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Peng T, Liao C, Ye X, Chen Z, Li X, Lan Y, Fu X, An G. Machine learning-based clustering to identify the combined effect of the DNA fragmentation index and conventional semen parameters on in vitro fertilization outcomes. Reprod Biol Endocrinol 2023; 21:26. [PMID: 36922829 PMCID: PMC10015711 DOI: 10.1186/s12958-023-01080-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023] Open
Abstract
BACKGROUND Previous studies have demonstrated an association between male sperm quality and assisted reproduction outcomes, focusing on the effects of individual parameters and reaching controversial conclusions. The WHO 6th edition manual highlights a new semen assay, the sperm DNA fragmentation index, for use after routine semen examination. However, the combined effect of the sperm DNA fragmentation index (DFI) and routine semen parameters remains largely unknown. METHODS We assessed the combined effect of the sperm DFI and conventional semen parameters on single fresh conventional IVF outcomes for infertile couples from January 1, 2017, to December 31, 2020. IVF outcomes were obtained from the cohort database follow-up records of the Clinical Reproductive Medicine Management System of the Third Affiliated Hospital of Guangzhou Medical University. An unsupervised K-means clustering method was applied to classify participants into several coexposure pattern groups. A multivariate logistic regression model was used for statistical analysis. RESULTS A total of 549 live births among 1258 couples occurred during the follow-up period. A linear exposure-response relationship was observed among the sperm DFI, sperm motility, and IVF outcomes. In multivariable adjustment, increased sperm DFI values and decreased sperm motility and semen concentration levels were associated with reduced odds of favourable IVF outcomes. Four coexposure patterns were generated based on the sperm DFI and the studied semen parameters, as follows: Cluster 1 (low sperm DFI values and high sperm motility and semen concentration levels), Cluster 2 (low sperm DFI values and moderate sperm motility and semen concentration levels), Cluster 3 (low sperm DFI values and low sperm motility and semen concentration levels) and Cluster 4 (high sperm DFI values and low sperm motility and semen concentration levels). Compared with those in Cluster 1, participants in Cluster 3 and Cluster 4 had lower odds of a live birth outcome, with odds ratios (95% confidence intervals [CIs]) of 0.733 (0.537, 0.998) and 0.620 (0.394, 0.967), respectively. CONCLUSIONS When combined with low sperm DFI values, there was no significant difference between high or moderate sperm concentration and motility levels, and both were associated with favourable IVF outcomes. Low sperm parameter levels, even when DFI values remain low, may still lead to poor IVF outcomes. Participants with high sperm DFI values and low sperm motility and semen concentration levels had the worst outcomes. Our findings offer a novel perspective for exploring the joint effects of sperm DFI and routine semen parameter values.
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Affiliation(s)
- Tianwen Peng
- Department of Obstetrics and Gynecology, Center of Reproductive Medicine, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong, China
| | - Chen Liao
- Department of Obstetrics and Gynecology, Center of Reproductive Medicine, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong, China
| | - Xin Ye
- Department of Obstetrics and Gynecology, Center of Reproductive Medicine, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong, China
| | - Zhicong Chen
- Department of Obstetrics and Gynecology, Center of Reproductive Medicine, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong, China
| | - Xiaomin Li
- Department of Obstetrics and Gynecology, Center of Reproductive Medicine, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong, China
| | - Yu Lan
- Department of Obstetrics and Gynecology, Center of Reproductive Medicine, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong, China
| | - Xin Fu
- Department of Obstetrics and Gynecology, Center of Reproductive Medicine, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong, China
| | - Geng An
- Department of Obstetrics and Gynecology, Center of Reproductive Medicine, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong, China.
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Dai X, Chen G, Zhang M, Mei K, Liu Y, Ding C, Chang Y, Wu Z, Huang H. Exposure to ambient particulate matter affects semen quality: A case study in Wenzhou, China. Andrology 2023; 11:444-455. [PMID: 36252264 DOI: 10.1111/andr.13326] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 10/03/2022] [Accepted: 10/10/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Particulate matter (PM), including PM2.5 (PM ≤ 2.5 µm in aerodynamic diameter) and PM10 (PM ≤ 10 µm in aerodynamic diameter), is a component of air pollutants, which is linked to semen quality. However, the available evidence of association needs to be strengthened, and some studies have conflicting results. OBJECTIVES To evaluate the potential impacts of PM on semen quality during the full (0-90 days before semen examination) and three key sperm development windows (0-9, 10-14, and 70-90 days before semen examination). METHODS We included 1494 infertile men in the main urban area in Wenzhou, China, who had undergone semen examinations for fertility between 2014 and 2019. The impacts were assessed by multivariable linear regression models. RESULTS Overall, during the full sperm development window, PM2.5 and PM10 exposures were associated with declined progressive sperm motility (%) (β: -0.6; 95% confidence intervals (CIs): -1.07, -0.13 and -0.46; -0.59, -0.33) and total sperm motility (%) (-1.95; -2.67, -1.23 and -1.32; -1.82, -0.82), and associated with increased sperm concentration (106 /ml) (0.02; 0.006, 0.023 and 0.007; 0.001, 0.013) and total sperm number (106 ) (0.02; 0.01, 0.03 and 0.011; 0.004, 0.017). Furthermore, only PM2.5 exposure during the 10-14 days window was significantly associated with declined progressive motility (%) (-0.207; -0.395, -0.023). CONCLUSIONS During the full sperm development window, PM exposure has an adverse impact on sperm motility and positive impacts on sperm concentration and total sperm number. The adverse impact was more severe in the 10-14 days window.
