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Verón GL, Manjon AA, Bello R, Catalano D, Arévalo L, Santiago J, Vazquez-Levin MH. A 2-step remote TUNEL approach for sperm DNA fragmentation assessment. Analysis in donors and patients. Eur J Obstet Gynecol Reprod Biol 2024; 299:231-239. [PMID: 38905966 DOI: 10.1016/j.ejogrb.2024.06.018] [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: 01/26/2024] [Revised: 05/06/2024] [Accepted: 06/08/2024] [Indexed: 06/23/2024]
Abstract
OBJECTIVES Infertility is a disease of the male or female reproductive systems. Male reproductive workup is based on routine semen analysis, although of limited value. The 2021 WHO Manual incorporated Sperm DNA Fragmentation (SDF) assessment, and highlighted the need for individual laboratories to define suitable thresholds. This study aimed to present an alternative to address this issue, determine an SDF cut-off value with fertile donors, and characterize SDF in a patient cohort and their relationship with semen parameters. STUDY DESIGN A service unit was established to remotely perform TUNEL assay in a 2 step-process. Semen samples were received at andrology laboratories, subjected to routine semen analysis (WHO, 2010), partially processed and transported to the service unit for SDF evaluation. Using this setting, studies were done in fertile donors (n = 15) to define the cut-off value, and in men undergoing infertility workup (n = 318). RESULTS A cut-off value of 9.17 % was determined with the fertile donor cohort. With this cut-off, a 64.46 % abnormal SDF incidence was determined in the patient cohort. SDF negatively correlated with sperm number, vitality and motility, and positively with abnormal morphology and male age (P < 0.05). TUNEL-positive cases depicted lower sperm quality and higher male age (P < 0.05). A similar abnormal SDF incidence was determined among patients with semen abnormalities. Asthenozoospermic and ≥40 years patient samples depicted higher (P < 0.05) SDF than those of the general population. SDF incidence was also high in normozoospermic patients. CONCLUSIONS Using a 2-step remote approach with a standardized procedure and an SDF cut-off value established with fertile donors, high SDF incidence in semen samples depicting normal and abnormal quality were identified in men consulting for infertility, highlighting the relevance of its evaluation as part of the male fertility workup.
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Affiliation(s)
- Gustavo Luis Verón
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Ania Antonella Manjon
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Ricardo Bello
- Universidad de Tres de Febrero. Sáenz Peña, Buenos Aires, Argentina.
| | - Débora Catalano
- Centro de Diagnóstico Enrique Rossi (CDRossi), Buenos Aires, Argentina.
| | | | | | - Mónica Hebe Vazquez-Levin
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
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Melo P, Dhillon-Smith R, Islam MA, Devall A, Coomarasamy A. Genetic causes of sporadic and recurrent miscarriage. Fertil Steril 2023; 120:940-944. [PMID: 37648143 DOI: 10.1016/j.fertnstert.2023.08.952] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 08/23/2023] [Indexed: 09/01/2023]
Abstract
Approximately 80% of miscarriages happen within the first 12 weeks of gestation. More than half of early losses result from genetic defects, usually presenting as abnormal chromosome numbers or gene rearrangements in the embryo. However, the impact of genetics on pregnancy loss goes well beyond embryonic aneuploidy. For example, the use of big data has recently led to the discovery of specific gene mutations that may be implicated in sporadic and recurrent miscarriages. Further, emerging data suggest that genetic factors play a role in conditions for which there is a causative association with recurrent pregnancy loss. Here, we summarize the evidence on the genetics of miscarriage and provide an overview of the diagnosis and prevention of genetic causes associated with sporadic and recurrent pregnancy loss.
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Affiliation(s)
- Pedro Melo
- Nuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, United Kingdom.
| | - Rima Dhillon-Smith
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, United Kingdom
| | - Md Asiful Islam
- WHO Collaborating Centre for Global Women's Health, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, United Kingdom
| | - Adam Devall
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, United Kingdom; WHO Collaborating Centre for Global Women's Health, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, United Kingdom
| | - Arri Coomarasamy
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, United Kingdom; WHO Collaborating Centre for Global Women's Health, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, United Kingdom
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3
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Faix A, Methorst C, Hupertan V, Huyghe E. [Male contraception]. Prog Urol 2023; 33:718-732. [PMID: 38012914 DOI: 10.1016/j.purol.2023.09.004] [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: 08/23/2023] [Accepted: 09/04/2023] [Indexed: 11/29/2023]
Abstract
CONTEXT Contraception is a major global health issue, which is still dominated by female contraception. Developments in male contraception could help redistribute the contraceptive burden. METHODS A literature search was carried out to review the existing options and the criteria for optimal contraception, to establish the principles of a male pre-contraception consultation, and to review the various research avenues with their advantages and disadvantages. RESULTS The new male contraception options are detailed, whether hormonal (androgen therapy, combination of progestins and testosterone) or non-hormonal, particularly thermal, with current results and avenues for improvement. Condom use and vasectomy remain the only 2 validated options. The recent development of minimally invasive vasectomy without the need for a scalpel and of occlusion techniques has simplified the procedure, minimised the risk of complications (pain, haematomas, post-vasectomy pain syndrome) and improved efficacy. The issues of regret and the possibility of repermeabilisation are also raised. CONCLUSION The question of male contraception will become increasingly important in consultations with urologists. The urologist will have to inform the patient, as required by law, before the vasectomy is performed, and provide the best possible advice on the technique, which will often be minimally invasive without the need for a scalpel. New reversible options should also broaden the range of options available on a routine basis, with a view to gradually moving towards contraceptive equity.
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Affiliation(s)
- A Faix
- Clinique Saint-Roch, 560, avenue du colonel Pavelet dit Villars, 34000 Montpellier, France
| | - C Methorst
- Service de médecine de la reproduction, hôpital des 4 villes, Saint-Cloud, France
| | - V Hupertan
- « Urologie Paris Opéra », cabinet médical, 82, boulevard de Courcelles, 75017 Paris, France
| | - E Huyghe
- Département d'urologie, CHU de Toulouse, hôpital de Rangueil, Toulouse, France; Service de médecine de la reproduction, CHU de Toulouse, hôpital Paule-de-Viguier, Toulouse, France; Inserm 1203, UMR DEFE, université de Toulouse, université de Montpellier, Montpellier, France.
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4
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Shcherbitskaia AD, Komarova EM, Milyutina YP, Sagurova YM, Ishchuk MA, Mikhel AV, Ob’edkova KV, Lesik EA, Gzgzyan AM, Tapilskaya NI, Bespalova ON, Kogan IY. Age-Related COVID-19 Influence on Male Fertility. Int J Mol Sci 2023; 24:15742. [PMID: 37958725 PMCID: PMC10649310 DOI: 10.3390/ijms242115742] [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: 10/03/2023] [Revised: 10/29/2023] [Accepted: 10/29/2023] [Indexed: 11/15/2023] Open
Abstract
The impact of coronavirus on the reproductive health of men attracts the special attention of many researchers. While studies suggest changes in sperm parameters and the possibility of testicular inflammation, further studies are needed to elucidate any potential age-related changes in these findings, which is the purpose of the present study. The semen quality parameters, cytokine concentration, and markers of the pro- and antioxidant system were assessed in 60 men five to seven months after the coronavirus infection and in 77 controls (without a history of coronavirus infection). Additionally, participants were divided into two age groups: less than 35 years and 35 years or older. Notably increased round cell count in ejaculate and reduced sperm hyaluronan binding ability were observed among post-infection patients younger than 35 years. In the same group, a decline in seminal plasma zinc levels and nitrotyrosine in the cell fraction was found. In men over 35 years of age, Coronavirus Disease 2019 (COVID-19) led to increased sperm DNA fragmentation, a decrease in the total antioxidant capacity, and an elevation in the levels of interleukin-1β and interleukin-10. The concentration of interleukin-1β decreased over time following recovery in all affected patients. The data obtained suggest the potential adverse impact of the coronavirus infection on male reproductive health; however, these effects appear to be age-dependent.
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Affiliation(s)
- Anastasiia D. Shcherbitskaia
- D.O. Ott Research Institute of Obstetrics, Gynecology, and Reproductive Medicine, 199034 St. Petersburg, Russia; (E.M.K.); (Y.P.M.); (Y.M.S.); (M.A.I.); (A.V.M.); (K.V.O.); (E.A.L.); (A.M.G.); (N.I.T.); (O.N.B.); (I.Y.K.)
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5
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Zhou Q, Liu A, Ji H, Ji J, Sun J, Ling Z, Li G, Ling X, Xu L, Chen X. Expression profiles of circular RNAs in spermatozoa from aging men. Mol Biol Rep 2023; 50:8081-8088. [PMID: 37540460 DOI: 10.1007/s11033-023-08705-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] [Received: 03/22/2023] [Accepted: 07/20/2023] [Indexed: 08/05/2023]
Abstract
BACKGROUND Advanced paternal age (APA) is associated with decreased fertility, but the mechanism underlying APA remains unknown. CircRNAs have been reported to be ideal candidate biomarkers for diagnostic and therapeutic applications in many diseases and are also involved in spermatogenesis. Hence, we aimed to assess the circRNA expression profile of spermatozoa from aging men. METHODS AND RESULTS We recruited 6 subjects, including 3 in the younger group (men age < 40) and 3 in the APA group (men age ≥ 40). RNA sequencing was exploited to identify the expression profiles of circRNAs between the two groups. The expression levels of circRNAs were validated using real-time quantitative polymerase chain reaction (RT-qPCR). Kyoto Encyclopedia of Genes and Genomes biological pathway analysis and Gene Ontology analysis were performed to evaluate the functions of differentially expressed circRNAs (DE-circRNAs) between the two groups. In total, 18,787 circRNAs were sequenced in the spermatozoa of two groups. Our analysis revealed that there were 1056 downregulated circRNAs and 1228 upregulated circRNAs between the two groups, and KEGG analysis showed they were mainly involved in pathways including the DNA repair signaling pathway, meiotic recombination signaling pathway, and PI3K/AKT signaling pathway. CONCLUSIONS In conclusion, our study suggested that circRNAs play a vital role in spermatozoa from aging men and provided a fresh perspective on the specific regulatory mechanism of spermatozoa from aging men.
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Affiliation(s)
- Qiao Zhou
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, 210004, China
| | - Anming Liu
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, 210004, China
| | - Hui Ji
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, 210004, China
| | - Juan Ji
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, 210004, China
| | - Jingwen Sun
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, 210004, China
| | - Zhonghui Ling
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, 210004, China
| | - Guangyao Li
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, 210004, China
| | - Xiufeng Ling
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, 210004, China
| | - Lu Xu
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, 210004, China.
| | - Xiaoning Chen
- Department of Reproductive Medicine, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, 210004, China.
