1
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Wang Z, Zhu J, Zhang D, Lv J, Wu L, Liu Z. The significant mechanism and treatments of cell death in heatstroke. Apoptosis 2024; 29:967-980. [PMID: 38886312 DOI: 10.1007/s10495-024-01979-w] [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] [Accepted: 05/06/2024] [Indexed: 06/20/2024]
Abstract
With global warming, extreme environmental heat is becoming a social issue of concern, which can cause adverse health results including heatstroke (HS). Severe heat stress is characterized by cell death of direct heat damage, excessive inflammatory responses, and coagulation disorders that can lead to multiple organ dysfunction (MODS) and even death. However, the significant pathophysiological mechanism and treatment of HS are still not fully clear. Various modes of cell death, including apoptosis, pyroptosis, ferroptosis, necroptosis and PANoptosis are involved in MODS induced by heatstroke. In this review, we summarized molecular mechanism, key transcriptional regulation as for HSF1, NRF2, NF-κB and PARP-1, and potential therapies of cell death resulting in CNS, liver, intestine, reproductive system and kidney injury induced by heat stress. Understanding the mechanism of cell death provides new targets to protect multi-organ function in HS.
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Affiliation(s)
- Zixin Wang
- Department of Metabolic Surgery, Jinshazhou Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510010, China
| | - Jie Zhu
- Department of Pediatric, General Hospital of Southern Theater Command of PLA, Guangzhou, 510010, China
| | - Dingshun Zhang
- Department of Medicine Intensive Care Unit, General Hospital of Southern Theater Command of PLA, Guangzhou, 510010, China
| | - Jinke Lv
- Department of Thoracic Surgery, Foshan Clinical Medical School of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Liangping Wu
- Department of Metabolic Surgery, Jinshazhou Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510010, China.
| | - Zhifeng Liu
- Department of Medicine Intensive Care Unit, General Hospital of Southern Theater Command of PLA, Guangzhou, 510010, China.
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2
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Zhang LX, Mao J, Zhou YD, Mao GY, Guo RF, Ge HS, Chen X. Evaluation of microRNA expression profiles in human sperm frozen using permeable cryoprotectant-free droplet vitrification and conventional methods. Asian J Androl 2024; 26:366-376. [PMID: 38738948 PMCID: PMC11280198 DOI: 10.4103/aja202390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 01/18/2024] [Indexed: 05/14/2024] Open
Abstract
For sperm cryopreservation, the conventional method, which requires glycerol, has been used for a long time. In addition, the permeable cryoprotectant-free vitrification method has been continuously studied. Although the differences of cryopreservation effects between the two methods have being studied, differences in microRNA (miRNA) profiles between them remain unclear. In this study, we investigated the differences in miRNA expression profiles among conventional freezing sperm, droplet vitrification freezing sperm and fresh human sperm. We also analyzed the differences between these methods in terms of differentially expressed miRNAs (DEmiRs) related to early embryonic development and paternal epigenetics. Our results showed no significant differences between the cryopreservation methods in terms of sperm motility ratio, plasma membrane integrity, DNA integrity, mitochondrial membrane potential, acrosome integrity, and ultrastructural damage. However, sperm miRNA-sequencing showed differences between the two methods in terms of the numbers of DEmiRs (28 and 19 with vitrification using a nonpermeable cryoprotectant and the conventional method, respectively) in postthaw and fresh sperm specimens. DEmiRs related to early embryonic development and paternal epigenetics mainly included common DEmiRs between the groups. Our results showed that the differences between conventional freezing and droplet vitrification were minimal in terms of miRNA expression related to embryonic development and epigenetics. Changes in sperm miRNA expression due to freezing are not always detrimental to embryonic development. This study compared differences in miRNA expression profiles before and after cryopreservation between cryopreservation by conventional and vitrification methods. It offers a new perspective to evaluate various methods of sperm cryopreservation.
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Affiliation(s)
- Li-Xin Zhang
- Department of Histology and Embryology, Medical School, Nantong University, Nantong 226001, China
- Department of Reproductive Medicine, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou 225300, China
| | - Jing Mao
- Department of Histology and Embryology, Medical School, Nantong University, Nantong 226001, China
- Department of Reproductive Medicine, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou 225300, China
| | - Yan-Dong Zhou
- Department of Reproductive Medicine, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou 225300, China
| | - Guang-Yao Mao
- Department of Reproductive Medicine, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou 225300, China
| | - Run-Fa Guo
- Department of Reproductive Medicine, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou 225300, China
| | - Hong-Shan Ge
- Department of Reproductive Medicine, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou 225300, China
| | - Xia Chen
- Department of Histology and Embryology, Medical School, Nantong University, Nantong 226001, China
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Fernández de la Puente M, Salas-Huetos A, Valle-Hita C, Babio N, Murphy MM, Canudas S, Salas-Salvadó J. Is telomere length a biomarker of sperm quality? A systematic review and meta-analysis of observational studies. Andrology 2024; 12:277-288. [PMID: 37328426 DOI: 10.1111/andr.13482] [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: 03/29/2023] [Revised: 05/18/2023] [Accepted: 06/13/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Telomeres are essential for the integrity of chromosome ends during cell division and their involvement in different processes linked to aging has been established. These chromosome components are involved in spermatogenesis and seem to play an important role in fertilization and embryo development. Telomere length is shortened with each cell division. Recently, short sperm telomere length has been proposed as a potential biomarker of male infertility. OBJECTIVES To conduct a systematic review and meta-analysis of studies exploring the association between spermatozoa and/or leukocyte telomere length with sperm quality parameters and different infertility conditions. MATERIAL AND METHODS A systematic review and meta-analysis was conducted with studies from Medline-PUBMED and Cochrane Library databases until May 2022. Eligible studies included cohort, cross-sectional and case-control studies, and telomere length in spermatozoa and/or leukocytes cells was defined as the exposure. Semen quality parameters or infertility conditions (e.g., oligozoospermia, asthenozoospermia, teratozoospermia, or other spermatogenic impairment combinations) were defined as the outcomes. RESULTS Twenty-three observational studies were included. In the qualitative analysis, high heterogeneity was observed between studies regarding the associations between telomere length and semen parameters in different normozoospermic/fertile and oligozoospermic/infertile populations. In the meta-analysis, spermatozoa and leukocyte telomere length were shorter in infertile individuals than in fertile individuals (mean difference [95% confidence interval]: -1.43 [-1.66 to -1.21], p-value <0.001 and -1.67 [-2.02 to -1.31], p-value <0.001, respectively). Moreover, in terms of sperm telomere length, these differences were also significant between individuals with a normal seminogram and individuals with a low quantity of spermatozoa in the ejaculate (-0.97 [-1.32, -0.61], p-value <0.001). CONCLUSION The current systematic review and meta-analysis suggests the potential role of spermatozoa or leukocyte telomere length as a reliable biomarker of semen quality, which may help distinguish between infertility conditions beyond the routine semen analysis.
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Affiliation(s)
- María Fernández de la Puente
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Unitat de Nutrició Humana, Grup ANUT-DSM, Reus, Spain
- Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigació Sanitària Pere Virgili, Hospital Universitari San Joan de Reus, Reus, Spain
| | - Albert Salas-Huetos
- Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigació Sanitària Pere Virgili, Hospital Universitari San Joan de Reus, Reus, Spain
- Universitat Rovira i Virgili, Departament de Ciències Mèdiques Bàsiques, Unit of Preventive Medicine and Public Health, Grup ANUT-DSM, Reus, Spain
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Cristina Valle-Hita
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Unitat de Nutrició Humana, Grup ANUT-DSM, Reus, Spain
- Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigació Sanitària Pere Virgili, Hospital Universitari San Joan de Reus, Reus, Spain
| | - Nancy Babio
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Unitat de Nutrició Humana, Grup ANUT-DSM, Reus, Spain
- Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigació Sanitària Pere Virgili, Hospital Universitari San Joan de Reus, Reus, Spain
| | - Michelle M Murphy
- Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigació Sanitària Pere Virgili, Hospital Universitari San Joan de Reus, Reus, Spain
- Universitat Rovira i Virgili, Departament de Ciències Mèdiques Bàsiques, Unit of Preventive Medicine and Public Health, Grup ANUT-DSM, Reus, Spain
| | - Silvia Canudas
- Department of Nutrition, Food Sciences and Gastronomy, School of Pharmacy and Food Sciences, Food Torribera Campus, University of Barcelona, Santa Coloma de Gramenet, Spain
- Institute of Nutrition and Food Safety, University of Barcelona, Santa Coloma de Gramenet, Spain
| | - Jordi Salas-Salvadó
- Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Unitat de Nutrició Humana, Grup ANUT-DSM, Reus, Spain
- Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigació Sanitària Pere Virgili, Hospital Universitari San Joan de Reus, Reus, Spain
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Andrei CR, Posastiuc FP, Constantin NT, Mitrea IL. New insights into semen separation techniques in buffaloes. Front Vet Sci 2024; 10:1347482. [PMID: 38269362 PMCID: PMC10806153 DOI: 10.3389/fvets.2023.1347482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 12/26/2023] [Indexed: 01/26/2024] Open
Abstract
Male infertility is frequently caused by idiopathic or unexplained reasons, resulting in an increase in demand for assisted reproductive technologies. In buffaloes, more than in other animals due to reproductive hardiness, successful fertilization needs spermatozoa to effectively transit the female reproductive system to reach the oocyte. This mechanism naturally picks high-quality sperm cells for conception, but when artificial reproductive technologies such as in vitro fertilization, intracytoplasmic sperm injection, or intrauterine insemination are utilized, alternative techniques of sperm selection are necessary. Currently, technology allows for sperm sorting based on motility, maturity, the lack of apoptotic components, proper morphology, and even sex. This study provides current knowledge on all known techniques of sperm cell sorting in buffaloes, evaluates their efficiency, and discusses the benefits and drawbacks of each approach.
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Affiliation(s)
- Crina Raluca Andrei
- Faculty of Veterinary Medicine of Bucharest, University of Agronomic Sciences and Veterinary Medicine, Bucharest, Romania
| | - Florin Petrișor Posastiuc
- Faculty of Veterinary Medicine of Bucharest, University of Agronomic Sciences and Veterinary Medicine, Bucharest, Romania
- Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Nicolae Tiberiu Constantin
- Faculty of Veterinary Medicine of Bucharest, University of Agronomic Sciences and Veterinary Medicine, Bucharest, Romania
- Research and Development Institute for Bovine Balotești, Balotești, Romania
| | - Ioan Liviu Mitrea
- Faculty of Veterinary Medicine of Bucharest, University of Agronomic Sciences and Veterinary Medicine, Bucharest, Romania
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5
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Randell Z, Dehghanbanadaki H, Fendereski K, Jimbo M, Aston K, Hotaling J. Sperm telomere length in male-factor infertility and reproduction. Fertil Steril 2024; 121:12-25. [PMID: 37949346 DOI: 10.1016/j.fertnstert.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 11/12/2023]
Abstract
The underlying reasons for male-factor infertility are often unknown. 30% of all men have unexplained semen analysis abnormalities. Moreover, 15%-40% of infertile men have normal semen analyses. There have been increasing efforts to identify causes and associations that may explain idiopathic male-factor infertility. Telomeres have become an area of considerable interest in the field because of the essential roles they have in cellular division and genome integrity. Research to date most consistently supports that men with infertility have shorter sperm telomere length (STL); however, associations between shorter STL and meaningful reproductive health outcomes are less consistent. There is a major need for additional studies to better identify the role of STL in male reproductive health and use the information to improve the counseling and treatment of couples with idiopathic male-factor infertility.
