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Cassuto NG, Ogal N, Assou S, Ruoso L, Rogers EJ, Monteiro MJ, Thomas D, Siffroi JP, Rouen A. Different Nuclear Architecture in Human Sperm According to Their Morphology. Genes (Basel) 2024; 15:464. [PMID: 38674398 PMCID: PMC11049835 DOI: 10.3390/genes15040464] [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: 03/11/2024] [Revised: 03/31/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
Human sperm parameters serve as a first step in diagnosing male infertility, but not in determining the potential for successful pregnancy during assisted reproductive technologies (ARTs) procedures. Here, we investigated the relationship between sperm head morphology at high magnification, based on strict morphologic criteria, and the nuclear architecture analyzed by fluorescence in situ hybridization (FISH). We included five men. Two of them had an elevated high-magnification morphology score of 6 points (Score 6) indicating high fertility potential, whereas three had a low score of 0 points (Score 0), indicating low fertility potential. We used FISH to study the inter-telomeric distance and the chromosomal territory area of chromosome 1 (Chr. 1). We then compared these two parameters between subjects with high and low scores. FISH data analysis showed that the inter-telomeric distance (ITD) and chromosomal territory area (CTA) of Chr. 1 were significantly higher in subjects with low scores (score 0) than high scores (score 6). Our results suggest that (i) there is a link between nuclear architecture and sperm head abnormalities, particularly vacuoles; and (ii) it is possible to select spermatozoa with normal nuclear architecture, which might indirectly explain the positive ART outcomes observed with this technique.
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Affiliation(s)
- Nino-Guy Cassuto
- ART Unit, Drouot Laboratory, 75009 Paris, France; (L.R.); (M.-J.M.); (D.T.)
| | - Nesrine Ogal
- Department of Medical Genetics, Armand-Trousseau Hospital, AP-HP, INSERM Unit U933, Sorbonne University, 75012 Paris, France; (N.O.); (E.-J.R.); (J.-P.S.)
| | - Said Assou
- Institute for Regenerative Medicine and Biotherapy, University Montpellier, INSERM, CHU Montpellier, 34295 Montpellier, France;
| | - Lea Ruoso
- ART Unit, Drouot Laboratory, 75009 Paris, France; (L.R.); (M.-J.M.); (D.T.)
| | - Eli-Jonathan Rogers
- Department of Medical Genetics, Armand-Trousseau Hospital, AP-HP, INSERM Unit U933, Sorbonne University, 75012 Paris, France; (N.O.); (E.-J.R.); (J.-P.S.)
| | | | - Daniel Thomas
- ART Unit, Drouot Laboratory, 75009 Paris, France; (L.R.); (M.-J.M.); (D.T.)
| | - Jean-Pierre Siffroi
- Department of Medical Genetics, Armand-Trousseau Hospital, AP-HP, INSERM Unit U933, Sorbonne University, 75012 Paris, France; (N.O.); (E.-J.R.); (J.-P.S.)
| | - Alexandre Rouen
- Maternity of Bluets, Medically Assisted Reproduction Service, 75012 Paris, France
- AP-HP, Hôtel-Dieu, Sleep and Vigilance Center, Université Paris Cité, VIFASOM, ERC 7330, 75010 Paris, France
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Yuan J, Jin L, Wang M, Wei S, Zhu G, Xu B. Detection of chromosome aberrations in 17 054 individuals with fertility problems and their subsequent assisted reproductive technology treatments in Central China. Hum Reprod 2023; 38:ii34-ii46. [PMID: 37982417 DOI: 10.1093/humrep/dead076] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 03/24/2023] [Indexed: 11/21/2023] Open
Abstract
STUDY QUESTION How do the types and frequency of chromosome aberrations in couples in central China affect fertility and ART treatment? SUMMARY ANSWER Men with chromosome aberrations or polymorphisms have an increased risk of semen quality impairment and infertility, and couples affected by reciprocal translocations had a lower pregnancy rate compared with other chromosome aberrations. WHAT IS KNOWN ALREADY Karyotyping is crucial for patients affected by infertility as chromosome aberrations play an important role in the etiology of male infertility. However, the influence of chromosome aberrations and polymorphisms on sperm motility and morphology remains controversial. Data on ART treatment outcomes in infertile couples affected by chromosome aberrations are insufficient. STUDY DESIGN, SIZE, DURATION We conducted a retrospective study involving 17 054 patients affected by infertility who underwent karyotyping in our center between January 2020 and May 2022. PARTICIPANTS/MATERIALS, SETTING, METHODS Karyotyping was performed on 17 054 patients with reproductive failure. All patients were from the central regions of China. The following data were collected from a medical records system using patient identification numbers: couples' ages, history of pregnancy and childbirth, type of infertility, years of infertility, cause of infertility, chromosome karyotypes, semen analysis results, assisted reproductive techniques performed, and treatment outcomes of ART. MAIN RESULTS AND THE ROLE OF CHANCE The incidence of chromosome aberrations was 2.04%; 2.49% in men and 1.57% in women. By analyzing the relationships between chromosome aberrations/polymorphisms and abnormal semen parameters, we found that there were significantly higher rates of asthenozoospermia, oligospermia, and teratozoospermia among men with Robertsonian translocations and sex chromosomal structural aberrations compared with those with normal karyotypes. Higher rates of asthenozoospermia and teratozoospermia were also observed among men with autosomal reciprocal translocations. The incidence of chromosome aberrations in azoospermic men (13.75%), and in men with cryptozoospermia or severe oligospermia (6.97%) was significantly higher than that in men with mild oligospermia or normospermia (0.88-2.12%). In addition, we found that the progressive movement of sperm is impaired in men with Chromosome 21 polymorphisms compared with men with normal karyotypes (39.46% ± 20.51% vs 48.61% ± 18.76%, P = 0.026). The percentage of morphologically normal forms was lower in the chromosomal polymorphism group than in the normal karyotype group (5.01% ± 2.41% vs 5.59% ± 2.14%, P = 0.001), especially in men with polymorphisms on Chromosome 9 (enlarged Chromosome 9 heterochromatin [9qh+]: 4.48% ± 2.22% vs 5.59% ± 2.14%, P = 0.006; pericentric inversion of Chromosome 9 [inv(9)]: 5.09% ± 3.11% vs 5.59% ± 2.14%, P = 0.008). ART treatment was successful in 36.00% of couples affected by chromosome aberrations. However, couples affected by reciprocal translocations achieved a lower pregnancy rate (24.07%), which may be due to the lower euploidy rates (27.31%) when compared