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Pakmanesh H, Nazarirobati N, Dabiri S, Mirshekari TR, Eslami N, Torabinavid P, Rouientan H, Narouie B. Impact of Season Variation on Semen Quality: A Comprehensive Retrospective Analysis of Data From Patients at an Eastern Iranian Tertiary Care Fertility Center Over a Decade. Am J Mens Health 2024; 18:15579883241237505. [PMID: 38509696 PMCID: PMC10956154 DOI: 10.1177/15579883241237505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/15/2024] [Accepted: 02/19/2024] [Indexed: 03/22/2024] Open
Abstract
Seasonal changes are assumed to affect various sperm characteristics based on photoperiods, temperature, and air pollution. According to the literature, most studies were performed on populations of Western countries, and there are limited studies performed in the Middle East with variable results. This study evaluated the seasonality of sperm characteristics among men of reproductive age in an andrology center in Kerman, Iran, where the seasonal temperature varies significantly, with average temperatures ranging from 50 °F (10 °C) to 75.2 °F (24 °C). We retrospectively evaluated the sperm analysis test record. Sperm samples were obtained from 2,948 men during 10 years, excluding those with azoospermia. Samples were assessed for volume, concentration, motility, and morphology according to the World Health Organization (WHO) criteria. We performed a comprehensive comparative literature review of the studies investigating the association between seasonal variation and sperm quality. The mean semen volume was higher in the summer compared with other seasons (p = .04). The mean percentage of sperm motility was higher in the spring and less in winter (p = .03). Sperm morphology-related parameters, measured by the percent of normal morphology, were significantly better in winter (p = .03). Our findings suggest seasonality of sperm characteristics among men of fertility age. Semen volume, motility, and morphology were affected by the photoperiod of reproductive seasons. Results might support the influential role of seasonal variations in the possibility of fertility, especially among those using assisted reproductive technologies and those with oligospermia.
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Affiliation(s)
- Hamid Pakmanesh
- Department of Urology, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Shahriar Dabiri
- Department of Pathology, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Nazanin Eslami
- Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Parham Torabinavid
- Pediatric Urology and Regenerative Medicine Research Center, Gene, Cell and Tissue Department of Pediatric Urology and Regenerative Medicine Research Center, Children’s Medical Center, Pediatric Center of Excellence, Tehran University of Medical Science, Tehran, Iran
| | - Hamidreza Rouientan
- Urology and Nephrology Research Center, Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Behzad Narouie
- Urology and Nephrology Research Center, Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Urology, Zahedan University of Medical Sciences, Zahedan, Iran
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2
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Kimmins S, Anderson RA, Barratt CLR, Behre HM, Catford SR, De Jonge CJ, Delbes G, Eisenberg ML, Garrido N, Houston BJ, Jørgensen N, Krausz C, Lismer A, McLachlan RI, Minhas S, Moss T, Pacey A, Priskorn L, Schlatt S, Trasler J, Trasande L, Tüttelmann F, Vazquez-Levin MH, Veltman JA, Zhang F, O'Bryan MK. Frequency, morbidity and equity - the case for increased research on male fertility. Nat Rev Urol 2024; 21:102-124. [PMID: 37828407 DOI: 10.1038/s41585-023-00820-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2023] [Indexed: 10/14/2023]
Abstract
Currently, most men with infertility cannot be given an aetiology, which reflects a lack of knowledge around gamete production and how it is affected by genetics and the environment. A failure to recognize the burden of male infertility and its potential as a biomarker for systemic illness exists. The absence of such knowledge results in patients generally being treated as a uniform group, for whom the strategy is to bypass the causality using medically assisted reproduction (MAR) techniques. In doing so, opportunities to prevent co-morbidity are missed and the burden of MAR is shifted to the woman. To advance understanding of men's reproductive health, longitudinal and multi-national centres for data and sample collection are essential. Such programmes must enable an integrated view of the consequences of genetics, epigenetics and environmental factors on fertility and offspring health. Definition and possible amelioration of the consequences of MAR for conceived children are needed. Inherent in this statement is the necessity to promote fertility restoration and/or use the least invasive MAR strategy available. To achieve this aim, protocols must be rigorously tested and the move towards personalized medicine encouraged. Equally, education of the public, governments and clinicians on the frequency and consequences of infertility is needed. Health options, including male contraceptives, must be expanded, and the opportunities encompassed in such investment understood. The pressing questions related to male reproductive health, spanning the spectrum of andrology are identified in the Expert Recommendation.
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Affiliation(s)
- Sarah Kimmins
- Department of Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
- The Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
- The Département de Pathologie et Biologie Cellulaire, Université de Montréal, Montreal, Quebec, Canada
| | - Richard A Anderson
- MRC Centre for Reproductive Health, University of Edinburgh, Edinburgh, UK
| | - Christopher L R Barratt
- Division of Systems Medicine, School of Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - Hermann M Behre
- Center for Reproductive Medicine and Andrology, University Hospital, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Sarah R Catford
- Hudson Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Obstetrics and Gynaecology, The Royal Women's Hospital, Melbourne, Victoria, Australia
| | | | - Geraldine Delbes
- Institut National de la Recherche Scientifique, Centre Armand-Frappier Sante Biotechnologie, Laval, Quebec, Canada
| | - Michael L Eisenberg
- Department of Urology and Obstetrics and Gynecology, Stanford University, Stanford, CA, USA
| | - Nicolas Garrido
- IVI Foundation, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Brendan J Houston
- School of BioSciences and Bio21 Institute, The University of Melbourne, Parkville, Melbourne, Australia
| | - Niels Jørgensen
- Department of Growth and Reproduction, International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Csilla Krausz
- Department of Experimental and Clinical Biomedical Sciences, 'Mario Serio', University of Florence, University Hospital of Careggi Florence, Florence, Italy
| | - Ariane Lismer
- Department of Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Robert I McLachlan
- Hudson Institute of Medical Research and the Department of Obstetrics and Gynaecology, Monash University, Melbourne, Australia
- Monash IVF Group, Richmond, Victoria, Australia
| | - Suks Minhas
- Department of Surgery and Cancer Imperial, London, UK
| | - Tim Moss
- Healthy Male and the Department of Obstetrics and Gynaecology, Monash University, Melbourne, Victoria, Australia
| | - Allan Pacey
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Lærke Priskorn
- Department of Growth and Reproduction, International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Stefan Schlatt
- Centre for Reproductive Medicine and Andrology, University of Münster, Münster, Germany
| | - Jacquetta Trasler
- Departments of Paediatrics, Human Genetics and Pharmacology & Therapeutics, McGill University and Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Leonardo Trasande
- Center for the Investigation of Environmental Hazards, Department of Paediatrics, NYU Grossman School of Medicine, New York, NY, USA
| | - Frank Tüttelmann
- Institute of Reproductive Genetics, University of Münster, Münster, Germany
| | - Mónica Hebe Vazquez-Levin
- Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas de Argentina, Fundación IBYME, Buenos Aires, Argentina
| | - Joris A Veltman
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Feng Zhang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
| | - Moira K O'Bryan
- School of BioSciences and Bio21 Institute, The University of Melbourne, Parkville, Melbourne, Australia.