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Affiliation(s)
- Zane Randell
- Division of Urology, Department of Surgery, University of Utah, Salt Lake City, Utah.
| | - Hojat Dehghanbanadaki
- Division of Urology, Department of Surgery, University of Utah, Salt Lake City, Utah
| | - Kiarad Fendereski
- Division of Urology, Department of Surgery, University of Utah, Salt Lake City, Utah
| | - Masaya Jimbo
- Division of Urology, Department of Surgery, University of Utah, Salt Lake City, Utah
| | - Kenneth Aston
- Division of Urology, Department of Surgery, University of Utah, Salt Lake City, Utah
| | - James Hotaling
- Division of Urology, Department of Surgery, University of Utah, Salt Lake City, Utah
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Sugihara A, Punjabi U, Chimienti T, Goovaerts I, Peeters K, Bouziotis J, De Neubourg D. Sperm DNA Fragmentation after Cryopreservation and Sperm Selection Has No Implications for Clinical Pregnancies and Live Births after Intrauterine Insemination with Donor Sperm. J Pers Med 2023; 13:1668. [PMID: 38138895 PMCID: PMC10745103 DOI: 10.3390/jpm13121668] [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: 10/26/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Intrauterine insemination with donor sperm (IUI-D) requires multiple in vitro manipulations such as sperm selection and cryopreservation during which spermatozoa may be exposed to oxidative stress (OS) and other insults that may produce potential damage including sperm DNA fragmentation (SDF). High levels of SDF, referring to damage or breaks in the genetic material of sperm cells, are linked to an increased risk of reproductive failure. This retrospective, observational study set out to evaluate whether SDF assessment could predict clinical outcome in an IUI-D program, where sperm donors are selected on strict conventional semen parameters. A total of 18 donors and 106 recipients were matched for IUI-D. Out of 429 cycles, 100 (23.3%) resulted in clinical pregnancy. We counted 78 live births (18.2% of cycles), while 20 pregnancies ended in miscarriage (4.7% of cycles), 1 in extra-uterine pregnancy and 1 in stillbirth. Female age significantly influenced clinical pregnancy and miscarriage rates. SDF increased after cryopreservation (26.3 ± 14.5%; p < 0.001) and more so after post-thaw density gradient (34.9 ± 22.1%; p = 0.04) without affecting clinical pregnancy (OR [95% CI] 1.01 [0.99; 1.02]; p = 0.27), live birth (1.00 [0.99; 1.02]; p = 0.72) and miscarriage rates (1.02 [1.00; 1.05]; p = 0.08). The implications of our findings extend to a better selection of sperm donors and a better sperm preparation technique tailored to the donor semen's properties in order to maximize the chances of a favorable treatment outcome.
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Affiliation(s)
- Alessa Sugihara
- Centre of Reproductive Medicine, University Hospital of Antwerp, 2650 Edegem, Belgium
- Faculty of Medicine and Health Sciences, University of Antwerp—Campus Drie Eiken, 2610 Wilrijk, Belgium
- Centre of Reproductive Medicine, Algemeen Ziekenhuis KLINA, 2930 Brasschaat, Belgium
| | - Usha Punjabi
- Centre of Reproductive Medicine, University Hospital of Antwerp, 2650 Edegem, Belgium
- Faculty of Medicine and Health Sciences, University of Antwerp—Campus Drie Eiken, 2610 Wilrijk, Belgium
| | - Tiziana Chimienti
- Centre of Reproductive Medicine, University Hospital of Antwerp, 2650 Edegem, Belgium
| | - Ilse Goovaerts
- Centre of Reproductive Medicine, University Hospital of Antwerp, 2650 Edegem, Belgium
- Faculty of Medicine and Health Sciences, University of Antwerp—Campus Drie Eiken, 2610 Wilrijk, Belgium
| | - Kris Peeters
- Centre of Reproductive Medicine, University Hospital of Antwerp, 2650 Edegem, Belgium
- Faculty of Medicine and Health Sciences, University of Antwerp—Campus Drie Eiken, 2610 Wilrijk, Belgium
| | - Jason Bouziotis
- Clinical Trial Center, University Hospital of Antwerp, 2650 Edegem, Belgium
| | - Diane De Neubourg
- Centre of Reproductive Medicine, University Hospital of Antwerp, 2650 Edegem, Belgium
- Faculty of Medicine and Health Sciences, University of Antwerp—Campus Drie Eiken, 2610 Wilrijk, Belgium
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7
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Walker Z, Ernandez J, Lanes A, Srouji SS, Ginsburg E, Kathrins M. The effects of male anxiety and depression on IVF outcomes. Hum Reprod 2023; 38:2119-2127. [PMID: 37690112 DOI: 10.1093/humrep/dead179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/16/2023] [Indexed: 09/12/2023] Open
Abstract
STUDY QUESTION What are the effects of male anxiety and depression on IVF outcomes? SUMMARY ANSWER Men with anxiety had lower final total motile sperm counts (fTMSC) during IVF compared to men without anxiety; however, there were no differences in live birth rates (LBRs). WHAT IS KNOWN ALREADY Studies have shown that male anxiety causes low sperm motility, worse sperm morphology, and increased DNA fragmentation, which are known to be influential factors on fertilization rates and embryo quality during IVF. However, data are lacking on whether there is a direct association between male anxiety and/or depression and IVF outcomes. STUDY DESIGN, SIZE, DURATION This was a survey-based, retrospective cohort study completed at a single, large hospital-affiliated fertility center with 222 respondents who underwent IVF with or without ICSI. The study was conducted between 6 September 2018 and 27 December 2022. PARTICIPANTS/MATERIALS, SETTING, METHODS Male partners of couples who underwent IVF or IVF/ICSI completed a Hospital Anxiety and Depression Scale (HADS) questionnaire. They were separated into two groups for both anxiety (HADS-A ≥ 8 or HADS-A < 8) and depression (HADS-D ≥ 8 or HADS-D < 8). Men with an elevated HADS-A or HADS-D score ≥8 were considered to have anxiety or depression, respectively. The primary outcome was LBR. Secondary outcomes included semen parameters at the time of IVF, cycle outcomes, pregnancy outcomes, and prevalence of erectile dysfunction and low libido. MAIN RESULTS AND THE ROLE OF CHANCE There were a total of 222 respondents, of whom 22.5% had a HADS-A ≥ 8 and 6.5% had a HADS-D ≥ 8. The average age of respondents was 37.38 ± 4.90 years old. Antidepressant use was higher in the respondents with a HADS-A or HADS-D ≥ 8 (P < 0.05). Smoking use was similar between groups for both HADS-A and HADS-D (P > 0.05). When adjusted for male BMI, antidepressant use and smoking, men with a HADS-A or HADS-D ≥ 8 had similar rates of erectile dysfunction (adjusted relative risk (aRR) = 1.12 (95% CI 0.60, 2.06)) and low libido (aRR = 1.70 (95% CI 0.91, 3.15)) compared to those with a HADS-A or HADS-D ≤ 8. Men with a HADS-A ≥ 8 were more likely to have a lower fTMSC on the day of oocyte retrieval (11.8 ≥ 8 vs 20.1 < 8, adjusted ß = -0.66 (95% CI -1.22, -0.10)). However, the LBR per embryo transfer (ET) was similar between the HADS-A groups (43.2% ≥8 vs 45.1% <8, adjusted relative risk = 0.90 (95% CI 0.65, 1.06)). Although depression was uncommon in the entire cohort, the HADS-D groups were clinically similar for fTMSC (18.7 ≥ 8 vs 16.0 < 8) and LBR per ET (46.7% ≥8 vs 45.4% <8). LIMITATIONS, REASONS FOR CAUTION Limitations of our study are the survey-based design, the lack of sperm morphology assessment at the time of IVF, our inability to fully assess the HADS-D ≥ 8 cohort due to the small sample size and the large Caucasian demographic. WIDER IMPLICATIONS OF THE FINDINGS Couples undergoing IVF have an increased likelihood of suffering from anxiety and/or depression. There is currently a debate on whether or not men should be treated with antidepressants while attempting to conceive due to potential detrimental effects on sperm quality. Our study shows that, regardless of antidepressant use, couples with men who did or did not report anxiety and/or depression have similar LBRs when undergoing IVF. Therefore, it is important to assess both partners for mental health and to not withhold treatment due to a concern about a potential impact of antidepressants or anxiety/depression on sperm quality. STUDY FUNDING/COMPETING INTEREST(S) There was no funding to report for this study. Z.W. is a contributing author for UptoDate. S.S.S. is on the advisory board for Ferring Pharmaceuticals. E.G. was a medical consultant for Hall-Matson Esq, Teladoc, and CRICO and is a contributing author for UptoDate. The remaining authors have nothing to report. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Zachary Walker
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Brigham & Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - John Ernandez
- Harvard Medical School, Boston, MA, USA
- Division of Urology, Brigham & Women's Hospital, Boston, MA, USA
| | - Andrea Lanes
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Brigham & Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Serene S Srouji
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Brigham & Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Elizabeth Ginsburg
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Brigham & Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Martin Kathrins
- Harvard Medical School, Boston, MA, USA
- Division of Urology, Brigham & Women's Hospital, Boston, MA, USA
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Huang MC, Tzeng SL, Chen WJ, Chen SL, Ding YR, Lee CI, Lee MS, Lee TH. SUMO1 and Defective Spermatozoa Correlate with Endogenous Hydrogen Peroxide and Live Birth Outcome in Intrauterine Insemination Cycles for Unexplained Infertility. Int J Mol Sci 2023; 24:12775. [PMID: 37628954 PMCID: PMC10454912 DOI: 10.3390/ijms241612775] [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: 07/20/2023] [Revised: 08/08/2023] [Accepted: 08/12/2023] [Indexed: 08/27/2023] Open
Abstract
This study aimed to investigate the correlation between hydrogen peroxide (H2O2), small ubiquitin-like modifier molecules (SUMO), and pregnancy outcomes in couples with unexplained infertility (UI) undergoing intrauterine insemination (IUI) treatment. We prospectively collected semen samples from 56 couples with UI and divided the spermatozoa into motile and immotile fractions by density gradient centrifugation (DSC). Immunofluorescence staining was used to examine the immunostaining and localization of nuclear pore complex (NPC), SUMO1, and SUMO2/3 in spermatozoa. We detected H2O2 levels by chemiluminescence methods. We found that H2O2 levels correlated with NPC (neck) (r = 0.400) and NPC (tail) (r = 0.473) in motile sperm fractions. In immotile fractions, H2O2 positively correlated with NPC (tail) (r = 0.431) and SUMO1 (neck) (r = 0.282). Furthermore, the positive NPC (tail) group had a significantly lower live birth rate than the negative NPC group (17.9% = 5/28 vs. 42.9% = 12/28). In conclusion, H2O2 positively correlated with SUMO1 (neck) and NPC (tail) in human spermatozoa. The DSC may partially eliminate defective spermatozoa (positive NPC staining); however, if defective spermatozoa remain in the motile fraction, this scenario is associated with a low live birth rate following IUI treatment.
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Affiliation(s)
- Ming-Chao Huang
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Hsinchu 30071, Taiwan;
- MacKay Junior College of Medicine, Nursing, and Management, Taipei 23741, Taiwan
| | - Shu-Ling Tzeng
- Institute of Medicine, Chung Shan Medical University, Taichung 40203, Taiwan; (S.-L.T.); (Y.-R.D.); (M.-S.L.)
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung 40203, Taiwan
| | - Wen-Jung Chen
- Department of Urology, Chung Shan Medical University Hospital, Taichung 40203, Taiwan; (W.-J.C.); (S.-L.C.)
- School of Medicine, Chung Shan Medical University, Taichung 40203, Taiwan;
| | - Sung-Lang Chen
- Department of Urology, Chung Shan Medical University Hospital, Taichung 40203, Taiwan; (W.-J.C.); (S.-L.C.)