with that in other chromosome aberrations. LIMITATIONS, REASONS FOR CAUTION First, although the initial cohort was large, chromosome aberrations were identified in a small number of patients. Second, the observational nature of the study design is limiting. Third, the couples affected by infertility in this study were all outpatients that did not undergo identical comprehensive examinations except for karyotyping, leading to the incomplete collection of medical records. Also, the population included in this study mainly focused on couples affected by infertility, which may not be included in the European Association of Urology (EAU) recommendation on male infertility. WIDER IMPLICATIONS OF THE FINDINGS Men with chromosome aberrations or polymorphisms have an increased risk of semen quality impairment and infertility. Constitutional chromosome analysis is recommended for men affected by infertility and severe oligospermia or azoospermia to facilitate early and appropriate guidance for the most suitable treatment. Carriers of chromosome aberrations can achieve acceptable pregnancy outcomes through IVF. However, couples affected by reciprocal translocations have lower pregnancy rates, and more treatment cycles are needed before a successful pregnancy. A possible explanation may be the fewer euploid embryos obtained. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by Grant 2021YFC2700603 from the National Key Research & Development Program of China. The authors declare no conflicts of interest. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Jiaying Yuan
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Lei Jin
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Mengting Wang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Shaman Wei
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Guijin Zhu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Bei Xu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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Wu S, Zhang J, Guan Y, Ren B, Zhang Y, Liu X, Wang K, Zhang M, Li Z. Effects of chromosomal translocation characteristics on fertilization and blastocyst development - a retrospective cohort study. BMC Med Genomics 2023; 16:273. [PMID: 37915045 PMCID: PMC10619257 DOI: 10.1186/s12920-023-01715-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 10/24/2023] [Indexed: 11/03/2023] Open
Abstract
OBJECTIVE To determine the effect of different translocation characteristics on fertilization rate and blastocyst development in chromosomal translocation patients. METHODS This retrospective cohort study was conducted at the Third Affiliated Hospital of Zhengzhou University From January 2017 to December 2022.All couples were diagnosed as reciprocal translocation or Robertsonian translocation by karyotype of peripheral blood lymphocytes test. After adjusting for confounding factors, the effect of chromosomal rearrangement characteristics, such as carrier sex, translocation type, chromosome length and break sites, on fertilization rate and embryo development were analysed separately using multiple linear regression. RESULTS In cases of Robertsonian translocation (RobT), the carrier sex plays an independent role in fertilization rate, and the male carriers was lower than that of female carriers (76.16% vs.86.26%, P = 0.009). In reciprocal translocation (RecT), the carrier sex, chromosome types and break sites had no influence on fertilization rate, blastocyst formation rate (P > 0.05). However, patients with human longer chromosomal (chromosomes 1-5) translocation have a lower available blastocyst formation rate (Group AB vs. Group CD: 41.49%vs.46.01%, P = 0.027). For male carriers, the translocation types was an independent factor affecting the fertilization rate, and the RobT was the negative one (B = - 0.075, P = 0 0.009). In female carriers, we did not observe this difference (P = 0.227). CONCLUSIONS In patients with chromosomal translocation, the fertilization rate may be influenced by carrier sex and translocation type, chromosomes 1-5 translocation may adversely affect the formation of available blastocysts. Break sites have no role in fertilization and blastocyst development.
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Affiliation(s)
- Shanshan Wu
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianrui Zhang
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yichun Guan
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Bingnan Ren
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuchao Zhang
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xinmi Liu
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Kexin Wang
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mingmei Zhang
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhen Li
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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Fu M, Chen M, Guo N, Lin M, Li Y, Huang H, Cai M, Xu L. Molecular genetic analysis of 1,980 cases of male infertility. Exp Ther Med 2023; 26:345. [PMID: 37383371 PMCID: PMC10294593 DOI: 10.3892/etm.2023.12044] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 01/17/2023] [Indexed: 06/30/2023] Open
Abstract
The present study aimed to investigate the occurrence of chromosomal karyotype abnormalities and azoospermia factor (AZF) microdeletion on the long arm of the Y chromosome (Yq) in infertile men, and to determine their association with infertility to ultimately improve clinical outcomes in these patients. A total of 1,980 azoospermic and oligospermic men from the outpatient department of the Fujian Maternity and Child Health Hospital (Fuzhou, China) were recruited between January 2016 and December 2019. Peripheral blood was used for karyotype analysis; AZF microdeletion analysis of the Yq was performed using capillary electrophoresis. Among the 1,980 patients, 178 had chromosomal abnormalities (9.0%; 178/1,980), of whom 98 had an abnormal number of chromosomes. Among the abnormal karyotypes, the most common was 47, XXY (80/178; 44.9%). AZF microdeletion on the Yq occurred at a rate of 10.66% (211/1,980); the most common type was the AZFb/c deletion (sY1192; 140/211; 66.4%). The present findings showed that karyotype abnormalities and AZF gene microdeletion are important drivers of male infertility. Specifically, men with Yqh- and del(Y)(q11) had a higher risk of AZF microdeletion. These results suggested that patient treatment could be personalized based on routine molecular genetic analysis, which could further alleviate the economic and emotional burden of undergoing redundant or ineffective treatments.
