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Tan H, Huang Q, Liu D, Huang L, Chen C, Wang F, Dong M, Weng H, Zhu X, Zhang X, Liu F. Effects of Carrier's sex on the outcome of embryos and pregnancies in 412 couples undergoing preimplantation genetic testing for structural rearrangements. Gene 2025; 933:148989. [PMID: 39384107 DOI: 10.1016/j.gene.2024.148989] [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: 05/04/2024] [Revised: 09/16/2024] [Accepted: 10/04/2024] [Indexed: 10/11/2024]
Abstract
STUDY DESIGN To ascertain whether the carrier's sex affects the outcome of embryos and pregnancies in couples undergoing preimplantation genetic testing for structural rearrangements (PGT-SR). METHODS This retrospective study comprised 412 couples with reciprocal translocations (RecT), Robertsonian translocations (RobT), or inversions (INV) between January 2017 and October 2022. We applied next-generation sequencing (NGS) on 2588 embryos after trophectoderm (TE) biopsy. RESULTS Genetically transferable blastocyst rate was higher in the male carrier group (34.0 % vs 31.7 %, P = 0.013) relative to the female carrier group whereas other embryo and pregnancy outcomes remained similar. Further analysis revealed that this result was primarily due to the alteration of segregation patterns in the RobT subgroup, in which the proportion of alternate segregation was higher (84.3 % vs 66.4 %, P < 0.001) in male carriers compared with female carriers. In the RecT subgroup, the genetically transferable blastocyst rate between male and female carriers was similar although the segregation models also changed, such that the frequency of the adjacent-1 segregation pattern was higher in male carriers than in female carriers (42.5 % vs 34.7 %, P = 0.002). In addition, interchromosomal effect (ICE) did not differ between male and female carriers although ICE was lower in male carriers of the RobT subgroup (pure ICE: 35.50 % vs 44.30 %, P = 0.14; total ICE: 35.50 % vs 40.30 %, P = 0.32) and higher in male carriers of the INV subgroup (pure ICE: 42.3 % vs 37.20 %, P = 0.33; total ICE: 40.90 % vs 36.00 %, P = 0.36). CONCLUSIONS The carrier's sex was closely associated with the genetically transferable embryo rate in couples undergoing PGT-SR, principally resulted from the change in segregation pattern in the RobT subgroup but not in the RecT and INV subgroups.
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Affiliation(s)
- Hu Tan
- Reproductive Medical Center, Guangdong Women and Children Hospital, Guangzhou, Guangdong Province 511400, China
| | - Qianwen Huang
- Reproductive Medical Center, Guangdong Women and Children Hospital, Guangzhou, Guangdong Province 511400, China
| | - Dun Liu
- Reproductive Medical Center, Guangdong Women and Children Hospital, Guangzhou, Guangdong Province 511400, China
| | - Li Huang
- Reproductive Medical Center, Guangdong Women and Children Hospital, Guangzhou, Guangdong Province 511400, China
| | - Chuangqi Chen
- Reproductive Medical Center, Guangdong Women and Children Hospital, Guangzhou, Guangdong Province 511400, China
| | - Fang Wang
- Reproductive Medical Center, Guangdong Women and Children Hospital, Guangzhou, Guangdong Province 511400, China
| | - Mei Dong
- Reproductive Medical Center, Guangdong Women and Children Hospital, Guangzhou, Guangdong Province 511400, China
| | - Huinan Weng
- Reproductive Medical Center, Guangdong Women and Children Hospital, Guangzhou, Guangdong Province 511400, China
| | - Xiulan Zhu
- Reproductive Medical Center, Guangdong Women and Children Hospital, Guangzhou, Guangdong Province 511400, China
| | - Xiqian Zhang
- Reproductive Medical Center, Guangdong Women and Children Hospital, Guangzhou, Guangdong Province 511400, China.
| | - Fenghua Liu
- Reproductive Medical Center, Guangdong Women and Children Hospital, Guangzhou, Guangdong Province 511400, China.
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Huang S, Huang Y, Li S, He Y. Chromosome 17 translocation affects sperm morphology: Two case studies and literature review. Andrologia 2022; 54:e14620. [PMID: 36270636 DOI: 10.1111/and.14620] [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: 06/23/2022] [Revised: 09/14/2022] [Accepted: 09/28/2022] [Indexed: 11/30/2022] Open
Abstract
We present two cases of infertile males with teratozoospermia stemming from chromosome 17 translocation. The patients present karyotypes that have not been previously reported. Genes located on breakpoints (17p11.2, 9q31, and 11p15) were analysed to find the probable mechanism affecting sperm morphology. Our results suggest that ALKBH5, TOP3A, and LLGL1 interactions may be an underlying cause of abnormal sperm head morphology. Translocation of chromosome 17 occurred in conjunction with chromosome 9 and chromosome 11 translocation in the two cases, resulting in oligozoospermia and asthenozoospermia, respectively. These abnormal phenotypes may involve meiosis- and motility-related genes such as LDHC, DNHD1, UBQLN3, and NUP98. Translocation is thus a risk factor for sperm morphological abnormalities and motility deficiency. The interaction network of 22 genes on breakpoints suggests that they contribute to spermatogenesis as a group. In conclusion, this study highlighted the importance of investigating genes linked to sperm morphology, together with chromosome 17 translocation and reproductive risks. For patients interested in screening before a future pregnancy, we recommend preimplantation genetic diagnosis to reduce the risk of karyotypically unbalanced foetuses and birth defects.
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Affiliation(s)
- Shan Huang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yingting Huang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Shan Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yu He
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, China
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3
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Zhu S, Zhu Y, Zhang F, Wu J, Chen Y, Sun Y, Fu J, Wu J, Xiao M, Zhang S, Zhou J, Lei C, Jiang F. FISH analysis of numerical chromosomal abnormalities in the sperm of robertsonian translocation der(13; 14)(q10;q10) carriers. Front Genet 2022; 13:1010568. [PMID: 36238152 PMCID: PMC9551382 DOI: 10.3389/fgene.2022.1010568] [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: 08/03/2022] [Accepted: 09/05/2022] [Indexed: 11/20/2022] Open
Abstract
Fluorescence in situ hybridization analysis of numerical chromosomal abnormalities in the sperm of Robertsonian translocation der (13;14) (q10;q10) carriers has focused on a limited number of chromosomes mainly on chromosome 13, 18, 21, X, and Y. Here, we aimed to expand the analysis to all chromosomes by increasing the number of probes analyzed in fluorescence in situ hybridization. The incidence of numerical abnormalities of all chromosomes (1–22, X, and Y) was determined in sperm from 10 carriers of the Robertsonian translocation der(13;14)(q10;q10) and 10 normozoospermic males to fully assess the effect of translocation-derived chromosome on the segregation of all chromosomes during meiosis. Numerical abnormalities of the two translocated chromosomes were frequently detected in the sperm of der (13;14) translocation carriers, with an average frequency of 14.55% ± 6.00% for chromosome 13 and 13.27% ± 4.14% for chromosome 14. Numerical abnormalities of nontranslocated chromosomes, with an average frequency of 1.77% ± 0.62% (range, 1.16%–3.73%), was lower than that of translocated chromosome. However, the cumulative numerical abnormality of the 22 nontranslocated chromosomes was comparable to that of the two translocated chromosomes. Significantly increased numerical abnormalities in der(13;14) translocation carriers compared with those in normozoospermic males indicates the presence of translocation-derived chromosome disturbances, with translocated chromosomes being most affected; nontranslocated chromosomes were also affected, but to a lesser extent due to a mild interchromosomal effect.