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3
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Zarei S, Dehghan SF, Vaziri MH, Gilani MAS, Ardakani SK. Assessment of semen quality of taxi drivers exposed to whole body vibration. J Occup Med Toxicol 2022; 17:16. [PMID: 35922802 PMCID: PMC9347065 DOI: 10.1186/s12995-022-00357-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 07/20/2022] [Indexed: 11/10/2022] Open
Abstract
Whole body vibration (WBV) is a recognized occupational hazard for many workers such as drivers and operators of heavy and light machinery and exposure to it is accompanied by physical and mental repercussions. Only the limited studies have been done on the effects of vibration exposure on reproductive indices, however vibration exposure has been indicated as being a hazardous agents with the potential of being able to directly affect the reproductive system. Considering the importance of infertility, the present study was conducted with the aim of investigating semen quality among taxi drivers in Tehran and determine the effect of exposure to WBV on sperm parameters. The study population consisted of 70 taxi drivers and 70 office employee who attended infertility clinics for diagnostic purposes in the past year. The participants had to meet the entry criteria of the study while also being willing to recruit. Data was collected in the form of demographic questionnaires and general health questionnaires as well as sperm analysis conducted in an infertility clinic according to standard laboratory guidelines. The 8-hour time-weighted average (TWA) exposure to of WBV in automobile was measured as per ISO 2631-1. The TWA exposure to WBV among the taxi drivers and office employees were 0.697 ± 0.13 m/s2 and 0.068 ± 0.09 m/s2 respectively (P < 0.05). A statistically significant difference in total sperm count, progressive motility, non-progressive motility and total motility was observed between the taxi drivers and the office employees (P < 0.05). According to the univariate analysis of variance, exposure to WBV had negative effect on sperm concentration, progressive motility and normal morphology (P > 0.05); moreover exposure to WBV resulted in the larger effect size (B) on sperm parameters than the demographic variables (P > 0.05). Being taxi drivers increase the chance of the decreased semen quality (P > 0.05). It is difficult to draw definitive conclusions regarding the effects of WBV while intervening factors exist, such as psychological stressors, quality of sleep, background issues as well as environmental factors such as chemical pollutants (heavy metals) or ergonomic factors (body posture and working while sitting down).
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Affiliation(s)
- Sirvan Zarei
- Workplace Health Promotion Research Center, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Somayeh Farhang Dehghan
- Workplace Health Promotion Research Center, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Vaziri
- Workplace Health Promotion Research Center, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Sadighi Gilani
- Department of Urology, School of Medicine, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Osadchuk LV, Osadchuk AV. Role of CAG and GGC Polymorphism of the Androgen Receptor Gene in Male Fertility. RUSS J GENET+ 2022. [DOI: 10.1134/s1022795422020119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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5
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Osadchuk L, Shantanova L, Troev I, Kleshchev M, Osadchuk A. Regional and ethnic differences in semen quality and reproductive hormones in Russia: A Siberian population-based cohort study of young men. Andrology 2021; 9:1512-1525. [PMID: 33884771 PMCID: PMC8596582 DOI: 10.1111/andr.13024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 04/12/2021] [Accepted: 04/16/2021] [Indexed: 12/28/2022]
Abstract
Background This is the first large‐scale Russian study describing semen quality and reproductive hormone levels among young men. Objectives The aim of the study was to compare semen quality and reproductive hormone levels in young men of four cities and three ethnic groups living in the Siberian region of Russia and to find out ethnic or environmental reasons for regional differences. Materials and methods The study population consisted of 1291 young men from Novosibirsk, Kemerovo, Ulan‐Ude, and Yakutsk, including 1013 men of three most numerous ethnic groups: Slavs, Buryats, and Yakuts. Each participant provided one sperm and blood sample, information about lifestyle and ethnicity. Anthropometric parameters, semen quality and reproductive hormone levels, were evaluated. Results Significant regional and ethnic differences were detected for semen and reproductive hormone parameters. Median sperm concentrations in Novosibirsk, Kemerovo, Ulan‐Ude, and Yakutsk were 54.6, 39.9, 34.7, 33.1 × 106/ml; total sperm counts—202.5, 138.7, 97.9, 93.4 × 106; percentages of morphologically normal spermatozoa—7.8%, 6.5%, 6.3%, 5.0%, respectively. Median sperm concentrations in Slavs, Buryats, and Yakuts were 43.7, 37.0, 30.6 × 106/ml; total sperm counts—150.0, 102.3 and 74.8 × 106; percentages of morphologically normal spermatozoa—6.8%, 6.8%, 4.8%, respectively. Discussion The young men in Novosibirsk and Kemerovo, populated by Slavs, had a higher semen quality compared to Ulan‐Ude and Yakutsk, populated by Buryats and Yakuts, apparently due to the higher testicular function in Slavic compared to Asian ethnicity. Impaired spermatogenesis in young men in Kemerovo compared to Novosibirsk, located in the same climatic zone and having a socio‐cultural and ethnic identity, may be due to the influence of a polluted environment. Conclusion The findings suggest that ethnic composition and environment may be responsible for regional differences in semen and reproductive hormone parameters.
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Affiliation(s)
- Ludmila Osadchuk
- Federal Research Center 'Institute of Cytology and Genetics', the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Larisa Shantanova
- Institute of General and Experimental Biology, the Siberian Branch of the Russian Academy of Sciences, Ulan-Ude, Russia
| | - Ivan Troev
- M.K. Ammosov North-Eastern Federal University, Yakutsk, Russia
| | - Maxim Kleshchev
- Federal Research Center 'Institute of Cytology and Genetics', the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Alexander Osadchuk
- Federal Research Center 'Institute of Cytology and Genetics', the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
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6
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Panner Selvam MK, Ambar RF, Agarwal A, Henkel R. Etiologies of sperm DNA damage and its impact on male infertility. Andrologia 2020; 53:e13706. [PMID: 32559347 DOI: 10.1111/and.13706] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 05/11/2020] [Accepted: 05/15/2020] [Indexed: 12/12/2022] Open
Abstract
Male factor is responsible for up to 50% of infertility cases in the world. Semen analysis is considered the cornerstone of laboratory evaluation of male infertility, but it has its own drawbacks and fails to predict the male fertility potential with high sensitivity and specificity. Different etiologies have been linked with male infertility, of which sperm DNA damage has gained significant attention with extensive research on sperm function tests. The associations between sperm DNA damage and a variety of disorders such as varicocele, obesity, cancer, radiation and lifestyle factors are explored in this review. Furthermore, we discuss the mechanisms of DNA damage as well as its impact in different scenarios of male infertility, associated with spontaneous and assisted reproduction. Finally, we review the clinical applicability of sperm DNA fragmentation testing in the management of male infertility.
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Affiliation(s)
| | - Rafael F Ambar
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Sexual and Reproductive Medicine - Department of Urology, Faculdade de Medicina do ABC, Santo André, Brazil
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
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7
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Yuan HF, Shangguan HF, Zheng Y, Meng TQ, Xiong CL, Guan HT. Decline in semen concentration of healthy Chinese adults: evidence from 9357 participants from 2010 to 2015. Asian J Androl 2019; 20:379-384. [PMID: 29493550 PMCID: PMC6038153 DOI: 10.4103/aja.aja_80_17] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The present study aims to analyze sperm concentration trends among young and healthy Chinese adults in Wuhan, Central China, from 2010 to 2015. Semen analysis data from 9357 participants were collected and analyzed using a general linear model and the Cochran–Armitage trend test. A significant decline was observed in sperm concentration (β [standard deviation]: −1.53 [0.16]; P < 0.001). In addition, a decline in sperm density was observed by stratifying student versus nonstudent sperm donors and by analyzing the year of birth or birth year cohort of the participants. Furthermore, the percentage of participants with sperm densities of over 40 × 106 ml−1 significantly decreased with year. Notably, a dramatic decline in sperm density was recorded over the first 5 years of study. This research reported a decline in sperm concentration among young adults in Wuhan, Central China, in 2010–2015.