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Affiliation(s)
- Meimei Fu
- Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fuzhou, Fujian 350001, P.R. China
| | - Meihuan Chen
- Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fuzhou, Fujian 350001, P.R. China
| | - Nan Guo
- Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fuzhou, Fujian 350001, P.R. China
| | - Min Lin
- Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fuzhou, Fujian 350001, P.R. China
| | - Ying Li
- Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fuzhou, Fujian 350001, P.R. China
| | - Hailong Huang
- Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fuzhou, Fujian 350001, P.R. China
| | - Meiying Cai
- Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fuzhou, Fujian 350001, P.R. China
| | - Liangpu Xu
- Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defects, Fuzhou, Fujian 350001, P.R. China
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Moretti E, Signorini C, Noto D, Corsaro R, Collodel G. The relevance of sperm morphology in male infertility. FRONTIERS IN REPRODUCTIVE HEALTH 2022; 4:945351. [PMID: 36303645 PMCID: PMC9580829 DOI: 10.3389/frph.2022.945351] [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: 05/16/2022] [Accepted: 07/11/2022] [Indexed: 11/23/2022] Open
Abstract
This brief report concerns the role of human sperm morphology assessment in different fields of male infertility: basic research, genetics, assisted reproduction technologies, oxidative stress. One of the best methods in studying sperm morphology is transmission electron microscopy (TEM) that enables defining the concept of sperm pathology and classifying alterations in non-systematic and systematic. Non-systematic sperm defects affect head and tail in variable ratio, whereas the rare systematic defects are characterized by a particular anomaly that marks most sperm of an ejaculate. TEM analysis and fluorescence in situ hybridization represent outstanding methods in the study of sperm morphology and cytogenetic in patients with altered karyotype characterizing their semen quality before intracytoplasmic sperm injection. In recent years, the genetic investigations on systematic sperm defects, made extraordinary progress identifying candidate genes whose mutations induce morphological sperm anomalies. The question if sperm morphology has an impact on assisted fertilization outcome is debated. Nowadays, oxidative stress represents one of the most important causes of altered sperm morphology and function and can be analyzed from two points of view: 1) spermatozoa with cytoplasmic residue produce reactive oxygen species, 2) the pathologies with inflammatory/oxidative stress background cause morphological alterations. Finally, sperm morphology is also considered an important endpoint in in vitro experiments where toxic substances, drugs, antioxidants are tested. We think that the field of sperm morphology is far from being exhausted and needs other research. This parameter can be still considered a valuable indicator of sperm dysfunction both in basic and clinical research.
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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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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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Braham A, Ghedir H, Zidi I, Sallem A, Hajlaoui A, Ajina M, Saad A, Ibala‐Romdhane S. Nuclear sperm quality in total polymorphic teratozoospermia and its impact on intracytoplasmic sperm injection outcome. Andrologia 2019; 51:e13252. [DOI: 10.1111/and.13252] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 01/14/2019] [Accepted: 01/17/2019] [Indexed: 12/16/2022] Open
Affiliation(s)
- Asma Braham
- Department of Cytogenetic and Reproductive Biology Farhat Hached University Hospital Sousse Tunisia
| | - Houda Ghedir
- Department of Cytogenetic and Reproductive Biology Farhat Hached University Hospital Sousse Tunisia
| | - Ines Zidi
- Department of Cytogenetic and Reproductive Biology Farhat Hached University Hospital Sousse Tunisia
| | - Amira Sallem
- Department of Cytogenetic and Reproductive Biology Farhat Hached University Hospital Sousse Tunisia
| | - Amani Hajlaoui
- Department of Cytogenetic and Reproductive Biology Farhat Hached University Hospital Sousse Tunisia
| | - Mounir Ajina
- Reproductive Medicine Unit Farhat Hached University Hospital Sousse Tunisia
- Faculty of Medicine of Sousse Farhat Hached Hospital, University of Sousse Sousse Tunisia
| | - Ali Saad
- Department of Cytogenetic and Reproductive Biology Farhat Hached University Hospital Sousse Tunisia
- Faculty of Medicine of Sousse Farhat Hached Hospital, University of Sousse Sousse Tunisia
| | - Samira Ibala‐Romdhane
- Department of Cytogenetic and Reproductive Biology Farhat Hached University Hospital Sousse Tunisia
- Faculty of Medicine of Sousse Farhat Hached Hospital, University of Sousse Sousse Tunisia
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9
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Wiland E, Olszewska M, Huleyuk N, Chernykh VB, Kurpisz M. The effect of Robertsonian translocations on the intranuclear positioning of NORs (nucleolar organizing regions) in human sperm cells. Sci Rep 2019; 9:2213. [PMID: 30778082 PMCID: PMC6379386 DOI: 10.1038/s41598-019-38478-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 11/27/2018] [Indexed: 01/26/2023] Open
Abstract
Only a few studies have described sperm chromosome intranuclear positioning changes in men with reproductive failure and an incorrect somatic karyotype. We studied the influence of Robertsonian translocations on the acrocentric chromosome positioning in human sperm cells. The basis of the analysis was the localization of NORs (nucleolar organizing regions) in sperm nuclei from three Robertsonian translocation carriers, namely, rob(13;22), rob(13;15) and rob(13;14), with a known meiotic segregation pattern. All three carriers presented with a similar percentage of genetically normal sperm cells (i.e., approximately 40%). To visualize NORs, we performed 2D-FISH with directly labelled probes. We used the linear and radial topologies of the nucleus to analyse the NORs distribution. We found an affected positioning of NORs in each case of the Robertsonian translocations. Moreover, the NORs tended to group, most often in two clusters. Both in Robertsonian carriers and control sperm cells, NORs mostly colocalized in the medial areas of the nuclei. In the case of the Roberstonian carriers, NORs were mostly concentrated in the peripheral part of the medial area, in contrast to control sperm cells in which the distribution was more dispersed towards the internal area.
