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Meng K, Liu Q, Qin Y, Qin W, Zhu Z, Sun L, Jiang M, Adu-Amankwaah J, Gao F, Tan R, Yuan J. Mechanism of mitochondrial oxidative phosphorylation disorder in male infertility. Chin Med J (Engl) 2024:00029330-990000000-01098. [PMID: 38855875 DOI: 10.1097/cm9.0000000000003126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Indexed: 06/11/2024] Open
Abstract
ABSTRACT Male infertility has become a global concern, accounting for 20-70% of infertility. Dysfunctional spermatogenesis is the most common cause of male infertility; thus, treating abnormal spermatogenesis may improve male infertility and has attracted the attention of the medical community. Mitochondria are essential organelles that maintain cell homeostasis and normal physiological functions in various ways, such as mitochondrial oxidative phosphorylation (OXPHOS). Mitochondrial OXPHOS transmits electrons through the respiratory chain, synthesizes adenosine triphosphate (ATP), and produces reactive oxygen species (ROS). These mechanisms are vital for spermatogenesis, especially to maintain the normal function of testicular Sertoli cells and germ cells. The disruption of mitochondrial OXPHOS caused by external factors can result in inadequate cellular energy supply, oxidative stress, apoptosis, or ferroptosis, all inhibiting spermatogenesis and damaging the male reproductive system, leading to male infertility. This article summarizes the latest pathological mechanism of mitochondrial OXPHOS disorder in testicular Sertoli cells and germ cells, which disrupts spermatogenesis and results in male infertility. In addition, we also briefly outline the current treatment of spermatogenic malfunction caused by mitochondrial OXPHOS disorders. However, relevant treatments have not been fully elucidated. Therefore, targeting mitochondrial OXPHOS disorders in Sertoli cells and germ cells is a research direction worthy of attention. We believe this review will provide new and more accurate ideas for treating male infertility.
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Affiliation(s)
- Kai Meng
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, Shandong 272067, China
- Lin He's Academician Workstation of New Medicine and Clinical Translation, Jining Medical University, Jining, Shandong 272067, China
| | - Qian Liu
- College of Basic Medical, Jining Medical University, Jining, Shandong 272067, China
| | - Yiding Qin
- College of Basic Medical, Jining Medical University, Jining, Shandong 272067, China
| | - Wenjie Qin
- College of Second Clinical Medicine, Jining Medical University, Jining, Shandong 272067, China
| | - Ziming Zhu
- College of Second Clinical Medicine, Jining Medical University, Jining, Shandong 272067, China
| | - Longlong Sun
- College of Second Clinical Medicine, Jining Medical University, Jining, Shandong 272067, China
| | - Mingchao Jiang
- College of Second Clinical Medicine, Jining Medical University, Jining, Shandong 272067, China
| | - Joseph Adu-Amankwaah
- College of Basic Medical, Xuzhou Medical University, Xuzhou, Zhejiang 221004, China
| | - Fei Gao
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, Shandong 272067, China
- Lin He's Academician Workstation of New Medicine and Clinical Translation, Jining Medical University, Jining, Shandong 272067, China
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 101408, China
| | - Rubin Tan
- College of Basic Medical, Xuzhou Medical University, Xuzhou, Zhejiang 221004, China
| | - Jinxiang Yuan
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, Shandong 272067, China
- Lin He's Academician Workstation of New Medicine and Clinical Translation, Jining Medical University, Jining, Shandong 272067, China
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Kaltsas A, Zachariou A, Markou E, Dimitriadis F, Sofikitis N, Pournaras S. Microbial Dysbiosis and Male Infertility: Understanding the Impact and Exploring Therapeutic Interventions. J Pers Med 2023; 13:1491. [PMID: 37888102 PMCID: PMC10608462 DOI: 10.3390/jpm13101491] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023] Open
Abstract
The human microbiota in the genital tract is pivotal for maintaining fertility, but its disruption can lead to male infertility. This study examines the relationship between microbial dysbiosis and male infertility, underscoring the promise of precision medicine in this field. Through a comprehensive review, this research indicates microbial signatures associated with male infertility, such as altered bacterial diversity, the dominance of pathogenic species, and imbalances in the genital microbiome. Key mechanisms linking microbial dysbiosis to infertility include inflammation, oxidative stress, and sperm structural deterioration. Emerging strategies like targeted antimicrobial therapies, probiotics, prebiotics, and fecal microbiota transplantation have shown potential in adjusting the genital microbiota to enhance male fertility. Notably, the application of precision medicine, which customizes treatments based on individual microbial profiles and specific causes of infertility, emerges as a promising approach to enhance treatment outcomes. Ultimately, microbial dysbiosis is intricately linked to male infertility, and embracing personalized treatment strategies rooted in precision medicine principles could be the way forward in addressing infertility associated with microbial factors.
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Affiliation(s)
- Aris Kaltsas
- Department of Urology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (A.K.); (A.Z.); (N.S.)
| | - Athanasios Zachariou
- Department of Urology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (A.K.); (A.Z.); (N.S.)
| | - Eleftheria Markou
- Department of Microbiology, University Hospital of Ioannina, 45500 Ioannina, Greece;
| | - Fotios Dimitriadis
- Department of Urology, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Nikolaos Sofikitis
- Department of Urology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (A.K.); (A.Z.); (N.S.)
| | - Spyridon Pournaras
- Clinical Microbiology Laboratory, Attikon General University Hospital of Athens, 12462 Athens, Greece
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Belladelli F, Corsini C, Pozzi E, Raffo M, Fallara G, Costa A, Cignoli D, Boeri L, Ventimiglia E, Capogrosso P, Eisenberg ML, Montorsi F, Salonia A. Does Air Pollution Impact on Semen Parameters? Findings from a Real-Life, Cross-Sectional Study in Italian Infertile Men. World J Mens Health 2023; 41:403-412. [PMID: 35791299 PMCID: PMC10042647 DOI: 10.5534/wjmh.210240] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/12/2022] [Accepted: 03/10/2022] [Indexed: 11/15/2022] Open
Abstract
PURPOSE In industrialized countries, air pollutants levels have been monitored closely for environmental and research issues. Using Italian data, we aimed to investigate the association between air pollutants levels and semen parameters in a cohort of non-Finnish white-European men presenting for couple's infertility. MATERIALS AND METHODS Complete demographic and laboratory data from 1,152 infertile men consecutively assessed between January 2015 and January 2018 were analyzed. Semen analyses were based on the 2010 World Health Organization reference criteria. Health-significant comorbidities were scored with the Charlson Comorbidity Index (CCI). We analyzed the annual average level of the three main markers of air pollution (Pm10, Pm2.5, and NO2) between 2014 and 2018. Descriptive statistics, linear and logistic regression analyses tested the association between air pollutants levels and semen parameters. RESULTS Of 1,152 men, 87 (7.55%) had normal sperm parameters at first semen analysis. Of 1,065 patients with abnormal semen analyses, 237 (22.25%), 324 (30.42%), and 287 (26.95%) patients presented 1, 2 or 3 abnormalities, respectively, and 217 (20.38%) were azoospermic. At linear regression analysis, Pm10, Pm2.5, and NO2 were negatively associated with sperm morphology (Pm10: β=-0.5288 µg/m3, p=0.001; Pm2.5: β=-0.5240 µg/m3, p=0.019; NO2: β=-0.4396 µg/m3, p<0.0001). Furthermore, the adjusted odds of normal sperm morphology <4% were 1.06 (95% confidence interval [CI], 1.03-1.09; p=0.007) for Pm10, 1.07 (95% CI, 1.03-1.11; p=0.007) for Pm 2.5, and 1.03 (95% CI, 1.02-1.05; p=0.001) for NO2, respectively. CONCLUSIONS In a large homogenous cohort of infertile men, Pm10, Pm 2.5, and NO2 levels were negatively associated with sperm morphology. Conversely, no clear association was observed with other macroscopic sperm parameters.
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Affiliation(s)
- Federico Belladelli
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute (URI), IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Christian Corsini
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute (URI), IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Edoardo Pozzi
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute (URI), IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Massimiliano Raffo
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute (URI), IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Giuseppe Fallara
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute (URI), IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Antonio Costa
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute (URI), IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Daniele Cignoli
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute (URI), IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Luca Boeri
- Department of Urology, Foundation IRCCS Ca' Granda - Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Eugenio Ventimiglia
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute (URI), IRCCS Ospedale San Raffaele, Milan, Italy
| | - Paolo Capogrosso
- Department of Urology, Circolo & Fondazione Macchi Hospital - ASST Sette Laghi, Varese, Italy
| | | | - Francesco Montorsi
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute (URI), IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology, Urological Research Institute (URI), IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy.
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Whittaker J. Dietary trends and the decline in male reproductive health. Hormones (Athens) 2023; 22:165-197. [PMID: 36725796 DOI: 10.1007/s42000-023-00431-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 01/16/2023] [Indexed: 02/03/2023]
Abstract
Over the twentieth century, male reproductive health has suffered a substantial decline, as evidenced by decreases in sperm counts and testosterone levels and increases in reproductive pathologies. At the same time, the prevalence of chronic diseases such as obesity, diabetes, and metabolic syndrome has risen dramatically. Metabolic and reproductive health are highly interconnected, suggesting that their respective trends are intertwined and, given the timeframe of such trends, environmental and not genetic factors are most likely to be the primary causes. Industrialization, which began in Europe in the mid-eighteenth century, has resulted in profound changes to our diet, lifestyle, and environment, many of which are causal factors in the rise in chronic diseases. Industrialization results in a nutrition transition from an agricultural unprocessed to a modern processed diet, incorporating increases in sugar, vegetable oils, ultra-processed foods, linoleic acid, trans-fats, and total energy. This dietary shift has incurred numerous adverse effects on metabolic and reproductive health, characterized by chronic inflammation, oxidative stress, and insulin resistance. Moreover, these effects appear to multiply across subsequent generations via epigenetic inheritance. Men's fertility is markedly affected by obesity and diabetes, with an increase in total energy via processed food intake arguably being the key factor driving the diabesity pandemic. In contrast, wholefoods rich in micronutrients and phytonutrients support male fertility and a healthy body weight. Therefore, men wanting to maximize their fertility should consider making positive dietary changes, such as replacing processed foods with unprocessed foods that support metabolic and reproductive health.
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Affiliation(s)
- Joseph Whittaker
- The School of Allied Health and Community, University of Worcester, Henwick Grove, Worcester, WR2 6AJ, UK.
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5
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Belladelli F, Muncey W, Seranio N, Eisenberg ML. Counseling for the man with severe male infertility. Curr Opin Urol 2023; 33:5-9. [PMID: 36210761 DOI: 10.1097/mou.0000000000001047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
PURPOSE OF REVIEW This review summarize the proper counseling for men with severe male factor infertility. RECENT FINDINGS Men who are experiencing infertility should have a semen analysis, the results of which may imply additional investigations, including genetic and hormonal. Moreover, possible modifiable factors that may harm men's reproductive health should be carefully evaluated. Finally, different treatment options are available. SUMMARY Approximately 15% of couples struggle with infertility. Complete evaluations of both men and women are required to determine the etiology of infertility and determine appropriate treatment.
