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Pintus E, Chinn AF, Kadlec M, García-Vázquez FA, Novy P, Matson JB, Ros-Santaella JL. N-thiocarboxyanhydrides, amino acid-derived enzyme-activated H 2S donors, enhance sperm mitochondrial activity in presence and absence of oxidative stress. BMC Vet Res 2023; 19:52. [PMID: 36797726 PMCID: PMC9933379 DOI: 10.1186/s12917-023-03593-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 01/27/2023] [Indexed: 02/18/2023] Open
Abstract
BACKGROUND Hydrogen sulfide (H2S) donors are crucial tools not only for understanding the role of H2S in cellular function but also as promising therapeutic agents for oxidative stress-related diseases. This study aimed to explore the effect of amino acid-derived N-thiocarboxyanhydrides (NTAs), which release physiological H2S levels in the presence of carbonic anhydrase, on porcine sperm function during short-term incubation with and without induced oxidative stress. For this purpose, we employed two H2S-releasing NTAs with release half-lives (t1/2) in the range of hours that derived from the amino acids glycine (Gly-NTA) or leucine (Leu-NTA). Because carbonic anhydrase is crucial for H2S release from NTAs, we first measured the activity of this enzyme in the porcine ejaculate. Then, we tested the effect of Gly- and Leu-NTAs at 10 and 1 nM on sperm mitochondrial activity, plasma membrane integrity, acrosomal status, motility, motile subpopulations, and redox balance during short-term incubation at 38 °C with and without a reactive oxygen species (ROS)-generating system. RESULTS Our results show that carbonic anhydrase is found both in spermatozoa and seminal plasma, with activity notably higher in the latter. Both Gly- and Leu-NTAs did not exert any noxious effects, but they enhanced sperm mitochondrial activity in the presence and absence of oxidative stress. Moreover, NTAs (except for Leu-NTA 10 nM) tended to preserve the sperm redox balance against the injuries provoked by oxidative stress, which provide further support to the antioxidant effect of H2S on sperm function. Both compounds also increased progressive motility over short-term incubation, which may translate into prolonged sperm survival. CONCLUSIONS The presence of carbonic anhydrase activity in mammalian spermatozoa makes NTAs promising molecules to investigate the role of H2S in sperm biology. For the first time, beneficial effects of NTAs on mitochondrial activity have been found in mammalian cells in the presence and absence of oxidative stress. NTAs are interesting compounds to investigate the role of H2S in sperm mitochondria-dependent events and to develop H2S-related therapeutic protocols against oxidative stress in assisted reproductive technologies.
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Affiliation(s)
- Eliana Pintus
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 16500, Prague, Czech Republic.
| | - Abigail F. Chinn
- grid.438526.e0000 0001 0694 4940Department of Chemistry, Virginia Tech Center for Drug Discovery, and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061 USA
| | - Martin Kadlec
- grid.15866.3c0000 0001 2238 631XDepartment of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 16500 Prague, Czech Republic
| | - Francisco Alberto García-Vázquez
- grid.10586.3a0000 0001 2287 8496Departamento de Fisiología, Facultad de Veterinaria, Campus de Excelencia Internacional Mare Nostrum, Universidad de Murcia, 30100 Murcia, Spain
| | - Pavel Novy
- grid.15866.3c0000 0001 2238 631XDepartment of Food Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 16500 Prague, Czech Republic
| | - John B. Matson
- grid.438526.e0000 0001 0694 4940Department of Chemistry, Virginia Tech Center for Drug Discovery, and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061 USA
| | - José Luis Ros-Santaella
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 16500, Prague, Czech Republic.
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2
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Gill K, Machalowski T, Harasny P, Kups M, Grabowska M, Duchnik E, Sipak O, Fraczek M, Kurpisz M, Kurzawa R, Piasecka M. Male Infertility Coexists with Decreased Sperm Genomic Integrity and Oxidative Stress in Semen Irrespective of Leukocytospermia. Antioxidants (Basel) 2022; 11:antiox11101987. [PMID: 36290709 PMCID: PMC9598546 DOI: 10.3390/antiox11101987] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 09/30/2022] [Accepted: 10/03/2022] [Indexed: 11/30/2022] Open
Abstract
Our research was designed to verify the relationship between male infertility, basic semen characteristics (with respect to detailed sperm morphology), sperm DNA fragmentation (SDF), oxidation-reduction potential in semen (ORP), and leukocytospermia. The obtained results showed that infertile groups (with or without leukocytospermia) had significantly lower basic semen characteristics and higher SDF, raw ORP, and static ORP (sORP) than fertile controls. The thresholds of 13% SDF (AUC = 0.733) and 1.40 sORP (AUC = 0.857) were predictive values for discriminating infertile from fertile men. In infertile groups, a higher prevalence and risk for >13% SDF and >1.40 sORP were revealed. Unexpectedly, leukocytospermic subjects had lower sORP, prevalence, and risk for >1.40 sORP than leukocytospermic-negative men. These groups did not differ in SDF and raw ORP. Both SDF and sORP negatively correlated with basic semen parameters but positively correlated with sperm head and midpiece defects. sORP positively correlated with sperm tail defects, immature sperm cells with excess residual cytoplasm, and SDF. In turn, raw ORP negatively correlated with sperm count but positively correlated with SDF and sORP. These findings indicate that (1) there is a relationship between male infertility, SDF, and OS in semen; (2) in infertile men, there is a clinically significant risk of SDF and OS irrespective of leukocytospermia; and (3) the assessment of SDF and oxidative stress should be independent of leukocytospermia.