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Affiliation(s)
- Ewa Wiland
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland
| | - Marta Olszewska
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland
| | - Nataliya Huleyuk
- Institute of Hereditary Pathology, Ukrainian Academy of Medical Sciences, Lviv, Ukraine
| | - Vyacheslav B Chernykh
- Research Centre for Medical Genetics, Russian Academy of Medical Sciences, Moscow, Russian Federation
| | - Maciej Kurpisz
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland.
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García-Vielma C, Imelda Dávila-Rodríguez M, Cortés-Gutiérrez EI. Chromosome segregation and chromatin integrity in spermatozoa from a t(2;8)(p24;p21)mat carrier: A case-report. Int J Reprod Biomed 2018. [DOI: 10.29252/ijrm.16.9.601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Lamotte A, Martinez G, Devillard F, Hograindleur JP, Satre V, Coutton C, Harbuz R, Amblard F, Lespinasse J, Benchaib M, Bessonnat J, Brouillet S, Hennebicq S. Is sperm FISH analysis still useful for Robertsonian translocations? Meiotic analysis for 23 patients and review of the literature. Basic Clin Androl 2018; 28:5. [PMID: 29760927 PMCID: PMC5937048 DOI: 10.1186/s12610-018-0069-z] [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: 12/06/2017] [Accepted: 03/08/2018] [Indexed: 01/09/2023] Open
Abstract
Background Robertsonian translocations (RobT) are common structural chromosome rearrangements where carriers display a majority of chromosomally balanced spermatozoa from alternate segregation mode. According to some monotony observed in the rates of balanced segregation, is sperm FISH analysis obsolete for RobT carriers? Methods Retrospective cohort research study on 23 patients analyzed in our center from 2003 to 2017 and compared to the data of 187 patients in literature from 1983 to 2017. Robertsonian translocation carriers were divided in six groups according to the chromosomes involved in the translocation: 9 patients from our center and 107 from literature carrying 45,XY,der(13;14) karyotype, 3 and 35 patients respectively with 45,XY,der(14;21), 5 and 11 patients respectively with 45,XY,der(13;15), 4 and 7 patients respectively with 45,XY,der(14;15), 1 and 4 patients respectively with 45,XY,der(13;22),and 1 and 10 patients respectively with 45,XY,der(14;22). Results Alternate segregation mode is predominant in our group of Robertsonian translocation carriers with 73.45% ±8.05 of balanced spermatozoa (min 50.92%; max 89.99%). These results are compliant with the data from literature for all translocations types (p > 0.05) and are consistent among the different types of Robertsonian translocations (p > 0.05) except for der(13;15) that exhibit lower balanced spermatozoa rates (p < 0.05 versus der(13;14), der(14;21), (13;21) and der(15;22)). Normozoospermic patients also display a significantly (p < 0.01) higher rate of balanced sperm cells than patients with abnormal seminograms whatever the defect implied. Conclusions According to the discrepancies observed between der(13;15) and all the other Rob T carriers, the differences observed among patients presenting normal and abnormal sperm parameters and the input in genetical counselling, sperm FISH does not seem obsolete for these patients. Moreover, it seems important to collect more data for rare RobT.
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Affiliation(s)
- Anna Lamotte
- CHU de Grenoble, UF de Biologie de la procréation, F-38000 Grenoble, France.,3Université Grenoble Alpes, F-38000 Grenoble, France
| | - Guillaume Martinez
- CHU de Grenoble, UF de Génétique Chromosomique, F-38000 Grenoble, France.,3Université Grenoble Alpes, F-38000 Grenoble, France.,Team 'Genetics Epigenetics and Therapies of Infertility', Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, F-38000 Grenoble, France
| | | | - Jean-Pascal Hograindleur
- 3Université Grenoble Alpes, F-38000 Grenoble, France.,Team 'Genetics Epigenetics and Therapies of Infertility', Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, F-38000 Grenoble, France
| | - Véronique Satre
- CHU de Grenoble, UF de Génétique Chromosomique, F-38000 Grenoble, France.,3Université Grenoble Alpes, F-38000 Grenoble, France.,Team 'Genetics Epigenetics and Therapies of Infertility', Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, F-38000 Grenoble, France
| | - Charles Coutton
- CHU de Grenoble, UF de Génétique Chromosomique, F-38000 Grenoble, France.,3Université Grenoble Alpes, F-38000 Grenoble, France.,Team 'Genetics Epigenetics and Therapies of Infertility', Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, F-38000 Grenoble, France
| | - Radu Harbuz
- CHU de Grenoble, UF de Génétique Chromosomique, F-38000 Grenoble, France
| | - Florence Amblard
- CHU de Grenoble, UF de Génétique Chromosomique, F-38000 Grenoble, France
| | | | | | - Julien Bessonnat
- CHU de Grenoble, UF de Biologie de la procréation, F-38000 Grenoble, France
| | - Sophie Brouillet
- CHU de Grenoble, UF de Biologie de la procréation, F-38000 Grenoble, France.,3Université Grenoble Alpes, F-38000 Grenoble, France
| | - Sylviane Hennebicq
- CHU de Grenoble, UF de Biologie de la procréation, F-38000 Grenoble, France.,3Université Grenoble Alpes, F-38000 Grenoble, France.,Team 'Genetics Epigenetics and Therapies of Infertility', Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, F-38000 Grenoble, France
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12
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Potential selection of genetically balanced spermatozoa based on the hypo-osmotic swelling test in chromosomal rearrangement carriers. Reprod Biomed Online 2017; 35:372-378. [DOI: 10.1016/j.rbmo.2017.06.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 06/11/2017] [Accepted: 06/14/2017] [Indexed: 11/19/2022]
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13
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Moretti E, Sutera G, Collodel G. The importance of transmission electron microscopy analysis of spermatozoa: Diagnostic applications and basic research. Syst Biol Reprod Med 2016; 62:171-83. [PMID: 26980361 DOI: 10.3109/19396368.2016.1155242] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
UNLABELLED This review is aimed at discussing the role of ultrastructural studies on human spermatozoa and evaluating transmission electron microscopy as a diagnostic tool that can complete andrology protocols. It is clear that morphological sperm defects may explain decreased fertilizing potential and acquire particular value in the field of male infertility. Electron microscopy is the best method to identify systematic or monomorphic and non-systematic or polymorphic sperm defects. The systematic defects are characterized by a particular anomaly that affects the vast majority of spermatozoa in a semen sample, whereas a heterogeneous combination of head and tail defects found in variable percentages are typically non-systematic or polymorphic sperm defects. A correct diagnosis of these specific sperm alterations is important for choosing the male infertility's therapy and for deciding to turn to assisted reproduction techniques. Transmission electron microscopy (TEM) also represents a valuable method to explore the in vitro effects of different compounds (for example drugs with potential spermicidal activity) on the morphology of human spermatozoa. Finally, TEM used in combination with immunohistochemical techniques, integrates structural and functional aspects that provide a wide horizon in the understanding of sperm physiology and pathology. ABBREVIATIONS transmission electron microscopy: TEM; World Health Organization: WHO; light microscopy: LM; motile sperm organelle morphology examination: MSOME; intracytoplasmic morphologically selected sperm injection: IMSI; intracytoplasmic sperm injection: ICSI; dysplasia of fibrous sheath: DFS; primary ciliary dyskinesia: PCD; outer dense fibers: ODF; assisted reproduction technologies: ART; scanning electron microscopy: SEM; polyvinylpirrolidone: PVP; tert-butylhydroperoxide: TBHP.