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Affiliation(s)
- Federico Belladelli
- Division of Experimental Oncology/Unit of Urology; URI; IRCCS Ospedale San Raffaele
- University Vita-Salute San Raffaele, Milan, Italy
- Department of Urology, School of Medicine, Stanford University, Stanford, California, USA
| | - Wade Muncey
- Department of Urology, School of Medicine, Stanford University, Stanford, California, USA
| | - Nicolas Seranio
- Department of Urology, School of Medicine, Stanford University, Stanford, California, USA
| | - Michael L Eisenberg
- Department of Urology, School of Medicine, Stanford University, Stanford, California, USA
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Auger J, Eustache F, Chevrier C, Jégou B. Spatiotemporal trends in human semen quality. Nat Rev Urol 2022; 19:597-626. [PMID: 35978007 PMCID: PMC9383660 DOI: 10.1038/s41585-022-00626-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/06/2022] [Indexed: 11/09/2022]
Abstract
Over the past four decades, studies of various designs have reported spatial and temporal trends in human semen quality. Several standardized-methodology studies in homogeneous populations that compare specific cities within a country or a continent provide clear evidence of geographical differences in sperm production, even over short distances within the same country. Human sperm production is widely believed to be declining over time, but evidence from the scientific literature is less clear. Studies based on repeated cross-sectional data from a single centre have shown mixed results. Among the numerous retrospective studies conducted in a single centre, only some included homogeneous groups of men and appropriate methods, and most of them suggest a temporal decrease in human sperm production in the geographical areas considered. Conclusions reporting temporal trends in sperm production that came from existing retrospective multicentre studies based on individual semen data and those using means, medians or estimates of sperm production are questionable, owing to intrinsic limitations in the studies performed. Regardless of study design, studies on the percentage of motile or morphologically normal spermatozoa are still limited by the inherent variability in assessment. Overall, available data do not enable us to conclude that human semen quality is deteriorating worldwide or in the Western world, but that a trend is observed in some specific areas. To understand these trends and contrasts in sperm and semen quality, prospective studies should be encouraged and combined with assessment of the male exposome. Several studies over the past few decades have suggested that sperm quality varies by geographical region and might be subject to a temporal decline worldwide. However, the data supporting these conclusions have come from studies of various methodologies and heterogeneous populations, making them unreliable. In this in-depth Review, Chevrier and colleagues discuss the data surrounding discussion of spatiotemporal trends in semen parameters and consider how these trends and the factors promoting them interact. The vast literature on human semen quality trends is extremely heterogeneous in terms of the populations studied and study designs, and so these studies have been unable to draw firm conclusions. Understanding the data around spatiotemporal semen trends requires a focus on the methodological choices and application of criteria to filter findings from the studies with optimal design. Numerous appropriately designed studies suggest unambiguous geographical contrasts in human sperm production; however, evidence of a decline in sperm production is reliable only in specific populations and cities in which studies with a complete set of quality criteria have been conducted. By contrast, suggestions of a worldwide drop in human semen quality on the basis of retrospective multicentre studies cannot be substantiated, owing to intrinsic limitations in the studies performed. Many and varied factors of variation, in particular the diverse modalities of assessment, do not enable us to conclude that clear temporal trends of sperm motility and normal morphology are present. Progress in our understanding of the highlighted trends and their causal factors requires prospective studies that minimize all known biases combined with the assessment of men’s exposome.
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Affiliation(s)
- Jacques Auger
- INSERM U1016-Equipe "Génomique, Epigénétique et Physiologie de la Reproduction", Institut Cochin, Université Paris Descartes-Paris, Paris, France
| | - Florence Eustache
- INSERM U1016-Equipe "Génomique, Epigénétique et Physiologie de la Reproduction", Institut Cochin, Université Paris Descartes-Paris, Paris, France.,CECOS, Hôpitaux Universitaires Paris Seine-Saint-Denis, Hôpital Jean Verdier and Service de Biologie de la Reproduction, Hôpitaux Universitaires Paris Nord Val de Seine, Hôpital Bichat, Paris, France
| | - Cécile Chevrier
- Université Rennes, INSERM, EHESP, IRSET-UMR_S 1085, Rennes, France.
| | - Bernard Jégou
- Université Rennes, INSERM, EHESP, IRSET-UMR_S 1085, Rennes, France
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Antonine B, Guillaume M, Philippe D, Marie-Hélène P. Low concentrations of glyphosate alone affect the pubertal male rat meiotic step: An in vitro study. Toxicol In Vitro 2022; 79:105291. [PMID: 34864054 DOI: 10.1016/j.tiv.2021.105291] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/09/2021] [Accepted: 11/29/2021] [Indexed: 12/20/2022]
Abstract
Glyphosate is the most used herbicide in the world. Controversial studies exist on its effect on the male reproductive system. We used the validated BioAlter® model to test the effects of low concentrations of Glyphosate. Pubertal rat seminiferous tubules were treated with Glyphosate 50 nM, 500 nM, 5 μM or 50 μM over a 3-week culture period. The Trans-Epithelial Electrical Resistance was not modified by any of the concentrations. The decrease of Clusterin mRNAs suggested that glyphosate would target the integrity of Sertoli cells. The decrease of the numbers of germ cells from day 14 onward highlighted the chronic effect of glyphosate at 50 nM, 500 nM or 5 μM. No consistent effect of glyphosate was observed on the numbers of spermatogonia or on their specific mRNA levels. However, those low concentrations of glyphosate targeted young spermatocytes and middle to late pachytene spermatocytes resulting in a decrease of the numbers of round spermatids, the direct precursors of spermatozoa. This study underlines that the effect of a toxicant should be also studied at low doses and during the establishment of the blood-testis barrier.
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Affiliation(s)
- Blondet Antonine
- Kallistem, VetAgro Sup, 1 Avenue Bourgelat, 69280 Marcy-l'Etoile, France.
| | - Martin Guillaume
- Kallistem, VetAgro Sup, 1 Avenue Bourgelat, 69280 Marcy-l'Etoile, France.
| | - Durand Philippe
- Kallistem, VetAgro Sup, 1 Avenue Bourgelat, 69280 Marcy-l'Etoile, France.
| | - Perrard Marie-Hélène
- INSERM U 1208, Institut Cellule Souche et Cerveau, 18 avenue du Doyen Lépine, 69500 Bron, France.
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8
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Molina EM, Kavazis AN, Mendonça MT, Akingbemi BT. Effects of different DDE exposure paradigms on testicular steroid hormone secretion and hepatic oxidative stress in male Long-Evans rats. Gen Comp Endocrinol 2022; 317:113963. [PMID: 34902316 DOI: 10.1016/j.ygcen.2021.113963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 10/16/2021] [Accepted: 12/07/2021] [Indexed: 11/04/2022]
Abstract
Chronic exposure to low doses of anthropogenic chemicals in the environment continues to be a major health issue. Due to concerns about the effects in humans and wildlife, use of persistent organic pollutants, such as dichlorodiphenyltrichloroethane (DDT), is prohibited. However, their ubiquitous nature and persistence allows them to remain in the environment at low levels for decades. Dichlorodiphenyldichloroethylene (DDE) is the most persistent metabolite of DDT and has been shown to cause hepatotoxicity, nephrotoxicity, hormonal disorders, and induce oxidative stress in many organisms. Although the effects of acute exposure to DDT and its metabolite DDE have been extensively studied, the chronic effects of sub-lethal DDE exposure at levels comparable to those found in the environment have not been well documented. Long-Evans male rats were used to determine the effect of relatively chronic and short term DDE (doses ranged from 0.001 to 100 μg/L) exposure on endocrine function and oxidative stress at different developmental time points. We found that circulating serum testosterone (T) levels were significantly decreased and T secretion in testicular explants were significantly influenced in a dose dependent manner in both pre-pubertal and pubertal male rats after DDE exposure, with pubertal rats being the most affected contrary to our original prediction. Additionally, exposure to DDE increased expression of protein oxidation indicating a possible increase in cellular damage caused by oxidative stress. This study suggests that chronic exposures to environmentally relevant levels of DDE affected testicular function and decreased T secretion with implications for reproductive capacity.
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Affiliation(s)
- Erica M Molina
- Department of Biological Sciences, Auburn University, 331 Funchess Hall, 350 South College St, Auburn, AL 36849, USA.
| | - Andreas N Kavazis
- School of Kinesiology, Auburn University, 287 Kinesiology Building, 301 Wire Road, Auburn, AL 36849, USA.
| | - Mary T Mendonça
- Department of Biological Sciences, Auburn University, 331 Funchess Hall, 350 South College St, Auburn, AL 36849, USA.
| | - Benson T Akingbemi
- Department of Anatomy, Physiology and Pharmacology, Auburn University, 1130 Wire Road, Auburn, AL 36849, USA.
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9
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Kumar S, Sharma A, Thaker R. Air pollutants and impairments of male reproductive health-an overview. REVIEWS ON ENVIRONMENTAL HEALTH 2021; 36:565-575. [PMID: 33544535 DOI: 10.1515/reveh-2020-0136] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 01/05/2021] [Indexed: 06/12/2023]
Abstract
Excessive air pollution, both ambient and indoor are might be detrimental to human wellbeing and are related to morbidity and mortality, it may also affect the reproductive function and its outcome. It is a recognized fact that air pollution contains several toxicants, gases, particulate matter, toxic metals etc. Some of them might affect reproductive and developmental process and a few are persistent. The information accessible on air pollution to human male reproduction is stated to affect semen quality by diminishing one or more sperm quality parameters i.e., sperm morphology, concentration, motility etc. and may causes sperm DNA damage, these might alter the fertility potential which in turn affect pregnancy or its outcome. The impact might be related to the pollutant's concentration and duration of exposure. The data on impact of air contamination on endocrine function are inadequate, inconsistence and the diversity of existence of air contaminants in area to area and multiplicity in semen quality parameters assessed in various studies as well as study design variables complicated the problem of evaluation of impact of air pollution on male reproduction. The data available suggests the air pollution is might be injurious to human male reproductive health, which depends upon amounts of air pollutants in the air, duration of exposure etc. but more comprehensive data are needed to substantiate the findings. The data are also needed on indoor air pollution on reproduction as people are might be subjected to greater quantities of some of the indoor air pollutants as compared to ambient air pollution.
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Affiliation(s)
- Sunil Kumar
- A-10, Radhey Kunj Apartment, Shahi Baugh, Ahmedabad, 380004, India
- National Institute of Occupational Health (ICMR), Ahmedabad, 380016, India
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10
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Patisaul HB. REPRODUCTIVE TOXICOLOGY: Endocrine disruption and reproductive disorders: impacts on sexually dimorphic neuroendocrine pathways. Reproduction 2021; 162:F111-F130. [PMID: 33929341 PMCID: PMC8484365 DOI: 10.1530/rep-20-0596] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 04/30/2021] [Indexed: 11/08/2022]
Abstract
We are all living with hundreds of anthropogenic chemicals in our bodies every day, a situation that threatens the reproductive health of present and future generations. This review focuses on endocrine-disrupting compounds (EDCs), both naturally occurring and man-made, and summarizes how they interfere with the neuroendocrine system to adversely impact pregnancy outcomes, semen quality, age at puberty, and other aspects of human reproductive health. While obvious malformations of the genitals and other reproductive organs are a clear sign of adverse reproductive health outcomes and injury to brain sexual differentiation, the hypothalamic-pituitary-gonadal (HPG) axis can be much more difficult to discern, particularly in humans. It is well-established that, over the course of development, gonadal hormones shape the vertebrate brain such that sex-specific reproductive physiology and behaviors emerge. Decades of work in neuroendocrinology have elucidated many of the discrete and often very short developmental windows across pre- and postnatal development in which this occurs. This has allowed toxicologists to probe how EDC exposures in these critical windows can permanently alter the structure and function of the HPG axis. This review includes a discussion of key EDC principles including how latency between exposure and the emergence of consequential health effects can be long, along with a summary of the most common and less well-understood EDC modes of action. Extensive examples of how EDCs are impacting human reproductive health, and evidence that they have the potential for multi-generational physiological and behavioral effects are also provided.
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Affiliation(s)
- Heather B Patisaul
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, North Carolina, USA
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11
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Candela L, Boeri L, Capogrosso P, Cazzaniga W, Pozzi E, Belladelli F, Baudo A, Ravizzoli A, Ventimiglia E, Viganò P, Alfano M, Abbate C, Cornelius J, Mattei A, Montorsi F, Salonia A. Correlation among isolated teratozoospermia, sperm DNA fragmentation and markers of systemic inflammation in primary infertile men. PLoS One 2021; 16:e0251608. [PMID: 34097690 PMCID: PMC8184012 DOI: 10.1371/journal.pone.0251608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 04/28/2021] [Indexed: 01/03/2023] Open
Abstract
Aim To assess the prevalence of isolated teratozoospermia (iTZS) in a cohort of infertile and fertile men; explore the relationship between iTZS, inflammatory parameters and sperm DNA fragmentation index (SDF) in the same cohort. Materials and methods 1824 infertile men and 103 fertile controls. Semen analysis, the neutrophil-to-lymphocyte ratio (NLR) and serum hormones were investigated. DFI was tested in infertile men only. According to 2010 WHO semen analysis, patients were categorized in 3 sub-groups of isolated sperm defects: isolated oligozoospermia (iOZS), isolated asthenozoospermia (iAZS) and iTZS. Descriptive statistics and linear regression models tested the association between clinical variables and inflammatory markers. Results Among infertile men, iAZS, iTZS, and iOZS were found in 13.9%, 11.9% and 4.1% participants, respectively. iTZS was found in 37 (35.9%) fertile men. Infertile men with iTZS had higher NLR values than those with iOZS, iAZS and men with normal semen parameters (all p<0.001). FSH and LH were higher and inhibin B lower in iOZS infertile men compared to all other groups (p≤0.001). Hormonal characteristics were similar between iTZS infertile and fertile men. Similarly, iTZS infertile men had higher SDF than all other groups (all p<0.001). Infertile men with iTZS had higher NLR values than fertile men with iTZS (p<0.01). Linear regression analysis showed that, in infertile men, iTZS was associated with SDF and NLR (all p≤0.01). Conclusions iTZS was found in 11.9% of infertile men but it was even more prevalent in fertile controls. Infertile men with iTZS had higher NLR than fertile controls and increased SDF values than infertile participant with iAZS, iOZS, or normal semen parameters. No differences in hormonal characteristics were found between infertile and fertile men with iTZS.