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Affiliation(s)
- Xuchao Dai
- School of Public Health and Management, Wenzhou Medical University, Wenzhou, China
| | - Gang Chen
- School of Public Health and Management, Wenzhou Medical University, Wenzhou, China
| | - Mengqi Zhang
- School of Public Health and Management, Wenzhou Medical University, Wenzhou, China
| | - Kun Mei
- School of Geography Science and Geomatics Engineering, Suzhou University of Science and Technology, Suzhou, China
| | - Yanlong Liu
- School of Mental Health, Wenzhou Medical University, Wenzhou, China
| | - Cheng Ding
- Department of Respiratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yanxiang Chang
- School of Public Health and Management, Wenzhou Medical University, Wenzhou, China
| | - Zhigang Wu
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Reproductive Health Research Center, Health Assessment Center of Wenzhou Medical University, Wenzhou, China
| | - Hong Huang
- Research Center for Healthy China, Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Watershed Sciences and Health, Wenzhou Medical University, Wenzhou, China
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Garcia-Grau E, Lleberia J, Costa L, Guitart M, Yeste M, Benet J, Amengual MJ, Ribas-Maynou J. Decline of Sperm Quality over the Last Two Decades in the South of Europe: A Retrospective Study in Infertile Patients. BIOLOGY 2022; 12:biology12010070. [PMID: 36671762 PMCID: PMC9856056 DOI: 10.3390/biology12010070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/26/2022] [Accepted: 12/28/2022] [Indexed: 01/04/2023]
Abstract
Semen quality has a direct relation to male fertility. Whether sperm variables in humans have decreased over the last years is still uncertain, with some studies showing a decline and others reporting no changes. In this regard, previous research has suggested that lifestyle and environmental conditions may contribute to this variability, calling for regional studies. The present work is a retrospective, unicentric study that includes semen samples analyzed between 1997 and 2017 at the Parc Taulí Hospital (Barcelona metropolitan area). First, a multivariate analysis including the age as a confounding factor showed a statistically significant decrease in semen volume, pH, progressive motility, morphology and total motile sperm over time. Contrarily, no significant variation in sperm count or concentration was observed. Mean reductions per year were -0.02 mL for volume, -0.57% for progressively motile sperm and -0.72% for sperm with normal morphology. Interestingly, the average annual temperature registered by the Spanish Meteorology Agency negatively correlated to sperm morphology and sperm count (Rs = -0.642; p = 0.002 and Rs = -0.435; p = 0.049, respectively). In conclusion, the present study based on infertile patients from the Barcelona area found a decline in sperm motility and morphology, without effects on sperm count. Changes in temperature appeared to be associated to this decline, but further studies are needed to address the mechanisms linked to the observed variations.