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Affiliation(s)
- Elena Moretti
- a Department of Molecular and Developmental Medicine , University of Siena , Siena , Italy
| | - Gaetano Sutera
- a Department of Molecular and Developmental Medicine , University of Siena , Siena , Italy
| | - Giulia Collodel
- a Department of Molecular and Developmental Medicine , University of Siena , Siena , Italy
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14
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Godo A, Blanco J, Vidal F, Sandalinas M, Garcia-Guixé E, Anton E. Altered segregation pattern and numerical chromosome abnormalities interrelate in spermatozoa from Robertsonian translocation carriers. Reprod Biomed Online 2015; 31:79-88. [DOI: 10.1016/j.rbmo.2015.04.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 04/08/2015] [Accepted: 04/08/2015] [Indexed: 12/23/2022]
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15
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Rouen A, Lavillaureix A, Hyon C, Heide S, Clède S, Balet R, Kott E, Cassuto NG, Siffroi JP. Nuclear volume differences between balanced and unbalanced spermatozoa in chromosomal translocation carriers. Reprod Biomed Online 2015; 30:290-5. [DOI: 10.1016/j.rbmo.2014.10.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 10/29/2014] [Accepted: 10/29/2014] [Indexed: 10/24/2022]
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16
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Díaz de Barboza G, Rodríguez V, Ponce R, Theiler G, Maldonado C, Tolosa de Talamoni N. Association of cellular and molecular alterations in Leydig cells with apoptotic changes in germ cells from testes of Graomys griseoflavus×Graomys centralis male hybrids. Acta Histochem 2014; 116:1037-45. [PMID: 24894511 DOI: 10.1016/j.acthis.2014.04.007] [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: 11/05/2013] [Revised: 04/08/2014] [Accepted: 04/22/2014] [Indexed: 12/28/2022]
Abstract
Spermatogenesis is disrupted in Graomys griseoflavus×Graomys centralis male hybrids. This study was aimed to determine whether morphological alterations in Leydig cells from hybrids accompany the arrest of spermatogenesis and cell death of germ cells and whether apoptotic pathways are also involved in the response of these interstitial cells. We used three groups of 1-, 2- and 3-month-old male animals: (1) G. centralis, (2) G. griseoflavus and (3) hybrids obtained by crossing G. griseoflavus females with G. centralis males. Testicular ultrastructure was analyzed by transmission electron microscopy. TUNEL was studied using an in situ cell death detection kit and the expression of apoptotic molecules by immunohistochemistry. The data confirmed arrest of spermatogenesis and intense apoptotic processes of germ cells in hybrids. These animals also showed ultrastructural alterations in the Leydig cells. Fas, FasL and calbindin D28k overexpression without an increase in DNA fragmentation was detected in the Leydig cells from hybrids. In conclusion, the sterility of Graomys hybrids occurs with ultrastructural changes in germ and Leydig cells. The enhancement of Fas and FasL is not associated with cell death in the Leydig cells. Probably the apoptosis in these interstitial cells is inhibited by the high expression of the antiapoptotic molecule calbindin D28k.
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17
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Pylyp LY, Spinenko LA, Zukin VD, Bilko NM. Meiotic segregation of chromosomes 13 and 14 in sperm of heterozygous Robertsonian translocation der(13;14)(q10;q10) carriers. CYTOL GENET+ 2014. [DOI: 10.3103/s0095452714030086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Chromosomal segregation in sperm of Robertsonian translocation carriers. J Assist Reprod Genet 2013; 30:1141-5. [PMID: 23893157 DOI: 10.1007/s10815-013-0067-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 07/19/2013] [Indexed: 10/26/2022] Open
Abstract
PURPOSE To study meiotic segregation patterns of Robertsonian translocations in sperm of male carriers and to assess the frequencies of unbalanced sperm formation. METHODS FISH with combination of probes to detect all the variants of meiotic segregation was performed on decondensed sperm nuclei of 5 carriers of der(13;14), 3 carriers of der(14;21) and one carrier of a rare der(13;21) translocation. RESULTS The frequency of sperm with alternate segregation and normal/balanced chromosomal complement ranged from 68 % to 94.4 % (mean 79.2 ± 8.4). Adjacent segregation was detected in 17.9 ± 7.3 % of sperm (from 5.6 % to 29 %). No significant differences in frequencies of gametes with nullisomies and disomies of chromosomes involved in translocations were observed. The mean frequency of 3:0 segregation products was 2.5 ± 1.4 %. CONCLUSIONS All analyzed patients showed homogenous segregation pattern with clear predominance of alternate segregation resulting in normal/balanced sperm production. Still, from 5.8-32 % (mean 20.4 ± 8.3 %) of sperm was unbalanced, which is the evidence of the increased risk of unbalanced offspring in carriers of Robertsonian translocations. Our results highlight the importance of genetic counseling of Robertsonian translocation carriers prior to ICSI or IVF.
