. Six families with balanced chromosome translocation associated with reproductive risks in Hainan Province: Case reports and review of the literature. World J Clin Cases 2020; 8:222-233. [PMID: 31970191 PMCID: PMC6962080 DOI: 10.12998/wjcc.v8.i1.222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 11/28/2019] [Accepted: 12/13/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Balanced translocation refers to the process where breakage and reconnection of chromosomes occur at abnormal positions. As the genetic substance with balanced translocation in individuals does not change, which is usually characterized by normal phenotype and intelligence, the individuals seek medical service after many miscarriages, resulting in considerable mental and physical burdens of the family members. In the current era with rapid advances in detection technology, cytogenetic examination, as a definitive approach, still plays an essential role.
CASE SUMMARY We report six cases with balanced chromosome translocation: Case 1: 46,XY,t(3;12)(q27;q24.1), infertility after 3 years of marriage; Case 2: 46,XX,t(4;16)(q31;q12), small uterus and irregular menstruation; Case 3: 46,XY,t(4;5)(q33;q13),9qh+, not pregnant after arrested fetal development; Case 4: 46,XX,t(11;17)(q13;p11.2), not pregnant after two times of spontaneous abortion; Case 5: 46,XX,t(10;13)(q24;q21.2), not pregnant after arrested fetal development for once; Case 6: 46,XX,t(1;4)(p36.1;q31.1), not pregnant after arrested fetal development for two times. The first four cases had chromosomal aberration karyotypes.
CONCLUSION These results suggested that balanced chromosomal translocation carriers are associated with reproductive risks and a very high probability of abnormal pregnancy. The discovery of the first four reported chromosomal aberration karyotypes provides an important basis for studying the occurrence of genetic diseases.
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Affiliation(s)
- Yun-Chun Chen
- Department of Laboratory Medicine, Haikou Branch of Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine (Haikou Hospital of Traditional Chinese Medicine), Haikou 570300, Hainan Province, China
| | - Xu-Ning Huang
- Department of Ultrasound Medicine, Second Affiliated Hospital of Hainan Medical University, Haikou 570300, Hainan Province, China
| | - Chang-Ying Kong
- Department of Gynecology, Second Affiliated Hospital of Hainan Medical University, Haikou 570300, Hainan Province, China
| | - Jian-Dong Hu
- Department of Internal Medicine, Haikou Branch of Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine (Haikou Hospital of Traditional Chinese Medicine), Haikou 570300, Hainan Province, China
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15
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Wang R, Yu Y, Wang Q, Jiang Y, Li L, Zhu H, Liu R, Zhang H. Clinical Features of Infertile Men Carrying a Chromosome 9 Translocation. Open Med (Wars) 2019; 14:854-862. [PMID: 31737790 PMCID: PMC6843491 DOI: 10.1515/med-2019-0100] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 09/18/2019] [Indexed: 11/30/2022] Open
Abstract
Previous studies indicated that chromosome 9 translocations are involved in reduced male fertility and increased chance of miscarriage in the female partner. The aim of this study was to review the clinical features and genetic counselling requirements of infertile men carrying chromosome 9 translocations. This study analyzed fertile-age male carriers of chromosome 9 translocations, and included 12 clinical cases in our hospital. In our cases, three cases had oligozoospermia or severe oligozoospermia, while nine cases had normal semen. Of the latter nine cases, seven were associated with recurrent spontaneous abortions, and two produced a phenotypically normal child as confirmed by amniocentesis. Male chromosome 9 translocations and specific breakpoints from reported papers were searched using PubMed and CNKI database. A literature review identified 76 male patients who carried chromosome 9 translocations. Breakpoints at 9p12, 9p11, 9p10 and 9q34.1 were related to pregestational infertility, while breakpoints at 9p21, 9q10, 9q11, 9q13, 9q21.1, 9q22, 9q22.2, 9q22.3, 9q34, 9q34.2 and 9q34.3 exhibited gestational infertility. Chromosome translocations involving chromosome 9 lead to increased risk of miscarriage. Carriers of chromosome 9 translocations should be counselled to consider in vitro fertilization accompanied by preimplantation genetic diagnosis.
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Affiliation(s)
- Ruixue Wang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021, China
| | - Yang Yu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021, China
| | - Qiyuan Wang
- Experimental School of Changchun Jida Middle School, Changchun, China
| | - Yuting Jiang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021, China
| | - Linlin Li
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021, China
| | - Haibo Zhu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021, China
| | - Ruizhi Liu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021, China
| | - Hongguo Zhang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021, China
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Lovrečić L, Pereza N, Jaklič H, Ostojić S, Peterlin B. Combination of QF-PCR and aCGH is an efficient diagnostic strategy for the detection of chromosome aberrations in recurrent miscarriage. Mol Genet Genomic Med 2019; 7:e980. [PMID: 31643138 PMCID: PMC6900363 DOI: 10.1002/mgg3.980] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 08/12/2019] [Accepted: 08/29/2019] [Indexed: 11/30/2022] Open
Abstract
Background Our aim was to conduct a comprehensive genetic evaluation using the combination of QF‐PCR (quantitative fluorescence polymerase chain reaction) and aCGH (array comparative genomic hybridization) for the detection of the frequency and type of chromosome aberrations in recurrent miscarriage (RM) in the clinical setting. Methods This retrospective study was conducted on 73 first‐trimester products of conception (POC) between September 2014 and February 2017. The POCs were collected from 73 women with at least one previous miscarriage and analyzed for chromosomal anomalies using QF‐PCR and aCGH as part of the routine clinical evaluation. Results Chromosome aberrations were detected in 52/73 POCs (71.2%), of which 41 (56.2%) were identified by QF‐PCR and an additional 11 (15.1%) by aCGH. Numerical aberrations constituted 92.3% of abnormalities, with trisomies as the most common subtype (72.9%). Causative structural aberrations were found in three samples (5.8%). The frequency of chromosome aberrations was not dependent on the number of previous miscarriages, whereas it significantly increased with advanced maternal age. Conclusion Our results confirm that chromosome aberrations are the most common cause of RM and that QF‐PCR and aCGH combination should be included in the routine genetic analysis of POCs of couples with miscarriage.