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Donatti LM, Martello CL, Andrade GM, Oliveira NP, Frantz N. Advanced Paternal Age Affects the Sperm DNA Fragmentation Index and May Lead to Lower Good-quality Blastocysts. Reprod Sci 2023:10.1007/s43032-023-01209-9. [PMID: 36897559 DOI: 10.1007/s43032-023-01209-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 03/01/2023] [Indexed: 03/11/2023]
Abstract
Several studies show reductions in some seminal parameters in aged men and describe them as a consequence of many age-dependent changes in male organisms. This study aims to evaluate the impact of age on seminal parameters, particularly the DNA fragmentation index (DFI), and outcomes after in vitro fertilization (IVF) cycles. This is a retrospective study that includes 367 patients who underwent sperm chromatin structure assay testing between 2016 and 2021. The participants were split into three groups according to age: < 35 years (younger group, n = 63), 35-45 years (intermediate group, n = 227), and ≥ 45 years (older group, n = 77). The mean DFI (%) was compared. Among all patients, 255 received IVF cycles after DFI evaluation. For these patients, the sperm concentration, motility, and volume, as well as the fertilization rate, mean oocyte age, and good-quality blastocyst formation rate, were analyzed. One-way ANOVA was applied. The older group showed a significantly higher sperm than did the younger group (28.6% vs. 20.8% p = 0.0135). Despite not presenting a significant difference, the DFI level tends to be inversely related to good-quality blastocyst formation since the oocyte age was similar between the groups (32.0 v.s 33.6 vs. 32.3 years, respectively, p = 0.1183). Among aged men, the sperm DFI level is increased but other seminal parameters are not modified. Considering that men with a high sperm DFI can present some degree of infertility due to high sperm chromatin damage, male age should also be considered a limiting factor of IVF.
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Affiliation(s)
- Luiza M Donatti
- Nilo Frantz Reproductive Medicine, Porto Alegre, Rio Grande Do Sul, Brazil.
| | | | | | - Norma P Oliveira
- Nilo Frantz Reproductive Medicine, Porto Alegre, Rio Grande Do Sul, Brazil
| | - Nilo Frantz
- Nilo Frantz Reproductive Medicine, Porto Alegre, Rio Grande Do Sul, Brazil
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7
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Lu XM, Liu YB, Zhang DD, Cao X, Zhang TC, Liu M, Shi HJ, Dong X, Liu SY. Effect of advanced paternal age on reproductive outcomes in IVF cycles of non-male-factor infertility: a retrospective cohort study. Asian J Androl 2023; 25:245-251. [PMID: 35775508 PMCID: PMC10069682 DOI: 10.4103/aja202234] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Advanced paternal age has been overlooked, and its effect on fertility remains controversial. Previous studies have focused mainly on intracytoplasmic sperm injection (ICSI) cycles in men with oligozoospermia. However, few studies have reported on men with semen parameters within reference ranges. Therefore, we conducted a retrospective cohort study analyzing the reproductive outcomes of couples with non-male-factor infertility undergoing in vitro fertilization (IVF) cycles. In total, 381 cycles included were subgrouped according to paternal age (<35-year-old, 35-39-year-old, or ≥40-year-old), and maternal age was limited to under 35 years. Data on embryo quality and clinical outcomes were analyzed. The results showed that fertilization and high-quality embryo rates were not significantly different (all P > 0.05). The pregnancy rate was not significantly different in the 35-39-year-old group (42.0%; P > 0.05), but was significantly lower in the ≥40-year-old group (26.1%; P < 0.05) than that in the <35-year-old group (40.3%). Similarly, the implantation rate significantly decreased in the ≥40-year-old group (18.8%) compared with that in the <35-year-old group (31.1%) and 35-39-year-old group (30.0%) (both P < 0.05). The live birth rate (30.6%, 21.7%, and 19.6%) was not significantly different across the paternal age subgroups (<35-year-old, 35-39-year-old, and ≥40-year-old, respectively; all P > 0.05), but showed a declining trend. The miscarriage rate significantly increased in the 35-39-year-old group (44.8%) compared with that in the <35-year-old group (21.0%; P < 0.05). No abnormality in newborn birth weight was found. The results indicated that paternal age over 40 years is a key risk factor that influences the assisted reproductive technology success rate even with good semen parameters, although it has no impact on embryo development.
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Affiliation(s)
- Xin-Mei Lu
- Reproductive Medicine Center, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032, China.,NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Pharmacy School, Fudan University, No. 2140 Xietu Road, Shanghai 200032, China
| | - Yu-Bing Liu
- Center for Reproductive Medicine, Tenth People's Hospital of Tongji University, 301 Middle Yanchang Road, Shanghai 200072, China
| | - Dou-Dou Zhang
- Reproductive Medicine Center, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032, China
| | - Xiang Cao
- Reproductive Medicine Center, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032, China
| | - Tian-Cheng Zhang
- NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Pharmacy School, Fudan University, No. 2140 Xietu Road, Shanghai 200032, China
| | - Miao Liu
- Reproductive Medicine Center, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032, China
| | - Hui-Juan Shi
- NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Pharmacy School, Fudan University, No. 2140 Xietu Road, Shanghai 200032, China
| | - Xi Dong
- Reproductive Medicine Center, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032, China
| | - Su-Ying Liu
- Reproductive Medicine Center, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai 200032, China
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Hupertan V, Graziana JP, Schoentgen N, Boulenger De Hauteclocque A, Chaumel M, Ferretti L, Methorst C, Huyghe E. [Recommendations of the Committee of Andrology and Sexual Medicine of the AFU concerning the management of Vasectomy]. Prog Urol 2023; 33:223-236. [PMID: 36841700 DOI: 10.1016/j.purol.2022.12.014] [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: 10/16/2022] [Accepted: 12/22/2022] [Indexed: 02/27/2023]
Abstract
OBJECTIVES To answer the main clinical questions asked by practitioners and men consulting for a vasectomy request. METHOD The CPR method was used. The clinical questions were formulated according to the PICO methodology. A Pubmed literature search for the period 1984-2021 identified 508 references, of which 79 were selected and analyzed with the GRADE grid. RECOMMENDATIONS Vasectomy is a permanent, potentially reversible contraception. It is a safe procedure. A second vasectomy is necessary in only 1 % of cases. Surgical complications (hematoma, infection, pain, etc.) are rare. The frequency of prolonged scrotal pain after vasectomy is about 5 %, and less than 2 % describe a negative impact of this pain on their quality of life. Vasectomy does not have negative consequences on sexuality. The only contraindication to vasectomy is the minor patient. Patients at increased risk of remorse are single, divorced or separated men under the age of 30. Sperm storage may be particularly appropriate for them. Whatever the reason, the law allows the surgeon to refuse to perform the vasectomy. He must inform the patient of this at the first consultation. The choice of the type of anesthesia is left to the discretion of the surgeon and the patient. It must be decided during the preoperative consultation. Local anesthesia should be considered first. General anesthesia should be particularly considered in cases of anxiety or intense sensitivity of the patient to palpation of the vas deferens, difficulty palpating the vas deferens, or a history of scrotal surgery that would make the procedure more complex. Concerning the vasectomy technique, 2 points seem to improve the efficiency of the vasectomy: coagulation of the deferential mucosa and interposition of fascia. Leaving the proximal end of the vas deferens free seems to reduce the risk of post-vasectomy syndrome without increasing the risk of failure or complications. No-scalpel vasectomy is associated with a lower risk of postoperative complications than conventional vasectomy. Regarding follow-up, it is recommended to perform a spermogram at 3 months post-vasectomy and after 30 ejaculations. If there are still a few non-motile spermatozoa at 3 months, it is recommended that a check-up be performed at 6 months post-vasectomy. In case of motile spermatozoa or more than 100,000 immobile spermatozoa/mL at 6 months (defining failure), a new vasectomy should be considered. Contraception must be maintained until the effectiveness of the vasectomy is confirmed.
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Affiliation(s)
- V Hupertan
- Cabinet médical Paris Batignolles, Paris, France
| | - J P Graziana
- Clinique mutualiste de la porte de l'Orient, Lorient, France
| | - N Schoentgen
- Hôpital Bichat-Claude-Bernard, 46, rue Henri-Huchard, Paris, France
| | | | - M Chaumel
- Service d'urologie, CHU de Tours, Tours, France
| | - L Ferretti
- Maison de santé pluridisciplinaire Bordeaux Bagatelle, Talence, France
| | - C Methorst
- Service d'urologie, CH des quatre villes, Saint-Cloud, France
| | - E Huyghe
- Département d'urologie, transplantation rénale et andrologie, CHU de Toulouse, site de Rangueil, Toulouse, France; Service de médecine de la reproduction, CHU de Toulouse, site de l'hôpital Paule-de-Viguier, 31059 Toulouse, France; UMR DEFE Inserm 1203, université de Toulouse 3, université de Montpellier, Toulouse, France.
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9
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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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10
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Jimbo M, Kunisaki J, Ghaed M, Yu V, Flores HA, Hotaling JM. Fertility in the aging male: a systematic review. Fertil Steril 2022; 118:1022-1034. [PMID: 36509505 PMCID: PMC10914128 DOI: 10.1016/j.fertnstert.2022.10.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/25/2022] [Accepted: 10/27/2022] [Indexed: 12/14/2022]
Abstract
The negative effect of advanced female age on fertility and offspring health is well understood. In comparison, much less is known about the implications of male age on fertility, with many studies showing conflicting results. Nevertheless, increasing evidence suggests that advanced paternal age has negative effects on sperm parameters, reproductive success, and offspring health. Herein, we summarize the current body of knowledge on this controversial topic, with the belief that this review will serve as a resource for the clinicians providing fertility counseling to couples with older male partners.
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Affiliation(s)
- Masaya Jimbo
- Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, Utah
| | - Jason Kunisaki
- Department of Human Genetics, University of Utah, Salt Lake City, Utah
| | - Mohammadali Ghaed
- Urology Department, Rasool Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Victor Yu
- University of Nevada Reno School of Medicine, Reno, Nevada
| | - Hunter A Flores
- Scott Department of Urology, Baylor College of Medicine, Houston, Texas
| | - James M Hotaling
- Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, Utah.
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11
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Punjabi U, Roelant E, Peeters K, Goovaerts I, Van Mulders H, De Neubourg D. Variability in Sperm DNA Fragmentation in Men with Mild/Unexplained Subfertility in a Prospective Longitudinal Intrauterine Insemination Trial. Life (Basel) 2022; 12:1826. [PMID: 36362981 PMCID: PMC9698842 DOI: 10.3390/life12111826] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/02/2022] [Accepted: 11/07/2022] [Indexed: 07/28/2023] Open
Abstract
The biological variability of semen and sperm DNA fragmentation (SDF) parameters in a longitudinal intrauterine insemination (IUI) trial over multiple IUI cycles was investigated. A TUNEL assay was used for SDF testing, both before and after density gradient centrifugation. A significant age effect was observed: while semen parameters deteriorated with advancing age, on average, higher SDF values were observed for older males. There was quite some variability observed for both semen and SDF variables. Using fertile threshold values, three patient categories were distinguished: those with a high SDF in all samples, those with low SDF in all samples and those who fluctuated between high and low during the whole IUI trial. Density gradient centrifugation increases SDF. However, the three patient categories react differently after semen processing. A large percentage of those with high SDF retain their high SDF even after gradient centrifugation. The SDF fluctuaters react with a high SDF after gradient centrifugation. The low SDF category, on the contrary, distributes itself evenly between the three categories after gradient centrifugation. SDF testing after semen processing might be indispensable for therapeutic purposes, probably influencing medical decision-making. In order to isolate fluctuaters, a second SDF testing might be advocated in certain cases. SDF after semen processing is indispensable for therapeutic management.