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19
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Perrin A, Nguyen MH, Bujan L, Vialard F, Amice V, Guéganic N, Douet-Guilbert N, De Braekeleer M, Morel F. DNA fragmentation is higher in spermatozoa with chromosomally unbalanced content in men with a structural chromosomal rearrangement. Andrology 2013; 1:632-8. [DOI: 10.1111/j.2047-2927.2013.00100.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Revised: 04/22/2013] [Accepted: 04/22/2013] [Indexed: 01/30/2023]
Affiliation(s)
| | | | | | | | - V. Amice
- Service de Cytogénétique; Cytologie et Biologie de la Reproduction; Hôpital Morvan; CHRU Brest; Brest
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20
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Brugnon F, Ouchchane L, Pons-Rejraji H, Artonne C, Farigoule M, Janny L. Density gradient centrifugation prior to cryopreservation and hypotaurine supplementation improve post-thaw quality of sperm from infertile men with oligoasthenoteratozoospermia. Hum Reprod 2013; 28:2045-57. [PMID: 23760160 DOI: 10.1093/humrep/det253] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
STUDY QUESTION Can selection of spermatozoa by density gradient centrifugation prior to cryopreservation and/or hypotaurine supplementation improve the post-thaw quality of sperm from infertile men with oligoasthenoteratozoospermia? SUMMARY ANSWER Sperm selection by density gradient centrifugation before freezing and supplementation of the media by hypotaurine is beneficial for the cryopreservation of semen samples of patients with oligoasthenoteratozoospermia. WHAT IS KNOWN ALREADY Sperm from men with oligoasthenoteratozoospermia are more susceptible than normal to cryoinjury. Density gradient centrifugation before sperm freezing may allow the selection of a subpopulation of spermatozoa more resistant to cryopreservation. Hypotaurine is an antioxidant with a protective effect on sperm functions. STUDY DESIGN, SIZE, DURATION The experiment was carried out according to a factorial design involving two binary factors resulting in four treatment combinations which were randomly allocated in oligoasthenoteratozoospermia sperm samples from 64 patients recruited between January 2009 and June 2010. PARTICIPANTS/MATERIALS, SETTING, METHODS Semen was provided by 64 men undergoing evaluation for infertility at the Centre for Reproductive Medicine of the University Hospital in Clermont-Ferrand, France, between January 2009 and June 2010. Four treatment combinations were tested: sperm freezing before selection without (F-S/H-; n = 16) and with hypotaurine supplementation (F-S/H+; n = 16); sperm selection before freezing without (S-F/H-; n = 16) and with hypotaurine supplementation (S-F/H+; n = 16). Measurements of sperm recovery rates and markers of apoptosis (externalization of phosphatidylserine (PS), mitochondrial membrane potential and DNA fragmentation) were compared in recovered spermatozoa after each procedure. MAIN RESULTS AND THE ROLE OF CHANCE Higher recovery rates of progressive and total motile spermatozoa were observed when sperm selection was performed before freezing (P < 0.05). The protective effect of hypotaurine was only observed on the percentage of live spermatozoa with PS externalization among total live spermatozoa (AN+ PI-/((AN+ PI-) + (AN- PI-)) when the sperm selection by density gradient centrifugation was performed before freezing (S-F/H+ versus S-F/H-: 6.8 ± 1.09 versus 11.8 ± 2.03%, P = 0.04). The percentage of mitochondrial membrane potential (DiOC6(3) (high)) spermatozoa was higher (P = 0.001) when sperm selection was done before freezing compared with procedures in which sperm selection was done after sperm freezing with (S-F/H+ versus F-S/H+: 58.1 ± 3.50 versus 46.7 ± 5.48%) or without (S-F/H- versus F-S/H-: 57.0 ± 5.18 versus 35.4 ± 4.99%) hypotaurine supplementation. The percentages of TUNEL+ spermatozoa were significantly lower (P = 0.001) when sperm selection was done before sperm freezing compared with procedures in which sperm selection was done after sperm freezing with (S-F/H+ versus F-S/H+: 38.6 ± 9.59 versus 55.7 ± 5.88%) or without hypotaurine supplementation (S-F/H- versus F-S/H-: 37.2 ± 7.91 versus 71.0 ± 5.66%). LIMITATIONS, REASONS FOR CAUTION The ICSI outcomes were not assessed and the fertility of the spermatozoa remains unknown. WIDER IMPLICATIONS OF THE FINDINGS Sperm selection by density gradient centrifugation before freezing and hypotaurine supplementation could improve the cryopreservation of sperm from oligoasthenoteratozoospermic men and make a larger number of functional spermatozoa available for ICSI. STUDY FUNDING/COMPETING INTERETS(S) This work was supported by a hospital grant (Projet Hospitalier Recherche Clinique, CHU Clermont Ferrand, France). None of the authors has any conflict of interest to declare.
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Affiliation(s)
- F Brugnon
- Assistance Médicale á la Procréation, CECOS, CHU Clermont Ferrand, CHU Estaing, place Aubrac, 63000 Clermont Ferrand, France.