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Affiliation(s)
- Luca Lovrečić
- Department of Gynaecology and Obstetrics, Clinical Institute of Medical Genetics, University Medical Center Ljubljana, Ljubljana, Slovenia
| | - Nina Pereza
- Faculty of Medicine, Department of Medical Biology and Genetics, University of Rijeka, Rijeka, Croatia
| | - Helena Jaklič
- Department of Gynaecology and Obstetrics, Clinical Institute of Medical Genetics, University Medical Center Ljubljana, Ljubljana, Slovenia
| | - Saša Ostojić
- Faculty of Medicine, Department of Medical Biology and Genetics, University of Rijeka, Rijeka, Croatia
| | - Borut Peterlin
- Department of Gynaecology and Obstetrics, Clinical Institute of Medical Genetics, University Medical Center Ljubljana, Ljubljana, Slovenia
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17
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Shilova NV, Minzhenkova ME, Antonenko VG. Evaluation of Risk Factors for the Birth of Children with Chromosomal Imbalance in Carriers of Autosomal Reciprocal Translocations. RUSS J GENET+ 2019. [DOI: 10.1134/s1022795419090151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Yildirim ME, Karakus S, Kurtulgan HK, Baser B, Sezgin I. The type and prevalence of chromosomal abnormalities in couples with recurrent first trimester abortions: A Turkish retrospective study. J Gynecol Obstet Hum Reprod 2019; 48:521-525. [PMID: 31085277 DOI: 10.1016/j.jogoh.2019.05.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/02/2019] [Accepted: 05/07/2019] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Chromosomal abnormalities are more common in the first trimester abortions. We aimed to investigate the types and prevalence of chromosomal abnormalities in couples with recurrent first trimester miscarriages in Sivas, Turkey. MATERIALS AND MEDHODS Three hundred couples (600 individuals) who had a story of recurrent abortion were included in the study. Chromosome analysis was performed after the preparation of lymphocyte culture with the standard method. Karyotype analyses were supported by FISH and aCGH studies. RESULTS Total 26 chromosome abnormalities (8.7%) were found in the couples (19 females and 7 males). Fifteen cases (57.7%) were structural anomalies and eleven cases (42.3%) were numerical chromosomal aberrations. We detected 5 balanced translocations (33.3%), 4 Robertsonian translocations (26.7%), 3 inversions (20%), 2 duplications (13.3%) and one deletion (6.7%) among the structural anomalies. Mosaic monosomy X in five cases (45.4%), the combination of mosaic monosomy-trisomy X in three cases (27.3%), the combination of mosaic monosomy-trisomy and tetrasomy X in two cases (18.2%) and mosaic pentasomy X in only one individual (9.1%) were encountered as numerical chromosome aberrations. 19 cases had heterochromatic changes or other chromosomal variations (satellite increments and inv9). CONCLUSION Chromosome analysis in couples with recurrent miscarriage is necessary for possible preimplantation genetic diagnosis. As well as numerical and structural chromosome abnormalities, some chromosomal variations (heterochromatin and satellite increments etc.) may also contribute to recurrent miscarriages. Numerical chromosomal abnormalities are often associated with sex chromosomes and usually seen in females.
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Affiliation(s)
- Malik Ejder Yildirim
- Cumhuriyet University, Faculty of Medicine, Department of Medical Genetics, Turkey.
| | - Savas Karakus
- Cumhuriyet University, Faculty of Medicine, Department of Obstetrics and Gynecology, Turkey.
| | | | - Burak Baser
- Cumhuriyet University, Faculty of Medicine, Department of Medical Genetics, Turkey.
| | - Ilhan Sezgin
- Cumhuriyet University, Faculty of Medicine, Department of Medical Genetics, Turkey.
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The Frequency and Spectrum of Chromosomal Translocations in a Cohort of Sri Lankans. BIOMED RESEARCH INTERNATIONAL 2019; 2019:9797104. [PMID: 31061830 PMCID: PMC6466940 DOI: 10.1155/2019/9797104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 02/04/2019] [Accepted: 02/27/2019] [Indexed: 11/17/2022]
Abstract
Translocations are the most common type of structural chromosomal abnormalities. Unbalanced translocations are usually found in children who present with congenital abnormalities, developmental delay, or intellectual disability. Balanced translocations are usually found in adults who frequently present with reproductive failure; either subfertility, or recurrent pregnancy loss. Herein, we report the spectrum and frequency of translocations in a Sri Lankan cohort. A database of patients undergoing cytogenetic testing was maintained prospectively from January 2007 to December 2016 and analyzed, retrospectively. A total of 15,864 individuals were tested. Among them, 277 (1.7%) had translocations. There were 142 (51.3%) unbalanced translocations and 135 (48.7%) balanced translocations. Majority (160; 57.8%) were Robertsonian translocations. There were 145 (52.3%) children and adolescents aged less than 18 years with translocations, and 142 (97.9%) were unbalanced translocations. Majority [138 (95.2%)] were referred due to congenital abnormalities, developmental delay, or intellectual disability, and 91 were children with translocation Down syndrome. All adults aged 18 years or above (132) had balanced translocations. Subfertility and recurrent pregnancy loss [84 (63.6%)] and offspring(s) with congenital abnormalities [48 (36.4%)] were the most common indications in this group. Majority (68.2%) in this group were females with reciprocal translocations (55.3%). Chromosomes 21, 14, and 13 were the most commonly involved with rob(14q21q) [72 (26%)], rob(21q21q) [30 (13.7%)], and rob(13q14q) [34 (12.3%)] accounting for 52% of the translocations. Chromosomes 1, 8, 11, and 18 were most commonly involved in reciprocal translocations. The observed high frequency of chromosomal translocations in our cohort highlights the importance of undertaking cytogenetic evaluation and providing appropriate genetic counseling for individuals with the phenotypes associated with these translocations.
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20
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Kovaleva NV. Homologous Robertsonian Translocations: Spectrum, Sex Ratios, and Reproductive Risks. RUSS J GENET+ 2019. [DOI: 10.1134/s1022795419010095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sak S, Incebiyik A, Hilali NG, Ağaçayak E, Uyanıkoğlu H, Akbas H, Sak ME. Cytogenetic screening in couples with Habitual Abortions. J Gynecol Obstet Hum Reprod 2018; 48:155-158. [PMID: 30412789 DOI: 10.1016/j.jogoh.2018.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/25/2018] [Accepted: 10/31/2018] [Indexed: 10/27/2022]
Abstract
OBJECTIVE Habitual abortion (HA) is defined at least three consecutive pregnancy losses. One of the etiologic causes is parental chromosomal anomalies. In this study, we aimed to that investigate the effect of parental chromosomal abnormalities on HA. METHODS The cytogenetic results of patients with at least three abortions referred to our university hospital between January 2010 - March 2017 were evaluated. A total of 1154 couples with HA were analysed. Peripheral lymphocyte cultures incubated for 72 h were used for karyotype analysis via the Giemsa banding technique. RESULTS Of a total 1154 couples (2308 patients) 37 female (3.2%) and 17 male (1.47%) had abnormal karyotypes. Reciprocal translocation carriage (n = 26; 1.12%) was the most commonly detected structural anomaly, followed by X chromosome mosaicism (n = 16; 0.69%),Robertsoniantranslocation (n = 9; 0.38%), Chromosomal inversion (n = 6; 0.26%). Chromosomal polymorphisms, which are considered minor chromosomal changes, were detected in 221 (9.57%) individuals. CONCLUSION Our study exhibits that chromosomal analysis in patient with HA is an appropriate approach to elucidate the aetiology of HA. Data from cytogenetic screening can be used in guiding couples planning future pregnancies and in prenatal diagnosis of chromosomal anomalies in the foetus.
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Affiliation(s)
- Sibel Sak
- Harran University, Faculty of Medicine, Department of Obstetrics and Gynecology, Sanliurfa, Turkey
| | - Adnan Incebiyik
- Harran University, Faculty of Medicine, Department of Obstetrics and Gynecology, Sanliurfa, Turkey
| | - Nese Gul Hilali
- Harran University, Faculty of Medicine, Department of Obstetrics and Gynecology, Sanliurfa, Turkey
| | - Elif Ağaçayak
- Dicle University, Faculty of Medicine, Department of Obstetrics and Gynecology, Diyarbakır, Turkey.
| | - Hacer Uyanıkoğlu
- Harran University, Faculty of Medicine, Department of Obstetrics and Gynecology, Sanliurfa, Turkey
| | - Halit Akbas
- Harran University, Faculty of Medicine, Department of Medical Biology, Sanliurfa, Turkey
| | - Muhammet Erdal Sak
- Harran University, Faculty of Medicine, Department of Obstetrics and Gynecology, Sanliurfa, Turkey
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Kabessa M, Harlev A, Friger M, Sergienko R, Litwak B, Koifman A, Steiner N, Bashiri A. Pregnancy outcomes among patients with recurrent pregnancy loss and chromosomal aberration (CA) without PGD. J Perinat Med 2018; 46:764-770. [PMID: 28672755 DOI: 10.1515/jpm-2016-0408] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 04/27/2017] [Indexed: 12/14/2022]
Abstract
Abstract
Background:
Recurrent pregnancy loss (RPL) is defined by two or more failed clinical pregnancies. Three to four percent of the couples with RPL have chromosomal aberrations (CA) in at least one partner. The parent’s structural chromosomal abnormalities may cause an unbalanced karyotype in the conceptus which could lead to implantation failure, early or late pregnancy loss, or delivery of a child with severe physical and/or mental disabilities.
