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Zhao G, Jiang X, Zheng Y, Bai H, Jiang Z, Cheng S, Li D. Outcomes comparison of testicular versus ejaculated sperm for intracytoplasmic sperm injection in infertile men with high DNA fragmentation: updated systematic review and meta-analysis. Transl Androl Urol 2023; 12:1785-1802. [PMID: 38196694 PMCID: PMC10772647 DOI: 10.21037/tau-23-415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 11/03/2023] [Indexed: 01/11/2024] Open
Abstract
Background The testicular sperm instead of ejaculated sperm for intracytoplasmic sperm injection (ICSI) in infertile men with high sperm DNA fragmentation (SDF) is a controversial topic. This updated systematic review and meta-analysis aims to evaluate whether couples with high level of SDF will benefit more from intracytoplasmic sperm injection with testicular sperm (Testi-ICSI) as compared to intracytoplasmic sperm injection with ejaculated sperm (Ejac-ICSI). Methods A systematic search was conducted according to PRISMA guidelines, using PubMed, Embase, Web of Science and the Cochrane Central Register of Controlled Trials (CENTRAL), encompassing studies from the earliest record until May 2022. We included studies analyzing comparative pregnancy outcomes of testicular versus ejaculated sperm for ICSI in infertile men with high DNA fragmentation. The risks of bias and certainty of evidence were assessed using the Risk Of Bias In Non-randomized Studies of Interventions (ROBINS-I) and the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) framework, respectively. Results Eleven studies were included. Meta-analysis showed that SDF levels revealed a significant difference association [odds ratio (OR) =-25.81; 95% confidence interval (CI): -34.82, -16.81; I2=94%; P<0.00001] between testicular and ejaculated sperm. Compared with Ejac-ICSI, a non-significant tendency was observed for fertilization rates (FRs) in the Testi-ICSI group (OR =0.87; 95% CI: 0.67, 1.12; I2=81%; P=0.28). However, there was significant difference pointing to better outcomes for Testi-ICSI in clinical pregnancy rates (CPRs) (OR =2.36; 95% CI: 1.71, 3.24; I2=0%; P<0.00001), live birth rates (LBRs) (OR =3.10; 95% CI: 2.13, 4.51; I2=4%; P<0.00001) and miscarriage rates (MRs) (OR =0.28; 95% CI: 0.13, 0.60; I2=0%; P=0.001). Conclusions Results of this updated meta-analysis reveal that SDF rates are lower in testicular sperm than in ejaculated sperm and that Testi-ICSI is correlated with better clinical outcomes, including higher CPRs, higher LBRs, and lower MRs in infertile males with high SDF levels. Nevertheless, with the overall low to moderate quality of the studies, further well-designed controlled studies are required.
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Affiliation(s)
- Guicheng Zhao
- Reproductive Andrology and Human Sperm Bank, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Xiaohui Jiang
- Reproductive Andrology and Human Sperm Bank, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yi Zheng
- Reproductive Andrology and Human Sperm Bank, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Hengzhou Bai
- Reproductive Andrology and Human Sperm Bank, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Zhou Jiang
- NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, China
| | - Shuting Cheng
- NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, China
| | - Dingming Li
- Reproductive Andrology and Human Sperm Bank, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
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Karavani G, Kattan MS, Lau S, Lo KC, Grober ED, Akroof B, Lajkosz K, Mullen B, Jarvi K. Intra-individual changes in sperm DNA fragmentation levels over short and long time periods. J Assist Reprod Genet 2023; 40:2267-2274. [PMID: 37495897 PMCID: PMC10440318 DOI: 10.1007/s10815-023-02891-z] [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: 04/26/2023] [Accepted: 07/12/2023] [Indexed: 07/28/2023] Open
Abstract
PURPOSE We aimed to examine the longitudinal, intra-personal changes in DNA fragmentation index (DFI) over time. METHODS Men who performed at least two DFI measurements (using sperm chromatin structure assay (SCSA) between 2003 and 2019 were included in this study and allocated to groups by time between DFI tests: < 1 year, 1-3 years, 3-5 years, and > 5 years. An analysis of DFI change over time according to age groups was additionally performed. Regression models were developed to predict changes in DFI with time. RESULTS Overall, 225 patients had two or more DFI measurements done at least a month apart (mean of 586.7± 710.0 days). The < 1 year (n = 124) and 1-3 years (n = 68) groups demonstrated decreased DFI levels, while an increase in DFI was shown in 3-5 years (n = 21) and more than 5 years (n = 12) groups - 7.1 ± 14.9%, - 4.5 ± 13.4%, + 3.2 ± 8.4%, and + 10.8 ± 18.0%, respectively, p < 0.001). This trend was similarly shown in age subgroups of under 40 years and 40-50 years at baseline DFI. Linear regression models showed that the factors predictive of DFI increase are baseline DFI and > 3 years between DFI tests. CONCLUSION This study shows that DFI, in men being investigated for infertility, initially decreases in the first 3 years of follow-up, and then increases over time with the highest increase occurring after 5 years interval (an average increase of 10.8%). Testing infertile men's DFI levels at first evaluation may contribute to personalized consult regarding future reproductive outcomes.