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Affiliation(s)
- Hong-Fang Yuan
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | | | - Yi Zheng
- Department of Venereology, Wuhan Institute of Dermatology and Venereology, Wuhan 430031, China
| | - Tian-Qing Meng
- Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Hubei Province Human Sperm Bank, Wuhan 430030, China
| | - Cheng-Liang Xiong
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Hubei Province Human Sperm Bank, Wuhan 430030, China
| | - Huang-Tao Guan
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Hubei Province Human Sperm Bank, Wuhan 430030, China
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8
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Wang Y, Sun X, Fang L, Li K, Yang P, Du L, Ji K, Wang J, Liu Q, Xu C, Li G, Giesy JP, Hecker M. Genomic instability in adult men involved in processing electronic waste in Northern China. ENVIRONMENT INTERNATIONAL 2018; 117:69-81. [PMID: 29727754 DOI: 10.1016/j.envint.2018.04.027] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND Managing and recycling electronic waste (e-waste), while useful and necessary, has resulted in significant contamination of several environments in China. The area around Tianjin, China has become one of the world's largest e-waste disposal centers, where electronics are processed by manually disassembly or burning, which can result in serious exposure of workers to a multitude of toxicants. OBJECTIVE The present study assessed potential genomic damage in workers involved in recycling e-waste. METHODS To detect cytogenetic and DNA damage, chromosomal aberrations (CA), cytokinesis blocking micronucleus (CBMN) and the comet assay were performed. Concentrations of some trace elements, markers of oxidative stress and polychlorinated biphenyls (PCBs) in whole blood or serum were measured, and relationships among the markers described above, age, and duration of exposure were analyzed. The profiles of expression of genes in lymphocytes in peripheral blood were assessed to determine the status of the regulation of genes involved in genome stability. RESULTS Concentrations of 28 PCB congeners in the whole blood of the exposed group were significantly (P<0.001) greater than those in the control individuals. Frequency of CA (8.01%) and CBMN (26.3‰) in lymphocytes and the level of DNA damage in the lymphocytes and spermatozoa of the exposed men were also significantly (P<0.0001) greater than those of the controls. There were significant relationships between CA, CBMN, DNA damage and duration of exposure. Concentrations of malondialdehyde (MDA) and lead (Pb) in the blood serum were significantly greater, but activities of superoxide dismutase (SOD), glutathione (GSH) and concentrations of calcium (Ca) and magnesium (Mg) were lower in the serum of the exposed men. MDA, Pb, Ca and Mg were associated with the duration of exposure to handling e-waste. In males involved in handling of e-waste, there were 13 genes - ATM, ATR, ABL1, CHEK1, CHEK2, GADD45A, CDK7, GTSE1, OGG1, DDB1, PRKDC, XRCC1 and CCNH - for which expression of mRNA was up-regulated and 7 genes - BRCA1, GTF2H1, SEMA4A, MRE11A, MUTYH, PNKP and RAD50 - for which the expression of mRNA was down-regulated. CONCLUSIONS A strong correlation between indicators of damage of DNA, which could result in instability of the genome, and duration of processing e-waste was observed. If proper procedures are not followed, there are significant risks to the health of the individuals involved in such activities.
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Affiliation(s)
- Yan Wang
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Xiaohui Sun
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Lianying Fang
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Keqiu Li
- Department of Biology at Tianjin Medical University, Tianjin, China
| | - Ping Yang
- Tianjin Institute of Medical and Pharmaceutical Science, Tianjin, China
| | - Liqing Du
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Kaihua Ji
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Jinhan Wang
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China
| | - Qiang Liu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China.
| | - Chang Xu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Molecular Nuclear Medicine, Tianjin, China.
| | - Guang Li
- Department of Biology at Tianjin Medical University, Tianjin, China.
| | - John P Giesy
- Department of Biomedical Sciences and Toxicology Centre, University of Saskatchewan, Saskatoon, Canada; Department of Zoology, and Center for Integrative Toxicology, Michigan State University, East Lansing, MI, USA; School of Biological Sciences, University of Hong Kong, Hong Kong, China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China
| | - Markus Hecker
- School of the Environment & Sustainability and Toxicology Centre, University of Saskatchewan, Saskatoon, Canada
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9
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Avalos-Durán G, Cañedo-Del Ángel AME, Rivero-Murillo J, Zambrano-Guerrero JE, Carballo-Mondragón E, Checa-Vizcaíno MÁ. Physiological ICSI (PICSI) vs. Conventional ICSI in Couples with Male Factor: A Systematic Review. JBRA Assist Reprod 2018; 22:139-147. [PMID: 29672006 PMCID: PMC5982561 DOI: 10.5935/1518-0557.20180027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES To determine the efficacy of the physiological ICSI technique (PICSI) vs. conventional ICSI in the prognosis of couples, with respect to the following outcome measures: live births, clinical pregnancy, implantation, embryo quality, fertilization and miscarriage rates. METHODS A systematic review of the literature, extracting raw data and performing data analysis. Patient(s): Couples with the male factor, who were subjected to in-vitro fertilization. Main Outcome Measures: rates of live births, clinical pregnancy, implantation, embryo quality, fertilization and miscarriage. RESULTS In the systematic search, we found 2,918 studies and an additional study from other sources; only two studies fulfilled the inclusion criteria for this systematic review. The rates of live births, clinical pregnancy, implantation, embryo quality, fertilization and miscarriage were similar for both groups. CONCLUSION There is no statistically significant difference between PICSI vs. ICSI, for any of the outcomes analyzed in this study. Enough information is still not available to prove the efficacy of the PICSI technique over ICSI in couples with male factor.
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Affiliation(s)
- Georgina Avalos-Durán
- Laboratorio de Fertilización In-Vitro, Clínica de infertilidad y Reproducción Asistida de Toluca, IN-FIV, Metepec, Estado de México, México
| | | | - Juana Rivero-Murillo
- Departamento de Medicina Reproductiva, URH, Unidad de Reproducción Humana, Quito, Ecuador
| | | | - Esperanza Carballo-Mondragón
- Laboratorio de Fertilización In-Vitro, Centro Mexicano de Fertilidad Dr. Alberto Kably, Estado de México, México
| | - Miguel Ángel Checa-Vizcaíno
- Departamento de Ginecología y Obstetricia, Hospital del Mar, Hospital Universitario del Mar, Universidad Autónoma de Barcelona, Barcelona, España
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10
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Zedan H, Ismail S, Gomaa A, Saleh R, Henkel R, Agarwal A. Evaluation of reference values of standard semen parameters in fertile Egyptian men. Andrologia 2018; 50:e12942. [PMID: 29336040 DOI: 10.1111/and.12942] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2017] [Indexed: 11/28/2022] Open
Abstract
The reference values of human semen, published in the WHO's latest edition in 2010, were lower than those previously reported. The objective of this study was to evaluate reference values of standard semen parameters in fertile Egyptian men. This cross-sectional study included 240 fertile men. Men were considered fertile when their wives had recent spontaneous pregnancies with time to pregnancy (TTP) ≤12 months. The mean age of fertile men was 33.8 ± 0.5 years (range 20-55 years). The 5th percentiles (95% confidence interval) of macroscopic semen parameters were 1.5 ml for volume and 7.2 for pH. The 5th percentiles of microscopic parameters were 15 million/ml for sperm concentration, 30 million per ejaculate for total sperm count, 50% for total motility, 40% for progressive motility, 62% for vitality, 4% for normal sperm forms and 0.1 million/ml for seminal leucocyte counts. In conclusion, fertile Egyptian men had higher reference values of sperm total motility, progressive motility and vitality, and lower reference values for total sperm counts as compared to those determined by the latest edition of the WHO laboratory manual in 2010. Other semen parameters were identical to those defined by the WHO 2010 manual.