Objective:
To compare live birth rates of couples with CA to couples with normal karyotypes and to investigate medical and obstetric characteristics and pregnancy outcomes of couples with CA and RPL who attend an RPL clinic at a tertiary hospital.
Methods:
A retrospective cohort study, including 349 patients with two or more consecutive pregnancy losses. The study group consisted of 52 patients with CA, and the control group consisted of 297 couples with normal karyotype. All patients were evaluated and treated in the RPL clinic at Soroka University Medical Center and had at least one subsequent spontaneous pregnancy.
Results:
The demographic and clinical characteristics were not found to be statistically different between the two groups. The group of carriers of CA had 28/52 (53.8%) live births in their index pregnancy vs. the normal 202/297 (68%) (P=0.067, CI 95%) in the control group. No statistically significant etiology was found between the study group and the control group. A statistically significant difference in live birth rates was found when comparing the total amount of pregnancies [index pregnancy (IP)+post index pregnancy (PIP)] between the study group and the control group (54.16% vs. 67.82%, respectively, P=0.0328).
Conclusion:
Patients with RPL and CA who have spontaneous pregnancies, have a good prognosis (63.4%) of a successful pregnancy with at least one of the pregnancies (index or post index) resulting in a live birth.
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Affiliation(s)
- Maor Kabessa
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Avi Harlev
- Fertility and IVF unit, Department of Obstetrics and Gynecology, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Michael Friger
- Faculty of Health Sciences, Department of Public Health, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Ruslan Sergienko
- Faculty of Health Sciences, Department of Public Health, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Baila Litwak
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Arie Koifman
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Naama Steiner
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Asher Bashiri
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
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Awartani KA, Al Shabibi MS. Description of cytogenetic abnormalities and the pregnancy outcomes of couples with recurrent pregnancy loss in a tertiary-care center in Saudi Arabia. Saudi Med J 2018. [PMID: 29543300 PMCID: PMC5893911 DOI: 10.15537/smj.2018.3.21592] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objectives: To determine the prevalence of chromosomal abnormalities in couples with recurrent pregnancy loss (RPL), to determine other factors that may be associated with the chromosomal abnormalities, and to assess the outcomes of couples who had undergone multidisciplinary interventions according to associated etiological factors. Methods: This retrospective cohort study involved 1074 couples who attended RPL clinic during an 11-year period from January 2006 to December 2016 at a single center, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia. All of the couples had undergone complete RPL evaluations and were closely monitored and managed during pregnancy. Results: Out of the 1074 couples, 77 (7.2%) carried some form of chromosomal abnormality, and the female (48, 62.3%) patients were affected more frequently than the male (29, 37.3%) patients. Out of the 77 cases with chromosomal abnormalities, 46.8% had reciprocal translocations, 10.3% had Robertsonian translocations, and 3.9% had complex structural abnormalities. Inversions had occurred in 14.3% and chromosomal additions had occurred in 2.6% of the patients. Isolated chromosomal abnormalities were detected in 25 out of 77 (32.5%) couples. The couples were closely followed, and 67% of the subsequent pregnancies resulted in live births. Conclusion: This study’s findings provide an insight into the prevalence of chromosomal abnormalities in couples with RPL in our region and the factors that may be associated with RPL. This information will help to ensure the required resources are provided to care for these patients.
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Affiliation(s)
- Khalid A Awartani
- Department of Obstetrics and Gynecology, King Faisal Specialist Hospital and Research Center, Riyadh, Kingdom of Saudi Arabia. E-mail.
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Zhang X, Zhang H, Hu C, Wang R, Xi Q, Liu R. Clinical features of carriers of reciprocal chromosomal translocations involving chromosome 2: report of nine cases and review of the literature. Int Braz J Urol 2018; 44:785-793. [PMID: 29219278 PMCID: PMC6092653 DOI: 10.1590/s1677-5538.ibju.2017.0233] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 09/06/2017] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To explore the clinical features of carriers of chromosome 2 translocations, enabling informed genetic counseling of these patients. MATERIALS AND METHODS Eighty-two male carriers of a translocation who were infertile or receiving fertility counseling were recruited. Cytogenetic analyses were performed using G-banding. A search of PubMed was performed to determine whether the identified translocations on chromosome 2 are involved in male infertility. The relationships of translocation breakpoints with male infertility and recurrent pregnancy loss were analyzed. RESULTS Of the 82 translocation carriers, 9 (11%) were carriers of a chromosome 2 translocation. Four cases had oligozoospermia or infertility, while five had normal semen. In an analysis of the literature, 55 patients who were carriers of chromosome 2 translocations were also reviewed. Breakpoints at 2p13 and 2q31 were observed in six patients each, and were the most common. Breakpoints at 2p23, 2p13, 2p11.2, 2q31, and 2q37 were associated to both pre-gestational and gestational infertility, while other breakpoints were associated with gestational infertility. CONCLUSIONS All breakpoints at chromosome 2 were correlated with gestational infertility. Carriers of chromosome 2 translocations should therefore receive counseling to continue with natural conception and use of different technologies available via assisted reproductive technology, such as preimplantation genetic diagnosis.
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Affiliation(s)
- Xinyue Zhang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, China
| | - Hongguo Zhang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, China
| | - Cong Hu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, China
| | - Ruixue Wang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, China
| | - Qi Xi
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, China
| | - Ruizhi Liu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, China
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Yang X, Zhang H, Yu Y, Zhu H, Hu X, Jiang Y, Wang R, Liu R. Clinical Features of Chromosome 6 Translocation in Male Carriers: A Report of 10 Cases and Review of the Literature. Med Sci Monit 2018; 24:4162-4168. [PMID: 29911662 PMCID: PMC6038718 DOI: 10.12659/msm.911170] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 06/06/2018] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The literature indicates that chromosome 6 is involved in balanced translocation and is involved in reproductive failure. This aim of this study was to explore the clinical features of chromosome 6 translocation in male carriers. MATERIAL AND METHODS We identified 10 patients who were carriers of chromosome 6 translocations and excluded the patients with varicocele, ejaculatory duct obstruction, and the other cause of infertility. The karyotype was analyzed using G-banding. A search for translocations on chromosome 6 involved in male infertility was performed using PubMed. We included cases of balanced chromosome 6 translocations involving adult men of fertile age and excluded those cases of live-born children, or those without breakpoints involving chromosome 6, or those with complex chromosomal translocations or chimeras. RESULTS All 10 patients underwent genetic counseling for infertility. Semen analysis showed that 1 case had azoospermia, while 9 cases exhibited normal semen criteria. The respective partners of the 9 cases with normal semen parameters had a tendency to miscarry: 3 experienced spontaneous and induced abortion because of abnormal embryos; 3 experienced 3 incidents of spontaneous abortion, 2 experienced double spontaneous abortion, and 1 experienced biochemical pregnancy on 3 occasions. Most of the chromosome 6 breakpoints in translocation carriers obtained by the PubMed search were associated with spontaneous abortion. CONCLUSIONS Chromosome translocations involving chromosome 6 influence fertility status and lead to increased risk of miscarriage. Cytogenetic screening before opting for assisted reproductive technology and the breakpoints of chromosome 6 translocation should be considered for infertile male carriers.