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Affiliation(s)
- Kamil Gill
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University, 71-210 Szczecin, Poland
- Correspondence: (K.G.); (M.P.)
| | - Tomasz Machalowski
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University, 71-210 Szczecin, Poland
- Department of Perinatology, Obstetrics and Gynecology, Faculty of Medicine and Dentistry, Pomeranian Medical University, 72-010 Police, Poland
| | - Patryk Harasny
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University, 71-210 Szczecin, Poland
- Department of Urology and Urological Oncology, Faculty of Medicine and Dentistry, Pomeranian Medical University in Szczecin, 70-111 Szczecin, Poland
| | - Michal Kups
- Department of Urology and Oncological Urology, Regional Specialist Hospital in Szczecin, 71-455 Szczecin, Poland
- The Fertility Partnership Vitrolive in Szczecin, 70-483 Szczecin, Poland
| | - Marta Grabowska
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University, 71-210 Szczecin, Poland
| | - Ewa Duchnik
- Department of Aesthetic Dermatology, Faculty of Health Sciences, Pomeranian Medical University in Szczecin, 70-111 Szczecin, Poland
| | - Olimpia Sipak
- Department of Obstetrics and Pathology of Pregnancy, Faculty of Health Sciences, Pomeranian Medical University in Szczecin, 71-210 Szczecin, Poland
| | - Monika Fraczek
- Institute of Human Genetics, Polish Academy of Sciences, 60-479 Poznan, Poland
| | - Maciej Kurpisz
- Institute of Human Genetics, Polish Academy of Sciences, 60-479 Poznan, Poland
| | - Rafal Kurzawa
- The Fertility Partnership Vitrolive in Szczecin, 70-483 Szczecin, Poland
- Department of Gynecology and Reproductive Health, Faculty of Health Sciences, Pomeranian Medical University in Szczecin, 71-210 Szczecin, Poland
| | - Malgorzata Piasecka
- Department of Histology and Developmental Biology, Faculty of Health Sciences, Pomeranian Medical University, 71-210 Szczecin, Poland
- Correspondence: (K.G.); (M.P.)
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3
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Henkel R, Morris A, Vogiatzi P, Saleh R, Sallam H, Boitrelle F, Garrido N, Arafa M, Gül M, Rambhatla A, Rosas IM, Agarwal A, Leisegang K, Siebert TI. Predictive value of seminal oxidation-reduction potential (ORP) analysis for reproductive outcomes of intracytoplasmic sperm injection (ICSI) cycles. Reprod Biomed Online 2022; 45:1007-1020. [DOI: 10.1016/j.rbmo.2022.05.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 04/19/2022] [Accepted: 05/17/2022] [Indexed: 10/18/2022]
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Boitrelle F, Shah R, Saleh R, Henkel R, Kandil H, Chung E, Vogiatzi P, Zini A, Arafa M, Agarwal A. The Sixth Edition of the WHO Manual for Human Semen Analysis: A Critical Review and SWOT Analysis. Life (Basel) 2021; 11:life11121368. [PMID: 34947899 PMCID: PMC8706130 DOI: 10.3390/life11121368] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/01/2021] [Accepted: 12/02/2021] [Indexed: 12/18/2022] Open
Abstract
Semen analysis is the cornerstone of male fertility evaluation with WHO guidelines providing the basis for procedural standardization and reference values worldwide. The first WHO manual was published in 1980, and five editions have been subsequently released over the last four decades. The 6th Edition was published in July 2021. In this review, we identify the key changes of this 6th Edition. Additionally, we evaluate the utility of this 6th Edition in clinical practice using SWOT (strengths, weaknesses, opportunities, and threats) analysis. This new Edition has made the analysis of basic semen parameters more robust, taking into account the criticisms and grey areas of the previous editions. The tests assessing sperm DNA fragmentation and seminal oxidative stress are well-described. The main novelty is that this latest edition abandons the notion of reference thresholds, suggesting instead to replace them with “decision limits”. While this seems attractive, no decision limits are proposed for either basic semen parameters, or for extended or advanced parameters. This critical review of the 6th Edition of the WHO laboratory manual combined with a SWOT analysis summarizes the changes and novelties present in this new Edition and provides an in-depth analysis that could help its global use in the coming years.
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Affiliation(s)
- Florence Boitrelle
- Department of Reproductive Biology, Fertility Preservation, Andrology and CECOS, Poissy Hospital, 78300 Poissy, France;
- Department BREED, UVSQ, INRAE, Paris Saclay University, 78000 Jouy-en-Josas, France
| | - Rupin Shah
- Division of Andrology, Department of Urology, Lilavati Hospital and Research Centre, Mumbai 400050, India;
| | - Ramadan Saleh
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Sohag University, Sohag 82524, Egypt;
- Ajyal IVF Center, Ajyal Hospital, Sohag 82524, Egypt
| | - Ralf Henkel
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London SW7 2AZ, UK;
- Department of Medical Bioscience, University of the Western Cape, Cape Town 7535, South Africa
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH 44195, USA;
- LogixX Pharma, Theale, Reading, Berkshire RG7 4AB, UK
| | - Hussein Kandil
- Fakih IVF Fertility Center, Abu Dhabi 31452, United Arab Emirates;
| | - Eric Chung
- AndroUrology Centre, Brisbane, QLD 4230, Australia;
- Department of Urology, Princess Alexandra Hospital, University of Queensland, Brisbane, QLD 4120, Australia
| | - Paraskevi Vogiatzi
- Andromed Health & Reproduction, Fertility Diagnostics Laboratory, Maroussi, 15126 Athens, Greece;
| | - Armand Zini
- Department of Surgery, McGill University, Montreal, QC H3A 1G5, Canada;
| | - Mohamed Arafa
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH 44195, USA;
- Andrology Department, Cairo University, Giza 11562, Egypt
- Urology Department, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH 44195, USA;
- Correspondence:
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5
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Agarwal A, Leisegang K, Majzoub A, Henkel R, Finelli R, Panner Selvam MK, Tadros N, Parekh N, Ko EY, Cho CL, Arafa M, Alves MG, Oliveira PF, Alvarez JG, Shah R. Utility of Antioxidants in the Treatment of Male Infertility: Clinical Guidelines Based on a Systematic Review and Analysis of Evidence. World J Mens Health 2021; 39:233-290. [PMID: 33474843 PMCID: PMC7994666 DOI: 10.5534/wjmh.200196] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 12/08/2020] [Accepted: 12/16/2020] [Indexed: 12/11/2022] Open
Abstract
It is widely accepted that oxidative stress plays an important role in the pathophysiology of male infertility and that antioxidants could have a significant role in the treatment of male infertility. The main objectives of this study are: 1) to systematically review the current evidence for the utility of antioxidants in the treatment of male infertility; and 2) propose evidence-based clinical guidelines for the use of antioxidants in the treatment of male infertility. A systematic review of the available clinical evidence was performed, with articles published on Scopus being manually screened. Data extracted included the type of antioxidant used, the clinical conditions under investigation, the evaluation of semen parameters and reproductive outcomes. The adherence to the Cambridge Quality Checklist, Cochrane Risk of Bias for randomized controlled trials (RCTs), CONSORT guidelines and JADAD score were analyzed for each included study. Further, we provided a Strength Weakness Opportunity Threat (SWOT) analysis to analyze the current and future value of antioxidants in male infertility. Of the 1,978 articles identified, 97 articles were included in the study. Of these, 52 (53.6%) were uncontrolled (open label), 12 (12.4%) unblinded RCTs, and 33 (34.0%) blinded RCTs, whereas 44 (45.4%) articles tested individual antioxidants, 31 (32.0%) a combination of several products in variable dosages, and 22 (22.6%) registered antioxidant products. Based on the published evidence, we 1) critically examined the necessity of additional double-blind, randomized, placebo-controlled trials, and 2) proposed updated evidence-based clinical guidelines for antioxidant therapy in male infertility. The current systematic review on antioxidants and male infertility clearly shows that antioxidant supplementation improves semen parameters. In addition, it provides the indications for antioxidant treatment in specific clinical conditions, including varicocele, unexplained and idiopathic male infertility, as well as in cases of altered semen quality.
