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Nguyen ALV, Julian S, Weng N, Flannigan R. Advances in human In vitro spermatogenesis: A review. Mol Aspects Med 2024; 100:101320. [PMID: 39317014 DOI: 10.1016/j.mam.2024.101320] [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: 03/27/2024] [Revised: 07/26/2024] [Accepted: 09/18/2024] [Indexed: 09/26/2024]
Abstract
Recent advances surrounding in vitro spermatogenesis (IVS) have shown potential in creating a new paradigm of regenerative medicine in the future of fertility treatments for males experiencing non-obstructive azoospermia (NOA). Male infertility is a common condition affecting approximately 15% of couples, with azoospermia being present in 15% of infertile males (Cocuzza et al., 2013; Esteves et al., 2011a). Treatment for patients with NOA has primarily been limited to surgical sperm retrieval combined with in vitro fertilization intracytoplasmic sperm injection (IVF-ICSI); however, sperm retrieval is successful in only half of these patients, and live birth rates typically range between 10 and 25% (Aljubran et al., 2022). Therefore, a significant need exists for regenerative therapies in this patient population. IVS has been considered as a model for further understanding the molecular and cellular processes of spermatogenesis and as a potential regenerative therapeutic approach. While 2D cell cultures using human testicular cells have been attempted in previous research, lack of proper spatial arrangement limits germ cell differentiation and maturation, posing challenges for clinical application. Recent research suggests that 3D technology may have advantages for IVS due to mimicry of the native cytoarchitecture of human testicular tissue along with cell-cell communication directly or indirectly. 3D organotypic cultures, scaffolds, organoids, microfluidics, testis-on-a-chip, and bioprinting techniques have all shown potential to contribute to the technology of regenerative treatment strategies, including in vitro fertilization (IVF). Although promising, further work is needed to develop technology for successful, replicable, and safe IVS for humans. The intersection between tissue engineering, molecular biology, and reproductive medicine in IVS development allows for multidisciplinary involvement, where challenges can be overcome to realize regenerative therapies as a viable option.
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Affiliation(s)
- Anna-Lisa V Nguyen
- Schulich School of Medicine and Dentistry, Western University, London, Ontario, UK.
| | - Sania Julian
- Faculty of Integrated Sciences, University of British Columbia, Vancouver, British Columbia, Canada; Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada.
| | - Ninglu Weng
- Faculty of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.
| | - Ryan Flannigan
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada; Department of Urology, Weill Cornell Medicine, New York, NY, USA.
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Li C, Wang Y, Mu R, Zhao J, Yao Z, Zhai J, Jin Y, Liu R, Liu D, Hong K, Jiang H, Zhang Z. Urate-lowering agents do not have clinically relevant negative effects on sperm quality and reproductive hormones in men with gout: a prospective open-label cohort study. Rheumatol Int 2024; 44:1245-1253. [PMID: 38538820 DOI: 10.1007/s00296-024-05572-x] [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: 01/19/2024] [Accepted: 02/26/2024] [Indexed: 06/15/2024]
Abstract
OBJECTIVE The objective of this study was to analyze and compare the effects of different urate-lowering agents on testicular functions in men with gout in a clinical setting. METHODS In this prospective cohort study (Clinical Trial Registration Number: NCT04213534), a total of 49 male patients aged 18-45 years with gout were enrolled. They were divided into three groups and received treatment with either allopurinol, febuxostat or benzbromarone for a duration of 3 months. Semen parameters, reproductive hormones and biochemical assessments were evaluated at baseline, month 1, and month 3. RESULTS Overall, 40 individuals (81.6%) completed the follow-up visits. In allopurinol group, there were no significant differences in semen parameters from baseline to month 3. Most of sperm parameters in febuxostat group did not show notable changes, except for a decrease in sperm motility at month 3(33.6%, [22.9-54.3] vs 48.4%, [27.4-67.6], p = 0.033). However, the total motile sperm count did not differ significantly after febuxostat treatment. Surprisingly, administration of benzbromarone resulted in improved sperm concentration (37.19 M/mL, [29.6-69.92] vs 58.5 M/mL, [49.8-116.6], p = 0.001). There were no significant changes observed in sperm DNA integrity and reproductive hormones in the three groups from baseline to month 3. The incidence of adverse events did not differ significantly among the three groups as well. CONCLUSION This study is the first to demonstrate that urate-lowering agents, allopurinol and febuxostat, do not have clinically relevant negative effects on sperm quality and reproductive hormones in men with gout, and benzbromarone presents improving sperm concentration. Results provide important preliminary guidance for the development of reproductive health management guidelines for patients RCID with gout.
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Affiliation(s)
- Changhong Li
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Yuanyuan Wang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, 100191, China
| | - Rong Mu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Jinxia Zhao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Zhongqiang Yao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Jiayu Zhai
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Yinji Jin
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Rui Liu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Defeng Liu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, 100191, China
- Department of Urology, Peking University Third Hospital, Beijing, 100191, China
| | - Kai Hong
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, 100191, China
- Department of Urology, Peking University Third Hospital, Beijing, 100191, China
| | - Hui Jiang
- Department of Urology, Peking University First Hospital, Beijing, 100034, China.
- Institute of Urology, Peking University, Beijing, 100034, China.
| | - Zhe Zhang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, 100191, China.
- Department of Urology, Peking University Third Hospital, Beijing, 100191, China.
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Mascarenhas C, Sousa ACA, Rato L. Effects of Pharmaceutical Substances with Obesogenic Activity on Male Reproductive Health. Int J Mol Sci 2024; 25:2324. [PMID: 38397000 PMCID: PMC10889417 DOI: 10.3390/ijms25042324] [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: 12/30/2023] [Revised: 01/28/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Obesogens have been identified as a significant factor associated with increasing obesity rates, particularly in developed countries. Substances with obesogenic traits are prevalent in consumer products, including certain pharmaceuticals. Specific classes of pharmaceuticals have been recognized for their ability to induce weight gain, often accompanied by hormonal alterations that can adversely impact male fertility. Indeed, research has supplied evidence underscoring the crucial role of obesogens and therapeutic agents in the normal functioning of the male reproductive system. Notably, sperm count and various semen parameters have been closely linked to a range of environmental and nutritional factors, including chemicals and pharmacological agents exhibiting obesogenic properties. This review aimed to explore studies focused on analyzing male fertility parameters, delving into the intricacies of sperm quality, and elucidating the direct and adverse effects that pharmacological agents may have on these aspects.
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Affiliation(s)
- Caio Mascarenhas
- School of Health, Polytechnic Institute of Guarda, 6300-035 Guarda, Portugal;
| | - Ana C. A. Sousa
- Department of Biology, School of Science and Technology, University of Évora, 7006-554 Évora, Portugal;
- Comprehensive Health Research Centre (CHRC), University of Évora, 7000-671 Évora, Portugal
| | - Luís Rato
- School of Health, Polytechnic Institute of Guarda, 6300-035 Guarda, Portugal;
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
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Mazzilli R, Zamponi V, Mangini F, Olana S, Defeudis G, Faggiano A, Gianfrilli D. The effects of non-andrological medications on erectile dysfunction: a large single-center retrospective study. J Endocrinol Invest 2023:10.1007/s40618-023-02011-9. [PMID: 36656432 PMCID: PMC9850328 DOI: 10.1007/s40618-023-02011-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 01/09/2023] [Indexed: 01/20/2023]
Abstract
PURPOSE To evaluate the association among andrological diseases at the first outpatient visit and the medications taken by patients for other comorbidities, as well as the differential impact between specific medication and relative comorbidities. METHODS This is a single-center retrospective study based on subjects who referred to the Andrology Unit with a well-defined andrological diagnosis. RESULTS A total of 3752 subjects were studied (mean age ± DS 46.2 ± 16.5 years). A total of 19 categories of andrological diseases and 110 type of medications for other comorbidities were identified. ED was the most frequent andrological pathology at the first andrological examination (28.7%), followed by infertility (12.4%). The couple of variables that were statistically significant in the univariate association analysis (p < 0.001) were: ED and (a) antihypertensives; (b) antihyperglycemics; (c) lipids-lowering; (d) psychotropics. The univariate and multivariate regression analyses confirmed the association. All the related comorbidities were also significantly associated with the univariate analysis, and all remained significantly associated with multivariate analysis. A multivariate analysis was also conducted to analyze the association between ED and the following pairs of variables "DM-antihyperglycemics", "dyslipidemia-lipids-lowering", and "hypertension-antihypertensives". In all cases, the pathology, but not the specific treatment, was significantly associated with ED. CONCLUSION ED is significantly associated with antihypertensive, antihyperglycemic, lipid-lowering, psychotropic drugs' intake. Anyway, ED appears to be more related to the diseases than to the specific therapies. The definitive cause/effect relationship should be established based on future prospective studies.