- School of Medicine, Chung Shan Medical University, Taichung 40203, Taiwan;
| | - You-Ren Ding
- Institute of Medicine, Chung Shan Medical University, Taichung 40203, Taiwan; (S.-L.T.); (Y.-R.D.); (M.-S.L.)
| | - Chun-I Lee
- School of Medicine, Chung Shan Medical University, Taichung 40203, Taiwan;
- Department of Obstetrics and Gynecology, Chung Shan Medical University Hospital, Taichung 40203, Taiwan
- Division of Infertility Clinic, Lee Women’s Hospital, Taichung 40602, Taiwan
| | - Maw-Sheng Lee
- Institute of Medicine, Chung Shan Medical University, Taichung 40203, Taiwan; (S.-L.T.); (Y.-R.D.); (M.-S.L.)
- Department of Obstetrics and Gynecology, Chung Shan Medical University Hospital, Taichung 40203, Taiwan
- Division of Infertility Clinic, Lee Women’s Hospital, Taichung 40602, Taiwan
| | - Tsung-Hsien Lee
- Institute of Medicine, Chung Shan Medical University, Taichung 40203, Taiwan; (S.-L.T.); (Y.-R.D.); (M.-S.L.)
- School of Medicine, Chung Shan Medical University, Taichung 40203, Taiwan;
- Department of Obstetrics and Gynecology, Chung Shan Medical University Hospital, Taichung 40203, Taiwan
- Division of Infertility Clinic, Lee Women’s Hospital, Taichung 40602, Taiwan
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9
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Gouhier C, Pons-Rejraji H, Dollet S, Chaput L, Bourgne C, Berger M, Pereira B, Tchirkov A, Brugnon F. Freezing Does Not Alter Sperm Telomere Length despite Increasing DNA Oxidation and Fragmentation. Genes (Basel) 2023; 14:genes14051039. [PMID: 37239399 DOI: 10.3390/genes14051039] [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: 03/10/2023] [Revised: 04/28/2023] [Accepted: 04/30/2023] [Indexed: 05/28/2023] Open
Abstract
Correlations were reported between sperm telomere length (STL) and male fertility, sperm DNA fragmentation, and oxidation. Sperm freezing is widely used for assisted reproductive techniques, fertility preservation, and sperm donation. However, its impact on STL remains unknown. For this study, semen surplus from patients who underwent routine semen analysis were used. The impact of slow freezing on STL was analyzed by performing qPCR before and after freezing. Sperm populations with different STL were evaluated using Q-FISH. The relationship between sperm DNA oxidation, DNA fragmentation, and STL was assessed in fresh and frozen sperm samples. No significant impact of slow freezing on STL was observed, neither measured by qPCR nor Q-FISH. However, Q-FISH allowed for the distinguishing of sperm populations with different STLs within individual sperm samples. Slow freezing induced different STL distributions for some of the analyzed sperm samples, but no correlation was found between STL and sperm DNA fragmentation or oxidation. Slow freezing does not alter STL despite increasing sperm DNA oxidation and fragmentation. As STL alterations could be transmitted to offspring, the lack of impact of the slow freezing method on STL ensures the safety of this procedure.
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Affiliation(s)
- Charlène Gouhier
- CHU Clermont-Ferrand, Laboratoire AMP-CECOS, F-63003 Clermont-Ferrand, France
| | - Hanae Pons-Rejraji
- CHU Clermont-Ferrand, Laboratoire AMP-CECOS, F-63003 Clermont-Ferrand, France
- UMR 1240 INSERM, IMoST, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
| | - Sandra Dollet
- UMR 1240 INSERM, IMoST, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
| | - Laure Chaput
- CHU Clermont-Ferrand, Laboratoire AMP-CECOS, F-63003 Clermont-Ferrand, France
- UMR 1240 INSERM, IMoST, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
| | - Céline Bourgne
- CHU Clermont Ferrand, Laboratoire d'Hématologie Biologique, F-63003 Clermont-Ferrand, France
| | - Marc Berger
- CHU Clermont Ferrand, Laboratoire d'Hématologie Biologique, F-63003 Clermont-Ferrand, France
| | - Bruno Pereira
- CHU Clermont-Ferrand, DRCI-Délégation Recherche Clinique et Innovation, F-63000 Clermont-Ferrand, France
| | - Andrei Tchirkov
- CHU Clermont-Ferrand, Service de Cytogénétique Médicale, F-63003 Clermont-Ferrand, France
| | - Florence Brugnon
- CHU Clermont-Ferrand, Laboratoire AMP-CECOS, F-63003 Clermont-Ferrand, France
- UMR 1240 INSERM, IMoST, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
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10
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Liu K, Mao X, Pan F, Chen Y, An R. Correlation analysis of sperm DNA fragmentation index with semen parameters and the effect of sperm DFI on outcomes of ART. Sci Rep 2023; 13:2717. [PMID: 36792684 PMCID: PMC9931767 DOI: 10.1038/s41598-023-28765-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 01/24/2023] [Indexed: 02/17/2023] Open
Abstract
Routine semen analysis provides limited information about a man's male reproductive potential and can not always fully explain male infertility. Many male infertilities are caused by sperm DNA defects that routine semen quality analyses fail to detect. In this study, we analyzed the association of sperm DNA fragmentation index (DFI) with the semen routine, sperm morphology, in vitro fertilization embryo transfer (IVF-ET)/intracytoplasmic sperm injection (ICSI). Further, we explored the predictive value of sperm DFI in evaluating male fertility and the outcome of IVF-ET/ICSI. Data on sperm DFI, sperm routine, and sperm morphology were collected from 1462 males with infertility. According to DFI levels, there were 468 cases in group I (DFI ≤ 15%), 518 cases in group II (15% < DFI < 30%), and 476 cases in group III (DFI ≥ 30%). The correlations of sperm DFI with semen routine and malformation rate were analyzed. Seminal plasma malondialdehyde (MDA), and total antioxidant capacity (TAC) were assessed. Sperm DFI, semen routine, and sperm morphology were detected in male patients of 101 pairs of IVF-ET/ICSI infertile couples and subdivided into IVF-I group (DFI ≤ 15%), IVF-II group (15% < DFI < 30%), IVF-III group (DFI ≥ 30%), ICSI-I group (DFI ≤ 15%), ICSI-II group (15% < DFI < 30%) and ICSI-III group (DFI ≥ 30%) according to DFI value. The effect of sperm DFI on the outcome of IVF-ET/ICSI was analyzed. There were significant differences in sperm survival rate, sperm concentration, and PR% between groupIII and group II (P < 0.01). There were significant differences in sperm survival rate, sperm concentration and PR% between group III and group I (P < 0.01). There was no significant difference in semen volume, age, abstinence days, or percentage of normal sperm between the three groups (P > 0.05). DFI was positively correlated with MDA content ( P < 0.01) and negatively correlated with TAC (P < 0.01). Sperm DFI was negatively correlated with sperm survival rate, sperm concentration, and PR% (P < 0.01). There was no correlation with age, abstinence days, semen volume, or percentage of normal-form sperm (r = 0.16, 0.05, 0.04, -0.18, p > 0.05). Compared with IVF-I group, the sperm concentration and PR were decreased in IVF-III group. The sperm malformation rate was higher in IVF-III group than that in IVF-II group. Comparatively, the PR was decreased in ICSI-III group. The sperm malformation rate was higher in ICSI-III group than that of the ICSI-I group (P < 0.05). There were no statistically significant differences in fertilization rate, cleavage rate, embryo rate, and clinical pregnancy rate between IVF group or ICSI group, and between all subgroups (P > 0.05). Sperm DFI is negatively associated with sperm survival rate, sperm concentration, and PR%. Antioxidants can decrease the rate of DNA fragmentation. Sperm DFI has proven to be very valuable in the male fertility evaluation, but its significance as a predictor of pregnancy outcomes following assisted reproductive technology. (ART) requires further investigation.
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Affiliation(s)
- KangSheng Liu
- grid.452438.c0000 0004 1760 8119Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710061 Shannxi China ,grid.459791.70000 0004 1757 7869Department of Clinical Laboratory, Women’s Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210029 Jiangsu China
| | - XiaoDong Mao
- grid.410745.30000 0004 1765 1045Department of Endocrinology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028 Jiangsu China
| | - Feng Pan
- grid.459791.70000 0004 1757 7869Department of Andrology, State Key Laboratory of Reproductive Medicine, Women’s Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210029 Jiangsu China
| | - YaJun Chen
- grid.459791.70000 0004 1757 7869Department of Clinical Laboratory, Women’s Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210029 Jiangsu China
| | - Ruifang An
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shannxi, China.
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11
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Fattet AJ, Chaillot M, Koscinski I. Telomere Length, a New Biomarker of Male (in)Fertility? A Systematic Review of the Literature. Genes (Basel) 2023; 14:425. [PMID: 36833352 PMCID: PMC9957201 DOI: 10.3390/genes14020425] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/26/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023] Open
Abstract
Male factors are suspected in around half cases of infertility, of which up to 40% are diagnosed as idiopathic. In the context of a continuously increased resort to ART and increased decline of semen parameters, it is of greatest interest to evaluate an additional potential biomarker of sperm quality. According to PRISMA guidelines, this systematic review of the literature selected studies evaluating telomere length in sperm and/or in leukocytes as a potential male fertility biomarker. Twenty-two publications (3168 participants) were included in this review of experimental evidence. For each study, authors determined if there was a correlation between telomere length and semen parameters or fertility outcomes. Of the 13 studies concerning sperm telomere length (STL) and semen parameters, ten found an association between short STL and altered parameters. Concerning the impact of STL on ART results, the data are conflicting. However, eight of the 13 included studies about fertility found significantly longer sperm telomeres in fertile men than in infertile men. In leukocytes, the seven studies reported conflicting findings. Shorter sperm telomeres appear to be associated with altered semen parameters or male infertility. Telomere length may be considered as a new molecular marker of spermatogenesis and sperm quality, and thus is related to male fertility potential. However, additional studies are needed to define the place of the STL in the assessment of individual fertility.
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Affiliation(s)
- Anne-Julie Fattet
- Centre d’AMP Majorelle-Atoutbio, 95 Rue Ambroise Paré, 54000 Nancy, France
| | - Maxime Chaillot
- Service de Médecine et Biologie du Développement et de la Reproduction, 38 Boulevard Jean Monnet, 44000 Nantes, France
- Faculté de Médecine, Université de Nantes, 44000 Nantes, France
| | - Isabelle Koscinski
- Inserm U1256, Nutrition Genetics Environmental Risks Exposure (NGERE), Université de Lorraine, 54000 Nancy, France
- Centre d’AMP Hôpital Saint Joseph, 26 Bd de Louvain, 13008 Marseille, France
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12
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Huang J, Chen H, Li N, Zhao Y. Emerging microfluidic technologies for sperm sorting. ENGINEERED REGENERATION 2023. [DOI: 10.1016/j.engreg.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
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13
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Jiang L, Kong F, Yao L, Zhang F, Wang S, Jin X, Tong X, Zhang S. A novel solution for freezing individual spermatozoa using a right angular cryopiece embedded in a grooved petri dish. Andrologia 2022; 54:e14619. [DOI: 10.1111/and.14619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 09/13/2022] [Accepted: 10/02/2022] [Indexed: 11/26/2022] Open
Affiliation(s)
- Ling‐Ying Jiang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province Hangzhou Zhejiang China
| | - Fei‐Fei Kong
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine 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 Hangzhou Zhejiang China
| | - Fu‐Xing Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
| | - Sha‐Sha Wang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
| | - Xiao‐Ying Jin
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
| | - Xiao‐Mei Tong
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province Hangzhou Zhejiang China
| | - Song‐Ying Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province Hangzhou Zhejiang China
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14
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Le MT, Dang HNT, Nguyen TV, Nguyen TTT, Nguyen QHV, Cao NT. Effects of sperm preparation techniques on sperm survivability and DNA fragmentation. J Int Med Res 2022; 50:3000605221097492. [PMID: 35545843 PMCID: PMC9112774 DOI: 10.1177/03000605221097492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 04/12/2022] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE This study was performed to determine the effect of swim-up (SU) and density gradient centrifugation (DGC) on sperm survival and DNA fragmentation. METHODS Individual semen samples were analyzed before each was divided into two aliquots (half for SU and half for DGC) for calculation of sperm survival and the DNA fragmentation index (DFI). Sperm DNA fragmentation was determined using the sperm chromatin dispersion test. RESULTS The DFI of the 63 semen samples processed using both procedures was lower than that of the fresh semen samples. The DFI was significantly lower for samples processed using the SU than DGC method. In the sperm survival test, the SU technique was associated with increased sperm motility and vitality following preparation. After 24 hours, however, the concentration and percentage of surviving sperm were significantly lower in the SU than DGC group. CONCLUSIONS Both semen preparation techniques help to minimize sperm DNA fragmentation; however, when the DFI is <30%, the SU technique is more appropriate than DGC. While DGC may be superior for intrauterine insemination, the SU method may be preferable for in vitro fertilization or maturation.