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Marqui ABTD. Chromosomal abnormalities in recurrent miscarriages by conventional karyotyping analysis. REVISTA BRASILEIRA DE SAÚDE MATERNO INFANTIL 2018. [DOI: 10.1590/1806-93042018000200002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract Objectives: to describe the prevalence and types of chromosomal abnormalities in couples with recurrent miscarriage and products of conception. Methods: electronic searches were performed in the PubMed/Medline database and in the Portal Regional da Biblioteca Virtual em Saúde/BVS (Regional Website of the Virtual Library in Health/BVS) using the descriptors “chromosomal abnormalities and abortions and prevalence”. After applying the inclusion and exclusion criterias, 17 studies were selected. Results: 11 studies were conducted in couples with recurrent miscarriage and six in products of conception. The main results of the couples with recurrent miscarriage were: the frequency of chromosomal abnormalities which varied from 1.23% to 12% and there was a predominance alteration of the chromosomal structures (reciprocal translocations, followed by Robertsonian). In products of conception, the results observed were: the frequency of chromosomal abnormality was above 50% in approximately 70% of the studies; there was a predominance alteration of the numerical chromosomal (trisomy - chromosomes 16, 18, 21 and 22, followed by polyploidy and monosomy X). Conclusions: in summary, cytogenetic alterations represent an importante cause of pregnancy loss and its detection can help couples with genetic counseling. Therefore, the value of knowledge on the prevalence of cytogenetic abnormalities in miscarriage samples is unquestionable, once it is permitted a proper genetic counseling for the couple.
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Kovaleva NV. Examination of Rates and Spectrums of Robertsonian Translocations in the General Population and in Patients with Reproductive Disorders. RUSS J GENET+ 2018. [DOI: 10.1134/s1022795418040099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Iews M, Tan J, Taskin O, Alfaraj S, AbdelHafez FF, Abdellah AH, Bedaiwy MA. Does preimplantation genetic diagnosis improve reproductive outcome in couples with recurrent pregnancy loss owing to structural chromosomal rearrangement? A systematic review. Reprod Biomed Online 2018; 36:677-685. [PMID: 29627226 DOI: 10.1016/j.rbmo.2018.03.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 03/08/2018] [Accepted: 03/08/2018] [Indexed: 01/18/2023]
Abstract
Recurrent pregnancy loss (RPL) is a common, yet elusive, complication of pregnancy. Among couples at high risk of RPL, such as those carrying a structural chromosomal rearrangement, preimplantation genetic diagnosis (PGD) has been proposed as a tool to improve live birth rates and reduce the incidence of miscarriage; however, no clear consensus has been reached on its benefits in this population. This systematic review summarizes existing published research on the effect of PGD on pregnancy outcomes among carriers of chromosomal abnormalities with RPL. A comprehensive search of common databases was conducted, which yielded 20 studies. Meta-analysis was precluded owing to significant heterogeneity between studies. The primary outcome of interest was live birth rate (LBR), and a pooled total of 847 couples who conceived naturally had a LBR ranging from 25-71% compared with 26.7-87% among 562 couples who underwent IVF and PGD. Limitations of the study include lack of large comparative or randomized control studies. Patients experiencing RPL with structural chromosomal rearrangement should be counselled that good reproductive outcomes can be achieved through natural conception, and that IVF-PGD should not be offered first-line, given the unproven benefits, additional cost and potential complications associated with assisted reproductive technology.
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Affiliation(s)
- Mahmoud Iews
- Department of Obstetrics and Gynecology, The University of British Columbia, D415A-4500 Oak Street, Vancouver, BC, V6H 3N1, Canada; Department of Obstetrics and Gynecology, South Valley University, 83523 Qena, Egypt
| | - Justin Tan
- Department of Obstetrics and Gynecology, The University of British Columbia, D415A-4500 Oak Street, Vancouver, BC, V6H 3N1, Canada
| | - Omur Taskin
- Department of Obstetrics and Gynecology, The University of British Columbia, D415A-4500 Oak Street, Vancouver, BC, V6H 3N1, Canada
| | - Sukainah Alfaraj
- Department of Obstetrics and Gynecology, The University of British Columbia, D415A-4500 Oak Street, Vancouver, BC, V6H 3N1, Canada
| | - Faten F AbdelHafez
- Department of Obstetrics and Gynecology, Assiut University, Kornish Al Ibrahimeya, Al Walideyah Al Qebleyah, Qesm Than Asyut, Assiut Governorate, Egypt
| | - Ahmed H Abdellah
- Department of Obstetrics and Gynecology, South Valley University, 83523 Qena, Egypt
| | - Mohamed A Bedaiwy
- Department of Obstetrics and Gynecology, The University of British Columbia, D415A-4500 Oak Street, Vancouver, BC, V6H 3N1, Canada.
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Kalotra V, Lall M, Saviour P, Verma IC, Kaur A. Prevalence of Cytogenetic Anomalies in Couples with Recurrent Miscarriages: A Case-control Study. J Hum Reprod Sci 2018; 10:302-309. [PMID: 29430159 PMCID: PMC5799936 DOI: 10.4103/jhrs.jhrs_68_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Background: About 15%–20% of couples get affected by recurrent miscarriages (RM) and chromosomal abnormality in one partner affects 3%–6% of RM couples. Aims: The present study aimed to determine the prevalence of cytogenetic anomalies in couples with RM. Settings and Design: A case–control study was undertaken, in which 243 couples who had experienced 2 or >2 miscarriages were investigated for chromosomal abnormalities and compared with 208 healthy, age-matched control couples who had at least one healthy live born and no history of miscarriages. Material and Methods: Peripheral blood (PB) lymphocytes were cultured using PB-Max Karyotyping medium (GIBCO) for chromosomal analysis and 20 metaphases were analyzed for each individual. Statistical Analysis: Student's t-test was used for statistical evaluation and P < 0.05 was considered statistically significant for all instances. Results: The current study revealed 3.1% RM cases showing structural chromosomal aberrations, of which balanced translocations and Robertsonian translocations constituted 66.7% and 26.7% cases, respectively, while inversions constituted 6.7% abnormal RM cases. Polymorphic variations were observed in 1.9% RM patients and 1.2% controls as well. However, the number of abortions were significantly more (P = 0.027) in male carriers of balanced translocations as compared to female carriers in the RM group. There was no significant difference for age (P = 0.539) between RM women and control women. Conclusions: Although similar studies exist in literature, our study is the first of its kind from our region that has compared the chromosomal anomalies between the RM group and the control group. We observed 3.1% of balanced translocations and an increased number (though nonsignificant) of polymorphic variations and satellite associations in the RM group as compared to the control group.