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Affiliation(s)
- R Mazzilli
- Endocrinology and Andrology Unit, Department of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, Via di Grottarossa 1036-1039, 00100, Rome, Italy.
| | - V Zamponi
- Endocrinology and Andrology Unit, Department of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, Via di Grottarossa 1036-1039, 00100, Rome, Italy
| | - F Mangini
- Endocrinology and Andrology Unit, Department of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, Via di Grottarossa 1036-1039, 00100, Rome, Italy
| | - S Olana
- Endocrinology and Andrology Unit, Department of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, Via di Grottarossa 1036-1039, 00100, Rome, Italy
| | - G Defeudis
- Unit of Endocrinology and Diabetes, Department of Medicine, University Campus Bio-Medico di Roma, Rome, Italy
| | - A Faggiano
- Endocrinology and Andrology Unit, Department of Clinical and Molecular Medicine, Sapienza University of Rome, Sant'Andrea Hospital, Via di Grottarossa 1036-1039, 00100, Rome, Italy
| | - D Gianfrilli
- Endocrinology and Andrology Unit, Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
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Li Y, Peng Q, Shang J, Dong W, Wu S, Guo X, Xie Z, Chen C. The role of taurine in male reproduction: Physiology, pathology and toxicology. Front Endocrinol (Lausanne) 2023; 14:1017886. [PMID: 36742382 PMCID: PMC9889556 DOI: 10.3389/fendo.2023.1017886] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 01/04/2023] [Indexed: 01/20/2023] Open
Abstract
Taurine, a sulfur-containing amino acid, has a wide range of biological effects, such as bile salt formation, osmotic regulation, oxidative stress inhibition, immunomodulation and neuromodulation. Taurine has been proved to be synthesized and abundant in male reproductive organs. Recently, accumulating data showed that taurine has a potential protective effect on reproductive function of male animals. In physiology, taurine can promote the endocrine function of the hypothalamus-pituitary-testis (HPT) axis, testicular tissue development, spermatogenesis and maturation, delay the aging of testicular structure and function, maintain the homeostasis of the testicular environment, and enhance sexual ability. In pathology, taurine supplement may be beneficial to alleviate pathological damage of male reproductive system, including oxidative damage of sperm preservation in vitro, testicular reperfusion injury and diabetes -induced reproductive complications. In addition, taurine acts as a protective agent against toxic damage to the male reproductive system by exogenous substances (e.g., therapeutic drugs, environmental pollutants, radiation). Related mechanisms include reduced oxidative stress, increased antioxidant capacity, inhibited inflammation and apoptosis, restored the secretory activity of the HPT axis, reduced chromosomal variation, enhanced sperm mitochondrial energy metabolism, cell membrane stabilization effect, etc. Therefore, this article reviewed the protective effect of taurine on male reproductive function and its detailed mechanism, in order to provide reference for further research and clinical application.
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Affiliation(s)
- Yuanyuan Li
- Institute of Nursing and Health, School of Nursing and Health, Henan University, Kaifeng, Henan, China
| | - Qianwen Peng
- Institute of Nursing and Health, School of Nursing and Health, Henan University, Kaifeng, Henan, China
| | - Jia Shang
- Arts Department, School of Kaifeng Culture and Tourism, Henan, Kaifeng, China
| | - Wanglin Dong
- Institute of Nursing and Health, School of Nursing and Health, Henan University, Kaifeng, Henan, China
| | - Sijia Wu
- Institute of Nursing and Health, School of Nursing and Health, Henan University, Kaifeng, Henan, China
| | - Xiajun Guo
- Institute of Nursing and Health, School of Nursing and Health, Henan University, Kaifeng, Henan, China
| | - Zhenxing Xie
- School of Basic Medical Science, Henan University, Henan, Kaifeng, China
| | - Chaoran Chen
- Institute of Nursing and Health, School of Nursing and Health, Henan University, Kaifeng, Henan, China
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Mendes S, Sá R, Magalhães M, Marques F, Sousa M, Silva E. The Role of ROS as a Double-Edged Sword in (In)Fertility: The Impact of Cancer Treatment. Cancers (Basel) 2022; 14:cancers14061585. [PMID: 35326736 PMCID: PMC8946252 DOI: 10.3390/cancers14061585] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 12/22/2022] Open
Abstract
Simple Summary Tumor cells are highly resistant to oxidative stress, but beyond a certain threshold, it may lead to apoptosis/necrosis. Thus, induced loss of redox balance can be a strategy used in anticancer therapies. However, the effectiveness of drugs contrasts with unknown mechanisms involved in the loss of fertility. Considering that cancer patients’ life expectancy is increasing, it raises concerns about the unknown adverse effects. Therefore, new strategies should be pursued alongside explaining to the patients their options regarding the reproduction side effects. Abstract Tumor cells are highly resistant to oxidative stress resulting from the imbalance between high reactive oxygen species (ROS) production and insufficient antioxidant defenses. However, when intracellular levels of ROS rise beyond a certain threshold, largely above cancer cells’ capacity to reduce it, they may ultimately lead to apoptosis or necrosis. This is, in fact, one of the molecular mechanisms of anticancer drugs, as most chemotherapeutic treatments alter redox homeostasis by further elevation of intracellular ROS levels or inhibition of antioxidant pathways. In traditional chemotherapy, it is widely accepted that most therapeutic effects are due to ROS-mediated cell damage, but in targeted therapies, ROS-mediated effects are mostly unknown and data are still emerging. The increasing effectiveness of anticancer treatments has raised new challenges, especially in the field of reproduction. With cancer patients’ life expectancy increasing, many aiming to become parents will be confronted with the adverse effects of treatments. Consequently, concerns about the impact of anticancer therapies on reproductive capacity are of particular interest. In this review, we begin with a short introduction on anticancer therapies, then address ROS physiological/pathophysiological roles in both male and female reproductive systems, and finish with ROS-mediated adverse effects of anticancer treatments in reproduction.
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Affiliation(s)
- Sara Mendes
- Department of Physical Education and Sports, University Institute of Maia (ISMAI), 4475-690 Maia, Portugal;
- Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), 5001-801 Vila Real, Portugal
| | - Rosália Sá
- Laboratory of Cell Biology, Department of Microscopy, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.S.); (M.S.)
- Unit for Multidisciplinary Research in Biomedicine (UMIB), Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, 4099-002 Porto, Portugal;
| | - Manuel Magalhães
- Unit for Multidisciplinary Research in Biomedicine (UMIB), Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, 4099-002 Porto, Portugal;
- Department of Oncology, University Hospital Center of Porto (CHUP), Largo do Prof. Abel Salazar, 4099-001 Porto, Portugal;
| | - Franklim Marques
- Department of Oncology, University Hospital Center of Porto (CHUP), Largo do Prof. Abel Salazar, 4099-001 Porto, Portugal;
| | - Mário Sousa
- Laboratory of Cell Biology, Department of Microscopy, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.S.); (M.S.)
- Unit for Multidisciplinary Research in Biomedicine (UMIB), Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, 4099-002 Porto, Portugal;
| | - Elisabete Silva
- Laboratory of General Physiology, Department of Immuno-Physiology and Pharmacology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- Institute for Molecular and Cell Biology (IBMC), Institute for Research & Innovation in Health (I3S), University of Porto, Rua Alfredo Allen, 4200-135 Porto, Portugal
- Correspondence:
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Risk of cancer in individuals with alcohol and drug use disorders: a registry-based study in Reggio Emilia, Italy. Eur J Cancer Prev 2021; 29:270-278. [PMID: 32134400 DOI: 10.1097/cej.0000000000000553] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Aims of this population-based cohort study was to compare the overall and site-specific cancer incidence in individuals with alcohol or drug use disorders with incidence of the general population, and to estimate excess cancer risk in a subgroup of individuals who have hepatitis C virus or HIV infection. The study included 4373 residents of Reggio Emilia province diagnosed with alcohol or drug use disorders during the period from 1 January 1985 to 31 December 2014. All newly diagnosed cancers registered from 1 January 1996 to 31 December 2014 were taken into account to calculate the standardised incidence ratio (SIR) of cancers of any site and of site-specific cancers. SIR of cancer at any site was 1.6 (95% confidence interval [CI] 1.4-1.9). Anogenital cancers were associated with the highest excess risk (SIR=11.9; 95% CI 4.9-28.5), followed by oesophageal (SIR=9.5; 95% CI 3.6-25.3) and cervical cancer (SIR=8.6; 95% CI 2.8-26.7). Excess risk of all cancer sites, except for breast cancer, was observed among individuals with alcohol use disorders and of all cancer sites, except breast and kidney cancers, among individuals with drug use disorders. Among hepatitis C virus-positive individuals, cancer at any site risk was 1.9 (95% CI 1.2-3.1) and among HIV-infected individuals it was 3.3 (95% CI 1.8-5.7). Individuals with alcohol and drug use disorders face a higher risk of various cancers. Effective interventions to prevent or reduce the harm of substance abuse and risky behaviours in this population are warranted.
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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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Krzastek SC, Farhi J, Gray M, Smith RP. Impact of environmental toxin exposure on male fertility potential. Transl Androl Urol 2020; 9:2797-2813. [PMID: 33457251 PMCID: PMC7807371 DOI: 10.21037/tau-20-685] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 10/18/2020] [Indexed: 11/06/2022] Open
Abstract
Idiopathic infertility is the most common individual diagnosis in male infertility, representing nearly 44% of cases. Research studies dating over the last half-century consistently demonstrate a decline in male fertility that is incompletely explained by obesity, known genetic causes, or diet and lifestyle changes alone. Human exposures have changed dramatically over the same time course as this fertility decline. Synthetic chemicals surround us. Some are benevolent; however, many are known to cause disruption of the hypothalamic-pituitary-gonadal axis and impair spermatogenesis. More than 80,000 chemicals are registered with the United States National Toxicology Program and nearly 2,000 new chemicals are introduced each year. Many of these are known toxins, such as phthalates, polycyclic aromatic hydrocarbons, aromatic amines, and organophosphate esters, and have been banned or significantly restricted by other countries as they carry known carcinogenic effects and are reproductively toxic. In the United States, many of these chemicals are still permissible in exposure levels known to cause reproductive harm. This contrasts to other chemical regulatory legislature, such as the European Union's REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulations which are more comprehensive and restrictive. Quantification of these diverse exposures on an individual level has proven challenging, although forthcoming technologies may soon make this data available to consumers. Establishing causality and the proportion of idiopathic infertility attributable to environmental toxin exposures remains elusive, however, continued investigation, avoidance of exposure, and mitigation of risk is essential to our reproductive health. The aim of this review is to examine the literature linking changes in male fertility to some of the most common environmental exposures. Specifically, pesticides and herbicides such as dichlorodiphenyltrichloroethane (DDT), dibromochloropropane (DBCP), organophosphates and atrazine, endocrine disrupting compounds including plastic compounds phthalates and bisphenol A (BPA), heavy metals, natural gas/oil, non-ionizing radiation, air and noise pollution, lifestyle factors including diet, obesity, caffeine use, smoking, alcohol and drug use, as well as commonly prescribed medications will be discussed.