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Affiliation(s)
- Minh Tam Le
- Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Vietnam
- Department of Obstetrics and Gynecology, Hue University of Medicine and Pharmacy, Hue University, Vietnam
| | - Hong Nhan Thi Dang
- Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Vietnam
| | - Trung Van Nguyen
- Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Vietnam
| | - Thai Thanh Thi Nguyen
- Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Vietnam
| | - Quoc Huy Vu Nguyen
- Department of Obstetrics and Gynecology, Hue University of Medicine and Pharmacy, Hue University, Vietnam
| | - Ngoc Thanh Cao
- Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Vietnam
- Department of Obstetrics and Gynecology, Hue University of Medicine and Pharmacy, Hue University, Vietnam
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15
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Anifandis G, Samara M, Simopoulou M, Messini CI, Chatzimeletiou K, Thodou E, Daponte A, Georgiou I. Insights into the Role of Telomeres in Human Embryological Parameters. Opinions Regarding IVF. J Dev Biol 2021; 9:jdb9040049. [PMID: 34842724 PMCID: PMC8628962 DOI: 10.3390/jdb9040049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 12/30/2022] Open
Abstract
Telomeres promote genome integrity by protecting chromosome ends from the activation of the DNA damage response and protecting chromosomes from the loss of coding sequences due to the end replication problem. Telomere length (TL) is progressively shortened as age progresses, thus resulting in cellular senescence. Therefore, TL is in strong adverse linear correlation with aging. Mounting evidence supports the notion that telomeres and male/female infertility are in a close relationship, posing the biology of telomeres as a hot topic in the era of human-assisted reproduction. Specifically, the length of sperm telomeres is gradually increasing as men get older, while the telomere length of the oocytes seems not to follow similar patterns with that of sperm. Nonetheless, the telomere length of the embryos during the cleavage stages seems to have a paternal origin, but the telomere length can be further extended by telomerase activity during the blastocyst stage. The latter has been proposed as a new molecular biomarker with strong predictive value regarding male infertility. As far as the role of telomeres in assisted reproduction, the data is limited but the length of telomeres in both gametes seems to be affected mainly by the cause of infertility rather than the assisted reproductive therapy (ART) procedure itself. The present review aims to shed more light into the role of telomeres in human embryological parameters, including gametes and embryos and also presents opinions regarding the association between telomeres and in vitro fertilization (IVF).
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Affiliation(s)
- George Anifandis
- Department of Obstetrics and Gynecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41222 Larisa, Greece; (C.I.M.); (A.D.)
- Correspondence:
| | - Maria Samara
- Department of Anatomical Pathology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41222 Larisa, Greece; (M.S.); (E.T.)
| | - Mara Simopoulou
- Laboratory of Physiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Christina I. Messini
- Department of Obstetrics and Gynecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41222 Larisa, Greece; (C.I.M.); (A.D.)
| | - Katerina Chatzimeletiou
- Unit for Human Reproduction, 1st Department of Obstetrics and Gynecology, Faculty of Medicine, School of Health Sciences, Aristotelian University of Thessaloniki, 56403 Thessaloniki, Greece;
| | - Eleni Thodou
- Department of Anatomical Pathology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41222 Larisa, Greece; (M.S.); (E.T.)
| | - Alexandros Daponte
- Department of Obstetrics and Gynecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41222 Larisa, Greece; (C.I.M.); (A.D.)
| | - Ioannis Georgiou
- Laboratory of Medical Genetics, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece;
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16
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Halim B, Angellee J, Lubis HP, Bachsinar B. Sperm Quality and Deoxyribonucleic Acid Fragmentation after 5 and 10 min Centrifugation with Swim-Up Processing Technique: A Prospective Cohort Study. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
AIM: This study aimed to assess the difference in sperm concentration, total motility, progressive motility, and deoxyribonucleic acid (DNA) fragmentation index (DFI) before and after processing with 5 and 10 min swim-up (SU).
METHODS: Fifty patients who met the study inclusion criteria from June 2020 to October 2020 were subjected to routine semen and sperm DNA fragmentation analysis. Each of the samples was then divided into three tubes, one as control and the others were processed using the SU method with 5 and 10 min centrifugation time, respectively. After being processed, the samples were subjected again to routine semen and sperm DNA fragmentation analysis. The results were being compared among three groups.
RESULTS: The sperm concentration after 5 and 10 min SU (27.78–39.79 and 35.36–51.09, respectively; p < 0.05) was significantly higher compared to fresh semen (24.85–32.33). The total motility before and after 5 and 10 min SU were 43.78–51.08, 97.66–98.20, and 97.86–98.20, respectively. The progressive motility after 5 and 10 min SU (0–41 and 0–54, respectively) was significantly higher than fresh semen (0–24; p < 0.05). The DFI was significantly better after 5 min SU (3.82–6.98) compared to fresh semen and after 10 min SU (13.48–19.04 and 1–25, respectively; p < 0.05).
CONCLUSION: Prolonged centrifugation time may yield a higher number of sperm concentration and motility, but it may also lead to a higher DFI. Hence, a shorter centrifugation time should be used for a better semen quality intended for assisted reproductive technologies.
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17
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Dai C, Zhang Z, Shan G, Chu LT, Huang Z, Moskovtsev S, Librach C, Jarvi K, Sun Y. Advances in sperm analysis: techniques, discoveries and applications. Nat Rev Urol 2021; 18:447-467. [PMID: 34075227 DOI: 10.1038/s41585-021-00472-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2021] [Indexed: 02/05/2023]
Abstract
Infertility affects one in six couples worldwide, and fertility continues to deteriorate globally, partly owing to a decline in semen quality. Sperm analysis has a central role in diagnosing and treating male factor infertility. Many emerging techniques, such as digital holography, super-resolution microscopy and next-generation sequencing, have been developed that enable improved analysis of sperm motility, morphology and genetics to help overcome limitations in accuracy and consistency, and improve sperm selection for infertility treatment. These techniques have also improved our understanding of fundamental sperm physiology by enabling discoveries in sperm behaviour and molecular structures. Further progress in sperm analysis and integrating these techniques into laboratories and clinics requires multidisciplinary collaboration, which will increase discovery and improve clinical outcomes.
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Affiliation(s)
- Changsheng Dai
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada
| | - Zhuoran Zhang
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada
| | - Guanqiao Shan
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada
| | - Lap-Tak Chu
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada
| | - Zongjie Huang
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada
| | | | | | - Keith Jarvi
- Division of Urology, Mount Sinai Hospital, Toronto, Canada. .,Department of Surgery, University of Toronto, Toronto, Canada.
| | - Yu Sun
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada. .,Institute of Biomaterials & Biomedical Engineering, University of Toronto, Toronto, Canada. .,Department of Electrical and Computer Engineering, University of Toronto, Toronto, Canada. .,Department of Computer Science, University of Toronto, Toronto, Canada.
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18
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Sperm Oxidative Stress during In Vitro Manipulation and Its Effects on Sperm Function and Embryo Development. Antioxidants (Basel) 2021; 10:antiox10071025. [PMID: 34202126 PMCID: PMC8300781 DOI: 10.3390/antiox10071025] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 12/25/2022] Open
Abstract
Reactive oxygen species (ROS) generated at low levels during mitochondrial respiration have key roles in several signaling pathways. Oxidative stress (OS) arises when the generation of ROS exceeds the cell's antioxidant scavenging ability and leads to cell damage. Physiological ROS production in spermatozoa regulates essential functional characteristics such as motility, capacitation, acrosome reaction, hyperactivation, and sperm-oocyte fusion. OS can have detrimental effects on sperm function through lipid peroxidation, protein damage, and DNA strand breakage, which can eventually affect the fertility of an individual. Substantial evidence in the literature indicates that spermatozoa experiencing OS during in vitro manipulation procedures in human- and animal-assisted reproduction are increasingly associated with iatrogenic ROS production and eventual impairment of sperm function. Although a direct association between sperm OS and human assisted reproductive techniques (ART) outcomes after in vitro fertilization (IVF) and/or intracytoplasmic sperm injection (ICSI) is still a matter of debate, studies in animal models provide enough evidence on the adverse effects of sperm OS in vitro and defective fertilization and embryo development. This review summarized the literature on sperm OS in vitro, its effects on functional ability and embryo development, and the approaches that have been proposed to reduce iatrogenic sperm damage and altered embryonic development.
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19
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Raad G, Bakos HW, Bazzi M, Mourad Y, Fakih F, Shayya S, Mchantaf L, Fakih C. Differential impact of four sperm preparation techniques on sperm motility, morphology, DNA fragmentation, acrosome status, oxidative stress, and mitochondrial activity: A prospective study. Andrology 2021; 9:1549-1559. [PMID: 33999521 DOI: 10.1111/andr.13038] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 04/01/2021] [Accepted: 05/10/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Suboptimal human semen handling in vitro may induce sperm damage. However, the effects of semen swim-up, pellet swim-up, density gradient, and density gradient followed by SU on sperm motility, morphology, DNA fragmentation, acrosome reaction, intracellular reactive oxygen species, and mitochondrial activity were not fully understood. OBJECTIVES To study the impact of four sperm preparation techniques on sperm functional parameters. MATERIALS AND METHODS This study was conducted on 60 infertile men with a minimum sperm concentration of 20 × 106 /ml and total sperm motility of ≥30%. Each raw semen sample was divided into four aliquots. Each aliquot was prepared by one of the tested techniques. Various sperm characteristics were assessed before and after sperm preparation. RESULTS Density gradient and density gradient followed by SU resulted in significantly higher DNA fragmentation percentages compared with semen swim-up (p < 0.001 and p < 0.001, respectively) and pellet swim-up (p < 0.001 and p < 0.001, respectively). Significantly higher percentages of spermatozoa with intact acrosome were detected in semen swim-up (p < 0.001) and pellet swim-up (p < 0.001) compared with raw semen. The percentage of reactive oxygen species-positive spermatozoa was significantly higher after pellet swim-up (p < 0.001), density gradient (p < 0.001), and density gradient followed by SU (p < 0.001) than raw semen. In addition, the percentages of 100% stained midpiece (active mitochondria) were significantly higher in semen swim-up (p < 0.001) and pellet swim-up (p < 0.001) compared with raw semen. DISCUSSION AND CONCLUSION To the best of our knowledge, this is the first report comparing the impact of these techniques on various sperm functional parameters. Semen swim-up was more effective than density gradient in selecting better spermatozoa in terms of DNA integrity, reactive oxygen species levels, acrosome status, and mitochondrial activity. Randomized clinical trials comparing these four techniques are required to test their impact on embryo development and pregnancy outcomes.