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Affiliation(s)
- Vishali Kalotra
- Cytogenetics Laboratory, Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi, India.,Department of Human Genetics, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Meena Lall
- Cytogenetics Laboratory, Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi, India
| | - Pushpa Saviour
- Cytogenetics Laboratory, Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi, India
| | - Ishwar Chander Verma
- Cytogenetics Laboratory, Institute of Medical Genetics and Genomics, Sir Ganga Ram Hospital, New Delhi, India
| | - Anupam Kaur
- Department of Human Genetics, Guru Nanak Dev University, Amritsar, Punjab, India
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Zhang HG, Wang RX, Pan Y, Zhang H, Li LL, Zhu HB, Liu RZ. A report of nine cases and review of the literature of infertile men carrying balanced translocations involving chromosome 5. Mol Cytogenet 2018; 11:10. [PMID: 29416565 PMCID: PMC5785882 DOI: 10.1186/s13039-018-0360-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/16/2018] [Indexed: 12/21/2022] Open
Abstract
Background Balanced translocations may cause the loss of genetic material at the breakpoints and may result in failure of spermatogenesis. However, carriers of reciprocal translocation may naturally conceive. Genetic counseling of male carriers of translocations remains challenging. This study explores the clinical features of carriers of chromosome 5 translocations, enabling informed genetic counseling of these patients. Results Of 82 translocation carriers, 9 (11%) were carriers of a chromosome 5 translocation. One case had azoospermia, while three cases had experienced recurrent spontaneous abortions, two cases had each experienced stillbirth, and three cases produced a phenotypically normal child confirmed by amniocentesis. A literature review identified 106 patients who carried chromosome 5 translocations. The most common chromosome 5 translocation was t(4,5), observed in 13 patients. Breakpoint at 5p15 was observed in 11 patients. All breakpoints at chromosome 5 were associated with gestational infertility. Conclusion In genetic counseling, physicians should consider chromosome 5 and its breakpoints. Carriers of chromosome 5 translocations may continue with natural conception or use assisted reproductive technologies, such as preimplantation genetic diagnosis.
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Affiliation(s)
- Hong-Guo Zhang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
| | - Rui-Xue Wang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
| | - Yuan Pan
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
| | - Han Zhang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
| | - Lei-Lei Li
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
| | - Hai-Bo Zhu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
| | - Rui-Zhi Liu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, 71 Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021 China
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Arafa MM, Majzoub A, AlSaid SS, El Ansari W, Al Ansari A, Elbardisi Y, Elbardisi HT. Chromosomal abnormalities in infertile men with azoospermia and severe oligozoospermia in Qatar and their association with sperm retrieval intracytoplasmic sperm injection outcomes. Arab J Urol 2017; 16:132-139. [PMID: 29713544 PMCID: PMC5922002 DOI: 10.1016/j.aju.2017.11.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/04/2017] [Accepted: 11/19/2017] [Indexed: 11/17/2022] Open
Abstract
Objective To study the types and incidence of chromosomal abnormalities in infertile men with azoospermia and severe oligozoospermia in Qatar, and to compare the hormonal changes, testicular sperm retrieval rate, and intracytoplasmic sperm injection (ICSI) outcome between patients with chromosomal abnormalities and patients with idiopathic infertility. Patients and methods This study involved the retrospective chart review of 625 infertile male patients attending an academic tertiary medical centre in Qatar. Retrieved information included data on medical history, family history, clinical examination, semen analysis, initial hormonal profiles, and genetic studies, ICSI, and sperm retrieval results. Results The incidence of chromosomal abnormalities was 9.59% (10.6% amongst Qatari patients, 9.04% amongst non-Qataris). About 63.6% of the sample had azoospermia, of whom 10.8% had chromosomal abnormalities. Roughly 36.4% of the sample had oligozoospermia, of whom 7.5% had chromosomal abnormalities. There were no differences between patients with chromosomal abnormalities and those with idiopathic infertility for demographic and infertility features; but for the hormonal profiles, patients with idiopathic infertility had significantly lower luteinising hormone and follicle-stimulating hormone values. For ICSI outcomes, patients with chromosomal abnormalities had a significantly lower total sperm retrieval rate (47.4% vs 65.8%), surgical sperm retrieval rate (41.2% vs 58.1%), and lower clinical pregnancy rate (16.7% vs 26.6%) when compared to the idiopathic infertility group. Conclusion The incidence of chromosomal abnormalities in Qatar as a cause of severe male infertility is within a similar range as their prevalence internationally.
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Affiliation(s)
- Mohamed M. Arafa
- Urology Department, Hamad Medical Corporation, Doha, Qatar
- Andrology Department, Cairo University Medical School, Cairo, Egypt
- Corresponding author at: Department of Urology, Hamad Medical Corporation, PO Box 3050, Doha, Qatar.
| | - Ahmad Majzoub
- Urology Department, Hamad Medical Corporation, Doha, Qatar
| | - Sami S. AlSaid
- Urology Department, Hamad Medical Corporation, Doha, Qatar
| | - Walid El Ansari
- Department of Surgery, Hamad General Hospital, Hamad Medical Corporation, Doha, Qatar
- College of Medicine, Qatar University, Doha, Qatar
| | - Abdulla Al Ansari
- Urology Department, Hamad Medical Corporation, Doha, Qatar
- Department of Surgery, Hamad General Hospital, Hamad Medical Corporation, Doha, Qatar
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Turki RF, Assidi M, Banni HA, Zahed HA, Karim S, Schulten HJ, Abu-Elmagd M, Rouzi AA, Bajouh O, Jamal HS, Al-Qahtani MH, Abuzenadah AM. Associations of recurrent miscarriages with chromosomal abnormalities, thrombophilia allelic polymorphisms and/or consanguinity in Saudi Arabia. BMC MEDICAL GENETICS 2016; 17:69. [PMID: 27766963 PMCID: PMC5073987 DOI: 10.1186/s12881-016-0331-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Recurrent pregnancy loss (RPL) or recurrent spontaneous abortion is an obstetric complication that affects couples at reproductive age. Previous reports documented a clear relationship between parents with chromosomal abnormalities and both recurrent miscarriages and infertility. However, limited data is available from the Arabian Peninsula which is known by higher rates of consanguineous marriages. The main goal of this study was to determine the prevalence of chromosomal abnormalities and thrombophilic polymorphisms, and to correlate them with RPL and consanguinity in Saudi Arabia. METHODS Cytogenetic analysis of 171 consent patients with RPL was performed by the standard method of 72-h lymphocyte culture and GTG banding. Allelic polymorphisms of three thrombophilic genes (Factor V Leiden, Prothrombin A20210G, MTHFR C677T) were performed using PCR-RFLP (restriction fragment length polymorphism) and gel electrophoresis. RESULTS Data analysis revealed that 7.6 % of patients were carrier of numerical or structural chromosomal abnormalities. A high rate of translocations (46 %) was associated to increased incidence of RPL. A significant correlation between consanguineous RPL patients and chromosomal abnormalities (P < 0.05) was found. Both Factor V Leiden and Prothrombin A20210G allelic polymorphisms were significantly associated with a higher prevalence of RPL. CONCLUSIONS This study demonstrated a strong association between RPL and the prevalence of chromosomal abnormalities and inherited thrombophilia. Given the high rate of consanguineous marriages in the Saudi population, these results underline the importance of systematic cytogenetic investigation and genetic counseling preferably at the premarital stage or at least during early pregnancy phase through preimplantation genetic diagnosis (PGD).