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Affiliation(s)
- Sarah C. Krzastek
- Department of Urology, University of Virginia, Charlottesville, VA, USA
- Division of Urology, Virginia Commonwealth University, Richmond, VA, USA
- Division of Urology, Hunter Holmes McGuire VAMC, Richmond, VA, USA
| | - Jack Farhi
- Department of Urology, University of Virginia, Charlottesville, VA, USA
| | - Marisa Gray
- Department of Urology, University of Virginia, Charlottesville, VA, USA
| | - Ryan P. Smith
- Department of Urology, University of Virginia, Charlottesville, VA, USA
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Molecular and hormonal changes caused by long-term use of high dose pregabalin on testicular tissue: the role of p38 MAPK, oxidative stress and apoptosis. Mol Biol Rep 2020; 47:8523-8533. [PMID: 33051752 DOI: 10.1007/s11033-020-05894-6] [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: 07/05/2020] [Accepted: 10/03/2020] [Indexed: 01/20/2023]
Abstract
In 1990, pregabalin was introduced as a novel antiepileptic drug that acts by binding selectively to the alpha-2-delta subunits of voltage-gated calcium channels resulting in increasing neuronal GABA levels and inhibiting the release of exciting neurotransmitters. The aim of our study is to assess the hazardous effects of prolonged high-dose pregabalin (like that abused by addicts) on testes and to clarify the potential causative mechanisms. The current study was conducted on 70 adult male Wistar albino rats which were divided into 7 groups. In our study we evaluated the effect of pregabalin, at concentrations 150 and 300 mg/kg/day for 90 days, on hormones; FSH, LH, testosterone and prolactin secretion. Our study also evaluated the expression of apoptosis-related genes BAX and BCL2 in testicular tissue in addition to the western blotted analysis of p38 Mitogen activated protein kinases (p38 MAPK). The levels of reduced glutathione, malondialdehyde and superoxide dismutase were also measured. Pregabalin decreased testosterone level while FSH, LH and prolactin showed a significant increase. It also produced genotoxicity through reversal of the BAX/BCL2 ratio; increased p38 MAPK level and induction of oxidative stress markers. The concomitant administration of vitamin E significantly reduced all the previously mentioned biochemical and hormonal adverse effects caused by pregabalin. Pregabalin can adversely affect male fertility particularly in addicts and patients who are being treated with it for long periods as those suffering from neuropathies and seizures. Antioxidants like vitamin E could have a role in amelioration.
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Yang H, Kuhn C, Kolben T, Ma Z, Lin P, Mahner S, Jeschke U, von Schönfeldt V. Early Life Oxidative Stress and Long-Lasting Cardiovascular Effects on Offspring Conceived by Assisted Reproductive Technologies: A Review. Int J Mol Sci 2020; 21:ijms21155175. [PMID: 32707756 PMCID: PMC7432066 DOI: 10.3390/ijms21155175] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/18/2020] [Accepted: 07/20/2020] [Indexed: 02/06/2023] Open
Abstract
Assisted reproductive technology (ART) has rapidly developed and is now widely practised worldwide. Both the characteristics of ART (handling gametes/embryos in vitro) and the infertility backgrounds of ART parents (such as infertility diseases and unfavourable lifestyles or diets) could cause increased oxidative stress (OS) that may exert adverse influences on gametogenesis, fertilisation, and foetation, even causing a long-lasting influence on the offspring. For these reasons, the safety of ART needs to be closely examined. In this review, from an ART safety standpoint, the origins of OS are reviewed, and the long-lasting cardiovascular effects and potential mechanisms of OS on the offspring are discussed.
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Affiliation(s)
- Huixia Yang
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany; (H.Y.); (C.K.); (T.K.); (Z.M.); (P.L.); (S.M.); (V.v.S.)
| | - Christina Kuhn
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany; (H.Y.); (C.K.); (T.K.); (Z.M.); (P.L.); (S.M.); (V.v.S.)
- Department of Obstetrics and Gynecology, University Hospital Augsburg, 86156 Augsburg, Germany
| | - Thomas Kolben
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany; (H.Y.); (C.K.); (T.K.); (Z.M.); (P.L.); (S.M.); (V.v.S.)
| | - Zhi Ma
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany; (H.Y.); (C.K.); (T.K.); (Z.M.); (P.L.); (S.M.); (V.v.S.)
| | - Peng Lin
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany; (H.Y.); (C.K.); (T.K.); (Z.M.); (P.L.); (S.M.); (V.v.S.)
| | - Sven Mahner
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany; (H.Y.); (C.K.); (T.K.); (Z.M.); (P.L.); (S.M.); (V.v.S.)
| | - Udo Jeschke
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany; (H.Y.); (C.K.); (T.K.); (Z.M.); (P.L.); (S.M.); (V.v.S.)
- Department of Obstetrics and Gynecology, University Hospital Augsburg, 86156 Augsburg, Germany
- Correspondence: ; Tel.: +49-(0)821-400-165505
| | - Viktoria von Schönfeldt
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany; (H.Y.); (C.K.); (T.K.); (Z.M.); (P.L.); (S.M.); (V.v.S.)
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12
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Ajayi AF, Akhigbe RE. The physiology of male reproduction: Impact of drugs and their abuse on male fertility. Andrologia 2020; 52:e13672. [DOI: 10.1111/and.13672] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 04/28/2020] [Accepted: 05/04/2020] [Indexed: 12/16/2022] Open
Affiliation(s)
- Ayodeji Folorunsho Ajayi
- Department of Physiology College of Medicine Ladoke Akintola University of Technology Ogbomoso Nigeria
| | - Roland Eghoghosoa Akhigbe
- Department of Physiology College of Medicine Ladoke Akintola University of Technology Ogbomoso Nigeria
- Reproductive Biology and Toxicology Research Laboratories Oasis of Grace Hospital Osogbo Nigeria
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13
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Ilgin S. The adverse effects of psychotropic drugs as an endocrine disrupting chemicals on the hypothalamic-pituitary regulation in male. Life Sci 2020; 253:117704. [PMID: 32339542 DOI: 10.1016/j.lfs.2020.117704] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/18/2020] [Accepted: 04/18/2020] [Indexed: 02/01/2023]
Abstract
Adverse effects of drugs on male reproductive system can be categorized as pre-testicular, testicular, and post-testicular. Pre-testicular adverse effects disrupt the hypothalamic-pituitary-gonadal (HPG) axis, generally by interfering with endocrine function. It is known that the HPG axis has roles in the maintenance of spermatogenesis and sexual function. The hypothalamus secretes gonadotropin-releasing hormone (GnRH) which enters the hypophyseal portal system to stimulate the anterior pituitary. The anterior pituitary secretes gonadotropins, follicle-stimulating hormone (FSH) and luteinizing hormone (LH) which are vital for spermatogenesis, into the blood. The FSH stimulates the Sertoli cells for the production of regulatory molecules and nutrients needed for the maintenance of spermatogenesis, while the LH stimulates the Leydig cells to produce and secrete testosterone. Many neurotransmitters influence the hypothalamic-pituitary regulation, consequently the HPG axis, and can consequently affect spermatogenesis and sexual function. Psychotropic drugs including antipsychotics, antidepressants, and mood stabilizers that all commonly modulate dopamine, serotonin, and GABA, can affect male spermatogenesis and sexual function by impairment of the hypothalamic-pituitary regulation, act like endocrine-disrupting chemicals. Otherwise, studies have shown the relationship between decreased sperm quality and psychotropic drugs treatment. Therefore, it is important to investigate the adverse reproductive effects of psychotropic drugs which are frequently used during reproductive ages in males and to determine the role of the hypothalamic-pituitary regulation axis on possible pathologies.
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Affiliation(s)
- Sinem Ilgin
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Anadolu University, 26470 Eskisehir, Turkey.
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14
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Ku JY, Park MJ, Park HJ, Park NC, Joo BS. Combination of Korean Red Ginseng Extract and Hydrogen-Rich Water Improves Spermatogenesis and Sperm Motility in Male Mice. Chin J Integr Med 2020; 26:361-369. [PMID: 31919748 DOI: 10.1007/s11655-019-3047-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2018] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To investigate the effect of hydrogen-rich Korean Red Ginseng (KRG) water (HRGW) mixture on the spermatogenesis and sperm motility of mice of different ages. METHODS Eighty young (3 month-old) and aged (12 month-old) male mice were randomly assigned to 4 groups (n =10 per group) including control group, hydrogen-rich water (HRW) group (10 mL/kg daily), KRG group (50 mg/kg daily) and HRGW group (10 mL/kg and 50 mg/kg daily) by an oral zoned needle for 4 weeks. Sperm count and motility were measured using sperm suspension released from cauda epididymis. Serum follicle stimulating hormone (FSH), luteinizing hormone (LH), testosterone, and reactive oxygen species (ROS) in serum have also been estimated. Tubular changes were examined through histological hematoxylin and eosin staining. Expression of antioxidation (PPx3, PPx4, GSTm5 and GPx4), spermatogenesis (inhibin-a, neptin-2 and CREM), antiaging (SIRT1 and SIRT2), and angiogenesis [visfatin and vascular endothelial growth factor (VEGF)] related genes were examined through real-time polymerase chain reaction. RESULTS HRW and KRG treatment stimulated spermatogenesis followed by increasing sperm production and sperm motility (P <0.05). These effects were strengthened synergistically by a HRGW mixture (P <0.05 or P <0.01). HRGW greatly increased the expressions of antioxidation, antiaging, spermatogenesis related genes and VEGF especially in aged mice (P <0.05). Serum testosterone and FSH levels also increased, while serum ROS level decreased (all P <0.05). CONCLUSION HRGW increases sperm production and motility by enhancing antioxidation and stimulating spermatogenesis and sex hormone production, particularly in aged mice.