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Affiliation(s)
- Luigi Candela
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Luca Boeri
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- Department of Urology, Foundation IRCCS Ca’ Granda–Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Paolo Capogrosso
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- Department of Urology and Andrology, Ospedale di Circolo and Macchi Foundation,Varese, Italy
| | - Walter Cazzaniga
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Edoardo Pozzi
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Federico Belladelli
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Andrea Baudo
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Andrea Ravizzoli
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Eugenio Ventimiglia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Paola Viganò
- Obstetrics and Gynaecology Department, IRCCS Ospedale San Raffaele, Milan, Italy
- Division of Genetics and Cell Biology, Reproductive Sciences Laboratory, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Massimo Alfano
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Costantino Abbate
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Julian Cornelius
- Department of Urology, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Agostino Mattei
- Department of Urology, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Francesco Montorsi
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
- * E-mail:
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12
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Blondet A, Martin G, Paulic L, Perrard MH, Durand P. An in vitro bioassay to assess the potential global toxicity of waters on spermatogenesis: a pilot study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:26606-26616. [PMID: 33495953 DOI: 10.1007/s11356-021-12480-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
Many toxicants are present in water as a mixture. Male infertility is one of the environmental impacts in developed countries. Using our rat seminiferous tubule culture model, we evaluated the effects of waters of different origins, on several parameters of the seminiferous epithelium. Concentrated culture medium was diluted with the waters to be tested (final concentrations of the tested waters were between 8 and 80%). The integrity of the blood-testis barrier was assessed by the trans-epithelial electric resistance (TEER). The levels of mRNAs specific of Sertoli cells, of cellular junctions, of each population of germ cells, of androgen receptor, of estrogen receptor α, and of aromatase were also studied. We report, here, the results obtained with ten waters, some of them possessing a negative effect on spermatogenesis. The results showed that, according to the tested waters, their effects on the parameters studied might be quite different indicating many different mechanisms of toxicity, including some endocrine-disrupting effects. It has been reported that men with impaired semen parameters have an increased mortality rate suggesting semen quality may provide a fundamental biomarker of overall male health. Hence, we have developed a relevant in vitro bioassay allowing the evaluation of the potential toxicity of different types of waters on male fertility and to assess some aspects of their mechanism of action. In addition to the TEER measure, the number and/or the identity of the studied mRNAs can be largely increased and/or modified, thus enhancing the possibility of using this model as a "warning system."
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Affiliation(s)
- Antonine Blondet
- Kallistem, Vétagrosup, 1 Avenue Bourgelat, 69280, Marcy-l'Etoile, France
| | - Guillaume Martin
- Kallistem, Vétagrosup, 1 Avenue Bourgelat, 69280, Marcy-l'Etoile, France
| | - Laurent Paulic
- Tame-Water, 3 Rue Jean Jaurès, 85000, La Roche sur Yon, France
| | - Marie-Hélène Perrard
- INSERM U 1208, Institut Cellule Souche et Cerveau, 18 Avenue du Doyen Lépine, 69500, Bron, France
| | - Philippe Durand
- Kallistem, Vétagrosup, 1 Avenue Bourgelat, 69280, Marcy-l'Etoile, France.
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13
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Crisóstomo L, Jarak I, Rato LP, Raposo JF, Batterham RL, Oliveira PF, Alves MG. Inheritable testicular metabolic memory of high-fat diet causes transgenerational sperm defects in mice. Sci Rep 2021; 11:9444. [PMID: 33941835 PMCID: PMC8093209 DOI: 10.1038/s41598-021-88981-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/13/2021] [Indexed: 12/21/2022] Open
Abstract
The consumption of energy-dense diets has contributed to an increase in the prevalence of obesity and its comorbidities worldwide. The adoption of unhealthy feeding habits often occurs at early age, prompting the early onset of metabolic disease with unknown consequences for reproductive function later in life. Recently, evidence has emerged regarding the intergenerational and transgenerational effects of high-fat diets (HFD) on sperm parameters and testicular metabolism. Hereby, we study the impact of high-fat feeding male mice (F0) on the testicular metabolome and function of their sons (F1) and grandsons (F2). Testicular content of metabolites related to insulin resistance, cell membrane remodeling, nutritional support and antioxidative stress (leucine, acetate, glycine, glutamine, inosine) were altered in sons and grandsons of mice fed with HFD, comparing to descendants of chow-fed mice. Sperm counts were lower in the grandsons of mice fed with HFD, even if transient. Sperm quality was correlated to testicular metabolite content in all generations. Principal Component Analysis of sperm parameters and testicular metabolites revealed an HFD-related phenotype, especially in the diet-challenged generation and their grandsons. Ancestral HFD, even if transient, causes transgenerational "inherited metabolic memory" in the testicular tissue, characterized by changes in testicular metabolome and function.
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Affiliation(s)
- Luís Crisóstomo
- Department of Anatomy and Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Ivana Jarak
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Luís P Rato
- Health School of the Polytechnic Institute of Guarda, Guarda, Portugal
| | - João F Raposo
- NOVA Medical School - New University Lisbon, Lisbon, Portugal.,APDP - Diabetes Portugal, Lisbon, Portugal
| | - Rachel L Batterham
- UCL Centre for Obesity Research, Division of Medicine, University College London, London, UK.,National Institute of Health Research, UCLH Biomedical Research Centre, London, UK
| | - Pedro F Oliveira
- Department of Chemistry, QOPNA & LAQV, University of Aveiro, Aveiro, Portugal
| | - Marco G Alves
- Department of Anatomy and Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal.
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14
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Cannarella R, Condorelli RA, Gusmano C, Barone N, Burrello N, Aversa A, Calogero AE, La Vignera S. Temporal Trend of Conventional Sperm Parameters in a Sicilian Population in the Decade 2011-2020. J Clin Med 2021; 10:jcm10050993. [PMID: 33801210 PMCID: PMC7957883 DOI: 10.3390/jcm10050993] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/13/2021] [Accepted: 02/19/2021] [Indexed: 02/07/2023] Open
Abstract
Objective: To evaluate the changes of conventional sperm parameters in men who referred to an andrology reference center in Catania (Eastern Sicily, Italy) in the decade 2011–2020. Methods: For this purpose, we selected–retrospectively and randomly–the reports of 1409 semen analyses performed according to the 2010 WHO criteria. Data on sperm concentration, total sperm count, progressive sperm motility, and percentage of normal forms were analyzed using linear regression of the raw and logarithmic-transformed data. The sperm parameters were subsequently pooled in two five-year periods (2011–2015 and 2016–2020) and compared with each other. Finally, the influence of the city of residence was assessed on five-year pooled data. Main results: A slight but non-significant decline of total sperm count (−2.26 million/year; p = 0.065) and the percentage of spermatozoa with normal morphology (−0.08%/year; p = 0.057) was observed. In contrast, a significant increase of progressive sperm motility (+0.28%/year; p = 0.008) over time was found. The total sperm count of the quinquennium 2016–2020 was significantly lower. and an upward trend of progressive sperm motility was found. compared to the years 2011–2015. No changes in sperm concentration and morphology occurred in the years 2011–2015 vs. 2016–2020. Sperm conventional parameters did not differ when the five-year pooled data were analyzed according to the town of residence. Conclusions: Divergent trends of total sperm count and progressive sperm motility over time were found in patients from Eastern Sicily. This may point out the need of assessing whether a time-dependent change of biofunctional sperm parameters occurs to really understand the trend of sperm quality over time.
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Affiliation(s)
- Rossella Cannarella
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy; (R.C.); (R.A.C.); (C.G.); (N.B.); (N.B.); (A.E.C.)
| | - Rosita A. Condorelli
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy; (R.C.); (R.A.C.); (C.G.); (N.B.); (N.B.); (A.E.C.)
| | - Carmelo Gusmano
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy; (R.C.); (R.A.C.); (C.G.); (N.B.); (N.B.); (A.E.C.)
| | - Nunziata Barone
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy; (R.C.); (R.A.C.); (C.G.); (N.B.); (N.B.); (A.E.C.)
| | - Nunziatina Burrello
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy; (R.C.); (R.A.C.); (C.G.); (N.B.); (N.B.); (A.E.C.)
| | - Antonio Aversa
- Department of Experimental and Clinical Medicine, Magna Græcia University, 88100 Catanzaro, Italy;
| | - Aldo E. Calogero
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy; (R.C.); (R.A.C.); (C.G.); (N.B.); (N.B.); (A.E.C.)
| | - Sandro La Vignera
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy; (R.C.); (R.A.C.); (C.G.); (N.B.); (N.B.); (A.E.C.)
- Correspondence:
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15
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Miao Y, Liu L, Liu C, Deng YL, Chen PP, Luo Q, Cui FP, Zhang M, Lu WQ, Zeng Q. Urinary biomarker of strontium exposure is positively associated with semen quality among men from an infertility clinic. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111694. [PMID: 33396025 DOI: 10.1016/j.ecoenv.2020.111694] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 11/13/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
Experimental studies have shown that nonradioactive strontium (Sr), in the form of Sr2+, have a positive effect on semen quality, but human evidence is lacking. This study aimed to examine the associations between nonradioactive Sr exposure and semen quality in Chinese men (n = 394). We recruited men who presented at an infertility clinic in Wuhan, China to seek for semen parameter analyses. Urinary Sr concentration as an exposure biomarker was measured using inductively coupled plasma mass spectrometer. We estimated the associations between urinary Sr concentrations and semen parameters using multivariable logistic and linear regression models. In multivariable linear regressions models, positive dose-response associations were estimated for sperm concentration, motility, and count across increasing urinary Sr quartiles (all p for trends<0.05), and the consistent positive associations were also observed for urinary Sr concentration modeled as a continuous exposure. In multivariable logistic models, decreased risks of below-reference sperm concentration, motility, and count were also estimated across increasing urinary Sr quartiles (all p for trends<0.05). Our results suggest that nonradioactive Sr exposure may have a beneficial effect on semen quality, but more investigations are warranted to confirm the results.
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Affiliation(s)
- Yu Miao
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Lin Liu
- Department of Laboratory Medicine, Wuhan Children's Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Chong Liu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Yan-Ling Deng
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Pan-Pan Chen
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Qiong Luo
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Fei-Peng Cui
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Min Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Wen-Qing Lu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Qiang Zeng
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (incubating), Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
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16
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Comparative efficacy of Gum Arabic ( Acacia senegal) and Tribulus terrestris on male fertility. Saudi Pharm J 2021; 28:1791-1796. [PMID: 33424268 PMCID: PMC7783220 DOI: 10.1016/j.jsps.2020.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 11/12/2020] [Indexed: 11/24/2022] Open
Abstract
In this study the effect of Gum arabic (Acacia Senegal) was systemically targeted at male fertility with two experiments, the first comparing the effectiveness of Gum arabic (GA) and Tribulus terrestris (TT). For the first experiment, 27 adult mice Balb / c (18 females, 9 males) were divided into 3 in each group, one male and two females, group one had the usual tap water as power, group two had 5% (w / v) GA and group three had 5% (w / v) of TT for 21 days. The results showed, the number of offspring was more with GA treated when compared to TT treated. Blood measurements of testosterone showed significant increase in the GA group as compared to other groups, also Histopathological analysis showed the dose dependent 5% GA had normal seminiferous tubules with increase spermatogenesis. In this study the enhanced fertility in GA-treated mice Balb/c was observed and the experimental studies also show that GA fertility was increased.