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Affiliation(s)
- Ashok Agarwal
- 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
| | - Ahmad Majzoub
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Urology, Hamad Medical Corporation, Doha, Qatar.,Department of Urology, Weill Cornell Medicine - Qatar, Doha, Qatar
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,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
| | | | - Nicholas Tadros
- Division of Urology, Southern Illinois University School of Medicine, Springfield, IL, USA
| | - Neel Parekh
- Department of Urology, Cleveland Clinic, Cleveland, OH, USA
| | - Edmund Y Ko
- Department of Urology, Loma Linda University, Loma Linda, CA, 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
| | - Mohamed Arafa
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Urology, Hamad Medical Corporation, Doha, Qatar.,Andrology Department, Cairo University, Giza, Egypt
| | - Marco G Alves
- Department of Anatomy & Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | | | - Juan G Alvarez
- Centro Androgen, La Coruña, Spain and Harvard Medical School, Boston, MA, USA
| | - Rupin Shah
- Department of Urology, Lilavati Hospital and Research Centre, Mumbai, India
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6
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Takeshima T, Usui K, Mori K, Asai T, Yasuda K, Kuroda S, Yumura Y. Oxidative stress and male infertility. Reprod Med Biol 2021; 20:41-52. [PMID: 33488282 PMCID: PMC7812476 DOI: 10.1002/rmb2.12353] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 09/19/2020] [Accepted: 09/28/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Between 30% and 80% of patients with male infertility produce excessive reactive oxygen species (ROS) in their ejaculate even though the cause of male infertility is unexplained in approximately half of cases. The strong connection between oxidative stress (OS) and male infertility has led recent investigators to propose the term "Male Oxidative Stress Infertility (MOSI)" to describe OS-associated male infertility. METHODS We searched the PubMed database for original and review articles to survey the effects of OS on male infertility, and then verified the effects and treatments. MAIN FINDINGS Seminal plasma contains many antioxidants that protect sperm from ROS, because low amounts of ROS are required in the physiological fertilization process. The production of excessive ROS causes OS which can lower fertility through lipid peroxidation, sperm DNA damage, and apoptosis. Several assays are available for evaluating OS, including the MiOXSYS® analyzer to measure oxidation-reduction potential. Several measures should be considered for minimizing OS and improving clinical outcomes. CONCLUSION Accurately diagnosing patients with MOSI and identifying highly sensitive biomarkers through proteomics technology is vital for better clinical outcomes.
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Affiliation(s)
- Teppei Takeshima
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
| | - Kimitsugu Usui
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
| | - Kohei Mori
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
| | - Takuo Asai
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
| | - Kengo Yasuda
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
| | - Shinnosuke Kuroda
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
| | - Yasushi Yumura
- Department of Urology, Reproduction CenterYokohama City University Medical CenterYokohama cityJapan
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7
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Karabulut S, Korkmaz O, Yılmaz E, Keskin I. Seminal oxidation-reduction potential as a possible indicator of impaired sperm parameters in Turkish population. Andrologia 2020; 53:e13956. [PMID: 33381879 DOI: 10.1111/and.13956] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 12/13/2020] [Accepted: 12/17/2020] [Indexed: 11/30/2022] Open
Abstract
Oxidative stress (OS) has been shown to have a key role in male infertility. Recently, a new measurement method has been developed to measure the overall oxidation-reduction potential (ORP) in a semen sample known as the MiOXSYS system. The aim of this study was to investigate the correlation of sperm parameters with oxidative stress levels determined by ORP and to evaluate whether the current limit is able to distinguish abnormal sperm parameters from normal ones in Turkish population. Semen samples of 121 patients who applied for infertility investigation were divided into two groups as (OS +; n:39) and (OS -; n:82). Semen parameters were compared between groups. Sperm concentration, total motility and progressive motility were found to be significantly lower in OS (+) patients compared to those OS (-), while immotile sperm count was significantly higher in OS (+) patients. Oxidative stress determined by MiOXSYS system was found to be related to reduced sperm parameters in Turkish population, which may be used as an indicator of poor sperm parameters and a support to routine semen analysis. In addition, recommended reference value was found to be reliable in distinguishing normal from impaired semen parameters.