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Affiliation(s)
- Ja Yoon Ku
- Department of Urology, Pusan National University Hospital, Pusan National University School of Medicine, Busan, 49241, Republic of Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, 49241, Republic of Korea
| | - Min Jung Park
- The Korea Institute for Public Sperm Bank, Busan, 49241, Republic of Korea
| | - Hyun Jun Park
- Department of Urology, Pusan National University Hospital, Pusan National University School of Medicine, Busan, 49241, Republic of Korea
| | - Nam Cheol Park
- Department of Urology, Pusan National University Hospital, Pusan National University School of Medicine, Busan, 49241, Republic of Korea.,The Korea Institute for Public Sperm Bank, Busan, 49241, Republic of Korea
| | - Bo Sun Joo
- The Korea Institute for Public Sperm Bank, Busan, 49241, Republic of Korea.
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15
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Roychoudhury S, Saha MR, Saha MM. Environmental Toxicants and Male Reproductive Toxicity: Oxidation-Reduction Potential as a New Marker of Oxidative Stress in Infertile Men. NETWORKING OF MUTAGENS IN ENVIRONMENTAL TOXICOLOGY 2019. [DOI: 10.1007/978-3-319-96511-6_5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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16
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Simsek M, Opperman RCM, Mulder CJJ, Lambalk CB, de Boer NKH. The teratogenicity of allopurinol: A comprehensive review of animal and human studies. Reprod Toxicol 2018; 81:180-187. [PMID: 30125681 DOI: 10.1016/j.reprotox.2018.08.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/08/2018] [Accepted: 08/13/2018] [Indexed: 02/09/2023]
Abstract
Allopurinol is widely used in the management of multiple disorders including gout, kidney stones and inflammatory bowel disease. Despite of long-term experience, its safety in pregnancy has been debated due to reports on possible teratogenicity. We aimed to review the literature on the safety of allopurinol in pregnancy and offspring. In animals, allopurinol induced species-specific reproductive toxicity. In humans, a total of 53 allopurinol exposed infants were reported in the literature. Major congenital malformations were reported in two cases with a comparable pattern of multiple abnormalities. Five other infants had minor birth defects. In conclusion, the association between allopurinol and teratogenicity appears to be weak and limited to two reports with uncertain causality. However, the available data are insufficient to make a certain judgement, and as allopurinol treatment evolves, report and prospective follow-up of all exposed infants (i.e. deviant and normal cases) should be encouraged.
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Affiliation(s)
- Melek Simsek
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Gastroenterology and Hepatology, AG&M Research Institute, Amsterdam, The Netherlands.
| | - Roza C M Opperman
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Gastroenterology and Hepatology, AG&M Research Institute, Amsterdam, The Netherlands
| | - Chris J J Mulder
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Gastroenterology and Hepatology, AG&M Research Institute, Amsterdam, The Netherlands
| | - Cornelis B Lambalk
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Reproductive Medicine, Obstetrics and Gynecology, Amsterdam, The Netherlands
| | - Nanne K H de Boer
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Gastroenterology and Hepatology, AG&M Research Institute, Amsterdam, The Netherlands
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17
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Habous M, Giona S, Tealab A, Aziz M, Williamson B, Nassar M, Abdelrahman Z, Remeah A, Abdelkader M, Binsaleh S, Muir G. Clomiphene citrate and human chorionic gonadotropin are both effective in restoring testosterone in hypogonadism: a short-course randomized study. BJU Int 2018; 122:889-897. [DOI: 10.1111/bju.14401] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Mohamad Habous
- Urology and Andrology Department; Elaj Medical Centres; Jeddah Saudi Arabia
| | | | | | - Mohammed Aziz
- Urology Department; Menoufia University; Shibin Al Kawm Egypt
| | | | - Mohammed Nassar
- Urology and Andrology Department; Elaj Medical Centres; Jeddah Saudi Arabia
| | - Zeyad Abdelrahman
- Urology and Andrology Department; Elaj Medical Centres; Jeddah Saudi Arabia
| | - Abdallah Remeah
- Urology and Andrology Department; Elaj Medical Centres; Jeddah Saudi Arabia
| | - Mohamed Abdelkader
- Urology and Andrology Department; Elaj Medical Centres; Jeddah Saudi Arabia
| | - Saleh Binsaleh
- Division of Urology; Department of Surgery; Faculty of Medicine; King Saud University; Riyadh Saudi Arabia
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18
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Nikpour F, Tayefi H, Mohammadnejad D, Akbarzadeh A. Adverse Effects of Vincristine Chemotherapy on Cell Changes in Seminiferous Tubules and Cetrorelix GnRH Antagonist
Inhibitory Effects in Mice. Asian Pac J Cancer Prev 2018; 19:683-687. [PMID: 29580040 PMCID: PMC5980841 DOI: 10.22034/apjcp.2018.19.3.683] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The present study was designed to determine changes in spermatogenesis in adult mice after an intraperitoneal injection of vincristine. The effect of a GnRH antagonist synchronous to chemotherapy, which might protect spermatogenesis by halting cell division in spermatogenic cells, was also investigated.
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Affiliation(s)
- Fatemeh Nikpour
- Department of Histological Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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19
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Mercantepe T, Unal D, Tümkaya L, Yazici ZA. Protective effects of amifostine, curcumin and caffeic acid phenethyl ester against cisplatin-induced testis tissue damage in rats. Exp Ther Med 2018; 15:3404-3412. [PMID: 29545862 PMCID: PMC5840930 DOI: 10.3892/etm.2018.5819] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 01/24/2018] [Indexed: 02/02/2023] Open
Abstract
Cisplatin is an effective antineoplastic drug that is usually used to treat a number of different types of cancer in the clinic. One of the most notable side effects of cisplatin use is infertility. The present study was designed to determine the non-oxidative testicular effects caused by the use of cisplatin in rats. The rats were randomly allocated to the experimental groups. The untreated rats represented the control group (group I) and the treatment groups were as follows: cisplatin alone (group II), cisplatin+amifostine (group III), cisplatin+curcumin (group IV), and cisplatin+caffeic acid phenethyl ester (CAPE; group V). The present study observed that following cisplatin administration, the expression of nuclear factor-κB (NF-κβ)/p65, caspase-3 and 8-deoxyguanosine (8-OHdG) increased in germinal epithelium and Leydig cells. However, the expression of these markers decreased in groups III–V, most notably in the group treated with amifostine. cisplatin induced-damage was countered by amifostine and curcumin. The results revealed that the activation of NF-κB, caspase-3 and 8-OHdG had a significant role in cisplatin-induced testicular toxicity. Thus, amifostine, curcumin and, to a lesser extent, CAPE have the potential for use as therapeutic adjuvants in cisplatin-induced testis injury.
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Affiliation(s)
- Tolga Mercantepe
- Department of Histology and Embryology, Faculty of Medicine, Recep Tayyip Erdoğan University, Rize 53010, Turkey
| | - Deniz Unal
- Department of Histology and Embryology, Faculty of Medicine, Atatürk University, Erzurum 25000, Turkey
| | - Levent Tümkaya
- Department of Histology and Embryology, Faculty of Medicine, Recep Tayyip Erdoğan University, Rize 53010, Turkey
| | - Zihni Acar Yazici
- Department of Medical Microbiology, Faculty of Medicine, Recep Tayyip Erdoğan University, Rize 53010, Turkey
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20
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Semet M, Paci M, Saïas-Magnan J, Metzler-Guillemain C, Boissier R, Lejeune H, Perrin J. The impact of drugs on male fertility: a review. Andrology 2017. [PMID: 28622464 DOI: 10.1111/andr.12366] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Beside cytotoxic drugs, other drugs can impact men's fertility through various mechanisms. Via the modification of the hypothalamic-pituitary-gonadal axis hormones or by non-hormonal mechanisms, drugs may directly and indirectly induce sexual dysfunction and spermatogenesis impairment and alteration of epididymal maturation. This systematic literature review summarizes existing data about the negative impact and associations of pharmacological treatments on male fertility (excluding cytotoxic drugs), with a view to making these data more readily available for medical staff. In most cases, these effects on spermatogenesis/sperm maturation/sexual function are reversible after the discontinuation of the drug. When a reprotoxic treatment cannot be stopped and/or when the impact on semen parameters/sperm DNA is potentially irreversible (Sulfasalazine Azathioprine, Mycophenolate mofetil and Methotrexate), the cryopreservation of spermatozoa before treatment must be proposed. Deleterious impacts on fertility of drugs with very good or good level of evidence (Testosterone, Sulfasalazine, Anabolic steroids, Cyproterone acetate, Opioids, Tramadol, GhRH analogues and Sartan) are developed.