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Affiliation(s)
- Gilad Karavani
- Division of Urology, Department of Surgery, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada.
| | - Mohamed S Kattan
- Division of Urology, Department of Surgery, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
| | - Susan Lau
- Division of Urology, Department of Surgery, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
| | - Kirk C Lo
- Division of Urology, Department of Surgery, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
| | - Ethan D Grober
- Division of Urology, Department of Surgery, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
| | - Bader Akroof
- Division of Urology, Department of Surgery, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
| | - Katherine Lajkosz
- Division of Urology, Department of Surgery, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
- Department of biostatistics, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Brendan Mullen
- Department of Pathology, Mount Sinai Hospital and New Women's College Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Keith Jarvi
- Division of Urology, Department of Surgery, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
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Lahimer M, Montjean D, Cabry R, Capelle S, Lefranc E, Bach V, Ajina M, Ben Ali H, Khorsi-Cauet H, Benkhalifa M. Paternal Age Matters: Association with Sperm Criteria's- Spermatozoa DNA Integrity and Methylation Profile. J Clin Med 2023; 12:4928. [PMID: 37568329 PMCID: PMC10420110 DOI: 10.3390/jcm12154928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/24/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Advanced age has been reported to negatively affect sperm parameters and spermatozoa DNA integrity. A decline in sperm criteria was also associated with altered epigenetic marks such as DNA methylation with a potential downstream impact on in vitro fertilization success and clinical outcomes. The aim of the present retrospective study was to clarify the association between advanced paternal age (APA) and sperm parameters, DNA integrity and DNA methylation profile. A total of 671 patients consulting for infertility underwent sperm analysis, sperm DNA integrity assessment and methylation level measurement. The principal finding was that individuals over 40 years of age exhibit a significant increase in DNA fragmentation levels compared to the younger group (15% versus 9%, respectively, p = 0.04). However, there was no significant difference in DNA decondensation and sperm parameters in association with APA. In addition, a drop in the global methylation level was also found in men over 40 years (6% in the young group versus 2% in the old group, p = 0.03). As a conclusion, men over 40 years are at higher risk of elevated sperm DNA fragmentation and lower methylation level. Based on these observations, it is recommended that the assessment of sperm DNA fragmentation should be taken into consideration particularly after the age of 40. Our findings support the idea that paternal age is a crucial factor that should not be neglected during fertility evaluation and treatment since it is associated with epigenetics changes in sperm. Although the underlying mechanism remains to be clarified, we believe that environmental and professional exposure factors are likely involved in the process.
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Affiliation(s)
- Marwa Lahimer
- Reproductive Medicine, Reproductive Biology & Genetics, University Hospital and School of Medicine, Picardie University Jules Verne, CHU Sud, 80054 Amiens, France; (M.L.); (R.C.); (S.C.); (E.L.); (M.B.)