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Affiliation(s)
- Seda Karabulut
- Department of Histology and Embryology, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
| | - Oya Korkmaz
- Department of Histology and Embryology, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
| | - Elif Yılmaz
- Medistate Hospital, IVF Center, Istanbul, Turkey
| | - Ilknur Keskin
- Department of Histology and Embryology, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
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Vassiliou A, Martin CH, Homa ST, Stone J, Dawkins A, Genkova MN, Skyla Dela Roca H, Parikh S, Patel J, Yap T, Killeen AP. Redox potential in human semen: Validation and qualification of the MiOX sys assay. Andrologia 2020; 53:e13938. [PMID: 33377541 DOI: 10.1111/and.13938] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/06/2020] [Accepted: 11/16/2020] [Indexed: 02/06/2023] Open
Abstract
Seminal oxidative stress (OS) is a major contributing factor to male infertility. Semen analysis cannot identify reactive oxygen species (ROS), which can be measured using a chemiluminescence assay. Measurement of redox potential provides a more comprehensive assessment of OS, although the test has yet to be fully validated. This study aimed to validate the MiOXsys analyser for measuring static oxidation-reduction potential (sORP). Results demonstrated that duplicate measurements must be taken, sensors must be batch tested, and sockets should be regularly changed to avoid inconsistency in measurement. Measurement of sORP using MiOXsys exhibited good reproducibility across different operators (p = 0.469), analysers (p = 0.963) and days (p = 0.942). It is not affected by mechanical agitation (p = 0.522) or snap freezing and thawing (p = 0.823). The stability of sORP over time requires further verification, particularly in samples with high initial sORP. Measurement is temperature sensitive between 2 and 37°C, significantly increasing with increasing temperature (p = 0.0004). MiOXsys is a more stable assay for assessing OS than chemiluminescence methods and permits greater flexibility for sample handling. MiOXsys could be implemented to complement semen analysis as part of routine diagnostic testing for male infertility and may be useful in identifying contributing factors to idiopathic infertility.
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Affiliation(s)
- Anna Vassiliou
- School of Biosciences, University of Kent, Canterbury, UK.,Andrology Solutions, London, UK
| | | | - Sheryl T Homa
- School of Biosciences, University of Kent, Canterbury, UK.,Andrology Solutions, London, UK.,Andrology Department, The Doctors Laboratory, London, UK
| | - Jesse Stone
- School of Biosciences, University of Kent, Canterbury, UK
| | - Andrew Dawkins
- Andrology Department, The Doctors Laboratory, London, UK
| | | | | | - Sejal Parikh
- Andrology Department, The Doctors Laboratory, London, UK
| | - Jinal Patel
- Andrology Department, The Doctors Laboratory, London, UK
| | - Tet Yap
- Department of Urology, Guy's and St Thomas's Hospital, London, UK
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9
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Garcia-Segura S, Ribas-Maynou J, Lara-Cerrillo S, Garcia-Peiró A, Castel AB, Benet J, Oliver-Bonet M. Relationship of Seminal Oxidation-Reduction Potential with Sperm DNA Integrity and pH in Idiopathic Infertile Patients. BIOLOGY 2020; 9:biology9090262. [PMID: 32882928 PMCID: PMC7564726 DOI: 10.3390/biology9090262] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/12/2020] [Accepted: 08/28/2020] [Indexed: 12/23/2022]
Abstract
Seminal oxidative stress (OS) is one of the most promising factors to describe the causes of idiopathic male infertility. Redox balance is essential in several biological processes related to fertility, so alterations such as high reactive oxygen species (ROS) levels or low antioxidant agent levels can compromise it. MiOXSYS has been developed to evaluate the seminal static oxidation-reduction potential (sORP) and it has been proposed as an effective diagnostic biomarker. However, its relationship with parameters like sperm DNA fragmentation (SDF), chromatin compaction status or seminal pH requires further analysis, making it the object of this study. Semen and sORP analysis were performed for all samples. A terminal deoxynucleotidyl transferase dUTP nick end labeling assay (TUNEL) and Comet assay were used to assess SDF and chromomycin a3 (CMA3) test to assess sperm chromatin compaction. Regarding sORP measures, it was found that alkaline pH has an effect on sample reproducibility. To our knowledge, this unexpected effect has not been previously described. A statistical analysis showed that sORP correlated negatively with CMA3 positive cells and sperm motility, but not with SDF. As redox dysregulation, which occurs mainly at the testicular and epididymal level, causes chromatin compaction problems and leaves DNA exposed to damage, an excess of ROS could be counterbalanced further by a seminal supply of antioxidant molecules, explaining the negative correlation with CMA3 positive cells but no correlation with SDF. Our results show that the study of idiopathic infertility would benefit from a combined approach comprising OS analysis, SDF and chromatin compaction analysis.
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Affiliation(s)
- Sergio Garcia-Segura
- Unit of Cell Biology and Medical Genetics, Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Av. Can Domenech s/n, Bellaterra, 08193 Catalunya, Spain;
- Correspondence: (S.G.-S.); (J.B.); (M.O.-B.)
| | - Jordi Ribas-Maynou
- Unit of Cell Biology and Medical Genetics, Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Av. Can Domenech s/n, Bellaterra, 08193 Catalunya, Spain;
| | - Sandra Lara-Cerrillo
- CIMAB, Barcelona Male Infertility Centre, C. Vallcorba 1-3, Sant Quirze del Vallès, 08192 Catalunya, Spain; (S.L.-C.); (A.G.-P.)
| | - Agustín Garcia-Peiró
- CIMAB, Barcelona Male Infertility Centre, C. Vallcorba 1-3, Sant Quirze del Vallès, 08192 Catalunya, Spain; (S.L.-C.); (A.G.-P.)
| | - Ana Belén Castel
- Instituto de Fertilidad, C. Calçat 6, 07011 Palma Mallorca, Spain;
| | - Jordi Benet
- Unit of Cell Biology and Medical Genetics, Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Av. Can Domenech s/n, Bellaterra, 08193 Catalunya, Spain;
- Correspondence: (S.G.-S.); (J.B.); (M.O.-B.)
| | - Maria Oliver-Bonet
- Unit of Cell Biology and Medical Genetics, Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Av. Can Domenech s/n, Bellaterra, 08193 Catalunya, Spain;
- Genosalut, Camí dels Reis 308, 07010 Palma Mallorca, Spain
- Correspondence: (S.G.-S.); (J.B.); (M.O.-B.)