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Affiliation(s)
- M Semet
- Centre clinico-biologique d'Assistance Médicale à la Procréation - CECOS, Pole Femmes-Parents-Enfants, AP-HM La Conception, Marseille, France
| | - M Paci
- Centre clinico-biologique d'Assistance Médicale à la Procréation - CECOS, Pole Femmes-Parents-Enfants, AP-HM La Conception, Marseille, France.,Aix Marseille Univ, INSERM, GMGF UMR_S 910, Marseille, France
| | - J Saïas-Magnan
- Centre clinico-biologique d'Assistance Médicale à la Procréation - CECOS, Pole Femmes-Parents-Enfants, AP-HM La Conception, Marseille, France
| | - C Metzler-Guillemain
- Centre clinico-biologique d'Assistance Médicale à la Procréation - CECOS, Pole Femmes-Parents-Enfants, AP-HM La Conception, Marseille, France.,Aix Marseille Univ, INSERM, GMGF UMR_S 910, Marseille, France
| | - R Boissier
- Aix-Marseille University, Marseille, France.,Department of Urology and Renal Transplantation, APHM, Conception University Hospital, Marseille, France
| | - H Lejeune
- Service de Médecine de la Reproduction, Hôpital Femme Mère, Enfant, CHU de Lyon, Bron, France
| | - J Perrin
- Centre clinico-biologique d'Assistance Médicale à la Procréation - CECOS, Pole Femmes-Parents-Enfants, AP-HM La Conception, Marseille, France.,Aix Marseille Univ, Univ Avignon, CNRS, IRD, IMBE, Marseille, France
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21
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Kim SH, Lee IC, Ko JW, Shin IS, Moon C, Kim SH, Heo JD, Kim JC. Mechanism of protection by diallyl disulfide against cyclophosphamide-induced spermatotoxicity and oxidative stress in rats. Mol Cell Toxicol 2016. [DOI: 10.1007/s13273-016-0035-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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22
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Laganà AS, Vitale SG, Iaconianni P, Gatti S, Padula F. Male Infertility during Antihypertensive Therapy: Are We Addressing Correctly The Problem? INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2016; 10:267-269. [PMID: 27695607 PMCID: PMC5023036 DOI: 10.22074/ijfs.2016.4633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 05/14/2016] [Indexed: 12/30/2022]
Abstract
Male fertility significantly decreased in the last 50 years, as showed in several studies
reporting a reduction of sperm counts per ml in the seminal fluid. Several “acute”
pharmacological treatments, as antibiotics, could cause subclinical and temporary
reduction of male fertility; conversely, long-term medical treatment may severely
affect male fertility, although this effect could be considered transient in most of the
cases. Thus, nowadays, several long-term pharmacological treatments may represent a clinical challenge. The association between several kind of antihypertensive
drugs and reduction of male fertility has been showed in the mouse model, although
the modification(s) which may alter this fine-regulated machinery are still far to
be elucidated. Furthermore, well-designed observational studies and randomized
controlled trials are needed to accurately define this association in human model,
meaning a narrative overview synthesizing the findings of literature retrieved from
searches of computerized databases. We strongly solicit future human studies (both
observational and randomized clinical trials) on large cohorts with adequate
statistical power which may clarify this possible association and the effects (reversible or
permanent) of each drug. Furthermore, we suggest a close collaboration between
general practitioners, cardiologists, and andrologists in order to choose the most
appropriate antihypertensive therapy considering also patient’s reproductive desire
and possible risk for his fertility.
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Affiliation(s)
- Antonio Simone Laganà
- Unit of Gynecology and Obstetrics, Department of Human Pathology in Adulthood and Childhood "G. Barresi", University of Messina, Messina, Italy
| | - Salvatore Giovanni Vitale
- Unit of Gynecology and Obstetrics, Department of Human Pathology in Adulthood and Childhood "G. Barresi", University of Messina, Messina, Italy
| | - Paola Iaconianni
- Department of Reproductive Medicine, Altamedica Fetal Maternal Medical Centre, Rome, Italy
| | - Simona Gatti
- Department of Reproductive Medicine, Altamedica Fetal Maternal Medical Centre, Rome, Italy
| | - Francesco Padula
- Department of Prenatal Diagnosis, Altamedica Fetal Maternal Medical Centre, Rome, Italy
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23
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Pompe SV, Strobach D, Stief CG, Becker AJ, Trottmann M. Drug use among men with unfulfilled wish to father children: a retrospective analysis and discussion of specific drug classes. Pharmacoepidemiol Drug Saf 2016; 25:668-77. [DOI: 10.1002/pds.3986] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 01/11/2016] [Accepted: 01/27/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Sina V. Pompe
- Hospital Pharmacy; University Hospital of Munich (LMU) - Grosshadern; Munich Germany
- Department of Urology; University Hospital of Munich (LMU) - Grosshadern; Munich Germany
| | - Dorothea Strobach
- Hospital Pharmacy; University Hospital of Munich (LMU) - Grosshadern; Munich Germany
| | - Christian G. Stief
- Department of Urology; University Hospital of Munich (LMU) - Grosshadern; Munich Germany
| | - Armin J. Becker
- Department of Urology; University Hospital of Munich (LMU) - Grosshadern; Munich Germany
| | - Matthias Trottmann
- Department of Urology; University Hospital of Munich (LMU) - Grosshadern; Munich Germany
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24
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25
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26
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Agarwal A, Hamada A, Esteves SC. Engaging practicing gynecologists in the management of infertile men. J Obstet Gynaecol India 2015; 65:75-87. [PMID: 25883438 PMCID: PMC4395576 DOI: 10.1007/s13224-014-0623-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 09/16/2014] [Indexed: 12/01/2022] Open
Abstract
In the modern era, contemporary management of male infertility has undergone groundbreaking changes with the introduction of new concepts, advanced testing, and therapeutic interventions. As practicing gynecologists are often the first physicians who encounter an infertile couple, it is essential that these clinicians are continuously updated about the new pearls and pitfalls of male infertility management. Semen analysis is commonly ordered by gynecologists. In 2010, the WHO released new cutoff reference values for the semen parameters adopting novel methodology, which has incited much debate. Reference values have been lowered in comparison with previous standards, with a direct clinical implication in decision-making strategies. Specialized sperm-function tests, such as sperm oxidative stress and sperm chromatin integrity assessments, became clinically available, thus offering an opportunity to better understand sperm dysfunctions concealed during routine semen analysis. Furthermore, the initial counseling of azoospermic men by an andrologically well educated gynecologist may alleviate the misconception and distress surrounding the false belief of sterility, and will clarify the available options of percutaneous and microsurgical sperm-retrieval techniques and assisted conception outcome. Regarding varicocele, which is commonly seen in infertile males, it is now clear that the best treatment option for infertile men with clinical varicocele is the microsurgical vein ligation. Natural conception is significantly improved after varicocelectomy, and recent data suggest that such treatment optimizes reproductive outcome of couples undergoing ICSI or micro-TESE sperm retrieval. Lastly, new therapeutic interventions, including oral antioxidant therapy and lifestyle modifications, have gained increasing attention, as they aid in alleviating male infertility.
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Affiliation(s)
- Ashok Agarwal
- />Lerner College of Medicine, Andrology Center and Center for Reproductive Medicine, Cleveland Clinic, Mail Code X-11, 10681 Carnegie Avenue, Cleveland, OH 44195 USA
| | - Alaa Hamada
- />Department of Urology, Columbia University, New York, USA
| | - Sandro C. Esteves
- />Andrology and Human Reproduction Clinic, ANDROFERT, Av. Dr. Heitor Penteado, 1464, Campinas, SP 13075-460 Brazil
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27
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Jung JH, Seo JT. Empirical medical therapy in idiopathic male infertility: Promise or panacea? Clin Exp Reprod Med 2014; 41:108-14. [PMID: 25309854 PMCID: PMC4192450 DOI: 10.5653/cerm.2014.41.3.108] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 09/01/2014] [Accepted: 09/05/2014] [Indexed: 12/05/2022] Open
Abstract
Male factors account for 20%-50% of cases of infertility and in 25% of cases, the etiology of male infertility is unknown. Effective treatments are well-established for hypogonadotropic hypogonadism, male accessory gland infection, retrograde ejaculation, and positive antisperm antibody. However, the appropriate treatment for idiopathic male infertility is unclear. Empirical medical treatment (EMT) has been used in men with idiopathic infertility and can be divided into two categories based on the mode of action: hormonal treatment and antioxidant supplementation. Hormonal medications consist of gonadotropins, androgens, estrogen receptor blockers, and aromatase inhibitors. Antioxidants such as vitamins, zinc, and carnitines have also been widely used to reduce oxidative stress-induced spermatozoa damage. Although scientifically acceptable evidence of EMT is limited because of the lack of large, randomized, controlled studies, recent systematic reviews with meta-analyses have shown that the administration of gonadotropins, anti-estrogens, and oral antioxidants results in a significant increase in the live birth rate compared with control treatments. Therefore, all physicians who treat infertility should bear in mind that EMT can improve semen parameters and subsequent fertility potential through natural intercourse.
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Affiliation(s)
- Jae Hung Jung
- Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Ju Tae Seo
- Department of Urology, Cheil General Hospital, Kwandong University College of Medicine, Seoul, Korea
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28
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Grunewald S, Paasch U. Basic diagnostics in andrology. J Dtsch Dermatol Ges 2014; 11:799-814; quiz 815. [PMID: 23957479 DOI: 10.1111/ddg.12177] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Accepted: 06/17/2013] [Indexed: 12/23/2022]
Abstract
Basic andrological diagnosis consists of taking the patient's medical history and the couple's history as well as performing a physical examination including genital ultrasound, spermiogram, and hormonal analysis. If needed, a testicular biopsy and genetic testing may also be performed. Recent studies have shown the effect of lifestyle factors on male fertility. Thus, the patient history and clinical/andrological examinations have been broadened to include information on metabolic disorders like obesity and diabetes mellitus. The biggest changes occurred with the publication of the fifth edition of the WHO laboratory manual in 2010 and the introduction of a section on semen analysis in the German Medical Association guidelines (RiliBÄK). The reference values for almost all spermiogram parameters were adapted in an evidence-based approach using worldwide prospective population studies. For central parameters such as sperm motility and morphology, the assessment criteria were changed. New independent markers such as sperm DNA fragmentation rate are now routinely used in clinical diagnosis. For German andrological laboratories, there are now mandatory quality assurance measures for semen analysis (in the German "Rili-BÄK" guidelines). These include duplicate testing of all standard semen parameters and inter-laboratory comparison at regular intervals.