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Affiliation(s)
- Saijuan Zhu
- Laboratory of Genetics, Shanghai Ji Ai Genetics and IVF Institute, Shanghai, China
| | - Yong Zhu
- Human Sperm Bank, Fudan University, Shanghai, China
| | - Feng Zhang
- Human Sperm Bank, Fudan University, Shanghai, China
| | - Junping Wu
- Laboratory of Genetics, Shanghai Ji Ai Genetics and IVF Institute, Shanghai, China
| | - Ying Chen
- Laboratory of Andrology, Shanghai Ji Ai Genetics and IVF Institute, Shanghai, China
| | - Yijuan Sun
- Laboratory of Embryology, Shanghai Ji Ai Genetics and IVF Institute, Shanghai, China
| | - Jing Fu
- Laboratory of Embryology, Shanghai Ji Ai Genetics and IVF Institute, Shanghai, China
| | - Jiangnan Wu
- Department of Clinical Epidemiology, Clinical Research Unit, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
| | - Min Xiao
- Laboratory of Genetics, Shanghai Ji Ai Genetics and IVF Institute, Shanghai, China
| | - Shuo Zhang
- Laboratory of Genetics, Shanghai Ji Ai Genetics and IVF Institute, Shanghai, China
| | - Jing Zhou
- Laboratory of Genetics, Shanghai Ji Ai Genetics and IVF Institute, Shanghai, China
| | - Caixia Lei
- Laboratory of Genetics, Shanghai Ji Ai Genetics and IVF Institute, Shanghai, China
- *Correspondence: Caixia Lei, ; Feng Jiang,
| | - Feng Jiang
- Human Sperm Bank, Fudan University, Shanghai, China
- *Correspondence: Caixia Lei, ; Feng Jiang,
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Ogur C, Kahraman S, Griffin DK, Cinar Yapan C, Tufekci MA, Cetinkaya M, Temel SG, Yilmaz A. PGT for structural chromosomal rearrangements in 300 couples reveals specific risk factors but an interchromosomal effect is unlikely. Reprod Biomed Online 2022; 46:713-727. [PMID: 36803887 DOI: 10.1016/j.rbmo.2022.07.016] [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: 03/22/2022] [Revised: 07/17/2022] [Accepted: 07/25/2022] [Indexed: 11/26/2022]
Abstract
RESEARCH QUESTION What factors affect the proportion of chromosomally balanced embryos in structural rearrangement carriers? Is there any evidence for an interchromosomal effect (ICE)? DESIGN Preimplantation genetic testing outcomes of 300 couples (198 reciprocal, 60 Robertsonian, 31 inversion and 11 complex structural rearrangement carriers) were assessed retrospectively. Blastocysts were analysed either by array-comparative genomic hybridization or next-generation sequencing techniques. ICE was investigated using a matched control group and sophisticated statistical measurement of effect size (φ). RESULTS 300 couples underwent 443 cycles; 1835 embryos were analysed and 23.8% were diagnosed as both normal/balanced and euploid. The overall cumulative clinical pregnancy and live birth rates were 69.5% and 55.8%, respectively. Complex translocations and female age (≥35) were found to be risk factors associated with lower chance of having a transferable embryo (P < 0.001). Based on analysis of 5237 embryos, the cumulative de-novo aneuploidy rate was lower in carriers compared to controls (45.6% versus 53.4%, P < 0.001) but this was a 'negligible' association (φ < 0.1). A further assessment of 117,033 chromosomal pairs revealed a higher individual chromosome error rate in embryos of carriers compared to controls (5.3% versus 4.9%), which was also a 'negligible' association (φ < 0.1), despite a P-value of 0.007. CONCLUSIONS These findings suggest that rearrangement type, female age and sex of the carrier have significant impacts on the proportion of transferable embryos. Careful examination of structural rearrangement carriers and controls indicated little or no evidence for an ICE. This study helps to provide a statistical model for investigating ICE and an improved personalized reproductive genetics assessment for structural rearrangement carriers.
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Affiliation(s)
- Cagri Ogur
- Yildiz Technical University, Department of Bioengineering, Istanbul, Turkey; Igenomix Avrupa Laboratories, Istanbul, Turkey.
| | - Semra Kahraman
- Istanbul Memorial Hospital, ART and Reproductive Genetics Center, Istanbul, Turkey
| | - Darren Karl Griffin
- School of Biosciences, Centre for Interdisciplinary Studies of Reproduction, University of Kent, Canterbury CT2 7NJ, UK
| | - Cigdem Cinar Yapan
- Istanbul Memorial Hospital, ART and Reproductive Genetics Center, Istanbul, Turkey
| | - Mehmet Ali Tufekci
- Istanbul Memorial Hospital, ART and Reproductive Genetics Center, Istanbul, Turkey
| | - Murat Cetinkaya
- Istanbul Memorial Hospital, ART and Reproductive Genetics Center, Istanbul, Turkey
| | - Sehime Gulsun Temel
- Uludag University, Faculty of Medicine, Department of Medical Genetics, Bursa, Turkey.
| | - Alper Yilmaz
- Yildiz Technical University, Department of Bioengineering, Istanbul, Turkey.
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Chen X, Zhou C. Reciprocal translocation and Robertsonian translocation in relation to semen parameters: A retrospective study and systematic review. Andrologia 2021; 54:e14262. [PMID: 34599520 DOI: 10.1111/and.14262] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 09/10/2021] [Accepted: 09/21/2021] [Indexed: 01/07/2023] Open
Abstract
Reciprocal translocation and Robertsonian translocation are known to be causative factors of male infertility. However, the association between autosomal reciprocal translocation, Robertsonian translocation and semen parameters remains controversial. We performed a retrospective study and systematic review to investigate semen parameters in patients with autosomal reciprocal translocation or Robertsonian translocation. We recruited a total of 1,033 controls, 723 reciprocal translocation carriers and 326 Robertsonian translocation carriers. Men in the control, reciprocal translocation and Robertsonian translocation groups had a median age of 32.0 (95% CI, 32.0-33.0), 32.0 (95% CI, 32.0-33.0) and 33.0 (95% CI, 32.0-33.0) years respectively. Results showed that sperm concentration, total number per ejaculate, total motility, progressive motility of autosomal reciprocal translocation and Robertsonian translocation carriers were statistically lower than controls (p < .001). Eleven studies featuring 794 patients were enrolled in this systematic review. Compared with controls, autosomal reciprocal translocation and Robertsonian translocation carriers showed lower sperm concentration, total motility, progressive motility and normal morphology. Our results support the conclusion that sperm concentration, total number per ejaculate, total motility and progressive motility are significantly lower in autosomal reciprocal translocation and Robertsonian translocation carriers than in controls.
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Affiliation(s)
- Xiaochuan Chen
- Reproductive Medicine Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,The Key Laboratory for Reproductive Medicine of Guangdong Province, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Canquan Zhou
- Reproductive Medicine Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,The Key Laboratory for Reproductive Medicine of Guangdong Province, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Olszewska M, Wiland E, Wanowska E, Huleyuk N, Chernykh VB, Zastavna D, Kurpisz M. Analysis of sperm chromosomes in six carriers
of rare and common Robertsonian translocations. POSTEP HIG MED DOSW 2021. [DOI: 10.5604/01.3001.0014.8122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Introduction: Robertsonian translocation (RobT) is the central fusion of the long arms of two acrocentric
chromosomes, leading to 45 chromosomes in humans. The most common ones are rob(13;14)
and rob(14;21) (91%). Other types of RobT are so-called rare cases. In the general population
RobTs occur with a frequency of approximately 0.123%, but among men with reproductive
failure this value rises 9-fold. Infertility in RobT carriers is associated with the formation of
unbalanced spermatozoa resulting from segregation of the chromosomes involved in trivalent
during the meiotic prophase. In spermatozoa of many RobT carriers an increased level
of chromosomal aneuploidy is observed.
