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Jiang L, Kong F, Yao L, Zhang F, Wu L, Zhang H, Yang G, Wang S, Jin X, Wang X, Tong X, Zhang S. Successful intracytoplasmic sperm injection in a macrozoospermia case with novel compound heterozygous aurora kinase C (AURKC) mutations. Arch Gynecol Obstet 2024:10.1007/s00404-024-07619-7. [PMID: 39133293 DOI: 10.1007/s00404-024-07619-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 06/18/2024] [Indexed: 08/13/2024]
Abstract
PURPOSE To explore the application possibility of macrocephalic sperm from a patient with 100% macrocephalic sperm and AURKC gene variations. METHODS We diagnosed a case of macrozoospermia with 100% macrocephalic sperm and 39.5% multi-tailed spermatozoa by morphological analysis. Whole-exome sequencing (WES) was used for the patient and his wife. Sanger sequencing technique was used to verify the AURKC mutations in the patient's parents and his offspring. Sperm's ploidy was tested by flow cytometry. The couple asked for intra-couple ART therapy. RESULTS The patient presented novel compound heterozygous AURKC mutations (c.434C > T, c.497A > T) by WES. Sanger sequencing validation showed that variant of c.434C > T was observed in his father and c.497A > T was observed in his mother. Flow cytometry revealed that there existed a certain proportion of haploid sperm. Macrocephalic spermatozoa whose heads were smaller than the diameter of injection needle were selected for microinjection. A singleton pregnancy was achieved after embryo transfer. Prenatal diagnosis revealed that the fetus had normal chromosomal karyotype. Sanger sequencing technique showed that the fetus carried a c.434C > T mutation in one AURKC allele. A 3730 g healthy male fetus was delivered at term. CONCLUSION Our study reported a successful live birth from a patient with definite AURKC gene variants and may provide insights for such patients to choose donor sperm or their own sperm.
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Affiliation(s)
- Lingying Jiang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3rd Qingchun East Road, Hangzhou, Zhejiang, China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Feifei Kong
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3rd Qingchun East Road, Hangzhou, Zhejiang, China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Lv Yao
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3rd Qingchun East Road, Hangzhou, Zhejiang, China
| | - Fuxing Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3rd Qingchun East Road, Hangzhou, Zhejiang, China
| | - Lingfeng Wu
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3rd Qingchun East Road, Hangzhou, Zhejiang, China
| | - Haocheng Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3rd Qingchun East Road, Hangzhou, Zhejiang, China
| | - Guobing Yang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3rd Qingchun East Road, Hangzhou, Zhejiang, China
| | - Shasha Wang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3rd Qingchun East Road, Hangzhou, Zhejiang, China
| | - Xiaoying Jin
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3rd Qingchun East Road, Hangzhou, Zhejiang, China
| | - Xiufen Wang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3rd Qingchun East Road, Hangzhou, Zhejiang, China
| | - Xiaomei Tong
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3rd Qingchun East Road, Hangzhou, Zhejiang, China.
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, Zhejiang, China.
| | - Songying Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 3rd Qingchun East Road, Hangzhou, Zhejiang, China.
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, Zhejiang, China.