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Affiliation(s)
- Sonja Grunewald
- Clinic and Polyclinic for Dermatology, Venereology and Allergology, University Hospital Leipzig AöR and Leipzig Medical School of the University of Leipzig, Germany
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29
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Mohammadnejad D, Abedelahi A, Rashtbar M. Protective Role of GnRH Antagonist on Chemotherapy-induced Spermatogenesis Disorder: A Morphological Study. Adv Pharm Bull 2013; 3:323-8. [PMID: 24312855 DOI: 10.5681/apb.2013.052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Revised: 03/14/2013] [Accepted: 03/16/2013] [Indexed: 11/17/2022] Open
Abstract
PURPOSE Anti cancer drugs is one of the most important chemotherapeutic factors which can influence spermatogenesis process and germinal epithelium. Since dividing cells are mainly affected by anticancer drugs, the aim of the present study is to investigate the preventive effect of GnRH antagonist on spermatogenic defect produced by anticancer drugs. METHODS In the present study thirty adult male mice aging 6-8 weeks were divided into 3 groups as: Control, Experimental 1 and Experimental 2. Experimental 1 group received Cisplatin for 5 days as 2.5 mg/kg intraperitoneally and Experimental 2 group received 0.25 mg/kg cetrorelix (GnRH antagonist) one week before cisplatin treatment and continued for 3 weeks. The mice in all groups were sacrificed 35 days after the last injection and testis specimens were fixed in boueins, formaldehyde fixative and 2.5% Glutaraldehide then prepared for light and electron microscopic examination. RESULTS Light microscopy (LM) study showed that the number of spermatogonial cells, thickness of germinal epithelium, was decreased in Experimental 1group. Electron microscopy revealed that in this group several intercellular spaces appeared between spermatogenic cells and secretory granules in interstitial cells was increased. There were several vacuolated mitochondria and destroyed organelles in spermatogonial cells but in Experimental 2 group condition was similar to control group. CONCLUSION These results indicate that the cetrorelix administration before cancer treatment may protect germinal epithelium against side effects of cisplatin.
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Kim SH, Lee IC, Baek HS, Shin IS, Moon C, Kim SH, Yun WK, Nam KH, Kim HC, Kim JC. Melatonin prevents gentamicin-induced testicular toxicity and oxidative stress in rats. Andrologia 2013; 46:1032-40. [PMID: 24188423 DOI: 10.1111/and.12191] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2013] [Indexed: 11/26/2022] Open
Abstract
This study investigated the protective effects of melatonin (MT) against gentamicin (GM)-induced testicular toxicity and oxidative damage in rats. GM (100 mg kg(-1) ) was injected intraperitoneally (i.p.) to rats for 6 days. MT (15 mg kg(-1) ) was administered i.p. to rats for 6 days at 1 hr after the GM treatment. GM caused a decrease in prostate and seminal vesicle weights, sperm count and sperm motility. Histopathological examination showed various morphological alterations in the testis, characterised by degeneration of spermatogonia/spermatocytes, decrease in the number of early spermatogenic cells and vacuolisation. In addition, an increased malondialdehyde concentration and decreased glutathione content and glutathione reductase, catalase and glutathione-S-transferase activities were found in the testis. In contrast, MT treatment significantly attenuated the testicular toxicity of GM, including decreased reproductive organ weights, sperm count, and sperm motility and increased histopathological alterations. MT also had an antioxidant benefit by decreasing the lipid peroxidative product malondialdehyde and increasing the level of the antioxidant glutathione and the activities of antioxidant enzymes in the testis. These results indicate that MT prevents testicular toxicity induced by GM in rats, presumably due to its potent antioxidant activity, and its ability to inhibit lipid peroxidation, and restore antioxidant enzyme activity.
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Affiliation(s)
- S-H Kim
- College of Veterinary Medicine, Chonnam National University, Gwangju, South Korea
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Gan EH, Pattman S, H S Pearce S, Quinton R. A UK epidemic of testosterone prescribing, 2001-2010. Clin Endocrinol (Oxf) 2013; 79:564-70. [PMID: 23480258 DOI: 10.1111/cen.12178] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 02/03/2013] [Accepted: 02/19/2013] [Indexed: 12/01/2022]
Abstract
CONTEXT Testosterone replacement therapy is the standard treatment for male hypogonadism. There has lately been increased marketing in the medical media promoting testosterone replacement for men with erectile dysfunction or for older men with low serum testosterone, despite the lack of long-term safety and efficacy data. Therefore, we aimed to examine trends in testosterone prescribing in UK primary care over the last 10 years. METHODS Data about the use of testosterone preparations from the Departments of Health Prescription Cost Analysis for community pharmacies 2001-2010, for England, Scotland and Wales, were collated. Community requests for serum total testosterone assay in men to the Biochemistry Department at the Newcastle upon Tyne Hospitals Trust were also examined over the same time period. RESULTS The number of prescriptions for testosterone preparations increased by nearly 90% from 157 602 to 298 134 dispensed items annually, over a 10-year period. However, due to a particularly significant (fivefold) increase in prescribing of (more expensive) transdermal preparations, the cost to the NHS showed a 267% escalation, from £3·2 to £11·7 million, annually over the same period. Local requests from primary care in the Newcastle and North Tyneside area for serum testosterone measurement in men also increased, from 347 requests in 2000 to 823 requests in 2010, a 137% increase. However, the number of men with likely unequivocal hypogonadism (testosterone less than 6·0 nm) remained constant at 5·2% in 2000 and 6·3% in 2010. CONCLUSION Many men in the UK might be receiving testosterone replacement therapy with neither clearly established indications nor robustly diagnosed hypogonadism. A national registry for men treated with testosterone and further evidence to improve current guidance (national and/or international) on the indications for testosterone replacement would be beneficial.
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Affiliation(s)
- Earn H Gan
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK.
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Abstract
Now-a-days reproductive health problems along with infertility in male is very often observed. Various Assisted Reproductive Technologies have been introduced to solve the problem, but common people cannot afford the cost of such procedures. Various ayurvedic and other alternative medicines, along with regular yoga practice are proven to be not only effective to enhance the reproductive health in men to produce a successful pregnancy, but also to regulate sexual desire in men who practice celibacy. Yoga is reported to reduce stress and anxiety, improve autonomic functions by triggering neurohormonal mechanisms by the suppression of sympathetic activity, and even, today, several reports suggested regular yoga practice from childhood is beneficial for reproductive health. In this regard the present review is aimed to provide all the necessary information regarding the effectiveness of yoga practice to have a better reproductive health and to prevent infertility.
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Affiliation(s)
- Pallav Sengupta
- Department of Physiology, Vidyasagar College for Women, Kolkata, West Bengal, India
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Chapin RE, Boekelheide K, Cortvrindt R, van Duursen MBM, Gant T, Jegou B, Marczylo E, van Pelt AMM, Post JN, Roelofs MJE, Schlatt S, Teerds KJ, Toppari J, Piersma AH. Assuring safety without animal testing: the case for the human testis in vitro. Reprod Toxicol 2013; 39:63-8. [PMID: 23612449 DOI: 10.1016/j.reprotox.2013.04.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 03/05/2013] [Accepted: 04/04/2013] [Indexed: 12/22/2022]
Abstract
From 15 to 17 June 2011, a dedicated workshop was held on the subject of in vitro models for mammalian spermatogenesis and their applications in toxicological hazard and risk assessment. The workshop was sponsored by the Dutch ASAT initiative (Assuring Safety without Animal Testing), which aims at promoting innovative approaches toward toxicological hazard and risk assessment on the basis of human and in vitro data, and replacement of animal studies. Participants addressed the state of the art regarding human and animal evidence for compound mediated testicular toxicity, reviewed existing alternative assay models, and brainstormed about future approaches, specifically considering tissue engineering. The workshop recognized the specific complexity of testicular function exemplified by dedicated cell types with distinct functionalities, as well as different cell compartments in terms of microenvironment and extracellular matrix components. This complexity hampers quick results in the realm of alternative models. Nevertheless, progress has been achieved in recent years, and innovative approaches in tissue engineering may open new avenues for mimicking testicular function in vitro. Although feasible, significant investment is deemed essential to be able to bring new ideas into practice in the laboratory. For the advancement of in vitro testicular toxicity testing, one of the most sensitive end points in regulatory reproductive toxicity testing, such an investment is highly desirable.
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Affiliation(s)
- Robert E Chapin
- Drug Safety R&D, Pfizer, Inc., Eastern Point Road, Groton, CT 06340, USA.
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Affiliation(s)
- Stamatios Karavolos
- Obstetrics and Gynaecology; The Gateshead Fertility Unit; Queen Elizabeth Hospital; Gateshead; NE9 6SX; UK
| | - Jane Stewart
- Newcastle Fertility Centre at Life; International Centre for Life; Times Square; Newcastle upon Tyne; NE1 4EP; UK
| | - Isaac Evbuomwan
- The Gateshead Fertility Unit; Queen Elizabeth Hospital; Gateshead; NE9 6SX; UK
| | - Kevin McEleny
- Newcastle Fertility Centre at Life; International Centre for Life; Times Square; Newcastle upon Tyne; NE1 4EP; UK
| | - Ian Aird
- The Gateshead Fertility Unit; Queen Elizabeth Hospital; Gateshead; NE9 6SX; UK
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Cocuzza M, Alvarenga C, Pagani R. The epidemiology and etiology of azoospermia. Clinics (Sao Paulo) 2013; 68 Suppl 1:15-26. [PMID: 23503951 PMCID: PMC3583160 DOI: 10.6061/clinics/2013(sup01)03] [Citation(s) in RCA: 142] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Accepted: 03/29/2012] [Indexed: 12/19/2022] Open
Abstract
The misconception that infertility is typically associated with the female is commonly faced in the management of infertile men. It is uncommon for a patient to present for an infertility evaluation with an abnormal semen analysis report before an extensive female partner workup has been performed. Additionally, a man is usually considered fertile based only on seminal parameters without a physical exam. This behavior may lead to a delay in both the exact diagnosis and in possible specific infertility treatment. Moreover, male factor infertility can result from an underlying medical condition that is often treatable but could possibly be life-threatening. The responsibility of male factor in couple's infertility has been exponentially rising in recent years due to a comprehensive evaluation of reproductive male function and improved diagnostic tools. Despite this improvement in diagnosis, azoospermia is always the most challenging topic associated with infertility treatment. Several conditions that interfere with spermatogenesis and reduce sperm production and quality can lead to azoospermia. Azoospermia may also occur because of a reproductive tract obstruction. Optimal management of patients with azoospermia requires a full understanding of the disease etiology. This review will discuss in detail the epidemiology and etiology of azoospermia. A thorough literature survey was performed using the Medline, EMBASE, BIOSIS, and Cochrane databases. We restricted the survey to clinical publications that were relevant to male infertility and azoospermia. Many of the recommendations included are not based on controlled studies.