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10
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Agarwal A, Baskaran S, Panner Selvam MK, Finelli R, Barbarosie C, Robert KA, Iovine C, Master K, Henkel R. Scientific landscape of oxidative stress in male reproductive research: A scientometric study. Free Radic Biol Med 2020; 156:36-44. [PMID: 32439384 DOI: 10.1016/j.freeradbiomed.2020.05.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/21/2020] [Accepted: 05/11/2020] [Indexed: 12/13/2022]
Abstract
Unraveling the role of reactive oxygen species and associated oxidative stress (OS) in male reproduction is one of the key areas of male reproductive research. This article illustrates the scientific landscape of OS in male reproductive research over the past several decades (1941-2018) using a scientometric approach. Scientometric data (articles per year, authors, affiliations, journals, and countries) on OS related to male reproduction were retrieved from the Scopus database and analyzed for each decade. Our analysis revealed an increasing trend in OS-based male reproductive research from 1941 to 2018 with a steep raise in publications and research collaborations starting from the period 1991-2000 (R2 = 0.81). Semen abnormalities and varicocele were the major areas investigated in relation to OS with the highest positive trend in publications from the time interval 1981-1990 to 2011-2018. Analysis of publications based on OS assessment techniques revealed chemiluminescence (n = 180) and evaluation of antioxidants (n = 300) as the most widely used direct and indirect tests, respectively. Furthermore, prognostic/diagnostic studies on OS evaluation increased significantly over the time. Our analysis highlights the evolution of OS in male reproductive research and its emergence as an important prognostic and diagnostic tool in the evaluation of male infertility.
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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
| | | | - Renata Finelli
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Catalina Barbarosie
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA; Department of Genetics, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Kathy Amy Robert
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Concetta Iovine
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Kruyanshi Master
- 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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11
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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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12
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Panner Selvam MK, Agarwal A, Henkel R, Finelli R, Robert KA, Iovine C, Baskaran S. The effect of oxidative and reductive stress on semen parameters and functions of physiologically normal human spermatozoa. Free Radic Biol Med 2020; 152:375-385. [PMID: 32165282 DOI: 10.1016/j.freeradbiomed.2020.03.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/02/2020] [Accepted: 03/07/2020] [Indexed: 12/15/2022]
Abstract
Both oxidative stress (OS) and reductive stress (RS) are the two extreme facets of redox imbalance that can have deleterious effects on sperm function. However, there is a lack of information on the physiological range of oxidation-reduction potential (ORP). The aim of this study was to investigate the effect of OS and RS on functions and associated molecular changes in normal spermatozoa in order to establish the physiological range of ORP. In the current study, total and progressive motility remained unchanged in spermatozoa exposed to ORP values 0.33 and 0.72 mV/106 sperm/mL. However, a significant (P < 0.05) decline in total and progressive motility were observed at ORP values 1.48, 2.75, -11.24, -9.76 and -9.35 mV/106 sperm/mL. Sperm vitality also decreased significantly (P < 0.0001) at 2.75, -11.24 and -9.76 mV/106 sperm/mL. Spermatozoa exposed to ORP levels 2.75 and -11.24 mV/106 sperm/mL showed a significant (P < 0.01) decrease in mitochondrial membrane potential. Intracellular reactive oxygen species (iROS) production increased (P < 0.05) in spermatozoa exposed to ORP levels of 1.48 and 2.75 mV/106 sperm/mL, while iROS decreased (P < 0.05) at ORP levels -9.76 and -11.24 mV/106 sperm/mL. No significant change in sperm DNA fragmentation was noted in sperm exposed to OS/RS and the values were below the reference range (<19.25%). Western blot analysis revealed decreased expression of CV-ATPA, CIII-UQCRC2 and CIV-MTCO1 proteins at 60 and 120 min (P < 0.05) in both OS and RS conditions. This is the first study to report physiological range of ORP (between -9.76 and 1.48 mV/106 sperm/mL) and to elucidate the role of altered expression of oxidative phosphorylation (OXPHOS) complexes proteins in mediating detrimental effects of oxidative and reductive conditions on sperm functions. A decreased expression of OXPHOS proteins and associated mitochondrial dysfunction contributes to decreased sperm motility and vitality under oxidative and reductive stress.
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Affiliation(s)
| | - 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
| | - Renata Finelli
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Kathy Amy Robert
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Concetta Iovine
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA; Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy
| | - Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
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13
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Arafa M, Henkel R, Agarwal A, Robert K, Finelli R, Majzoub A, ElBardisi H. Seminal oxidation-reduction potential levels are not influenced by the presence of leucocytospermia. Andrologia 2020; 52:e13609. [PMID: 32400005 DOI: 10.1111/and.13609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/27/2020] [Accepted: 03/31/2020] [Indexed: 01/09/2023] Open
Abstract
Oxidative stress (OS) is characterised by an excessive amount of reactive oxygen species (ROS) which negatively affect sperm functions. In this study, the influence of leucocytes on seminal oxidation-reduction potential (ORP) and sperm DNA fragmentation (SDF) was investigated in 1,068 men. Seminal leucocyte concentration did not correlate with SDF, unadjusted ORP, ORP normalised for sperm concentration (sORP), ORP normalised for total motile sperm concentration (motORP) or total motile sperm count (TMSC-ORP). Although receiver operator characteristic (ROC) curve analyses show that leucocytospermia does not predict high sORP values (>1.34 mV/106 spermatozoa/ml), the motORP (AUC: 0.666) and TMSC-ORP (AUC: 0.683) predict the rate of leucocytospermia significantly (p = .0195 and p = .0085 respectively). Moreover, SDF can significantly predict leucocytospermia (AUC: 0.679; p = .011) and vice versa (AUC: 0.657, p = .0298). Our data confirm the association between OS and SDF. In conclusion, motORP and TMSC-ORP may be better predictive factors of leucocytospermia, probably because sperm motility, included in motORP and TMSC-ORP calculation, is the first seminal parameter to be affected by OS. Although all these parameters are indicative of OS, ORP values, SDF and leucocytospermia should be considered independently for the evaluation of redox seminal status, as they probe distinct seminal features.