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Affiliation(s)
- Usha Punjabi
- Centre for Reproductive Medicine, Antwerp University Hospital, 2650 Edegem, Belgium
- Department of Reproductive Medicine, Antwerp Surgical Training, Anatomy and Research Centre (ASTARC), Faculty of Medicine and Health Sciences, University of Antwerp, 2000 Antwerpen, Belgium
| | - Ella Roelant
- Clinical Trial Centre (CTC), CRC Antwerp, Antwerp University Hospital, University of Antwerp, Drie Eikenstraat 655, 2650 Edegem, Belgium
| | - Kris Peeters
- Centre for Reproductive Medicine, Antwerp University Hospital, 2650 Edegem, Belgium
- Department of Reproductive Medicine, Antwerp Surgical Training, Anatomy and Research Centre (ASTARC), Faculty of Medicine and Health Sciences, University of Antwerp, 2000 Antwerpen, Belgium
| | - Ilse Goovaerts
- Centre for Reproductive Medicine, Antwerp University Hospital, 2650 Edegem, Belgium
- Department of Reproductive Medicine, Antwerp Surgical Training, Anatomy and Research Centre (ASTARC), Faculty of Medicine and Health Sciences, University of Antwerp, 2000 Antwerpen, Belgium
| | - Helga Van Mulders
- Centre for Reproductive Medicine, Antwerp University Hospital, 2650 Edegem, Belgium
| | - Diane De Neubourg
- Centre for Reproductive Medicine, Antwerp University Hospital, 2650 Edegem, Belgium
- Department of Reproductive Medicine, Antwerp Surgical Training, Anatomy and Research Centre (ASTARC), Faculty of Medicine and Health Sciences, University of Antwerp, 2000 Antwerpen, Belgium
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12
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Kidera N, Ishikawa T, Kawamura T, Miyasaka N. Impact of paternal age on IVF and pregnancy outcomes with only normal sperm parameters. Taiwan J Obstet Gynecol 2022; 61:1015-1020. [DOI: 10.1016/j.tjog.2022.02.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2022] [Indexed: 11/23/2022] Open
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13
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Farkouh A, Salvio G, Kuroda S, Saleh R, Vogiatzi P, Agarwal A. Sperm DNA integrity and male infertility: a narrative review and guide for the reproductive physicians. Transl Androl Urol 2022; 11:1023-1044. [PMID: 35958895 PMCID: PMC9360512 DOI: 10.21037/tau-22-149] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 06/24/2022] [Indexed: 12/13/2022] Open
Abstract
Background and Objective Conventional semen analysis (SA) remains an essential tool in the initial male fertility evaluation and subsequent follow-up. However, it neither provides information about the functional status of spermatozoa nor addresses disorders such as idiopathic or unexplained infertility (UI). Recently, assessment of sperm DNA fragmentation (SDF) has been proposed as an extended sperm test that may help overcome these inherent limitations of basic SA. In this review, we aim to: (I) discuss the pathophysiological aspects of SDF, including natural repair mechanisms, causes, and impact on reproductive outcomes; (II) explain different assessment tools of SDF, and describe potential therapeutic options to manage infertile men with high SDF; and (III) analyse the strengths, weaknesses, opportunities and threats (SWOT) of current research on the topic. Methods This review was constructed from original studies, systematic reviews and meta-analyses that were published over the years up until August 2021, related to the various aspects of SDF. Key Content and Findings Different mechanisms lead to high SDF, including defective chromatin packaging, apoptosis, and seminal oxidative stress. The relevance of sperm DNA integrity to male fertility/infertility has been supported by the frequent observation of high levels of SDF in infertile men, and in association with risk factors for infertility. Additionally, high SDF levels have been inversely correlated with the outcomes of natural pregnancy and assisted reproduction. Terminal deoxynucleotidyl transferase dUTP nick end labelling, sperm chromatin structure assay, sperm chromatin dispersion, and Comet assay are four commonly used assays for measurement of SDF. Addressing lifestyle risks and underlying conditions, antioxidants, hormonal therapy, and advanced sperm selection techniques have all been proposed as potential therapeutic options to lower SDF. Conclusions The sum of literature provides evidence of detrimental effects of high SDF on both natural and assisted fertility outcomes. Standardization of the techniques used for assessment of SDF and their incorporation into the work up of infertile couples may have significant implications on the future management of a selected category of infertile men with high SDF.
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Affiliation(s)
- Ala'a Farkouh
- Global Andrology Forum, American Center for Reproductive Medicine, Moreland Hills, Ohio, USA
| | - Gianmaria Salvio
- Division of Endocrinology, Department of Clinical and Molecular Sciences (DISCLIMO), Polytechnic University of Marche, Ancona, Italy
| | | | - Ramadan Saleh
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Sohag University, Sohag, Egypt.,Ajyal IVF Center, Ajyal Hospital, Sohag, Egypt
| | - Paraskevi Vogiatzi
- Andromed Health & Reproduction, Fertility Diagnostics Laboratory, Athens, Greece
| | - Ashok Agarwal
- Global Andrology Forum, American Center for Reproductive Medicine, Moreland Hills, Ohio, USA
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14
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Age-Related Decline of Male Fertility: Mitochondrial Dysfunction and the Antioxidant Interventions. Pharmaceuticals (Basel) 2022; 15:ph15050519. [PMID: 35631346 PMCID: PMC9143644 DOI: 10.3390/ph15050519] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/08/2022] [Accepted: 04/18/2022] [Indexed: 12/13/2022] Open
Abstract
Mitochondria are structurally and functionally unique organelles in male gametes. Apparently, as the only organelles remaining in mature sperm, mitochondria not only produce adeno-sine triphosphate (ATP) through oxidative phosphorylation (OXPHOS) to support sperm mobility, but also play key roles in regulating reactive oxidation species (ROS) signaling, calcium homeostasis, steroid hormone biosynthesis, and apoptosis. Mitochondrial dysfunction is often associated with the aging process. Age-dependent alterations of the epididymis can cause alterations in sperm mitochondrial functioning. The resultant cellular defects in sperm have been implicated in male infertility. Among these, oxidative stress (OS) due to the overproduction of ROS in mitochondria may represent one of the major causes of these disorders. Excessive ROS can trigger DNA damage, disturb calcium homeostasis, impair OXPHOS, disrupt the integrity of the sperm lipid membrane, and induce apoptosis. Given these facts, scavenging ROS by antioxidants hold great potential in terms of finding promising therapeutic strategies to treat male infertility. Here, we summarize the progress made in understanding mitochondrial dysfunction, aging, and male infertility. The clinical potential of antioxidant interventions was also discussed.
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15
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Li X, Yao J, Hu J, Deng C, Xie Y, Wang Z. iTRAQ-based proteomics of testicular interstitial fluid during aging in mice. Theriogenology 2021; 175:44-53. [PMID: 34482126 DOI: 10.1016/j.theriogenology.2021.08.034] [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: 02/05/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 10/20/2022]
Abstract
Advancing age is associated with a decline in fertility and testicular function in males. The testicular interstitial fluid (TIF) bathing the seminiferous tubules and testicular interstitium is considered an important part of the testicular microenvironment. However, the TIF proteome in mice and whether it changes with age remain unclear. This study aimed to map the TIF proteome and identify differentially abundant proteins (DEPs) among young, middle-aged, and old mice using isobaric tags for relative and absolute quantification (iTRAQ) coupled with liquid chromatography-tandem mass spectrometry. A total of 1477 proteins were identified in murine TIF. The abundance of 706 proteins showed a linear change trend with age, of which 360 and 346 proteins increased and decreased, respectively. In addition, 45 age-related DEPs were identified (P < 0.05, with at least 1.2-fold up- or downregulation). Bioinformatic analyses revealed that these proteins were involved in "actin cytoskeleton organization," "intrinsic apoptotic signaling pathway," and "regulation of protein transport." Comparative analysis with relevant proteomes previously reported further revealed the characteristics of mouse TIF proteome. Moreover, two of the age-related DEPs (Fga and Qsox1) were also found to be age-related differentially expressed proteins in human blood plasma and senescence-related secretome of human peritubular myoid cells. Taken together, these findings may represent the foundation for a better understanding of the molecular function of TIF and testicular aging.
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Affiliation(s)
- Xiangping Li
- Department of Urology and Andrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - JiaHui Yao
- Department of Urology and Andrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Jiaying Hu
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - ChunHua Deng
- Department of Urology and Andrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Yun Xie
- Department of Urology and Andrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Zhu Wang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China.
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16
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Sabet S, Najafi MH, Tavalaee M, Sadeghi N, Nasr-Esfahani MH. Single-blind clinical trial: Sperm selection based on capacity to pass through cumulus oophorous column improves ICSI outcomes. Andrology 2021; 9:1560-1570. [PMID: 34019729 DOI: 10.1111/andr.13043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 04/22/2021] [Accepted: 05/18/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Sperm selection procedures for future strategies that aim to select normal spermatozoa with intact DNA to improve intracytoplasmic sperm injection (ICSI) outcomes are in early developing stage. OBJECTIVES The objective is to find out whether the sperm selection procedure based on the ability of spermatozoa to traverse the cumulus cells could improve clinical outcomes of ICSI technique in infertile couples with male factor etiology. MATERIALS AND METHODS For this single-blind clinical trial, mature metaphase II oocytes were retrieved from 150 couples with male factor infertility, male age lower than 45 years and female age under 38 years. These couples were divided into two groups. In control group (n = 75), spermatozoa processed by density gradient centrifugation (DGC) were used to inject the oocytes. In the study group (n = 75), the oocytes were divided into sibling groups. In one sibling group (DGC), the oocytes were inseminated with DGC-processed spermatozoa while in the other group (DGC-CC), they were inseminated with DGC-processed spermatozoa that passed cumulus oophorous column. RESULTS Mean fertilization and embryo quality were significantly higher in DGC-CC group compared to DGC and control group. In addition, mean of chemical pregnancy (52.27% vs. 34.14%; p = 0.05), clinical pregnancy based on sac (52.27% vs. 32.92%; p = 0.03), clinical pregnancy with heart beat (52.27% vs. 25.60%; p = 0.003) and ongoing pregnancy (43.18% vs. 21.95%; p = 0.02) rates were significantly higher in DGC-CC group compared to control group. CONCLUSION Sperm selection based on integrated systems such as DGC and ability to pass through cumulus oophorous column could improve clinical outcomes of ICSI in couples with male factor infertility.