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17
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Vahidi S, Moein MR, Yazdinejad F, Ghasemi-Esmailabad S, Narimani N. Iranian temporal changes in semen quality during the past 22 years: A report from an infertility center. Int J Reprod Biomed 2020; 18:1059-1064. [PMID: 33426416 PMCID: PMC7778748 DOI: 10.18502/ijrm.v18i12.8027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 09/11/2019] [Accepted: 06/14/2020] [Indexed: 11/24/2022] Open
Abstract
Background Despite numerous reports about temporal changes in semen quality from all over the world, the debates continue. The latest systemic review has shown an overtime decrease in semen quality worldwide. Objective To assess the temporal changes in the semen quality among Iranian population referred to an infertility center. Materials and Methods In this retrospective cross-sectional study, semen parameters including concentration, motility, and morphology were compared between Iranian men reffered to Research and Clinical Center for Infertility, Yazd between 1990 to 1992 (group 1, n = 707) and 2010 to 2012 (group 2, n = 1108). Demographic characteristics and semen analysis were collected from the records. The effect of age on semen parameters was also investigated. Results Despite the increase in sperm concentration l in group 2, sperm with normal morphology decreased significantly (p < 0.001). Grade-A motility decreased (p < 0.001), grade B motility increased (p < 0.001), and grade C and D motile sperm remained constant (p = 0.303 and p = 0.315, respectively). Also, no significant correlation between the age and semen parameters were observed. Conclusion This study showed inconsistent temporal changes in the participant semen quality. Significant temporal decline were obtained between various semen parameters, sperm morphology and grade A motility. These results should be further evaluated by larger studies in the future.
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Affiliation(s)
- Serajeddin Vahidi
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Reza Moein
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fatemeh Yazdinejad
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Saeed Ghasemi-Esmailabad
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Abortion Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Nima Narimani
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Hasheminejad Kidney Center, Iran University of Medical Science, Tehran, Iran
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18
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Guo Y, Chen H, Wang QJ, Qi X, Li Q, Fu W, Huang J, Yao CY, Liu ZY, Wang MZ, An L, Tian JH, Wu ZH. Prolonged melatonin treatment promote testicular recovery by enhancing RAC1-mediated apoptotic cell clearance and cell junction-dependent spermatogensis after heat stress. Theriogenology 2020; 162:22-31. [PMID: 33418161 DOI: 10.1016/j.theriogenology.2020.12.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 12/08/2020] [Accepted: 12/12/2020] [Indexed: 12/13/2022]
Abstract
INTRODUCTION A decline in semen quality caused by global warming and torrid working conditions is a major cause of human male infertility, and heat stress-induced decreases in male reproductive ability results in economic losses in livestock husbandry. Increasing evidence suggests that melatonin exerts protective effects on stress-induced DNA damage and apoptosis in germ cells. However, few studies have assessed the effects of melatonin on testicular recovery during post-heat stress and the underlying mechanisms. METHODS AND RESULTS In vivo studies using 8-week-old male CD-1 mice revealed that melatonin pretreatment (50 mg/kg for 5 days) did not alleviate heat stress-induced germ cell loss and disrupted testicular histomorphology, however, long-term melatonin administration after heat stress accelerated germ cell apoptosis, spermatogenic cell regeneration, and testicular weight recovery. In vitro studies demonstrated that melatonin enhanced RAC1 activity, resulting in increased phagocytosis of apoptotic germ cells by Sertoli cells. In addition, melatonin restored gap junctions and tight junctions after heat stress, thereby promoting hollow seminiferous tubule filling. DISCUSSION Long-term melatonin administration accelerated testicular recovery after heat stress by enhancing the phagocytotic activity of Sertoli cells and the regeneration of spermatogenic cells. This finding suggests that melatonin is a potential therapeutic for heat stress-induced male infertility.
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Affiliation(s)
- Yao Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Hui Chen
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, 071000, China
| | - Qiang-Jun Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Xin Qi
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Qin Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Wei Fu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jie Huang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Chun-Yan Yao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Zhong-Ying Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Mei-Zhi Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Lei An
- National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jian-Hui Tian
- National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Zhong-Hong Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
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19
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Amini L, Kahrobaie M, Amiri-Farahani L, Haghani H. The relationship between health life style and spermogram Indicators among infertile men: preliminary data. BMC Res Notes 2020; 13:278. [PMID: 32517770 PMCID: PMC7285520 DOI: 10.1186/s13104-020-05102-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 05/20/2020] [Indexed: 11/18/2022] Open
Abstract
Objective Inappropriate life style has destructive effects on sperm quality and, male fertility, so that lifestyle modification may improve spermogram indexes preliminary data. This study aimed to determine the relationship between health life style and spermogram Indicators among infertile men. This analytical descriptive cross-sectional study was conducted on 199 infertile men. The data were collected through the socio-demographic and Health Promoting Lifestyle Profile questionnaires Descriptive statistics independent t-test and Pearson correlation were used to analyze the data through SPSS. Results The mean (standard deviation) of total score of the health promoting lifestyle was (2.39 ± 0.39). The highest mean score was in Health Responsibility subscale (2.51 ± 0.52) and the lowest mean score was in the nutrition subscale (2.24 ± 0.44). Stress management showed significantly correlated with sperm morphology (p = 0.025). Also, spiritual growth with the Sperm concentration (p < 0.001), and sperm motility (p = 0.004) were statistically correlated, and health responsibility dimensions were statistically correlated with the Sperm concentration (p = 0.003) and sperm motility (p = 0.002). Considering that the mean of total score of the health promoting lifestyle and its correlation with some of spermogram indicators shows a need for improving lifestyle in infertile men who referred to infertility clinics.
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Najafpour A, Aghaz F, Roshankhah S, Bakhtiari M. The effect of air dust pollution on semen quality and sperm parameters among infertile men in west of Iran. Aging Male 2020; 23:272-278. [PMID: 29944060 DOI: 10.1080/13685538.2018.1482533] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background: Pollutants during haze and Asian dust storms are transported out of the Asian continent, affecting the regional climate and the hydrological and biogeochemical cycles. Nonetheless, no specific studies evaluated the dust particles influence on semen quality in a specific geographical area.Objective: In this article, we investigated the effect of dust particles on semen quality and sperm parameters among infertile men.Methods: A descriptive-analytic study was conducted among 850 infertile men between 2011 and 2015 years. Semen quality was assessed according to the WHO 2010 guidelines, including sperm concentration, progressive motility, and morphology. Four-year average dust particle concentrations were estimated at each participant's address using the Air Pollution Monitoring Station affiliated with the Department of Environment of Kermanshah city were gathered.Results: Dust particle levels were highest in the summer months, in Kermanshah province. Our results show that, dust pollution was found to be significantly negatively correlated with sperm morphology and sperm concentration before and after lab-processing, but sperm progressive motility is low sensitive to dust particles.Conclusions: Our findings showed that exposures to dust particle may influence sperm quantity in infertile men, consistent with the knowledge that sperm morphology and concentration are the most sensitive parameters of dust pollution.
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Affiliation(s)
- Ali Najafpour
- Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Faranak Aghaz
- Fertility and Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shiva Roshankhah
- Department of Anatomical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mitra Bakhtiari
- Fertility and Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Department of Anatomical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
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21
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Boeri L, Belladelli F, Capogrosso P, Cazzaniga W, Candela L, Pozzi E, Valsecchi L, Papaleo E, Viganò P, Abbate C, Pederzoli F, Alfano M, Montorsi F, Salonia A. Normal sperm parameters per se do not reliably account for fertility: A case-control study in the real-life setting. Andrologia 2020; 53:e13861. [PMID: 33125742 DOI: 10.1111/and.13861] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/07/2020] [Accepted: 09/12/2020] [Indexed: 12/15/2022] Open
Abstract
A proportion of men are infertile despite having normal medical history/physical examination and normal semen analysis. We aimed to assess whether normal sperm parameters per se account for male factor fertility. 1,957 infertile men were compared with 103 age-comparable fertile controls. Semen analysis was based on 2010 World Health Organization reference criteria. Of all, 12.1% of infertile men and 40.8% of fertile men presented with normal sperm parameters. Among fertile men, 36.9% had isolated sperm abnormalities and 22.3% men showed two or more concomitant sperm abnormalities. Serum total testosterone was higher in infertile men with normal sperm parameters compared to those with ≥2 sperm abnormalities or azoospermia, but similar to those with isolated sperm abnormalities (p ≤ .001). Circulating hormones were similar among sperm parameters groups in fertile men. At multivariable analyses, testicular volume (OR 1.12, p ≤ .001) and FSH (OR 0.8, p ≤ .001) were associated with normal sperm parameters. Overall, the longer the infertility period, the greater the number of sperm parameters abnormalities (p < .01). In conclusion, we found that 12% of infertile men and only 41% of fertile men present with normal sperm parameters. Normal sperm parameters per se do not reliably account for fertility in the real-life setting.
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Affiliation(s)
- Luca Boeri
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,Department of Urology, Foundation IRCCS Ca' Granda - Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Federico Belladelli
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Paolo Capogrosso
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,Department of Urology and Andrology, Ospedale di Circolo and Macchi Foundation, Varese, Italy
| | - Walter Cazzaniga
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Luigi Candela
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Edoardo Pozzi
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Luca Valsecchi
- Obstetrics and Gynaecology Department, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Enrico Papaleo
- Obstetrics and Gynaecology Department, IRCCS Ospedale San Raffaele, Milan, Italy.,Reproductive Sciences Laboratory, Division of Genetics and Cell Biology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Paola Viganò
- Obstetrics and Gynaecology Department, IRCCS Ospedale San Raffaele, Milan, Italy.,Reproductive Sciences Laboratory, Division of Genetics and Cell Biology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Costantino Abbate
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Filippo Pederzoli
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Massimo Alfano
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Francesco Montorsi
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy.,University Vita-Salute San Raffaele, Milan, Italy
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22
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Ogunlade B, Adelakun S, Iteire K. Sulforaphane response on aluminum-induced oxidative stress, alterations in sperm characterization and testicular histomorphometry in Wistar rats. Int J Reprod Biomed 2020; 18:611-624. [PMID: 32923928 PMCID: PMC7457154 DOI: 10.18502/ijrm.v13i8.7503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 12/04/2019] [Accepted: 03/03/2020] [Indexed: 11/24/2022] Open
Abstract
Background The exposure of male individual to environmental toxicant is regarded as a channel that results in reduced sperm counts and infertility.
Objective This study investigated the ameliorative response of Sulforaphane (SFN) on Aluminum trichloride (AlCl3) induced testicular toxicity in adult male Wistar rats. Materials and Methods A total of 32 adult male Wistar rats (180-200 gm between 8-10 wk) were divided into four groups (n = 8/each). Group A) received distilled water orally as placebo; Group B) received 100 mg/kgbw AlCl3 only orally; Group C) received 100 mg/kgbw AlCl3 and 100 mg/kgbw SFN orally; and Group D) received 100 mg/kgbw SFN only orally. After 28 days of experiment, animals underwent cervical dislocation, blood serum was obtained for analysis, and testes were harvested for biochemical assays, histology, hormonal profile, and sperm characterization. Results The sperm parameters showed a significant difference within the AlCl3 only group compared with the control and SFN only groups (p = 0.02). However, AlCl3 and SFN co-treatment showed improvement in the motility, viability, and sperm count compared with the AlCl3 only group (p = 0.02). Furthermore, there was a significant decline in the levels of hormones profile and antioxidant status in AlCl3 only group compared to the control and SFN only (p = 0.02). The testicular histoarchitecture of the AlCl3 only group showed shrinkage of seminiferous tubules, spermatogenesis disruption, and empty lumen compared to the control and SFN only groups. Conclusion The present study revealed the ameliorative response of SFN on AlCl3-induced testicular toxicity on serum hormone profiles, antioxidant status, lipid peroxidation, and histomorphometric analysis through oxidative stress.
