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Li G, Xu S, Messerlian C, Zhang Y, Chen YJ, Sun Y, Mustieles V, Wang Y, Pan A, Liu C, Wang YX. Blood trihalomethane and urinary haloacetic acid concentrations in relation to hypertension: An observational study among 1162 healthy men. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135411. [PMID: 39111173 DOI: 10.1016/j.jhazmat.2024.135411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 07/15/2024] [Accepted: 08/01/2024] [Indexed: 08/17/2024]
Abstract
Disinfection byproducts (DBPs) have demonstrated cardiovascular and reproductive toxicity. However, the associations and mechanisms of DBP exposure in relation to hypertension among healthy young men, which are critical for gaining new insights into the prevention and treatment of male subfertility, remain unclear. In 2017-2018, we recruited 1162 healthy Chinese men. A single blood sample was collected and measured for trihalomethane (THM) concentrations (n = 956). Up to 2930 repeated urinary samples were collected at baseline and during follow-up periods and determined for haloacetic acid concentrations. Oxidative stress (OS) biomarkers were measured in within-subject pooled urinary samples (n = 1003). In total, 403 (34.68 %) participants were diagnosed with stage 1-2 hypertension (≥130/80 mmHg) and 108 (9.29 %) stage 2 hypertension (≥140/90 mmHg). In adjusted models, blood bromodichloromethane (BDCM) concentrations were positively associated with the risk of stage 1-2 and stage 2 hypertension [ORs= 1.48 (95 % CI: 1.15, 1. 91) and 1.65 (95 % CI: 1.08, 2.51), respectively, per 2.7-fold increase in BDCM concentrations]. Additionally, we found positive associations between DBP exposure biomarkers and urinary concentrations of 4-hydroxy-2-nonenal-mercapturic acid and 8-hydroxy-2-deoxyguanosine. However, these OS biomarkers were unrelated to hypertension. Our results suggest that BDCM exposure may be associated with a greater risk of hypertension among healthy young men.
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Affiliation(s)
- Guangming Li
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Shiyu Xu
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Carmen Messerlian
- Departments of Environmental Health and Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, United States
| | - Yu Zhang
- Departments of Environmental Health and Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, United States
| | - Ying-Jun Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, Guangdong 510006, China
| | - Yang Sun
- Department of Otolaryngology-Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Vicente Mustieles
- Instituto de Investigación Biosanitaria ibs.GRANADA, Spain. University of Granada, Center for Biomedical Research (CIBM), Spain. Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 18010 Granada, Spain
| | - Yi Wang
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY 10461, United States
| | - An Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Chong Liu
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
| | - Yi-Xin Wang
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
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Gül M, Russo GI, Kandil H, Boitrelle F, Saleh R, Chung E, Kavoussi P, Mostafa T, Shah R, Agarwal A. Male Infertility: New Developments, Current Challenges, and Future Directions. World J Mens Health 2024; 42:502-517. [PMID: 38164030 PMCID: PMC11216957 DOI: 10.5534/wjmh.230232] [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: 08/16/2023] [Accepted: 08/27/2023] [Indexed: 01/03/2024] Open
Abstract
There have been many significant scientific advances in the diagnostics and treatment modalities in the field of male infertility in recent decades. Examples of these include assisted reproductive technologies, sperm selection techniques for intracytoplasmic sperm injection, surgical procedures for sperm retrieval, and novel tests of sperm function. However, there is certainly a need for new developments in this field. In this review, we discuss advances in the management of male infertility, such as seminal oxidative stress testing, sperm DNA fragmentation testing, genetic and epigenetic tests, genetic manipulations, artificial intelligence, personalized medicine, and telemedicine. The role of the reproductive urologist will continue to expand in future years to address different topzics related to diverse questions and controversies of pathophysiology, diagnosis, and therapy of male infertility, training researchers and physicians in medical and scientific research in reproductive urology/andrology, and further development of andrology as an independent specialty.
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Affiliation(s)
- Murat Gül
- Department of Urology, Selcuk University School of Medicine, Konya, Turkey
- Global Andrology Forum, Moreland Hills, OH, USA
| | - Giorgio Ivan Russo
- Urology Section, University of Catania, Catania, Italy
- Global Andrology Forum, Moreland Hills, OH, USA
| | - Hussein Kandil
- Fakih IVF Fertility Center, Abu Dhabi, UAE
- Global Andrology Forum, Moreland Hills, OH, USA
| | - Florence Boitrelle
- Reproductive Biology, Fertility Preservation, Andrology, CECOS, Poissy Hospital, Poissy, France
- Paris Saclay University, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- Global Andrology Forum, Moreland Hills, OH, USA
| | - Ramadan Saleh
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Sohag University, Sohag, Egypt
- Ajyal IVF Center, Ajyal Hospital, Sohag, Egypt
- Global Andrology Forum, Moreland Hills, OH, USA
| | - Eric Chung
- Department of Urology, Princess Alexandra Hospital, University of Queensland, Brisbane, QLD, Australia
- Global Andrology Forum, Moreland Hills, OH, USA
| | - Parviz Kavoussi
- Department of Reproductive Urology, Austin Fertility & Reproductive Medicine/Westlake IVF, Austin, TX, USA
- Global Andrology Forum, Moreland Hills, OH, USA
| | - Taymour Mostafa
- Department of Andrology, Sexology and STIs, Faculty of Medicine, Cairo University, Cairo, Egypt
- Global Andrology Forum, Moreland Hills, OH, USA
| | - Rupin Shah
- Department of Urology, Lilavati Hospital and Research Centre, Mumbai, India
- Well Women's Centre, Sir HN Reliance Foundation Hospital, Mumbai, India
- Global Andrology Forum, Moreland Hills, OH, USA
| | - Ashok Agarwal
- Global Andrology Forum, Moreland Hills, OH, USA
- Cleveland Clinic, Cleveland, OH, USA.
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3
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Mulya IC, Hasan MA, Iqhrammullah M. Impact of metabolic syndrome factors on sperm DNA fragmentation in males from infertile couples: A systematic review and meta-analysis. J Gynecol Obstet Hum Reprod 2024; 53:102807. [PMID: 38825166 DOI: 10.1016/j.jogoh.2024.102807] [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: 02/16/2024] [Revised: 04/22/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
PURPOSE To investigate the impact of metabolic syndrome factors on sperm DNA fragmentation (sDF) in males from infertile couples. METHODS A systematic literature search was performed across ten databases for literature published from January 1, 2013 until September 13, 2023. The protocol has been registered on PROSPERO (CRD42023458359), and the literature search strategy is adhered to the PRISMA framework. Studies that evaluated sDF, as indicated by DNA fragmentation index (%DFI), in males from infertile couples in relation to metabolic syndrome factors were included. Meta-analysis, using random effects model and Bayesian framework network, was performed, and data were presented as Standardized Mean Differences (SMD) with corresponding 95 % Confidence Interval (CI). RESULTS Of the 2579 citations identified, eleven studies were included in this meta-analysis. The findings revealed that the %DFI was not associated with overall metabolic syndrome factors (p-tot = 0.235; SMD = 0.57 [95 %CI: -0.37, 1.52]), metabolic syndrome status (p-tot = 0.337; SMD = 0.08 [95 %CI: -0.08, 0.24), increased body mass index (p-tot = 0.237; SMD = 0.71 [95 %CI: -0.47, 1.89]), or glycaemic profile (p-tot = 0.93; SMD = 0.13 [95 %CI: -2.72, 2.98]). High levels of heterogeneity were observed (p < 0.01) in all subgroups, except for metabolic syndrome status. CONCLUSION The association between metabolic syndrome factors and sDF is conflicting. However, interpreting the association requires caution, as confounding factors, indicated by high heterogeneity, may conceal the outcome. Metabolic syndrome may influence other factors contributing to male infertility, highlighting the importance of promoting a healthy lifestyle.
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Affiliation(s)
- Intan Chaharunia Mulya
- Education Program in Reproduction & Development, Department of Obstetrics and Gynaecology, Monash University, Melbourne, Victoria 3168, Australia.
| | | | - Muhammad Iqhrammullah
- Postgraduate Program of Public Health, Universitas Muhammadiyah Aceh, Banda Aceh 23245, Indonesia
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Lyons HE, Gyawali P, Mathews N, Castleton P, Mutuku SM, McPherson NO. The influence of lifestyle and biological factors on semen variability. J Assist Reprod Genet 2024; 41:1097-1109. [PMID: 38294621 PMCID: PMC11052966 DOI: 10.1007/s10815-024-03030-y] [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] [Accepted: 01/11/2024] [Indexed: 02/01/2024] Open
Abstract
PURPOSE Semen parameters are subjected to within-individual variability over time. The driving factors for this variability are likely multi-factorial, with healthier lifestyle associated with better semen quality. The extent in which variations in individual's lifestyle contributes to within-individual semen variability is unknown. METHODS A total of 116 repeat semen samples from 29 men aged 19-37 over 6 months were collected. Basic semen analysis as per 5th WHO manual and extended semen parameters (sperm DNA fragmentation, redox potential and lipid peroxidation, sperm binding to hyaluronan and hyperactive motility) were assessed. An additional 39 lifestyle/biological factors (weight, blood pressure, etc.) were collected at each sample including validated health questionnaires SF36 Health Status, Australian Recommend Food Score, and International Physical Activity Questionnaire. RESULTS Only 10 out of the 39 lifestyle factors varied within men across samples including age (P = 0.0024), systolic blood pressure (P = 0.0080), social functioning (P = 0.0340), energy (P = 0.0069), non-alcoholic caffeinated beverages (P = 0.0010), and nutrition (P < 0.0001). The only semen parameter that varied between collections was sperm morphology (coefficient of variation 23.8 (6.1-72.0), P < 0.05). We only observed weak (r < 0.3) to moderate (r > 0.3- < 0.6) correlations between lifestyle factors, including body mass index, waist circumference, nutrition, exercise, blood pressure and semen parameters including sperm count, progressive motility, and sperm DNA fragmentation (P < 0.05). CONCLUSION In healthy men from the general population, semen quality and associated lifestyle factors do not significantly vary over 6 months, indicating that one semen sample is likely sufficient for determining male fertility in this population.
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Affiliation(s)
- Hannah E Lyons
- Robinson Research Institute, The University of Adelaide, Adelaide, SA, 5005, Australia
- Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, SA, 5005, Australia
- Discipline of Reproduction and Development, School of Biomedicine, Adelaide Medical School, The University of Adelaide, Level 5, Adelaide Health and Medical Sciences Building, Adelaide, SA, 5000, Australia
| | - Prabin Gyawali
- Robinson Research Institute, The University of Adelaide, Adelaide, SA, 5005, Australia
- Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, SA, 5005, Australia
- Discipline of Reproduction and Development, School of Biomedicine, Adelaide Medical School, The University of Adelaide, Level 5, Adelaide Health and Medical Sciences Building, Adelaide, SA, 5000, Australia
| | - Nicola Mathews
- Robinson Research Institute, The University of Adelaide, Adelaide, SA, 5005, Australia
- Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, SA, 5005, Australia
- Discipline of Reproduction and Development, School of Biomedicine, Adelaide Medical School, The University of Adelaide, Level 5, Adelaide Health and Medical Sciences Building, Adelaide, SA, 5000, Australia
| | - Patience Castleton
- Robinson Research Institute, The University of Adelaide, Adelaide, SA, 5005, Australia
- Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, SA, 5005, Australia
- Discipline of Reproduction and Development, School of Biomedicine, Adelaide Medical School, The University of Adelaide, Level 5, Adelaide Health and Medical Sciences Building, Adelaide, SA, 5000, Australia
| | - Shadrack M Mutuku
- Robinson Research Institute, The University of Adelaide, Adelaide, SA, 5005, Australia
- Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, SA, 5005, Australia
- Discipline of Reproduction and Development, School of Biomedicine, Adelaide Medical School, The University of Adelaide, Level 5, Adelaide Health and Medical Sciences Building, Adelaide, SA, 5000, Australia
| | - Nicole O McPherson
- Robinson Research Institute, The University of Adelaide, Adelaide, SA, 5005, Australia.
- Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, SA, 5005, Australia.
- Discipline of Reproduction and Development, School of Biomedicine, Adelaide Medical School, The University of Adelaide, Level 5, Adelaide Health and Medical Sciences Building, Adelaide, SA, 5000, Australia.
- Repromed, 180 Fullarton Road, Dulwich, South Australia, 5065, Australia.
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5
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Greenberg DR, Panken EJ, Keeter MK, Bennett NE, Brannigan RE, Halpern JA. Reproductive Urology Consultation Is an Opportunity to Evaluate for Medical Comorbidity: The Prevalence of Elevated Blood Pressure and Obesity at Fertility Evaluation. Cureus 2024; 16:e57071. [PMID: 38681328 PMCID: PMC11052603 DOI: 10.7759/cureus.57071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2024] [Indexed: 05/01/2024] Open
Abstract
Purpose To evaluate the prevalence of elevated blood pressure (EBP), hypertension (HTN), and obesity among men presenting for fertility evaluation. Methods We retrospectively evaluated all men presenting for male infertility consultation at a single institution from 2000 to 2018. Blood pressure (BP) measurements were abstracted from the electronic health record, and EBP/HTN was defined according to American Heart Association/American College of Cardiology guidelines (systolic blood pressure (SBP) ≥ 120 mmHg or diastolic blood pressure (DBP) ≥ 80 mmHg). Descriptive statistics were used to compare demographic and clinical characteristics of men with and without EBP/HTN or obesity (BMI ≥ 30 kg/m2), and logistic regression was utilized to determine associations with EBP/HTN. Results Among 4,127 men, 1,370 (33.2%) had a recorded SBP and DBP within one year of their initial visit. EBP/HTN was noted in 857 (62.6%) men. A total of 249 (18.2%) men were obese, 863 (63.0%) were non-obese, and 258 (18.8%) did not have BMI recorded. HTN and obesity were jointly present in 195 (17.5%) men. There was no significant difference in age, ethnicity, or total motile sperm count between men with and without EBP/HTN. On multivariable analysis, BMI was significantly associated with EBP/HTN (OR: 1.13, 95% CI: 1.08-1.18, p < 0.001). Conclusion More than half of men presenting for initial fertility consultation have either EBP, obesity, or both. Reproductive urologists should consider routinely screening for these conditions and encourage men to seek further evaluation and treatment, when appropriate.
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Affiliation(s)
- Daniel R Greenberg
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, USA
| | - Evan J Panken
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, USA
| | - Mary Kate Keeter
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, USA
| | - Nelson E Bennett
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, USA
| | - Robert E Brannigan
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, USA
| | - Joshua A Halpern
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, USA
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6
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Tilak P, Bawaskar PA, Badge A, Kohale M, Makade JG, Nair N. Resolving Secondary Infertility: A Case Report of the Successful Treatment of Sperm DNA Fragmentation Through the Physiological Intracytoplasmic Sperm Injection Method. Cureus 2024; 16:e53682. [PMID: 38455827 PMCID: PMC10918439 DOI: 10.7759/cureus.53682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 02/05/2024] [Indexed: 03/09/2024] Open
Abstract
This case report presents an illustrative account of a couple experiencing secondary infertility attributed to the fragmentation of DNA in sperm. Secondary infertility, the inability to conceive after having previously successfully conceived a child, can be due to various factors, including male infertility issues. Sperm DNA fragmentation (SDF) has emerged as a major factor influencing male fertility, resulting in poor embryo development and lower pregnancy rates. This case is about the use of advanced assisted reproductive technologies, specifically physiological intracytoplasmic sperm injection (PICSI) and intracytoplasmic sperm injection (ICSI), to treat secondary infertility caused by fragmentation of sperm DNA. PICSI enables the identification and selection of spermatozoa with optimal functional integrity using hyaluronan, a natural binding substance. Preparing a PICSI dish requires skill and precision. Sperm exhibiting a high DNA fragmentation index were excluded from the selection process to enhance embryo development potential. The couple underwent controlled ovarian stimulation, egg retrieval, and ICSI with PICSI. The treatment resulted in the successful conception of a singleton pregnancy. Subsequent prenatal monitoring indicated a healthy pregnancy progression, ultimately culminating in the delivery of a healthy baby girl at term. This case report highlights the efficacy of integrating PICSI as a sperm selection method preceding ICSI, specifically in cases of secondary infertility related to SDF. Further research and larger-scale studies are warranted to approve the findings of this case report and establish the broader applicability of this treatment approach.
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Affiliation(s)
- Priyal Tilak
- Clinical Embryology, School of Allied Health Sciences, Datta Meghe Institute of Higher Education and Research, Nagpur, IND
| | - Pranita A Bawaskar
- Clinical Embryology, School of Allied Health Sciences, Datta Meghe Institute of Higher Education and Research, Nagpur, IND
| | - Ankit Badge
- Microbiology, Datta Meghe Medical College, Datta Meghe Institute of Higher Education and Research, Nagpur, IND
| | - Mangesh Kohale
- Pathology, Datta Meghe Medical College, Datta Meghe Institute of Higher Education and Research, Nagpur, IND
| | - Jagadish G Makade
- Community Medicine, Datta Meghe Medical College, Datta Meghe Institute of Higher Education and Research, Nagpur, IND
| | - Nancy Nair
- Clinical Embryology, School of Allied Health Sciences, Datta Meghe Institute of Higher Education and Research, Nagpur, IND
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Alhamam A, Garabed LR, Julian S, Flannigan R. The association of medications and supplements with human male reproductive health: a systematic review. Fertil Steril 2023; 120:1112-1137. [PMID: 37898470 DOI: 10.1016/j.fertnstert.2023.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/20/2023] [Accepted: 10/23/2023] [Indexed: 10/30/2023]
Abstract
Some medications used to treat comorbidities and conditions in reproductive-aged individuals could have a negative impact on fertility. This may occur through hormonal disruption, toxicity to germ cells and spermatozoa, functional impact on the sperm, teratogenicity potential, or ejaculatory abnormalities. Having knowledge of these potential interactions between medications and reproductive potential is important for clinicians to be aware of and guide the patient, along with their treating clinicians, to reproductively favorable alternatives when available. This review aims to summarize the state of the literature regarding medication interactions with human male reproduction using the Anatomical Therapeutic Chemical Classification System of medications.
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Affiliation(s)
- Abdullah Alhamam
- Department of Urologic Sciences, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Department of Urology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Laurianne Rita Garabed
- Division of Urology, Department of Surgery, University of Montreal, Montreal, Quebec, Canada
| | - Sania Julian
- Department of Urologic Sciences, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ryan Flannigan
- Department of Urologic Sciences, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Department of Urology, Weill Cornell Medicine, New York, New York.
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8
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Santana FDFV, Lozi AA, Gonçalves RV, Da Silva J, Da Matta SLP. Comparative effects of finasteride and minoxidil on the male reproductive organs: A systematic review of in vitro and in vivo evidence. Toxicol Appl Pharmacol 2023; 478:116710. [PMID: 37805090 DOI: 10.1016/j.taap.2023.116710] [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: 06/20/2023] [Revised: 10/01/2023] [Accepted: 10/04/2023] [Indexed: 10/09/2023]
Abstract
Finasteride and minoxidil are medicaments commonly prescribed for treating benign prostatic hyperplasia (BPA), hypertension, and/or androgenetic alopecia (AGA). The mechanism of action of finasteride is based on the interference in androgenic pathways, which may lead to fertility-related disorders in men. Minoxidil, however, can act in multiple ways, and there is no consensus that its use can adversely affect male fertility. Since finasteride and minoxidil could be risk factors for male fertility, we aimed to compare their impact on the two reproductive organs testis and epididymis of adult murine models, besides testis/epididymis-related cells, and describe the mechanism of action involved. For such, we used the PRISMA guideline. We included 31 original studies from a structured search on PubMed/MEDLINE, Scopus, and Web of Science databases. For in vivo studies, the bias analysis and the quality of the studies were assessed as described by SYRCLE (Systematic Review Centre for Laboratory Animal Experimentation). We concluded that finasteride and minoxidil act as hormone disruptors, causing oxidative stress and morphological changes mainly in the testis. Our results also revealed that finasteride treatment could be more harmful to male reproductive health because it was more associated with reproductive injuries, including damage to the epididymis, erectile dysfunction, decreased libido, and reduced semen volume. Thus, this study contributes to the global understanding of the mechanisms by which medicaments used for alopecia might lead to male reproductive disorders. We hope that our critical analysis expedites clinical research and reduces methodological bias. The registration number on the Prospero platform is CRD42022313347.
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Affiliation(s)
| | - Amanda Alves Lozi
- Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Reggiani Vilela Gonçalves
- Department of Animal Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil; Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Janaina Da Silva
- Institut de recherche en santé, environnement et travail (Irset) - UMR 1085, Institut national de la santé et de la recherche médicale (Inserm), Université de Rennes, Rennes, France
| | - Sérgio Luis Pinto Da Matta
- Department of Animal Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil; Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
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9
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Whittaker J. Dietary trends and the decline in male reproductive health. Hormones (Athens) 2023; 22:165-197. [PMID: 36725796 DOI: 10.1007/s42000-023-00431-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 01/16/2023] [Indexed: 02/03/2023]
Abstract
Over the twentieth century, male reproductive health has suffered a substantial decline, as evidenced by decreases in sperm counts and testosterone levels and increases in reproductive pathologies. At the same time, the prevalence of chronic diseases such as obesity, diabetes, and metabolic syndrome has risen dramatically. Metabolic and reproductive health are highly interconnected, suggesting that their respective trends are intertwined and, given the timeframe of such trends, environmental and not genetic factors are most likely to be the primary causes. Industrialization, which began in Europe in the mid-eighteenth century, has resulted in profound changes to our diet, lifestyle, and environment, many of which are causal factors in the rise in chronic diseases. Industrialization results in a nutrition transition from an agricultural unprocessed to a modern processed diet, incorporating increases in sugar, vegetable oils, ultra-processed foods, linoleic acid, trans-fats, and total energy. This dietary shift has incurred numerous adverse effects on metabolic and reproductive health, characterized by chronic inflammation, oxidative stress, and insulin resistance. Moreover, these effects appear to multiply across subsequent generations via epigenetic inheritance. Men's fertility is markedly affected by obesity and diabetes, with an increase in total energy via processed food intake arguably being the key factor driving the diabesity pandemic. In contrast, wholefoods rich in micronutrients and phytonutrients support male fertility and a healthy body weight. Therefore, men wanting to maximize their fertility should consider making positive dietary changes, such as replacing processed foods with unprocessed foods that support metabolic and reproductive health.
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Affiliation(s)
- Joseph Whittaker
- The School of Allied Health and Community, University of Worcester, Henwick Grove, Worcester, WR2 6AJ, UK.