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Affiliation(s)
- Sara Sabet
- ACECR Institute of Higher Education (Isfahan Branch), Isfahan, Iran.,Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | | | - Marziyeh Tavalaee
- Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Niloofar Sadeghi
- Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Mohammad H Nasr-Esfahani
- Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran.,Isfahan Fertility and Infertility Center, Isfahan, Iran
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17
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Abstract
Intracytoplasmic sperm injection (ICSI) is an important technique in male infertility treatment. Currently, sperm selection for ICSI in human assisted reproductive technology (ART) is subjective, based on a visual assessment by the operator. Therefore, it is desirable to develop methods that can objectively provide an accurate assessment of the shape and size of sperm heads that use low-magnification microscopy available in most standard fertility clinics. Recent studies have shown a correlation between sperm head size and shape and chromosomal abnormalities, and fertilization rate, and various attempts have been made to establish automated computer-based measurement of the sperm head itself. For example, a dictionary-learning technique and a deep-learning-based method have both been developed. Recently, an automatic algorithm was reported that detects sperm head malformations in real time for selection of the best sperm for ICSI. These data suggest that a real-time sperm selection system for use in ICSI is necessary. Moreover, these systems should incorporate inverted microscopes (×400-600 magnification) but not the fluorescence microscopy techniques often used for a dictionary-learning technique and a deep-learning-based method. These advances are expected to improve future success rates of ARTs. In this review, we summarize recent reports on the assessment of sperm head shape, size, and acrosome status in relation to fertility, and propose further improvements that can be made to the ARTs used in infertility treatments.
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18
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Gonzalez DC, Ory J, Blachman-Braun R, Nackeeran S, Best JC, Ramasamy R. Advanced Paternal Age and Sperm DNA Fragmentation: A Systematic Review. World J Mens Health 2021; 40:104-115. [PMID: 33987998 PMCID: PMC8761235 DOI: 10.5534/wjmh.200195] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/15/2021] [Accepted: 03/04/2021] [Indexed: 11/16/2022] Open
Abstract
Purpose Male ageing is often associated with defective sperm DNA remodeling mechanisms that result in poorly packaged chromatin and a decreased ability to repair DNA strand breaks. However, the impact of advanced paternal age on DNA fragmentation remains inconclusive. The aim of the present systematic review was to investigate the impact of advancing paternal age (APA) on DNA fragmentation. Materials and Methods We conducted a thorough search of listed publications in Scopus, PubMed, and EMBASE, in accordance with the PRISMA guidelines. Results We identified 3,120 articles, of which nineteen were selected for qualitative analysis, resulting in a sample of 40,668 men. Of the 19 articles evaluating the impact of APA on DFI% (DNA fragmentation Index) included, 4 were on Normozoospermic and subfertile men, 3 on normozoospermic, Oligoasthenoteratozoospermic and Teratozoospermic, 6 on fertile and infertile men, 4 on just infertile men, and 2 evaluated a general population. Seventeen of the ninrnteen studies demonstrated APA's effect and impact on DFI%. Conclusions Although there was no universal definition for APA, the present review suggests that older age is associated with increased DFI. In elderly men with normal semen parameters, further studies should be performed to assess the clinical implications of DFI, as a conventional semen analysis can often fail to detect an etiology for infertility.
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Affiliation(s)
- Daniel C Gonzalez
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA.
| | - Jesse Ory
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Ruben Blachman-Braun
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Sirpi Nackeeran
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Jordan C Best
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Ranjith Ramasamy
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
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19
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Mohammadzadeh M, Pourentezari M, Zare-Zardini H, Nabi A, Esmailabad SG, Khodadadian A, Talebi AR. The effects of sesame oil and different doses of estradiol on testicular structure, sperm parameters, and chromatin integrity in old mice. Clin Exp Reprod Med 2021; 48:34-42. [PMID: 33648043 PMCID: PMC7943348 DOI: 10.5653/cerm.2020.03524] [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: 01/14/2020] [Accepted: 04/25/2020] [Indexed: 01/04/2023] Open
Abstract
Objective Studies of the effects of estrogens on the male reproductive system have emphasized the role of these hormones in male fertility. Sesame oil has many phytoestrogenic compounds and may improve male fertility. This study investigated the effects of sesame oil and different concentrations of estrogen on sperm parameters and DNA integrity in male mice. Methods Twenty old NMRI (The Naval Medical Research Institute) male mice (40 weeks; weight, 30–35 g) were treated with sesame oil or different concentrations of estrogen (estradiol, 1 and 10 μL/kg/day) or received no treatment (controls). After 35 days, sperm parameters and DNA integrity were assessed and analyzed. Results Sperm count, progressive motility, and morphology were decreased in the group that received 10 μL/kg of estradiol. A remarkably lower percentage of DNA fragmentation and protamine deficiency were detected in the group that received 1 μL/kg of estradiol. In the groups that received sesame oil and 1 μL/kg of estradiol, the numbers of spermatogonia and Leydig cells were higher than in controls. The combination of sesame oil and 1 μL/kg of estradiol led to improved sperm parameters and chromatin and testicular structure. Conclusion Based on this study, consumption of sesame oil and a low concentration of estradiol may improve testicular function in older mice.
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Affiliation(s)
- Masoomeh Mohammadzadeh
- Department of Reproductive Biology, Yazd Reproductive Sciences Institute, Research and Clinical Center for Infertility, Yazd, Iran
| | - Majid Pourentezari
- Department of Biology and Anatomical Sciences, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hadi Zare-Zardini
- Department of Hematology and Oncology Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Sciences, Farhangian University, Isfahan, Iran.,Medical Nanotechnology and Tissue Engineering Research Center, Yazd Reproductive Sciences Institute, Yazd, Iran
| | - Ali Nabi
- Department of Reproductive Biology, Yazd Reproductive Sciences Institute, Research and Clinical Center for Infertility, Yazd, Iran
| | - Saeed Ghasemi Esmailabad
- Department of Reproductive Biology, Yazd Reproductive Sciences Institute, Research and Clinical Center for Infertility, Yazd, Iran
| | - Ali Khodadadian
- Department of Medical Genetics, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ali Reza Talebi
- Department of Reproductive Biology, Yazd Reproductive Sciences Institute, Research and Clinical Center for Infertility, Yazd, Iran
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20
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Gao J, Yuan R, Yang S, Wang Y, Huang Y, Yan L, Jiang H, Qiao J. Age-related changes in human conventional semen parameters and sperm chromatin structure assay-defined sperm DNA/chromatin integrity. Reprod Biomed Online 2021; 42:973-982. [PMID: 33785305 DOI: 10.1016/j.rbmo.2021.02.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 12/14/2022]
Abstract
RESEARCH QUESTION What are the correlations between male age, traditional semen parameters, sperm DNA fragmentation index (DFI) and high DNA stainability (HDS) in a sufficiently large sample size? DESIGN Retrospective cohort study of 18,441 semen samples, with data divided into seven age groups according to male age: ≤25, 26-30, 31-35, 36-40, 41-45, 46-50 and ≥51 years. RESULTS Age was negatively correlated with semen volume, total sperm count, motility and HDS, and positively correlated with sperm concentration and DFI (P < 0.001). After 35 years of age, semen volume and total sperm count began to decline. After 30 years of age, motility and HDS decreased consistently. Sperm concentration and DFI increased from 26-30 years of age. DFI was negatively correlated with sperm concentration, total sperm count, motility and normal morphology (P < 0.001) and positively correlated with semen volume and HDS (P < 0.001). HDS was negatively correlated with all parameters (P < 0.001) except semen volume (r = -0.013, P = 0.074) and DFI (r = 0.124, P < 0.001). Patients aged ≥40 years had higher DFI than those aged <40 years in the entire cohort, in the abnormal semen parameters cohort, and in the normal semen parameters cohort (OR 2.145, 2.042, 1.948, respectively, P < 0.001). The ≥40 years age group had a lower HDS than the <40 years age group in the entire cohort and abnormal semen parameters cohort (OR 0.719, 0.677, respectively, P < 0.001). CONCLUSIONS Ageing is a negative effector of sperm quantity and quality, and routine sperm parameters have weak but significant correlations with sperm DNA/chromatin integrity.
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Affiliation(s)
- Jiangman Gao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; Key Laboratory of Assisted Reproduction, Peking University, Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Peking University Third Hospital, Beijing 100191, China
| | - Renpei Yuan
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Siwei Yang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Yuanyuan Wang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; Key Laboratory of Assisted Reproduction, Peking University, Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Peking University Third Hospital, Beijing 100191, China
| | - Ying Huang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Liying Yan
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; Key Laboratory of Assisted Reproduction, Peking University, Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Peking University Third Hospital, Beijing 100191, China
| | - Hui Jiang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China.
| | - Jie Qiao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China; Key Laboratory of Assisted Reproduction, Peking University, Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Peking University Third Hospital, Beijing 100191, China.
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21
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Gill K, Jakubik-Uljasz J, Rosiak-Gill A, Grabowska M, Matuszewski M, Piasecka M. Male aging as a causative factor of detrimental changes in human conventional semen parameters and sperm DNA integrity. Aging Male 2020; 23:1321-1332. [PMID: 32425138 DOI: 10.1080/13685538.2020.1765330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
The effect of male aging on fertility potential is controversial and difficult to predict. The aim of our study was to determine the associations between age, basic semen parameters, and sperm DNA fragmentation (SDF). Comparison of four age-dependent groups (men ≤29 years, 30-35 years, 36-40 years, and >40 years) revealed a significant fall in the basic semen characteristics and sperm genomic integrity with age. Receiver operating characteristic (ROC) analysis confirmed that men >29 years had lower semen quality. In the group of men >29 years, the prevalence of men with abnormal semen parameters was higher, and these men had over a threefold higher odds ratio (OR) for abnormal semen parameters. Next, ROC analysis revealed that a threshold of 18% SDF was optimal for discriminating between men with normal and abnormal standard semen parameters. The prevalence of men with >18% SDF was higher in the group of men >29 years than in men ≤29 years. Older men had an almost twofold higher risk for >18% SDF than younger men. Our results suggest that age >29 years may be a causative factor of detrimental changes in semen quality, which may raise the risk for disorders of male fertility potential.
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Affiliation(s)
- Kamil Gill
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Joanna Jakubik-Uljasz
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Aleksandra Rosiak-Gill
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
- VitroLive Fertility Clinic in Szczecin, Szczecin, Poland
| | - Marta Grabowska
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | | | - Malgorzata Piasecka
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin, Poland
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22
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Agarwal A, Majzoub A, Baskaran S, Panner Selvam MK, Cho CL, Henkel R, Finelli R, Leisegang K, Sengupta P, Barbarosie C, Parekh N, Alves MG, Ko E, Arafa M, Tadros N, Ramasamy R, Kavoussi P, Ambar R, Kuchakulla M, Robert KA, Iovine C, Durairajanayagam D, Jindal S, Shah R. Sperm DNA Fragmentation: A New Guideline for Clinicians. World J Mens Health 2020; 38:412-471. [PMID: 32777871 PMCID: PMC7502318 DOI: 10.5534/wjmh.200128] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 07/13/2020] [Accepted: 07/13/2020] [Indexed: 12/13/2022] Open
Abstract
Sperm DNA integrity is crucial for fertilization and development of healthy offspring. The spermatozoon undergoes extensive molecular remodeling of its nucleus during later phases of spermatogenesis, which imparts compaction and protects the genetic content. Testicular (defective maturation and abortive apoptosis) and post-testicular (oxidative stress) mechanisms are implicated in the etiology of sperm DNA fragmentation (SDF), which affects both natural and assisted reproduction. Several clinical and environmental factors are known to negatively impact sperm DNA integrity. An increasing number of reports emphasizes the direct relationship between sperm DNA damage and male infertility. Currently, several assays are available to assess sperm DNA damage, however, routine assessment of SDF in clinical practice is not recommended by professional organizations. This article provides an overview of SDF types, origin and comparative analysis of various SDF assays while primarily focusing on the clinical indications of SDF testing. Importantly, we report four clinical cases where SDF testing had played a significant role in improving fertility outcome. In light of these clinical case reports and recent scientific evidence, this review provides expert recommendations on SDF testing and examines the advantages and drawbacks of the clinical utility of SDF testing using Strength-Weaknesses-Opportunities-Threats (SWOT) analysis.