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Affiliation(s)
- Emma Garcia-Grau
- Departament of Obstetrics and Gynecology, Parc Taulí Health Corporation, ES-08208 Sabadell, Spain
- Unit of Obstetrics and Gynecology, Department of Pediatrics, Obstetrics and Gynecology, and Preventive Medicine and Public Health, Faculty of Medicine, Autonomous University of Barcelona, Bellaterra, (Cerdanyola del Vallès), ES-08193 Barcelona, Spain
| | - Judith Lleberia
- Departament of Obstetrics and Gynecology, Parc Taulí Health Corporation, ES-08208 Sabadell, Spain
| | - Laura Costa
- Departament of Obstetrics and Gynecology, Parc Taulí Health Corporation, ES-08208 Sabadell, Spain
| | - Miriam Guitart
- UDIAT Diagnostic Center, Parc Taulí Health Corporation, ES-08208 Sabadell, Spain
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, ES-17003 Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, ES-17003 Girona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), ES-08010 Barcelona, Spain
- Correspondence:
| | - Jordi Benet
- Unit of Cell Biology and Medical Genetics, Department of Cell Biology, Physiology and Immunology, Faculty of Medicine, Autonomous University of Barcelona, Bellaterra (Cerdanyola del Vallès), ES-08193 Barcelona, Spain
| | - María José Amengual
- UDIAT Diagnostic Center, Parc Taulí Health Corporation, ES-08208 Sabadell, Spain
| | - Jordi Ribas-Maynou
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, ES-17003 Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, ES-17003 Girona, Spain
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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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Is seminal quality worsening? A 20-year experience in Córdoba, Argentina. J Assist Reprod Genet 2022; 39:1125-1134. [PMID: 35296953 PMCID: PMC9107558 DOI: 10.1007/s10815-022-02458-4] [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: 12/16/2021] [Accepted: 03/07/2022] [Indexed: 10/18/2022] Open
Abstract
PURPOSE To assess the possible variations in semen quality during the last 20 years in Córdoba, Argentina, and to identify possible causal lifestyle or genitourinary factors. METHODS Retrospective study of 23,130 patients attending an andrology laboratory. The 20-year period (2001-2020) was divided into four quinquenniums. Seminal parameters (sperm concentration, motility, morphology, viability, and membrane functional integrity) were classified as normal or abnormal according to WHO, and results were expressed as percentage of patients abnormal for each parameter per quinquennium. In addition, the percentage of patients per quinquennium exposed to the different risk factors (daily alcohol and/or tobacco consumption; occupational exposure to heat or toxics; history of parotitis or varicocele; and high body mass index, BMI) was reported. RESULTS Patients included in our study did not show impairment in seminal quality over time. Beyond a transient decrease in normozoospermia in the second and third quinquennium, possibly explained by a parallel increase in teratozoospermia, other important parameters of the spermogram did not change. In fact, abnormalities in sperm concentration (oligozoospermia), total sperm count, viability and response to hypoosmotic test showed a decreasing trend over time. On the other hand, parotitis, varicocele, morbid obesity and regular exposition to heat/toxics were the factors more frequently associated with semen abnormalities; the last two increased their frequency over the study period. CONCLUSION The population included in this study did not show a clear impairment in semen quality during the last 20 years. The decreasing patterns found were associated with high BMI and exposure to heat/toxics.
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Ye YX, Chen HG, Sun B, Chen YJ, Duan P, Meng TQ, Xiong CL, Wang YX, Pan A. Associations between depression, oxidative stress, and semen quality among 1,000 healthy men screened as potential sperm donors. Fertil Steril 2021; 117:86-94. [PMID: 34656302 DOI: 10.1016/j.fertnstert.2021.09.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To explore the association between depression and semen quality and the mediating role of oxidative stress. DESIGN Cross-sectional study with repeated measures of semen quality. SETTING Human Sperm Bank of Hubei Province, People's Republic of China. PATIENT(S) From April 2017 to July 2018, we recruited 1,000 potential sperm donors who completed the Beck Depression Inventory questionnaire and had measures of oxidative stress biomarkers. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Severity of depression was evaluated by the Beck Depression Inventory scores (0-4, no depression; 5-13, mild depression; 14-20, moderate depression; and 21 or greater, severe depression). The urinary concentrations of 8-hydroxy-2-deoxyguanosine, 4-hydroxy-2-nonenal-mercapturic acid, and 8-iso-prostaglandin F2α (8-isoPGF2α) were measured to reflect oxidative stress status. Repeated semen quality parameters (n = 5,880) were examined by trained professional technicians according to the World Health Organization laboratory manual. Associations between depression, oxidative stress, and repeated measures of semen quality parameters were evaluated using linear or mixed-effects models with adjustment for potential confounders. Mediation analysis was performed to test the potential mediating role of oxidative stress. RESULT(S) A total of 391 (39.1%) men were classified as mild depression, 67 (6.7%) as moderate depression, and 19 (1.9%) as severe depression. Inverse dose-response relationships between severity of depression and semen quality parameters were found. Compared with men without depression (n = 523), those with severe depression had a 25.26% (95% confidence interval, -38.65%, -8.93%) lower semen volume, 37.04% (-55.37%, -11.20%) lower total sperm count, 13.57% (-23.17%, -2.78%) lower total motility, and 15.08% (-25.09%, -3.72%) lower progressive motility; men with moderate depression also had a 12.28% (-21.16%, -2.40%) lower semen volume and 23.56% (-36.50%, -7.97%) lower total sperm count. We found a positive dose-response relationship between severity of depression and urinary 8-isoPGF2α concentrations. However, we found no evidence that the associations between depression status and semen quality were mediated by oxidative stress markers. CONCLUSION(S) In the study of Chinese male sperm donors, men with depression had worse semen quality parameters, including semen volume, sperm concentration, total sperm count, total motility, and progressive motility. Although depression was positively associated with urinary 8-isoPGF2α concentrations, depression-semen quality associations were not mediated by oxidative stress.