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Affiliation(s)
- Marcello Cocuzza
- Department of Urology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.
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Adisa J, Egbujo EM, Yahaya BA, Echejoh G. Primary infertility associated with schitosoma mansoni: a case report from the Jos plateau, north central Nigeria. Afr Health Sci 2012; 12:563-5. [PMID: 23515635 DOI: 10.4314/ahs.v12i4.26] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Testicular schistosomiasis caused by Schistosoma mansoni is very rare and more so when associated with primary infertility. A 40 years old man from the Jos Plateau, North Central Nigeria presented with primary infertility after ten years of marriage. Sperm count revealed oligospermia and he also complained of inability to sustain erection. Testicular biopsy revealed several ova of Schistosoma mansoni in the connective tissue of the testes. Cases of infertility in endemic areas especially when there is no supply of potable water should raise suspicion of schistosomiasis among other pathologies and possible hormonal disturbances when the testes are involved.
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Affiliation(s)
- J Adisa
- University of Jos, Medical laboratory Science, Nigeria.
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What every gynecologist should know about male infertility: an update. Arch Gynecol Obstet 2012; 286:217-29. [PMID: 22392488 DOI: 10.1007/s00404-012-2274-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Accepted: 02/21/2012] [Indexed: 10/28/2022]
Abstract
PURPOSE Our article reviews the evolving concepts in the field of male infertility for gynecologists and other health professionals involved in the care of men and women experiencing difficulty in having a child. The increased knowledge will help in the better management and treatment of infertile couples. METHODS Review of literature through Pubmed, Science Direct, Online Library. RESULTS Gynecologists are often the first healthcare providers to assess an infertile couple. Because half of all infertility problems stem from male factors, it is crucial for the gynecologist to remain updated on the main conditions that cause male infertility as well as current diagnostic tools and treatment options, including conventional strategies and assisted reproductive techniques. CONCLUSIONS Extraordinary advances have been achieved in the field of male infertility over the past several years and many old concepts are now challenged. Therefore, it is imperative that male infertility physicians should update the gynecologists about the recent advances in the work-up of infertile men in terms of diagnosis and management. Such convention will help improve the standards of care for the infertile couple and enhance the cooperation between male and female reproductive endocrinologists.
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Abstract
Knowledge of normal male reproductive function and familiarity with the diagnostic evaluation and treatment of male subfertility is beneficial for most physicians. Male subfertility is often correctable, may be genetically transmissible, and may be associated with occult health-threatening conditions. Herein we present an overview of male reproductive medicine, which has been revolutionized in the past two decades by dramatic scientific and therapeutic advances. The development of intracytoplasmic sperm injection and its successful application to sperm retrieved from the epididymis or testis have made biological paternity possible in men previously considered sterile. Microsurgical techniques for vasal-epididymal reconstruction and sperm retrieval have been refined. Novel tests of semen quality have been developed. Medical therapies to improve sperm production, such as estrogen receptor modulation and aromatase inhibition, have been used increasingly in clinical practice. Finally, associations between male subfertility and a spectrum of health-threatening conditions have been recognized.
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Affiliation(s)
- Peter J Stahl
- Weill Cornell Medical College, New York, New York, USA.
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Morakinyo A, Iranloye B, Adegoke O. Calcium antagonists modulate oxidative stress and acrosomal reaction in rat spermatozoa. Arch Med Sci 2011; 7:613-8. [PMID: 22291796 PMCID: PMC3258791 DOI: 10.5114/aoms.2011.24130] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 04/10/2011] [Accepted: 05/06/2011] [Indexed: 01/24/2023] Open
Abstract
INTRODUCTION Calcium ions are vital in many biological processes and qualify as an almost ubiquitous intracellular second messenger. This indicates the multiplicity of the effects associated with drug actions aimed at interfering with calcium ions. To examine the cellular process involved in the induction of infertility in males by calcium antagonist (CA) even in the presence of normal semen parameters, we studied the effects of different CA namely; nifedipine, verapamil and diltiazem on oxidative balance and acrosome reaction in the sperm. MATERIAL AND METHODS For this purpose, lipid peroxidation, antioxidants such as superoxide dismutase, catalase and reduced glutathione, and acrosomal reaction were determined in sperm samples of rats. RESULTS Calcium antagonist causes significant oxidative stress in the epididymal sperm with increased malondialdehyde level and a concomitant decrease in antioxidant activities of catalase and superoxide dismutase. The percentage value of acrosomal-reacted sperm in the nifedipine, verapamil and diltiazem-treated rats were 41 ±2.45, 39 ±2.92 and 42 ±1.22 respectively, compared with the control group value of 86 ±2.92. CONCLUSIONS It appears CA oxidatively modify the sperm resulting in functional inhibition of acrosomal reaction. Suppression of the sperm acrosomal reaction is known to have serious adverse implications for fertilization.
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Affiliation(s)
- Ayodele Morakinyo
- Department of Physiology, College of Medicine of the University of Lagos, Nigeria
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40
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Antifertility effect of calcium channel blockers on male rats: association with oxidative stress. Adv Med Sci 2011; 56:95-105. [PMID: 21596665 DOI: 10.2478/v10039-011-0018-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
PURPOSE Calcium ions are vital in many biologic processes including a variety of enzymatic reactions, activation of excitable cells, coupling of electrical activation to cellular secretion, haemostasis, bone metabolism and sperm functions. Calcium channel blockers (CCB) appear to have a reversible anti-fertility effect on male rats which does not occur through inhibition of the pituitary-gonadal axis. While the effects of CCB on male reproductive function have been investigated, less information is available regarding other reproductive indices and the underlying mechanism in the pathogenesis of male reproductive dysfunction. Therefore, the involvement of oxidative mechanisms in the adverse manifestation induced by CCB on male reproductive functions is investigated in this study. METHODS For this purpose, lipid peroxidation; enzymatic antioxidants such as superoxide dismutase, catalase and glutathione reduced; epididymal sperm count, motility; histopathology of the testes, epididymis, seminal vesicle, prostate glands; and reproductive performance were determined. RESULTS CCB administration in rats causes significant oxidative stress in the male reproductive milieu in term of increase in malondialdehyde (MDA) level and a concomitant decrease in catalase, superoxide dismutase and reduced glutathione enzyme activities in the testes. In addition, CCB treatment significantly decreased the sperm count, sperm motility, fertility index, implantation count, and litter size in this study. CONCLUSION There is substantial evidence that CCB induces significant oxidative stress in the testes, which appears to be responsible for the adverse effects of decreased sperm count and motility ultimately leading to reduced fertility in rats.
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Abstract
INTRODUCTION Eurycoma longifolia Jack (Simaroubaceae) has the reputation as a male aphrodisiac because it is claimed to increase virility and sexual prowess. Nevertheless, whether or not E. longifolia regulates directly the muscle tone of corpus cavernosa and/or seminal vesicle (SV) remains unclear. Even until now, the compositions that could account for its aphrodisiac property are still unknown AIM We examined the effect of 9-hydroxycanthin-6-one (9-HC-6-one), a β-carboline alkaloid isolated from E. longifolia, on penile erection and ejaculation, and further elucidated the mechanism of action. MAIN OUTCOME MEASURES 9-HC-6-one induces penile erection and delays ejaculation. METHODS Drug's effect was studied on rat corpus cavernosum (CC) and SV in vitro, and on the changes in intracavernosal pressure (ICP) after IC injection and intraluminal pressure (ILP) of the SV after hypogastric nerve stimulation (HNS), respectively. RESULTS 9-HC-6-one relaxed significantly phenylephrine (PE)-precontracted CC. Such response was not attenuated by endothelium disruption, N(G) -nitro-L-arginine methyl ester, or 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one treatment, suggesting that a nitric oxide/cyclic guanosine monophosphate-dependent pathway was precluded. 9-HC-6-one attenuated PE-induced contraction by blocking cell surface and internal calcium channels with a higher potency for internal calcium release. This compound also antagonized calcium-evoked contraction in Ca2+ -free, high K+ -depolarizing condition, suggesting that interfering with the entry of calcium through voltage-dependent channels also contributed to 9-HC-6-one-induced corporal relaxation. After IC application of 9-HC-6-one, a significant rise in ICP was observed as compared with the application of normal saline. 9-HC-6-one relaxed significantly norepinephrine (NE)- and KCl-precontracted SV, and antagonized NE-induced oscillatory contraction as potent as clomipramine. Finally, the HNS-evoked increase in ILP was dose-dependently repressed after challenge by 9-HC-6-one. CONCLUSION 9-HC-6-one might be the active component that contributed to the aphrodisiac effect of E. longifolia by antagonizing the smooth muscle tone of CC as well as SV probably through interfering with Ca2+ mobilization.
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Affiliation(s)
- Wen-Fei Chiou
- National Research Institute of Chinese Medicine, Taipei, Taiwan
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42
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Abstract
Male infertility assessment is more than a semen analysis. By interpreting a semen analysis, clinicians recognize its uses and limitations. Once understood, clinicians can then apply modern techniques of endocrine and radiologic evaluation to diagnosis of male reproductive dysfunction. It is important to identify patients with infertility not only to allow reproductive potential but also to identify a population susceptible to future disease states.
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Affiliation(s)
- Zamip P Patel
- Department of Urology, University of Illinois College of Medicine, Clinical Science North, Suite 515, 840 South Wood Street, Chicago, IL 60612, USA.