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Affiliation(s)
- Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.
| | - Ahmad Majzoub
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Department of Urology, Weill Cornell Medicine - Qatar, Doha, Qatar
| | - Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | | | - Chak Lam Cho
- Department of Surgery, Union Hospital, Hong Kong
- S. H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | - Ralf Henkel
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
- Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
| | - Renata Finelli
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Kristian Leisegang
- School of Natural Medicine, Faculty of Community and Health Sciences, University of the Western Cape, Bellville, South Africa
| | - Pallav Sengupta
- Department of Physiology, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom, Malaysia
| | - Catalina Barbarosie
- Department of Genetics, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Neel Parekh
- Department of Urology, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Marco G Alves
- Department of Microscopy, Laboratory of Cell Biology & Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Edmund Ko
- Department of Urology, Loma Linda University, Loma Linda, CA, USA
| | - Mohamed Arafa
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Andrology Department, Cairo University, Giza, Egypt
| | - Nicholas Tadros
- Division of Urology, Southern Illinois University School of Medicine, Springfield, IL, USA
| | | | - Parviz Kavoussi
- Austin Fertility & Reproductive Medicine/Westlake IVF, Austin, TX, USA
| | - Rafael Ambar
- Urology Department of Centro Universitario em Saude do ABC, Santo André, Brazil
| | | | - Kathy Amy Robert
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Concetta Iovine
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | | | - Sunil Jindal
- Department of Andrology and Reproductive Medicine, Jindal Hospital, Meerut, India
| | - Rupin Shah
- Department of Urology, Lilavati Hospital and Research Centre, Mumbai, India
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23
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Mohammadi Z, Tavalaee M, Gharagozloo P, Drevet JR, Nasr-Esfahani MH. Could high DNA stainability (HDS) be a valuable indicator of sperm nuclear integrity? Basic Clin Androl 2020; 30:12. [PMID: 32817794 PMCID: PMC7425160 DOI: 10.1186/s12610-020-00110-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 07/13/2020] [Indexed: 12/17/2022] Open
Abstract
Background The Sperm Chromatin Structure Assay (SCSA®), in addition to identifying the DNA Fragmentation Index (DFI) also identifies High DNA satiability (HDS), supposed to reflect the nuclear compaction of spermatozoa. However, data on what exactly this parameter reveals, its relevance and usefulness are contradictory. In order to shed light on this situation, spermatozoa of a cohort (N = 397) of infertile men were subjected to the SCSA®, TUNEL (terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate-biotin nick end labeling) and CMA3 (Chromomycin A3) tests. In a smaller subcohort (N = 100), aniline blue (AB) and toluidine blue (TB) staining were performed in addition. The objective of this study was thus to answer the question of whether HDS is a relevant and reliable parameter to be taken into account? Results HDS does not appear to be a reliable indicator of nuclear immaturity because it shows a weak correlation with the CMA3, AB and TB stains. The low correlation of HDS with sperm DNA fragmentation (TUNEL and SCSA®) and DNA condensation (CMA3, AB and TB) tests suggests that these two parameters could be decoupled. Unlike DFI and TUNEL, HDS has not been shown to correlate with classic clinical situations of male infertility (asthenozoospermia, teratozoospermia or astheno-teratozoospermia). Conclusion HDS correlates poorly with most tests that focus specifically on the level of maturity of the sperm nucleus. To our knowledge, this study is the first to compare SCSA®, TUNEL, AB, TB and CMA3 assays on identical samples. It shows the potency, consistency and limitations of each test and the care that must be taken in their interpretation.
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Affiliation(s)
- Z Mohammadi
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - M Tavalaee
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - P Gharagozloo
- CellOxess LLC, 830 Bear Tavern Road, Ewing, NJ 08628 USA
| | - J R Drevet
- GReD Institute, Faculty of Medicine, INSERM-CNRS-Université Clermont Auvergne, Clermont-Ferrand, France
| | - M H Nasr-Esfahani
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran.,Isfahan Fertility and Infertility Center, Isfahan, Iran
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24
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Evenson DP, Djira G, Kasperson K, Christianson J. Relationships between the age of 25,445 men attending infertility clinics and sperm chromatin structure assay (SCSA®) defined sperm DNA and chromatin integrity. Fertil Steril 2020; 114:311-320. [DOI: 10.1016/j.fertnstert.2020.03.028] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 03/13/2020] [Accepted: 03/17/2020] [Indexed: 01/04/2023]
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25
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Panner Selvam MK, Ambar RF, Agarwal A, Henkel R. Etiologies of sperm DNA damage and its impact on male infertility. Andrologia 2020; 53:e13706. [PMID: 32559347 DOI: 10.1111/and.13706] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 05/11/2020] [Accepted: 05/15/2020] [Indexed: 12/12/2022] Open
Abstract
Male factor is responsible for up to 50% of infertility cases in the world. Semen analysis is considered the cornerstone of laboratory evaluation of male infertility, but it has its own drawbacks and fails to predict the male fertility potential with high sensitivity and specificity. Different etiologies have been linked with male infertility, of which sperm DNA damage has gained significant attention with extensive research on sperm function tests. The associations between sperm DNA damage and a variety of disorders such as varicocele, obesity, cancer, radiation and lifestyle factors are explored in this review. Furthermore, we discuss the mechanisms of DNA damage as well as its impact in different scenarios of male infertility, associated with spontaneous and assisted reproduction. Finally, we review the clinical applicability of sperm DNA fragmentation testing in the management of male infertility.
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Affiliation(s)
| | - Rafael F Ambar
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Sexual and Reproductive Medicine - Department of Urology, Faculdade de Medicina do ABC, Santo André, Brazil
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
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26
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Barbăroșie C, Agarwal A, Henkel R. Diagnostic value of advanced semen analysis in evaluation of male infertility. Andrologia 2020; 53:e13625. [PMID: 32458468 DOI: 10.1111/and.13625] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 04/03/2020] [Accepted: 04/08/2020] [Indexed: 12/13/2022] Open
Abstract
Conventional semen analysis is the standard of care to initially evaluate the fertility status of a male patient. However, it has some limitations and among these are failure to correctly identify the aetiology underlying fertility problems, intra- and inter-observer variability and incomplete information about sperm function. Considering these drawbacks, advanced semen tests have been developed to assess male infertility, including sperm function tests, oxidative stress (OS) and sperm DNA fragmentation (SDF) tests. This review illustrates the commonly utilised sperm function techniques, along with the assays used to assess SDF and OS and their diagnostic value.
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Affiliation(s)
- Cătălina Barbăroșie
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Genetics, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
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27
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Setti AS, Braga DPAF, Iaconelli Junior A, Borges Junior E. Increasing paternal age and ejaculatory abstinence length negatively influence the intracytoplasmic sperm injection outcomes from egg‐sharing donation cycles. Andrology 2019; 8:594-601. [DOI: 10.1111/andr.12737] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/19/2019] [Accepted: 11/19/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Amanda S. Setti
- Fertility Medical Group São Paulo/SP Brazil
- Sapientiae Institute São Paulo/SP Brazil
| | | | | | - Edson Borges Junior
- Fertility Medical Group São Paulo/SP Brazil
- Sapientiae Institute São Paulo/SP Brazil
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28
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Guo L, Zhou H, Liu M, Li Q, Sun X. Male age is more critical to sperm DNA integrity than routine semen parameters in Chinese infertile males. Andrologia 2019; 52:e13449. [PMID: 31657059 DOI: 10.1111/and.13449] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/15/2019] [Accepted: 08/28/2019] [Indexed: 12/15/2022] Open
Affiliation(s)
- Li‐Yuan Guo
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes Key Laboratory for Major Obstetric Diseases of Guangdong Province The Third Affiliated Hospital of Guangzhou Medical University Guangzhou China
| | - Hua Zhou
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes Key Laboratory for Major Obstetric Diseases of Guangdong Province The Third Affiliated Hospital of Guangzhou Medical University Guangzhou China
| | - Min Liu
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes Key Laboratory for Major Obstetric Diseases of Guangdong Province The Third Affiliated Hospital of Guangzhou Medical University Guangzhou China
| | - Qing Li
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes Key Laboratory for Major Obstetric Diseases of Guangdong Province The Third Affiliated Hospital of Guangzhou Medical University Guangzhou China
| | - Xiao‐Fang Sun
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes Key Laboratory for Major Obstetric Diseases of Guangdong Province The Third Affiliated Hospital of Guangzhou Medical University Guangzhou China
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29
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Esteves SC. Interventions to Prevent Sperm DNA Damage Effects on Reproduction. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1166:119-148. [PMID: 31301050 DOI: 10.1007/978-3-030-21664-1_8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Excessive oxidation and antioxidant imbalance resulting from several conditions may cause sperm DNA damage, which, in turn, affect male fertility, both natural and assisted. Sperm DNA damage transferred to the embryo might also affect the health of offspring. Several conditions associated with excessive oxidative stress are modifiable by the use of specific treatments, lifestyle changes, and averting exposure to environmental/occupational toxicants. Here, we discuss the strategies to reduce sperm DNA damage with a focus on clinical and surgical interventions.
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Affiliation(s)
- Sandro C Esteves
- ANDROFERT, Andrology and Human Reproduction Clinic, Referral Center for Male Reproduction, Campinas, SP, Brazil. .,Department of Surgery (Division of Urology), University of Campinas (UNICAMP), Campinas, SP, Brazil. .,Faculty of Health, Aarhus University, Aarhus, Denmark.