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Affiliation(s)
- Babatunde Ogunlade
- Department of Human Anatomy, Federal University of Technology, Akure, Ondo State, Nigeria
| | - Sunday Adelakun
- Department of Human Anatomy, Federal University of Technology, Akure, Ondo State, Nigeria
| | - Kingsley Iteire
- Department of Human Anatomy, University of Medical Sciences, Ondo city, Ondo State, Nigeria
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23
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Liu J, Dai Y, Li Y, Yuan E, Wang Q, Wang X, Guan Y. A longitudinal study of semen quality among Chinese sperm donor candidates during the past 11 years. Sci Rep 2020; 10:10771. [PMID: 32612270 PMCID: PMC7329839 DOI: 10.1038/s41598-020-67707-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 06/11/2020] [Indexed: 11/09/2022] Open
Abstract
Studies suggest that semen quality is declining globally, however, the debate remains open due to the possible effects of ethnic and geographical differences. This study aimed to explore whether semen quality of sperm donor candidates has changed in Henan Province, China from 2009 to 2019. In this retrospective study, we included 23,936 sperm donor candidates who were recruited by the Henan Human Sperm Bank of China between 2009 and 2019. To minimize intra-individual bias, we included only the first ejaculate provided by each sperm donor candidate. The following parameters were measured: volume, sperm concentration, total sperm count, progressive motility, and total motility. After adjustment for age, body mass index (BMI), and sexual abstinence duration, we evaluated changes in main semen parameters over time using multiple linear regression analyses. The sperm concentration decreased from 62.0 million/mL in 2009 to 32.0 million/mL in 2019 (P < 0.001), with an average annual rate of 3.9%. The total sperm count decreased from 160.0 million in 2009 to 80.0 million in 2019 (P < 0.001), with an average annual rate of 4.2%. The progressive motility decreased from 54.0% in 2009 to 40.0% in 2019 (P < 0.001), with an average annual rate of 2.5%. The total motility decreased from 60.0% in 2009 to 46.0% in 2019 (P < 0.001), with an average annual rate of 1.9%. Our results indicated that semen quality among sperm donor candidates had decreased during the study period in Henan Province, China.
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Affiliation(s)
- Junjie Liu
- Henan Human Sperm Bank, The Third Affiliated Hospital of Zhengzhou University, No. 7 Front Kangfu Street, Er'qi District, Zhengzhou, 450052, China
| | - Yanpeng Dai
- Department of Clinical Laboratory, The Third Affiliated Hospital of Zhengzhou University, No.7 Front Kangfu Street, Er'qi District, Zhengzhou, 450052, China
| | - Yushan Li
- Henan Human Sperm Bank, The Third Affiliated Hospital of Zhengzhou University, No. 7 Front Kangfu Street, Er'qi District, Zhengzhou, 450052, China.
| | - Enwu Yuan
- Department of Clinical Laboratory, The Third Affiliated Hospital of Zhengzhou University, No.7 Front Kangfu Street, Er'qi District, Zhengzhou, 450052, China.
| | - Quanxian Wang
- Henan Human Sperm Bank, The Third Affiliated Hospital of Zhengzhou University, No. 7 Front Kangfu Street, Er'qi District, Zhengzhou, 450052, China
| | - Xingling Wang
- Center for Reproductive Medicine, The Third Affiliated Hospital of Zhengzhou University, No.7 Front Kangfu Street, Er'qi District, Zhengzhou, 450052, China
| | - Yichun Guan
- Center for Reproductive Medicine, The Third Affiliated Hospital of Zhengzhou University, No.7 Front Kangfu Street, Er'qi District, Zhengzhou, 450052, China
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24
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Zhu Q, Li X, Ge RS. Toxicological Effects of Cadmium on Mammalian Testis. Front Genet 2020; 11:527. [PMID: 32528534 PMCID: PMC7265816 DOI: 10.3389/fgene.2020.00527] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 04/30/2020] [Indexed: 12/15/2022] Open
Abstract
Cadmium is a heavy metal, and people are exposed to it through contaminated foods and smoking. In humans and other mammals, cadmium causes damage to male testis. In this review, we summarize the effects of cadmium on the development and function of the testis. Cadmium causes severe structural damage to the seminiferous tubules, Sertoli cells, and blood-testis barrier, thus leading to the loss of sperm. Cadmium hinders Leydig cell development, inhibits Leydig cell function, and induces Leydig cell tumors. Cadmium also disrupts the vascular system of the testis. Cadmium is a reactive oxygen species inducer and possibly induces DNA damage, thus epigenetically regulating somatic cell and germ cell function, leading to male subfertility/infertility.
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Affiliation(s)
- Qiqi Zhu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaoheng Li
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ren-Shan Ge
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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25
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Durand P, Blondet A, Martin G, Carette D, Pointis G, Perrard MH. Effects of a mixture of low doses of atrazine and benzo[a]pyrene on the rat seminiferous epithelium either during or after the establishment of the blood-testis barrier in the rat seminiferous tubule culture model. Toxicol In Vitro 2020; 62:104699. [DOI: 10.1016/j.tiv.2019.104699] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/19/2019] [Accepted: 10/22/2019] [Indexed: 10/25/2022]
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26
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Li H, Zhang P, Zhao Y, Zhang H. Low doses of carbendazim and chlorothalonil synergized to impair mouse spermatogenesis through epigenetic pathways. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 188:109908. [PMID: 31706243 DOI: 10.1016/j.ecoenv.2019.109908] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/29/2019] [Accepted: 10/31/2019] [Indexed: 06/10/2023]
Abstract
Pesticides have been extensively produced and used to help the agricultural production which leads to the contamination of the environment, soil, groundwater sources, and even foodstuffs. Fungicides carbendazim (CBZ) and chlorothalonil (Chl) are widely applied in agriculture and other aspects. CBZ or Chl have been reported to disrupt spermatogenesis and decrease semen quality. However, it is not understood the effects of pubertal exposure to low doses of CBZ and Chl together, and the underlying mechanisms. Therefore, the aim of current investigation was to explore the negative impacts of pubertal exposure to low doses of CBZ and Chl together on spermatogenesis and the role of epigenetic modifications in the process. We demonstrated that CBZ and Chl together synergize to decrease sperm motility in vitro (CBZ 1.0 + Chl 0.1, CBZ 10.0 + CHl 1.0, CBZ 100.0 + Chl 10 μM in incubation medium for 24 h) and sperm concentration and motility in vivo with ICR mice (CBZ 0.1 + Chl 0.1, CBZ 1.0 + CHl 1.0, CBZ 10.0 + Chl 10 mg/kg body weight; oral gavage for five weeks). CBZ + Chl significantly increase reactive oxygen species (ROS) and apoptosis by the increase in the protein level of caspase 8 in vitro. Moreover, CBZ + Chl synergized to disrupt mouse spermatogenesis with the disturbance in sperm production proteins and sperm proteins (VASA, A-Myb, STK31, AR, Acrosin). CBZ + Chl synergized to decrease the protein level of estrogen receptor alpha and the protein level of DNA methylation marker 5 mC in Leydig cells, and to increase the protein levels of histone methylation marker H3K9 and the methylation enzyme G9a in germ cells. Therefore, greater attention should be paid to the use of CBZ and Chl as pesticides to minimise their adverse impacts on spermatogenesis.
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Affiliation(s)
- Huatao Li
- College of Veterinary Sciences, Qingdao Agricultural University, Qingdao, 266109, PR China
| | - Pengfei Zhang
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, PR China
| | - Yong Zhao
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, PR China; State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, PR China.
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, PR China.
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27
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Ai CE, Li CJ, Tsou MC, Chen JL, Hsi HC, Chien LC. Blood and seminal plasma mercury levels and predatory fish intake in relation to low semen quality. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:19425-19433. [PMID: 31077049 DOI: 10.1007/s11356-019-04592-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 02/18/2019] [Indexed: 06/09/2023]
Abstract
Declining human sperm quality has been demonstrated in several recent studies. Age, environmental factors, and nutritional factors can affect semen quality. Mercury (Hg) is considered a male reproductive toxicant. Animal studies indicated that exposure to Hg can cause DNA damage, sperm dysfunction, and decreased sperm motility. Some previous studies also revealed that blood Hg levels in infertile or subfertile males were higher than those in normal males. In this study, we recruited 84 male participants from a reproductive medical center and investigated the Hg, lead, and selenium levels in blood and seminal plasma. Participants were divided into two groups, low- and high-quality semen groups, according to the World Health Organization reference values for human semen characteristics. The distribution of blood reproductive hormones and information on participants' lifestyle and medical history were collected from structured questionnaires. Average Hg levels in blood were 9.3±5.9 versus 8.9±5.9 and in seminal plasma were 1.26±0.61 versus 1.05±0.52 μg/L in the low- and high-quality semen groups, respectively. There was a dose-dependent relationship between blood Hg levels and normal sperm morphology (p=0.02). Participants with predatory fish intake and high blood Hg level had lower sperm with a normal morphology. Therefore, predatory fish intake may be a critical risk factor for elevated Hg levels in males and cause low semen quality.
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Affiliation(s)
- Chin-En Ai
- School of Public Health, Taipei Medical University, 250 Wuxing St., Xinyi Dist., Taipei, 110, Taiwan
| | - Ching-Jen Li
- School of Public Health, Taipei Medical University, 250 Wuxing St., Xinyi Dist., Taipei, 110, Taiwan
| | - Ming-Chien Tsou
- School of Public Health, Taipei Medical University, 250 Wuxing St., Xinyi Dist., Taipei, 110, Taiwan
| | - Jun-Lin Chen
- School of Public Health, Taipei Medical University, 250 Wuxing St., Xinyi Dist., Taipei, 110, Taiwan
| | - Hsing-Cheng Hsi
- Graduate Institute of Environmental Engineering, National Taiwan University, 71 Chou-Shan Rd., Taipei, 106, Taiwan.
| | - Ling-Chu Chien
- School of Public Health, Taipei Medical University, 250 Wuxing St., Xinyi Dist., Taipei, 110, Taiwan.
- Nutrition Research Center, Taipei Medical University Hospital, 250 Wuxing St., Xinyi Dist., Taipei, 110, Taiwan.
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Wang X, Tian X, Ye B, Zhang Y, Li C, Liao J, Zou Y, Zhang S, Zhu Y, Yang J, Ma L. Gaseous pollutant exposure affects semen quality in central China: a cross-sectional study. Andrology 2019; 8:117-124. [PMID: 31169363 DOI: 10.1111/andr.12655] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 04/17/2019] [Accepted: 05/03/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND Limited studies have explored the association between gaseous pollutant exposures and male reproductive outcomes, and findings remained inconsistent. OBJECTIVES To evaluate the potential association between gaseous pollutants and semen quality within different exposure windows. MATERIALS AND METHODS: We adopted semen quality data of 1852 subjects who attended the Reproductive Medicine Center of Renmin Hospital at Wuhan University during January 1st, 2013, to August 3rd, 2015. A generalized linear model was employed to assess the relationship between each exposure variable and sperm parameters in different exposure windows. RESULTS SO2 exposure with lag 0-90 days was significantly associated with decreased sperm concentration (β: -1.362; 95% CI: -1.844, -0.879), sperm count (β: -2.979; 95% CI: -4.267, -1.691), and PR (β: -0.551; 95% CI: -0.710, -0.393). Similar trends were observed for SO2 exposure with three other key periods (lag 0-9, 10-14, and 70-90 days). NO2 exposure with lag 0-90 days was also associated with decreased sperm concentration (β: -0.517; 95% CI: -1.006, -0.027), sperm count (β: -1.914; 95% CI: -3.214, -0.615), and PR (β: -0.264; 95% CI: -0.425, -0.102). No relationship between gaseous pollutant exposure and ejaculate volume was observed in any exposure window. DISCUSSION AND CONCLUSION Our study indicated a strong adverse effect of gaseous pollutants on semen quality outcomes during the sperm development. Gaseous pollution exposure appeared to be more detrimental in the initial phase of spermatogenesis.
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Affiliation(s)
- X Wang
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - X Tian
- Department of Healthcare Management, School of Health Sciences, Wuhan University, Wuhan, China
| | - B Ye
- Department of Healthcare Management, School of Health Sciences, Wuhan University, Wuhan, China
| | - Y Zhang
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - C Li
- Centre for Diseases Control and Prevention of the Lianyungang Economic and Technological Development Area, Lianyungang, China
| | - J Liao
- Department of Public Health, Wuhan University of Science and Technology School of Medicine, Wuhan, China
| | - Y Zou
- Department of Healthcare Management, School of Health Sciences, Wuhan University, Wuhan, China.,Global Health Institute, Wuhan University, Wuhan, China
| | - S Zhang
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Y Zhu
- Department of Healthcare Management, School of Health Sciences, Wuhan University, Wuhan, China
| | - J Yang
- Reproductive Medicine Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - L Ma
- Department of Healthcare Management, School of Health Sciences, Wuhan University, Wuhan, China.,Global Health Institute, Wuhan University, Wuhan, China
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Abstract
Importance Temporal global trends of sperm quality remain a matter of debate. Objective The aim of this study was to present a comprehensive review of studies reporting on sperm quality counts, summarize the main end points, and assess the main reasons for potential discrepancies. Evidence Acquisition An evidence-based review of PubMed and Scopus databases was performed regarding studies reporting on modification of sperm quality counts, independently of study character, study language, or date. Results Since the meta-analysis of Carlsen et al in 1992 (Br Med J 1992;305:609-613) that suggested an annual decline in sperm count of 1%, several reports confirmed the decline in sperm quality, whereas others disproved them, suggesting a slight increase or absence of change in sperm count. Such controversies may be attributed to geographical and time-related variability in sperm values and also to several confounding factors that influence the semen parameters. Intrinsic weaknesses of the studies include heterogeneity of subjects recruited, lack of adjustment for confounding factors, and samples that do not always represent the general population. Conclusions No consensus exists on whether sperm counts actually decrease because studies' results are often controversial or inconclusive with methodological deficiencies. More prospective, large-scale, population based studies are needed in order to provide sound evidence of possible global trends in sperm count.