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Affiliation(s)
- H Zedan
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Assiut University, Assuit, Egypt
| | - S Ismail
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Assiut University, Assuit, Egypt
| | - A Gomaa
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Assiut University, Assuit, Egypt
| | - R Saleh
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - R Henkel
- Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
| | - A Agarwal
- Department of Urology, American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
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11
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Babigumira JB, Sharara FI, Garrison LP. Projecting the potential impact of the Cap-Score™ on clinical pregnancy, live births, and medical costs in couples with unexplained infertility. J Assist Reprod Genet 2018; 35:99-106. [PMID: 28942518 PMCID: PMC5758457 DOI: 10.1007/s10815-017-1021-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 08/11/2017] [Indexed: 12/01/2022] Open
Abstract
PURPOSE The Cap-Score™ was developed to assess the capacitation status of men, thereby enabling personalized management of unexplained infertility by choosing timed intrauterine insemination (IUI), versus immediate in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) in individuals with a low Cap-Score™. The objective of this study was to estimate the differences in outcomes and costs comparing the use of the Cap-Score™ with timed IUI (CS-TI) and the standard of care (SOC), which was assumed to be three IUI cycles followed by three IVF-ICSI cycles. METHODS We developed and parameterized a decision-analytic model of management of unexplained infertility for women based on data from the published literature. We calculated the clinical pregnancy rates, live birth rates, and medical costs comparing CS-TI and SOC. We used Monte Carlo simulation to quantify uncertainty in projected estimates and performed univariate sensitivity analysis. RESULTS Compared to SOC, CS-TI was projected to increase the pregnancy rate by 1-26%, marginally reduce live birth rates by 1-3% in couples with women below 40 years, increase live birth rates by 3-7% in couples with women over 40 years, reduce mean medical costs by $4000-$19,200, reduce IUI costs by $600-$1370, and reduce IVF costs by $3400-$17,800, depending on the woman's age. CONCLUSION The Cap-Score™ is a potentially valuable clinical tool for management of unexplained infertility because it is projected to improve clinical pregnancy rates, save money, and, depending on the price of the test, increase access to treatment for infertility.
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Affiliation(s)
- Joseph B Babigumira
- Global Medicines Program, Department of Global Health, University of Washington, 1510 San Juan Road, Box 357965, Seattle, WA, 98092, USA.
- Pharmaceutical Outcomes Research and Policy Program, Department of Pharmacy, University of Washington, Seattle, WA, USA.
| | - Fady I Sharara
- Virginia Center for Reproductive Medicine, Reston, VA, USA
- Department of Obstetrics and Gynecology, George Washington University, Washington, DC, USA
| | - Louis P Garrison
- Global Medicines Program, Department of Global Health, University of Washington, 1510 San Juan Road, Box 357965, Seattle, WA, 98092, USA
- Pharmaceutical Outcomes Research and Policy Program, Department of Pharmacy, University of Washington, Seattle, WA, USA
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12
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Alshahrani S, Aldossari K, Al-Zahrani J, Gabr AH, Henkel R, Ahmad G. Interpretation of semen analysis using WHO 1999 and WHO 2010 reference values: Abnormal becoming normal. Andrologia 2017; 50. [DOI: 10.1111/and.12838] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2017] [Indexed: 01/21/2023] Open
Affiliation(s)
- S. Alshahrani
- College of Medicine; Prince Sattam Bin Abdulaziz University; Al Kharj Saudi Arabia
| | - K. Aldossari
- College of Medicine; Prince Sattam Bin Abdulaziz University; Al Kharj Saudi Arabia
| | - J. Al-Zahrani
- College of Medicine; Prince Sattam Bin Abdulaziz University; Al Kharj Saudi Arabia
| | - A. H. Gabr
- College of Medicine; Prince Sattam Bin Abdulaziz University; Al Kharj Saudi Arabia
- Faculty of Medicine; Minia University; Minya Egypt
| | - R. Henkel
- Department of Medical Bioscience; University of the Western Cape; Bellville South Africa
| | - G. Ahmad
- College of Medicine; Prince Sattam Bin Abdulaziz University; Al Kharj Saudi Arabia
- Department of Physiology; University of Health Sciences; Lahore Pakistan
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13
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Rao M, Meng TQ, Hu SH, Guan HT, Wei QY, Xia W, Zhu CH, Xiong CL. Evaluation of semen quality in 1808 university students, from Wuhan, Central China. Asian J Androl 2016; 17:111-6. [PMID: 25337834 PMCID: PMC4291853 DOI: 10.4103/1008-682x.135984] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to evaluate the semen quality of university students in Wuhan, the largest city in the world in terms of the number of university students. All student sperm donors recorded in the Hubei Province Human Sperm Bank from 1 March 2010 to 31 December 2013 were screened. At last, a total of 3616 semen samples from 1808 university student sperm donors were eligible and retrospectively analyzed. Each donor's semen parameters were averaged over two samples and compared with the World Health Organization criteria, and a generalized linear regression model was used to examine several determinants of semen quality. We found that the mean and median values were 3.0 ml and 2.8 ml for semen volume, 50.2 × 106 ml−1 and 50.0 × 106 ml−1 for sperm concentration, 148.1 × 106 and 142.1 × 106 for total sperm count, and 58.6% and 60.0% for total sperm motility. About 85.0% of donors had parameters that were all normal. Season and duration of abstinence were critical factors affecting semen quality. We also found a decrease in sperm concentration during the 4 years observation; however, this may not be a strong evidence to confirm the declining trend of semen quality. In conclusion, semen quality of university students in Wuhan was not optimal and should be paid high attention, long-term observation and further study should be carried out to confirm the present situation.
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Affiliation(s)
| | | | | | | | | | - Wei Xia
- Family Planning Research Institute; Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science and Technology; Hubei Province Human Sperm Bank, Wuhan, Hubei 430030, China
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14
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Abstinence Time and Its Impact on Basic and Advanced Semen Parameters. Urology 2016; 94:102-10. [PMID: 27196032 DOI: 10.1016/j.urology.2016.03.059] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 02/08/2016] [Accepted: 03/06/2016] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To assess the effect of ejaculatory abstinence (EA) periods on routine and advanced sperm tests. METHODS Men with normozoospermia provided semen samples after 1, 2, 5, 7, 9, and 11 days of abstinence. A standard semen analysis was performed on all samples. Each specimen was assessed for levels of reactive oxygen species (ROS) and sperm DNA fragmentation. Comparison was also made by grouping EA periods into short (1 day), recommended by World Health Organization (WHO) (2-7 days), and long (9-11 days). RESULTS Semen volume (P < .001), sperm concentration (P < .001), and total sperm count (P < .001) increased significantly with abstinence length. Sperm DNA fragmentation was associated with the length of EA (P < .001). Both 1 and 2 days of EA had the least amount of DNA fragmentation (P < .001). Significant increase was seen in volume, pH, viscosity, total count, total motile sperm, and DNA fragmentation between short and recommended EA (P < .05), and between recommended and long EA (P < .05). Short EA had no detrimental impact on semen characteristics according to the 2010 WHO thresholds. CONCLUSION Shortening of EA time is not detrimental to sperm quality in men with normozoospermia and is proposed as a method for reducing sperm DNA fragmentation. This strategy could help optimize sperm quality and the chances of natural and assisted conception. Accurate abstinence time should be considered when managing men with infertility problems with semen analyses even when it is within the recommended range.