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30
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Rosiak-Gill A, Gill K, Jakubik J, Fraczek M, Patorski L, Gaczarzewicz D, Kurzawa R, Kurpisz M, Piasecka M. Age-related changes in human sperm DNA integrity. Aging (Albany NY) 2019; 11:5399-5411. [PMID: 31412318 PMCID: PMC6710060 DOI: 10.18632/aging.102120] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 07/20/2019] [Indexed: 01/10/2023]
Abstract
Abnormal standard semen characteristics and reduced sperm chromatin maturity can appear with increasing male age. However, the influence of paternal age on semen parameters is still controversial. Therefore, this study was designed to estimate the influence of paternal age not only on conventional semen characteristics but also on sperm DNA integrity. This research was carried out on ejaculated sperm cells obtained from men (n = 1124) aged ≥40 y and <40 y. Our data revealed a decreased semen volume and an increased percentage of DFI (sperm DNA fragmentation index) in older men compared to younger men in the entire study cohort, in men with normozoospermia and in men with abnormal semen parameters. Moreover, there was a higher incidence of sperm DNA damage (>10% DFI, low fertility potential) in the groups of men aged ≥40 y than in the groups of men aged <40 y. Older men had over twice the odds ratio for high sperm DNA damage as younger men. Our findings suggest a detrimental effect of advanced paternal age on sperm chromatin integrity. The data show that the evaluation of sperm DNA has greater clinical utility than standard semen analysis in case of male fertility potential assessment.
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Affiliation(s)
- Aleksandra Rosiak-Gill
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin 71-210, Poland.,VitroLive Fertility Clinic in Szczecin, Szczecin 70-483, Poland
| | - Kamil Gill
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin 71-210, Poland
| | - Joanna Jakubik
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin 71-210, Poland
| | - Monika Fraczek
- Institute of Human Genetics, Polish Academy of Sciences, Poznan 60-479, Poland
| | - Lukasz Patorski
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin 71-210, Poland.,Department of Gynecology, Endocrinology and Gynecological Oncology, Pomeranian Medical University in Szczecin, Szczecin 71-252, Poland
| | - Dariusz Gaczarzewicz
- Department of Animal Reproduction, Biotechnology and Environmental Hygiene, West Pomeranian University of Technology, Szczecin 71-270, Poland
| | - Rafał Kurzawa
- Department of Procreative Health, Pomeranian Medical University in Szczecin, Szczecin 71-210, Poland.,VitroLive Fertility Clinic in Szczecin, Szczecin 70-483, Poland
| | - Maciej Kurpisz
- Institute of Human Genetics, Polish Academy of Sciences, Poznan 60-479, Poland
| | - Malgorzata Piasecka
- Department of Histology and Developmental Biology, Pomeranian Medical University in Szczecin, Szczecin 71-210, Poland
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31
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DNA damage in aging, the stem cell perspective. Hum Genet 2019; 139:309-331. [PMID: 31324975 DOI: 10.1007/s00439-019-02047-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 07/05/2019] [Indexed: 02/07/2023]
Abstract
DNA damage is one of the most consistent cellular process proposed to contribute to aging. The maintenance of genomic and epigenomic integrity is critical for proper function of cells and tissues throughout life, and this homeostasis is under constant strain from both extrinsic and intrinsic insults. Considering the relationship between lifespan and genotoxic burden, it is plausible that the longest-lived cellular populations would face an accumulation of DNA damage over time. Tissue-specific stem cells are multipotent populations residing in localized niches and are responsible for maintaining all lineages of their resident tissue/system throughout life. However, many of these stem cells are impacted by genotoxic stress. Several factors may dictate the specific stem cell population response to DNA damage, including the niche location, life history, and fate decisions after damage accrual. This leads to differential handling of DNA damage in different stem cell compartments. Given the importance of adult stem cells in preserving normal tissue function during an individual's lifetime, DNA damage sensitivity and accumulation in these compartments could have crucial implications for aging. Despite this, more support for direct functional effects driven by accumulated DNA damage in adult stem cell compartments is needed. This review will present current evidence for the accumulation and potential influence of DNA damage in adult tissue-specific stem cells and propose inquiry directions that could benefit individual healthspan.
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32
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Micic S, Lalic N, Djordjevic D, Bojanic N, Bogavac‐Stanojevic N, Busetto GM, Virmani A, Agarwal A. Double-blind, randomised, placebo-controlled trial on the effect of L-carnitine and L-acetylcarnitine on sperm parameters in men with idiopathic oligoasthenozoospermia. Andrologia 2019; 51:e13267. [PMID: 30873633 PMCID: PMC6850469 DOI: 10.1111/and.13267] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 02/19/2019] [Accepted: 02/20/2019] [Indexed: 12/12/2022] Open
Abstract
Carnitine is essential for energy metabolism and spermatozoa maturation. Combining L-carnitine and L-acetylcarnitine with micronutrients has been investigated as a treatment for infertility in men. We evaluated the effects of a therapeutic formulation, Proxeed Plus, on sperm parameters in oligoasthenozoospermic men. This prospective, randomised, double-blind, placebo-controlled clinical trial involved 175 males (19-44 years) with idiopathic oligoasthenozoospermia who failed to impregnate their partners (12 months). Males received Proxeed Plus or placebo for 3 and 6 months. Sperm volume, progressive motility and vitality significantly (p < 0.001) improved after 6 months compared to baseline. Sperm DNA fragmentation index significantly decreased compared to baseline (p < 0.001) and the 3-month therapy (p = 0.014) in treated men. Increased seminal carnitine and α-glucosidase concentration also positively correlated with improved progressive motility. Decreased DNA fragmentation index was the good predictor of progressive sperm motility >10%, and simultaneous measurement of changes in sperm vitality and DNA fragmentation index gave the highest probability of sperm motility 10% (AUC = 0.924; 95% CI = 0.852-0.996; p < 0.001). Logistic regression analyses revealed DNA fragmentation index decrease as the only independent predictor of sperm motility 10% (OR = 1.106; p = 0.034). We have demonstrated the beneficial effects of carnitine derivatives on progressive motility, vitality and sperm DNA fragmentation. Combining metabolic and micronutritive factors is beneficial for male infertility.
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Affiliation(s)
- Sava Micic
- Andrology DepartmentUromedica PolyclinicBelgradeSerbia
| | - Natasa Lalic
- Andrology DepartmentUromedica PolyclinicBelgradeSerbia
| | | | | | | | | | - Ashraf Virmani
- Innovation‐Research and DevelopmentSigma tau Health ScienceUtrechtThe Netherlands
| | - Ashok Agarwal
- American Center for Reproductive MedicineAndrology CenterClevelandOhio
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33
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Micic S, Lalic N, Djordjevic D, Bojanic N, Bogavac-Stanojevic N, Busetto GM, Virmani A, Agarwal A. Double-blind, randomised, placebo-controlled trial on the effect of L-carnitine and L-acetylcarnitine on sperm parameters in men with idiopathic oligoasthenozoospermia. Andrologia 2019. [PMID: 30873633 DOI: 10.1111/and.13267)] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Carnitine is essential for energy metabolism and spermatozoa maturation. Combining L-carnitine and L-acetylcarnitine with micronutrients has been investigated as a treatment for infertility in men. We evaluated the effects of a therapeutic formulation, Proxeed Plus, on sperm parameters in oligoasthenozoospermic men. This prospective, randomised, double-blind, placebo-controlled clinical trial involved 175 males (19-44 years) with idiopathic oligoasthenozoospermia who failed to impregnate their partners (12 months). Males received Proxeed Plus or placebo for 3 and 6 months. Sperm volume, progressive motility and vitality significantly (p < 0.001) improved after 6 months compared to baseline. Sperm DNA fragmentation index significantly decreased compared to baseline (p < 0.001) and the 3-month therapy (p = 0.014) in treated men. Increased seminal carnitine and α-glucosidase concentration also positively correlated with improved progressive motility. Decreased DNA fragmentation index was the good predictor of progressive sperm motility >10%, and simultaneous measurement of changes in sperm vitality and DNA fragmentation index gave the highest probability of sperm motility 10% (AUC = 0.924; 95% CI = 0.852-0.996; p < 0.001). Logistic regression analyses revealed DNA fragmentation index decrease as the only independent predictor of sperm motility 10% (OR = 1.106; p = 0.034). We have demonstrated the beneficial effects of carnitine derivatives on progressive motility, vitality and sperm DNA fragmentation. Combining metabolic and micronutritive factors is beneficial for male infertility.
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Affiliation(s)
- Sava Micic
- Andrology Department, Uromedica Polyclinic, Belgrade, Serbia
| | - Natasa Lalic
- Andrology Department, Uromedica Polyclinic, Belgrade, Serbia
| | | | - Nebojsa Bojanic
- Urologic Clinic, Clinical Center of Serbia, Belgrade, Serbia
| | | | | | - Ashraf Virmani
- Innovation-Research and Development, Sigma tau Health Science, Utrecht, The Netherlands
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Andrology Center, Cleveland, Ohio
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34
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Amerian M, Mohammadi S, Fayazi S, Faghani Aghoozi M, Malari M. Related Determinants of Decision-Making in the First Childbearing of Couples: A Narrative Review. PREVENTIVE CARE IN NURSING AND MIDWIFERY JOURNAL 2019. [DOI: 10.29252/pcnm.9.1.49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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35
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Agarwal A, Panner Selvam MK, Baskaran S, Cho CL. Sperm DNA damage and its impact on male reproductive health: a critical review for clinicians, reproductive professionals and researchers. Expert Rev Mol Diagn 2019; 19:443-457. [DOI: 10.1080/14737159.2019.1614916] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | | | - Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Chak-Lam Cho
- Department of Surgery, Union Hospital, Sha Tin, Hong Kong
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36
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Paoli D, Pecora G, Pallotti F, Faja F, Pelloni M, Lenzi A, Lombardo F. Cytological and molecular aspects of the ageing sperm. Hum Reprod 2018; 34:218-227. [DOI: 10.1093/humrep/dey357] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 11/20/2018] [Indexed: 01/09/2023] Open
Affiliation(s)
- Donatella Paoli
- Laboratory of Seminology – Sperm Bank ‘Loredana Gandini’ Department of Experimental Medicine, ‘Sapienza’ University of Rome, Italy
| | - Giulia Pecora
- Laboratory of Seminology – Sperm Bank ‘Loredana Gandini’ Department of Experimental Medicine, ‘Sapienza’ University of Rome, Italy
| | - Francesco Pallotti
- Laboratory of Seminology – Sperm Bank ‘Loredana Gandini’ Department of Experimental Medicine, ‘Sapienza’ University of Rome, Italy
| | - Fabiana Faja
- Laboratory of Seminology – Sperm Bank ‘Loredana Gandini’ Department of Experimental Medicine, ‘Sapienza’ University of Rome, Italy
| | - Marianna Pelloni
- Laboratory of Seminology – Sperm Bank ‘Loredana Gandini’ Department of Experimental Medicine, ‘Sapienza’ University of Rome, Italy
| | - Andrea Lenzi
- Laboratory of Seminology – Sperm Bank ‘Loredana Gandini’ Department of Experimental Medicine, ‘Sapienza’ University of Rome, Italy
| | - Francesco Lombardo
- Laboratory of Seminology – Sperm Bank ‘Loredana Gandini’ Department of Experimental Medicine, ‘Sapienza’ University of Rome, Italy
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37
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Punjabi U, Van Mulders H, Goovaerts I, Peeters K, Clasen K, Janssens P, Zemtsova O, De Neubourg D. Sperm DNA fragmentation in the total and vital fractions before and after density gradient centrifugation: Significance in male fertility diagnosis. Clin Biochem 2018; 62:47-54. [DOI: 10.1016/j.clinbiochem.2018.05.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/19/2018] [Indexed: 01/29/2023]
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38
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Bertoncelli Tanaka M, Agarwal A, Esteves SC. Paternal age and assisted reproductive technology: problem solver or trouble maker? Panminerva Med 2018; 61:138-151. [PMID: 30021419 DOI: 10.23736/s0031-0808.18.03512-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In our society, the number of couples with advanced reproductive age seeking fertility treatment is increasing steadily. While the negative effect of female age on assisted reproductive technology (ART) outcomes is well established, the impact of paternal age needs to be clarified. We reviewed the current literature to determine whether advanced paternal age affects the results of ART and the health of resulting offspring. We found that the published literature is overall supportive of a positive association between advanced paternal age (>40 years) and semen quality deterioration. However, the existing evidence does not corroborate nor discard the influence of advanced paternal age on ART outcomes. Similarly, the effect of paternal age on the health of ART offspring remains equivocal, although data from naturally-conceived children clearly indicates that advanced paternal age increases the frequency of genetic, neurodevelopmental, and psychiatric diseases in the progeny. Noteworthy, the current literature is limited and subjected to bias due to the impact of maternal age as a critical confounder. Health care providers should discuss with concerned couples the available options to counteract the possible negative influence of advanced paternal age on ART outcomes and health of resulting offspring. These include identification and treatment of underlying conditions with potential negative long-term effects on fertility, sperm freezing at a young age, and use of antioxidant supplements for men at risk of excessive oxidative stress. Aged male partner from couples undergoing ART, in particular men of 50 years and older, should consider use of preimplantation genetic testing as a means to detect embryo abnormalities and select euploid embryos for transfer to the uterine cavity.