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10
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Kour A, Deb SM, Nayee N, Niranjan SK, Raina VS, Mukherjee A, Gupta ID, Patil CS. Novel insights into genome-wide associations in Bos indicus reveal genetic linkages between fertility and growth. Anim Biotechnol 2023; 34:39-55. [PMID: 34120566 DOI: 10.1080/10495398.2021.1932520] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Bos indicus breed Sahiwal, famous for its optimum performance, has so far been genetically improved for performance traits based on phenotypic records and the genomic knowhow regarding genes, regions and biological processes underlying the complex quantitative traits is lacking. In this context, a Genome-wide Association Study was performed for fertility and growth traits in Sahiwal cattle to shed light on its genomic profile. A total of 46 SNPs were found associated with the traits at genome-wide suggestive threshold of P ≤ 10-4. USP32, LRPPRC, PLA2G10, RRN3 and ASAP1 were identified as putative candidate genes for body weight at different ages. However, several genes mapped for growth traits like GREB1, PLA2G10, RAD51C, BIRC6, TEX14 and PEBP4 had significant physiological underpinnings in determining fertility of the animals. Moreover, Quantitative trait loci (QTL) identification revealed potential overlaps with the already reported QTLs for both fertility and growth for most of the traits. Further, candidate SNP enrichment analysis revealed an enriched biological process for birth weight with a significant reproductive role. Based on the findings, genetic linkages underlying fertility and growth could be discerned in Sahiwal population and may be utilized for improving fertility traits in future.
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Affiliation(s)
- Aneet Kour
- ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | | | - Nilesh Nayee
- National Dairy Development Board, Anand, Gujarat, India
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11
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Burke ND, Nixon B, Roman SD, Schjenken JE, Walters JLH, Aitken RJ, Bromfield EG. Male infertility and somatic health - insights into lipid damage as a mechanistic link. Nat Rev Urol 2022; 19:727-750. [PMID: 36100661 DOI: 10.1038/s41585-022-00640-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/27/2022] [Indexed: 11/08/2022]
Abstract
Over the past decade, mounting evidence has shown an alarming association between male subfertility and poor somatic health, with substantial evidence supporting the increased incidence of oncological disease, cardiovascular disease, metabolic disorders and autoimmune diseases in men who have previously received a subfertility diagnosis. This paradigm is concerning, but might also provide a novel window for a crucial health reform in which the infertile phenotype could serve as an indication of potential pathological conditions. One of the major limiting factors in this association is the poor understanding of the molecular features that link infertility with comorbidities across the life course. Enzymes involved in the lipid oxidation process might provide novel clues to reconcile the mechanistic basis of infertility with incident pathological conditions. Building research capacity in this area is essential to enhance the early detection of disease states and provide crucial information about the disease risk of offspring conceived through assisted reproduction.
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Affiliation(s)
- Nathan D Burke
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia
- Hunter Medical Research Institute, Infertility and Reproduction Research Program, New Lambton Heights, New South Wales, Australia
| | - Brett Nixon
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia
- Hunter Medical Research Institute, Infertility and Reproduction Research Program, New Lambton Heights, New South Wales, Australia
| | - Shaun D Roman
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia
- Hunter Medical Research Institute, Infertility and Reproduction Research Program, New Lambton Heights, New South Wales, Australia
- Priority Research Centre for Drug Development, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - John E Schjenken
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia
- Hunter Medical Research Institute, Infertility and Reproduction Research Program, New Lambton Heights, New South Wales, Australia
| | - Jessica L H Walters
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia
- Hunter Medical Research Institute, Infertility and Reproduction Research Program, New Lambton Heights, New South Wales, Australia
| | - R John Aitken
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia
- Hunter Medical Research Institute, Infertility and Reproduction Research Program, New Lambton Heights, New South Wales, Australia
| | - Elizabeth G Bromfield
- Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Discipline of Biological Sciences, University of Newcastle, Callaghan, New South Wales, Australia.
- Hunter Medical Research Institute, Infertility and Reproduction Research Program, New Lambton Heights, New South Wales, Australia.
- Department of Biomolecular Health Sciences, Utrecht University, Utrecht, Netherlands.
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12
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Sperm concentration and semen volume increase after smoking cessation in infertile men. Int J Impot Res 2022; 34:614-619. [PMID: 35963898 PMCID: PMC9375087 DOI: 10.1038/s41443-022-00605-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 11/25/2022]
Abstract
Smoking has negative reproductive consequences. This study investigated the effect of smoking cessation on the main semen parameters. We included 90 participants who applied to our infertility clinic and smoked at least 20 cigarettes a day for at least 1 year. Of the 90 participants, 48 were in the study group and 42 were in the control group. Semen analysis was performed before and at least 3 months after quitting smoking in the study group. Semen analysis was repeated at baseline and at least 3 months later in the control group. Semen parameters such as volume, sperm concentration, total sperm count, morphology, and motility were evaluated according to the World Health Organization criteria. Patient characteristics as well as the duration of the smoking period, the number of cigarettes smoked per day and the time elapsed since smoking cessation were recorded. The mean age of the participants was 34.69 ± 5.3 years, and the duration of infertility was 34.12 ± 12.1 months (n = 90). The number of cigarettes smoked per day was 30.14 ± 6.69, and the smoking time was 8.31 ± 3.53 years. The average time to quit smoking was 104.2 ± 11.51 days (n = 48). A significant increase in semen volume, sperm concentration and total sperm count was observed 3 months after smoking cessation (2.48 ± 0.79 ml vs. 2.90 ± 0.77 ml, p = 0.002; 18.45 × 106/ml ± 8.56 vs. 22.64 × 106/ml ± 11.69, p = 0.001; 45.04 ± 24.38 × 106 vs. 65.1 ± 34.9 × 106, p < 0.001, respectively). This study showed that smoking cessation had a positive effect on sperm concentration, semen volume, and total sperm count. Although smoking cessation contributed positively to sperm motility and morphology, the difference was not statistically significant.
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13
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Kuo WW, Baskaran R, Lin JY, Day CH, Lin YM, Ho TJ, Chen RJ, Lin MY, Padma VV, Huang CY. Low-dose rapamycin prevents Ang-II-induced toxicity in Leydig cells and testicular dysfunction in hypertensive SHR model. J Biochem Mol Toxicol 2022; 36:e23128. [PMID: 35698875 DOI: 10.1002/jbt.23128] [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: 01/09/2021] [Revised: 04/16/2022] [Accepted: 05/29/2022] [Indexed: 11/10/2022]
Abstract
Hypertension is a common chronic cardiovascular disease reported among both men and women. Hypertension in males affects the testis and reproduction function; however, the pathogenesis is poorly understood. Rapamycin has been reported to have a variety of beneficial pharmacological effects; however, high-doses rapamycin does have side effects such as immunosuppression. The present study investigates whether low-dose rapamycin can reduce the damage caused by hypertension to the testis of spontaneously hypertensive rats (SHRs) and further examines molecular mechanism of low-dose rapamycin in preventing testicular toxicity induced by angiotensin II (Ang II). Low rapamycin dose restores the testicle size, histological alterations, 3β-hydroxysteroid dehydrogenase (3β-HSD) expression, and prevents apoptosis in SHR rats. Ang II downregulates angiotensin-converting enzyme-2 (ACE2) expression through AT1R, p-ERK, and MAS receptor in LC-540 Leydig cells in a dose-dependent manner. Low doses of rapamycin effectively upregulate steroidogenic enzymes, steroidogenic acute regulatory protein and 3β-HSD expression in Leydig cells. Rapamycin upregulates ACE2 expression through p-PKAc and p-PI3k in Ang II-treated cells. Further, rapamycin curbs mitochondrial superoxide generation and depleted mitochondrial membrane potential induced by Ang II through activation of Nrf2-mediated Gpx4 and superoxide dismutase 2 expression. Our results revealed the involvement of ACE2, AT1R, AT2R, PKAc, and oxidative stress in Ang-II-induced testicular toxicity, suggesting low-dose rapamycin could be a potential therapeutic candidate to attenuate testicular toxicity.
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Affiliation(s)
- Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Rathinasamy Baskaran
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Jing-Ying Lin
- Department of Medical Imaging and Radiological Science, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | | | - Yueh-Min Lin
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan
| | - Tsung-Jung Ho
- Department of Chinese Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Tzu Chi University, Hualien, Taiwan
| | - Ray-Jade Chen
- Department of Surgery, Taipei Medical University, Taipei, Taiwan
| | - Mei-Yi Lin
- Department of Food Nutrition and Health Biotechnology, Asia University, Taichung, Taiwan
| | | | - Chih-Yang Huang
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan.,Center of General Education, Buddhist Tzu Chi Medical Foundation, Tzu Chi University of Science and Technology, Hualien, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Department of Biotechnology, Asia University, Taichung, Taiwan.,Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
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14
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Zhuang C, Yi G, Wang W, Sun R, Qi M, Yu J. Sacubitril/Valsartan Improves Sexual Function and Fibrosis of the Clitoral and Vaginal Tissues in Female Spontaneously Hypertensive Rats. J Cardiovasc Pharmacol 2022; 79:858-872. [PMID: 35266909 PMCID: PMC9162275 DOI: 10.1097/fjc.0000000000001251] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 02/22/2022] [Indexed: 11/26/2022]
Abstract
ABSTRACT Female sexual dysfunction is common in hypertension. The effects of sacubitril/valsartan (SAC/VAL) as a potential therapy for hypertension and heart failure have not been studied in relation to sexual function and genital fibrosis in female spontaneously hypertensive rats (SHRs). Thirty female SHRs were administered VAL, SAC/VAL, or saline. Ten normotensive female Wistar-Kyoto (WKY) rats were included in the control group. We assessed estrous cyclicity and sexual behavior in the female rats. In addition, the morphology of clitoral and vaginal tissues was evaluated by histological analyses. Western blotting and enzyme-linked immunosorbent assays were used to assess the levels of fibrotic markers in vaginal and clitoral tissues. Furthermore, the protein levels of phosphatase and tensin homolog deleted from chromosome 10 (PTEN), phosphoinositide-3-kinase (PI3K), and AKT expression were measured by Western blotting. SAC/VAL treatment improved hypertension-induced sexual dysfunction, exhibited as a prolonged estrus phase, increased receptivity and proceptive events, and decreased aggressive events, compared with those of VAL treatment and control SHRs without treatments. In addition, SAC/VAL-treated SHRs had lower levels of fibrotic markers, estradiol, and estrogen receptor α/β than the levels of VAL-treated SHRs or SHRs without treatment. Moreover, SAC/VAL decreased p-PTEN expression and increased p-PI3K and p-AKT expression at the protein level compared with those in VAL treatment alone. VAL and SAC/VAL treatments have significantly increased sexual receptivity and proceptivity, decreased aggressiveness, and improved the fibrosis of vaginal and clitoral tissues in female SHRs. However, SAC/VAL treatment shows more effective results compared with VAL treatment, which may be related to the PTEN/PI3K/AKT pathway.
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Affiliation(s)
- Chenchen Zhuang
- Hypertension Center, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China; and
| | - Guozi Yi
- School of Chemical Engineering, the University of New South Wales, Sydney, Australia.
| | - Wenjuan Wang
- Hypertension Center, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China; and
| | - Runmin Sun
- Hypertension Center, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China; and
| | - Miaomiao Qi
- Hypertension Center, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China; and
| | - Jing Yu
- Hypertension Center, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China; and
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15
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Hypertension Induces Gonadal Macrophage Imbalance, Inflammation, Lymphangiogenesis, and Dysfunction. Clin Sci (Lond) 2022; 136:879-894. [PMID: 35532133 DOI: 10.1042/cs20220117] [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: 02/16/2022] [Revised: 05/03/2022] [Accepted: 05/09/2022] [Indexed: 11/17/2022]
Abstract
Hypertension (HTN) is associated with gonadal dysfunction and impaired reproductive health in both men and women. An imbalance in the systemic and renal pro-inflammatory (M1)/anti-inflammatory (M2) macrophage ratio, increased inflammation, and inflammation-associated lymphangiogenesis have been observed in animals with HTN. However, the impact of HTN on gonadal macrophages, inflammation, and lymphatics remains obscure. We hypothesized that salt-sensitive HTN (SSHTN) and HTN alters gonadal macrophage polarization, which is associated with inflammation, inflammation-associated lymphangiogenesis and reproductive dysfunction. Flow cytometry analyses revealed a significant increase in M1 macrophages in the testes of SSHTN and nitric oxide synthase inhibition-induced HTN (LHTN) mice, with a concurrent decrease in M2 macrophages in SSHTN mice yet an increase in M2 macrophages in LHTN mice. Ovaries from SSHTN mice exhibited increase in M1 and a decrease in M2 macrophages, while ovaries from LHTN mice had a significant increase in M2 and a decrease in M1 macrophages. Gene expression patterns of pro-inflammatory cytokines revealed gonadal inflammation in all hypertensive mice. Increased lymphatic vessel density in the gonads of both male and female hypertensive mice was confirmed by immunofluorescence staining for LYVE-1. HTN adversely affected the expression pattern of steroidogenic enzymes, hormone receptors, and secretory proteins in both the testes and ovaries. In line with these results, male hypertensive mice also presented with decreased sperm concentration, and increased percentage of sperm with abnormal morphology, damaged acrosome, and non-functional mitochondrial activity. These data demonstrate that HTN alters gonadal macrophage polarization, which is associated with gonadal inflammation, inflammation-associated lymphangiogenesis, and dysfunction.