Materials and Methods: We examined the hyperhaploidy level of chromosomes 7, 9, 18, 21, 22, X and Y in spermatozoa
of 6 RobT unrelated carriers: two carriers with rare rob(13;15), one with rare rob(13;22), and
three of the common rob(13;14). Results were compared with the control data from a group
of 7 fertile men with a normal karyotype. Fluorescent in situ hybridization (FISH) was applied.
Results: We found an increased level of sperm aneuploidy regarding at least one of the analyzed
chromosomes in each of the carriers, while in rare RobTs interchromosomal effect (ICE) was
observed. Meiotic segregation pattern of a rare rob(13;15) carrier revealed the 76% of normal
/balanced spermatozoa.
Disucussion: Due to the relatively high population frequency of RobTs, their influence on reproductive
failure, hight risk of imbalancement in prenatal diagnosis (7%), and small amount of data for
rare RobTs, each newly characterized case is valuable in genetic counseling.
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Affiliation(s)
- Marta Olszewska
- Institute of Human Genetics, Polish Academy of Sciences, Poland
| | - Ewa Wiland
- Institute of Human Genetics, Polish Academy of Sciences, Poland
| | | | - Nataliya Huleyuk
- Institute of Hereditary Pathology, Ukrainian Academy of Medical Sciences, Ukraine
| | - Vyacheslav B. Chernykh
- Research Centre for Medical Genetics, Russian Academy of Medical Sciences, Russian Federation
| | - Danuta Zastavna
- Institute of Hereditary Pathology, Ukrainian Academy of Medical Sciences, Ukraine
| | - Maciej Kurpisz
- Institute of Human Genetics, Polish Academy of Sciences, Poland
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Boynukalin FK, Gultomruk M, Turgut NE, Rubio C, Rodrigo L, Yarkiner Z, Ecemis S, Karlikaya G, Findikli N, Bahceci M. The impact of patient, embryo, and translocation characteristics on the ploidy status of young couples undergoing preimplantation genetic testing for structural rearrangements (PGT-SR) by next generation sequencing (NGS). J Assist Reprod Genet 2021; 38:387-396. [PMID: 33398513 PMCID: PMC7884505 DOI: 10.1007/s10815-020-02054-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 12/28/2020] [Indexed: 10/22/2022] Open
Abstract
PURPOSE To evaluate the factors that affect the incidence of euploid balanced embryos and interchromosomal effect (ICE) in carriers of different structural rearrangements. METHODS This retrospective study includes 95 couples with reciprocal translocations (RecT) and 36 couples with Robertsonian translocations (RobT) undergoing Preimplantation Genetic Testing for Structural Rearrangements (PGT-SR) between March 2016 and July 2019. Next-generation sequencing (NGS) was the technique used coupled with trophectoderm (TE) biopsy. Only cases with females under 38 years were included. A total of 532 blastocysts were evaluated. RESULTS The euploidy rate was similar in RobT when compared with RecT carriers [57/156 (36.5%) vs. 112/376 (29.8%), p = 0.127]. The pure ICE rate was significantly higher in RobT carriers [48/156 (30.8%) vs. 53/376 (14.1%), p < 0.001] than it was in RecT carriers. Female age was the independent factor for the probability of obtaining a euploid embryo in RecT and RobT carriers, and increasing female age decreases the probability of obtaining a euploid embryo. In RecT carriers, no significant differences were observed in euploidy rates, pure ICE, or combined ICE according to the length of the translocated fragment and the chromosome group. However, total ICE was significantly lower when there was a breakpoint in the short chromosome arm together with a breakpoint in the long arm [(44/158 (27.8%) for pq or qp, 51/155 (32.9%) for pp and 30/63 (47.6%) for qq; p = 0.02]. CONCLUSION The incidence of euploid/balanced blastocysts was similar in both types of translocations. However, there was a significant increase in pure ICE in RobT compared to RecT carriers. In RecT carriers, the presence of the breakpoints in the long arm of the chromosomes involved in the rearrangement resulted in a higher total ICE.
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Affiliation(s)
| | - Meral Gultomruk
- Bahceci Health Group, Hakki Yeten cad. No: 11 Terrace Fulya, Fulya, Istanbul, Turkey
| | - Niyazi Emre Turgut
- Bahceci Health Group, Hakki Yeten cad. No: 11 Terrace Fulya, Fulya, Istanbul, Turkey
| | - Carmen Rubio
- IGENOMIX, Calle Narcís Monturiol Estarriol no. 11 Parcela B, Edificio Europark, Parque Tecnológico de Paterna, 46980, Paterna, Valencia, Spain
| | - Lorena Rodrigo
- IGENOMIX, Calle Narcís Monturiol Estarriol no. 11 Parcela B, Edificio Europark, Parque Tecnológico de Paterna, 46980, Paterna, Valencia, Spain
| | - Zalihe Yarkiner
- Department of Statistics, Cyprus Science University, Dr. Fazil Kucuk Cad., 99320, Ozankoy, Cyprus
| | - Selen Ecemis
- Bahceci Health Group, Hakki Yeten cad. No: 11 Terrace Fulya, Fulya, Istanbul, Turkey
| | - Guvenc Karlikaya
- Bahceci Health Group, Hakki Yeten cad. No: 11 Terrace Fulya, Fulya, Istanbul, Turkey
| | - Necati Findikli
- Bahceci Health Group, Hakki Yeten cad. No: 11 Terrace Fulya, Fulya, Istanbul, Turkey
| | - Mustafa Bahceci
- Bahceci Health Group, Hakki Yeten cad. No: 11 Terrace Fulya, Fulya, Istanbul, Turkey
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Wiland E, Olszewska M, Woźniak T, Kurpisz M. How much, if anything, do we know about sperm chromosomes of Robertsonian translocation carriers? Cell Mol Life Sci 2020; 77:4765-4785. [PMID: 32514588 PMCID: PMC7658086 DOI: 10.1007/s00018-020-03560-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 05/08/2020] [Accepted: 05/22/2020] [Indexed: 12/11/2022]
Abstract
In men with oligozoospermia, Robertsonian translocations (RobTs) are the most common type of autosomal aberrations. The most commonly occurring types are rob(13;14) and rob(14;21), and other types of RobTs are described as 'rare' cases. Based on molecular research, all RobTs can be broadly classified into Class 1 and Class 2. Class 1 translocations produce the same breakpoints within their RobT type, but Class 2 translocations are predicted to form during meiosis or mitosis through a variety of mechanisms, resulting in variation in the breakpoint locations. This review seeks to analyse the available data addressing the question of whether the molecular classification of RobTs into Classes 1 and 2 and/or the type of DD/GG/DG symmetry of the involved chromosomes is reflected in the efficiency of spermatogenesis. The lowest frequency value calculated for the rate of alternate segregants was found for rob(13;15) carriers (Class 2, symmetry DD) and the highest for rob(13;21) carriers (Class 2, DG symmetry). The aneuploidy values for the rare RobT (Class 2) and common rob(14;21) (Class 1) groups together exhibited similarities while differing from those for the common rob(13;14) (Class 1) group. Considering the division of RobT carriers into those with normozoospermia and those with oligoasthenozoospermia, it was found that the number of carriers with elevated levels of aneuploidy was unexpectedly quite similar and high (approx. 70%) in the two subgroups. The reason(s) that the same RobT does not always show a similar destructive effect on fertility was also pointed out.