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Affiliation(s)
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Department of Urology, Cleveland Clinic, Cleveland, OH, USA
| | - Sandro C Esteves
- Division of Urology, Department of Surgery, University of Campinas (UNICAMP), Campinas, Brazil - .,Andrology and Human Reproduction Clinic ANDROFERT, Campinas, Brazil.,Faculty of Health, Aarhus University, Aarhus, Denmark
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Ayaz A, Agarwal A, Sharma R, Kothandaraman N, Cakar Z, Sikka S. Proteomic analysis of sperm proteins in infertile men with high levels of reactive oxygen species. Andrologia 2018; 50:e13015. [PMID: 29656391 DOI: 10.1111/and.13015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2018] [Indexed: 12/17/2022] Open
Abstract
Oxidative stress is a significant risk factor for male infertility. A pro-oxidant testicular environment may alter the expression profile of functional sperm proteins and result in poor sperm quality. Patients and donors were divided into ROS (-) and ROS (+) groups. Using computational studies, and data mining of available literature on spermatozoa, oxidative stress and proteomics, we identified three core regulatory proteins angiotensin-converting enzyme (ACE), heat-shock protein (Hsp70) family A member 2 (HSPA2) and ribosomal protein subunit 27A (RPS27A) and seven interlink proteins NOS2, SUMO2, UBL4A, FBXO25, MAP3K3, APP and UBC. HSPA2 was validated by Western Blot, while the localisation of ACE, RPS27A, MAP3K3 and APP was identified by immunocytochemistry. The obtained results showed that HSPA2 was 1.2 (ROS+) and 2.1 (ROS-) fold downregulated in spermatozoa from patients with high levels of reactive oxygen species (ROS). ACE and APP were localised in the post-acrosomal region of spermatozoa, whereas RPS27A and MAP3K3 were localised either in the tail or sperm neck area. Our data show that these proteins may play a role in ROS-induced male infertility.
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Affiliation(s)
- A Ayaz
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Urology, Tulane Medical Center, New Orleans, LA, USA
| | - A Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - R Sharma
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - N Kothandaraman
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Z Cakar
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - S Sikka
- Department of Urology, Tulane Medical Center, New Orleans, LA, USA
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Kaarouch I, Bouamoud N, Madkour A, Louanjli N, Saadani B, Assou S, Aboulmaouahib S, Amzazi S, Copin H, Benkhalifa M, Sefrioui O. Paternal age: Negative impact on sperm genome decays and IVF outcomes after 40 years. Mol Reprod Dev 2018; 85:271-280. [PMID: 29392876 DOI: 10.1002/mrd.22963] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 01/16/2018] [Indexed: 12/16/2022]
Abstract
This study assessed sperm quality declining on relation to paternal age and its impact on in vitro fertilization (IVF) outcomes in order to estimate the APA (Advanced Paternal Age) cutoff. For this, 83 couples undergoing IVF treatment for male factor infertility were enrolled. The women age was ≤39 years, whereas the men were divided in two groups: APA (n = 41; age ≥ 40 years) and young (Y) (n = 42; age < 40 years). Conventional semen parameters (volume, concentration, motility, vitality, and morphology) were analyzed in the collected sperm samples. Furthermore, sperm genome decays (SGD) was assessed by TUNEL assay (DNA fragmentation), aniline blue staining (chromatin decondensation), and fluorescent in situ hybridization (aneuploidy). No significant difference was found concerning the conventional semen parameters between APA and Y groups. Conversely, SGD analysis showed increased DNA fragmentation; chromatin decondensation and sperm aneuploidy rates in the APA group (respectively, 41%, 43%, and 14% vs. 25%, 23%, and 4% in Y group). IVF outcomes also were affected by paternal age as indicated by the rates of cancelled embryo transfers, clinical pregnancy and miscarriage in the two groups APA and Y (29%, 17%, and 60% vs. 10%, 32%, and 42%). Finally, statistical analysis of the results suggests that the age of 40 should be considered as the APA cutoff during ART attempts.
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Affiliation(s)
- Ismail Kaarouch
- Faculty of Sciences, Biochemistry and Immunology Laboratory, Mohammed V University, Rabat, Morocco
| | - Nouzha Bouamoud
- Faculty of Sciences, Biochemistry and Immunology Laboratory, Mohammed V University, Rabat, Morocco
| | - Aicha Madkour
- Faculty of Sciences, Biochemistry and Immunology Laboratory, Mohammed V University, Rabat, Morocco
| | | | - Brahim Saadani
- IVF center IRIFIV Clinique des Iris, Place de nid aux Iris, Casablanca, Morocco
| | - Said Assou
- Université Montpellier, UFR de Médecine, Institute for Regenerative Medicine and Biotherapy, INSERM U1183, CHRU Montpellier, Hôpital Saint-Eloi, Montpellier, France
| | | | - Saaid Amzazi
- Faculty of Sciences, Biochemistry and Immunology Laboratory, Mohammed V University, Rabat, Morocco
| | - Henri Copin
- Reproductive Biology and Medical Cytogenetics Laboratory, Regional University Hospital & School of Medicine, Picardie University Jules Verne, Amiens, France
| | - Moncef Benkhalifa
- Reproductive Medicine, Developmental and Reproductive Biology, Regional University Hospital & School of Medicine and PERITOX Laboratory, Picardie University Jules Verne, Amiens, France
| | - Omar Sefrioui
- Anfa Fertility Center, Privante Clinic of Human Reproduction and Endoscopic surgery, Casablanca, Morocco
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Spermatozoal Fractalkine Signaling Pathway Is Upregulated in Subclinical Varicocele Patients with Normal Seminogram and Low-Level Leucospermia. Adv Urol 2017. [PMID: 29527225 PMCID: PMC5816887 DOI: 10.1155/2017/5674237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background Fractalkine is produced in seminal plasma in small amounts and correlates with sperm motility. Purpose To investigate the possible effect of low-level leucospermia on spermatozoa oxidative stress and sDNA fragmentation in patients with subclinical varicocele and apparently normal seminogram, and also to study the role of spermatozoal fractalkine and its receptor (CX3CR1) gene expression as a marker of spermatozoa inflammatory response. Methods This study included 80 patients with subclinical varicocele (45 fertile and 35 infertile) and 45 age-matched fertile volunteers. In semen samples, fractalkine and CX3CR1 gene expression were investigated by qRT-PCR. Moreover, seminal plasma malondialdehyde (MDA) and total antioxidant capacity (TAC) were measured. Results There are significant decrease in semen quality and significant increase in seminal leucocytes count in subclinical varicocele. Our results show a significant increase in MDA and TAC levels, DNA fragmentation, and expression levels of fractalkine and its receptor (CX3CR1) in subclinical varicocele groups. Conclusion Subclinical varicocele induces seminal and spermatozoal subclinical inflammatory response in the form of low-level leucospermia and increased mRNA expression of the fractalkine signaling pathway, leading to increased spermatozoal ROS production, oxidative stress, and DNA fragmentation. These could cooperate in the pathogenesis of delayed fertility in males with subclinical varicocele.
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Bernabò N, Ciccarelli R, Greco L, Ordinelli A, Mattioli M, Barboni B. Scientometric study of the effects of exposure to non-ionizing electromagnetic fields on fertility: A contribution to understanding the reasons of partial failure. PLoS One 2017; 12:e0187890. [PMID: 29211813 PMCID: PMC5718611 DOI: 10.1371/journal.pone.0187890] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Accepted: 10/27/2017] [Indexed: 12/18/2022] Open
Abstract
The exposure to Non-Ionizing-Electromagnetic Fields (NI-EMFs) is often indicated as a cofactor responsible for the fertility reduction, which has been described in recent years. Despite the great interest in this topic and the research effort in exploring it, to date, there are no reliable data. Therefore, we carried out a scientometric analysis of the scientific literature published in peer reviewed Journals concerning this topic to better understand the reasons of this partial failure. To this aim, we identified and analysed 104 papers, published in last 26 years in peer-reviewed Journals, present in ISI Web of Knowledge Core Collection. Then, we analysed the impact of the Journals in which the papers were published as well as that of the single papers, the paper citation dynamics, the keywords citation busts, the geographical localization of citations and the co-authorship dynamics of the Authors. As a result, we found that different animal models (rodent, rabbit, guinea pig, and swine) and different experimental approaches (epidemiological vs. experimental studies) have the same impact, highlighting the lack of universally adopted standard in research activity. The analysis of the temporal trend in keywords and the high differences in citations between the different countries (also in those belonging to the same geographical and socio-economical area) pointed out the difficulties in approaching this branch of study. Lastly, it was evident that the Authors did not behave as a connected community, but as unconnected clusters of very small size. In conclusion, based on the results of our analysis, we think that important efforts must be undertaken to adopt more standardized models and to improve the research quality and the information exchange within the scientific community, with the aim of improving the reliability and usefulness of the results of research regarding the effect of NI-EMFs on fertility.