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Affiliation(s)
- Yi-Xiang Ye
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Heng-Gui Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China; Clinical Research and Translation Center, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Bin Sun
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Ying-Jun Chen
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Peng Duan
- Center for Reproductive Medicine, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, Hubei, People's Republic of China
| | - Tian-Qing Meng
- Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science and Technology, Hubei Province Human Sperm Bank, Wuhan, Hubei, People's Republic of China
| | - Cheng-Liang Xiong
- Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science and Technology, Hubei Province Human Sperm Bank, Wuhan, Hubei, People's Republic of China
| | - Yi-Xin Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - An Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.
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Sperm donor lifestyle survey: modifiable risk factors for potential sperm donors. J Assist Reprod Genet 2021; 38:2965-2974. [PMID: 34554361 DOI: 10.1007/s10815-021-02322-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 09/13/2021] [Indexed: 10/20/2022] Open
Abstract
OBJECTIVES To examine the association between modifiable lifestyle factors and the main semen parameter values, the number of qualified sperm donors, and to provide some sensible guidance for sperm donors. METHODS Healthy men screened as potential sperm donors were recruited in the Hunan Province Human Sperm Bank of China from March 2019 to December 2019. Participants were invited to complete interviewer-assisted questionnaires on eleven items of information. Univariate and multivariate analyses were conducted to analyze which lifestyle factors collected by the questionnaire had an impact on the eligibility and main semen parameters of sperm donors. RESULTS The eligibility of men as sperm donors was strongly influenced by the duration of abstinence (P = 0.002). The rate of eligibility sperm donors increased significantly with the number of days of abstinence. In addition, semen volume increased with abstinence time (P = 0.000). Exercise frequency (P = 0.025) and abstinence time (P = 0.000) were positively correlated with sperm concentration, and masturbation frequency was negatively correlated with sperm concentration (P = 0.013). Progressive sperm motility was significantly affected by abstinence time (P = 0.000) and bedtime (P = 0.047). CONCLUSIONS Abstinence time was highly associated with semen parameters and donor qualification. Increase the abstinence time before donation may be meaningful in improving the proportion of eligible sperm donors.
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Liu J, Dai Y, Li Y, Yuan E, Wang Q, Guan Y, Lou H. Analysis of the screening results of 24040 potential sperm donors in a human sperm bank in Henan Province, China: a 14-year retrospective cohort study. Hum Reprod 2021; 36:1205-1212. [PMID: 33611556 DOI: 10.1093/humrep/deab028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 01/18/2021] [Indexed: 11/15/2022] Open
Abstract
STUDY QUESTION Is there a relation between the characteristics of potential sperm donors and the acceptance rate of these potential donors? SUMMARY ANSWER A relatively higher acceptance rate was observed for potential sperm donors who were aged ≤ 35 years, were married, had children, and who had received higher education, and acceptance rates were also higher during spring and winter than summer and autumn. WHAT IS KNOWN ALREADY Recruiting donors to a sperm bank program is difficult and slow owing to the high rates of rejection and dropout. STUDY DESIGN, SIZE, DURATION A total of 24040 potential sperm donors were screened by the Henan Human Sperm Bank from 2006 to 2019. PARTICIPANTS/MATERIALS, SETTING, METHODS Potential sperm donors were recruited using the following baseline requirement: height of 168 cm or taller; age 22-45 years; currently attending or had graduated from high school or above. Men who met the criteria for age, height, and education level were invited for semen quality screening. The acceptable criteria for semen samples included liquefaction time < 60min, volume ≥ 2mL, sperm concentration ≥ 60 × 106/mL, progressive motility ≥ 60%, post-thaw motility ≥ 40%, pre-freezing total motile sperm per vial > 30 × 106/mL, post-thaw total motile sperm per vial > 12 × 106/mL, and freeze-thaw survival rate ≥ 60%. Any potential sperm donors meeting the minimum criteria for acceptable semen quality on two consecutive semen samples were scheduled for clinical assessment, physical examination, and laboratory tests. The reasons for sperm donor rejection were analyzed. The characteristics of accepted and rejected donors were compared using the chi-square test, and multivariate logistic regression analyses were conducted to identify factors associated with the acceptance rate of potential sperm donors and the positive rate of sexually transmitted diseases (STDs). MAIN RESULTS AND THE ROLE OF CHANCE Only 23.38% (5620/24040) of potential sperm donors were accepted. The top four reasons for rejection were suboptimal semen quality (90.27%), STDs (6.26%), dropped out (2.65%), and chromosomal abnormalities (0.35%). The most common reason for the rejection of donors with an STD was a positive test for mycoplasmas (49.05%), followed by hepatitis B virus (27.56%), Chlamydia trachomatis (4.68%), and Escherichia coli (3.03%). n this study, the acceptance rate for men aged ≤ 35 years was significantly higher than that for men aged >35 years (P < 0.05). The acceptance rates were also significantly higher for men with a higher education than for men with lower education, married men than unmarried men, and men with children than men without children (P < 0.05). Moreover, acceptance rates were significantly higher during spring and winter than during summer (P <0.05) but were not significantly higher during autumn than during summer (P >0.05). LIMITATIONS, REASONS FOR CAUTION This study was not performed to analyze the effect of lifestyle habits, such as alcohol consumption and cigarette smoking, on the acceptance rate of potential sperm donors. WIDER IMPLICATIONS OF THE FINDINGS Only a small proportion of potential sperm donors were accepted in this anonymous sperm donor program. New strategies for sperm donor recruitment may be required to improve the acceptance rate. In the future, we may have to target potential sperm donors who are aged ≤ 35 years and who received higher education in order to improve the acceptance rate. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by the Joint Construction Project of Henan Medical Science and Technology Research Plan under grant number LHGJ20190389. The authors report no conflict of interest. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Junjie Liu