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Nykolaichuk R, Toporcerová S, Berbets A. Impact of post-Chernobyl radiation on flow cytometry parameters of human sperm. Cent Eur J Public Health 2022; 30:166-172. [DOI: 10.21101/cejph.a7258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 08/30/2022] [Indexed: 11/15/2022]
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Jerre E, Bungum M, Evenson D, Giwercman A. Sperm chromatin structure assay high DNA stainability sperm as a marker of early miscarriage after intracytoplasmic sperm injection. Fertil Steril 2019; 112:46-53.e2. [DOI: 10.1016/j.fertnstert.2019.03.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/05/2019] [Accepted: 03/08/2019] [Indexed: 01/13/2023]
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Tsounapi P, Honda M, Dimitriadis F, Koukos S, Hikita K, Zachariou A, Sofikitis N, Takenaka A. Effects of a micronutrient supplementation combined with a phosphodiesterase type 5 inhibitor on sperm quantitative and qualitative parameters, percentage of mature spermatozoa and sperm capacity to undergo hyperactivation: A randomised controlled trial. Andrologia 2018; 50:e13071. [PMID: 29987899 DOI: 10.1111/and.13071] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 03/29/2018] [Accepted: 05/05/2018] [Indexed: 11/29/2022] Open
Abstract
The main objective of this study was to evaluate the effects of a micronutrient supplementation (MS) combined with avanafil on sperm function. Oligoasthenospermic men (n = 217) were treated daily for 90 days with either an MS (45 men, Group A), l-carnitine (44 men, Group B), MS plus avanafil (43 men, Group C) or avanafil (43 men, Group D); another group of 42 men with oligoasthenospermia (Group E) received no treatment. Sperm parameters were evaluated before and after the end of treatment in each Group A, B, C and D respectively. The same sperm parameters were measured in each participant of Group E before and at the 90-day experimental period. Within Groups A, C or D, the total percentage of motile spermatozoa, the hypoosmotic swelling test (HOST) result and the percentage of hyperactivated spermatozoa after incubation under conditions known to induce sperm capacitation were significantly greater after MS or MS plus avanafil treatment, or avanafil treatment than before the respective treatment. We suggest that MS or MS plus avanafil combined administration or avanafil alone improves sperm membrane permeability with an overall result improvement in sperm motility, outcome of HOST and increase in the percentage of hyperactivated spermatozoa.
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Affiliation(s)
- Panagiota Tsounapi
- Department of Surgery, Division of Urology, Tottori University Faculty of Medicine, Yonago, Japan
| | - Masashi Honda
- Department of Surgery, Division of Urology, Tottori University Faculty of Medicine, Yonago, Japan
| | - Fotios Dimitriadis
- Department of Urology, Aristotle University of Thessaloniki School of Medicine, Thessaloniki, Greece
| | - Sotirios Koukos
- Department of Urology, University of Ioannina School of Medicine, Ioannina, Greece
| | - Katsuya Hikita
- Department of Surgery, Division of Urology, Tottori University Faculty of Medicine, Yonago, Japan
| | - Athanasios Zachariou
- Department of Urology, University of Ioannina School of Medicine, Ioannina, Greece
| | - Nikolaos Sofikitis
- Department of Urology, University of Ioannina School of Medicine, Ioannina, Greece
| | - Atsushi Takenaka
- Department of Surgery, Division of Urology, Tottori University Faculty of Medicine, Yonago, Japan
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Zümrütbaş AE, Gülpınar Ö, Mermerkaya M, Süer E, Yaman Ö. The effect of varicocele on sperm morphology and DNA maturity: does acridine orange staining facilitate diagnosis? Turk J Urol 2015; 39:165-9. [PMID: 26328102 DOI: 10.5152/tud.2013.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Accepted: 02/25/2013] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The aim of this study was to determine whether Acridine Orange (AO) can be used as a routine procedure in a physician's office to detect sperm deoxyribonucleic acid (DNA) fragmentation in patients with varicoceles. MATERIAL AND METHODS Forty-five patients with a mean age of 30.4 years, who had been diagnosed with varicoceles by physical examination and 30 healthy males with a mean age of 28.3 years and without any signs of varicoceles were included in this study. Doppler Ultrasonography was performed to each individual in addition to physical examination. Semen analyses were performed by the same biologist. Sperm morphology was evaluated according to the World Health Organization (WHO) criteria and Kruger's strict criteria. After routine semen analysis, the samples were fixed separately for further examination with AO staining. RESULTS In routine semen analyses, total sperm count, total motile sperm count, and fast direct forward motile and direct forward motile sperm counts were significantly lower in patients with varicoceles, and the immotile sperm count was significantly higher in patients with varicoceles compared to the control group. Kruger's examination revealed a lower sperm count with normal morphology in patients with varicoceles. After AO staining, the ratio of spermatozoa demonstrating red and green coloration were 6.5±11.0% and 93.5±11.0%, respectively in the varicocele group and 1.0±1.0% and 99.0±1.0%, respectively in the control group (p<0.001). CONCLUSION Semen analysis using AO staining can be performed under a clinician's office conditions with a fluorescent microscope without any additional equipment. Further studies are needed to validate the AO staining with more extensively used and well-known methods. Therefore, AO staining can be used as a simple and reliable method that can be performed daily in a physician's office in infertility and andrology clinics.