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Affiliation(s)
- Mohamed Arafa
- Male Infertility Unit, Urology Department, Hamad General Hospital, Doha, Qatar.,Urology Department, Weill Cornell Medical-Qatar, Doha, Qatar.,American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Andrology Department, Cairo University, Cairo, Egypt
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Kathy Robert
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Renata Finelli
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ahmad Majzoub
- Male Infertility Unit, Urology Department, Hamad General Hospital, Doha, Qatar.,Urology Department, Weill Cornell Medical-Qatar, Doha, Qatar.,American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Haitham ElBardisi
- Male Infertility Unit, Urology Department, Hamad General Hospital, Doha, Qatar.,Urology Department, Weill Cornell Medical-Qatar, Doha, Qatar
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14
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Panner Selvam MK, Finelli R, Agarwal A, Henkel R. Evaluation of seminal oxidation-reduction potential in male infertility. Andrologia 2020; 53:e13610. [PMID: 32399973 DOI: 10.1111/and.13610] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/26/2020] [Accepted: 03/31/2020] [Indexed: 12/28/2022] Open
Abstract
The role of oxidative stress in male infertility has been broadly recognised, and the search for a new marker to determine the redox environment in semen has gained considerable interest. Oxidation-reduction potential (ORP) or redox potential, is a measure of the electron transfer from antioxidants to oxidants and provides information on the redox balance. In this review, the benefits of ORP as a new oxidative stress marker, the protocol for its evaluation and the importance of its measurement in the context of male infertility are discussed. In association with the standard semen analysis, seminal ORP has been analysed to evaluate semen quality and male fertility status. However, further studies are required to establish its use in assisted reproductive techniques (ART) practice.
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Affiliation(s)
| | - Renata Finelli
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - 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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15
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Swain N, Samanta L, Agarwal A, Kumar S, Dixit A, Gopalan B, Durairajanayagam D, Sharma R, Pushparaj PN, Baskaran S. Aberrant Upregulation of Compensatory Redox Molecular Machines May Contribute to Sperm Dysfunction in Infertile Men with Unilateral Varicocele: A Proteomic Insight. Antioxid Redox Signal 2020; 32:504-521. [PMID: 31691576 DOI: 10.1089/ars.2019.7828] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Aims: To understand the molecular pathways involved in oxidative stress (OS)-mediated sperm dysfunction against a hypoxic and hyperthermic microenvironment backdrop of varicocele through a proteomic approach. Results: Protein selection (261) based on their role in redox homeostasis and/or oxidative/hyperthermic/hypoxic stress response from the sperm proteome data set of unilateral varicocele (UV) in comparison with fertile control displayed 85 to be differentially expressed. Upregulation of cellular oxidant detoxification and glutathione and reduced nicotinamide adenine dinucleotide (NADH) metabolism accompanied with downregulation of protein folding, energy metabolism, and heat stress responses were observed in the UV group. Ingenuity pathway analysis (IPA) predicted suppression of oxidative phosphorylation (OXPHOS) (validated by Western blotting [WB]) along with augmentation in OS and mitochondrial dysfunction in UV. The top affected networks indicated by IPA involved heat shock proteins (HSPs: HSPA2 and HSP90B1). Their expression profile was corroborated by immunocytochemistry and WB. Hypoxia-inducible factor 1A as an upstream regulator of HSPs was predicted by MetaCore. Occurrence of reductive stress in UV spermatozoa was corroborated by thiol redox status. Innovation: This is the first evidence of a novel pathway showing aberrant redox homeostasis against chronic hypoxic insult in varicocele leading to sperm dysfunction. Conclusions: Upregulation of antioxidant system and dysfunctional OXPHOS would have shifted the redox balance of biological redox couples (GSH/GSSG, NAD+/NADH, and NADP+/NADPH) to a more reducing state leading to reductive stress. Chronic reductive stress-induced OS may be involved in sperm dysfunction in infertile men with UV, where the role of HSPs cannot be ignored. Intervention with antioxidant therapy warrants proper prior investigation.
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Affiliation(s)
- Nirlipta Swain
- Redox Biology Laboratory, Department of Zoology, School of Life Sciences, Ravenshaw University, Odisha, India.,American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, Ohio
| | - Luna Samanta
- Redox Biology Laboratory, Department of Zoology, School of Life Sciences, Ravenshaw University, Odisha, India.,American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, Ohio.,Centre for Excellence in Environment and Public Health, Ravenshaw University, Odisha, India
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, Ohio
| | - Sugandh Kumar
- Computational Biology and Bioinformatics Laboratory, Institute of Life Sciences, Bhubaneswar, Odisha, India.,School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
| | - Anshuman Dixit
- Computational Biology and Bioinformatics Laboratory, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | | | | | - Rakesh Sharma
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, Ohio
| | - Peter N Pushparaj
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, Ohio
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16
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Arafa M, Agarwal A, Majzoub A, Panner Selvam MK, Baskaran S, Henkel R, Elbardisi H. Efficacy of Antioxidant Supplementation on Conventional and Advanced Sperm Function Tests in Patients with Idiopathic Male Infertility. Antioxidants (Basel) 2020; 9:E219. [PMID: 32155908 PMCID: PMC7139646 DOI: 10.3390/antiox9030219] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/23/2020] [Accepted: 03/02/2020] [Indexed: 12/20/2022] Open
Abstract
Antioxidants are used in the empirical treatment of infertile men. The aim of this study was to evaluate the effects of antioxidant therapy on conventional semen parameters and advanced sperm function tests in men seeking fertility treatment. A total of 148 infertile men of unknown etiology were divided into idiopathic (n = 119) and unexplained male infertility (UMI; n = 29). All participants were treated with the antioxidant supplement 'FH PRO for Men' for a period of three months. Compared with pretreatment results, there was a significant improvement in conventional semen parameters including sperm concentration, total and progressive motility and normal morphology, and seminal oxidation reduction potential (ORP), and sperm DNA fragmentation (SDF) in idiopathic infertile men. The changes were more prominent in idiopathic infertile men positive for ORP and SDF. UMI patients showed an improvement in progressive motility, ORP, and SDF after antioxidant treatment. Statistical analysis revealed that the efficacy of FH PRO for Men was significant in idiopathic male infertility compared with UMI. Treatment of idiopathic male infertility patients with the FH PRO for Men antioxidant regimen for three months resulted in a significant improvement in conventional semen parameters and sperm function. Therefore, FH PRO for Men offers promise for the medical treatment of idiopathic male infertility.