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15
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Chen XM, Chen SM, Yue HX, Lin L, Wu YB, Liu B, Jiang M, Ma YX. Semen quality in adult male survivors 5 years after the 2008 Wenchuan earthquake. Andrologia 2016; 48:1274-1280. [PMID: 27135420 DOI: 10.1111/and.12573] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/03/2016] [Indexed: 11/30/2022] Open
Abstract
The influence of the Wenchuan earthquake on semen quality of adult male survivors is unclear. We investigated the semen quality included 673 male survivors from the worse-affected counties in the earthquake between Aug 2008 and July 2013. Semen parameters including pH, volume, concentration, motility and morphology were measured according to the World Health Organization (WHO) criteria. Kruskal-Wallis analysis of variance was used to examine the statistical differences between years, and a logistic regression was used to analyse the impacts caused by earthquake on the changes of semen quality. We found the medians (5th and 95th) were 2.5 ml (0.6-5.5) for semen volume, 59.0 × 106 ml-1 [(13.0-133.0)] × 106 ml-1 for semen concentration, 46% (13-64%) for sperm progressive motility and 3.0% (0-17.5%) for normal morphology for adult male survivors. Semen concentration, the percentage of sperm progressive motility, total motility and sperm normal morphology were all decreased in the first 3 years, and the differences among years 1, 2 and 3 were significant except the percentage of sperm progressive motility (P < 0.05). The casualties and heavy housing damage caused by earthquake had a negative effect on semen quality. The main findings will provide further diagnosis and therapy basis of male fertility by data, for affected populations in the earthquake.
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Affiliation(s)
- X M Chen
- Department of medical Genetics, West China School of Medicine, Sichuan University, Chengdu, Sichuan, China.,Department of Laboratory Medicine, Sichuan Provincial Hospital for Women and Children, Chengdu, Sichuan, China
| | - S M Chen
- Department of medical Genetics, West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - H X Yue
- Human sperm bank, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
| | - L Lin
- Human sperm bank, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Y B Wu
- Human sperm bank, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
| | - B Liu
- Human sperm bank, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
| | - M Jiang
- Human sperm bank, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Y X Ma
- Department of medical Genetics, West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
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16
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Zhu QX, Gao ES, Pathak N, Wu JQ, Zhou WJ. Single or double semen samples: the dilemma in epidemiological studies on semen quality. Hum Reprod 2016; 31:511-7. [DOI: 10.1093/humrep/dev326] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 12/01/2015] [Indexed: 11/13/2022] Open
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17
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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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18
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Kolesnikova LI, Kolesnikov SI, Kurashova NA, Osadchuk LV, Osadchuk AV, Dolgikh MI, Dashiev BG, Shantanova LN. Reproductive Health and Peculiarities of Lipid Peroxidation-Antioxidant Defense System in Men of the Main Ethnic Groups of the Baikal Region. Bull Exp Biol Med 2015; 160:32-4. [PMID: 26601842 DOI: 10.1007/s10517-015-3091-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Indexed: 10/22/2022]
Abstract
Quality of sperm and some parameters of LPO reflecting primary and end stages of oxidation and levels of α-tocopherol and total antioxidant activity were studied in ejaculate samples from 130 men (mean age of 24 years) living in Ulan-Ude, Buryatia Republic. All participants took a part in survey and were examined by an andrologist. The observed peculiarities of LPO and antioxidant defense in Russian men, such as decreased level of substrate supply for the processes of LPO and α-tocopherol, attest to specificity of metabolic processes and development of compensatory reactions of the organism under physiological conditions. LPO processes were more active in Buryat men, which can indicate exposure of cell membranes to toxic oxygen species. However, the observed in these patients significant increase in α-tocopherol concentration reflects adequate functioning of the adaptive and protective mechanisms of the body.
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Affiliation(s)
- L I Kolesnikova
- Research Center of Family Health and Reproduction, Irkutsk, Russia
| | - S I Kolesnikov
- Research Center of Family Health and Reproduction, Irkutsk, Russia
| | - N A Kurashova
- Research Center of Family Health and Reproduction, Irkutsk, Russia.
| | - L V Osadchuk
- Institute of Cytology and Genetic, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia
| | - A V Osadchuk
- Institute of Cytology and Genetic, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia
| | - M I Dolgikh
- Institute of Cytology and Genetic, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia
| | - B G Dashiev
- Republican Perinatal Center, Uzbekistan, Russia
| | - L N Shantanova
- Institute of General and Experimental Biology, Siberian Division of the Russian Academy of Sciences, Ulan-Ude, Republic of Buryatia, Russia
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19
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Johnson SL, Dunleavy J, Gemmell NJ, Nakagawa S. Consistent age-dependent declines in human semen quality: a systematic review and meta-analysis. Ageing Res Rev 2015; 19:22-33. [PMID: 25462195 DOI: 10.1016/j.arr.2014.10.007] [Citation(s) in RCA: 214] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 10/24/2014] [Accepted: 10/27/2014] [Indexed: 12/12/2022]
Abstract
Reduced fertility typically occurs among women in their late 30s, but increasing evidence indicates that advanced paternal age is associated with changes in reproduction as well. Numerous studies have investigated age-based declines in semen traits, but the impact of paternal age on semen parameter values remains inconclusive. Using data from 90 studies (93,839 subjects), we conducted a systematic review and meta-analysis to quantify the effect of male age on seven ejaculate traits (semen volume, sperm concentration, total sperm count, morphology, total motility, progressive motility and DNA fragmentation). Age-associated declines in semen volume, percentage motility, progressive motility, normal morphology and unfragmented cells were statistically significant and results generally seemed to be robust against confounding factors. Unexpectedly, sperm concentration did not decline with increasing male age, even though we found that sperm concentration declined over time. Our findings indicate that male age needs more recognition as a potential contributor to the negative pregnancy outcomes and reduced offspring health associated with delayed first reproduction. We suggest that greater focus on collection of DNA fragmentation and progressive motility in a clinical setting may lead to better patient outcomes during fertility treatments of aging couples.
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Affiliation(s)
- Sheri L Johnson
- Department of Anatomy, University of Otago, Dunedin 9054, New Zealand; Department of Zoology, University of Otago, Dunedin 9054, New Zealand; Allan Wilson Centre, University of Otago, Dunedin 9054, New Zealand.
| | - Jessica Dunleavy
- Department of Anatomy, University of Otago, Dunedin 9054, New Zealand
| | - Neil J Gemmell
- Department of Anatomy, University of Otago, Dunedin 9054, New Zealand; Allan Wilson Centre, University of Otago, Dunedin 9054, New Zealand; Gravida: National Centre for Growth and Development, University of Otago, Dunedin 9054, New Zealand
| | - Shinichi Nakagawa
- Department of Zoology, University of Otago, Dunedin 9054, New Zealand; Gravida: National Centre for Growth and Development, University of Otago, Dunedin 9054, New Zealand
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20
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Alshahrani S, Agarwal A, Assidi M, Abuzenadah AM, Durairajanayagam D, Ayaz A, Sharma R, Sabanegh E. Infertile men older than 40 years are at higher risk of sperm DNA damage. Reprod Biol Endocrinol 2014; 12:103. [PMID: 25410314 PMCID: PMC4258051 DOI: 10.1186/1477-7827-12-103] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 11/05/2014] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND The effect of paternal age on semen quality is controversial. In this retrospective study, the aim was to investigate the effects of advancing age on sperm parameters including reactive oxygen species (ROS), total antioxidant capacity (TAC) and sperm DNA damage in infertile men. We also examined whether paternal age >40 y is associated with higher risk of sperm DNA damage. METHODS A total of 472 infertile men presenting for infertility were divided into 4 age groups: group A: patients ≤ 30 y; group B: patients 31- 40 y, group C: ≤ 40 y and group D: patients >40 y. The following tests were performed - semen analysis according to WHO 2010 criteria, seminal ROS by chemiluminescence, TAC by colorimetric assay and sperm DNA damage by TUNEL assay - and the results were compared amongst the 4 age groups. RESULTS There was no statistical difference in conventional semen parameters, TAC and ROS with advancing paternal age as well as between different age groups. However, a significant negative association was noted between sperm DNA damage and advancing paternal age. Men >40 y showed higher levels of sperm DNA damage (24.4 ± 18.5%) compared to younger men (<30 y; 16.7 ± 11.2%; p <0.05). CONCLUSIONS Infertile men over the age of 40 y have a greater percentage of sperm DNA fragmentation compared to infertile men aged 40 y and below. Advanced paternal age (>40 y) may increase the risk of sperm DNA damage in infertile men.