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Affiliation(s)
- Ali Ersin Zümrütbaş
- Department of Urology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Ömer Gülpınar
- Department of Urology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Murat Mermerkaya
- Department of Urology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Evren Süer
- Department of Urology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Önder Yaman
- Department of Urology, Faculty of Medicine, Ankara University, Ankara, Turkey
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Omu AE. Sperm parameters: paradigmatic index of good health and longevity. Med Princ Pract 2013; 22 Suppl 1:30-42. [PMID: 24051979 PMCID: PMC5586815 DOI: 10.1159/000354208] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 07/09/2013] [Indexed: 12/19/2022] Open
Abstract
Since the discovery of spermatozoon by Anton van Leeuwenhoek in 1677, there has been an ever increasing understanding of its role in reproduction. Many factors adversely affect sperm quality, including varicocele, accessory gland infection, immunological factors, congenital abnormalities, and iatrogenic systemic and endocrine causes, such as diabetes mellitus, obesity, metabolic syndrome, and smoking. The mechanisms responsible for the association between poor sperm parameters and ill health may include oxidative stress, low-grade inflammation, low testosterone, and low sex-hormone-binding globulin. Oxidative stress in the testicular microenvironment may result in decreased spermatogenesis and sperm DNA damage, loss of sperm motility, and abnormal sperm morphology. Low testosterone caused by advanced age, visceral obesity, and inflammation is associated with the development of cardiovascular disease. Hence, semen analysis has an important role in the routine evaluation of idiopathic male infertility, usually manifested as low sperm counts, impaired sperm motility, or absence of sperm, and remains the most common single diagnostic tool. Several studies have shown an inverse relationship between semen quality and medical disorders. This review elucidates the effect of medical disorders and social habits on sperm quality, the mechanisms that are involved in the impairment of sperm quality, and whether or not sperm quality can be used as an index of good health and longevity in a man.
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Affiliation(s)
- Alexander E. Omu
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait
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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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Lazaros L, Vartholomatos G, Pamporaki C, Kosmas I, Takenaka A, Makrydimas G, Sofikitis N, Stefos T, Zikopoulos K, Hatzi E, Georgiou I. Sperm flow cytometric parameters are associated with ICSI outcome. Reprod Biomed Online 2013; 26:611-8. [PMID: 23602684 DOI: 10.1016/j.rbmo.2013.02.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 02/08/2013] [Accepted: 02/12/2013] [Indexed: 01/02/2023]
Abstract
The association of sperm nuclear chromatin condensation and ploidy with embryo development and outcome after intracytoplasmic sperm injection (ICSI) was explored. The study population consisted of 16 couples referred to Ioannina University Medical School In vitro Fertilization Unit with male factor infertility and serious impairments in sperm nuclear chromatin condensation and ploidy, according to sperm flow cytometry. Additionally, 20 couples with male factor infertility and relatively high sperm flow cytometry parameters participated as controls. The 35 cycles of the study population were characterized by a lower fertilization rate (P<0.001) as well as decreased grade A embryo rate (P=0.004) and increased grade C embryo rate (P=0.028), compared with the 29 cycles of the control group. Additionally, a significantly elevated arrested embryo rate (P<0.001) and a decreased clinical pregnancy rate (P<0.020) were observed in the couples of the study population. Consequently, high levels of sperm nuclear chromatin condensation abnormalities and sperm aneuploidies are probably associated with lower fertilization rates, impaired embryo quality, elevated arrested embryo rates and decreased pregnancy rates. These preliminary results strongly support the use of sperm flow cytometry as a potential prognostic tool of ICSI outcome.