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Affiliation(s)
- Mohamed Arafa
- Male Infertility Unit, Urology Department, Hamad General Hospital, 00974 Doha, Qatar; (A.M.); (H.E.)
- Urology Department, Weill Cornell Medical-Qatar, 00974 Doha, Qatar
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; (A.A.); (M.K.P.S.); (S.B.); (R.H.)
- Andrology Department, Cairo University, 11562 Cairo, Egypt
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; (A.A.); (M.K.P.S.); (S.B.); (R.H.)
| | - Ahmad Majzoub
- Male Infertility Unit, Urology Department, Hamad General Hospital, 00974 Doha, Qatar; (A.M.); (H.E.)
- Urology Department, Weill Cornell Medical-Qatar, 00974 Doha, Qatar
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; (A.A.); (M.K.P.S.); (S.B.); (R.H.)
| | - Manesh Kumar Panner Selvam
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; (A.A.); (M.K.P.S.); (S.B.); (R.H.)
| | - Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; (A.A.); (M.K.P.S.); (S.B.); (R.H.)
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; (A.A.); (M.K.P.S.); (S.B.); (R.H.)
- Department of Medical Bioscience, University of the Western Cape, 7535 Bellville, South Africa
| | - Haitham Elbardisi
- Male Infertility Unit, Urology Department, Hamad General Hospital, 00974 Doha, Qatar; (A.M.); (H.E.)
- Urology Department, Weill Cornell Medical-Qatar, 00974 Doha, Qatar
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17
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Aitken RJ, Drevet JR. The Importance of Oxidative Stress in Determining the Functionality of Mammalian Spermatozoa: A Two-Edged Sword. Antioxidants (Basel) 2020; 9:antiox9020111. [PMID: 32012712 PMCID: PMC7070991 DOI: 10.3390/antiox9020111] [Citation(s) in RCA: 118] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 12/31/2022] Open
Abstract
This article addresses the importance of oxidative processes in both the generation of functional gametes and the aetiology of defective sperm function. Functionally, sperm capacitation is recognized as a redox-regulated process, wherein a low level of reactive oxygen species (ROS) generation is intimately involved in driving such events as the stimulation of tyrosine phosphorylation, the facilitation of cholesterol efflux and the promotion of cAMP generation. However, the continuous generation of ROS ultimately creates problems for spermatozoa because their unique physical architecture and unusual biochemical composition means that they are vulnerable to oxidative stress. As a consequence, they are heavily dependent on the antioxidant protection afforded by the fluids in the male and female reproductive tracts and, during the precarious process of insemination, seminal plasma. If this antioxidant protection should be compromised for any reason, then the spermatozoa experience pathological oxidative damage. In addition, situations may prevail that cause the spermatozoa to become exposed to high levels of ROS emanating either from other cells in the immediate vicinity (particularly neutrophils) or from the spermatozoa themselves. The environmental and lifestyle factors that promote ROS generation by the spermatozoa are reviewed in this article, as are the techniques that might be used in a diagnostic context to identify patients whose reproductive capacity is under oxidative threat. Understanding the strengths and weaknesses of ROS-monitoring methodologies is critical if we are to effectively identify those patients for whom treatment with antioxidants might be considered a rational management strategy.
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Affiliation(s)
- Robert J. Aitken
- Priority Research Centre for Reproductive Sciences, Faculty of Science and Faculty of Health and Medicine, The University of Newcastle, Callaghan, NSW 2308, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW, 2305, Australia
- Correspondence:
| | - Joel R. Drevet
- GReD Institute, INSERM U1103—CNRS UMR6293—Université Clermont Auvergne, Faculty of Medicine, CRBC building, 28 place Henri Dunant, 63001 Clermont-Ferrand, France;
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18
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Tanaka T, Kobori Y, Terai K, Inoue Y, Osaka A, Yoshikawa N, Shimomura Y, Suzuki K, Minami T, Iwahata T, Onota S, Yamamoto A, Sugimoto K, Okada H. Seminal oxidation-reduction potential and sperm DNA fragmentation index increase among infertile men with varicocele. HUM FERTIL 2020; 25:142-146. [PMID: 31955637 DOI: 10.1080/14647273.2020.1712747] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Varicocele is a common cause of male infertility. It is reported that low sperm concentration, motility and morphology are indicative of increased sperm DNA fragmentation index (DFI) in men with varicocele. Although research has been conducted into the relationship between varicocele and DFI, little is known about seminal oxidation-reduction potential (ORP) in varicocele patients. We assessed the relationship between varicocele with seminal ORP and sperm DFI in both fertile and infertile men. This prospective case-control study compared the findings from infertile men with varicocele to those of men with normal spermatogenesis without varicocele. Semen samples were collected and assessed using the WHO (2010) guidelines. ORP was measured (mV) and normalized to sperm concentration (mV/106 sperm/mL). DFI was measured using the sperm chromatin structure assay (SCSA) method. For group comparisons, only samples with a concentration >1 × 106 sperm/mL were included. Infertile men with varicocele had significantly lower mean sperm concentration, motility and total sperm count. Conversely, infertile men with varicocele had a significantly higher mean serum FSH level, and higher ORP and DFI values than fertile controls. ORP was higher in patients with varicocele and positively correlated with DFI (p < 0.01). ORP and DFI showed significant negative correlations with semen parameters (sperm concentration, motility and total sperm count) in infertile men with a varicocele.