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30
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Shen L, Tang X, Wei Y, Long C, Tan B, Wu S, Sun M, Zhou Y, Cao X, Wei G. Vitamin E and vitamin C attenuate Di-(2-ethylhexyl) phthalate-induced blood-testis barrier disruption by p38 MAPK in immature SD rats. Reprod Toxicol 2018; 81:17-27. [PMID: 29940330 DOI: 10.1016/j.reprotox.2018.06.015] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 06/20/2018] [Accepted: 06/21/2018] [Indexed: 12/24/2022]
Abstract
As an environmental endocrine disruptor, Di-(2-ethylhexyl) phthalate (DEHP) affects blood-testis barrier (BTB)-associated proteins expression, which compromises BTB integrity and causes infertility. Notably, DEHP-induced testicular toxicity is related to oxidative stress, but the specific mechanism remains unclear. Therefore, we sought to investigate this mechanism and determine whether vitamin C and vitamin E administration would attenuate the BTB impairment induced by DEHP in vivo and by Mono-(2-Ethylhexyl) Phthalate (MEHP) in vitro, respectively. HE staining and EM found that DEHP exposure led to spermatogenesis dysfunction and BTB disruption, respectively. The Western blot and immunofluorescence results showed that DEHP exposure caused BTB impairment through oxidative stress-mediated p38 mitogen-activated protein kinase (MAPK) signaling pathway. Furthermore, Vitamin E and vitamin C could alleviate the oxidative stress, block DEHP-induced spermatogenesis dysfunction and BTB disruption by inhibiting p38 MAPK signaling pathway. In summary, vitamin E and vitamin C are good candidates for the treatment of DEHP-induced male infertility.
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Affiliation(s)
- Lianju Shen
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, 400014, China
| | - Xiangliang Tang
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, 400014, China
| | - Yi Wei
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, 400014, China
| | - Chunlan Long
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, 400014, China
| | - Bin Tan
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, 400014, China
| | - Shengde Wu
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, 400014, China; Department of Pediatric Urology Surgery, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.
| | - Mang Sun
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, 400014, China
| | - Yue Zhou
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, 400014, China
| | - Xining Cao
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, 400014, China
| | - Guanghui Wei
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, 400014, China; Department of Pediatric Urology Surgery, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.
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Durand P, Martin G, Blondet A, Gilleron J, Carette D, Janczarski S, Christin E, Pointis G, Perrard MH. Effects of low doses of carbendazim or iprodione either separately or in mixture on the pubertal rat seminiferous epithelium: An ex vivo study. Toxicol In Vitro 2017; 45:366-373. [DOI: 10.1016/j.tiv.2017.05.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 04/18/2017] [Accepted: 05/29/2017] [Indexed: 12/19/2022]
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Wang L, Zhang L, Song XH, Zhang HB, Xu CY, Chen ZJ. Decline of semen quality among Chinese sperm bank donors within 7 years (2008-2014). Asian J Androl 2017; 19:521-525. [PMID: 27345004 PMCID: PMC5566843 DOI: 10.4103/1008-682x.179533] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 09/15/2015] [Accepted: 02/23/2016] [Indexed: 11/23/2022] Open
Abstract
Semen from 5210 sperm bank donors was analyzed and trends in semen quality were evaluated at Shandong Human Sperm Bank between 2008 and 2014. After 2-7 days of abstinence, semen samples were collected. Measurements of semen volume, sperm concentration, sperm forward motility, and total sperm count were performed. There were significant declining trends in semen volume, sperm concentration, sperm forward motility, and total sperm count. Our results indicate that the quality of semen in this cohort of sperm donors had decreased during the study period.
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Affiliation(s)
- Li Wang
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
- Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China
| | - Lin Zhang
- Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
- Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China
| | - Xiao-Hui Song
- Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
- Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China
| | - Hao-Bo Zhang
- Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
- Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China
| | - Cheng-Yan Xu
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
- Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
- Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, China
- Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan, China
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34
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Jiang LG, Cheng LY, Kong SH, Yang Y, Shen YJ, Chen C, Deng XH, Liu SZ, Chao L. Toxic effects of polychlorinated biphenyls (Aroclor 1254) on human sperm motility. Asian J Androl 2017; 19:561-566. [PMID: 27624986 PMCID: PMC5566850 DOI: 10.4103/1008-682x.186876] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/31/2016] [Accepted: 06/16/2016] [Indexed: 01/08/2023] Open
Abstract
Polychlorinated biphenyls (PCBs) are common environmental contaminants that represent a considerable risk to reproductive toxicity in exposed human populations. Although some experimental studies have suggested an association between the levels of PCBs and semen quality, the direct effects of PCBs on human sperm parameters remain largely unexplored. To this aim, a short-term in vitro incubation experiment that better imitated the putative exposure of sperm to Aroclor 1254 (a commercial PCB mixture) in male reproduction tissue was conducted. Human sperm were incubated with various concentrations (0, 1, 5, or 25 mg l-1) of Aroclor 1254 for different amounts of time (3 and 6 h) in vitro. Sperm motility parameters were analyzed with computer-assisted sperm analysis (CASA). The proportion of sperm with high mitochondrial membrane potential (ΔΨm) and the levels of intracellular reactive oxygen species (ROS) were detected to explore the probable cause of sperm impairment. Human sperm exposed to continuous Aroclor 1254 exhibited: (i) reduced sperm motility and kinematic parameters, (ii) a proportion of sperm with high ΔΨm that decreased in a dose-dependent manner (P < 0.05), and (iii) increased levels of ROS compared with controls (P < 0.05). In conclusion, Aroclor 1254 can decrease sperm motility, which may culminate in increased ROS and general mitochondrial dysfunction, thus affecting the fertilization potential of sperm. Our findings suggest a broader understanding of the effect of Aroclor 1254 on human sperm.
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Affiliation(s)
- Li-Gang Jiang
- Infertility Center, Qilu Hospital of Shandong University, Jinan 250014, Shandong, China
| | - Lai-Yang Cheng
- Infertility Center, Qilu Hospital of Shandong University, Jinan 250014, Shandong, China
| | - Shu-Hui Kong
- College of Life Science, Shandong University, Jinan 250014, Shandong, China
| | - Yang Yang
- Infertility Center, Qilu Hospital of Shandong University, Jinan 250014, Shandong, China
| | - Yan-Jun Shen
- Infertility Center, Qilu Hospital of Shandong University, Jinan 250014, Shandong, China
| | - Chao Chen
- Infertility Center, Qilu Hospital of Shandong University, Jinan 250014, Shandong, China
| | - Xiao-Hui Deng
- Infertility Center, Qilu Hospital of Shandong University, Jinan 250014, Shandong, China
| | - Shu-Zhen Liu
- Key Laboratory of Animal Resistance Research, College of Life Science, Shandong Normal University, Jinan 250014, Shandong, China
| | - Lan Chao
- Infertility Center, Qilu Hospital of Shandong University, Jinan 250014, Shandong, China
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Melatonin ameliorates restraint stress-induced oxidative stress and apoptosis in testicular cells via NF-κB/iNOS and Nrf2/ HO-1 signaling pathway. Sci Rep 2017; 7:9599. [PMID: 28851995 PMCID: PMC5575312 DOI: 10.1038/s41598-017-09943-2] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 08/01/2017] [Indexed: 01/03/2023] Open
Abstract
Decline in semen quality has become a global public health concern. Psychological stress is common in the current modern society and is associated with semen decline. Increasing evidence demonstrated that melatonin has anti-apoptotic and antioxidant functions. Whether melatonin can ameliorate the damage in testes induced by psychological stress has never been investigated. Here, a mouse model of restraint stress demonstrated that melatonin normalized the sperm density decline, testicular cells apoptosis, and testicular oxidative stress in stressed male mice. Melatonin decreased reactive oxygen species (ROS) level, increased superoxide dismutase (SOD) and glutathione (GSH) activities, and downregulated inducible nitric oxide synthase (iNOS) and tumor necrosis factor-α (TNF-α) activities in stressed mice testes. Furthermore, melatonin reduced the stress-induced activation of the NF-κB signaling pathway by decreasing the phosphorylation of nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha (IκBα) and p65 nuclear translocation. In addition, melatonin upregulated the expression of anti-oxidant proteins including nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1). Meanwhile, in vitro studies also demonstrated melatonin could reduce oxidative apoptosis of testicular cells. Collectively, melatonin mitigated psychological stress-induced spermatogenic damage, which provides evidence for melatonin as a therapy against sperm impairment associated with psychological stress.
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Sengupta P, Borges E, Dutta S, Krajewska-Kulak E. Decline in sperm count in European men during the past 50 years. Hum Exp Toxicol 2017; 37:247-255. [DOI: 10.1177/0960327117703690] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Purpose: To investigate whether the sperm concentration of European men is deteriorating over the past 50 years of time. Materials and Methods: We analysed the data published in English language articles in the past 50 years in altering sperm concentration in European men. Results: A time-dependent decline of sperm concentration ( r = −0.307, p = 0.02) in the last 50 years and an overall 32.5% decrease in mean sperm concentration was noted. Conclusion: This comprehensive, evidence-based meta-analysis concisely presents the evidence of decreased sperm concentration in European male over the past 50 years to serve the scientific research zone related to male reproductive health.
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Affiliation(s)
- P Sengupta
- Physiology Unit, Faculty of Medicine, Lincoln University College, Malaysia
- Integrated Medical Care, Medical University of Bialystok, Bialystok, Poland
| | - E Borges
- Fertility Medical Group, Avenida Brigadeiro Luiz Antônio, São Paulo, Brazil
| | - S Dutta
- Faculty of Science, Lincoln University College, Malaysia
| | - E Krajewska-Kulak
- Integrated Medical Care, Medical University of Bialystok, Bialystok, Poland
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37
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Ali S, Chaspoul F, Anderson L, Bergé-Lefranc D, Achard V, Perrin J, Gallice P, Guichaoua M. Mapping Fifteen Trace Elements in Human Seminal Plasma and Sperm DNA. Biol Trace Elem Res 2017; 175:244-253. [PMID: 27278963 DOI: 10.1007/s12011-016-0772-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 05/31/2016] [Indexed: 12/26/2022]
Abstract
Studies suggest a relationship between semen quality and the concentration of trace elements in serum or seminal plasma. However, trace elements may be linked to DNA and capable of altering the gene expression patterns. Thus, trace element interactions with DNA may contribute to the mechanisms for a trans-generational reproductive effect. We developed an analytical method to determine the amount of trace elements bound to the sperm DNA, and to estimate their affinity for the sperm DNA by the ratio: R = Log [metal concentration in the sperm DNA/metal concentration in seminal plasma]. We then analyzed the concentrations of 15 trace elements (Al, Cd, Cr, Cu, Hg, Mn, Mo, Ni, Pb, Ti, V, Zn, As, Sb, and Se) in the seminal plasma and the sperm DNA in 64 normal and 30 abnormal semen specimens with Inductively Coupled Plasma/Mass Spectrometry (ICP-MS). This study showed all trace elements were detected in the seminal plasma and only metals were detected in the sperm DNA. There was no correlation between the metals' concentrations in the seminal plasma and the sperm DNA. Al had the highest affinity for DNA followed by Pb and Cd. This strong affinity is consistent with the known mutagenic effects of these metals. The lowest affinity was observed for Zn and Ti. We observed a significant increase of Al linked to the sperm DNA of patients with oligozoospermia and teratozoospermia. Al's reproductive toxicity might be due to Al linked to DNA, by altering spermatogenesis and expression patterns of genes involved in the function of reproduction.