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Affiliation(s)
- Leandros Lazaros
- Genetics and IVF Unit, Department of Obstetrics and Gynecology, Ioannina University Medical School, Ioannina, Greece
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Lazaros L, Hatzi E, Markoula S, Takenaka A, Sofikitis N, Zikopoulos K, Georgiou I. Dramatic reduction in sperm parameters following bariatric surgery: report of two cases. Andrologia 2012; 44:428-32. [DOI: 10.1111/j.1439-0272.2012.01300.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2012] [Indexed: 01/31/2023] Open
Affiliation(s)
- L. Lazaros
- Genetics and IVF Unit, Department of Obstetrics and Gynecology; Medical School, Ioannina University; Ioannina; Greece
| | - E. Hatzi
- Genetics and IVF Unit, Department of Obstetrics and Gynecology; Medical School, Ioannina University; Ioannina; Greece
| | - S. Markoula
- Genetics and IVF Unit, Department of Obstetrics and Gynecology; Medical School, Ioannina University; Ioannina; Greece
| | - A. Takenaka
- Department of Urology; Tottori University Faculty of Medicine; Tottori; Japan
| | - N. Sofikitis
- Department of Urology; Medical School, Ioannina University; Ioannina; Greece
| | - K. Zikopoulos
- Genetics and IVF Unit, Department of Obstetrics and Gynecology; Medical School, Ioannina University; Ioannina; Greece
| | - I. Georgiou
- Genetics and IVF Unit, Department of Obstetrics and Gynecology; Medical School, Ioannina University; Ioannina; Greece
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Akl LD, Oliveira JBA, Petersen CG, Mauri AL, Silva LFI, Massaro FC, Baruffi RLR, Cavagna M, Franco JG. Efficacy of the motile sperm organelle morphology examination (MSOME) in predicting pregnancy after intrauterine insemination. Reprod Biol Endocrinol 2011; 9:120. [PMID: 21861903 PMCID: PMC3170256 DOI: 10.1186/1477-7827-9-120] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Accepted: 08/23/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Although the motile sperm organelle morphology examination (MSOME) was developed merely as a selection criterion, its application as a method for classifying sperm morphology may represent an improvement in the evaluation of semen quality. The aim of this study was to determine the prognostic value of normal sperm morphology using MSOME with regard to clinical pregnancy (CP) after intrauterine insemination (IUI). METHODS A total of 156 IUI cycles that were performed in 111 couples were prospectively analysed. Each subject received 75 IU of recombinant FSH every second day from the third day of the cycle. Beginning on the 10th day of the cycle, follicular development was monitored by vaginal ultrasound. When one or two follicles measuring at least 17 mm were observed, recombinant hCG was administered, and IUI was performed 12-14 h and 36-40 h after hCG treatment. Prior to the IUI procedure, sperm samples were analysed by MSOME at 8400× magnification using an inverted microscope that was equipped with DIC/Nomarski differential interference contrast optics. A minimum of 200 motile spermatozoa per semen sample were evaluated, and the percentage of normal spermatozoa in each sample was determined. RESULTS Pregnancy occurred in 34 IUI cycles (CP rate per cycle: 21.8%, per patient: 30.6%). Based on the MSOME criteria, a significantly higher percentage of normal spermatozoa was found in the group of men in which the IUI cycles resulted in pregnancy (2.6+/-3.1%) compared to the group that did not achieve pregnancy (1.2+/-1.7%; P = 0.019). Logistic regression showed that the percentage of normal cells in the MSOME was a determining factor for the likelihood of clinical pregnancy (OR: 1.28; 95% CI: 1.08 to 1.51; P = 0.003). The ROC curve revealed an area under the curve of 0.63 and an optimum cut-off point of 2% of normal sperm morphology. At this cut-off threshold, using the percentage of normal sperm morphology by MSOME to predict pregnancy was 50% sensitive with a 40% positive predictive value and 79% specificity with an 85% negative predictive value. The efficacy of using the percentage of normal sperm morphology by MSOME in predicting pregnancy was 65%. CONCLUSIONS The present findings support the use of high-magnification microscopy both for selecting spermatozoa and as a routine method for analysing semen before performing IUI.