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Affiliation(s)
- Takashi Tanaka
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Yoshitomo Kobori
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Kazutaka Terai
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Yasuyuki Inoue
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Akiyoshi Osaka
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Naoki Yoshikawa
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Yukihito Shimomura
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Keisuke Suzuki
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Tetsuji Minami
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Toshiyuki Iwahata
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Shin Onota
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Atsushi Yamamoto
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Kouhei Sugimoto
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Hiroshi Okada
- Department of Reproduction Center, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
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19
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Martins AD, Agarwal A. Oxidation reduction potential: a new biomarker of male infertility. Panminerva Med 2019; 61:108-117. [PMID: 30990283 DOI: 10.23736/s0031-0808.18.03529-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Oxidative stress is considered a major etiology for male infertility, more specifically idiopathic infertility. The causes of seminal oxidative stress can be intrinsic, such as varicocele or due to the presence of active leukocytes and immature germ cells. Reported external causes are smoking, alcohol or exposure to environmental toxins. Traditional methods to determine the seminal oxidative stress do not evaluate this status directly, but rather measure its components or intermediate products indirectly, instead. The major disadvantages of the traditional methods are related with time and cost as these methods are extremely time consuming and require expensive equipment, consumables and highly skilled laboratory personnel. To overcome these drawbacks, the MiOXSYS® system, a method which directly measures the oxidation-reduction potential (ORP), was developed. The evaluation of the ORP using MiOXSYS® is cost-effective, easy and quick. However, this newly introduced method to evaluate the oxidative status of semen still requires validation in different andrology laboratory settings across the world.
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Affiliation(s)
- Ana D Martins
- American Center for Reproductive Medicine, Department of Urology, Cleveland Clinic, Cleveland, OH, USA.,Department of Microscopy, Laboratory of Cell Biology, Abel Salazar Institute of Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal.,Unit for Multidisciplinary Research in Biomedicine, Abel Salazar Institute of Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Department of Urology, Cleveland Clinic, Cleveland, OH, USA -
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20
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Roychoudhury S, Saha MR, Saha MM. Environmental Toxicants and Male Reproductive Toxicity: Oxidation-Reduction Potential as a New Marker of Oxidative Stress in Infertile Men. NETWORKING OF MUTAGENS IN ENVIRONMENTAL TOXICOLOGY 2019. [DOI: 10.1007/978-3-319-96511-6_5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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21
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Darbandi M, Darbandi S, Agarwal A, Baskaran S, Sengupta P, Dutta S, Mokarram P, Saliminejad K, Sadeghi MR. Oxidative stress-induced alterations in seminal plasma antioxidants: Is there any association with keap1 gene methylation in human spermatozoa? Andrologia 2018; 51:e13159. [PMID: 30298637 DOI: 10.1111/and.13159] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 08/17/2018] [Accepted: 08/21/2018] [Indexed: 12/22/2022] Open
Abstract
Kelch-like ECH-associated protein 1 (keap1)-nuclear factor-erythroid 2-related factor 2 (Nrf2) pathway is one of the master regulators of cellular defence against oxidative stress. Epigenetic alterations like hypermethylation of keap1 gene impair keap1-Nrf2 system in several oxidative stress-associated diseases. The objective of this study was to evaluate the epigenetic status of keap1 in sperm DNA of normozoospermic subjects, having different levels of reactive oxygen species (ROS) in seminal plasma. Semen samples were obtained from 151 apparently healthy male partners of couples who attended the Avicenna infertility clinic. Samples were categorised into four groups according to their ROS levels: group A (n = 39, ROS < 20 RLU/s per 106 spermatozoa), group B (n = 38, 20 ≤ ROS < 40 RLU/s per 106 spermatozoa), group C (n = 31, 40 ≤ ROS < 60 RLU/s per 106 spermatozoa) and group D; (n = 43, ROS ≥ 60 RLU/s per 106 spermatozoa). Keap1 methylation status was assessed using methylation-specific PCR along with seminal total antioxidant capacity. The results showed no significant alterations in keap1 methylation in any groups, whereas the total antioxidant capacity enhanced with increasing levels of ROS exposure. These results indicate that keap1 was not methylated during ROS elevation and oxidative stress, suggesting that the cells have adopted other mechanisms to elevate antioxidant level.
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Affiliation(s)
- Mahsa Darbandi
- Department of Embryology and Andrology, Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Sara Darbandi
- Department of Embryology and Andrology, Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, Ohio
| | - Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, Ohio
| | - Pallav Sengupta
- Department of Physiology, Faculty of Medicine, MAHSA University, Jenjarom, Malaysia
| | - Sulagna Dutta
- Faculty of Dentistry, MAHSA University, Jenjarom, Malaysia
| | - Pooneh Mokarram
- Department of Biochemistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Kioomars Saliminejad
- Department of Embryology and Andrology, Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Mohammad Reza Sadeghi
- Monoclonal Antibody Research Center, Avicenna Research Institute (ARI), ACECR, Tehran, Iran
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Agarwal A, Bui AD. Oxidation-reduction potential as a new marker for oxidative stress: Correlation to male infertility. Investig Clin Urol 2017; 58:385-399. [PMID: 29124237 PMCID: PMC5671957 DOI: 10.4111/icu.2017.58.6.385] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 10/15/2017] [Indexed: 01/08/2023] Open
Abstract
Male infertility affects men worldwide. Oxidative stress (OS), characterized by an overabundance of reactive oxygen species (ROS) or a deficiency of antioxidants, is one of the major causes of male infertility. OS causes damage at the molecular level, which impairs lipids, proteins, and DNA. The cyclic cascade of redox reactions weakens sperm function which leads to poor semen parameters and eventual sterility. There is a need for advanced diagnostic tests that can quickly and accurately detect OS. Most commonly used assays can only measure single constituents of OS. However, the MiOXSYS System introduces a new strategy to detect OS by measuring the oxidation-reduction potential (ORP)--a direct evaluation of the redox balance between ROS and antioxidants. The MiOXSYS System has shown promise as a diagnostic tool in the evaluation of male infertility. This review explores the concept of ORP, details the principle of the MiOXSYS System, and summarizes the findings in clinical studies that support ORP measurement in semen.
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Affiliation(s)
- Ashok Agarwal
- American Center for Reproductive Medicine, Department of Urology, Cleveland Clinic, Cleveland, OH, USA
| | - Albert Danh Bui
- American Center for Reproductive Medicine, Department of Urology, Cleveland Clinic, Cleveland, OH, USA.,Ohio University Heritage College of Osteopathic Medicine, Athens, OH, USA
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