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Affiliation(s)
- Ewa Wiland
- Institute of Human Genetics, Polish Academy of Sciences, ul. Strzeszynska 32, 60-479, Poznan, Poland
| | - Marta Olszewska
- Institute of Human Genetics, Polish Academy of Sciences, ul. Strzeszynska 32, 60-479, Poznan, Poland
| | - Tomasz Woźniak
- Institute of Human Genetics, Polish Academy of Sciences, ul. Strzeszynska 32, 60-479, Poznan, Poland
| | - Maciej Kurpisz
- Institute of Human Genetics, Polish Academy of Sciences, ul. Strzeszynska 32, 60-479, Poznan, Poland.
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9
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Yıldırım MS, Arslan AB, Zamani AG. Interchromosomal effect: Report of a father and son, bearing different translocations of the same chromosome, and a review of the current literature. Andrologia 2020; 53:e13805. [PMID: 32862490 DOI: 10.1111/and.13805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 07/19/2020] [Indexed: 11/29/2022] Open
Abstract
Interchromosomal effect is a controversial phenomenon postulating that during gametogenesis of translocation carriers, aside from the unbalanced segregation of chromosomes involved in the translocation, other, structurally normal chromosomes might also be affected and segregated abnormally. Here, we present a balanced reciprocal translocation carrier t(15;20)(q11;p13), and his son, bearing a different translocation of chromosome 15, t(15;Y)(q11;q12). To further elucidate the so-far-controversial interchromosomal effect phenomenon, published original articles and case reports about interchromosomal effect were reviewed. The father was a carrier of t(15;20)(q11;p13). His wife's karyotype was normal. During a pregnancy occurred without any preceding procedure, amniocentesis was recommended to the family and performed. Result of the amniocentesis revealed a different translocation of chromosome 15; t(15;Y)(q11;q12). To our knowledge, this is the first report of two generations within a family, bearing different translocations of a chromosome. On top of all previous studies investigating ICE, our case adds an important finding, showing not only the rate of aneuploidies of structurally normal chromosomes, but also the rate of this 'alternating translocations' might be increased in translocation carriers, and this could be an important clue about interchromosomal effects.
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Affiliation(s)
- Mahmut Selman Yıldırım
- Department of Medical Genetics, Meram Medical Faculty, Necmettin Erbakan University, Konya, Turkey
| | - Ahmet Burak Arslan
- Department of Medical Genetics, Meram Medical Faculty, Necmettin Erbakan University, Konya, Turkey
| | - Ayşe Gül Zamani
- Department of Medical Genetics, Meram Medical Faculty, Necmettin Erbakan University, Konya, Turkey
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10
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Olszewska M, Wiland E, Huleyuk N, Fraczek M, Midro AT, Zastavna D, Kurpisz M. Chromosome (re)positioning in spermatozoa of fathers and sons - carriers of reciprocal chromosome translocation (RCT). BMC Med Genomics 2019; 12:30. [PMID: 30709354 PMCID: PMC6359769 DOI: 10.1186/s12920-018-0470-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 12/28/2018] [Indexed: 01/05/2023] Open
Abstract
Background Non-random chromosome positioning has been observed in the nuclei of several different tissue types, including human spermatozoa. The nuclear arrangement of chromosomes can be altered in men with decreased semen parameters or increased DNA fragmentation and in males with chromosomal numerical or structural aberrations. An aim of this study was to determine whether and how the positioning of nine chromosome centromeres was (re)arranged in the spermatozoa of fathers and sons – carriers of the same reciprocal chromosome translocation (RCT). Methods Fluorescence in situ hybridization (FISH) was applied to analyse the positioning of sperm chromosomes in a group of 13 carriers of 11 RCTs, including two familial RCT cases: t(4;5) and t(7;10), followed by analysis of eight control individuals. Additionally, sperm chromatin integrity was evaluated using TUNEL and Aniline Blue techniques. Results In the analysed familial RCT cases, repositioning of the chromosomes occurred in a similar way when compared to the data generated in healthy controls, even if some differences between father and son were further observed. These differences might have arisen from various statuses of sperm chromatin disintegration. Conclusions Nuclear topology appears as another aspect of epigenetic genomic regulation that may influence DNA functioning. We have re-documented that chromosomal positioning is defined in control males and that a particular RCT is reflected in the individual pattern of chromosomal topology. The present study examining the collected RCT group, including two familial cases, additionally showed that chromosomal factors (karyotype and hyperhaploidy) have superior effects, strongly influencing the chromosomal topology, when confronted with sperm chromatin integrity components (DNA fragmentation or chromatin deprotamination). Electronic supplementary material The online version of this article (10.1186/s12920-018-0470-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Marta Olszewska
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479, Poznan, Poland
| | - Ewa Wiland
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479, Poznan, Poland
| | - Nataliya Huleyuk
- National Academy of Medical Sciences of Ukraine, Institute of Hereditary Pathology, Lysenko Str. 31a, Lviv, 79000, Ukraine
| | - Monika Fraczek
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479, Poznan, Poland
| | - Alina T Midro
- Department of Clinical Genetics, Medical University of Bialystok, Waszyngtona 13, PO Box 22, 15-089, Bialystok, Poland
| | - Danuta Zastavna
- National Academy of Medical Sciences of Ukraine, Institute of Hereditary Pathology, Lysenko Str. 31a, Lviv, 79000, Ukraine.,Department of Biotechnology and Bioinformatics, Faculty of Chemistry, Rzeszow University of Technology, Al. Powstancow Warszawy 6, 35-959, Rzeszow, Poland
| | - Maciej Kurpisz
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479, Poznan, Poland.
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Hajlaoui A, Slimani W, Kammoun M, Sallem A, Braham S, Bibi M, Saad A, Mougou-Zerelli S. Sperm fluorescent in situ hybridisation study of interchromosomal effect in six Tunisian carriers of reciprocal and Robertsonian translocations. Andrologia 2018; 50:e12949. [PMID: 29336050 DOI: 10.1111/and.12949] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2017] [Indexed: 01/03/2023] Open
Abstract
Carriers of structural chromosomal anomalies, translocations and inversions are at increased risk of aneuploid gametes production. Besides the direct effect on the involved chromosomes, these rearrangements might disturb the segregation of other structurally normal chromosomes during meiosis. Such event is known as interchromosomal effect. In this study, six male carriers of translocations, four reciprocals and two Robertsonians, were investigated. In addition, seven fertile men with normal 46,XY karyotypes and normal sperm characteristics were enrolled as a control group. Spermatic fluorescent in situ hybridisation specific for chromosomes X, Y, 18, 21 and 22 was carried out. The Mann-Whitney U-test was used to compare the aneuploidy rates between patients and controls. All translocation carriers showed significantly increased frequencies of disomy of all investigated chromosomes, and diploid gametes compared with the control group (p < .05). However, disomy XY was not significantly different between controls and patients (p > .05). We have also observed a considerable interindividual variability in disomy and diploidy rates. These results confirm that the interchromosomal effect seems to exist and could contribute to higher rates of abnormal prenatal aneuploidy, resulting in a small increase in the risk of miscarriage and birth of children with congenital abnormalities and a potential reduction in fertility.