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16
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Wensink MJ, Lu Y, Tian L, Shaw GM, Rizzi S, Jensen TK, Mathiesen ER, Skakkebæk NE, Lindahl-Jacobsen R, Eisenberg ML. Preconception Antidiabetic Drugs in Men and Birth Defects in Offspring : A Nationwide Cohort Study. Ann Intern Med 2022; 175:665-673. [PMID: 35344380 PMCID: PMC9844982 DOI: 10.7326/m21-4389] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Diabetes reduces semen quality and increasingly occurs during reproductive years. Diabetes medications, such as metformin, have glucose-independent effects on the male reproductive system. Associations with birth defects in offspring are unknown. OBJECTIVE To evaluate whether the risk for birth defects in offspring varies with preconceptional pharmacologic treatment of fathers with diabetes. DESIGN Nationwide prospective registry-based cohort study. SETTING Denmark from 1997 to 2016. PARTICIPANTS All liveborn singletons from mothers without histories of diabetes or essential hypertension. MEASUREMENTS Offspring were considered exposed if their father filled 1 or more prescriptions for a diabetes drug during the development of fertilizing sperm. Sex and frequencies of major birth defects were compared across drugs, times of exposure, and siblings. RESULTS Of 1 116 779 offspring included, 3.3% had 1 or more major birth defects (reference). Insulin-exposed offspring (n = 5298) had the reference birth defect frequency (adjusted odds ratio [aOR], 0.98 [95% CI, 0.85 to 1.14]). Metformin-exposed offspring (n = 1451) had an elevated birth defect frequency (aOR, 1.40 [CI, 1.08 to 1.82]). For sulfonylurea-exposed offspring (n = 647), the aOR was 1.34 (CI, 0.94 to 1.92). Offspring whose fathers filled a metformin prescription in the year before (n = 1751) or after (n = 2484) sperm development had reference birth defect frequencies (aORs, 0.88 [CI, 0.59 to 1.31] and 0.92 [CI, 0.68 to 1.26], respectively), as did unexposed siblings of exposed offspring (3.2%; exposed vs. unexposed OR, 1.54 [CI, 0.94 to 2.53]). Among metformin-exposed offspring, genital birth defects, all in boys, were more common (aOR, 3.39 [CI, 1.82 to 6.30]), while the proportion of male offspring was lower (49.4% vs. 51.4%, P = 0.073). LIMITATION Information on underlying disease status was limited. CONCLUSION Preconception paternal metformin treatment is associated with major birth defects, particularly genital birth defects in boys. Further research should replicate these findings and clarify the causation. PRIMARY FUNDING SOURCE National Institutes of Health.
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Affiliation(s)
- Maarten J Wensink
- Department of Epidemiology, Biostatistics and Biodemography, and Interdisciplinary Center on Population Dynamics, University of Southern Denmark, Odense C, Denmark (M.J.W., R.L.)
| | - Ying Lu
- Department of Biomedical Data Science, Stanford University School of Medicine, Stanford, California (Y.L., L.T.)
| | - Lu Tian
- Department of Biomedical Data Science, Stanford University School of Medicine, Stanford, California (Y.L., L.T.)
| | - Gary M Shaw
- Department of Pediatrics, Stanford University School of Medicine, Palo Alto, California (G.M.S.)
| | - Silvia Rizzi
- Interdisciplinary Center on Population Dynamics and Department of Epidemiology, Biostatistics and Biodemography, University of Southern Denmark, Odense M, Denmark (S.R.)
| | - Tina Kold Jensen
- Department of Environmental Medicine, University of Southern Denmark, Odense C, Denmark (T.K.J.)
| | - Elisabeth R Mathiesen
- Centre for Pregnant Women with Diabetes, Rigshospitalet, Copenhagen University, Copenhagen, Denmark (E.R.M.)
| | - Niels E Skakkebæk
- Juliane Marie Centre, Department of Growth and Reproduction, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark (N.E.S.)
| | - Rune Lindahl-Jacobsen
- Department of Epidemiology, Biostatistics and Biodemography, and Interdisciplinary Center on Population Dynamics, University of Southern Denmark, Odense C, Denmark (M.J.W., R.L.)
| | - Michael L Eisenberg
- Male Reproductive Medicine and Surgery, Department of Urology, Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, California (M.L.E.)
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17
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Ayad B, Omolaoye TS, Louw N, Ramsunder Y, Skosana BT, Oyeipo PI, Du Plessis SS. Oxidative Stress and Male Infertility: Evidence From a Research Perspective. FRONTIERS IN REPRODUCTIVE HEALTH 2022; 4:822257. [PMID: 36303652 PMCID: PMC9580735 DOI: 10.3389/frph.2022.822257] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/17/2022] [Indexed: 11/30/2022] Open
Abstract
Male fertility potential can be influenced by a variety of conditions that frequently coincide. Spermatozoa are particularly susceptible to oxidative damage due to their limited antioxidant capacity and cell membrane rich in polyunsaturated fatty acids (PUFAs). The role of oxidative stress (OS) in the etiology of male infertility has been the primary focus of our Stellenbosch University Reproductive Research Group (SURRG) over the last 10 years. This review aims to provide a novel insight into the impact of OS on spermatozoa and male reproductive function by reviewing the OS-related findings from a wide variety of studies conducted in our laboratory, along with those emerging from other investigators. We will provide a concise overview of the production of reactive oxygen species (ROS) and the development of OS in the male reproductive tract along with the physiological and pathological effects thereof on male reproductive functions. Recent advances in methods and techniques used for the assessment of OS will also be highlighted. We will furthermore consider the current evidence regarding the association between OS and ejaculatory abstinence period, as well as the potential mechanisms involved in the pathophysiology of various systemic diseases such as obesity, insulin resistance, hypertension, and certain mental health disorders which have been shown to cause OS induced male infertility. Finally, special emphasis will be placed on the potential for transferring and incorporating research findings emanating from different experimental studies into clinical practice.
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Affiliation(s)
- Bashir Ayad
- Department of Physiology, Faculty of Medicine, Misurata University, Misrata, Libya
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - Temidayo S. Omolaoye
- Department of Basic Medical Sciences, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
| | - Nicola Louw
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - Yashthi Ramsunder
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - Bongekile T. Skosana
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - Peter I. Oyeipo
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
- Department of Physiology, College of Health Sciences, Osun State University, Osogbo, Nigeria
| | - Stefan S. Du Plessis
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
- Department of Basic Medical Sciences, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
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18
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Sharestani S, Kalantar SM, Ghasemi N, Farashahi Yazd E. CAG repeat polymorphism in androgen receptor and infertility: A case-control study. Int J Reprod Biomed 2021; 19:845-851. [PMID: 34723064 PMCID: PMC8548748 DOI: 10.18502/ijrm.v19i9.9717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 10/10/2020] [Accepted: 12/16/2020] [Indexed: 12/02/2022] Open
Abstract
Background Androgens play a role in the development of male phenotype and spermatogenesis during puberty, the function of which is regulated by the androgen receptor (AR) gene. There is a polymorphism site in exon 1 of the gene encoding this receptor that can have different frequencies of CAG trinucleotide repeats and leads to the formation of polyglutamine chains of different lengths in the N-terminal domain of the AR protein and reduced sperm production by affecting spermatogenesis. Objective To investigate whether the cause of a group of unexplained infertilities could be the increased frequency of CAG repeats in the AR gene of patients with oligozoospermia and azoospermia. Materials and Methods In this case-control study, 84 men including 42 with unexplained infertility As a case group and 42 fertile men as a control group were selected. The frequency of CAG repeats was determined by the polymerase chain reaction method and then the difference in the frequency of these repeats was determined based on the difference in band size on the agarose gel. Results The mean CAG repeat length in the azoospermia and oligozoospermia group was 17.5 ± 0.63 and in the fertile group it was 16.11 ± 0.75 (p = 0.46). In addition, most men (88.1% in the case group and 71.41% in the control group) had 13-23 repeats. Conclusion No significant correlation was found between CAG repeat length and the risk of male factor infertility in an ethnically defined population of Iranian men. The role of regulatory factors and epigenetic changes should be taken into account too.
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Affiliation(s)
| | - Seyed Mehdi Kalantar
- Abortion Research Centre, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Science, Yazd, Iran.,Department of Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Nasrin Ghasemi
- Abortion Research Centre, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Science, Yazd, Iran.,Department of Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ehsan Farashahi Yazd
- Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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19
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Chen T, Belladelli F, Del Giudice F, Eisenberg ML. Male fertility as a marker for health. Reprod Biomed Online 2021; 44:131-144. [PMID: 34848151 DOI: 10.1016/j.rbmo.2021.09.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 01/05/2023]
Abstract
Male reproduction is a complex biological process, and male factor infertility is increasingly recognized as a biomarker for overall male health. Emerging data suggest associations between male reproduction and medical disease (genetic, infectious, chronic comorbid conditions), psychological disease, environmental exposures, dietary habits, medications and substances of abuse, and even socioeconomic factors. There is also evidence that a diagnosis of male fertility is associated with future disease risk including cancer, metabolic disease and mortality. As such, there is a growing view that the male fertility evaluation is an opportunity to improve a man's health beyond his immediate reproductive goals, and also highlights the necessity of a multidisciplinary approach.
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Affiliation(s)
- Tony Chen
- Center for Academic Medicine, Stanford University School of Medicine, Palo Alto CA, USA.
| | | | | | - Michael L Eisenberg
- Center for Academic Medicine, Stanford University School of Medicine, Palo Alto CA, USA
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20
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Nasr El-Din A, Sorour H, Fattouh M, Abu El-Hamd M. Evaluation of the role of Chlamydia trachomatis in primary male infertility. Int J Clin Pract 2021; 75:e14702. [PMID: 34378266 DOI: 10.1111/ijcp.14702] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/29/2021] [Accepted: 08/03/2021] [Indexed: 01/26/2023] Open
Abstract
AIMS This study aimed to find out the potential role of Chlamydia trachomatis (C. trachomatis) in male primary infertility and to recommend an easy, rapid, and sensitive diagnostic tool for its detection. METHODS Semen samples were collected from male patients who presented with primary infertility and from age-matched healthy controls. These samples were analysed according to the World Health Organization guidelines. Infection with C. trachomatis in those patients and controls was detected by two methods; assay of anti-chlamydia IgA antibodies level in seminal plasma and detection C. trachomatis deoxyribonucleic acid (DNA) by real-time polymerase chain reaction (RT-PCR) technology. RESULTS Positive detection of anti-Chlamydia IgA antibody was found in 28 (14%) patients and in 6 (9.2%) controls. Positive detection of C. trachomatis-cryptic plasmid gene was found in 15 (7.5%) patients and in zero of controls. Detection of anti-chlamydia IgA by enzyme-linked immunosorbent assay (ELISA) has a sensitivity of 100% and specificity of 92.97%. There were significant associations between C. trachomatis infection and asthenozoospermia (P = .05), and abnormal vitality (P = .003). CONCLUSION C. trachomatis infection adversely affects the fertility potential in males because of its effect on the motility and vitality of sperms. We can rely on the detection of anti-chlamydia IgA antibodies in seminal plasma as a rapid sensitive diagnostic test for the detection of C. trachomatis infection.