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Affiliation(s)
- Sazan Ali
- Department of Biology, Faculty of Science and Education Sciences, School of Science, University of Sulaimani, Sulaimani, Kurdistan Region, Iraq
- IMBE, UMR CNRS, IRD, Faculté de Médecine, Aix Marseille Université, Avignon Université, Marseille, France
| | - Florence Chaspoul
- IMBE, UMR CNRS, IRD, Faculté de Médecine, Aix Marseille Université, Avignon Université, Marseille, France.
- Laboratoire de Chimie Physique et Prévention des risques et Nuisances Technologiques, Faculté de Pharmacie, Marseille, France.
| | - Loundou Anderson
- Methodological Assistance Unity for Clinical Research, Department of Public Health, Faculty of Medicine, Marseille, France
| | - David Bergé-Lefranc
- IMBE, UMR CNRS, IRD, Faculté de Médecine, Aix Marseille Université, Avignon Université, Marseille, France
- Laboratoire de Chimie Physique et Prévention des risques et Nuisances Technologiques, Faculté de Pharmacie, Marseille, France
| | - Vincent Achard
- IMBE, UMR CNRS, IRD, Faculté de Médecine, Aix Marseille Université, Avignon Université, Marseille, France
- Department of Gynecology Obstetrics and Reproduction (Gynepole), CECOS Laboratory of Biology of Reproduction, AP-HM La Conception University Hospital, Marseille, France
| | - Jeanne Perrin
- IMBE, UMR CNRS, IRD, Faculté de Médecine, Aix Marseille Université, Avignon Université, Marseille, France
- Department of Gynecology Obstetrics and Reproduction (Gynepole), CECOS Laboratory of Biology of Reproduction, AP-HM La Conception University Hospital, Marseille, France
| | - Philippe Gallice
- IMBE, UMR CNRS, IRD, Faculté de Médecine, Aix Marseille Université, Avignon Université, Marseille, France
- Laboratoire de Chimie Physique et Prévention des risques et Nuisances Technologiques, Faculté de Pharmacie, Marseille, France
| | - Marie Guichaoua
- IMBE, UMR CNRS, IRD, Faculté de Médecine, Aix Marseille Université, Avignon Université, Marseille, France
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Gabrielsen JS, Tanrikut C. Chronic exposures and male fertility: the impacts of environment, diet, and drug use on spermatogenesis. Andrology 2016; 4:648-61. [DOI: 10.1111/andr.12198] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 03/07/2016] [Accepted: 03/10/2016] [Indexed: 01/02/2023]
Affiliation(s)
- J. S. Gabrielsen
- Department of Urology; Massachusetts General Hospital; Boston MA USA
| | - C. Tanrikut
- Department of Urology; Massachusetts General Hospital; Boston MA USA
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40
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Sengupta P, Dutta S, Krajewska-Kulak E. The Disappearing Sperms: Analysis of Reports Published Between 1980 and 2015. Am J Mens Health 2016; 11:1279-1304. [PMID: 27099345 DOI: 10.1177/1557988316643383] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Reports regarding the changes in sperm concentration in different counties of the world are inconsistent. Furthermore, the reports that sprung up from specific epidemiological and experimental examinations did not include data of prior studies or geographical variations. The current study, following a previous report of massive fall in semen volume over the past 33 years, attempts to delineate the trend of altering sperm concentrations and factors responsible for this by reviewing article published from 1980 to July 2015 with geographic differences. The current study identified an overall 57% diminution in mean sperm concentration over the past 35 years ( r = -.313, p = .0002), which, when analyzed for each geographical region, identified a significant decline in North America, Europe, Asia, and Africa. An increasing trend of sperm concentration was identified only in Australia. The association of male age with such a trend ( R2 = .979) is reported. The authors also correlated male fertility with sperm concentration. Thus, this comprehensive, evidence-based literature review aims to concisely and systematically present the available data on sperm concentration from 1980 to 2015, as well as to statistically analyze the same and correlate male health with the declining pattern of sperm count in a single scientific review to serve the scientific research zone related to reproductive health. It points to the threat of male infertility in times ahead.
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Affiliation(s)
| | - Sulagna Dutta
- 2 Ex-guest Teacher, Serampore College, University of Calcutta, Kolkata, West Bengal, India
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41
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Basnet P, Hansen SA, Olaussen IK, Hentemann MA, Acharya G. Changes in the semen quality among 5739 men seeking infertility treatment in Northern Norway over past 20 years (1993–2012). ACTA ACUST UNITED AC 2016. [DOI: 10.1177/2058915816633539] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Semen quality plays a pivotal role in sustaining the fertility rate and healthy population growth. Therefore, assessment of temporal trends in the semen quality provides valuable public health information. We analyzed the semen quality parameters of 5739 North Norwegian men among consecutive couples attending the fertility clinic of University Hospital of North Norway for investigation and/or treatment from 1993 to 2012. The seminal fluid volume, sperm concentration, and total sperm count were found to have gradually decreased during the past 20 years. The proportion of hypospermic, azoospermic, and oligozoospermic men had increased by 24.6% ( p < 0.001), 109.5% ( p < 0.001), and 9.5% ( p = 0.05), respectively, in the last decade (2003–2012) compared to the first decade (1993–2002). The parameters of semen quality are rapidly deteriorating in North Norwegian men seeking fertility treatment.
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Affiliation(s)
- Purusotam Basnet
- IVF Unit, Department of Obstetrics and Gynecology, University Hospital of North Norway, Tromsø, Norway
- Women’s Health and Perinatology Research Group, Department of Clinical Medicine, Faculty of Health Sciences, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Sissel A Hansen
- IVF Unit, Department of Obstetrics and Gynecology, University Hospital of North Norway, Tromsø, Norway
| | - Inger K Olaussen
- IVF Unit, Department of Obstetrics and Gynecology, University Hospital of North Norway, Tromsø, Norway
| | - Martha A Hentemann
- IVF Unit, Department of Obstetrics and Gynecology, University Hospital of North Norway, Tromsø, Norway
- Women’s Health and Perinatology Research Group, Department of Clinical Medicine, Faculty of Health Sciences, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Ganesh Acharya
- IVF Unit, Department of Obstetrics and Gynecology, University Hospital of North Norway, Tromsø, Norway
- Women’s Health and Perinatology Research Group, Department of Clinical Medicine, Faculty of Health Sciences, UiT-The Arctic University of Norway, Tromsø, Norway
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42
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Kumar N, Singh AK. Trends of male factor infertility, an important cause of infertility: A review of literature. J Hum Reprod Sci 2016; 8:191-6. [PMID: 26752853 PMCID: PMC4691969 DOI: 10.4103/0974-1208.170370] [Citation(s) in RCA: 529] [Impact Index Per Article: 66.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Infertility and problems of impaired fecundity have been a concern through ages and is also a significant clinical problem today, which affects 8–12% of couples worldwide. Of all infertility cases, approximately 40–50% is due to “male factor” infertility and as many as 2% of all men will exhibit suboptimal sperm parameters. It may be one or a combination of low sperm concentration, poor sperm motility, or abnormal morphology. The rates of infertility in less industrialized nations are markedly higher and infectious diseases are responsible for a greater proportion of infertility. The present literature will help in knowing the trends of male factor infertility in developing nations like India and to find out in future, various factors that may be responsible for male infertility.
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Affiliation(s)
- Naina Kumar
- Department of Obstetrics and Gynecology, Mahatma Gandhi Institute of Medical Sciences, Wardha, Maharashtra, India
| | - Amit Kant Singh
- Department of Physiology, Rural Institute of Medical Sciences, Safai, Uttar Pradesh, India
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43
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Tang YG, Tang LX, Wang QL, Song G, Jiang YJ, Deng SM, Jiang F, Qin WB. The reference values for semen parameters of 1213 fertile men in Guangdong Province in China. Asian J Androl 2015; 17:298-303. [PMID: 25432502 PMCID: PMC4650483 DOI: 10.4103/1008-682x.143251] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Semen samples were collected from 1213 fertile men whose partners had a time-to-pregnancy (TTP) ≤12 months in Guangdong Province in Southern China, and semen parameters including semen volume, sperm concentration, total counts, motility, and morphology were evaluated according to the World Health Organization (WHO) 2010 guideline. All semen parameters analyzed were normal in ~62.2% of the total samples, whereas ~37.8% showed at least one of the semen parameters below normal threshold values. The fifth centiles (with 95% confidence intervals) were 1.3 (1.2–1.5) ml for semen volume, 20 × 106 (18×106–20×106) ml−1 for sperm concentration, 40 × 106 (38×106–44×106) per ejaculate for total sperm counts, 48% (47%–53%) for vitality, 39% (36%–43%) for total motility, 25% (23%–27%) for sperm progressive motility, 5.0% (4%–5%) for normal morphology. The pH values ranged from 7.2 to 8.0 with the mean ± standard deviation at 7.32 ± 0.17. No effects of age and body mass index were found on semen parameters. Occupation, smoking and alcohol abuse, varicocele appeared to decrease semen quality. Sperm concentration, but not sperm morphology, is positively correlated with TTP, whereas vitality is negatively correlated with TTP. Our study provides the latest reference values for the semen parameters of Chinese fertile men in Guangdong Province, which are close to those described in the new WHO guidelines (5th Edition).
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Affiliation(s)
- Yun-Ge Tang
- Key Laboratory of Male Reproductive and Genetics, National Health and Family Planning Commission; Department of Male Reproduction, Family Planning Research Institute of Guangdong; Human Sperm Bank of Guangdong Province, Guanzghou 510600, China
| | | | | | | | | | | | | | - Wei-Bing Qin
- Key Laboratory of Male Reproductive and Genetics, National Health and Family Planning Commission; Department of Male Reproduction, Family Planning Research Institute of Guangdong; Human Sperm Bank of Guangdong Province, Guanzghou 510600, China
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44
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Carette D, Blondet A, Martin G, Montillet G, Janczarski S, Christin E, Pointis G, Durand P, Perrard MH. Endocrine Disrupting Effects of Noncytotoxic Doses of Carbendazim on the Pubertal Rat Seminiferous Epithelium: An Ex Vivo Study. ACTA ACUST UNITED AC 2015. [DOI: 10.1089/aivt.2015.0017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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45
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Ould Hamouda S, Perrin J, Achard V, Courbière B, Grillo JM, Sari-Minodier I. [Association between sperm abnormalities and occupational environment among male consulting for couple infertility]. ACTA ACUST UNITED AC 2015; 45:1-10. [PMID: 26387599 DOI: 10.1016/j.jgyn.2015.08.011] [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: 09/12/2014] [Revised: 08/02/2015] [Accepted: 08/25/2015] [Indexed: 11/26/2022]
Abstract
Alteration of sperm parameters related to occupational exposures is the subject of several studies, often on a case-control approach. The study populations usually comprise men consulting in infertility clinics for couple infertility. The objective of this review is to identify, from these case-control studies, the main occupational factors that may be associated with altered sperm parameters. We selected 13 articles in the PubMed database. Participation in these studies varied from 61 to 2619 subjects, with great methodological heterogeneity, particularly in the characterization of exposure. The main occupations that appear significantly associated with a risk of altered sperm parameters are workmen, painters, farmers, welders, plumbers and technicians. When analysis focuses on occupational exposures, a significant result is reported for solvents, heavy metals, heat, vibrations and non-ionizing radiation. None of the selected studies has found a link with exposure to pesticides.