- Henan Human Sperm Bank, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yanpeng Dai
- Department of Clinical Laboratory, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yushan Li
- Henan Human Sperm Bank, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Enwu Yuan
- Department of Clinical Laboratory, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Quanxian Wang
- Henan Human Sperm Bank, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yichun Guan
- Center for Reproductive Medicine, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hua Lou
- Center for Reproductive Medicine, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Rosa-Villagrán L, Barrera N, Montes J, Riso C, Sapiro R. Decline of semen quality over the last 30 years in Uruguay. Basic Clin Androl 2021; 31:8. [PMID: 33952196 PMCID: PMC8101031 DOI: 10.1186/s12610-021-00128-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 02/18/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Over the last years, there has been an increasing concern about a global decline in men's fertility. Specifically, some evidence indicates that sperm quality has decreased over the last years. However, reports showing the changes in sperm quality with time are inconsistent. Part of the contradictions between studies is attributed to geographical differences. Surprisingly, few studies include data from South American countries, creating a bias in the conclusions. This study aims to determine how sperm quality has evolved over the past 30 years in Uruguay. For this purpose, 317 medical records from allegedly healthy sperm donor candidates, aged between 18 and 36 years old, who voluntarily requested to be considered as sperm donors between 1988 and 2019, were analyzed. The studied variables were the following sperm parameters: semen volume, sperm cell concentration, total sperm number, progressive motility, vitality, and sperm morphology. A correlative statistical analysis was performed between seminal parameter values and the year data were collected. RESULTS We found a statistically significant decrease in sperm concentration and normal sperm morphology during the studied period. There was no decrease in vitality, seminal volume, and total progressive motility. Semen parameters were not associated with tobacco, drugs, or alcohol consumption. CONCLUSIONS We conclude that the sperm quality of donor candidates in Uruguay decreased during this period. Further studies should be carried out to verify the occurrence of this phenomenon in the general population and find its possible causes.
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Affiliation(s)
- Lucía Rosa-Villagrán
- Departamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Gral. Flores 2125, 11800, Montevideo, Uruguay
| | - Natalibeth Barrera
- Laboratorio de Andrología, Fertilab Laboratorio de Análisis Clínicos, Montevideo, Uruguay.,Laboratorio de FIV, Centro de Esterilidad Montevideo (CEM), Montevideo, Uruguay
| | - José Montes
- Laboratorio de Andrología, Fertilab Laboratorio de Análisis Clínicos, Montevideo, Uruguay
| | - Carlos Riso
- Departamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Gral. Flores 2125, 11800, Montevideo, Uruguay
| | - Rossana Sapiro
- Departamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Gral. Flores 2125, 11800, Montevideo, Uruguay.
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Cunha LMSDCPD, Teixeira MYP, Daltro AFCS, Torquato SE, Assis RCD, Celedonio RF, Pires LV, Maia CSC, Guedes MIF. Unbalance of Se and nutritional status in male infertility. JBRA Assist Reprod 2021; 25:202-208. [PMID: 33150782 PMCID: PMC8083850 DOI: 10.5935/1518-0557.20200067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Objective: To evaluate the selenium status and oxidative stress in male infertility cases selected from a private human reproduction center in the state of Ceará, Brazil. Methods: The present study had a cross-sectional quantitative approach, carried out between January and October 2013 at a Human Reproduction Center. The studied population was composed of 49 male individuals seen at the clinic, aged between 18 and 60 years. Blood samples were collected to measure serum selenium concentrations, erythrocyte activity and glutathione peroxidase. After medical diagnosis, the participants were divided into fertile and infertile groups. Blood samples were collected for establishing Se concentrations in plasma and erythrocytes, and measurements of the enzymatic activity of glutathione peroxidase in the erythrocytes. Result: it resulted in 53.1% of fertile men and 46.9% of infertile men. The average age of the fertile group was 34.1 years and the infertile group was 37.3 years. Regarding the assessment of nutritional status, the scatter diagram of the infertility group showed a higher body mass index and waist circumference, showing that this group has a higher risk of global and abdominal obesity compared to the fertile group (p<0.0001, respectively). There were similarities between the groups regarding caloric intake, macronutrient and selenium intake. Conclusion: We can conclude that the serum values of selenium, in excess and in deficiency, can be harmful to male fertility.