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Affiliation(s)
- Asmaa Nasr El-Din
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Hadeer Sorour
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Mona Fattouh
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Mohammed Abu El-Hamd
- Department of Dermatology, Venereology, and Andrology, Faculty of Medicine, Sohag University, Sohag, Egypt
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21
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Akomolafe SF, Olasehinde TA, Oladapo IF, Oyeleye SI. Diet Supplemented with Chrysophyllum albidum G. Don (Sapotaceae) Fruit Pulp Improves Reproductive Function in Hypertensive Male Rats. Reprod Sci 2021; 29:540-556. [PMID: 34591290 DOI: 10.1007/s43032-021-00746-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 09/17/2021] [Indexed: 12/12/2022]
Abstract
Hypertension has been implicated as a risk factor of reproductive disorders. High blood pressure may trigger impaired sperm quality and biomarkers of reproductive disorders. This study aims to investigate the effect of diet supplemented with Chrysophyllum albidum fruit pulp (FP) on sperm parameters, reproductive hormones, and antioxidant markers in testes and epididymis of hypertensive rats. Male Wistar rats were divided into seven groups (n = 10): normotensive control rats [NC], cyclosporine (25 mg/kg)-induced hypertensive rats [Hypert], hypertensive rats treated with captopril (10 mg/kg/day) [Hypert + Capt], hypertensive [Hypert + 2%FP and Hypert + 4%FP], and normotensive [2%FP and 4%FP] rats treated with 2% and 4% of diet supplemented with African star apple fruit's pulp [FP]. Hemodynamic parameters (arterial pressure, diastolic, and systolic pressure), sperm count, sperm motility, reproductive hormones, reactive oxygen species, and malondialdehyde levels were assessed. Diet supplemented with FP fed to hypertensive rats reduced mean arterial pressure, diastolic and systolic blood pressure, and heart rate. Furthermore, FP improved sperm quality in hypertensive rats by increasing sperm count, sperm motility with a concomitant reduction in sperm abnormality. FP also increased 3β and 17β-hydroxysteroid hydrogenase (3β-HSD and 17β -HSD) activities, as well as testosterone, luteinizing hormone, and follicle-stimulating hormone levels. Besides, FP triggered a significant increase in 3β-HSD, 17β -HSD, and STAR expression in rats' testicular tissues. Diet supplemented with FP also reduced ROS and malondialdehyde levels and triggered an increase in thiol levels, catalase, and glutathione-S-transferase activities. This study revealed that FP supplemented diet improved sexual function in cyclosporine-induced hypertensive rats by reducing blood pressure and modulation of sperm parameters, steroidogenic enzymes, and reproductive hormones.
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Affiliation(s)
- Seun F Akomolafe
- Department of Biochemistry, Ekiti State University, Private Mail Bag 5363, Ado-Ekiti, Nigeria.
| | - Tosin A Olasehinde
- Department of Biochemistry and Microbiology, University of Fort Hare, Alice Eastern Cape, South Africa
- Nutrition and Toxicology Division, Food Technology Department, Federal Institute of Industrial Research Oshodi, Lagos, Nigeria
| | - Iyabo F Oladapo
- Department of Basic Medical Science, College of Health Science and Technology, Ijero Ekiti, Nigeria
| | - Sunday I Oyeleye
- Biomedical Technology Department, Federal University of Technology, Akure, Nigeria
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology Akure, Akure, Ondo State, Nigeria
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22
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Hypertension and reproductive dysfunction: a possible role of inflammation and inflammation-associated lymphangiogenesis in gonads. Clin Sci (Lond) 2021; 134:3237-3257. [PMID: 33346358 DOI: 10.1042/cs20201023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/29/2020] [Accepted: 12/01/2020] [Indexed: 01/12/2023]
Abstract
Hypertension is one of the most prevalent diseases that leads to end organ damage especially affecting the heart, kidney, brain, and eyes. Numerous studies have evaluated the association between hypertension and impaired sexual health, in both men and women. The detrimental effects of hypertension in men includes erectile dysfunction, decrease in semen volume, sperm count and motility, and abnormal sperm morphology. Similarly, hypertensive females exhibit decreased vaginal lubrication, reduced orgasm, and several complications in pregnancy leading to fetal and maternal morbidity and mortality. The adverse effect of hypertension on male and female fertility is attributed to hormonal imbalance and changes in the gonadal vasculature. However, mechanistic studies investigating the impact of hypertension on gonads in more detail on a molecular basis remain scarce. Hence, the aim of the current review is to address and summarize the effects of hypertension on reproductive health, and highlight the importance of research on the effects of hypertension on gonadal inflammation and lymphatics.
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23
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Wensink MJ, Rizzi S, Jensen TK, Skakkebaek NE, Lu Y, Lindahl-Jacobsen R, Eisenberg ML. Paternal prescription medication before conception: A retrospective cohort study of all births in Denmark 1997-2017. Scand J Public Health 2021; 49:884-890. [PMID: 33615897 DOI: 10.1177/1403494820987468] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
AIM To study what medication fathers are being prescribed in the months preceding conception. METHODS A retrospective cohort study of Danish national registries, comprising all births in Denmark 1997-2017 (1.3 million births). Time trends and absolute levels of paternal prescription medication in the 6 months prior to conception were assessed. While all medications were examined (N = 1335), we focused on the main medication groups, medications that have increased in use over time, and medications for which previous evidence exists of an effect on sperm quality. RESULTS The average number of prescriptions increased over the study period (from 0.75 prescriptions to 0.82 per birth). Polypharmacy (three or more prescriptions) increased from less than 8% to 10% of fathers. The use of pain medication, proton-pump inhibitors, selective serotonin reuptake inhibitors and some inhalants have all increased markedly over the last 20 years. CONCLUSIONS Potential harm to the offspring done by paternal medication may present an increasing problem. As paternal medication exposure is increasing, examination of generational effects, such as major birth defects, is necessary.
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Affiliation(s)
- M J Wensink
- Department of Epidemiology, Biostatistics and Biodemography, University of Southern Denmark, Odense C, Denmark.,Interdisciplinary Centre on Population Dynamics, University of Southern Denmark, Odense C, Denmark
| | - S Rizzi
- Department of Epidemiology, Biostatistics and Biodemography, University of Southern Denmark, Odense C, Denmark.,Interdisciplinary Centre on Population Dynamics, University of Southern Denmark, Odense C, Denmark
| | - T K Jensen
- Department of Environmental Medicine, University of Southern Denmark, Odense C, Denmark
| | - N E Skakkebaek
- Juliane Marie Centre, Department of Growth and Reproduction, Copenhagen University Hospital, Denmark
| | - Y Lu
- Department of Biomedical Data Science, Stanford University School of Medicine, USA
| | - R Lindahl-Jacobsen
- Department of Epidemiology, Biostatistics and Biodemography, University of Southern Denmark, Odense C, Denmark.,Interdisciplinary Centre on Population Dynamics, University of Southern Denmark, Odense C, Denmark
| | - M L Eisenberg
- Male Reproductive Medicine and Surgery, Department of Urology, Stanford University School of Medicine, USA
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24
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Lotti F, Marchiani S, Corona G, Maggi M. Metabolic Syndrome and Reproduction. Int J Mol Sci 2021; 22:ijms22041988. [PMID: 33671459 PMCID: PMC7922007 DOI: 10.3390/ijms22041988] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/08/2021] [Accepted: 02/11/2021] [Indexed: 02/06/2023] Open
Abstract
Metabolic syndrome (MetS) and infertility are two afflictions with a high prevalence in the general population. MetS is a global health problem increasing worldwide, while infertility affects up to 12% of men. Despite the high prevalence of these conditions, the possible impact of MetS on male fertility has been investigated by a few authors only in the last decade. In addition, underlying mechanism(s) connecting the two conditions have been investigated in few preclinical studies. The aim of this review is to summarize and critically discuss available clinical and preclinical studies on the role of MetS (and its treatment) in male fertility. An extensive Medline search was performed identifying studies in the English language. While several studies support an association between MetS and hypogonadism, contrasting results have been reported on the relationship between MetS and semen parameters/male infertility, and the available studies considered heterogeneous MetS definitions and populations. So far, only two meta-analyses in clinical and preclinical studies, respectively, evaluated this topic, reporting a negative association between MetS and sperm parameters, testosterone and FSH levels, advocating, however, larger prospective investigations. In conclusion, a possible negative impact of MetS on male reproductive potential was reported; however, larger studies are needed.
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Affiliation(s)
- Francesco Lotti
- Andrology, Female Endocrinology and Gender Incongruence Unit, Department of Experimental, Clinical and Biomedical Sciences, University of Florence, 50139 Florence, Italy; (F.L.); (S.M.)
| | - Sara Marchiani
- Andrology, Female Endocrinology and Gender Incongruence Unit, Department of Experimental, Clinical and Biomedical Sciences, University of Florence, 50139 Florence, Italy; (F.L.); (S.M.)
| | - Giovanni Corona
- Endocrinology Unit, Medical Department, Maggiore-Bellaria Hospital, Azienda-Usl Bologna, 40139 Bologna, Italy
- Correspondence:
| | - Mario Maggi
- Endocrinology Unit, Department of Experimental, Clinical and Biomedical Sciences, University of Florence, 50139 Florence, Italy;
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25
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Wagner IV, Oliver E, Dötsch J, Söder O. Adverse effects of metabolic disorders in childhood on adult reproductive function and fertility in the male. J Pediatr Endocrinol Metab 2021; 34:13-23. [PMID: 33185575 DOI: 10.1515/jpem-2020-0276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 09/21/2020] [Indexed: 12/21/2022]
Abstract
Over the last 50 years, there has been a steady decline in fertility rates in humans, which has occurred in parallel with an increasing incidence of obesity and metabolic disorders. The potential impact of these disorders and plausible mechanisms by which they negatively influence male reproduction are only partly understood and published data are often controversial. Obesity is one of the most important health challenges worldwide and is becoming more prevalent in children and adolescents. Obesity, the metabolic syndrome and related co-morbidities can lead to impaired male reproductive function, including adverse effects on spermatogenesis and steroidogenesis as illustrated by reduced sperm number and quality, decreased testosterone levels and elevated inflammatory markers. The incidence of diabetes mellitus type I is also dramatically increasing and may negatively impact spermatogenesis and testicular function, resulting in decreased serum testosterone and epididymal weight. In this review, we summarize and discuss the effects of metabolic diseases that typically develop during childhood and adolescence on later reproductive function and fertility. While impact on reproductive health is likely observed in both sexes, we have chosen to focus on the male in the current review. Specifically, we illustrate adverse effects of obesity, type 1 diabetes, the metabolic syndrome and insulin resistance on sperm function and testosterone metabolism. Identification of pathophysiological mechanisms during childhood may open up new avenues for early prevention and treatment resulting in better reproductive outcomes and improved fertility rates during adulthood.