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Affiliation(s)
- Saad Alshahrani
- Glickman Urological and Kidney Institute, Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH USA
- College of Medicine, Salman Bin Abdulaziz University, Alkharj, Saudi Arabia
| | - Ashok Agarwal
- Glickman Urological and Kidney Institute, Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH USA
| | - Mourad Assidi
- College of Medicine, Salman Bin Abdulaziz University, Jeddah, Saudi Arabia
- Center of Excellence in Genomic Medicine Research, King AbdulAziz University, Jeddah, Saudi Arabia
- KACST Technology Innovation Center in Personalized Medicine at King AbdulAziz University, Jeddah, Saudi Arabia
| | - Adel M Abuzenadah
- College of Medicine, Salman Bin Abdulaziz University, Jeddah, Saudi Arabia
- Center of Excellence in Genomic Medicine Research, King AbdulAziz University, Jeddah, Saudi Arabia
- KACST Technology Innovation Center in Personalized Medicine at King AbdulAziz University, Jeddah, Saudi Arabia
| | - Damayanthi Durairajanayagam
- Glickman Urological and Kidney Institute, Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH USA
- MARA University of Technology, Selangor Darul Ehsan, Malaysia
| | - Ahmet Ayaz
- Glickman Urological and Kidney Institute, Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH USA
| | - Rakesh Sharma
- Glickman Urological and Kidney Institute, Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH USA
| | - Edmund Sabanegh
- Glickman Urological and Kidney Institute, Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH USA
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21
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Schrader SM, Marlow KL. Assessing the reproductive health of men with occupational exposures. Asian J Androl 2014; 16:23-30. [PMID: 24369130 PMCID: PMC3901877 DOI: 10.4103/1008-682x.122352] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 08/24/2013] [Accepted: 08/28/2013] [Indexed: 12/16/2022] Open
Abstract
The earliest report linking environmental (occupational) exposure to adverse human male reproductive effects dates back to1775 when an English physician, Percival Pott, reported a high incidence of scrotal cancer in chimney sweeps. This observation led to safety regulations in the form of bathing requirements for these workers. The fact that male-mediated reproductive harm in humans may be a result of toxicant exposures did not become firmly established until relatively recently, when Lancranjan studied lead-exposed workers in Romania in 1975, and later in 1977, when Whorton examined the effects of dibromochloropropane (DBCP) on male workers in California. Since these discoveries, several additional human reproductive toxicants have been identified through the convergence of laboratory and observational findings. Many research gaps remain, as the pool of potential human exposures with undetermined effects on male reproduction is vast. This review provides an overview of methods used to study the effects of exposures on male reproduction and their reproductive health, with a primary emphasis on the implementation and interpretation of human studies. Emphasis will be on occupational exposures, although much of the information is also useful in assessing environmental studies, occupational exposures are usually much higher and better defined.
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Affiliation(s)
- Steven M Schrader
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Applied Research and Technology, Cincinnati, OH, USA
| | - Katherine L Marlow
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Applied Research and Technology, Cincinnati, OH, USA
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22
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Jiang M, Chen X, Yue H, Xu W, Lin L, Wu Y, Liu B. Semen quality evaluation in a cohort of 28213 adult males from Sichuan area of south-west China. Andrologia 2013; 46:842-7. [PMID: 24079334 DOI: 10.1111/and.12168] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/30/2013] [Indexed: 02/05/2023] Open
Affiliation(s)
- M. Jiang
- Human sperm bank; West China Second University Hospital of Sichuan University; Chengdu Sichuan China
| | - X. Chen
- Department of Medical Genetics; West China Hospital of Sichuan University; Chengdu Sichuan China
- Department of Laboratory Medicine; Sichuan Provincial Hospital for Women and Children; Chengdu Sichuan China
| | - H. Yue
- Human sperm bank; West China Second University Hospital of Sichuan University; Chengdu Sichuan China
| | - W. Xu
- Sichuan University - The Chinese University of Hong Kong Joint Laboratory for Reproductive Medicine; Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education; West China Second University Hospital of Sichuan University; Chengdu Sichuan China
| | - L. Lin
- Human sperm bank; West China Second University Hospital of Sichuan University; Chengdu Sichuan China
| | - Y. Wu
- Human sperm bank; West China Second University Hospital of Sichuan University; Chengdu Sichuan China
| | - B. Liu
- Human sperm bank; West China Second University Hospital of Sichuan University; Chengdu Sichuan China
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23
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Pastuszak AW, Lamb DJ. Counting your sperm before they fertilize: are sperm counts really declining? Asian J Androl 2013; 15:179-83. [PMID: 23334199 DOI: 10.1038/aja.2012.105] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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24
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Iwamoto T, Nozawa S, Mieno MN, Yamakawa K, Baba K, Yoshiike M, Namiki M, Koh E, Kanaya J, Okuyama A, Matsumiya K, Tsujimura A, Kanetake H, Eguchi J, Skakkebaek NE, Vierula M, Toppari J, Jørgensen N. Semen quality of 1559 young men from four cities in Japan: a cross-sectional population-based study. BMJ Open 2013; 3:bmjopen-2012-002222. [PMID: 23633418 PMCID: PMC3641477 DOI: 10.1136/bmjopen-2012-002222] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES To provide information of semen quality among normal young Japanese men and indicate the frequency of reduced semen quality. DESIGN Cross-sectional, coordinated studies of Japanese young men included from university areas. The men had to be 18-24 years, and both the man and his mother had to be born in Japan. Background information was obtained from questionnaires. Standardised and quality-controlled semen analyses were performed, reproductive hormones analysed centrally and results adjusted for confounding factors. SETTING Four study centres in Japan (Kawasaki, Osaka, Kanazawa and Nagasaki). PARTICIPANTS 1559 men, median age 21.1 years, included during 1999-2003. OUTCOME MEASURES Semen volume, sperm concentration, total sperm count, sperm motility, sperm morphology and reproductive hormone levels. RESULTS Median sperm concentration was 59 (95% CI 52 to 68) million/ml, and 9% and 31.9% had less than 15 and 40 million/ml, respectively. Median percentage of morphologically normal spermatozoa was 9.6 (8.8 to 10.3)%. Small, but statistically significant, differences were detected for both semen and reproductive hormone variables between men from the four cities. Overall, the semen values were lower than those of a reference population of 792 fertile Japanese men. CONCLUSIONS Assuming that the investigated men were representative for young Japanese men, a significant proportion of the population had suboptimal semen quality with reduced fertility potential, and as a group they had lower semen quality than fertile men. However, the definitive role-if any-of low semen quality for subfertility and low fertility rates remain to be investigated.