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Affiliation(s)
- A Hajlaoui
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
| | - W Slimani
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
| | - M Kammoun
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
| | - A Sallem
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
| | - S Braham
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
| | - M Bibi
- Department of Obstetrics and Gynecology, Farhat Hached University Hospital, Sousse, Tunisia
| | - A Saad
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
| | - S Mougou-Zerelli
- Department of Cytogenetic and Reproductive Biology, Farhat Hached University Hospital, Sousse, Tunisia
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Wang B, Nie B, Tang D, Li R, Liu X, Song J, Wang W, Liu Z. Analysis of Meiotic Segregation Patterns and Interchromosomal Effects in Sperm from 13 Robertsonian Translocations. Balkan J Med Genet 2017; 20:43-50. [PMID: 28924540 PMCID: PMC5596821 DOI: 10.1515/bjmg-2017-0003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The frequency of the Robertonian (ROB) translocation in newborn babies is approximately one in 1000. Robertsonian translocation is an unusual type of chromosome rearrangement caused by two particular chromosomes joining together. The aim of the study was to analyze the segregation of the ROB translocations in 13 male carriers, and to verify a possible inter-chromosomal effect (ICE) of the ROB translocation on chromosomes 18, X, and Y. Thirteen male patients were included in the study. Multicolor fluorescent in situ hybridization (FISH) was used to analyze chromosomes 13, 14, 15, 21, 22, 18, X and Y in sperm. Among the heterozygous ROB translocation carriers, the frequency of normal/balanced spermatozoa resulting from alternate segregation varied between 70.4 and 85.2%. The frequency of unbalanced spermatozoa resulting from adjacent segregation varied between 14.8 and 29.6%. Increased frequencies of aneuploidy for a sex chromosome were found in 10 ROB translocation carriers (P2-P8, P10-P12). Increased frequencies of aneuploidy for chromosome 18 were found in10 ROB translocation carriers (P3-P9, P11-P13). In addition, increased frequencies of diploid were found in 11 ROB translocation carriers (P2-P9, P11-P13). Among the homozygous ROB translocation carriers, the rate of balanced spermatozoa was 99.7% and the frequency of unbalanced spermatozoa was 0.3%. However, the frequencies of aneuploidy for a sex chromosome and chromosome 18 were normal. Despite the high number of normal/balanced frequencies, there remained many unbalanced spermatozoa resulting from alternate segregation. The ROB translocation carriers may be at an increased risk for ICE. Robertsonian translocation homozygosity could be seen as a potential speciation in humans with 44 chromosomes.
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Affiliation(s)
- B Wang
- Department of Clinical Laboratory, Hubei Maternal and Child Health Hospital, 745 WuLuo Road, Wuhan, Hubei, People’s Republic of China. Tel: +86-27-8716-9190. Fax: +86-27-8716-9097
| | - B Nie
- Department of Clinical Laboratory, Hubei Maternal and Child Health Hospital, Wuhan, Hubei, People’s Republic of China
| | - D Tang
- Department of Clinical Laboratory, Renmin Hospital Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - R Li
- Internal Medicine-Cardiovascular Department, Xiaogan Hospital affiliated to Wuhan University of Science and Technology, Xiaogan, Hubei, People’s Republic of China
| | - X Liu
- Department of Clinical Laboratory, Hubei Maternal and Child Health Hospital, Wuhan, Hubei, People’s Republic of China
| | - J Song
- Department of Clinical Laboratory, Hubei Maternal and Child Health Hospital, Wuhan, Hubei, People’s Republic of China
| | - W Wang
- Department of Clinical Laboratory, Hubei Maternal and Child Health Hospital, Wuhan, Hubei, People’s Republic of China
| | - Z Liu
- Department of Clinical Laboratory, Hubei Maternal and Child Health Hospital, Wuhan, Hubei, People’s Republic of China
- Department of Clinical Laboratory, Hubei Maternal and Child Health Hospital, 745 WuLuo Road, Wuhan, Hubei, People’s Republic of China. Tel: +86-27-8716-9190. Fax: +86-27-8716-9097
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Barasc H, Congras A, Mary N, Trouilh L, Marquet V, Ferchaud S, Raymond-Letron I, Calgaro A, Loustau-Dudez AM, Mouney-Bonnet N, Acloque H, Ducos A, Pinton A. Meiotic pairing and gene expression disturbance in germ cells from an infertile boar with a balanced reciprocal autosome-autosome translocation. Chromosome Res 2016; 24:511-527. [PMID: 27484982 PMCID: PMC5167775 DOI: 10.1007/s10577-016-9533-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/19/2016] [Accepted: 07/21/2016] [Indexed: 11/07/2022]
Abstract
Individuals carrying balanced constitutional reciprocal translocations generally have a normal phenotype, but often present reproductive disorders. The aim of our research was to analyze the meiotic process in an oligoasthenoteratospermic boar carrying an asymmetric reciprocal translocation involving chromosomes 1 and 14. Different multivalent structures (quadrivalent and trivalent plus univalent) were identified during chromosome pairing analysis. Some of these multivalents were characterized by the presence of unpaired autosomal segments with histone γH2AX accumulation sometimes associated with the XY body. Gene expression in spermatocytes was studied by RNA-DNA-FISH and microarray-based testis transcriptome analysis. Our results revealed a decrease in gene expression for chromosomes 1 and 14 and an up-regulated expression of X-chromosome genes for the translocated boar compared with normal individuals. We hypothesized that the observed meiotic arrest and reproductive failure in this boar might be due to silencing of crucial autosomal genes (MSUC) and disturbance of meiotic sex chromosome inactivation (MSCI). Further analysis revealed abnormal meiotic recombination (frequency and distribution) and the production of a high rate of unbalanced spermatozoa.
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Affiliation(s)
- Harmonie Barasc
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Toulouse, France.
| | - Annabelle Congras
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Toulouse, France
| | - Nicolas Mary
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Toulouse, France
| | - Lidwine Trouilh
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
| | - Valentine Marquet
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Toulouse, France
| | - Stéphane Ferchaud
- GenESI Génétique, Expérimentation et Système Innovants, 17700, Saint-Pierre-d'Amilly, France
| | - Isabelle Raymond-Letron
- STROMALab, Université de Toulouse, CNRS ERL 5311, EFS, ENVT, Inserm U1031, UPS, Toulouse, France
| | - Anne Calgaro
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Toulouse, France
| | | | | | - Hervé Acloque
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Toulouse, France
| | - Alain Ducos
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Toulouse, France
| | - Alain Pinton
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Toulouse, France
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Song J, Li X, Sun L, Xu S, Liu N, Yao Y, Liu Z, Wang W, Rong H, Wang B. A family with Robertsonian translocation: a potential mechanism of speciation in humans. Mol Cytogenet 2016; 9:48. [PMID: 27330563 PMCID: PMC4912789 DOI: 10.1186/s13039-016-0255-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 06/03/2016] [Indexed: 11/17/2022] Open
Abstract
Background Robertsonian translocations occur in approximately one in every 1000 newborns. Although most Robertsonian translocation carriers are healthy and have a normal lifespan, they are at increased risk of spontaneous abortions and risk of producing unbalanced gametes and, therefore unbalanced offspring. Here we reported a previously undescribed Robertsonian translocation. Case Presentation We identified three Robertsonian translocation carriers in this family. Two were heterozygous translocation carriers of 45,XX or XY,der(14;15)(q10;q10) and their son was a homozygous translocation carrier of a 44,XY,der(14;15)(q10;q10), der(14;15)(q10;q10) karyotype. Chromosomal analysis of sperm showed 99.7 % of sperm from the homozygous translocation carrier were normal/balanced while only 79.9 % of sperm from the heterozygous translocation carrier were normal/balanced. There was a significantly higher frequency of aneuploidy for sex chromosome in the heterozygous translocation carrier. Conclusions The reproductive fitness of Robertsonian translocation carriers is reduced. Robertsonian translocation homozygosity can be a potential speciation in humans with 44 chromosomes.