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Affiliation(s)
- Isabel Viola Wagner
- Karolinska Institutet, Department of Women's and Children's Health, Pediatric Endocrinology Unit, Stockholm, Sweden.,Department of Pediatrics, Medical Faculty, University of Cologne, Pediatric Endocrinology Unit, Cologne, Germany.,Department of Pediatrics, Medical Faculty, University of Lübeck, Pediatric Endocrinology Unit, Lübeck, Germany
| | - Elizabeth Oliver
- NORDFERTIL Research Lab Stockholm, Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet, Karolinska University Hospital, Solna, Sweden
| | - Jörg Dötsch
- Department of Pediatrics, Medical Faculty, University of Cologne, Pediatric Endocrinology Unit, Cologne, Germany
| | - Olle Söder
- Karolinska Institutet, Department of Women's and Children's Health, Pediatric Endocrinology Unit, Stockholm, Sweden.,Department of Pediatrics, Medical Faculty, University of Lübeck, Pediatric Endocrinology Unit, Lübeck, Germany
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26
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Das A, Darves-Bornoz A, Joshi T, Keeter MK, Wren JM, Bennett NE, Brannigan RE, Halpern JA. Online access to male factor infertility care: the challenge of finding a specialist. F S Rep 2020; 1:227-232. [PMID: 34223249 PMCID: PMC8244381 DOI: 10.1016/j.xfre.2020.09.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 09/12/2020] [Accepted: 09/21/2020] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE To investigate internet search results available to couples searching for a male factor infertility specialist. DESIGN Cross-sectional. SETTING Online search engine. PATIENTS The phrase "male infertility specialist " was searched in Google for 50 states and Washington D.C. The top 10 results (i.e., first page) of each search were evaluated for website content. INTERVENTIONS None. MAIN OUTCOME MEASURES The first page of each search was evaluated for provider type (urology vs. obstetrics and gynecology), level of training (fellowship vs. none), male factor fertility information provided, and procedures offered. We compared search position rank (1-10) to determine the likelihood of finding an urologist versus a practitioner in obstetrics and gynecology. RESULTS A total of 419 results were identified; the majority were obstetrics and gynecology-related (N = 229, 54.7%). Urology-related results appeared higher than obstetrics and gynecology-related results (median, 4 vs. 5). Andrology fellowship-trained urologists were identified in 153 (36.5%) results. Among 229 obstetrics and gynecology results, 152 unique practices were identified. A small portion (N = 38, 16.6%) of these practices had a fellowship-trained urologist identified on the website. Most obstetrics and gynecology websites did not mention vasectomy reversal (N = 116, 76.3%) or varicocele repair (N = 93, 61.2%). A minority of practices offered referral to urologists for sperm extraction (N = 23, 15.1%) or offered sperm retrieval themselves (N = 23, 15.1%). CONCLUSIONS When searching online for a male factor infertility specialist, most results identified obstetrics and gynecology physicians. A large proportion of obstetrics and gynecology websites lacked information on male factor fertility treatments and did not offer these treatments. These data indicate the need for a more robust online presence of male reproductive urologists to optimize online access.
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Affiliation(s)
- Arighno Das
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Anne Darves-Bornoz
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Tejas Joshi
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Mary Kate Keeter
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - James M. Wren
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Nelson E. Bennett
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Robert E. Brannigan
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Joshua A. Halpern
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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27
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Zauner G, Girardi G. Potential causes of male and female infertility in Qatar. J Reprod Immunol 2020; 141:103173. [PMID: 32652349 DOI: 10.1016/j.jri.2020.103173] [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] [Received: 05/17/2020] [Revised: 06/14/2020] [Accepted: 06/22/2020] [Indexed: 12/13/2022]
Abstract
A steady decline in the fertility rate has been observed in Qatar during the past fifty years. Therefore, infertility is considered a national priority in Qatar, a pronatalist society. This review article summarises the potential causes of infertility that are particularly prevalent in the Qatari population. The high rate of consanguinity leading to genetic abnormalities, the high incidence of metabolic disease, environmental contamination due to the rapid urbanization and oil and natural gas extraction procedures are discussed. In addition, the particular lifestyle of the Qatari population and the influence of religion and culture on sexual and reproductive behavior in an Arab/Islamic society are considered. The active response of the state of Qatar in implementing ways to mitigate the effects of these factors to protect fertility are also presented.
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Affiliation(s)
- Gerhild Zauner
- Department of Basic Medical Sciences, College of Medicine, Member of QU Health, Qatar University, Doha, Qatar
| | - Guillermina Girardi
- Department of Basic Medical Sciences, College of Medicine, Member of QU Health, Qatar University, Doha, Qatar.
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28
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Jurkiewicz NH, Jurkiewicz A, da Silva Júnior ED. Physiopharmacological properties of the testicular capsule: A concise review. Eur J Pharmacol 2020; 883:173345. [PMID: 32663540 DOI: 10.1016/j.ejphar.2020.173345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 06/19/2020] [Accepted: 07/02/2020] [Indexed: 11/30/2022]
Abstract
The testicular capsules of different mammalian species exhibit spontaneous motor activity. In addition, contractions can be mediated by neuronal stimulation or exogenous drug administration. However, the physiological role of testicular capsule motor activity is still not well understood. Nevertheless, there is evidence for putative roles in spermatozoa transport from the testis to the caput epididymis, control of interstitial/intratesticular pressure and testicular blood flow. In this review, we have collated information about the agents that regulate testicular capsule motor activity, their receptors and second messengers as well as the impact of altered testicular capsule function on the male reproductive system. Furthermore, we highlight the knowledge gaps in the physiology and pharmacology of the testicular capsule as indicators of future research directions that may lead to a better understanding of the physiological role of testicular capsule motor activity and its importance in male fertility.
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Affiliation(s)
- Neide H Jurkiewicz
- Department of Pharmacology, Federal University of São Paulo (UNIFESP), São Paulo, Brazil
| | - Aron Jurkiewicz
- Department of Pharmacology, Federal University of São Paulo (UNIFESP), São Paulo, Brazil
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29
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Vieira HR, Gonçalves GD, Vieira NA, Erthal RP, Sampaio CF, Pinto IC, Silva TNX, de Lion Siervo GEM, Cecchini R, Guarnier FA, Fernandes GSA. Pulmonary Emphysema Impairs Male Reproductive Physiology Due To Testosterone and Oxidative Stress Imbalance in Mesocricetus auratus. Reprod Sci 2020; 27:2052-2062. [PMID: 32557123 DOI: 10.1007/s43032-020-00224-4] [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: 01/20/2020] [Accepted: 05/25/2020] [Indexed: 02/06/2023]
Abstract
This study evaluated whether pulmonary emphysema affects sperm quality, male reproductive organs, and testosterone levels in adult male hamsters. Mesocricetus auratus males (130-150 g) were subdivided into a control group (C group) and an emphysema group (E group). The C group received an intratracheal instillation of saline solution (0.3 mL/100 g of body weight), and the E group received papain (40 mg/100 g of body weight). After 60 days, the biometric, pulmonary, and reproductive parameters of each group were evaluated. The E group developed pulmonary emphysema, which decreased body weight and sperm quality compared to the C group. In oxidative stress-related assays, lipid peroxidation was increased in the testis and epididymis (caput and cauda) in the E group compared with the C group. However, only the caput epididymis showed a reduction in glutathione levels. Pulmonary emphysema also affected the testicle by inducing an increase in abnormal seminiferous tubules, accompanied by a decrease in seminiferous epithelium height. Spermatogenesis kinetics were also modified by pulmonary emphysema. The number of Leydig and Sertoli cells decreased in the E group, accompanied by an increase in the nuclear volume of Leydig cells. Testosterone concentration was increased in the E group. Similarly, pulmonary emphysema altered epididymal components in all regions. In conclusion, pulmonary emphysema affected the reproductive system in this experimental model, as shown by testicular and epididymal morphophysiology changes, hormonal alteration, and oxidative stress imbalance, inducing the loss of correct function in the male reproductive system.
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Affiliation(s)
| | - Gessica Dutra Gonçalves
- Department of General Biology, State University of Londrina, Londrina, PR, Brazil.,Department of General Pathology, State University of Londrina, Londrina, PR, Brazil
| | | | - Rafaela Pires Erthal
- Department of General Biology, State University of Londrina, Londrina, PR, Brazil.,Department of General Pathology, State University of Londrina, Londrina, PR, Brazil
| | | | | | | | - Gláucia Eloisa Munhoz de Lion Siervo
- Department of General Biology, State University of Londrina, Londrina, PR, Brazil.,Department of General Pathology, State University of Londrina, Londrina, PR, Brazil
| | - Rubens Cecchini
- Department of General Pathology, State University of Londrina, Londrina, PR, Brazil
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30
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Abstract
PURPOSE OF REVIEW To review the evidence regarding a decrease in worldwide sperm parameters and discuss potential causative factors. RECENT FINDINGS The topic of worldwide decline in sperm parameters is contentious; however, recent high-quality studies have demonstrated that there is indeed a decline in sperm parameters. Several retrospective and basic science studies have shown possible links for this decline in sperm parameters such as obesity, diet, and environmental toxins. SUMMARY There exist substantial data to suggest a decline in sperm counts over time. Although causative factors have yet to be fully elucidated, potential causes include, increased rates of obesity, poor diet, and exposure to environmental toxins. How this decline in sperm counts reflects fertility has yet to be determined. As such, further studies are necessary to evaluate whether this decline in sperm count correlates with decreased fecundity and how to identify and mitigate potential causative factors.
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Affiliation(s)
- Uday Mann
- Section of Urology, Department of Surgery, University of Manitoba, Winnipeg, Manitoba, Canada
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31
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Chen YY, Kao TW, Peng TC, Yang HF, Wu CJ, Chen WL. Metabolic syndrome and semen quality in adult population. J Diabetes 2020; 12:294-304. [PMID: 31605564 DOI: 10.1111/1753-0407.12995] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 09/04/2019] [Accepted: 10/08/2019] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Male obesity is suggested to impact negatively on male fertility and semen quality in numerous studies. However, previous literatures regarding health effects of the metabolic syndrome (MetS) on semen quality are rare and inconsistent. The aim of this study is to investigate the relationship between MetS and sperm parameters in a Taiwanese reproductive-age male population. METHODS A total of 8395 men who attended a private medical screening program in Taiwan from 2010 to 2016 were included in this cross-sectional study. Semen analysis was assessed in accordance with the WHO guidelines and included sperm concentration, total motility, progressive motility, and morphology. MetS was defined by the modified National Cholesterol Education Program Third Adult Treatment Panel (NCEP ATP III) criteria with the Asian cutoff for waist circumference (WC). The associations between MetS and semen analysis were examined by multivariable linear regressions. RESULTS After fully adjusting for pertinent covariables, MetS was significantly associated with a reduced percentage of sperm normal morphology. Blood pressure, WC, and serum glucose had a significantly negative association with sperm normal morphology. Individuals with an increased number of MetS components had a closer association with reduced sperm progressive motility and the percentage of normal morphology. CONCLUSION MetS and its components exhibited deleterious effects on semen quality among reproductive-age men. Further studies are warranted to explore these pathophysiologic relationship and underlying mechanisms.