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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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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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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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Changes in seminal parameters among Brazilian men between 1995 and 2018. Sci Rep 2020; 10:6430. [PMID: 32286479 PMCID: PMC7156660 DOI: 10.1038/s41598-020-63468-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 03/30/2020] [Indexed: 11/23/2022] Open
Abstract
Aiming to investigate trends in seminal parameter values among Brazilian men between 1995 and 2018, we performed a retrospective analysis of spermograms of couples admitted for infertility testing at UNICAMP/Brazil. For the present study, only the first sample produced by each man was analyzed (9,267 samples). Total motile sperm count (TMSC), percentage of spermatozoa with normal morphology (NM), and sperm concentration after seminal processing (SCA) were considered dependent variables. Statistical analysis was carried out through linear regression for the median values both in the general population and in the population categorized by age group (<30, 30–39, and ≥40 years). During the study period, the mean age of men was 32.46 (± 6.48) years, with a median of 32 (18–67) years. We found a significant decrease in the median values of TMSC (reduction of 2.84 million/year), NM (reduction of 0.52% each year) and SCA (reduction of 0.24 million/mL each year). In conclusion, we observed that Brazilian men undergoing infertility investigation had a decline in seminal parameters in the past 23 years. Surveillance should be maintained in the coming years, and further studies are needed to elucidate possible causes for seminal deterioration and to devise strategies to reverse this trend.
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Cao X, Chang HY, Xu JY, Zheng Y, Xiang YG, Xiao B, Geng XJ, Ni LL, Chu XY, Tao SB, He Y, Mao GH. The effectiveness of different down-regulating protocols on in vitro fertilization-embryo transfer in endometriosis: a meta-analysis. Reprod Biol Endocrinol 2020; 18:16. [PMID: 32113479 PMCID: PMC7049222 DOI: 10.1186/s12958-020-00571-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 02/10/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND To investigate the effectiveness of the GnRH-a ultra-long protocol, GnRH-a long protocol, and GnRH-a short protocol used in in vitro fertilization-embryo transfer (IVF-ET) in infertile women with endometriosis. METHODS We searched PubMed, Embase, Web of Science, Cochrane Library, Elsevier Science Direct, OA Library, Google Scholar, China National Knowledge Infrastructure (CNKI), Wanfang Data Knowledge Service Platform, China Science and Technology Journal database, and the China Biology Medicine disc for randomized controlled trials (RCTs) and observational studies (non-RCTs) to evaluate the efficacy of the GnRH-a ultra-long protocol, GnRH-a long protocol, and GnRH-a short protocol in IVF-ET in infertile patients with endometriosis. RESULTS A total of 21 studies in compliance with the standard literature were included, and RCT and non-RCT studies were analyzed separately. This meta-analysis showed that the GnRH-a ultra-long protocol could improve the clinical pregnancy rate of infertile patients in RCT studies, especially in patients with stages III-IV endometriosis (RR = 2.04, 95% CI: 1.37~3.04, P < 0.05). However, subgroup analysis found the different down-regulation protocols provided no significant difference in improving clinical outcomes in patients with endometriosis in the non-RCT studies. CONCLUSION This study suggests that the GnRH-a ultra-long protocol can improve the clinical pregnancy rate of the patients with stages III-IV endometriosis in RCT studies. Although it is generally believed that the results of RCT are more reliable, the conclusions of the non-RCT studies cannot be easily neglect, which let us draw conclusions more cautious.
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Affiliation(s)
- Xue Cao
- Reproductive Medical Center, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, China
| | - Hong-Yang Chang
- Reproductive Medical Center, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, China
| | - Jun-Yan Xu
- Reproductive Medical Center, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, China
| | - Yi Zheng
- Wuhan Institute of Dermatology and Venerology, Wuhan, China
| | - Yun-Gai Xiang
- Reproductive Medical Center, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, China
| | - Bing Xiao
- Reproductive Medical Center, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, China
| | - Xu-Jing Geng
- Reproductive Medical Center, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, China
| | - Li-Li Ni
- Reproductive Medical Center, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, China
| | - Xi-Ying Chu
- Reproductive Medical Center, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, China
| | - Shi-Bo Tao
- Reproductive Medical Center, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, China
| | - Yan He
- Teaching Office, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, China.
| | - Gen-Hong Mao
- Reproductive Medical Center, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, China.