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Sharpe RM. Environmental/lifestyle effects on spermatogenesis. Philos Trans R Soc Lond B Biol Sci 2010; 365:1697-712. [PMID: 20403879 DOI: 10.1098/rstb.2009.0206] [Citation(s) in RCA: 199] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The high incidence of low sperm counts in young (European) men and evidence for declining sperm counts in recent decades mean that the environmental/lifestyle impact on spermatogenesis is an important health issue. This review assesses potential causes involving adverse effects on testis development in perinatal life (primarily effects on Sertoli cell number), which are probably irreversible, or effects on the process of spermatogenesis in adulthood, which are probably mainly reversible. Several lifestyle-related (obesity, smoking) and environmental (exposure to traffic exhaust fumes, dioxins, combustion products) factors appear to negatively affect both the perinatal and adult testes, emphasizing the importance of environmental/lifestyle impacts throughout the life course. Apart from this, public concern about adverse effects of environmental chemicals (ECs) (pesticides, food additives, persistent pollutants such as DDT, polychlorinated biphenyls) on spermatogenesis in adult men are, in general, not supported by the available data for humans. Where adverse effects of ECs have been shown, they are usually in an occupational setting rather than applying to the general population. In contrast, a modern Western lifestyle (sedentary work/lifestyle, obesity) is potentially damaging to sperm production. Spermatogenesis in normal men is poorly organized and inefficient so that men are poorly placed to cope with environmental/lifestyle insults.
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Affiliation(s)
- Richard M Sharpe
- MRC Human Reproductive Sciences Unit, Centre for Reproductive Biology, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK.
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Abstract
Objective of this study is to review technical methods to retrieve sperm from critically ill/injured patients after an appropriate family request, possible harmful effects on sperm production/function by ICU medications or concurrent illnesses, and ethical considerations for hospitals and care providers in providing this resource. Design used for this study includes: literature review, PubMed 1998-2009, and authors' files. There are no interventions. In conclusion, although successful and unsuccessful pregnancies following sperm removal from critically-ill patients are reported, no firm probability predictions for either result are known. Acute and chronic diseases that effect the hypothalamic-pituitary-gonadal axis and multiple medications common to the ICU may reduce sperm production or function. Retrieval methods before and after cardio-respiratory death differ and often require intracytoplasmic sperm injection or other in vitro fertilization techniques to achieve a subsequent pregnancy. The proactive development of a collaborative policy/procedure to identify appropriate roles for the hospital, its employees, and affiliated critical care and urology physicians is strongly recommended.
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Affiliation(s)
- David J Powner
- Departments of Neurosurgery and Internal Medicine, University of Texas Health Sciences Center at Houston Medical School, 6431 Fannin Street, MSB 7.154, Houston, TX 77030, USA.
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Lee HW, Jeong JY, Yang JB, Han DH, Lee SW. A novel method of seminal vesicle preparation in isolated seminal vesicle experiments in the rat: ring preparation. Int J Impot Res 2008; 21:57-61. [PMID: 18987641 DOI: 10.1038/ijir.2008.57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In this study, we evaluated the efficacy of a novel method of seminal vesicle (SV) preparation-ring preparation method-in isolated SV experiments in the rat. Rat SVs were prepared as strips and rings and applied to organ baths. The relaxation responses by sodium nitroprusside or doxazosin and contractile responses by electrical field stimulation (EFS) were recorded in both groups. We compared the proportion of tissues that showed consistent responses to the stimuli-drug or EFS-in both groups. And magnitudes of the contractile or relaxation responses were also evaluated in the two groups. In strip preparations (n=20), six tissues (30%) showed stable responses to drugs and were regarded to be useful. However, in ring preparations (n=20), 13 tissues (65%) showed stable responses (P<0.001). Similarly, consistent contractile responses to the EFS were recorded in eight strips (40%) and 13 rings (65%) (n=20 in each group; P<0.05). The magnitudes of the relaxations by drugs were not different between the two methods (P=0.42) and the contractions by EFS were higher in ring preparations (P<0.05). The ring preparation seems to be better for responses to drugs and EFS compared with the strip preparations and, therefore, might be an alternative technique for in vitro SV experiments.
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Affiliation(s)
- H W Lee
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
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46
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Petrocelli M, Oberweis T, Petrocelli J. Getting Huge, Getting Ripped: A Qualitative Exploration of Recreational Steroid Use. JOURNAL OF DRUG ISSUES 2008. [DOI: 10.1177/002204260803800412] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Steroid use is only now being recognized as a national epidemic. Although American athletes have been using anabolic steroids since the 1950s, it was not until the 1980s that athletic governing bodies began to monitor and sanction illegal supplementation. It is easier to understand why paid, professional athletes might partake in steroid use; keeping up with the competition, sustaining or improving abilities, salary incentives and endorsements based on performance are but a few reasons. But it is more difficult to understand why adult nonprofessional athletes would eagerly flout the law and put their health at risk. Academic research into steroid use has largely ignored this populous group, instead focusing on professional, college or high school/adolescent athletes. Through semi-structured interviews with 37 recreational steroid users, this paper seeks to fill that void by exploring their motivations, knowledge, and attitudes toward illegal anabolic steroids. The findings are discussed in terms of their policy implications.
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Lazarou S, Morgentaler A. The Effect of Aging on Spermatogenesis and Pregnancy Outcomes. Urol Clin North Am 2008; 35:331-9, xi. [DOI: 10.1016/j.ucl.2008.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Knoester PA, Leonard M, Wood DP, Schuster TG. Fertility Issues for Men with Newly Diagnosed Prostate Cancer. Urology 2007; 69:123-5. [PMID: 17270632 DOI: 10.1016/j.urology.2006.09.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2006] [Revised: 07/04/2006] [Accepted: 09/14/2006] [Indexed: 11/21/2022]
Abstract
OBJECTIVES With the increased use of prostate-specific antigen screening, younger men are being diagnosed with prostate cancer. A subset of these men is still interested in potentially having children after cancer treatment. To our knowledge, the topic of future fertility in patients with newly diagnosed prostate cancer has not previously been reported. METHODS The charts of 8 patients with prostate cancer who were interested in future fertility before treatment were retrospectively reviewed. Preceding definitive treatment, the men underwent fertility counseling and were counseled to preserve semen before treatment. RESULTS All 8 patients decided to have their semen stored using cryopreservation before their operation. After undergoing radical prostatectomy, one of the patients and his wife underwent successful intrauterine insemination and bore a child. CONCLUSIONS A subset of men, regardless of age, diagnosed with prostate cancer will be interested in preserving their fertility for the future. Fertility options and potential counseling should be part of the routine pretreatment appointments in men undergoing treatment of prostate cancer.
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Affiliation(s)
- Peter A Knoester
- Department of Urology, University of Michigan Medical School, Ann Arbor, Michigan 48109-0330, USA
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Commenges-Ducos M. Prise en compte clinique des différents toxiques dans les infertilités. ACTA ACUST UNITED AC 2006; 34:985-9. [PMID: 17005430 DOI: 10.1016/j.gyobfe.2006.07.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2006] [Accepted: 07/10/2006] [Indexed: 11/21/2022]
Abstract
This paper reviews the main toxics which are deleterious to fertility. Toxics are identified through in vitro, animal and clinical studies. The practitioner tries to assess whether a couple consulting for infertility has been exposed to such toxics. Some toxics are voluntarily taken: this is the case for tobacco, alcohol and other, maybe illegal, recreative drugs. Tobacco is the most frequently observed. The assessment of tobacco consumption and the implementation of weaning procedures have been studied in numerous papers: psychological, pharmacological and even immunotherapy-based approaches have been proposed. Alcohol abuse is even more difficult to assess: the border between acceptable convivial and excessive consumption is not clear-cut, except during pregnancy where there should be no alcohol consumption. This also holds for "recreative" drugs. It is usual clinical practice to register the medicine taken; some of these may be toxic for fertility. There is an ongoing work for listing these toxic drugs. Occupational life may also lead to exposure to toxics or be deleterious for fertility by imposing body constraints.
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Affiliation(s)
- M Commenges-Ducos
- Maternité Pellegrin, CHU de Bordeaux, place Amélie-Raba-Léon, 33076 Bordeaux cedex, France.
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Orhan I, Onur R, Taşdemir C, Ayar A, Kadioğlu A. Sildenafil Citrate Inhibits Agonist Induced Contractions in Isolated Rat Seminal Vesicles. J Urol 2006; 175:2350-3. [PMID: 16697872 DOI: 10.1016/s0022-5347(06)00280-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2005] [Indexed: 11/25/2022]
Abstract
PURPOSE Sildenafil is reported to regulate smooth muscle contractility through nitric oxide-cyclic guanosine monophosphate, not only in the corpus cavernosum. Its possible effects on seminal vesicle contractility might be of importance with respect to premature ejaculation. We investigated the effects of sildenafil citrate (Pfizer, New York, New York) on agonist induced isometric contractions of the rat seminal vesicle in vitro. MATERIALS AND METHODS Seminal vesicles isolated from adult male Wistar rats were suspended in an organ bath and contracted by NE (10 microM), ACh (10 microM) or KCl (60 mM) (Sigma, Deisenhofen, Germany). The effects of sildenafil citrate (100 to 300 microM) were evaluated in terms of mean contraction amplitude, the area under force-time curves and isometric contractility indexes. RESULTS Sildenafil citrate (300 microM) significantly inhibited the mean amplitude +/- SEM of contractile responses induced by NE (1,061 +/- 153 vs 271 +/- 65 mg, p <0.0001), ACh (475 +/- 51 vs 68 +/- 17 mg, p <0.0001) and KCl (546 +/- 71 vs 59 +/- 18 mg, p <0.0002). It also caused dose dependent concomitant decreases in the area under force-time curves. Additionally, pretreatment with sildenafil citrate markedly prevented the contractile response to NE, ACh and KCl. CONCLUSIONS Our results indicate that sildenafil citrate inhibits the contractions of isolated rat seminal vesicle that are induced by NE, ACh or KCl. Future studies may support an in vivo effect of sildenafil for delaying or inhibiting seminal vesicle emission, thereby, promoting improvement in patients with premature ejaculation.
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Affiliation(s)
- Irfan Orhan
- Department of Urology, Firat University, Elazig, Istanbul, Turkey
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