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Affiliation(s)
- Rola F. Turki
- Obstetrics and Gynecology Department, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
- Center of Innovation in Personalized Medicine, King AbdulAziz University, P.O. Box: 80216, Jeddah, 21589 Kingdom of Saudi Arabia
| | - Mourad Assidi
- Center of Innovation in Personalized Medicine, King AbdulAziz University, P.O. Box: 80216, Jeddah, 21589 Kingdom of Saudi Arabia
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Huda A. Banni
- Center of Innovation in Personalized Medicine, King AbdulAziz University, P.O. Box: 80216, Jeddah, 21589 Kingdom of Saudi Arabia
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hanan A. Zahed
- Obstetrics and Gynecology Department, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Sajjad Karim
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hans-Juergen Schulten
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Muhammad Abu-Elmagd
- Center of Innovation in Personalized Medicine, King AbdulAziz University, P.O. Box: 80216, Jeddah, 21589 Kingdom of Saudi Arabia
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdulrahim A. Rouzi
- Obstetrics and Gynecology Department, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Osama Bajouh
- Obstetrics and Gynecology Department, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
- Center of Innovation in Personalized Medicine, King AbdulAziz University, P.O. Box: 80216, Jeddah, 21589 Kingdom of Saudi Arabia
| | - Hassan S. Jamal
- Obstetrics and Gynecology Department, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Mohammed H. Al-Qahtani
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Adel M. Abuzenadah
- Center of Innovation in Personalized Medicine, King AbdulAziz University, P.O. Box: 80216, Jeddah, 21589 Kingdom of Saudi Arabia
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
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Shpiz A, Ben-Yosef D, Kalma Y. Impaired function of trophoblast cells derived from translocated hESCs may explain pregnancy loss in women with balanced translocation (11;22). J Assist Reprod Genet 2016; 33:1493-1499. [PMID: 27503403 DOI: 10.1007/s10815-016-0781-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 07/20/2016] [Indexed: 10/21/2022] Open
Abstract
PURPOSE The aim of the study was to study whether the trophoblasts carrying unbalanced translocation 11,22 [t(11;12)] display abnormal expression of trophoblastic genes and impaired functional properties that may explain implantation failure. METHODS t(11;22) hESCs and control hESCs were differentiated in vitro into trophoblast cells in the presence of BMP4, and trophoblast vesicles (TBVs) were created in suspension. The expression pattern of extravillous trophoblast (EVT) genes was compared between translocated and control TBVs. The functional properties of the TBVs were evaluated by their attachment to endometrium cells (ECC1) and invasion through trans-well inserts. RESULTS TBVs derived from control hESCs expressed EVT genes from functioning trophoblast cells. In contrast, TBVs differentiated from the translocated hESC line displayed impaired expression of EVT genes. Moreover, the number of TBVs that were attached to endometrium cells was significantly lower compared to the controls. Correspondingly, invasiveness of trophoblast-differentiated translocated cells was also significantly lower than that of the control cells. CONCLUSIONS These results may explain the reason for implantation failure in couple carriers of t(11;22). They also demonstrate that translocated hESCs comprise a valuable in vitro human model for studying the mechanisms underlying implantation failure.
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Affiliation(s)
- Alina Shpiz
- Wolfe PGD Stem Cell Lab, Racine IVF Unit, Lis Maternity Hospital, Tel-Aviv Sourasky Medical Center, Tel Aviv-Yafo, Israel.,Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv-Yafo, Israel
| | - Dalit Ben-Yosef
- Wolfe PGD Stem Cell Lab, Racine IVF Unit, Lis Maternity Hospital, Tel-Aviv Sourasky Medical Center, Tel Aviv-Yafo, Israel. .,Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv-Yafo, Israel.
| | - Yael Kalma
- Wolfe PGD Stem Cell Lab, Racine IVF Unit, Lis Maternity Hospital, Tel-Aviv Sourasky Medical Center, Tel Aviv-Yafo, Israel
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Pundir J, Magdalani L, El-Toukhy T. Outcome of preimplantation genetic diagnosis using FISH analysis for recurrent miscarriage in low-risk reciprocal translocation carriers. Eur J Obstet Gynecol Reprod Biol 2016; 203:214-9. [PMID: 27343738 DOI: 10.1016/j.ejogrb.2016.05.053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 05/16/2016] [Accepted: 05/31/2016] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To assess PGD outcome using FISH analysis in couples with a history of recurrent miscarriage associated with a parental carrier of reciprocal translocation. STUDY DESIGN Couples in whom one partner was a carrier of a reciprocal translocation and had a history of two or more miscarriages and a low risk of a live born offspring with an unbalanced chromosomal rearrangement, underwent PGD treatment between 2000 and 2012. RESULTS 91 couples started 171 fresh and 11 frozen PGD cycles. Of the fresh cycles, 162 (95%) reached oocyte retrieval and 107 (63%) had embryo transfer. In 14 cycles (8%), surplus embryos were cryopreserved. Pregnancy was achieved in 52 fresh PGD cycles, leading to 20 miscarriages and 32 live births. Eleven frozen embryo transfer cycles resulted in two miscarriages and three live births. The overall live birth rate was 19% per fresh and frozen PGD cycle started (35/182) and miscarriage rate was 39% per pregnancy (22/57). The cumulative live birth rate was 32% per couple (29/91). CONCLUSION After PGD for recurrent miscarriage in low-risk reciprocal translocation carriers, the miscarriage risk remains high and chance of live birth is low. For those translocation carriers, natural conception may be a better option.
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Affiliation(s)
- Jyotsna Pundir
- Centre of Preimplantation Genetic Diagnosis and Assisted Conception Unit, Guy's and St. Thomas' Hospital NHS Foundation Trust, London, UK.
| | - Laurice Magdalani
- Centre of Preimplantation Genetic Diagnosis and Assisted Conception Unit, Guy's and St. Thomas' Hospital NHS Foundation Trust, London, UK
| | - Tarek El-Toukhy
- Centre of Preimplantation Genetic Diagnosis and Assisted Conception Unit, Guy's and St. Thomas' Hospital NHS Foundation Trust, London, UK
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Farahmand K, Kalantari H, Fakhri M, Fazeli AS, Moradi SZ, Almadani N, Hashemi M, Gourabi H, Mohseni-Meybodi A. Evaluation of 1100 couples with recurrent pregnancy loss using conventional cytogenetic, PGD, and PGS: hype or hope. Gynecol Endocrinol 2016; 32:483-7. [PMID: 26854690 DOI: 10.3109/09513590.2015.1134476] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Recurrent pregnancy loss (RPL) is an important clinical problem, mostly resulting from chromosomal or genetic defects, while in 30-60% of cases, it is idiopathic. The aim of this study is to evaluate the frequency and types of chromosomal abnormalities, also pre-implantation genetic diagnosis (PGD) and pre-implantation genetic screening (PGS) outcomes among Iranian couples with RPL. This retrospective study was conducted on 1100 Iranian couples (2200 individuals) with RPL referred to Royan Institute between 2008 and 2014. Karyotyping had been performed using standard cytogenetic techniques. PGD results of RPL patients with abnormal karyotypes and PGS results of RPL patients with normal karyotypes were also analyzed. The frequency of chromosomal abnormalities in these patients was 4.95%. Women demonstrated more abnormalities (6.82%) in comparison to men (3.09%). The successful rate of pregnancy after PGD and PGS was 52 and 18.64%, respectively. The observation of 4.95% chromosomal abnormalities among the patients with RPL could support this hypothesis that there is a direct relationship between chromosomal abnormalities and RPL. More than half of the patients who underwent PGD had successful pregnancy; therefore, this approach can improve the success rate of pregnancy in them. The results of PGS cycles showed that this technique could increase the live birth rate in RPL patients.