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Affiliation(s)
- Georges Raad
- Al Hadi Laboratory and Medical Centre, Beirut, Lebanon.,Holy Spirit University of Kaslik (USEK), Jounieh, Lebanon
| | - Hassan W Bakos
- Monash IVF Group, Sydney, NSW, Australia.,University of Newcastle, Newcastle, NSW, Australia
| | - Marwa Bazzi
- Al Hadi Laboratory and Medical Centre, Beirut, Lebanon
| | - Youmna Mourad
- Al Hadi Laboratory and Medical Centre, Beirut, Lebanon
| | - Fadi Fakih
- Al Hadi Laboratory and Medical Centre, Beirut, Lebanon
| | - Salman Shayya
- American University of Science and Technology, Ashrafieh, Lebanon
| | | | - Chadi Fakih
- Al Hadi Laboratory and Medical Centre, Beirut, Lebanon.,Lebanese University, Hadath, Lebanon
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20
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Zhao F, Whiting S, Lambourne S, Aitken RJ, Sun YP. Melatonin alleviates heat stress-induced oxidative stress and apoptosis in human spermatozoa. Free Radic Biol Med 2021; 164:410-416. [PMID: 33482333 DOI: 10.1016/j.freeradbiomed.2021.01.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 01/05/2021] [Accepted: 01/07/2021] [Indexed: 02/07/2023]
Abstract
Oxidative stress generates a large amount of reactive oxygen species (ROS) and affects sperm quality via damaging sperm DNA and compromising the intracellular homeostasis in human spermatozoa. In assisted reproductive technology (ART), it is substantial to prevent spermatozoa from ROS attack. The pineal hormone melatonin has the natural antioxidant capacity and can scavenge ROS. To the best of our knowledge, however, there are presently no studies investigating if melatonin can protect human spermatozoa from heat-induced oxidative damage. Herein, we induced oxidative stress in human spermatozoa with heat treatment, and determined that melatonin could protect human spermatozoa from heat-induced oxidative stress. We first confirmed that heat stress-induced oxidative stress damaged human spermatozoa by decreasing sperm motility and viability. Furthermore, the pretreatment of human spermatozoa by melatonin was able to alleviate such damage by suppressing sperm mitochondrial ROS generation, increasing mitochondrial membrane potential, reducing the formation of the lipid peroxidation product, 4-HNE, and reducing sperm DNA damage and apoptosis. Collectively, these findings suggest that melatonin is useful as a potential treatment option for male infertility caused by heat-induced oxidative stress.
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Affiliation(s)
- Feifei Zhao
- Center for Reproductive Medicine, Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Sara Whiting
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - Sarah Lambourne
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - R John Aitken
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia.
| | - Ying-Pu Sun
- Center for Reproductive Medicine, Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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21
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Hernández-Silva G, López-Torres AS, Maldonado-Rosas I, Mata-Martínez E, Larrea F, Torres-Flores V, Treviño CL, Chirinos M. Effects of Semen Processing on Sperm Function: Differences between Swim-Up and Density Gradient Centrifugation. World J Mens Health 2021; 39:740-749. [PMID: 33474848 PMCID: PMC8443982 DOI: 10.5534/wjmh.200115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/21/2020] [Accepted: 10/21/2020] [Indexed: 11/15/2022] Open
Abstract
Purpose Andrology research has evolved notoriously in the latest years, particularly since male factor contribution to couple infertility has been undoubtedly demonstrated. However, sperm function investigations results are sometimes contradictory, probably as a result of the use of different sperm processing techniques. In this work, we underwent a systematic functional comparison of human sperm samples simultaneously processed by swim-up and density gradient centrifugation, which are the preferred sperm processing methods used in basic and clinical laboratories. Materials and Methods To compare functional characteristics of sperm isolated by swim-up and density gradient centrifugation followed by incubation at different times under capacitating conditions. Results Semen samples processed in parallel by these two procedures resulted in sperm preparations with significant differences in redox state, spontaneous intracellular calcium oscillations, hyperactivation, protein tyrosine phosphorylation, and acrosome reaction responsivity to calcium ionophore. Such differences showed time-dependent specific patterns for spontaneous intracellular calcium oscillations, hyperactivation and protein tyrosine phosphorylation. Sperm retrieved by density gradient centrifugation showed more hyperactivation and tyrosine phosphorylation than swim-up sperm, suggesting a higher degree of capacitation. Conclusions Our results account for functional differences observed in spermatozoa processed with these two methods and therefore may contribute to a better interpretation of outcomes obtained in different laboratories as well as to improve experimental designs aimed to study sperm physiology and fertility potential.
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Affiliation(s)
- Gabriela Hernández-Silva
- Department of Reproductive Biology Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Aideé S López-Torres
- Department of Reproductive Biology Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | | | - Esperanza Mata-Martínez
- Department of Developmental Genetics and Molecular Physiology, Instituto de Biotecnología, UNAM, Cuernavaca, Mexico
| | - Fernando Larrea
- Department of Reproductive Biology Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Víctor Torres-Flores
- Laboratory of Biomembranes, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Claudia L Treviño
- Department of Developmental Genetics and Molecular Physiology, Instituto de Biotecnología, UNAM, Cuernavaca, Mexico
| | - Mayel Chirinos
- Department of Reproductive Biology Dr. Carlos Gual Castro, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
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22
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Anbari F, Khalili MA, Sultan Ahamed AM, Mangoli E, Nabi A, Dehghanpour F, Sabour M. Microfluidic sperm selection yields higher sperm quality compared to conventional method in ICSI program: A pilot study. Syst Biol Reprod Med 2021; 67:137-143. [PMID: 33451252 DOI: 10.1080/19396368.2020.1837994] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
An appropriate preparation technique, should be capable of isolating highquality spermatozoa for intracytoplasmic sperm injection (ICSI). The aim was to assess sperm quality parameters, DNA integrity, embryo development, and clinical outcomes using a practical and accessible Microfluidic Sperm Sorting (MSS) technique. A total of 95 ICSI cases performed using sperm samples were prepared with our MSS (group 1) or by Direct Swim Up (DSU; control) method (group 2). Both sperm quality parameters and sperm DNA fragmentation (SDF) were compared between the groups. DNA fragmentation was assessed using Sperm Chromatin Dispersion (SCD) test and fine morphology was assessed using Motile Sperm Organelle Morphology Examination (MSOME). Embryo development and clinical outcomes were compared between the groups. In the MSS group, progressive motility and the fraction of Class I sperm morphology sperm were significantly higher compared to DSU group (P < 0.01 and P < 0.001, respectively). Moreover, the rates of DNA fragmentation and immotile spermatozoa were significantly lower in MSS when compared to DSU group (P < 0.001). Also, higher rates of high-quality embryo formation (P < 0.001), implantation (P = 0.04) and pregnancy (P = 0.05) were achieved in the MSS compared to DSU groups. The MSS technique proved to be a noninvasive, disposable, easy to use, and inexpensive method for separation of high-quality spermatozoa. Both laboratory parameters and clinical outcomes were improved with application of MSS for neat sperm collection in ICSI.AbbreviationsICSI: Intracytoplasmic Sperm Injection; MSS: Microfluidic Sperm Sorting; Sperm DNA Fragmentation (SDF); SCD: Sperm Chromatin Dispersion; MSOME: Motile Sperm Organelle Morphology Examination; DGC: Density Gradient Centrifugation; DSU: Direct Swim Up; ROS: Reactive Oxygen Species; ART: Assisted Reproducetive Technology.
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Affiliation(s)
- Fatemeh Anbari
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Reproductive Biology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Ali Khalili
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Reproductive Biology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | | | - Esmat Mangoli
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Reproductive Biology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ali Nabi
- Department of Reproductive Biology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Andrology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fatemeh Dehghanpour
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Reproductive Biology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mojdeh Sabour
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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23
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Iannuzzi A, Della Valle G, Russo M, Longobardi V, Albero G, De Canditiis C, Kosior MA, Pistucci R, Gasparrini B. Evaluation of bovine sperm telomere length and association with semen quality. Theriogenology 2020; 158:227-232. [PMID: 32980685 DOI: 10.1016/j.theriogenology.2020.09.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 09/11/2020] [Accepted: 09/14/2020] [Indexed: 12/19/2022]
Abstract
The study aimed to evaluate if the sperm telomere length can be considered as a new biomarker for sperm quality in bulls. Sperm Telomere Length was evaluated by Monochrome Multiplex Quantitative PCR in group A (n = 8) and group B (n = 8) bulls, classified according to standard semen analysis. Also, this parameter was measured before and after Percoll gradient separation within bulls that produced semen of satisfactory quality. Sperm telomere length, measured as T/S ratio (average ratio of telomere repeats copy number to a single copy gene), was higher in group A than in group B bulls (0.77 ± 0.03 vs 0.43 ± 0.06; P < 0.01). Sperm telomere length was positively correlated with motility, viability and membrane integrity, and it was negatively correlated with sperm anomalies. Furthermore, Percoll gradient selected sperms with higher T/S ratio than unselected sperms (1.19 ± 0.02 vs 0.67 ± 0.03). These results suggest that sperm telomere length can be used as a new marker of bovine semen quality.
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Affiliation(s)
- Alessandra Iannuzzi
- National Research Council (CNR), ISPAAM, Laboratory of Animal Cytogenetics and Genomics, Via Argine, 1085, 80147, Naples, Italy
| | - Giovanni Della Valle
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Naples, Italy
| | - Marco Russo
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Naples, Italy.
| | - Valentina Longobardi
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Naples, Italy; Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via De Crecchio 7, 80138, Naples, Italy
| | - Giuseppe Albero
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Naples, Italy
| | - Carolina De Canditiis
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Naples, Italy
| | - Michal Andrzej Kosior
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Naples, Italy
| | - Ramona Pistucci
- National Research Council (CNR), ISPAAM, Laboratory of Animal Cytogenetics and Genomics, Via Argine, 1085, 80147, Naples, Italy
| | - Bianca Gasparrini
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Naples, Italy
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24
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Zhang Y, Cheng J, Ou J, Liu Z, Liu Y, Zang ZJ. Diagnostic performance of discontinuous density gradient centrifugation for estimating human semen quality. Andrology 2020; 9:196-203. [PMID: 32805757 DOI: 10.1111/andr.12892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/13/2020] [Accepted: 08/13/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND Semen analysis plays an important role in the diagnosis of male infertility. However, many studies have demonstrated that the current methods of semen analysis are inefficient for assessing male fertility. OBJECTIVE To test whether prior discontinuous density gradient centrifugation (DDCG) improves the performance of semen analysis in diagnosing male infertility. MATERIALS AND METHODS Infertile men and fertile men were recruited from the clinic. Pre- and post-DDGC values for the semen parameters of sperm concentration, total sperm number, percent total motility, percent progressive motility, percent normal sperm morphology, and sperm DNA fragmentation rate were compared. RESULTS A total of 528 men (252 infertile men and 276 fertile men) were enrolled in the present study. After DDGC, sensitivity was significantly increased for sperm concentration, total sperm number, and sperm morphology (P < .01); specificity was significantly increased for progressive motility and sperm morphology (P < .01); and diagnostic accuracy was significantly improved for all of these parameters (area under the curve (AUC): P < .01). Total motility and sperm DNA fragmentation rate exhibited no obvious change in sensitivity, specificity or accuracy after DDGC (all P > .01). For the combination of all these semen parameters, diagnostic accuracy improved significantly after DDGC (AUC: P < .01). In a multiple regression analysis, only sperm morphology and sperm DNA fragmentation rate had P values less than 0.05 before DDGC, whereas all parameters except total sperm number contributed to the equation after DDGC. DISCUSSION DDGC is a mature, standardized procedure for clinical commonly used to optimize spermatozoa. The diagnostic accuracy of semen analysis was significantly improved after DDGC, which indicated that assessing "functional spermatozoa" might be a more suitable method for semen analysis than the WHO 2010 criteria. CONCLUSION Assessing semen parameters after DDGC might improve their diagnostic accuracy for male infertility.