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Affiliation(s)
- Jieping Song
- Genetics Laboratory, Hubei Maternal and Child Health Hospital, Wuhan, Hubei People's Republic of China
| | - Xi Li
- Department of gastroenterology, Peking University Shenzhen Hospital, Shenzhen, Guangdong People's Republic of China
| | - Lei Sun
- Laboratory of Medical Genetics, Qinzhou Maternal and Child Health Care Hospital, Guangxi, People's Republic of China
| | - Shuqin Xu
- Genetics Laboratory, Hubei Maternal and Child Health Hospital, Wuhan, Hubei People's Republic of China
| | - Nian Liu
- Genetics Laboratory, Hubei Maternal and Child Health Hospital, Wuhan, Hubei People's Republic of China
| | - Yanyi Yao
- Genetics Laboratory, Hubei Maternal and Child Health Hospital, Wuhan, Hubei People's Republic of China
| | - Zhi Liu
- Genetics Laboratory, Hubei Maternal and Child Health Hospital, Wuhan, Hubei People's Republic of China
| | - Weipeng Wang
- Genetics Laboratory, Hubei Maternal and Child Health Hospital, Wuhan, Hubei People's Republic of China
| | - Han Rong
- Shenzhen mental health center, Shenzhen Kangning Hospital, Shenzhen, Guangdong People's Republic of China
| | - Bo Wang
- Genetics Laboratory, Hubei Maternal and Child Health Hospital, Wuhan, Hubei People's Republic of China
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Pylyp LY, Spinenko LO, Verhoglyad NV, Kashevarova OO, Zukin VD. Chromosomal abnormalities in patients with infertility. CYTOL GENET+ 2015. [DOI: 10.3103/s009545271503010x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Kirkpatrick G, Ren H, Liehr T, Chow V, Ma S. Meiotic and sperm aneuploidy studies in three carriers of Robertsonian translocations and small supernumerary marker chromosomes. Fertil Steril 2015; 103:1162-9.e7. [PMID: 25796321 DOI: 10.1016/j.fertnstert.2015.02.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 02/03/2015] [Accepted: 02/05/2015] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To study the meiotic behaviour of one carrier of a small supernumerary marker chromosome (sSMC): 47,XY,+mar; one carrier of a Robertsonian translocation (ROB): 45,XY,rob(13;21) (q10;q10); and one carrier of both a sSMC and a ROB: 46,XY,rob(13;21) (q11.1;q11.1),+mar. DESIGN Case-control study. SETTING University-affiliated research center and hospital. PATIENT(S) Subfertile men with ROB and sSMC. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) The chromosomal origin of the sSMC was assessed by multiplex fluorescence in situ hybridization. The segregation of the ROB and sSMC in sperm and possible interchromosomal effects were examined by fluorescence in situ hybridization. Synapsis, meiotic recombination, and meiotic inactivation were investigated in ejaculate spermatocytes of the 47,XY,+mar and 45,XY,rob(13;21) carriers using immunostaining. RESULT(S) In the 47,XY,+mar and 46,XY,rob(13;21),+mar carriers, the sSMC was found in 13.5% and 11.5 % of sperm, respectively. Analysis of meiotic segregation of chromosome 13 and 21 showed that 91.2% of sperm were normal/balanced in the 46,XY,rob(13;21),+mar case, whereas 88.4% of sperm were normal/balanced in the 45,XY,rob(13;21) case. Interchromosomal effects involving the sex chromosomes were found in both sSMC carriers. Both 47,XY,+mar and 45,XY,rob(13;21) carriers showed decreased global recombination, impaired synapsis, and an association of abnormal chromosomes with the XY body. CONCLUSION(S) Carriers of marker chromosomes produce sperm with markers at frequencies lower than theoretically expected. Carriers of ROB and sSMC showed decreased recombination, impaired synapsis, and association of abnormal chromosomes with the XY body, which may contribute to an interchromosomal effect. Using immunofluorescence techniques to analyze ejaculate-derived spermatocytes from subfertile men provides a novel technique for examining meiosis without the need for a testicular biopsy.
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Affiliation(s)
- Gordon Kirkpatrick
- Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, British Columbia, Canada
| | - He Ren
- Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Thomas Liehr
- Institute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Jena, Germany
| | - Victor Chow
- Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Sai Ma
- Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, British Columbia, Canada.
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17
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Olszewska M, Huleyuk N, Fraczek M, Zastavna D, Wiland E, Kurpisz M. Sperm FISH and chromatin integrity in spermatozoa from a t(6;10;11) carrier. Reproduction 2014; 147:659-70. [DOI: 10.1530/rep-13-0533] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Complex chromosome rearrangements (CCRs) are structurally balanced or unbalanced aberrations involving more than two breakpoints on two or more chromosomes. CCRs can be a potential reason for genomic imbalance in gametes, which leads to a drastic reduction in fertility. In this study, the meiotic segregation pattern, aneuploidy of seven chromosomes uninvolved in the CCR and chromatin integrity were analysed in the ejaculated spermatozoa of a 46,XY,t(6;10;11)(q25.1;q24.3;q23.1)mat carrier with asthenozoospermia and a lack of conception. The frequency of genetically unbalanced spermatozoa was 78.8% with a prevalence of 4:2 segregants of 38.2%, while the prevalence of the adjacent 3:3 mode was 35.3%. Analysis of the aneuploidy of chromosomes 13, 15, 18, 21, 22, X and Y revealed an approximately fivefold increased level in comparison with that of the control group, indicating the presence of an interchromosomal effect. Sperm chromatin integrity status was evaluated using chromomycin A3 and aniline blue staining (deprotamination), acridine orange test and TUNEL assay (sperm DNA fragmentation). No differences were found when comparisons were made with a control group. We suggest that the accumulation of genetically unbalanced spermatozoa, significantly increased sperm aneuploidy level and decreased sperm motility (20%, progressive) were not responsible for the observed lack of reproductive success in the analysed infertile t(6;10;11) carrier. Interestingly, in the case described herein, a high level of sperm chromosomal imbalance appears not to be linked to sperm chromatin integrity status.
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18
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Olszewska M, Fraczek M, Huleyuk N, Czernikiewicz A, Wiland E, Boksa M, Zastavna D, Panasiuk B, Midro AT, Kurpisz M. Chromatin structure analysis of spermatozoa from reciprocal chromosome translocation (RCT) carriers with known meiotic segregation patterns. Reprod Biol 2013; 13:209-20. [DOI: 10.1016/j.repbio.2013.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Revised: 05/21/2013] [Accepted: 06/21/2013] [Indexed: 10/26/2022]
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19
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Vozdova M, Oracova E, Kasikova K, Prinosilova P, Rybar R, Horinova V, Gaillyova R, Rubes J. Balanced chromosomal translocations in men: relationships among semen parameters, chromatin integrity, sperm meiotic segregation and aneuploidy. J Assist Reprod Genet 2013; 30:391-405. [PMID: 23318982 DOI: 10.1007/s10815-012-9921-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Accepted: 12/20/2012] [Indexed: 01/08/2023] Open
Abstract
PURPOSE To analyse relationships between semen parameters, sperm chromatin integrity and frequencies of chromosomally unbalanced, disomic and diploid sperm in 13 Robertsonian and 37 reciprocal translocation carriers and to compare the results with data from 10 control donors. METHODS Conventional semen analysis, Sperm Chromatin Structure Assay and FISH with probes for chromosomes involved in the individual translocations and for chromosomes X, Y, 7, 8, 13, 18 and 21. RESULTS Normal semen parameters were found in 30.8 % of Robertsonian and 59.5 % of reciprocal translocation carriers. The rates of unbalanced sperm were 12.0 % in Robertsonian and 55.1 % in reciprocal translocation carriers with no difference between normospermic patients and those showing altered semen parameters. Significantly increased frequencies of spermatozoa showing defects in chromatin integrity and condensation, aneuploidy for chromosomes not involved in a translocation and diploidy were detected in translocation carriers with abnormal semen parameters. Normospermic reciprocal translocation carriers showed an increase in chromosome 13 disomy compared to the control group. There was no relationship between gametic and somatic aneuploidy in 12 translocation carriers studied by FISH on sperm and lymphocytes. The frequency of motile sperm was negatively correlated with the frequency of sperm showing disomy, diploidy and defective chromatin condensation. CONCLUSIONS Abnormal semen parameters can serve as indicators of an additional risk of forming spermatozoa with defective chromatin and aneuploidy in translocation carriers.