- PERITOX—Périnatalité et Risques Toxiques—UMR-I1, Picardie University Jules Verne, CHU Sud, 80025 Amiens, France;
- Exercise Physiology and Physiopathology: From Integrated to Molecular “Biology, Medicine and Health” (Code: LR19ES09), Sousse 4002, Tunisia
| | - Debbie Montjean
- Fertilys, Centres de Fertilité, Laval and Brossard, Québec, QC H7S 1Z5, Canada;
| | - Rosalie Cabry
- Reproductive Medicine, Reproductive Biology & Genetics, University Hospital and School of Medicine, Picardie University Jules Verne, CHU Sud, 80054 Amiens, France; (M.L.); (R.C.); (S.C.); (E.L.); (M.B.)
- PERITOX—Périnatalité et Risques Toxiques—UMR-I1, Picardie University Jules Verne, CHU Sud, 80025 Amiens, France;
| | - Severine Capelle
- Reproductive Medicine, Reproductive Biology & Genetics, University Hospital and School of Medicine, Picardie University Jules Verne, CHU Sud, 80054 Amiens, France; (M.L.); (R.C.); (S.C.); (E.L.); (M.B.)
| | - Elodie Lefranc
- Reproductive Medicine, Reproductive Biology & Genetics, University Hospital and School of Medicine, Picardie University Jules Verne, CHU Sud, 80054 Amiens, France; (M.L.); (R.C.); (S.C.); (E.L.); (M.B.)
| | - Véronique Bach
- PERITOX—Périnatalité et Risques Toxiques—UMR-I1, Picardie University Jules Verne, CHU Sud, 80025 Amiens, France;
| | - Mounir Ajina
- Unit of Reproductive Medicine, University Hospital Farhat Hached, Sousse 4000, Tunisia;
| | - Habib Ben Ali
- Faculty of Medicine of Sousse, University of Sousse, Sousse 4000, Tunisia;
| | - Hafida Khorsi-Cauet
- Reproductive Medicine, Reproductive Biology & Genetics, University Hospital and School of Medicine, Picardie University Jules Verne, CHU Sud, 80054 Amiens, France; (M.L.); (R.C.); (S.C.); (E.L.); (M.B.)
- PERITOX—Périnatalité et Risques Toxiques—UMR-I1, Picardie University Jules Verne, CHU Sud, 80025 Amiens, France;
| | - Moncef Benkhalifa
- Reproductive Medicine, Reproductive Biology & Genetics, University Hospital and School of Medicine, Picardie University Jules Verne, CHU Sud, 80054 Amiens, France; (M.L.); (R.C.); (S.C.); (E.L.); (M.B.)
- PERITOX—Périnatalité et Risques Toxiques—UMR-I1, Picardie University Jules Verne, CHU Sud, 80025 Amiens, France;
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Bibi R, Jahan S, Kafeel Qureshi S, Razak S, Afsar T, Almajwal A, Kafeel Qureshi M, Hammadeh ME, Amor H. Analysis of sperm chromatin packaging and reproductive biomarker to evaluate the consequence of advanced male age. Front Endocrinol (Lausanne) 2023; 14:1092603. [PMID: 37124745 PMCID: PMC10140363 DOI: 10.3389/fendo.2023.1092603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 03/23/2023] [Indexed: 05/02/2023] Open
Abstract
In this study, the semen parameters, sperm chromatin integrity, antioxidant enzyme levels, and reproductive hormone levels of subfertile male subjects from Pakistan were assessed in relation to their age. Data on the demographic characteristics of the 750 study participants, including their general health, body mass index (BMI), and reproductive status, were collected from subfertile men from Pakistan. Semen and blood were collected to determine standard semen parameters, sperm chromatin dispersion (Halosperm-SCD), sperm chromatin integrity using toluidine blue (TB) staining, sperm chromatin maturity using chromomycin A3 (CMA3+) staining, and reproductive hormone (FSH, LH, prolactin and testosterone levels). The patients were divided into three groups according to their age: Group 1 included male subjects aged 30 years or less (n = 90), Group 2 included male subjects between the ages of 31 and 40 years (n = 330), and Group 3 included male subjects over 40 years of age (n = 330). Conventional semen parameters, reactive oxygen species (ROS), superoxide dismutase (SOD), guaiacol peroxidase (GPX), catalase (CAT), and lipid peroxidation (MDA) did not statistically (p > 0.05) differ with increasing male age or between different age groups. When compared to younger men (<30 years), sperm SCD (23.2 ± 0.88%) was significantly (p = 0.01) lower as compared to male patients aged >40 years (26.6 ± 0.6%). The concentration of LH, FSH, and testosterone levels were comparable between the groups (p > 0.05), while a significant (p = 0.04) increase in sperm chromatin immaturity CMA3+ (30 ± 0.71%) was observed in the old age group (>40 years) compared to the <30-year group (26.6 ± 1.03%). A positive association was observed between advanced male age and sperm chromatin dispersion (SCD) (r = 0.124, p = 0.001) and decondensation (CMA3+) (r = 0.1, p = 0.009). Despite potential limitations, this study has been carried out with extensive information on the potential risk of male age on sperm integrity. The present study demonstrated the impact of male age on male reproductive health, as these patients had a higher percentage of sperm chromatin damage (SCD) in their semen. Sperm DNA damage assessment will help in the evaluation and diagnosis of the underlying cause of poor fertility and can help clinicians in selecting the right treatment options. Male age is one of the factors that have an impact on the decline in male fertility. As a result, it is preferable for patients receiving assisted reproductive technology to be younger.