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Affiliation(s)
- Yanan Zhang
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Juan Cheng
- Department of Gynecology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jianping Ou
- Center for Reproduction Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zhuojie Liu
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yonghui Liu
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zhi-Jun Zang
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
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25
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Lopes AC, Oliveira PF, Pinto S, Almeida C, Pinho MJ, Sá R, Rocha E, Barros A, Sousa M. Discordance between human sperm quality and telomere length following differential gradient separation/swim-up. J Assist Reprod Genet 2020; 37:2581-2603. [PMID: 32767207 DOI: 10.1007/s10815-020-01897-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 07/20/2020] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Strong evidence has suggested an important role of telomeres in meiosis, fertilization, and embryo development. PURPOSE To determine if sperm telomere length (STL) in sperm purified by differential gradient centrifugation followed by swim-up (selected STL) is correlated with sperm quality and clinical outcomes. METHODS Relative selected STL was assessed by quantitative polymerase chain reaction (Q-PCR) in 78 consecutive assisted reproductive technology (ART) treatments during 2017. Statistical analyses were performed in the totality of patients, and in normozoospermic and non-normozoospermic patients. These included correlations between selected STL and sperm quality parameters, embryological parameters (multivariable linear regression), and clinical parameters (multivariable logistic regression). RESULTS No significant correlations were found between selected STL and sperm quality in the total population. However, selected STL was significantly correlated with total sperm count (r = 0.361; P = 0.039) and sperm DNA fragmentation-post-acrosomal region pattern (r = - 0.464; P = 0.030) in normozoospermic patients. No relation was observed between selected STL and clinical outcomes in any clinical group. CONCLUSIONS As the correlations observed in normozoospermic patients were not representative of the whole heterogeneous population, differences in the sperm characteristics of the study population may lead to discrepant results when evaluating the association of STL with sperm quality. Since the total population selected STL was not related with sperm quality and with clinical outcomes, results do not support the use of selected STL measurement to evaluate the reproductive potential of the male patient or to predict the success rates of ART treatments.
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Affiliation(s)
- Ana Catarina Lopes
- Laboratory of Cell Biology, Department of Microscopy, Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.,Department of Life Sciences, Faculty of Science and Technology, New University of Lisbon, Campus Caparica, 2829-516, Caparica, Portugal
| | - Pedro Fontes Oliveira
- Laboratory of Cell Biology, Department of Microscopy, Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.,Department of Genetics, Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal.,Institute of Research and Innovation in Health, University of Porto, 4200-135, Porto, Portugal
| | - Soraia Pinto
- Centre for Reproductive Genetics Prof. Alberto Barros, 4100-009, Porto, Portugal
| | - Carolina Almeida
- Department of Genetics, Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal
| | - Maria João Pinho
- Department of Genetics, Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal
| | - Rosália Sá
- Laboratory of Cell Biology, Department of Microscopy, Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.,Multidisciplinary Unit for Biomedical Research, Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313, Porto, Portugal
| | - Eduardo Rocha
- Laboratory of Histology and Embryology, Department of Microscopy, Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313, Porto, Portugal
| | - Alberto Barros
- Department of Genetics, Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal.,Institute of Research and Innovation in Health, University of Porto, 4200-135, Porto, Portugal.,Centre for Reproductive Genetics Prof. Alberto Barros, 4100-009, Porto, Portugal
| | - Mário Sousa
- Laboratory of Cell Biology, Department of Microscopy, Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal. .,Multidisciplinary Unit for Biomedical Research, Institute of Biomedical Sciences Abel Salazar, University of Porto, 4050-313, Porto, Portugal.
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26
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Pinto S, Carrageta DF, Alves MG, Rocha A, Agarwal A, Barros A, Oliveira PF. Sperm selection strategies and their impact on assisted reproductive technology outcomes. Andrologia 2020; 53:e13725. [PMID: 32596880 DOI: 10.1111/and.13725] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/28/2020] [Accepted: 05/31/2020] [Indexed: 12/13/2022] Open
Abstract
The application of assisted reproductive technologies (ART) has revolutionised the treatment of human infertility, giving hope to the patients previously considered incapable of establishing pregnancy. While semen analysis is performed to access whether a sample has an adequate number of viable, motile and morphologically normal sperm cells able to achieve fertilisation, sperm selection techniques for ART aim to isolate the most competent spermatozoon which is characterised by the highest fertilising potential. Based on the semen analysis results, the correct sperm selection technique must be chosen and applied. In this review, different sperm selection strategies for retrieving spermatozoa with the highest fertilising potential and their impact on ART outcomes are discussed. In addition, advantages and disadvantages of each method and the best suited techniques for each clinical scenario are described.
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Affiliation(s)
- Soraia Pinto
- Centre for Reproductive Genetics A. Barros, Porto, Portugal
| | - David F Carrageta
- Department of Microscopy and Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Marco G Alves
- Department of Microscopy and Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - António Rocha
- CECA/ICETA - Centro de Estudos de Ciência Animal, Universidade do Porto & Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Alberto Barros
- Centre for Reproductive Genetics A. Barros, Porto, Portugal.,Department of Genetics, Faculty of Medicine, University of Porto, Porto, Portugal.,i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Pedro F Oliveira
- QOPNA & LAQV, Department of Chemistry, University of Aveiro, Aveiro, Portugal
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27
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Rocca MS, Foresta C, Ferlin A. Telomere length: lights and shadows on their role in human reproduction. Biol Reprod 2020; 100:305-317. [PMID: 30277496 DOI: 10.1093/biolre/ioy208] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 09/19/2018] [Accepted: 09/28/2018] [Indexed: 12/13/2022] Open
Abstract
Telomeres are repeated DNA sequences whose main function is to preserve genome stability, protecting chromosomes ends from shortening caused by progressive loss during each cell replication or DNA damage. Telomere length regulation is normally achieved by telomerase enzyme, whose activity is progressively shut off during embryonic differentiation in somatic tissues, whereas it is maintained in germ cells, activated lymphocytes, and certain types of stem cell populations. The maintenance of telomerase activity for a longer time is necessary for germ cells to delay telomere erosion, thus avoiding chromosome segregation defects that could contribute to aneuploid or unbalanced gametes. Over the last few years, telomere biology has become an important topic in the field of human reproduction, encouraging several studies to focus on the relation between telomere length and spermatogenesis and male fertility, embryo development and quality during assisted reproductive treatment, and female pathologies as polycystic ovary, premature ovarian insufficiency, and endometriosis. This review analyzes whether telomere length in germ cells is related to reproduction fitness, whether telomere length is related to pathologies associated with male and female fertility, and whether measurement of telomere length could represent a biomarker of germ cell and embryo quality. Telomere length could be considered a molecular marker of spermatogenesis and sperm quality and is somewhat related to male fertility potential. Fewer evidence, although promising, is available for oocytes, female (in)fertility, and embryo quality. The increasing evidence for a role of telomeres and telomere length in human reproduction, indeed, has expanded the historical view of considering them just a marker of aging. Telomere length might have in the future a prognostic potential in couple infertility, especially useful to select best germ cells with the greatest potential of fertilization.
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Affiliation(s)
- Maria Santa Rocca
- Department of Medicine, Unit of Andrology and Reproductive Medicine, University of Padova, Padova, Italy
| | - Carlo Foresta
- Department of Medicine, Unit of Andrology and Reproductive Medicine, University of Padova, Padova, Italy
| | - Alberto Ferlin
- Department of Clinical and Experimental Sciences, Unit of Endocrinology, University of Brescia, Brescia, Italy
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28
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Sperm enrichment from poor semen samples by double density gradient centrifugation in combination with swim-up for IVF cycles. Sci Rep 2020; 10:2286. [PMID: 32042061 PMCID: PMC7010666 DOI: 10.1038/s41598-020-59347-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 01/28/2020] [Indexed: 11/24/2022] Open
Abstract
Sperm preparation in IVF cycles using density gradient centrifugation (DGC) in combination with swim-up (SU) has been widely adopted in reproductive centres worldwide. It is a fact that the sperm recovery rate following one DGC from poor semen samples (showing liquefaction defects/containing too many unresolvable clots or rare sperm) is relatively low. Our results showed that double DGC (DDGC) is effective at increasing the sperm recovery rate from poor semen samples. However, DDGC may increase the mechanical stress of sperm, thereby potentially impairing embryo development. Therefore, it is necessary to evaluate the safety of using sperm prepared by DDGC/SU for IVF cycles. In this study, we retrospectively analysed the data generated from a total of 529 IVF cycles (from June 2017 to June 2018), and these IVF cycles contributed 622 transfer cycles (from June 2017 to December 2018) in Changzhou Maternal and Child Health Care Hospital. Of them, 306 IVF cycles and the related 355 transfer cycles (normal semen samples prepared by DGC/SU) were set as the normal group, while 223 IVF cycles and the related 267 transfer cycles (poor semen prepared by DDGC/SU) were set as the observation group. The main outcome measures, including the normal fertilization rate, top D3 embryo formation rate, blastocyte formation rate, clinical pregnancy rate and live birth rate, birth weight and duration of pregnancy, were compared between the two groups. Compared to semen in the DGC/SU group, semen in the DDGC/SU group showed increased levels of the DNA fragmentation index (DFI) and reduced sperm concentration, percentage of progressive motility (PR) sperm, and percentage of normal morphology sperm. The indicators reflecting in vitro embryo development and clinical outcomes were similar in the DGC/SU group and DDGC/SU group, including the normal fertilization rate, top D3 embryo formation rate, blastocyte formation rate, pregnancy rate, implantation rate, spontaneous abortion rate, live birth rate, birth weight and duration of pregnancy. Furthermore, we found that the 1PN zygote formation rate was significantly lower in the DDGC/SU group than that in the DGC/SU group. We concluded that oocytes fertilized by sperm from poor semen samples separated by DDGC/SU achieved the same outcomes as oocytes fertilized by sperm from normal semen separated by DGC/SU, suggesting that DDGC/SU is an effective and safe method of sperm enrichment for poor semen samples in IVF. The main contribution of the present study is the verification of the effectiveness of DDGC/SU in improving sperm recovery from poor semen samples and the safety of using sperm prepared by DDGC/SU for IVF.
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29
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Westerman R. Biomarkers for demographic research: sperm counts and other male infertility biomarkers. BIODEMOGRAPHY AND SOCIAL BIOLOGY 2020; 65:73-87. [PMID: 32065536 DOI: 10.1080/19485565.2019.1706150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Some male infertility biomarkers are etiologically linked to idiopathic infertility in men, the direct cause of which often cannot be determined with conventional sperm count parameters. Open questions remain regarding the universal and generic infertility definitions that cover and combine the clinical, epidemiological, and demographic perspectives. The main effort in the application of these infertility biomarkers are accounted by more or less strict discrimination criteria. For male infertility, beyond classical sperm count assessments, the DNA fragmentation index (DFI) is an adequate biomarker. DFI strongly correlates with pregnancy rates and even strict discrimination criteria for infertility outcomes. Other common biomarkers are reactive oxygen species (ROS) and antisperm antibodies (ASAs), which can explain some biomedical infertility disorders within major constraints. More frequently applied in demographic research, telomere length component analysis is based on identifying the genetic impact of cellular longevity. Sperm telomere length is becoming established as a potential biomarker in infertility research. The aim of this review is to provide an overview of the current status and limitations to the application of novel biomarkers, including TEX101, for infertility research. The review also discusses potential options for the use of biomarkers in population-based studies.Abbreviations: ASAs: antisperm antibodies; DFI: DNA fragmentation index; DNA: deoxyribonucleic acid; ECM1: extracellular matrix protein 1; FSH: follicle stimulating hormone; HS: hypospermatogenesis: IVF: in vitro fertilization; LDHC: L-lactata dehydrogenase C chain; MA: maturation arrest; microTESE: microdissection testicular sperm extraction; NOA: nonobstructive azoospermia; NP: nonprogressive; OA: obstructive azoospermia; pH: potential Hyrogenii (pH-value); PR: progressive; PTGDS: prostaglandin D synthese; ROS: reactive oxygen species; SA: semen analysis; SCO: sertoli cell only; SCSA: sperm chromatin structure assay (SCSA); TL: telomere length; TESE: testicular sperm extraction; TEX101: a glycoprotein that belongs to Ly6/urokinase type plasminogen activator receptor-like protein (uPAR)(LU) superfamily, to be a germ-cell-specific molecular sperm extraction; TUNEL: terminal deoxnucleotidyl dispersion tranferase dUTP nick-end labeling; WHO: World Health Organization.