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Affiliation(s)
- Kamelia Farahmand
- a Department of Genetics , Tehran Medical Sciences Branch, Islamic Azad University , Tehran , Iran
- b Department of Genetics at Reproductive Biomedicine Research Center , Royan Institute for Reproductive Biomedicine, ACECR , Tehran , Iran , and
| | - Hamid Kalantari
- b Department of Genetics at Reproductive Biomedicine Research Center , Royan Institute for Reproductive Biomedicine, ACECR , Tehran , Iran , and
| | - Mostafa Fakhri
- b Department of Genetics at Reproductive Biomedicine Research Center , Royan Institute for Reproductive Biomedicine, ACECR , Tehran , Iran , and
| | - Abolhasan Shahzadeh Fazeli
- b Department of Genetics at Reproductive Biomedicine Research Center , Royan Institute for Reproductive Biomedicine, ACECR , Tehran , Iran , and
- c Iranian Biological Resource Center (IBRC), ACECR , Tehran , Iran
| | - Shabnam Zari Moradi
- b Department of Genetics at Reproductive Biomedicine Research Center , Royan Institute for Reproductive Biomedicine, ACECR , Tehran , Iran , and
| | - Navid Almadani
- b Department of Genetics at Reproductive Biomedicine Research Center , Royan Institute for Reproductive Biomedicine, ACECR , Tehran , Iran , and
| | - Mehrdad Hashemi
- a Department of Genetics , Tehran Medical Sciences Branch, Islamic Azad University , Tehran , Iran
| | - Hamid Gourabi
- b Department of Genetics at Reproductive Biomedicine Research Center , Royan Institute for Reproductive Biomedicine, ACECR , Tehran , Iran , and
| | - Anahita Mohseni-Meybodi
- b Department of Genetics at Reproductive Biomedicine Research Center , Royan Institute for Reproductive Biomedicine, ACECR , Tehran , Iran , and
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Liu HY, Huang J, Li T, Wu D, Wang HD, Wang Y, Wang T, Guo LJ, Guo QN, Huang FF, Wang RL, Wang YT. Clinical and molecular cytogenetic analyses of four patients with imbalanced translocations. Mol Cytogenet 2016; 9:31. [PMID: 27099631 PMCID: PMC4837590 DOI: 10.1186/s13039-016-0244-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 04/12/2016] [Indexed: 01/24/2023] Open
Abstract
Background Chromosomal abnormalities that result in genomic imbalances are main causes of congenital and developmental anomalies including intellectual disability and multiple congenital malformations. In this report we describe four patients from three families with imbalanced translocations. Only a small percentage of imbalanced translocation individuals can be born to live, most of them were aborted in embryonic period. It is of great significances to precisely analysis the chromosome variation to study the relationship between genotype and phenotype. Results Four patients showed common clinical manifestations including delayed growth, intellectual disability, language barrier and facial dysmorphisms. In addition to the above features, lower limbs dysplasia and both foot eversion were found in patient 1, brachydactylic hand, cerebellar ataxia and congenital heart defects were also found in patient 4. Conventional karyotype analysis revealed abnormal karyotypes 46, XX, der (6) t (6: 10) (p23; q24), 46, XX, der (20) t (3; 20) (p23; p13) and 46, XX, der (22) t (3; 22) (q27; q13.3) in the four patients, respectively. Array-CGH analyses confirmed 23.6 Mb duplication on 10q25.1-q26.3 and 0.9 Mb deletions on 6p25.3, 19.9 Mb duplication on 3p24.3-p26.3 and 0.25 Mb deletion on 20p13 and 12.5 Mb duplication on 3q27.2-q29 and 1.9 Mb deletions on 22q13.2-q13.33 in the four patients, respectively. Conclusion Parents with balanced translocation are passed the imbalanced chromosome to patient, and the partial monosomy and partial trisomy lead to multiple congenital malformations of four patients. Electronic supplementary material The online version of this article (doi:10.1186/s13039-016-0244-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hong Yan Liu
- Department of Medical Genetics Institute, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, 450003 Henan China
| | - Jia Huang
- Department of Medical Genetics Institute, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, 450003 Henan China
| | - Tao Li
- Department of Medical Genetics Institute, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, 450003 Henan China
| | - Dong Wu
- Department of Medical Genetics Institute, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, 450003 Henan China
| | - Hong Dan Wang
- Department of Medical Genetics Institute, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, 450003 Henan China
| | - Yue Wang
- Department of Gynaecology and Obstetrics, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, 450003 Henan China
| | - Tao Wang
- Department of Medical Genetics Institute, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, 450003 Henan China
| | - Liang Jie Guo
- Department of Medical Genetics Institute, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, 450003 Henan China
| | - Qian Nan Guo
- Department of Medical Genetics Institute, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, 450003 Henan China
| | - Fei Fei Huang
- Department of Medical Genetics Institute, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, 450003 Henan China
| | - Rui Li Wang
- Department of Ultrasonography, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, 450003 Henan China
| | - Ying Tai Wang
- Department of Medical Genetics Institute, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, 450003 Henan China
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Tunç E, Tanrıverdi N, Demirhan O, Süleymanova D, Çetinel N. Chromosomal analyses of 1510 couples who have experienced recurrent spontaneous abortions. Reprod Biomed Online 2016; 32:414-9. [PMID: 26874988 DOI: 10.1016/j.rbmo.2016.01.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 01/14/2016] [Accepted: 01/19/2016] [Indexed: 12/19/2022]
Abstract
In this retrospective study, karyotype results of 1510 couples with a history of recurrent spontaneous abortion were evaluated. The study was conducted at Balcalı Hospital in Adana region of Turkey. For all cases, peripheral blood lymphocytes were cultured for chromosome study using the standard method. Chromosome aberrations were detected in 62 couples (4.1% of all couples). At an individual level, chromosome aberrations were found in a total of 65 cases (41 females and 24 male cases), with structural chromosomal aberrations in 58 cases including balanced translocations in 30 cases, Robertsonian translocations in 12 cases, deletions in seven cases, inversions in nine cases and numerical chromosome aberrations in seven cases. The results of the study indicated that structural aberrations, particularly translocations, were the most common type of aberration observed among couples who had experienced recurrent spontaneous abortions and that these couples might benefit from cytogenetic analyses.
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Affiliation(s)
- Erdal Tunç
- Medical Biology and Genetics Department, Çukurova University, 01330, Adana, Turkey
| | - Nilgün Tanrıverdi
- Medical Biology and Genetics Department, Çukurova University, 01330, Adana, Turkey
| | - Osman Demirhan
- Medical Biology and Genetics Department, Çukurova University, 01330, Adana, Turkey.
| | - Dilara Süleymanova
- Medical Biology and Genetics Department, Çukurova University, 01330, Adana, Turkey
| | - Nesrin Çetinel
- Medical Biology and Genetics Department, Çukurova University, 01330, Adana, Turkey
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Zhao WW, Wu M, Chen F, Jiang S, Su H, Liang J, Deng C, Hu C, Yu S. Robertsonian translocations: an overview of 872 Robertsonian translocations identified in a diagnostic laboratory in China. PLoS One 2015; 10:e0122647. [PMID: 25932913 PMCID: PMC4416705 DOI: 10.1371/journal.pone.0122647] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 02/11/2015] [Indexed: 11/18/2022] Open
Abstract
Robertsonian translocations (ROBs) have an estimated incidence rate of 1/1000 births, making this type of rearrangement the most common structural chromosomal abnormalities seen in the general population. In this study, we reports 872 cases of ROBs from 205,001 specimens karyotyped postnatally in a single accredited laboratory in China, including 583 balanced ROBs, 264 unbalanced ROBs, 9 mosaic ROBs, and 18 complex ROBs. Ninety-three percent of the balanced ROBs observed were adults with infertility, miscarriage, or offspring(s) with known chromosomal abnormalities. Significant excess of females were found to be carriers of balanced ROBs with an adjusted male/female ratio of 0.77. Ninety-eight percent of the unbalanced ROBs observed were children with variable referral reasons. Almost all of the unbalanced ROBs involved chromosome 21 except a single ROB with [46,XX,der(13;14),+13] identified in a newborn girl with multiple congenital anomalies. Multiple novel ROB karyotypes were reported in this report. This study represents the largest collections of ROBs in Chinese population.