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Affiliation(s)
- Riffat Bibi
- Department of Animal Sciences, Faculty of Biological Sciences, Quaid-i-Azam University Islamabad, Islamabad, Pakistan
- *Correspondence: Riffat Bibi, ; Suhail Razak,
| | - Sarwat Jahan
- Department of Animal Sciences, Faculty of Biological Sciences, Quaid-i-Azam University Islamabad, Islamabad, Pakistan
| | - Salma Kafeel Qureshi
- Department of Reproductive Health Sciences, Salma and Kafeel Medical Centre, Islamabad, Pakistan
| | - Suhail Razak
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
- *Correspondence: Riffat Bibi, ; Suhail Razak,
| | - Tayyaba Afsar
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Ali Almajwal
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Mashal Kafeel Qureshi
- Department of Reproductive Health Sciences, Salma and Kafeel Medical Centre, Islamabad, Pakistan
| | - Mohammad Eid Hammadeh
- Department of Obstetrics, Gynecology and Reproductive Medicine, Saarland University Clinic, Homburg, Germany
| | - Houda Amor
- Department of Obstetrics, Gynecology and Reproductive Medicine, Saarland University Clinic, Homburg, Germany
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Dong S, Chen C, Zhang J, Gao Y, Zeng X, Zhang X. Testicular aging, male fertility and beyond. Front Endocrinol (Lausanne) 2022; 13:1012119. [PMID: 36313743 PMCID: PMC9606211 DOI: 10.3389/fendo.2022.1012119] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/26/2022] [Indexed: 11/15/2022] Open
Abstract
Normal spermatogenesis and sperm function are crucial for male fertility. The effects of healthy testicular aging and testicular premature aging on spermatogenesis, sperm function, and the spermatogenesis microenvironment cannot be ignored. Compared with younger men, the testis of older men tends to have disturbed spermatogenic processes, sperm abnormalities, sperm dysfunction, and impaired Sertoli and Leydig cells, which ultimately results in male infertility. Various exogenous and endogenous factors also contribute to pathological testicular premature aging, such as adverse environmental stressors and gene mutations. Mechanistically, Y-chromosomal microdeletions, increase in telomere length and oxidative stress, accumulation of DNA damage with decreased repair ability, alterations in epigenetic modifications, miRNA and lncRNA expression abnormalities, have been associated with impaired male fertility due to aging. In recent years, the key molecules and signaling pathways that regulate testicular aging and premature aging have been identified, thereby providing new strategies for diagnosis and treatment. This review provides a comprehensive overview of the underlying mechanisms of aging on spermatogenesis. Furthermore, potential rescue measures for reproductive aging have been discussed. Finally, the inadequacy of testicular aging research and future directions for research have been envisaged to aid in the diagnosis and treatment of testicular aging and premature aging.
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Affiliation(s)
- Shijue Dong
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Chen Chen
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Jiali Zhang
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Yuan Gao
- Laboratory Animal Center, Nantong University, Nantong, China
| | - Xuhui Zeng
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Xiaoning Zhang
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
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