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MESH Headings
- Adult
- Aneuploidy
- Chromatin/genetics
- Chromosome Segregation
- Chromosomes, Human, Pair 13
- Chromosomes, Human, Pair 18
- Chromosomes, Human, X
- Chromosomes, Human, Y
- Heterozygote
- Humans
- In Situ Hybridization, Fluorescence
- Infertility, Male/genetics
- Karyotyping
- Male
- Middle Aged
- Semen/cytology
- Semen Analysis
- Spermatozoa/cytology
- Translocation, Genetic/genetics
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Affiliation(s)
- Miluse Vozdova
- Department of Genetics and Reproduction, Veterinary Research Institute, Hudcova 70, Brno, Czech Republic.
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Pourjafari B, Pour-Jafari H, Farimani M, Ghahramani S, Saleh EK. Genetic counseling in carriers of reciprocal translocations involving two autosomes. INDIAN JOURNAL OF HUMAN GENETICS 2012; 18:250-3. [PMID: 23162307 PMCID: PMC3491305 DOI: 10.4103/0971-6866.100802] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
One of the main genetic causes involve in the pathogenesis of recurrent abortion is parental chromosomal abnormalities. The central concept in genetic counseling with such families is to estimate the probability of recurrence of unfavorable pregnancy outcomes. The main questions that consultants usually ask are: Why did this happen? What is the risk to be done again?Our cases were two families with repeated miscarriage. The pedigrees were drawn, the chromosomes of couples were studied, and estimation for recurrent risk was done. We tried to answer those two main questions and clear the results for them.Parental chromosome abnormalities were founded after karyotyping with GTG technique at 450 band resolution, revealing 46 chromosomes with balanced translocation of autosomes in one of the partner in both families. Recurrent risk was estimated as "high" for their future pregnancies in each family.Couples in which one partner is the carrier of such balanced translocation have increased risks of infertility, recurrent abortion, and delivery of chromosomally abnormal offspring. Genetic counseling of such couples, therefore, presents a unique challenge and should be considered in dealing with such families.
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Affiliation(s)
- Bahareh Pourjafari
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
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21
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Ching CB, Ko E, Hecht B, Smith M, Sabanegh E. Presentation and treatment of subfertile men with balanced translocations: the cleveland clinic experience. Curr Urol 2012; 6:37-42. [PMID: 24917708 DOI: 10.1159/000338868] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Accepted: 11/13/2011] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Balanced chromosomal translocations are a relatively common (2-7%) finding among infertile couples. We report clinical features of males with translocations at our institution. MATERIALS AND METHODS Data was collected on men presenting for infertility evaluation between July 2006 March 2010, including presentation, medical history, and infertility treatments. Criteria for genetic evaluation, consisting of karyotype and Y-linked microdeletion assay, included severe oligozoospermia or azoospermia (sperm concentration < 2.5×106/ml) or a history of recurrent miscarriages. RESULTS Of the 4,612 patients in our male infertility clinic 306 met criteria for genetic evaluation. Three patients had a balanced translocation, of which 2 had Robertsonian translocations, and 1 had a balanced translocation. One patient had normal bulk semen parameters, normal volume azoospermia, and oligoasthenoteratozoospermia. All patients were offered medical genetics consultation. Potential pregnancy outcomes were evaluated using a predictive software package. One patient had intratubular germ cell neoplasia and underwent orchiectomy; subsequent fertility evaluation has been deferred. The other 2 are considering in-vitro fertilization with pre-implantation genetic evaluation. CONCLUSIONS Given the low incidence of balanced translocations detected in our population, better clinical indicators other than semen parameters or history of recurrent pregnancy loss are needed to determine screening for this finding.
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Affiliation(s)
- Christina B Ching
- Center for Male Fertility, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, USA
| | - Edmund Ko
- Center for Male Fertility, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, USA
| | - Bryan Hecht
- OB/GYN & Women's Health Institute, Cleveland Clinic, Youngstown, USA
| | - Marissa Smith
- Genomic Medicine Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Edmund Sabanegh
- Center for Male Fertility, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, USA
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Kasikova K, Vozdova M, Prinosilova P, Gaillyova R, Hanakova M, Rubes J. Sperm meiotic segregation, aneuploidy and high risk of delivering an affected offspring in carriers of non-Robertsonian translocation t(13;15). J Assist Reprod Genet 2012; 29:693-8. [PMID: 22527900 DOI: 10.1007/s10815-012-9767-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Accepted: 03/28/2012] [Indexed: 11/30/2022] Open
Abstract
PURPOSE To determine the percentage of unbalanced spermatozoa and an interchromosomal effect in two carriers of balanced translocations t(13;15)(q32;q26) and t(13;15)(q32;p11.2). METHODS Sperm nuclei analysis by fluorescent in situ hybridization for detection of percentage of unbalanced spermatozoa and sperm with disomy of chromosomes X, Y, 8, 18, 21 and diploidy. RESULTS The incidence of unbalanced spermatozoa was 50.5 % and 44.6 % in patient 1 (P1) and patient 2 (P2), respectively. Partial disomy of chromosome 13 was detected in 13.4 % and 21.3 % of sperm in P1 and P2, respectively. The unbalanced karyotype der(15)t(13;15) was found previously in a son of P1 and in two adult relatives, and prenatally in the family of P2. This demonstrates a high risk of delivering an affected offspring. Significantly increased frequencies of chromosomes 8, 18, X and XY disomy and diploidy were observed in P2, which might either indicate an interchromosomal effect or be related to his asthenoteratozoospermia. CONCLUSIONS Since the proportions of unbalanced spermatozoa and the risk of delivering an affected offspring are high, prenatal or preimplantation genetic diagnosis is recommended for such patients.
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Affiliation(s)
- Katerina Kasikova
- Department of Medical Genetics, University Hospital Brno, 625 00, Brno, Czech Republic
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23
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Anton E, Vidal F, Blanco J. Interchromosomal effect analyses by sperm FISH: incidence and distribution among reorganization carriers. Syst Biol Reprod Med 2012; 57:268-78. [PMID: 22092077 DOI: 10.3109/19396368.2011.633682] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Structural reorganization carriers usually present compromised fertility accompanied by an increased risk of producing gametes with chromosomal abnormalities that can be transmitted to the offspring. In part these imbalances are ascribed to result from the occurrence of meiotic disturbances produced by the rearrangements in the proper segregation of other chromosome pairs. This phenomenon of interference has been called interchromosomal effect (ICE). Several studies have been performed to assess the occurrence of ICE in structural reorganization carriers by analyzing the frequencies of numerical abnormalities in the gametes. Nevertheless, the occurrence and distribution of these disturbing events still is a controversial issue. In this work we present compiled data from 130 sperm fluorescent in situ hybridization (FISH) studies performed in carriers of the most frequent structural rearrangements in humans: 44 Robertsonian translocations, 66 reciprocal translocations and 13 inversions. Data from 7 complex/multiple rearrangements will be considered in a separate group. Significant increases of gametes with numerical abnormalities have been detected in all types of reorganization carriers. Among the groups of non-complex/multiple rearrangements, Robertsonian translocations appear to be the most prone to produce such interference (54.5%) closely followed by reciprocal translocations (43.9%). In contrast, ICE's were only detected in 7.7% of the inversion carriers analyzed. The presence of complex/multiple rearrangements seems to be an important factor for promoting ICE, as 71.4% of these carriers presented increased rates of gametes with numerical abnormalities. Altogether, almost half of the structural reorganization carriers (45.4%) present a higher reproductive risk of producing aneuploid/diploid spermatozoa compared to the general population. This high incidence has been obtained by analyzing a small set of chromosomes, suggesting that underlying meiotic disorders could be present in these individuals. Further ICE studies in structural reorganization carriers will help to clarify the still unknown predisposing cytogenetic features that promote this phenomenon.