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Affiliation(s)
- Teruaki Iwamoto
- Division of Male Infertility, Centre for Infertility and IVF, International University of Health and WelfareHospital, Nasushiobara, Japan
- Department of Urology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Shiari Nozawa
- Department of Urology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Makiko Naka Mieno
- Department of Medical Informatics, Centre for Information, Jichi Medical University, Shimotsuke, Japan
| | - Katsunori Yamakawa
- Department of Urology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Katsuyuki Baba
- Department of Urology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Miki Yoshiike
- Department of Urology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Mikio Namiki
- Department of Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Eitetsu Koh
- Department of Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Jiro Kanaya
- Department of Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Akihiko Okuyama
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kiyomi Matsumiya
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Akira Tsujimura
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | | | - Jiro Eguchi
- Department of Urology, Nagasaki University, Nagasaki, Japan
| | - Niels E Skakkebaek
- University Department of Growth and Reproduction, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Matti Vierula
- Departments of Physiology and Paediatrics, University of Turku, Turku, Finland
| | - Jorma Toppari
- Departments of Physiology and Paediatrics, University of Turku, Turku, Finland
| | - Niels Jørgensen
- University Department of Growth and Reproduction, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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25
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Sermondade N, Faure C, Fezeu L, Shayeb AG, Bonde JP, Jensen TK, Van Wely M, Cao J, Martini AC, Eskandar M, Chavarro JE, Koloszar S, Twigt JM, Ramlau-Hansen CH, Borges E, Lotti F, Steegers-Theunissen RPM, Zorn B, Polotsky AJ, La Vignera S, Eskenazi B, Tremellen K, Magnusdottir EV, Fejes I, Hercberg S, Lévy R, Czernichow S. BMI in relation to sperm count: an updated systematic review and collaborative meta-analysis. Hum Reprod Update 2012; 19:221-31. [PMID: 23242914 DOI: 10.1093/humupd/dms050] [Citation(s) in RCA: 380] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The global obesity epidemic has paralleled a decrease in semen quality. Yet, the association between obesity and sperm parameters remains controversial. The purpose of this report was to update the evidence on the association between BMI and sperm count through a systematic review with meta-analysis. METHODS A systematic review of available literature (with no language restriction) was performed to investigate the impact of BMI on sperm count. Relevant studies published until June 2012 were identified from a Pubmed and EMBASE search. We also included unpublished data (n = 717 men) obtained from the Infertility Center of Bondy, France. Abstracts of relevant articles were examined and studies that could be included in this review were retrieved. Authors of relevant studies for the meta-analysis were contacted by email and asked to provide standardized data. RESULTS A total of 21 studies were included in the meta-analysis, resulting in a sample of 13 077 men from the general population and attending fertility clinics. Data were stratified according to the total sperm count as normozoospermia, oligozoospermia and azoospermia. Standardized weighted mean differences in sperm concentration did not differ significantly across BMI categories. There was a J-shaped relationship between BMI categories and risk of oligozoospermia or azoospermia. Compared with men of normal weight, the odds ratio (95% confidence interval) for oligozoospermia or azoospermia was 1.15 (0.93-1.43) for underweight, 1.11 (1.01-1.21) for overweight, 1.28 (1.06-1.55) for obese and 2.04 (1.59-2.62) for morbidly obese men. CONCLUSIONS Overweight and obesity were associated with an increased prevalence of azoospermia or oligozoospermia. The main limitation of this report is that studied populations varied, with men recruited from both the general population and infertile couples. Whether weight normalization could improve sperm parameters should be evaluated further.
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Affiliation(s)
- N Sermondade
- Service d'Histologie-Embryologie-Cytogénétique-CECOS, Hôpital Jean Verdier (AP-HP), Bondy, France
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26
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Sanchez-Pozo MC, Mendiola J, Serrano M, Mozas J, Bjorndahl L, Menkveld R, Lewis SEM, Mortimer D, Jorgensen N, Barratt CLR, Fernandez MF, Castilla JA. Proposal of guidelines for the appraisal of SEMen QUAlity studies (SEMQUA). Hum Reprod 2012; 28:10-21. [DOI: 10.1093/humrep/des355] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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27
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Delayed paternal age of reproduction in humans is associated with longer telomeres across two generations of descendants. Proc Natl Acad Sci U S A 2012; 109:10251-6. [PMID: 22689985 DOI: 10.1073/pnas.1202092109] [Citation(s) in RCA: 136] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Telomeres are repeating DNA sequences at the ends of chromosomes that protect and buffer genes from nucleotide loss as cells divide. Telomere length (TL) shortens with age in most proliferating tissues, limiting cell division and thereby contributing to senescence. However, TL increases with age in sperm, and, correspondingly, offspring of older fathers inherit longer telomeres. Using data and samples from a longitudinal study from the Philippines, we first replicate the finding that paternal age at birth is associated with longer TL in offspring (n = 2,023, P = 1.84 × 10(-6)). We then show that this association of paternal age with offspring TL is cumulative across multiple generations: in this sample, grandchildren of older paternal grandfathers at the birth of fathers have longer telomeres (n = 234, P = 0.038), independent of, and additive to, the association of their father's age at birth with TL. The lengthening of telomeres predicted by each year that the father's or grandfather's reproduction are delayed is equal to the yearly shortening of TL seen in middle-age to elderly women in this sample, pointing to potentially important impacts on health and the pace of senescent decline in tissues and systems that are cell-replication dependent. This finding suggests a mechanism by which humans could extend late-life function as average age at reproduction is delayed within a lineage.
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Pei Y, Wu Y, Qin Y. Effects of chronic heat stress on the expressions of heat shock proteins 60, 70, 90, A2, and HSC70 in the rabbit testis. Cell Stress Chaperones 2012; 17:81-7. [PMID: 21830018 PMCID: PMC3227842 DOI: 10.1007/s12192-011-0287-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 07/25/2011] [Accepted: 07/28/2011] [Indexed: 11/25/2022] Open
Abstract
Few studies have focused on the expression of heat shock proteins (HSPs) after chronic heat stress. The objective of this study was to investigate the effect of chronic high temperature-humidity index treatment on the expressions of HSP60, HSP70, HSP90, HSPA2 and HSC70, in the Rex rabbit testis and the expressions of these proteins after recovery from the chronic heat shock. Thirty mature male rabbits of the same age were randomly divided into three groups: control, heat stress, and recovery. The western blot results showed that the expressional levels of HSP60, HSP90, and HSC70 increased significantly and HSPA2 was elevated slightly after a 9-week heat treatment. HSP70 was absent in the control testis and had a high level of expression after heat stress. All of these proteins partially reverted back to normal levels after a 9-week recovery. The immunohistochemical results indicated that the expression patterns of HSP60, HSP90, HSPA2, and HSC70 did not change.
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Affiliation(s)
- Yangli Pei
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Yingjie Wu
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193 People’s Republic of China
| | - Yinghe Qin
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193 People’s Republic of China
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29
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Franken DR, Oehninger S. Semen analysis and sperm function testing. Asian J Androl 2011; 14:6-13. [PMID: 22179512 DOI: 10.1038/aja.2011.58] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Despite controversy regarding the clinical value of semen analysis, male fertility investigation still relies on a standardized analysis of the semen parameters. This is especially true for infertility clinics in both developing and developed countries. Other optional tests or sophisticated technologies have not been widely applied. The current review addresses important changes in the analysis of semen as described in the new World Health Organization (WHO) manual for semen analysis. The most important change in the manual is the use of evidence-based publications as references to determine cutoff values for normality. Apart from the above mentioned changes, the initial evaluation and handling methods remain, in most instances, the same as in previous editions. Furthermore, the review evaluates the importance of quality control in andrology with emphasis on the evaluation of sperm morphology. WHO sperm morphology training programmes for Sub-Saharan countries were initiated at Tygerberg Hospital in 1995. The external quality control programme has ensured that the majority of participants have maintained their morphological reading skills acquired during initial training. This review reports on current sperm functional tests, such as the induced acrosome reaction, and sperm-zona pellucida binding assays, as well as the impact of sperm quality in terms of DNA integrity, and the relationship of sperm function tests to sperm morphology.