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Palani A, Sengupta P, Agarwal A, Henkel R. Geographical differences in semen characteristics: Comparing semen parameters of infertile men of the United States and Iraq. Andrologia 2020; 52:e13519. [DOI: 10.1111/and.13519] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 12/03/2019] [Accepted: 12/18/2019] [Indexed: 12/28/2022] Open
Affiliation(s)
- Ayad Palani
- Department of Chemistry College of Science University of Garmian Kalar Iraq
| | - Pallav Sengupta
- Department of Physiology Faculty of Medicine MAHSA University Jenjarom Malaysia
| | - 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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Borges E, Zanetti BF, Setti AS, Braga DPDAF, Provenza RR, Iaconelli A. Sperm DNA fragmentation is correlated with poor embryo development, lower implantation rate, and higher miscarriage rate in reproductive cycles of non-male factor infertility. Fertil Steril 2019; 112:483-490. [PMID: 31200969 DOI: 10.1016/j.fertnstert.2019.04.029] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 04/22/2019] [Accepted: 04/22/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To study the implications of sperm DNA fragmentation (SDF) in intracytoplasmic sperm injection cycles for non-male factor infertility. DESIGN Prospective cohort study. SETTING Private university-affiliated IVF center. PATIENT(S) Data from 475 cycles performed from June 2016 to June 2017. INTERVENTION(S) Cycles were divided according to SDF rate into two groups: <30% SDF (n = 433) and ≥30% SDF (n = 42). Laboratory and clinical outcomes were compared between groups by generalized linear models adjusted for potential confounders. MAIN OUTCOME MEASURE(S) Embryo quality and miscarriage rates. RESULT(S) Fertilization rate was similar between groups (≥30% SDF, 85.28% ± 1.06% vs. <30% SDF, 90.68% ± 3.61%). Significantly lower rates of normal cleavage speed (≥30% SDF, 61.12% ± 4.21% vs. <30% SDF, 72.53% ± 1.24%), high-quality embryos at day 3 (≥30% SDF, 23.07% ± 5.56% vs. <30% SDF, 36.41% ± 1.53%), blastocyst formation (≥30% SDF, 39.09% ± 2.73% vs. <30% SDF, 58.83% ± 7.59%), blastocyst quality (≥30% SDF, 11.97% ± 1.22% vs. <30% SDF, 30.09% ± 2.39%), and implantation (33.24% ± 1.66% vs. <30% SDF, 46.40% ± 4.61%) were observed in cycles with higher SDF, despite similar pregnancy rates (≥30% SDF, 30.40% vs. <30% SDF, 32.40%). A 2.5-fold miscarriage rate was observed in cycles with an SDF above the established cutoff (≥30% SDF, 42.8% vs. <30% SDF, 16.8%). CONCLUSION(S) Higher SDF is correlated with poor embryo development, lower implantation rate, and higher miscarriage rate in non-male factor infertility intracytoplasmic sperm injection cycles. Since defects in sperm may be hidden, the SDF test can bring additional information to the sperm quality evaluation of men with unknown infertility history.
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Affiliation(s)
- Edson Borges
- Fertility Medical Group, São Paulo, Brazil; Instituto Sapientiae, Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brazil.
| | - Bianca Ferrarini Zanetti
- Fertility Medical Group, São Paulo, Brazil; Instituto Sapientiae, Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brazil
| | - Amanda Souza Setti
- Fertility Medical Group, São Paulo, Brazil; Instituto Sapientiae, Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brazil
| | | | | | - Assumpto Iaconelli
- Fertility Medical Group, São Paulo, Brazil; Instituto Sapientiae, Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brazil
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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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Borges E, Braga DPDAF, Setti AS. Shorter ejaculatory abstinence interval and maternal endometrium exposure to seminal plasma as tools to improve pregnancy rate in patients undergoing intracytoplasmic sperm injection cycles. JBRA Assist Reprod 2018; 22:160-161. [PMID: 30129352 PMCID: PMC6106623 DOI: 10.5935/1518-0557.20180059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
- Edson Borges
- Fertility Medical Group. São Paulo/SP, Brazil.,Instituto Sapientiae - Centro de Estudos e Pesquisa em Reprodução Assistida. São Paulo/SP, Brazil
| | | | - Amanda Souza Setti
- Fertility Medical Group. São Paulo/SP, Brazil.,Instituto Sapientiae - Centro de Estudos e Pesquisa em Reprodução Assistida. São Paulo/SP, Brazil
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Borges E, Braga DPDAF, Provenza RR, Figueira RDCS, Iaconelli A, Setti AS. Paternal lifestyle factors in relation to semen quality and in vitro reproductive outcomes. Andrologia 2018; 50:e13090. [PMID: 30019480 DOI: 10.1111/and.13090] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 06/04/2018] [Accepted: 06/12/2018] [Indexed: 12/19/2022] Open
Abstract
This prospective-cohort study aimed at investigating the influence of paternal lifestyle factors on semen parameters and intracytoplasmic sperm injection (ICSI) outcomes. The influence of paternal lifestyle factors on seminal quality and ICSI outcomes was investigated in male patients undergoing conventional semen analysis. Cigarette smoking negatively influenced semen volume (B: -0.417, slope: 1.570, p = 0.047), sperm count/ml (B: -7.363, slope: 52.298, p = 0.014), total sperm count (B: -4.43, slope: 178.165, p = 0.023), total motile sperm count (B: -1.38, slope: 100.276, p = 0.045) and SDF (B: 0.014, slope: 9.767, p = 0.033). Alcohol consumption negatively influenced sperm count/ml (B: -12.527, slope: 42.255, p = 0.040) and sperm DNA fragmentation (B: 5.833, slope: 9.680, p = 0.002). There were no significant influences of other paternal lifestyle factors. Cigarette smoking negatively influenced the fertilisation rate (B: -1.349, slope: 21.950, p = 0.039) and the blastocyst formation rate (B: -14.244, slope: 28.851, p = 0.025). Alcohol consumption negatively influenced fertilisation rate (B: -3.617, slope: 20.138, p = 0.041) and blastocyst formation rate (B: -34.801, slope: 30.044, p = 0.042). Cigarette smoking and alcohol consumption appear to reduce semen quality, fertilisation and blastocyst formation rates; thus, it would be wise to recommend that male partners reconsider their lifestyle during in vitro reproduction treatment.