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Affiliation(s)
- Ester Anton
- Unitat de Biologia Cel·lular (Facultat de Biociències). Universitat Autònoma de Barcelona, Spain.
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Meiotic behavior of three D;G Robertsonian translocations: segregation and interchromosomal effect. J Hum Genet 2010; 55:541-5. [DOI: 10.1038/jhg.2010.67] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Role of sperm fluorescent in situ hybridization studies in infertile patients: indications, study approach, and clinical relevance. Fertil Steril 2010; 93:1892-902. [DOI: 10.1016/j.fertnstert.2008.12.139] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2008] [Revised: 12/19/2008] [Accepted: 12/26/2008] [Indexed: 12/14/2022]
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Juchniuk de Vozzi MS, Santos SA, Pereira CS, Cuzzi JF, Laureano LA, Franco JG, Martelli L. Meiotic segregation and interchromosomal effect in the sperm of a double translocation carrier: a case report. Mol Cytogenet 2009; 2:24. [PMID: 19951420 PMCID: PMC2796650 DOI: 10.1186/1755-8166-2-24] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2009] [Accepted: 12/01/2009] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Infertility is a natural mechanism of selection intended to prevent the delivery of a child with malformations or mental retardation. Male infertility is closely related to chromosomal abnormalities. This study was focused on the analysis of meiotic segregation involving a Robertsonian translocation, 45,XY,der(13;13) [56]/45,XY,der(13;14) [44] and the evaluation of possible interchromosomal effects. RESULTS Hybridisation with LSI 13q14 and subtelomere 14q probes and WCP13 SpectrumGreen and WCP14 SpectrumOrange probes showed a high proportion of unbalanced gametes, corresponding to 71.2% of the spermatozoa. The disomic frequencies of the sexual chromosomes and chromosome 18 of the patient were higher (5.28% and 2.55%, respectively) than those of the control (0.6% and 0.59%, respectively). CONCLUSION Meiotic segregation studies in sperm are an important tool for genetic counselling of chromosomal aberrations, allowing for a prediction of the risks and consequent implications for the reproductive life. The patient with this rare translocation exhibited meiotic segregation fidelity, and a high rate of unbalanced gametes with disomic spermatozoa.
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Affiliation(s)
- Maria S Juchniuk de Vozzi
- Department of Genetics, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
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Is classic pericentric inversion of chromosome 2 inv(2)(p11q13) associated with an increased risk of unbalanced chromosomes? Fertil Steril 2009; 92:1497.e1-1497.e4. [DOI: 10.1016/j.fertnstert.2009.06.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2009] [Revised: 06/11/2009] [Accepted: 06/18/2009] [Indexed: 11/22/2022]
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Moretti E, Pascarelli NA, Giannerini V, Geminiani M, Anichini C, Collodel G. 18, X, Y aneuploidies and transmission electron microscopy studies in spermatozoa from five carriers of different reciprocal translocations. Asian J Androl 2009; 11:325-32. [PMID: 19349951 DOI: 10.1038/aja.2008.31] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
We analysed ejaculated spermatozoa from five infertile men with different balanced reciprocal translocations to contribute to the study of meiotic segregation of chromosomes 18, X and Y and also to evaluate sperm morphology by transmission electron microscopy (TEM) analysis. Conventional lymphocyte karyotype analyses highlighted different reciprocal balanced translocations: t(12;13), t(4;9), t(X;8), t(8;10) and t(3;16). Semen analysis was performed by light and TEM. Fluorescence in situ hybridization was performed directly on sperm nuclei using centromeric probes for chromosomes 18, X and Y. The carriers of the balanced reciprocal translocations considered in the present study showed a very similar pattern of sperm pathologies: diffused presence of apoptosis and immaturity. All patients showed meiotic segregation derangements, highlighted by the presence of sperm diploidies and sex chromosome disomies particularly related to the failure of the first meiotic division. However, an increased incidence of chromosome 18 aneuploidy was detected in spermatozoa from t(X;8) and t(8;10) carriers. We have also reported values from sex chromosomes such as t(X;8), although the X chromosome was involved in translocation. Since patients with reciprocal translocations and spermatogenetic impairment are candidates for intracytoplasmic sperm injection cycles, the study of sperm parameters, and particularly of the level of aneuploidy rates, would provide better information for couples at risk and would contribute to the data in the literature for a better understanding of the effects of chromosomal rearrangement on the whole meiotic process and, in particular, on chromosomes not involved in translocation.
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Affiliation(s)
- Elena Moretti
- Department of Biomedical Sciences, Applied Biology Section, University of Siena, Siena 53100, Italy
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Vialard F, Pellestor F. Intérêt de la cytogénétique des gamètes humains : résultats et perspectives. ACTA ACUST UNITED AC 2008; 56:388-99. [DOI: 10.1016/j.patbio.2008.04.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2008] [Accepted: 04/16/2008] [Indexed: 10/22/2022]
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Martin RH. Cytogenetic determinants of male fertility. Hum Reprod Update 2008; 14:379-90. [PMID: 18535003 PMCID: PMC2423221 DOI: 10.1093/humupd/dmn017] [Citation(s) in RCA: 136] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2008] [Revised: 04/18/2008] [Accepted: 04/29/2008] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Cytogenetic abnormalities have been known to be important causes of male infertility for decades. METHODS Research publications from 1978 to 2008, from PubMed, have been reviewed. RESULTS These studies have greatly improved our information on somatic chromosomal abnormalities such as translocations, inversions and sex chromosomal anomalies, and their consequences to the cytogenetic make-up of human sperm. Also, we have learned that infertile men with a normal somatic karyotype have an increased risk of chromosomally abnormal sperm and children. New techniques such as single sperm typing and synaptonemal complex analysis have provided valuable insight into the association between meiotic recombination and the production of aneuploid sperm. These meiotic studies have also unveiled errors of chromosome pairing and synapsis, which are more common in infertile men. CONCLUSIONS These studies allow us to provide more precise information to infertile patients, and further our basic knowledge in the causes of male infertility.
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Affiliation(s)
- R H Martin
- Department of Medical Genetics, University of Calgary, Room 287, Heritage Medical Research Building, 3330 Hospital Drive NW, Calgary, Alberta, Canada T2N 4N1.
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Cyrus C, Kaur H, Koshy T, Thankanadar J, Nallathambi C. A de novo reciprocal t(2;18) translocation with regular trisomy 21. GENETIC TESTING 2008; 11:459-62. [PMID: 18294065 DOI: 10.1089/gte.2007.0045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A 4-year-old girl with Down syndrome exhibited an autosomal translocation t(2;18) in addition to trisomy 21. An evaluation of GTG-banded metaphases revealed the karyotype 47,XX,t(2;18),21 that was confirmed by using fluorescent in situ hybridization (FISH) probes. This case represents a very rare coincidence of an autosomal aneuploidy and a structural rearrangement. Her parents showed a normal chromosome complement. The translocation must have been an apparently "balanced" one as the proband presented with typical features of Down syndrome alone. The mechanism of origin of this rearrangement along with a nondisjunctional error and its significance are discussed.
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Affiliation(s)
- Cyril Cyrus
- Department of Genetics, University of Madras, Taramani Campus, Chennai, India
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