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Affiliation(s)
- Daniel R Franken
- Department of Obstetrics and Gynaecology, Tygerberg Hospita, Cape Town, South Africa.
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Zhu QX, Meads C, Lu ML, Wu JQ, Zhou WJ, Gao ES. Turning point of age for semen quality: a population-based study in Chinese men. Fertil Steril 2011; 96:572-6. [DOI: 10.1016/j.fertnstert.2011.06.058] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2011] [Revised: 06/03/2011] [Accepted: 06/22/2011] [Indexed: 10/18/2022]
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31
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Sk A, V J, G K, D U, P K. Declining semen quality among south Indian infertile men: A retrospective study. J Hum Reprod Sci 2011; 1:15-8. [PMID: 19562058 PMCID: PMC2700673 DOI: 10.4103/0974-1208.38972] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2007] [Revised: 01/05/2008] [Accepted: 01/07/2008] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND: Male reproductive function has recently attracted increasing attention due to reports on time-related decline in semen quality. Furthermore, regional differences in the semen quality have also been reported. AIM: To investigate the semen quality among large cohort of infertile individuals at a regional level, in terms of the sperm concentration, total sperm motility, sperm morphology and incidence of azoospermia over a period of 13 years. SETTING: University infertility clinic at Kasturba Hospital, Manipal which is a tertiary healthcare centre serving the general population. DESIGN: Retrospective analysis. MATERIALS AND METHODS: This includes a total of 7770 subjects who presented for semen analysis from 1993 to 2005. The data regarding ejaculate volume, sperm density, motility, morphology and the incidence of azoospermia were collected. STATISTICAL ANALYSIS USED: One way analysis of variance (ANOVA), regression analysis and Chi square analysis. RESULTS: The average sperm density among infertile men during 2004-2005 was 26.61 ± 0.71 millions/mL which was significantly lower than the average sperm density observed in 1993-1994 (38.18 ± 1.46 millions/mL). Similar trend was also observed for sperm motility (47.14% motile sperms vs. 61.16%) and normal sperm morphology (19.75% vs. 40.51%). Interestingly, the incidence of severe oligospermia (mean sperm density <10 millions/mL) observed in 2002-2005 and 1993-1997 demonstrated a significant inverse relationship (P < 0.001). CONCLUSION: Our study provides the first evidence that the quality of human semen evaluated for infertility is deteriorating in the southern part of the India over the years, probably due to environmental, nutritional, life style or socioeconomic causes.
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Affiliation(s)
- Adiga Sk
- Division of Reproductive Medicine, Kasturba Medical College, Manipal University, Manipal, India
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Semen quality analysis of military personnel from six geographical areas of the People’s Republic of China. Fertil Steril 2011; 95:2018-23, 2023.e1-3. [DOI: 10.1016/j.fertnstert.2011.02.052] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 02/16/2011] [Accepted: 02/24/2011] [Indexed: 11/16/2022]
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33
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Huang XF. Reference limits: limited references in laboratories worldwide. Asian J Androl 2010; 12:447-8. [PMID: 20436513 DOI: 10.1038/aja.2010.30] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Li Y, Lin H, Li Y, Cao J. Association between socio-psycho-behavioral factors and male semen quality: systematic review and meta-analyses. Fertil Steril 2010; 95:116-23. [PMID: 20674912 DOI: 10.1016/j.fertnstert.2010.06.031] [Citation(s) in RCA: 191] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Revised: 05/12/2010] [Accepted: 06/15/2010] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To identify the factors associated with male semen quality from many socio-psycho-behavioral factors. DESIGN Medline/PubMed, EMBASE, and CNKI were searched to identify relevant publications for systematic review and meta-analysis. PATIENT(S) None. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Thirteen socio-psycho-behavioral factors in 57 cross-sectional studies with 29,914 participants from 26 countries/regions were involved in this review. Six factors (age, body mass index [BMI], psychological stress, smoking, alcohol, and coffee consumption) were included in meta-analyses. RESULT(S) Smoking can deteriorate all of the sperm parameters of both fertile and infertile men, but it is not risk factor for semen volume in Switzerland and Iran and for sperm density in the United States, Denmark, and Brazil; higher age and alcohol consumption are risk factors for lower semen volume; and psychological stress can lower sperm density and sperm progressive motility and increase abnormal sperm. CONCLUSION(S) This review further suggested that higher age, smoking, alcohol consumption, and psychological stress were risk factors for semen quality. These results indicated that health programs focusing on lifestyle and psychological health would be helpful for male reproductive health. Well-designed studies are needed to further identify the role of more socio-psycho-behavioral factors in male semen quality.
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Affiliation(s)
- Ying Li
- Department of Social Medicine and Health Service Management, College of Preventive Medicine, Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Third Military Medical University, Chongqing, People's Republic of China
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Cooper TG, Noonan E, von Eckardstein S, Auger J, Baker HG, Behre HM, Haugen TB, Kruger T, Wang C, Mbizvo MT, Vogelsong KM. World Health Organization reference values for human semen characteristics*‡. Hum Reprod Update 2009; 16:231-45. [DOI: 10.1093/humupd/dmp048] [Citation(s) in RCA: 1747] [Impact Index Per Article: 116.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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36
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Li Y, Lin H, Ma M, Li L, Cai M, Zhou N, Han X, Bao H, Huang L, Zhu C, Li C, Yang H, Rao Z, Xiang Y, Cui Z, Ao L, Zhou Z, Xiong H, Cao J. Semen quality of 1346 healthy men, results from the Chongqing area of southwest China. Hum Reprod 2009; 24:459-69. [DOI: 10.1093/humrep/den399] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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37
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Abstract
After the controversial report by Carlsen et al. in 1992 showing a possible decline in human semen quality over the past 50 years, many laboratories investigated their own records of semen findings that had been kept for the past decades, and a significant decrease in sperm quality was reported from some laboratories, but not others. At the beginning of the 21st century, a definitive interpretation of this issue has not yet been offered; however, it seems plausible that there are large regional differences in semen quality. Decreases in semen quality have been reported from various regions around the world, and a concurrent rise in the incidence of other reproductive problems, such as testicular cancer and genital abnormalities, has been observed in many regions. However, most of the reports showing regional differences were from Western or Western-derived countries, despite the fact that Asia is the region with the highest population on earth. Recently we undertook a cross-sectional study on fertile men in Japan to describe the current status of semen quality of Japanese men. We took confounders into consideration to allow a comparison with a previous European study. Japanese fertile men proved to have a semen quality at the level of Danish men, who were reported to have the lowest level among the men examined in the European study. This low level of sperm concentration in fertile Japanese men may result from differences in lifestyle or other environmental factors, but we cannot rule out the possibility of ethnic differences caused by different genetic variation or combination. To address this issue we need more information on the reproductive function in Asian men, who have been reported to have certain differences in reproductive characteristics from Caucasian men. This article is an attempt to review our present knowledge concerning the current status of semen quality in healthy Asian men on the basis of the limited publications from Asia. (Reprod Med Biol 2007; 6: 185-193).
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Affiliation(s)
- Teruaki Iwamoto
- Department of Urology, St Marianna University School of Medicine, Kawasaki, and
- Center for Infertility and IVF, International University of Health and Welfare Hospital, Nasushiobara, Japan
| | - Shiari Nozawa
- Department of Urology, St Marianna University School of Medicine, Kawasaki, and
| | - Miki Yoshiike
- Department of Urology, St Marianna University School of Medicine, Kawasaki, and
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