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Affiliation(s)
- Yuan-Yuei Chen
- Department of Internal Medicine, Tri-Service General Hospital Songshan Branch; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Department of General Medicine, Tri-Service General Hospital and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Department of General Medicine, Tri-Service General Hospital, Taipei, Taiwan, Republic of China
| | - Tung-Wei Kao
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Graduate Institute of Clinical Medical, College of Medicine, National Taiwan University, Taipei, Republic of China
| | - Tao-Chun Peng
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
| | - Hui-Fang Yang
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
| | - Chen-Jung Wu
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Family Medicine, Department of Community Medicine, Taoyuan Armed Forces General Hospital, Taoyuan, Republic of China
| | - Wei-Liang Chen
- Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
- Division of Geriatric Medicine, Department of Family and Community Medicine, Tri-Service General Hospital; and School of Medicine, National Defense Medical Center, Taipei, Republic of China
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32
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Abstract
Somatic health is associated with male infertility; potential links between infertility and health may arise from genetic, developmental, and lifestyle factors. Studies have explored possible connections between male infertility and oncologic, cardiovascular, metabolic, chronic, and autoimmune diseases. Male infertility also may be a predictor of hospitalization and mortality. Additional research is required to elucidate the mechanisms by which male infertility affects overall health.
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33
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Abstract
There is increasing evidence that male infertility may be a harbinger of comorbid medical illness. Existing studies have shed light on associations between infertility and the prevalence of cardiovascular, metabolic, and oncologic disease, along with rates of hospitalization and overall mortality. Although theorized mechanisms include genetic, developmental, and behavioral precipitants, the exact nature of these associations remains unclear and warrants further investigation.
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Affiliation(s)
- Jeremy T Choy
- Division of Endocrinology, Gerontology, and Metabolism, Stanford University School of Medicine, Stanford, CA, USA
| | - Michael L Eisenberg
- Department of Urology, Stanford University School of Medicine, Stanford, CA, USA
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34
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Hong X, Zhao J, Huang K, Dai Q, Zhang H, Xuan Y, Wu J, Fang S, Wang Q, Shen H, Xu Z, Zhang Y, Yan D, Qi D, Yang X, Zhang Y, Ma X, Wang B. Preconception blood pressure and time to pregnancy among couples attempting to conceive their first pregnancy. Am J Obstet Gynecol 2019; 221:470.e1-470.e10. [PMID: 31152709 DOI: 10.1016/j.ajog.2019.05.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 05/09/2019] [Accepted: 05/23/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND The association of abnormal blood pressure levels (including hypertension and prehypertension) with reduced fecundability among young childbearing-age couples is not yet elucidated completely. OBJECTIVE The purpose of this study was to investigate the association between abnormal preconception blood pressure level and time to pregnancy among couples who are attempting to conceive their first pregnancy. STUDY DESIGN A total of 2,234,350 eligible couples (with no previous gravidity and whose female partners were 20-49 years old) participated in the National Free Preconception Check-up Projects from January 1, 2015, to December 31, 2016. Each couples' preconception blood pressure levels were measured, and time to pregnancy was recorded. Cox models for discrete survival time were used to estimate fecundability odds ratios and their corresponding 95% confidence intervals after adjustment for age, ethnicity, educational level, occupation, household registration, region, tobacco exposure, alcohol intake, body mass index, duration of marriage of the couples, and fasting plasma glucose levels of the female partner. RESULTS Compared with normotensive women, those women with hypertension (systolic blood pressure ≥140 mm Hg or diastolic blood pressure ≥90 mm Hg) had a 21% lower pregnancy rate (fecundability odds ratio, 0.79; 95% confidence interval, 0.78-0.81). A similar finding was found among men (fecundability odds ratio, 0.89; 95% confidence interval, 0.88-0.90). Prehypertension (systolic blood pressure between 120 and 139 mm Hg, and/or a diastolic blood pressure between 80 and 89 mm Hg) in both male and female partners was associated slightly with reduced fecundability odds ratios. Compared with couples in which both partners were normotensive, the pregnancy rate was reduced by 27% (fecundability odds ratio, 0.73; 95% confidence interval, 0.69-0.77) among couples in which both partners had hypertension. CONCLUSION Abnormal preconception blood pressure levels were associated with prolonged time to pregnancy among couples who were attempting to conceive their first pregnancy; the mechanism is worth further investigation.
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35
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Rastrelli G, Lotti F, Reisman Y, Sforza A, Maggi M, Corona G. Metabolically healthy and unhealthy obesity in erectile dysfunction and male infertility. Expert Rev Endocrinol Metab 2019; 14:321-334. [PMID: 31464531 DOI: 10.1080/17446651.2019.1657827] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 08/16/2019] [Indexed: 12/17/2022]
Abstract
Introduction: Metabolically unhealthy obesity (MUHO) is the most important preventable cardiovascular (CV) risk factor. Recently, the significance of metabolically healthy obesity (MHO) as a CV risk factor has raised increasing interest. MUHO is a known risk factor for erectile dysfunction (ED); however, the effect of MHO on ED has barely been investigated. This review aims at summarizing the evidence supporting the relation of MUHO and MHO to male sexual functioning and fertility. Areas covered: An extensive Medline search on obesity and ED or male infertility was conducted to summarize the role of MUHO or MHO on male sexual dysfunction and infertility. Expert opinion: Longitudinal studies have demonstrated that MHO causes vascular damage, which is consistent with the impairment in penile blood flows found in ED subjects. In this population, MHO is a predictor of CV events. The relationship between male infertility and MUHO is currently debated and data on MHO are almost completely lacking. The only available study did not find an association between obesity classes and semen parameters. Although the andrological correlates of MHO must be better assessed, in the current state, evidence suggests that MHO does not represent a benign condition and measures for improving lifestyle are mandatory.
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Affiliation(s)
- Giulia Rastrelli
- Department of Experimental and Clinical Biomedical Sciences, University of Florence , Florence , Italy
| | - Francesco Lotti
- Department of Experimental and Clinical Biomedical Sciences, University of Florence , Florence , Italy
| | - Yacov Reisman
- Department of Urology, Amstelland Hospital , Amsterdam , The Netherlands
| | - Alessandra Sforza
- Endocrinology Unit, Medical Department, Maggiore-Bellaria Hospital , Bologna , Italy
| | - Mario Maggi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence , Florence , Italy
| | - Giovanni Corona
- Endocrinology Unit, Medical Department, Maggiore-Bellaria Hospital , Bologna , Italy
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36
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Arafa MH, Amin DM, Samir GM, Atteia HH. Protective effects of tribulus terrestris extract and angiotensin blockers on testis steroidogenesis in copper overloaded rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 178:113-122. [PMID: 30999179 DOI: 10.1016/j.ecoenv.2019.04.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 03/19/2019] [Accepted: 04/03/2019] [Indexed: 06/09/2023]
Abstract
The rational of the current study was to assess whether Tribulus terrestris extract (TTE) could alleviate long-term copper (Cu) overload-induced testicular dysfunction compared to enalapril and losartan. Rats were administered either vehicle (control group, n = 10) or copper sulfate pentahydrate (CuSO4·5H2O, 200 mg/kg, p.o) for 90 days (n = 40). Cu-treated rats were randomized into four equal groups. One group was left untreated (Cu group) while the remaining three groups were daily co-treated with one of the following treatments along with CuSO4: TTE (10 mg/kg, p.o); enalapril (30 mg/kg, p.o); losartan (10 mg/kg, p.o). Excess Cu intake resulted in Cu overload coupled with a significant elevation in systolic blood pressure and serum angiotensin II levels along with a reduction in serum nitric oxide level. All concomitant treatments led to an alleviation of such deleterious effects. However, only losartan failed to ameliorate angiotensin II elevation. Additionally, all treatments protected the testes against Cu-overload-elicited zinc depletion and oxidative stress. Regarding reproductive function, the relative weights of testes, serum levels of testosterone and luteinizing hormone; the expression of steroidogenic genes; the protein levels of angiotensin II type 1 receptor and angiotensin converting enzyme 1, in addition to its activity, they were significantly reduced. Amongst all treatments, only TTE and E were able to revert these reproductive changes. In conclusion TTE and E were able to protect against Cu overload-induced impairment of testicular steroidogenesis. Thus, they might be considered as prophylactic drugs of choice against hypertension and testicular dysfunction to ameliorate Cu overload risk.
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Affiliation(s)
- Manar Hamed Arafa
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, Sharkia Gov., Egypt
| | - Dalia Mohamed Amin
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, Sharkia Gov., Egypt
| | - Ghada Mohammed Samir
- Department of Internal Medicine, Faculty of Medicine, Zagazig University, Zagazig, Sharkia Gov., Egypt
| | - Hebatallah Husseini Atteia
- Department of Biochemistry, Faculty of Pharmacy, Zagazig University, 44519, Zagazig, Sharkia Gov., Egypt.
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Martins AD, Majzoub A, Agawal A. Metabolic Syndrome and Male Fertility. World J Mens Health 2019; 37:113-127. [PMID: 30350486 PMCID: PMC6479081 DOI: 10.5534/wjmh.180055] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 07/05/2018] [Indexed: 12/23/2022] Open
Abstract
Metabolic syndrome (MetS) represents a cluster of conditions that have a negative impact on human health overall. Its prevalence has been rapidly increasing worldwide and has coincided with a global decrease in birth rates and fertility potential. This review aims to address this observation through studying the relationship between MetS and male reproductive health. The effects of obesity, dyslipidemia, hypertension, and insulin resistance on male fertility were examined and supporting evidence explaining the pathophysiology of sperm dysfunction with each MetS component were described. Adopting a healthy lifestyle appears to be the single most important intervention to prevent the unwanted effects of MetS on men's health and fertility. Further studies addressing the components of MetS and their impact on male reproduction are required to enhance our understanding of the underlying pathophysiology and to propose new methods for therapeutic intervention.
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Affiliation(s)
- Ana Dias Martins
- American Center for Reproductive Medicine, Department of Urology, Cleveland Clinic, Cleveland, OH, USA
- Department of Microscopy, Laboratory of Cell Biology and Unit for Multidisciplinary Research in Biomedicine, Abel Salazar Institute of Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal
| | - Ahmad Majzoub
- Department of Urology, Hamad Medical Corporation and Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Ashok Agawal
- American Center for Reproductive Medicine, Department of Urology, Cleveland Clinic, Cleveland, OH, USA.
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Glazer CH. Medical treatment of comorbidities among infertile men: a step toward improving semen quality and general health status of infertile men? Fertil Steril 2018; 110:1029. [PMID: 30396540 DOI: 10.1016/j.fertnstert.2018.08.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 08/08/2018] [Indexed: 10/27/2022]
Affiliation(s)
- Clara Helene Glazer
- Department of Occupational and Environmental Medicine, Bispebjerg Hospital, Copenhagen, Denmark
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Nogueira C, Yoshida IH, Vilarino FL, Carvalho WPD, Cordts EB, Barbosa CP. Seminal profile of 23,504 patients over the years: 7 years of experience. JBRA Assist Reprod 2018; 22:286-288. [PMID: 30118194 PMCID: PMC6210611 DOI: 10.5935/1518-0557.20180055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Objective To evaluate the behavior of seminal parameters over the years - 2010 to May
2017. Methods A retrospective study, carried out from January 2010 to May 2017, covering
men who underwent sperm examination. Seminal parameters (volume, sperm
concentration, motility, morphology, age and duration of infertility in
years) of 23,504 men were evaluated. The groups were compared to each other
to check whether there were changes to the seminal parameters in that
period. Results There was no change over the years considering the time of infertility, in an
average of 3.78 years. The mean age of the patients was 36.53 years, with a
trend of increase in 0.2 years. In relation to the volume of semen samples,
the mean value was 3.29mL, with a decrease trend in 0.05mL. As for sperm
concentration, the average was 34.37 million/mL, with a decrease trend of
1.0 million/mL. Progressive sperm motility showed an average of 47.27% and
there was a decrease trend of 0.67%. Finally, sperm morphology presented an
average of 2.79% of normal spermatozoa, with a decrease trend of 0.33%. Conclusion It can be noted that over the years, the sperm quality of men looking for
assisted reproduction clinics has tended to decrease in macroscopic and
microscopic parameters (volume, sperm concentration, motility and
morphology).