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Affiliation(s)
- Wei-Wei Zhao
- KingMed Genome Diagnostic Laboratory, Guangzhou, China
| | - Menghua Wu
- KingMed Genome Diagnostic Laboratory, Guangzhou, China
| | - Fan Chen
- KingMed Genome Diagnostic Laboratory, Guangzhou, China
| | - Shuai Jiang
- KingMed Genome Diagnostic Laboratory, Guangzhou, China
| | - Hui Su
- KingMed Genome Diagnostic Laboratory, Guangzhou, China
| | - Jianfen Liang
- KingMed Genome Diagnostic Laboratory, Guangzhou, China
| | - Chunhua Deng
- KingMed Genome Diagnostic Laboratory, Guangzhou, China
| | - Chaohui Hu
- KingMed Genome Diagnostic Laboratory, Guangzhou, China
| | - Shihui Yu
- KingMed Genome Diagnostic Laboratory, Guangzhou, China
- Department of Laboratory Medicine, University of Washington School of Medicine and Seattle Children’s Hospital, Seattle, Washington, United States of America
- * E-mail:
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Abu-Elmagd M, Assidi M, Schulten HJ, Dallol A, Pushparaj PN, Ahmed F, Scherer SW, Al-Qahtani M. Individualized medicine enabled by genomics in Saudi Arabia. BMC Med Genomics 2015; 8 Suppl 1:S3. [PMID: 25951871 PMCID: PMC4315314 DOI: 10.1186/1755-8794-8-s1-s3] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The biomedical research sector in Saudi Arabia has recently received special attention from the government, which is currently supporting research aimed at improving the understanding and treatment of common diseases afflicting Saudi Arabian society. To build capacity for research and training, a number of centres of excellence were established in different areas of the country. Among these, is the Centre of Excellence in Genomic Medicine Research (CEGMR) at King Abdulaziz University, Jeddah, with its internationally ranked and highly productive team performing translational research in the area of individualized medicine. Here, we present a panorama of the recent trends in different areas of biomedical research in Saudi Arabia drawing from our vision of where genomics will have maximal impact in the Kingdom of Saudi Arabia. We describe advances in a number of research areas including; congenital malformations, infertility, consanguinity and pre-implantation genetic diagnosis, cancer and genomic classifications in Saudi Arabia, epigenetic explanations of idiopathic disease, and pharmacogenomics and personalized medicine. We conclude that CEGMR will continue to play a pivotal role in advances in the field of genomics and research in this area is facing a number of challenges including generating high quality control data from Saudi population and policies for using these data need to comply with the international set up.
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Affiliation(s)
- Muhammad Abu-Elmagd
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
- KACST Technology Innovation Centre in Personalized Medicine at King Abdulaziz University (CIPM), P.O. Box: 80216 Jeddah 21589, KSA
- School of Biological Sciences, University of East Anglia, Norwich, Norfolk, NR4 7TJ, UK
- Zoology Department, Faculty of Science, Minia University, Minia, P.O. Box 61519, Egypt
| | - Mourad Assidi
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
- KACST Technology Innovation Centre in Personalized Medicine at King Abdulaziz University (CIPM), P.O. Box: 80216 Jeddah 21589, KSA
| | - Hans-Juergen Schulten
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
| | - Ashraf Dallol
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
- KACST Technology Innovation Centre in Personalized Medicine at King Abdulaziz University (CIPM), P.O. Box: 80216 Jeddah 21589, KSA
| | - Peter Natesan Pushparaj
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
| | - Farid Ahmed
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
| | - Stephen W Scherer
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
- The Centre for Applied Genomics and Program in Genetics and Genome Biology, the Hospital for Sick Children, Toronto, Ontario, Canada
- McLaughlin Centre and Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Mohammed Al-Qahtani
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
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Shpiz A, Kalma Y, Frumkin T, Telias M, Carmon A, Amit A, Ben-Yosef D. Human embryonic stem cells carrying an unbalanced translocation demonstrate impaired differentiation into trophoblasts: an in vitro model of human implantation failure. Mol Hum Reprod 2014; 21:271-80. [PMID: 25391299 DOI: 10.1093/molehr/gau104] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Carriers of the balanced translocation t(11;22), the most common reciprocal translocation in humans, are at high risk of creating gametes with unbalanced translocation, leading to repeated miscarriages. Current research models for studying translocated embryos and the biological basis for their implantation failure are limited. The aim of this study was to elucidate whether human embryonic stem cells (hESCs) carrying the unbalanced chromosomal translocation t(11;22) can provide an explanation for repeated miscarriages of unbalanced translocated embryos. Fluorescent in situ hybridization and karyotype analysis were performed to analyze the t(11;22) in embryos during PGD and in the derived hESC line. The hESC line was characterized by RT-PCR and FACS analysis for pluripotent markers. Directed differentiation to trophoblasts was carried out by bone morphogenetic protein 4 (BMP4). Trophoblast development was analyzed by measuring β-hCG secretion, by β-hCG immunostaining and by gene expression of trophoblastic markers. We derived the first hESC line carrying unbalanced t(11;22), which showed the typical morphological and molecular characteristics of a hESC line. Control hESCs differentiated into trophoblasts secreted increasing levels of β-hCG and concomitantly expressed the trophoblast genes, CDX2, TP63, KRT7, ERVW1, CGA, GCM1, KLF4 and PPARG. In contrast, differentiated translocated hESCs displayed reduced and delayed secretion of β-hCG concomitant with impaired expression of the trophoblastic genes. The reduced activation of trophoblastic genes may be responsible for the impaired trophoblastic differentiation in t(11;22)-hESCs, associated with implantation failure in unbalanced t(11;22) embryos. Our t(11;22) hESCs are presented as a valuable human model for studying the mechanisms underlying implantation failure.
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Affiliation(s)
- A Shpiz
- Wolfe PGD Stem Cell Lab, Racine IVF Unit, Lis Maternity Hospital, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Y Kalma
- Wolfe PGD Stem Cell Lab, Racine IVF Unit, Lis Maternity Hospital, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - T Frumkin
- Wolfe PGD Stem Cell Lab, Racine IVF Unit, Lis Maternity Hospital, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - M Telias
- Wolfe PGD Stem Cell Lab, Racine IVF Unit, Lis Maternity Hospital, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - A Carmon
- Wolfe PGD Stem Cell Lab, Racine IVF Unit, Lis Maternity Hospital, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - A Amit
- Wolfe PGD Stem Cell Lab, Racine IVF Unit, Lis Maternity Hospital, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - D Ben-Yosef
- Wolfe PGD Stem Cell Lab, Racine IVF Unit, Lis Maternity Hospital, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
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Turki RF, Banni HA, Assidi M, Al-Qahtani MH, Abduljabbar HS, Jamel HS, Rouzi AA, Abuzenadah AM. Analysis of chromosomal and genetic disorders in patients with recurrent miscarriages in Saudi Arabia. BMC Genomics 2014. [PMCID: PMC4075753 DOI: 10.1186/1471-2164-15-s2-p73] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Abstract
Double balanced translocations are particularly rare and the risk of a fetus with an unbalanced chromosomal anomaly is greater than for single translocation carriers. In this present case, we describe an interesting family history which included three generations. A couple, married for 4 years, was referred to the genetic clinic due to infertility and family chromosome anomalies. A GTG-band chromosome analysis indicated that the male partner’s karyotype was 45,XY, t(3;18)(q11;ptel)t(13;14)(q10;q10). The same double balanced translocation was found in two others family members.
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