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21
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Ferfouri F, Boitrelle F, Clement P, Molina Gomes D, Selva J, Vialard F. Sperm FISH analysis of a 44,X,der(Y),t(Y;15)(q12;q10)pat,rob(13;14)(q10;q10)mat complex chromosome rearrangement. Andrologia 2013; 46:576-82. [DOI: 10.1111/and.12112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2013] [Indexed: 01/15/2023] Open
Affiliation(s)
- F. Ferfouri
- Department of Reproductive Biology, Cytogenetics, Gynecology and Obstetrics; Poissy Saint Germain Hospital; Poissy France
- EA 2493; University of Versailles Saint-Quentin-en-Yvelines; Versailles France
| | - F. Boitrelle
- Department of Reproductive Biology, Cytogenetics, Gynecology and Obstetrics; Poissy Saint Germain Hospital; Poissy France
- EA 2493; University of Versailles Saint-Quentin-en-Yvelines; Versailles France
| | | | - D. Molina Gomes
- Department of Reproductive Biology, Cytogenetics, Gynecology and Obstetrics; Poissy Saint Germain Hospital; Poissy France
- EA 2493; University of Versailles Saint-Quentin-en-Yvelines; Versailles France
| | - J. Selva
- Department of Reproductive Biology, Cytogenetics, Gynecology and Obstetrics; Poissy Saint Germain Hospital; Poissy France
- EA 2493; University of Versailles Saint-Quentin-en-Yvelines; Versailles France
| | - F. Vialard
- Department of Reproductive Biology, Cytogenetics, Gynecology and Obstetrics; Poissy Saint Germain Hospital; Poissy France
- EA 2493; University of Versailles Saint-Quentin-en-Yvelines; Versailles France
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Enciso M, Alfarawati S, Wells D. Increased numbers of DNA-damaged spermatozoa in samples presenting an elevated rate of numerical chromosome abnormalities. Hum Reprod 2013; 28:1707-15. [PMID: 23526303 DOI: 10.1093/humrep/det077] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
STUDY QUESTION Is there a relationship between DNA damage and numerical chromosome abnormalities in the sperm of infertile patients? SUMMARY ANSWER A strong link between DNA fragmentation and the presence of numerical chromosome abnormalities was detected in human sperm. Chromosomally abnormal spermatozoa were more likely to be affected by DNA fragmentation than those that were chromosomally normal. WHAT IS KNOWN ALREADY Several studies have described the presence of elevated levels of DNA damage or chromosome defects in the sperm of infertile or subfertile men. However, the nature of the relationship between sperm DNA damage and chromosome abnormalities is poorly understood. The fact that some assisted reproductive techniques have the potential to allow abnormal spermatozoa to achieve oocyte fertilization has led to concerns that pregnancies achieved using such methods may be at elevated risk of genetic anomalies. STUDY DESIGN, SIZE, DURATION For this prospective study, semen samples were collected from 45 infertile men. PARTICIPANTS, SETTING, METHODS Samples were assessed for DNA fragmentation using the Sperm Chromatin Dispersion Test (SCDt) and for chromosome abnormalities using multi-colour fluorescence in situ hybridization (FISH) with probes specific to chromosomes 13, 16, 18, 21, 22, X and Y. Additionally, both parameters were assessed simultaneously in 10 of the samples using a protocol combining SCDt and FISH. MAIN RESULTS AND THE ROLE OF CHANCE A significant correlation between the proportion of sperm with a numerical chromosome abnormality and the level of DNA fragmentation was observed (P < 0.05). Data from individual spermatozoa subjected to combined chromosome and DNA fragmentation analysis indicated that chromosomally abnormal sperm cells were more likely to display DNA damage than those that were normal for the chromosomes tested (P < 0.05). Not only was this association detected in samples with elevated levels of numerical chromosome abnormalities, but it was also evident in samples with chromosome abnormality rates in the normal range. LIMITATIONS, REASONS FOR CAUTION The inability to assess the entire chromosome complement is the main limitation of all studies aimed at assessing numerical chromosome abnormalities in sperm samples. As a result, some of the sperm classified as 'chromosomally normal' may be aneuploid for chromosomes that were not tested. WIDER IMPLICATIONS OF THE FINDINGS During spermatogenesis, apoptosis (a process that involves active DNA degradation) acts to eliminate abnormal sperm. Failure to complete apoptosis may explain the coincident detection of aneuploidy and DNA fragmentation in some spermatozoa. In addition to shedding light on the biological mechanisms involved in the processing of defective sperm, this finding may also be of clinical relevance for the identification of patients at increased risk of miscarriage or chromosomally abnormal pregnancy. In some instances, detection of elevated sperm DNA fragmentation may indicate the presence of chromosomal abnormalities. It may be worth considering preimplantation genetic screening (PGS) of embryos produced using such samples in order to minimize the risk of aneuploidy.
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Affiliation(s)
- M Enciso
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
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23
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Simultaneous cell by cell study of both DNA fragmentation and chromosomal segregation in spermatozoa from chromosomal rearrangement carriers. J Assist Reprod Genet 2013; 30:383-90. [PMID: 23288665 DOI: 10.1007/s10815-012-9915-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 12/05/2012] [Indexed: 12/26/2022] Open
Abstract
PURPOSE Balanced chromosomal translocations are found in one out of 500 subjects in the general population. They usually do not carry any phenotypic consequences, except for possible infertility and for the production of unbalanced gametes leading to spontaneous abortions or chromosomal syndromes in the offspring. An association between chromosomal rearrangements and increased apoptosis markers has been demonstrated on a global scale in sperm samples of translocation and inversion carriers. In order to specify which kind of sperm cells is subject to an increased apoptosis process, this present study was aimed to analyse both chromosomal segregation and DNA fragmentation, sperm cell by sperm cell. METHODS Six patients carrying a chromosomal rearrangement (three reciprocal translocations, two Robertsonian translocations, and one chromosomal pericentric inversion) were included in a retrospective manner. Both DNA fragmentation and chromosomal segregation in spermatozoa were evaluated simultaneously using a modified TUNEL assay associated with FISH. Two thousand spermatozoa were analysed for each patient. RESULTS We showed a higher proportion of spermatozoa with fragmented DNA among the unbalanced sperm cells, compared to the balanced ones, in all six patients. CONCLUSIONS These results suggest an increased fragility of unbalanced spermatozoa to exogenous fragmentation factors. The exact mechanisms of those processes remain to be elucidated.