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Affiliation(s)
- Camila Nogueira
- Instituto Ideia Fértil de Saúde Reprodutiva, Santo André - SP, Brazil
| | - Ivan Henrique Yoshida
- Instituto Ideia Fértil de Saúde Reprodutiva, Santo André - SP, Brazil.,Faculdade de Medicina do ABC, Santo André - SP, Brazil
| | | | - Waldemar Pereira de Carvalho
- Instituto Ideia Fértil de Saúde Reprodutiva, Santo André - SP, Brazil.,Faculdade de Medicina do ABC, Santo André - SP, Brazil
| | - Emerson Barch Cordts
- Instituto Ideia Fértil de Saúde Reprodutiva, Santo André - SP, Brazil.,Faculdade de Medicina do ABC, Santo André - SP, Brazil
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Boeri L, Capogrosso P, Ventimiglia E, Pederzoli F, Frego N, Cazzaniga W, Chierigo F, Alfano M, Piemonti L, Viganò P, Pontillo M, Montanari E, Montorsi F, Salonia A. Undiagnosed prediabetes is highly prevalent in primary infertile men - results from a cross-sectional study. BJU Int 2018; 123:1070-1077. [DOI: 10.1111/bju.14558] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Luca Boeri
- Division of Experimental Oncology/Unit of Urology; URI, IRCCS Ospedale San Raffaele; Milan Italy
- Department of Urology; Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico; University of Milan; Milan Italy
| | - Paolo Capogrosso
- Division of Experimental Oncology/Unit of Urology; URI, IRCCS Ospedale San Raffaele; Milan Italy
- University Vita-Salute San Raffaele; Milan Italy
| | - Eugenio Ventimiglia
- Division of Experimental Oncology/Unit of Urology; URI, IRCCS Ospedale San Raffaele; Milan Italy
- University Vita-Salute San Raffaele; Milan Italy
| | - Filippo Pederzoli
- Division of Experimental Oncology/Unit of Urology; URI, IRCCS Ospedale San Raffaele; Milan Italy
- University Vita-Salute San Raffaele; Milan Italy
| | - Nicola Frego
- Division of Experimental Oncology/Unit of Urology; URI, IRCCS Ospedale San Raffaele; Milan Italy
- University Vita-Salute San Raffaele; Milan Italy
| | - Walter Cazzaniga
- Division of Experimental Oncology/Unit of Urology; URI, IRCCS Ospedale San Raffaele; Milan Italy
- University Vita-Salute San Raffaele; Milan Italy
| | - Francesco Chierigo
- Division of Experimental Oncology/Unit of Urology; URI, IRCCS Ospedale San Raffaele; Milan Italy
- University Vita-Salute San Raffaele; Milan Italy
| | - Massimo Alfano
- Division of Experimental Oncology/Unit of Urology; URI, IRCCS Ospedale San Raffaele; Milan Italy
| | - Lorenzo Piemonti
- University Vita-Salute San Raffaele; Milan Italy
- Diabetes Research Institute; IRCCS Ospedale San Raffaele; Milan Italy
| | - Paola Viganò
- Infertility Unit; Unit of Obstetrics/Gynecology; IRCCS Ospedale San Raffaele; Milan Italy
| | - Marina Pontillo
- Laboratory Medicine Service; IRCCS Ospedale San Raffaele; Milan Italy
| | - Emanuele Montanari
- Department of Urology; Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico; University of Milan; Milan Italy
| | - Francesco Montorsi
- Division of Experimental Oncology/Unit of Urology; URI, IRCCS Ospedale San Raffaele; Milan Italy
- University Vita-Salute San Raffaele; Milan Italy
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology; URI, IRCCS Ospedale San Raffaele; Milan Italy
- University Vita-Salute San Raffaele; Milan Italy
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41
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Choy JT, Eisenberg ML. Male infertility as a window to health. Fertil Steril 2018; 110:810-814. [DOI: 10.1016/j.fertnstert.2018.08.015] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/03/2018] [Accepted: 08/03/2018] [Indexed: 01/01/2023]
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More Prevalent Prescription of Medicine for Hypertension and Metabolic Syndrome in Males from Couples Undergoing Intracytoplasmic Sperm Injection. Sci Rep 2018; 8:14521. [PMID: 30266963 PMCID: PMC6162299 DOI: 10.1038/s41598-018-32813-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 09/12/2018] [Indexed: 12/13/2022] Open
Abstract
Register-based studies have indicated that men with impaired fertility are at higher risk for developing various adult-onset diseases than fertile men. The majority of men undergoing ICSI treatment are sub-fertile and since they are in contact with the health care system, these men are well suited as target for preventive measures. Our study included all men (N = 459 766) who had fathered children in Sweden between 2006 and 2016. Swedish registry data was used for obtaining information regarding conception method and defining three groups of fathers – ICSI -treated, IVF – treated and non IVF/ICSI. By sourcing data from the Swedish Prescribed Drug Register, we specifically searched for information regarding prescription and usage of at least one prescription for diabetes mellitus, hypertension (HT) or dyslipidemia to serve as a proxy for metabolic disease among the study groups. If all three types of medicine were prescribed, the patient was considered as having metabolic syndrome. Our results indicate male partners in couples who became parents using ICSI to be at higher risk for being treated for hypertension (HR = 1.15 95% CI: 1.06–1.24, p = 0.001) and metabolic syndrome (HR = 1.28 95% CI: 1.01–1.58, p = 0.042) when compared to non IVF/ICSI men.
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Cazzaniga W, Capogrosso P, Ventimiglia E, Pederzoli F, Boeri L, Frego N, Abbate C, Alfano M, Viganò P, Montorsi F, Salonia A. High Blood Pressure Is a Highly Prevalent but Unrecognised Condition in Primary Infertile Men: Results of a Cross-sectional Study. Eur Urol Focus 2018; 6:178-183. [PMID: 30082228 DOI: 10.1016/j.euf.2018.07.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 06/24/2018] [Accepted: 07/20/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND Although most of the components related to metabolic syndrome were shown to have a detrimental effect on male fertility, the effects of high blood pressure (HBP) have been partially analysed. OBJECTIVE To investigate the prevalence and impact of hypertension on clinical and semen parameters in a cohort of white European men presenting for couple's infertility at a single tertiary referral academic centre. DESIGN, SETTING, AND PARTICIPANTS A cross-sectional study was performed including analysis of data from 2185 primary infertile men. Comorbidities were scored with Charlson Comorbidity Index (CCI; categorised 0 vs ≥1). HBP was defined as blood pressure ≥140/90mmHg. Semen analyses followed the 2010 World Health Organization reference criteria. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Descriptive statistics and logistic regression analyses tested the association among semen parameters, clinical characteristics, and HBP. RESULTS AND LIMITATIONS Overall, HBP was found in 6.8% of infertile patients and in 3.6% of age-comparable men without known fertility problems. Of 148 patients, 85 (58%) were either unaware of their HBP or not adequately medically-controlled. +HBP men were older (median age [interquartile range], 37 [33-40] vs 39 [36-44] yr; p<0.001), had higher CCI scores (X2=25.6; p<0.001), higher BMI (25.1 [23.3-27.3] vs 26.8 [24.9-29.4]; p<0.001), and a waist circumference >102cm in a greater proportion of individuals (41% vs 23%; X2=4.68 p<0.05) than -HBP men. Hypertensive and normotensive men did not differ in terms of hormonal milieu and semen parameters. Patients did not differ in terms of HPB rates according to oligozoospermia, asthenozoospermia, and teratozoospermia status. The lack of a real control group represents the main limitation of the study. CONCLUSIONS Hypertension and unrecognised or not adequately controlled HBP are highly prevalent among white European primary infertile men. Hypertension per se did not have an impact on hormonal and semen parameters. PATIENT SUMMARY Because of its effects in terms of overall prospective men's health, high blood pressure must be comprehensively considered over the basic work-up of every infertile man in the outpatient clinic setting.
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Affiliation(s)
- Walter Cazzaniga
- Division of Experimental Oncology/Unit of Urology; URI; IRCCS Ospedale San Raffaele, Milan, Italy; University Vita-Salute San Raffaele, Milan, Italy
| | - Paolo Capogrosso
- Division of Experimental Oncology/Unit of Urology; URI; IRCCS Ospedale San Raffaele, Milan, Italy; University Vita-Salute San Raffaele, Milan, Italy
| | - Eugenio Ventimiglia
- Division of Experimental Oncology/Unit of Urology; URI; IRCCS Ospedale San Raffaele, Milan, Italy; University Vita-Salute San Raffaele, Milan, Italy
| | - Filippo Pederzoli
- Division of Experimental Oncology/Unit of Urology; URI; IRCCS Ospedale San Raffaele, Milan, Italy; University Vita-Salute San Raffaele, Milan, Italy
| | - Luca Boeri
- Division of Experimental Oncology/Unit of Urology; URI; IRCCS Ospedale San Raffaele, Milan, Italy; Department of Urology, IRCCS Fondazione Ca' Granda - Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Nicola Frego
- Division of Experimental Oncology/Unit of Urology; URI; IRCCS Ospedale San Raffaele, Milan, Italy; University Vita-Salute San Raffaele, Milan, Italy
| | - Costantino Abbate
- Division of Experimental Oncology/Unit of Urology; URI; IRCCS Ospedale San Raffaele, Milan, Italy
| | - Massimo Alfano
- Division of Experimental Oncology/Unit of Urology; URI; IRCCS Ospedale San Raffaele, Milan, Italy
| | - Paola Viganò
- Infertility Unit, Unit of Obstetrics/Gynecology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Francesco Montorsi
- Division of Experimental Oncology/Unit of Urology; URI; IRCCS Ospedale San Raffaele, Milan, Italy; University Vita-Salute San Raffaele, Milan, Italy
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology; URI; IRCCS Ospedale San Raffaele, Milan, Italy; University Vita-Salute San Raffaele, Milan, Italy.
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Drobnis EZ, Nangia AK. Cardiovascular/Pulmonary Medications and Male Reproduction. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1034:103-130. [PMID: 29256129 DOI: 10.1007/978-3-319-69535-8_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cardiovascular and respiratory medications are used by men of reproductive age although use of the former is most prevalent in advanced age. Many of these drugs have been associated with sexual dysfunction, including erectile and ejaculatory dysfunction, but for most there is insufficient evidence to link their use with testicular dysfunction, reduced semen quality or infertility. Some exceptions are the irreversible α1-adrenergic antagonist phenoxybenzamine, which carries a high risk of retrograde ejaculation; the specific α1A-adrenergic antagonists silodosin and tamsulosin, used primarily to treat BPH/lower urinary tract symptoms, which can cause retrograde ejaculation; and the peripheral β1-adrenergic antagonist atenolol, used to treat hypertension, which may decrease testosterone/free-testosterone levels. In this chapter, we review the evidence available regarding adverse reactions on male reproduction of adrenergic receptor agonists/antagonists, calcium channel blockers, angiotensin converting enzyme (ACE) inhibitors, diuretics, digoxin, and hydralazine. For some of these medications, there is some evidence for male reproductive effects, along with some solid work in experimental and companion animal species suggesting negative effects. In contrast, and of special note, are calcium channel blockers, which have long been included on lists of medications with the potential to cause male infertility. This turns out to be a good example of a substance with profound effects on sperm function in vitro, but with limited evidence for in vivo effects on semen quality or fertility, even in experimental species. We hope that the evidence provided in this chapter will stimulate additional studies for these important classes of medications.
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Affiliation(s)
- Erma Z Drobnis
- Obstetrics, Gynecology and Women's Health, University of Missouri School of Medicine, Columbia, MO, USA
| | - Ajay K Nangia
- Department of Urology, University of Kansas Medical Center, Kansas City, KS, USA
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