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Affiliation(s)
- Nicola Bernabò
- Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
| | - Rosa Ciccarelli
- Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
| | - Luana Greco
- Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
| | - Alessandra Ordinelli
- Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
| | - Mauro Mattioli
- Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
| | - Barbara Barboni
- Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
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43
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Sperm DNA fragmentation in miscarriage – a promising diagnostic, or a test too far? Reprod Biomed Online 2017; 34:3-4. [DOI: 10.1016/j.rbmo.2016.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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44
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Abstract
BACKGROUND In Germany there is an emerging trend for postponing parenthood due to non-medical, sociocultural reasons. This clearly impacts on the reproductive success due to an age-dependent decrease in fertility. Thus, strategies and techniques are currently discussed which could preserve the female fertility status, among which social freezing (cryopreservation of oocytes) for later fertilization is the most realistic one; however, while there is an intensive discussion on the procedure and timing of oocyte cryopreservation, virtually no attention has been paid to the male side and the aging effects on the male germ cells. AIM To evaluate the risk paternal age poses for the integrity of germ cells. METHODS For this review a literature search using PubMed, data from the Federal Statistical Office of Germany, the German in vitro fertilization (IVF) register as well as own data were used. RESULTS Sperm cell integrity is clearly affected by age both at the genetic as well as at the epigenetic levels. The estimated mutation rate for spermatozoa doubles every 16.5 years. Monogenic and multifactorial diseases are strongly associated with paternal age. Men aged >40 years have an increased risk of passing age-related mutations to their children. CONCLUSIONS Cryopreservation of spermatozoa is an option for men who postpone planning a family. Genetic counseling is recommended for couples undertaking social freezing and a male age of >40 years.
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Affiliation(s)
- J Gromoll
- Centrum für Reproduktionsmedizin und Andrologie, Abteilung Klinische Andrologie, WHO Kooperationszentrum, EAA Ausbildungszentrum, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, Gebäude D11, 48149, Münster, Deutschland
| | - F Tüttelmann
- Institut für Humangenetik, Universitätsklinikum Münster, Münster, Deutschland
- Deutsche Gesellschaft für Andrologie, Dortmund, Deutschland
| | - S Kliesch
- Centrum für Reproduktionsmedizin und Andrologie, Abteilung Klinische Andrologie, WHO Kooperationszentrum, EAA Ausbildungszentrum, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, Gebäude D11, 48149, Münster, Deutschland.
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45
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Kariman N, Amerian M, Jannati P, Salmani F. Factors influencing first childbearing timing decisions among men: Path analysis. Int J Reprod Biomed 2016; 14:589-596. [PMID: 27738661 PMCID: PMC5054296] [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: 11/19/2022] Open
Abstract
BACKGROUND Factors that influence men's childbearing intentions have been relatively unexplored in the literature. OBJECTIVE This study aimed to determine the influencing factors about the first childbearing timing decisions of men. MATERIALS AND METHODS In this cross-sectional study, 300 men who were referred to private and governmental healthcare centers in Shahrood, Iran were randomly recruited from April to September 2014. Data were collected using a demographic questionnaire, the Quality of Life Questionnaire; ENRICH Marital Satisfaction Questionnaire, Synder's Hope Scale, and the Multidimensional Scale of Perceived Social Support. RESULTS After removing the statistically insignificant paths, men's age at marriage had the highest direct effect (β=0.86) on their first childbearing decision. Marital satisfaction (β=-0.09), social support (β=0.06), economic status (β=0.06), and quality of life (β=-0.08) were other effective factors on men's first childbearing decisions. Moreover, marital satisfaction and social support had significant indirect effects on men's childbearing decisions (β=-0.04 and -0.01, respectively). CONCLUSION Many factors, including personal factors (age at marriage and quality of life), family factors (marital satisfaction), and social factors (social support), can affect men's decision to have a child. Policymakers are hence required to develop strategies to promote the socioeconomic and family conditions of the couples and to encourage them to have as many children as they desire at an appropriate time.
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Affiliation(s)
- Nourossadat Kariman
- Department of Midwifery and Reproductive Health, Nursing and Midwifery Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Maliheh Amerian
- Department of Midwifery, School of Nursing and Midwifery, Shahrood University of Medical Sciences, Shahrood, Iran.
| | - Padideh Jannati
- Department of Midwifery and Reproductive Health, Nursing and Midwifery Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Fatemeh Salmani
- Department of Statistics, Paramedical Sciences Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Kariman N, Amerian M, Jannati P, Salmani F. Factors influencing first childbearing timing decisions among men: Path analysis. Int J Reprod Biomed 2016. [DOI: 10.29252/ijrm.14.9.589] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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47
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Yeste M, Jones C, Amdani SN, Yelumalai S, Mounce G, da Silva SJM, Child T, Coward K. Does advancing male age influence the expression levels and localisation patterns of phospholipase C zeta (PLCζ) in human sperm? Sci Rep 2016; 6:27543. [PMID: 27270687 PMCID: PMC4897631 DOI: 10.1038/srep27543] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 05/17/2016] [Indexed: 12/02/2022] Open
Abstract
Socio-economic factors have led to an increasing trend for couples to delay parenthood. However, advancing age exerts detrimental effects upon gametes which can have serious consequences upon embryo viability. While such effects are well documented for the oocyte, relatively little is known with regard to the sperm. One fundamental role of sperm is to activate the oocyte at fertilisation, a process initiated by phospholipase C zeta (PLCζ), a sperm-specific protein. While PLCζ deficiency can lead to oocyte activation deficiency and infertility, it is currently unknown whether the expression or function of PLCζ is compromised by advancing male age. Here, we evaluate sperm motility and the proportion of sperm expressing PLCζ in 71 males (22–54 years; 44 fertile controls and 27 infertile patients), along with total levels and localisation patterns of PLCζ within the sperm head. Three different statistical approaches were deployed with male age considered both as a categorical and a continuous factor. While progressive motility was negatively correlated with male age, all three statistical models concurred that no PLCζ–related parameter was associated with male age, suggesting that advancing male age is unlikely to cause problems in terms of the sperm’s fundamental ability to activate an oocyte.
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Affiliation(s)
- Marc Yeste
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, United Kingdom
| | - Celine Jones
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, United Kingdom
| | - Siti Nornadhirah Amdani
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, United Kingdom.,PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, Brunei Darussalam
| | - Suseela Yelumalai
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, United Kingdom
| | - Ginny Mounce
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, United Kingdom
| | - Sarah J Martins da Silva
- Medical Research Institute, University of Dundee, Ninewells Hospital and Medical School, Dundee, DD1 9SY, UK.,Assisted Conception Unit, NHS Tayside, Ninewells Hospital, Dundee, DD1 9SY, UK
| | - Tim Child
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, United Kingdom.,Oxford Fertility, Institute of Reproductive Sciences, Oxford Business Park North, Alec Issigonis Way, Oxford, OX4 2HW
| | - Kevin Coward
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, United Kingdom
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Roychoudhury S, Sharma R, Sikka S, Agarwal A. Diagnostic application of total antioxidant capacity in seminal plasma to assess oxidative stress in male factor infertility. J Assist Reprod Genet 2016; 33:627-635. [PMID: 26941096 DOI: 10.1007/s10815-016-0677-5] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 02/11/2016] [Indexed: 11/25/2022] Open
Abstract
PURPOSE This study was undertaken in order to establish a new reference value for the total antioxidant capacity (TAC) in seminal plasma as a predictor of fertility. This study also aims to propose a detailed protocol for the TAC assay including calculation of assay results and assessment of sensitivity and specificity over possible cutoff values in infertile men and controls with proven and unproven fertility. METHODS Seminal plasma from 279 infertile patients and 46 normal healthy men referred to a male infertility testing laboratory were tested to measure TAC by a colorimetric assay kit. Receiver operating characteristics (ROC) curves were generated to establish cutoff values, sensitivity, and specificity, and the distribution of cutoff values in controls and infertile patients was calculated. RESULTS Infertile patients showed significantly lower levels (mean ± SEM) of total antioxidants (micromolar Trolox equivalents) in their seminal plasma (1863.84 ± 27.16 μM) compared to those from fertile men (2013 ± 56.04 μM, P = 0.019). A preferred cutoff TAC value of 1947 μM could facilitate better diagnosis of oxidative stress (OS) in men with male factor infertility. At this threshold, the specificity of TAC assay was 63.0 % and the sensitivity 59.5 % with a positive predictive value of 90.7 % and a negative predictive value of 20.4 %. CONCLUSIONS Our results establish a new diagnostic cutoff TAC value of 1947 μM in seminal plasma to distinguish prevalence of OS in infertile patients compared to healthy men. This study provides a robust reference value of seminal plasma TAC that may provide an important diagnostic tool to the physicians for managing OS and male factor infertility in such patients.
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Affiliation(s)
- Shubhadeep Roychoudhury
- American Center for Reproductive Medicine, Cleveland Clinic, 10681 Carnegie Avenue, Desk X11, Cleveland, OH, 44195, USA
- Department of Life Science and Bioinformatics, Assam University, Silchar, 788011, India
| | - Rakesh Sharma
- American Center for Reproductive Medicine, Cleveland Clinic, 10681 Carnegie Avenue, Desk X11, Cleveland, OH, 44195, USA
| | - Suresh Sikka
- Tulane University Health Sciences Center, New Orleans, LA, 70112-2699, USA
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, 10681 Carnegie Avenue, Desk X11, Cleveland, OH, 44195, USA.
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Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay using bench top flow cytometer for evaluation of sperm DNA fragmentation in fertility laboratories: protocol, reference values, and quality control. J Assist Reprod Genet 2016; 33:291-300. [PMID: 26780327 DOI: 10.1007/s10815-015-0635-7] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 12/07/2015] [Indexed: 10/22/2022] Open
Abstract
PURPOSE The purpose of this study is to provide a detailed protocol and quality control steps for measuring sperm DNA fragmentation (SDF) by terminal deoxynucleotidyl transferase deoxyuridine triphosphate (dUTP) nick end labeling (TUNEL) assay using a new bench top flow cytometer, determine the reference value of SDF, and assess sensitivity, specificity, and distribution of SDF in infertile men and controls with proven and unproven fertility. METHODS Semen specimens from 95 controls and 261 infertile men referred to a male infertility testing laboratory were tested for SDF by TUNEL assay using Apo-Direct kit and a bench top flow cytometer. Percentage of cells positive for TUNEL was calculated. Inter- and intraobserver variability was examined. TUNEL cutoff value, sensitivity, specificity, and distribution of different cutoff values in controls and infertile patients were calculated. RESULTS The reference value of SDF by TUNEL assay was 16.8 % with a specificity of 91.6 % and sensitivity of 32.6 %. The positive and negative predictive values were 91.4 and 33.1 %, respectively. The upper limit of DNA damage in infertile men was significantly higher (68.9 %) than that in the controls (19.6 %). CONCLUSIONS TUNEL assay using flow cytometry is a reproducible and easy method to determine SDF. At a cutoff point of 16.8 %, the test showed high specificity and positive predictive value. The results of this test could identify infertile men whose sperm DNA fragmentation does not contribute to their infertility and confirm that a man who tests positive is likely to be infertile due to elevated sperm DNA fragmentation.
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INFERTILIDAD MASCULINA Y FRAGMENTACIÓN DEL ADN ESPERMÁTICO: UN PROBLEMA ACTUAL. TIP REVISTA ESPECIALIZADA EN CIENCIAS QUÍMICO-BIOLÓGICAS 2015. [DOI: 10.1016/j.recqb.2015.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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