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Ferfouri F, Boitrelle F, Clément P, Molina Gomes D, Selva J, Vialard F. Can one translocation impact the meiotic segregation of another translocation? A sperm-FISH analysis of a 46,XY,t(1;16)(q21;p11.2),t(8;9) (q24.3;p24) patient and his 46,XY,t(8;9)(q24.3;p24) brother and cousin. ACTA ACUST UNITED AC 2012; 19:109-17. [DOI: 10.1093/molehr/gas048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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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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Streichemberger E, Perrin J, Saias-Magnan J, Karsenty G, Malzac P, Grillo JM, Mitchell MJ, Metzler-Guillemain C. Case report of apoptosis in testis of four AZFc-deleted patients: increased DNA fragmentation during meiosis, but decreased apoptotic markers in post-meiotic germ cells. Hum Reprod 2012; 27:1939-45. [DOI: 10.1093/humrep/des128] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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Sperm FISH analysis of a 46,XY,t(3;6)(p24;p21.2),inv (8)(p11;2q21.2) double chromosomal rearrangement. Reprod Biomed Online 2012; 24:219-23. [DOI: 10.1016/j.rbmo.2011.10.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 08/29/2011] [Accepted: 10/18/2011] [Indexed: 11/16/2022]
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The chromosomal risk in sperm from heterozygous Robertsonian translocation carriers is related to the sperm count and the translocation type. Fertil Steril 2011; 96:1337-43. [DOI: 10.1016/j.fertnstert.2011.09.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 08/29/2011] [Accepted: 09/01/2011] [Indexed: 11/17/2022]
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García-Peiró A, Oliver-Bonet M, Navarro J, Abad C, Guitart M, Amengual MJ, Gosálvez J, Benet J. Dynamics of sperm DNA fragmentation in patients carrying structurally rearranged chromosomes. ACTA ACUST UNITED AC 2011; 34:e546-53. [DOI: 10.1111/j.1365-2605.2011.01153.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Su L, Deng Y, Zhang Y, Li C, Zhang R, Sun Y, Zhang K, Li J, Yao S. Protective effects of grape seed procyanidin extract against nickel sulfate-induced apoptosis and oxidative stress in rat testes. Toxicol Mech Methods 2011; 21:487-94. [PMID: 21417627 DOI: 10.3109/15376516.2011.556156] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
This study determined whether nickel sulfate (Ni)-induced reproductive damage occurs via apoptosis and oxidative stress and to examine the expression of Bax and c-kit and their effects on Ni exposure. The study also explored the protective effects of grape seed proanthocyanidin extract (GSPE) against Ni toxicity in the testes. Wistar rats were treated with normal saline, Ni alone (1.25, 2.5, and 5 mg/kg/day), and Ni (2.5 mg/kg/day) plus GSPE (50 and 100 mg/kg/day). After 30 days, Ni significantly decreased sperm motility and the percentage of S-phase cells and enhanced testicular apoptosis in the 2.5 and 5 mg groups. The levels of malondialdehyde (MDA), hydrogen peroxide (H₂O₂), and nitric oxide (NO) significantly increased. The decreased activity of glutathione peroxidase and catalase in the Ni groups showed that Ni could increase oxidative stress, especially at 2.5 and 5 mg. Western blot analysis showed that the expression of Bax protein and c-kit increased in 2.5 and 5 mg Ni groups compared with controls. Conversely, these changes were partially attenuated in rats simultaneously administered GSPE, especially in the 100 mg group. These results demonstrate the following: (1) Ni exhibits reproductive toxicity in rats by decreasing sperm at concentrations of 2.5 and 5 mg; (2) intratesticular apoptosis, oxidative stress, and c-kit overexpression play pivotal roles in reproductive damage induced by Ni; and (3) GSPE enhances sperm motility by down-regulating c-kit expression and offsetting the apoptosis and oxidative stress induced by Ni by directly decreasing MDA and NO, scavenging H₂O₂, and down-regulating Bax expression.
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Affiliation(s)
- Li Su
- School of Life Sciences, Lanzhou University, Lanzhou, P.R. China
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Perrin A, Basinko A, Douet-Guilbert N, Gueganic N, Le Bris MJ, Amice V, De Braekeleer M, Morel F. Aneuploidy and DNA fragmentation in sperm of carriers of a constitutional chromosomal abnormality. Cytogenet Genome Res 2011; 133:100-6. [PMID: 21311180 DOI: 10.1159/000323980] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Among various causes responsible for infertility, it has been admitted for a long time that male infertility can be due to impaired spermatogenesis and/or balanced structural chromosomal abnormalities. Sperm DNA fragmentation is also considered as another cause of infertility. Most of the studies on male infertility have concerned either aneuploidy in the sperm of carriers of constitutional chromosomal abnormalities or sperm DNA fragmentation. This review is aimed at analyzing these 2 parameters in the same patients. Furthermore, we present work on the study of these 2 parameters in the same gametes of 4 carriers of a balanced chromosomal abnormality. Meiotic segregation was analyzed by fluorescent in situ hybridization and DNA fragmentation was detected by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling assay. It was shown that aneuploidy and DNA fragmentation were increased in the sperm of carriers of a balanced chromosomal abnormality. For all 4 carriers of a balanced structural abnormality, there was a 2-5 times higher proportion of spermatozoa with unbalanced chromosomal content and fragmented DNA than among those with normal/balanced content. Moreover, we found a non-random distribution with more gametes with DNA fragmentation when these arose from a particular segregation mode. The mechanism which would tend to explain our results is abortive apoptosis. In conclusion, both meiotic segregation and DNA fragmentation studies should be integrated in the genetic exploration of male carriers of a chromosomal structural abnormality.
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Affiliation(s)
- A Perrin
- Laboratoire d'Histologie, Embryologie et Cytogénétique, Université de Bretagne Occidentale, Faculté de Médecine et des Sciences de la Santé, INSERM U613, Brest, France
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