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Affiliation(s)
- Ronny Westerman
- Competence Center Mortality-Follow-Up, German National Cohort, Federal Institute for Population Research, Wiesbaden, Germany
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Navarro-Rubio S, Güell F. Understanding the correlation between artificial insemination and offspring health outcomes. Birth Defects Res 2020; 112:7-18. [PMID: 31837206 DOI: 10.1002/bdr2.1617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/24/2019] [Accepted: 11/03/2019] [Indexed: 11/12/2022]
Abstract
Although numerous articles have shown intracytoplasmic sperm injection and in vitro fertilization to be correlated with increased risk of disease, a few works have been published on the risks associated with artificial insemination. Meanwhile, questions about the possible causes underlying these correlations have remained in the background. The main objective of this work is not to review the risks associated with artificial insemination, but rather to describe how developmental processes may be affected by these techniques. Thus, we offer a theoretical framework for understanding the possible causes that underlie the correlation between low-complexity or milder techniques and offspring health outcomes.
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Affiliation(s)
- Sonsoles Navarro-Rubio
- Mind-brain group, Institute for Culture and Society (ICS), University of Navarra, Pamplona, Spain
| | - Francisco Güell
- Mind-brain group, Institute for Culture and Society (ICS), University of Navarra, Pamplona, Spain
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Oseguera-López I, Ruiz-Díaz S, Ramos-Ibeas P, Pérez-Cerezales S. Novel Techniques of Sperm Selection for Improving IVF and ICSI Outcomes. Front Cell Dev Biol 2019; 7:298. [PMID: 31850340 PMCID: PMC6896825 DOI: 10.3389/fcell.2019.00298] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 11/07/2019] [Indexed: 12/12/2022] Open
Abstract
Almost 50% of the infertility cases are due to male factors. Assisted reproductive technologies (ARTs) allow to overcome the incapacity of these patients' spermatozoa to fertilize the oocyte and produce a viable and healthy offspring, but the efficiency of the different techniques has still the potential to improve. According to the latest reports of the European Society of Human Reproduction and Embryology (ESHRE) and the Centers for Disease Control and Prevention of the United States (CDC), the percentages of deliveries per ART cycle in 2014 and 2016 were 21 and 22%, respectively. Among the reasons for this relatively low efficiency, the quality of the spermatozoa has been pointed out as critical, and the presence of high percentages of DNA-damaged spermatozoa in patients' ejaculates is possibly one of the main factors reducing the ARTs outcomes. Thus, one of the main challenges in reproductive medicine is to ensure the highest quality of the spermatozoa used in ARTs, and specifically, in terms of genetic integrity. The latest techniques for the preparation and selection of human spermatozoa are herein discussed focusing on those proven to improve one or several of the following parameters: sperm genetic integrity, fertilization capacity, embryo production, and in vitro survival, as well as pregnancy and delivery rates following in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI). In addition, we discuss the potential of techniques developed in non-human mammals that could be further transferred to the clinic.
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Affiliation(s)
| | - Sara Ruiz-Díaz
- Mistral Fertility Clinics S.L., Clínica Tambre, Madrid, Spain
- Department of Animal Reproduction, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain
| | - Priscila Ramos-Ibeas
- Department of Animal Reproduction, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain
| | - Serafín Pérez-Cerezales
- Department of Animal Reproduction, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain
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Should we consider telomere length and telomerase activity in male factor infertility? Curr Opin Obstet Gynecol 2019; 30:197-202. [PMID: 29664790 DOI: 10.1097/gco.0000000000000451] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PURPOSE OF REVIEW The purpose of this review is to analyze what is known to date about the relation between telomeres and male fertility, and if it is possible for telomeres, or elements related to them, to be used as new prognostic biomarkers in fertility treatment. RECENT FINDINGS Cells in germ series, including spermatozoids, have longer telomeres (10-20 kb), and do not seem to undergo the shortening that takes place in somatic cells with age as they present telomerase activity. Longer telomere length found in the sperm of older fathers, influences their offspring possessing cells with longer telomere length. Infertile patients have spermatozoids with shorter telomere length than fertile people, but telomere length does neither correlate with the sperm concentration, mobility or morphology, nor with the DNA fragmentation indices (DFI) of spermatozoids. Embryo quality rate and transplantable embryo rate are related with the telomere length of spermatozoids (STL), but pregnancy rates are not affected. SUMMARY Telomere length and telomerase levels can be used as biomarkers of male fertility. Higher STL can have beneficial effects on fertility, thus the use of spermatozoids with longer telomere length in an assisted reproduction technique (ART) could be one way of solving some infertility cases.
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Yang Q, Luo X, Bai R, Zhao F, Dai S, Li F, Zhu J, Liu J, Niu W, Sun Y. Shorter leukocyte telomere length is associated with risk of nonobstructive azoospermia. Fertil Steril 2019; 110:648-654.e1. [PMID: 30196961 DOI: 10.1016/j.fertnstert.2018.05.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 05/03/2018] [Accepted: 05/08/2018] [Indexed: 10/28/2022]
Abstract
OBJECTIVE To determine the association between leukocyte telomere length and the risk of nonobstructive azoospermia (NOA). DESIGN The mean leukocyte telomere length (LTL) among men with NOA, obstructive azoospermia (OA), and normospermic subjects was determined by quantitative polymerase chain reaction (PCR). We used logistic regression to investigate the association between LTL and the risk of NOA after adjustment for age and body mass index (BMI). Partial correlation analysis was also used to evaluate the relationship of clinical parameters with the mean LTL among men with OA and NOA. SETTING Reproductive medicine center. PATIENTS(S) A total of 866 men, including 270 normospermic controls, 247 OA and 349 NOA patients. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Leukocyte telomere length. RESULT(S) The mean relative LTL of men with NOA was significantly shorter than that of those with OA and in normospermic controls (odds ratio [OR] 0.81, 95% confidence interval [CI] 0.64-0.98 vs. OR 0.92, 95% CI 0.70-1.24 vs. OR 0.99, 95% CI 0.83-1.22), respectively). Subjects with shorter telomeres (lowest tertile) had a significantly higher risk of NOA than those with longer telomeres (highest tertile). Interestingly, we also found that a low relative LTL was associated with poor efficiency of spermatogenesis using the Johnsen score after testis biopsy and histopathology in azoospermic patients, after adjusting for patient age and BMI. CONCLUSION(S) This is the first report that short LTL is associated with NOA, shedding light on an important biological pathway involved in the etiology of this form of male factor infertility.
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Affiliation(s)
- Qingling Yang
- Reproductive Medical Center, First Affiliated Hospital of Zhengzhou University, and Henan Province Key Laboratory for Reproduction and Genetics, Zhengzhou, Henan, People's Republic of China
| | - Xiaoyan Luo
- Reproductive Medical Center, First Affiliated Hospital of Zhengzhou University, and Henan Province Key Laboratory for Reproduction and Genetics, Zhengzhou, Henan, People's Republic of China
| | - Rui Bai
- Reproductive Medical Center, First Affiliated Hospital of Zhengzhou University, and Henan Province Key Laboratory for Reproduction and Genetics, Zhengzhou, Henan, People's Republic of China
| | - Feifei Zhao
- Reproductive Medical Center, First Affiliated Hospital of Zhengzhou University, and Henan Province Key Laboratory for Reproduction and Genetics, Zhengzhou, Henan, People's Republic of China
| | - Shanjun Dai
- Reproductive Medical Center, First Affiliated Hospital of Zhengzhou University, and Henan Province Key Laboratory for Reproduction and Genetics, Zhengzhou, Henan, People's Republic of China
| | - Fangyuan Li
- Reproductive Medical Center, First Affiliated Hospital of Zhengzhou University, and Henan Province Key Laboratory for Reproduction and Genetics, Zhengzhou, Henan, People's Republic of China
| | - Jing Zhu
- Reproductive Medical Center, First Affiliated Hospital of Zhengzhou University, and Henan Province Key Laboratory for Reproduction and Genetics, Zhengzhou, Henan, People's Republic of China
| | - Jinhao Liu
- Reproductive Medical Center, First Affiliated Hospital of Zhengzhou University, and Henan Province Key Laboratory for Reproduction and Genetics, Zhengzhou, Henan, People's Republic of China
| | - Wenbin Niu
- Reproductive Medical Center, First Affiliated Hospital of Zhengzhou University, and Henan Province Key Laboratory for Reproduction and Genetics, Zhengzhou, Henan, People's Republic of China
| | - Yingpu Sun
- Reproductive Medical Center, First Affiliated Hospital of Zhengzhou University, and Henan Province Key Laboratory for Reproduction and Genetics, Zhengzhou, Henan, People's Republic of China.
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Tarozzi N, Nadalini M, Borini A. Effect on Sperm DNA Quality Following Sperm Selection for ART: New Insights. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1166:169-187. [DOI: 10.1007/978-3-030-21664-1_10] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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DNA Damage and Repair in Human Reproductive Cells. Int J Mol Sci 2018; 20:ijms20010031. [PMID: 30577615 PMCID: PMC6337641 DOI: 10.3390/ijms20010031] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/17/2018] [Accepted: 12/20/2018] [Indexed: 12/20/2022] Open
Abstract
The fundamental underlying paradigm of sexual reproduction is the production of male and female gametes of sufficient genetic difference and quality that, following syngamy, they result in embryos with genomic potential to allow for future adaptive change and the ability to respond to selective pressure. The fusion of dissimilar gametes resulting in the formation of a normal and viable embryo is known as anisogamy, and is concomitant with precise structural, physiological, and molecular control of gamete function for species survival. However, along the reproductive life cycle of all organisms, both male and female gametes can be exposed to an array of “stressors” that may adversely affect the composition and biological integrity of their proteins, lipids and nucleic acids, that may consequently compromise their capacity to produce normal embryos. The aim of this review is to highlight gamete genome organization, differences in the chronology of gamete production between the male and female, the inherent DNA protective mechanisms in these reproductive cells, the aetiology of DNA damage in germ cells, and the remarkable DNA repair mechanisms, pre- and post-syngamy, that function to maintain genome integrity.