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Affiliation(s)
- S Ould Hamouda
- Service de médecine et santé au travail, pôle de santé publique, Assistance publique-Hôpitaux de Marseille (AP-HM) la Timone, 13005 Marseille, France; CECOS-laboratoire de biologie de la reproduction, pôle de gynécologie obstétrique et reproduction (Gynépôle), Assistance publique-Hôpitaux de Marseille (AP-HM) la Conception, 13005 Marseille, France
| | - J Perrin
- CECOS-laboratoire de biologie de la reproduction, pôle de gynécologie obstétrique et reproduction (Gynépôle), Assistance publique-Hôpitaux de Marseille (AP-HM) la Conception, 13005 Marseille, France; Centre clinico-biologique d'assistance médicale à la procréation, pôle de gynécologie obstétrique et reproduction (Gynépôle), Assistance publique-Hôpitaux de Marseille (AP-HM) la Conception, 13005 Marseille, France; Institut méditerranéen de biodiversité et d'écologie (IMBE UMR 7263), équipe biogénotoxicologie, santé humaine et environnement, faculté de médecine, Aix Marseille université, CNRS, IRD, université Avignon, 27, boulevard Jean-Moulin, 13385 Marseille cedex 5, France
| | - V Achard
- CECOS-laboratoire de biologie de la reproduction, pôle de gynécologie obstétrique et reproduction (Gynépôle), Assistance publique-Hôpitaux de Marseille (AP-HM) la Conception, 13005 Marseille, France; Centre clinico-biologique d'assistance médicale à la procréation, pôle de gynécologie obstétrique et reproduction (Gynépôle), Assistance publique-Hôpitaux de Marseille (AP-HM) la Conception, 13005 Marseille, France; Institut méditerranéen de biodiversité et d'écologie (IMBE UMR 7263), équipe biogénotoxicologie, santé humaine et environnement, faculté de médecine, Aix Marseille université, CNRS, IRD, université Avignon, 27, boulevard Jean-Moulin, 13385 Marseille cedex 5, France
| | - B Courbière
- Centre clinico-biologique d'assistance médicale à la procréation, pôle de gynécologie obstétrique et reproduction (Gynépôle), Assistance publique-Hôpitaux de Marseille (AP-HM) la Conception, 13005 Marseille, France; Institut méditerranéen de biodiversité et d'écologie (IMBE UMR 7263), équipe biogénotoxicologie, santé humaine et environnement, faculté de médecine, Aix Marseille université, CNRS, IRD, université Avignon, 27, boulevard Jean-Moulin, 13385 Marseille cedex 5, France
| | - J-M Grillo
- CECOS-laboratoire de biologie de la reproduction, pôle de gynécologie obstétrique et reproduction (Gynépôle), Assistance publique-Hôpitaux de Marseille (AP-HM) la Conception, 13005 Marseille, France; Centre clinico-biologique d'assistance médicale à la procréation, pôle de gynécologie obstétrique et reproduction (Gynépôle), Assistance publique-Hôpitaux de Marseille (AP-HM) la Conception, 13005 Marseille, France; Institut méditerranéen de biodiversité et d'écologie (IMBE UMR 7263), équipe biogénotoxicologie, santé humaine et environnement, faculté de médecine, Aix Marseille université, CNRS, IRD, université Avignon, 27, boulevard Jean-Moulin, 13385 Marseille cedex 5, France
| | - I Sari-Minodier
- Service de médecine et santé au travail, pôle de santé publique, Assistance publique-Hôpitaux de Marseille (AP-HM) la Timone, 13005 Marseille, France; Institut méditerranéen de biodiversité et d'écologie (IMBE UMR 7263), équipe biogénotoxicologie, santé humaine et environnement, faculté de médecine, Aix Marseille université, CNRS, IRD, université Avignon, 27, boulevard Jean-Moulin, 13385 Marseille cedex 5, France.
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Borges E, Setti AS, Braga DPDAF, Figueira RDCS, Iaconelli A. Decline in semen quality among infertile men in Brazil during the past 10 years. Int Braz J Urol 2015; 41:757-63. [PMID: 26401870 PMCID: PMC4757006 DOI: 10.1590/s1677-5538.ibju.2014.0186] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 12/01/2014] [Indexed: 01/03/2023] Open
Abstract
PURPOSE To investigate whether the semen quality of men undergoing conventional semen analysis is deteriorating over time. MATERIALS AND METHODS We analyzed and compared the sperm count, motility and morphology of 2300 semen samples provided by males undergoing conventional seminal analysis, from years 2000 to 2002 and 2010 to 2012. The incidences of severe oligozoospermia and azoospermia over time were also compared. RESULTS A total of 764 sperm samples were analyzed in 2000-2002 and 1536 in 2010-2012. Over time, the mean sperm concentration/ml decreased significantly from 61.7 million in 2000-2002 to 26.7 million in 2010-2012 (R2 = 11.4%, p < 0.001), the total sperm concentration decreased significantly from 183.0 million to 82.8 million (R2 = 11.3%, p < 0.001), and the percentage of normal forms decreased significantly from 4.6% to 2.7% (R2 = 9.8%, p < 0.001). The incidence of severe oligozoospermia significantly increased from 15.7% to 30.3% (OR: 1.09, p < 0.001) and the incidence of azoospermia increased from 4.9% to 8.5% (OR: 1.06, p = 0.001). CONCLUSIONS This study demonstrated a significant time-related decline in semen quality of infertile patients. This finding might have implications on fertility and emphasizes the need for further studies addressing subject's life-style in order to find and reduce the causative agents. Future prospective and multicenter studies including representative samples of the general population are needed to confirm whether semen quality is really declining.
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Affiliation(s)
- Edson Borges
- Fertility, Centro de Fertilização Assistida, São Paulo, Brasil
- Instituto Sapientiae, Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brasil
| | - Amanda Souza Setti
- Fertility, Centro de Fertilização Assistida, São Paulo, Brasil
- Instituto Sapientiae, Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brasil
| | - Daniela Paes de Almeida Ferreira Braga
- Fertility, Centro de Fertilização Assistida, São Paulo, Brasil
- Instituto Sapientiae, Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brasil
| | | | - Assumpto Iaconelli
- Fertility, Centro de Fertilização Assistida, São Paulo, Brasil
- Instituto Sapientiae, Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brasil
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47
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Paoli D, Giannandrea F, Gallo M, Turci R, Cattaruzza MS, Lombardo F, Lenzi A, Gandini L. Exposure to polychlorinated biphenyls and hexachlorobenzene, semen quality and testicular cancer risk. J Endocrinol Invest 2015; 38:745-52. [PMID: 25770454 DOI: 10.1007/s40618-015-0251-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 01/27/2015] [Indexed: 11/28/2022]
Abstract
PURPOSE We carried out a case-control study to investigate the possible role of occupational and environmental exposure to endocrine disruptors in the onset of testicular cancer (TC). METHODS We evaluated 125 TC patients and 103 controls. Seminal fluid examination and organochlorine analysis were performed in all subjects. Cases and controls were also interviewed using a structured questionnaire to collect demographic information, residence, andrological medical history and dietary information. RESULTS We found that a higher level of reproductive tract birth defects was associated with a higher risk of TC. With regard to diet, cases reported a higher consumption of milk and dairy products than controls. Overall, there was a statistically significant increase in TC risk in cases with detectable values of total polychlorinated organic compounds against controls (14.4 vs. 1.0 %; p < 0.001). TC patients with detectable levels of organochlorines had lower mean semen parameters than those with undetectable levels, although this difference was not statistically significant. CONCLUSION The International Agency for Research on Cancer recently included dioxin-like polychlorinated biphenyls (PCBs) in Group 1 of known human carcinogens. Our study confirmed and identified various risk factors for testicular cancer: cryptorchidism, consumption of milk and dairy products, parents' occupation and serum concentration of hexachlorobenzene and PCBs and, for the first time, we showed the correlation between semen quality and the serum concentration of these pollutants.
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Affiliation(s)
- D Paoli
- Laboratory of Seminology-Sperm Bank, Department of Experimental Medicine, University of Rome "La Sapienza", Viale del Policlinico 155, 00161, Rome, Italy
| | - F Giannandrea
- Laboratory of Seminology-Sperm Bank, Department of Experimental Medicine, University of Rome "La Sapienza", Viale del Policlinico 155, 00161, Rome, Italy
| | - M Gallo
- Laboratory of Seminology-Sperm Bank, Department of Experimental Medicine, University of Rome "La Sapienza", Viale del Policlinico 155, 00161, Rome, Italy
| | - R Turci
- Laboratory for Environmental and Toxicological Testing, Salvatore Maugeri Foundation, Pavia, Italy
| | - M S Cattaruzza
- Department Public Health and Infection Disease, "La Sapienza" University of Rome, Rome, Italy
| | - F Lombardo
- Laboratory of Seminology-Sperm Bank, Department of Experimental Medicine, University of Rome "La Sapienza", Viale del Policlinico 155, 00161, Rome, Italy
| | - A Lenzi
- Laboratory of Seminology-Sperm Bank, Department of Experimental Medicine, University of Rome "La Sapienza", Viale del Policlinico 155, 00161, Rome, Italy
| | - L Gandini
- Laboratory of Seminology-Sperm Bank, Department of Experimental Medicine, University of Rome "La Sapienza", Viale del Policlinico 155, 00161, Rome, Italy.
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Gao Y, Mruk DD, Cheng CY. Sertoli cells are the target of environmental toxicants in the testis - a mechanistic and therapeutic insight. Expert Opin Ther Targets 2015; 19:1073-90. [PMID: 25913180 DOI: 10.1517/14728222.2015.1039513] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Sertoli cells support germ cell development in the testis via an elaborate network of cell junctions that confers structural, communicating, and signaling support. However, Sertoli cell junctions and cytoskeletons are the target of environmental toxicants. Because germ cells rely on Sertoli cells for the provision of structural/functional/nutritional support, exposure of males to toxicants leads to germ cell exfoliation due to Sertoli cell injuries. Interestingly, the molecular mechanism(s) by which toxicants induce cytoskeletal disruption that leads to germ cell exfoliation is unclear, until recent years, which are discussed herein. This information can possibly be used to therapeutically manage toxicant-induced infertility/subfertility in human males. AREAS COVERED In this review, we provide a brief update on the use of Sertoli cell system developed for rodents and humans in vitro, which can be deployed in any research laboratory with minimal upfront setup costs. These systems can be used to collect reliable data applicable to studies in vivo. We also discuss the latest findings on the mechanisms by which toxicants induce Sertoli cell injury, in particular cytoskeletal disruption. We also identify candidate molecules that are likely targets of toxicants. EXPERT OPINION We provide two hypothetical models delineating the mechanism by which toxicants induce germ cell exfoliation and blood-testis barrier disruption. We also discuss molecules that are the targets of toxicants as therapeutic candidates.
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Affiliation(s)
- Ying Gao
- Population Council, Center for Biomedical Research , 1230 York Ave, New York, NY, 10065 , USA
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Klein J, Mold M, Mery L, Cottier M, Exley C. Aluminum content of human semen: Implications for semen quality. Reprod Toxicol 2014; 50:43-8. [DOI: 10.1016/j.reprotox.2014.10.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Revised: 09/17/2014] [Accepted: 10/01/2014] [Indexed: 11/16/2022]
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50
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Gorpinchenko I, Nikitin O, Banyra O, Shulyak A. The influence of direct mobile phone radiation on sperm quality. Cent European J Urol 2014; 67:65-71. [PMID: 24982785 PMCID: PMC4074720 DOI: 10.5173/ceju.2014.01.art14] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 11/27/2013] [Accepted: 01/15/2014] [Indexed: 11/22/2022] Open
Abstract
Introduction It is impossible to imagine a modern socially–active man who does not use mobile devices and/or computers with Wi–Fi function. The effect of mobile phone radiation on male fertility is the subject of recent interest and investigations. The aim of this study was to investigate the direct in vitro influence of mobile phone radiation on sperm DNA fragmentation and motility parameters in healthy subjects with normozoospermia. Material and methods 32 healthy men with normal semen parameters were selected for the study. Each sperm sample was divided into two equal portions (A and B). Portions A of all involved men were placed for 5 hours in a thermostat, and portions B were placed into a second thermostat for the same period of time, where a mobile phone in standby/talk mode was placed. After 5 hours of incubation the sperm samples from both thermostats were re–evaluated regarding basic motility parameters. The presence of DNA fragmentation in both A and B portions of each sample was determined each hour using a standard sperm chromatin dispersion test. Results The number of spermatozoa with progressive movement in the group, influenced by electromagnetic radiation, is statistically lower than the number of spermatozoa with progressive movement in the group under no effect of the mobile phone. The number of non–progressive movement spermatozoa was significantly higher in the group, which was influenced by cell phone radiation. The DNA fragmentation was also significantly higher in this group. Conclusions A correlation exists between mobile phone radiation exposure, DNA–fragmentation level and decreased sperm motility.
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Affiliation(s)
- Igor Gorpinchenko
- State Institution "Institute of Urology at the National Academy of Medical Sciences of Ukraine", Kyiv, Ukraine
| | - Oleg Nikitin
- O.O. Bogomolets National Medical University, Urology Department, Kyiv, Ukraine
| | - Oleg Banyra
- 2nd Lviv Municipal Polyclinic, Lviv, Ukraine
| | - Alexander Shulyak
- State Institution "Institute of Urology at the National Academy of Medical Sciences of Ukraine", Kyiv, Ukraine
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