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Affiliation(s)
- Livia D Akl
- Department of Gynaecology and Obstetrics, Botucatu Medical School, São Paulo State University - UNESP, Botucatu, Brazil
| | - Joao Batista A Oliveira
- Department of Gynaecology and Obstetrics, Botucatu Medical School, São Paulo State University - UNESP, Botucatu, Brazil
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Brazil
- Paulista Center for Diagnosis, Research and Training, Ribeirao Preto, Brazil
| | - Claudia G Petersen
- Department of Gynaecology and Obstetrics, Botucatu Medical School, São Paulo State University - UNESP, Botucatu, Brazil
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Brazil
- Paulista Center for Diagnosis, Research and Training, Ribeirao Preto, Brazil
| | - Ana L Mauri
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Brazil
- Paulista Center for Diagnosis, Research and Training, Ribeirao Preto, Brazil
| | - Liliane FI Silva
- Department of Gynaecology and Obstetrics, Botucatu Medical School, São Paulo State University - UNESP, Botucatu, Brazil
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Brazil
- Paulista Center for Diagnosis, Research and Training, Ribeirao Preto, Brazil
| | - Fabiana C Massaro
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Brazil
- Paulista Center for Diagnosis, Research and Training, Ribeirao Preto, Brazil
| | - Ricardo LR Baruffi
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Brazil
- Paulista Center for Diagnosis, Research and Training, Ribeirao Preto, Brazil
| | - Mario Cavagna
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Brazil
- Paulista Center for Diagnosis, Research and Training, Ribeirao Preto, Brazil
| | - Jose G Franco
- Department of Gynaecology and Obstetrics, Botucatu Medical School, São Paulo State University - UNESP, Botucatu, Brazil
- Center for Human Reproduction Prof. Franco Jr., Ribeirao Preto, Brazil
- Paulista Center for Diagnosis, Research and Training, Ribeirao Preto, Brazil
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Lazaros LA, Vartholomatos GA, Hatzi EG, Kaponis AI, Makrydimas GV, Kalantaridou SN, Sofikitis NV, Stefos TI, Zikopoulos KA, Georgiou IA. Assessment of sperm chromatin condensation and ploidy status using flow cytometry correlates to fertilization, embryo quality and pregnancy following in vitro fertilization. J Assist Reprod Genet 2011; 28:885-91. [PMID: 21779786 DOI: 10.1007/s10815-011-9611-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Accepted: 07/11/2011] [Indexed: 11/27/2022] Open
Abstract
PURPOSE Sperm flow cytometry (SFC) was used to evaluate the association of sperm chromatin condensation and ploidy with fertilization, embryo development, pregnancy and abortion rates following IVF. METHODS Conventional semen analysis was performed in one hundred fifty men, as well as SFC analysis, after acridine orange and propidium iodide staining, for the evaluation of sperm maturity and ploidy respectively. Conventional IVF was performed in all couples. RESULTS Couples with low percentages of mature spermatozoa presented with lower fertilization rates (p < 0.005), lower rates of grade A embryos (p < 0.003) and lower pregnancy rates (p < 0.006), compared to couples with high percentages of mature spermatozoa. Couples with low total aneuploidy rates presented with higher fertilization rates (p < 0.007), higher rates of grade A embryos (p < 0.004) and higher pregnancy rates (p < 0.003), compared to couples with high total aneuploidy rates. CONCLUSIONS Sperm chromatin condensation and ploidy constitute critical parameters for the evaluation of semen samples before IVF and for the identification of cases in need of ICSI application.
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Affiliation(s)
- Leandros A Lazaros
- Genetics and IVF Unit, Department of Obstetrics and Gynecology, Medical School, University of Ioannina, 45110, Ioannina, Greece
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