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Arias-Sosa LA. Understanding the Role of Telomere Dynamics in Normal and Dysfunctional Human Reproduction. Reprod Sci 2018; 26:6-17. [DOI: 10.1177/1933719118804409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Luis Alejandro Arias-Sosa
- Universidad Pedagógica y Tecnológica de Colombia, School of Biological Science, Tunja, Boyacá, Colombia
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Lopes AC, Oliveira PF, Sousa M. Shedding light into the relevance of telomeres in human reproduction and male factor infertility†. Biol Reprod 2018; 100:318-330. [DOI: 10.1093/biolre/ioy215] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 09/05/2018] [Accepted: 10/01/2018] [Indexed: 12/20/2022] Open
Affiliation(s)
- Ana Catarina Lopes
- Laboratory of Cell Biology, Department of Microscopy, and Multidisciplinary Unit for Biomedical Research (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
- Department of Life Sciences, Faculty of Sciences and Technology, New University of Lisbon (FCT-UNL), Campus Caparica, Caparica, Portugal
| | - Pedro F Oliveira
- Laboratory of Cell Biology, Department of Microscopy, and Multidisciplinary Unit for Biomedical Research (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
- Department of Genetics, Faculty of Medicine, University of Porto, Porto, Portugal
- i3S- Institute of Research and Innovation in Health, University of Porto, Porto, Portugal
| | - Mário Sousa
- Laboratory of Cell Biology, Department of Microscopy, and Multidisciplinary Unit for Biomedical Research (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
- Centre for Reproductive Genetics Professor Alberto Barros, Porto, Portugal
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Sefidgar Tehrani M, Amirian M, Jalali M, Attaranzadeh A, Fazel A, Ebrahimzadeh-Bideskan A. Role of the Zeta Method in Intracytoplasmic Sperm Injection Outcomes in High Sperm DNA Fragmentation in Oligoasthenozoospermic Men. Galen Med J 2018; 7:e1107. [PMID: 34466435 PMCID: PMC8343982 DOI: 10.22086/gmj.v0i0.1107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 04/16/2018] [Accepted: 04/19/2018] [Indexed: 11/30/2022] Open
Abstract
Background: New methods are needed to optimize intracytoplasmic sperm injection (ICSI) outcomes in oligoasthenozoospermic (OAS) men. We evaluated the level of DNA fragment index (DFI) in OAS men and its impact on ICSI outcomes. In addition, we used the zeta potential method for sperm selection to investigate the efficacy of this technique in improving ICSI outcomes. Materials and Methods: This cross-sectional study was performed on 95 couples. Sperm parameters and sperm DNA fragmentation (SDF) were measured. The couples were divided into the following 3 groups: group I (n=30) where SDF was between 15% and 30%, and routine sperm was selected on the basis of motility and morphology; group II (n=34) where SDF was more than 30%, and the routine sperm selection method was applied on the basis of motility and morphology; and group III (n=31) where SDF was more than 30%, and the sperm selection was performed on the basis of the zeta method. The fertilization rate, embryo development, embryo quality, and implantation rate were evaluated in these 3 groups. Results: The fertilization rate was significantly higher in group I compared with group II (P<0.05). The embryo development rate in group I was significantly higher than that in group II (P<0.001) and group III (P<0.05), and it was significantly lower in group II compared with group III (P<0.05). The embryo quality was higher in group III compared with group II (P<0.01). The implantation rate in group I was significantly higher than that in group II (P<0.05) and group III (P<0.05). Conclusions: The present study indicated that a higher level of SDF has an adverse effect on the ICSI outcome. Furthermore, the zeta potential technique can be a useful method for sperm selection in OAS men.
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Affiliation(s)
- Maryam Sefidgar Tehrani
- Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Malihe Amirian
- Department of Reproductive Medicine and Gynecology, Milad Infertility Center, Mashhad, Iran
| | - Mohsen Jalali
- Department of Reproductive Medicine and Gynecology, Armaghan Infertility Center, Mashhad, Iran
| | - Armin Attaranzadeh
- Department of Reproductive Medicine and Gynecology, Milad Infertility Center, Mashhad, Iran
| | - Alireza Fazel
- Microanatomy Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Alireza Ebrahimzadeh-Bideskan
- Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Microanatomy Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Boniewska-Bernacka E, Pańczyszyn A, Cybulska N. Telomeres as a molecular marker of male infertility. HUM FERTIL 2018; 22:78-87. [PMID: 29609488 DOI: 10.1080/14647273.2018.1456682] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In recent years, male infertility has become a growing social problem. Standard diagnostic procedures, based on assessing seminological parameters, are often insufficient to explain the causes of male infertility. Because of this, new markers with better clinical application are being sought. One of the promising markers seems to be an assessment of telomere length of sperm. Sperm telomeres, in contrast to somatic cells, are elongated as men age. The results of some studies suggest that telomere length may be relevant in the case of fertilization and normal embryo development. Literature reports indicate that there is a correlation between telomere length of sperm and abnormal sperm parameters. The measurement of telomere length using the method of quantitative PCR could become a new marker of spermatogenesis, which can be useful for evaluating male reproductive age.
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Affiliation(s)
- Ewa Boniewska-Bernacka
- a Department of Biotechnology and Molecular Biology , University of Opole , Opole , Poland
| | - Anna Pańczyszyn
- a Department of Biotechnology and Molecular Biology , University of Opole , Opole , Poland
| | - Natalia Cybulska
- b GMW - Center for Gynecological and Obstetric Diagnosis , Opole , Poland
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Fazaeli H, Davoodi F, Kalhor N, Tabatabaii Qomi R. The effect of supernatant product of adipose tissue derived mesenchymal stem cells and density gradient centrifugation preparation methods on pregnancy in intrauterine insemination cycles: An RCT. Int J Reprod Biomed 2018; 16:199-208. [PMID: 29766151 PMCID: PMC5944442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND One of the most important involved factors in pregnancy occurrence following intrauterine insemination (IUI) is semen sample preparation. Recently, supernatant product of adipose tissue derived mesenchymal stem cells (SPAS) method has been shown to improve semen parameters. OBJECTIVE To compare the effect of preparation methods in order to IUI, SPAS and density gradient centrifugation (DGC). MATERIALS AND METHODS This trial was done on 80 couples with male factor infertility who attend jihad daneshgahi infertility treatment center of Qom province, undergoing ovarian stimulation and IUI cycle. Various semen parameters including motility, count, DNA fragmentation and capacitation were evaluated before and after preparation. The effect of semen preparation methods and influence of various semen parameters on pregnancy occurrence were examined. RESULTS The overall clinical pregnancy rate was 17.5% per patient with no miscarriage. The pregnancy rate for DGC and SPAS were 5% (2 of 40) and 30% (12 of 40) respectively. Since there is no significant difference in improving motion parameters between two groups (except recovery of total number of motile spermatozoa), it seems that these parameters alone are not sufficient to predict IUI pregnancy outcome whereas in samples with >25 million motile spermatozoa in inseminate, there was a clear trend for a higher pregnancy rate for the sample processed using SPAS. CONCLUSION Considering SPAS as a new and effective method leading to provide a combination of various improved semen parameters, is expected in near future.
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Duarte C, Núñez V, Wong Y, Vivar C, Benites E, Rodriguez U, Vergara C, Ponce J. Impact of the Z potential technique on reducing the sperm DNA fragmentation index, fertilization rate and embryo development. JBRA Assist Reprod 2017; 21:351-355. [PMID: 29072049 PMCID: PMC5714604 DOI: 10.5935/1518-0557.20170055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background In assisted reproduction procedures, we need to develop and enhance new
protocols to optimize sperm selection. The aim of this study is to evaluate
the ability of the Z potential technique to select sperm with intact DNA in
non-normospermic patients and evaluate the impact of this selection on
embryonic development. Methods We analyzed a total of 174 human seminal samples with at least one altered
parameter. We measured basal, post density gradients, and post density
gradients + Z potential DNA fragmentation index. To evaluate the impact of
this technique on embryo development, 54 cases were selected. The embryo
development parameters evaluated were fertilization rate, cleavage rate, top
quality embryos at the third day and blastocysts rate. Results We found significant differences in the study groups when we compared the
sperm fragmentation index by adding the Z potential technique to density
gradient selection vs. density gradients alone. Furthermore, there was no
significant difference in the embryo development parameters between the low
sperm fragmentation index group vs. the moderate and high sperm
fragmentation index groups, when selecting sperms with this new
technique. Conclusions The Z potential technique is a very useful tool for sperm selection; it
significantly reduces the DNA fragmentation index and improves the
parameters of embryo development. This technique could be considered routine
for its simplicity and low cost.
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Affiliation(s)
- Carlos Duarte
- NIU VIDA Specialized Center for Assisted Reproduction, Lima, Peru
| | - Víctor Núñez
- NIU VIDA Specialized Center for Assisted Reproduction, Lima, Peru
| | - Yat Wong
- NIU VIDA Specialized Center for Assisted Reproduction, Lima, Peru.,Laboratory of Animal Biotechnology, Ricardo Palma University, Lima, Peru
| | - Carlos Vivar
- NIU VIDA Specialized Center for Assisted Reproduction, Lima, Peru
| | - Elder Benites
- NIU VIDA Specialized Center for Assisted Reproduction, Lima, Peru
| | - Urso Rodriguez
- NIU VIDA Specialized Center for Assisted Reproduction, Lima, Peru
| | - Carlos Vergara
- NIU VIDA Specialized Center for Assisted Reproduction, Lima, Peru
| | - Jorge Ponce
- NIU VIDA Specialized Center for Assisted Reproduction, Lima, Peru
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Kurjanowicz P, Moskovtsev S, Librach C. Genomic fragmentation and extrachromosomal telomeric repeats impact assessment of telomere length in human spermatozoa: quantitative experiments and systematic review. Hum Reprod 2017; 32:2170-2177. [PMID: 29040510 DOI: 10.1093/humrep/dex288] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Indexed: 11/02/2023] Open
Abstract
STUDY QUESTION Can differences in DNA isolation alter assessment of sperm telomere length (spTL) and do they account for conflicting results in the literature on spTL and male fertility? SUMMARY ANSWER DNA isolation methods preferentially include or exclude short, extrachromosomal (EC) telomere-specific sequences that alter spTL measurements, and are responsible for a proportion of the disparity observed between investigations. WHAT IS KNOWN ALREADY The relationship between spTL and male fertility has become an active area of research. The results across investigations, however, have been discordant, generating a need to critically evaluate the existing body of knowledge to guide future investigations. STUDY DESIGN, SIZE, DURATION Quantitative experiments determined the effect of DNA isolation on the integrity of sperm DNA and measures of spTL, while a systematic analysis of the current literature evaluated the effect of DNA isolation and study design on experimental outcomes. PARTICIPANTS/MATERIALS, SETTING, METHODS Two DNA isolation methods were compared: Genomic Tips which isolate 'High Molecular Weight' (HMW) DNA exclusively, and QIAamp® DNA Mini which isolates 'Total' genomic DNA irrespective of size. DNA quality was assessed via field inversion gel electrophoresis (FIGE) and spTL was measured via terminal restriction fragment analysis. In addition, major databases in medicine, health and the life sciences were subject to a targeted search, and results were independently screened according to defined exclusion/inclusion criterion. Findings from primary articles were analyzed for concordance and study designs were compared across six moderator variables (sample size, participant age, fertility status, semen fraction, telomere population and type of analysis). MAIN RESULTS AND THE ROLE OF CHANCE HMW DNA spTL was significantly longer than spTL measured from total DNA (P < 0.01), indicating that Total DNA contained short, EC telomeric repeats that shifted downstream assessment towards shorter spTL. HMW DNA spTL reflected the length of intact, chromosomal telomeres. Major findings on spTL showed the greatest concordance amongst studies that implemented HMW DNA isolation prior to spTL assessment. Studies that utilized Total DNA varied in concordance, but outcomes were similar if (i) a comparative analysis was applied or (ii) a sample size threshold of 81 was achieved for correlative analysis. LIMITATIONS, REASONS FOR CAUTION Chromosomal and EC telomeric DNA were distinguished based on outcomes of HMW DNA isolation and size. Further experiments are required to determine the nature and function of these two types of telomeric sequences. WIDER IMPLICATIONS OF THE FINDINGS This study reveals a dramatic impact of upstream DNA processing and study design on measurements of spTL, which accounts for conflicting results in the literature. Future assessments of spTL should incorporate independent detection of chromosomal and EC telomeric DNA and specific experimental planning. STUDY FUNDING/COMPETING INTERESTS This study was funded by CReATe Fertility Centre, Toronto, Ontario, Canada. The authors have declared no conflict of interest. REGISTRATION NUMBER N/A.
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Affiliation(s)
- P Kurjanowicz
- Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, Ontario, Canada M5S 1A8
- CReATe Fertility Centre, 790 Bay St., Suite 1100, Toronto, Ontario, Canada M5G 1N8
| | - S Moskovtsev
- CReATe Fertility Centre, 790 Bay St., Suite 1100, Toronto, Ontario, Canada M5G 1N8
- Department of Obstetrics and Gynaecology, University of Toronto, 123 Edward St. Suite 1200, Toronto, Ontario, Canada M5G 1E2
| | - C Librach
- Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, Ontario, Canada M5S 1A8
- CReATe Fertility Centre, 790 Bay St., Suite 1100, Toronto, Ontario, Canada M5G 1N8
- Department of Obstetrics and Gynaecology, University of Toronto, 123 Edward St. Suite 1200, Toronto, Ontario, Canada M5G 1E2
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