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Affiliation(s)
- Edson Borges
- Fertility Medical Group, São Paulo, Brazil.,Instituto Sapientiae - Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brazil
| | | | | | | | - Assumpto Iaconelli
- Fertility Medical Group, São Paulo, Brazil.,Instituto Sapientiae - Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brazil
| | - Amanda Souza Setti
- Fertility Medical Group, São Paulo, Brazil.,Instituto Sapientiae - Centro de Estudos e Pesquisa em Reprodução Humana Assistida, São Paulo, Brazil
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21
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Nahata L, Caltabellotta NM, Yeager ND, Lehmann V, Whiteside SL, O'Brien SH, Quinn GP, Gerhardt CA. Fertility perspectives and priorities among male adolescents and young adults in cancer survivorship. Pediatr Blood Cancer 2018. [PMID: 29537134 DOI: 10.1002/pbc.27019] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Infertility is a common and distressing late effect of cancer treatment among male survivors. Investigators examined desire for parenthood, prioritization of fertility compared to other life goals, and reports of fertility-related discussions among a cohort of male adolescent and young adult survivors. Eighty percent desired a biological child, yet only 31% ranked having a child among their "top 3" life goals. Only 40% reported fertility-related discussions with their health care providers in survivorship. Given the importance of biological children among this cohort, future guidelines should encourage a more proactive approach to providing fertility counseling and offering testing, to mitigate distress and prevent unplanned pregnancies.
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Affiliation(s)
- Leena Nahata
- Division of Endocrinology, Nationwide Children's Hospital, Columbus, Ohio.,Center for Biobehavioral Health, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio.,Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio
| | - Nicole M Caltabellotta
- Center for Biobehavioral Health, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Nicholas D Yeager
- Division of Hematology/Oncology, Nationwide Children's Hospital, Columbus, Ohio.,Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio
| | - Vicky Lehmann
- Department of Psychology, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Stacy L Whiteside
- Division of Hematology/Oncology, Nationwide Children's Hospital, Columbus, Ohio
| | - Sarah H O'Brien
- Division of Hematology/Oncology, Nationwide Children's Hospital, Columbus, Ohio.,Center for Innovation in Pediatric Practice, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio.,Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio
| | - Gwendolyn P Quinn
- Department of Obstetrics and Gynecology, New York University Medical Center, New York City, New York
| | - Cynthia A Gerhardt
- Center for Biobehavioral Health, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio.,Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio
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22
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Ajayi AB, Ajayi VD, Oyetunji I, Biobaku O, Aikhuele H, Adedamilola A, Ayelehin II, Afolabi BM. Are semen parameters worsening? Comparing semen parameters 10 years apart. Niger Med J 2017; 58:72-75. [PMID: 29269985 PMCID: PMC5726177 DOI: 10.4103/0300-1652.219350] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background: Semen parameters, especially sperm count and motility have been said to be diminishing over time with implications for fertility and infertility treatment. Objective: The objective of this study was to study semen parameters 10 years apart and describe any observed change. Design: A retrospective study carried out at Nordica Fertility Centre, Lagos, Nigeria. Semen parameters of 100 consecutive men who sought fertility treatment on account of infertility in 2003 and semen parameters of 100 consecutive men who also sought fertility treatment at the center in 2013 on account of infertility were analyzed and compared. A paired t-test was performed to ascertain whether sperm counts have diminished over the last decade. The World Health Organization semen values were used as standard. Main Outcome Measures: They are sperm count, motility, and mean progressive motility. Results: The mean sperm count in the 2003 group was 34.6 × 106/ml (range: 0.1–105.0 106/ml) compared with 21.8 × 106/ml (range: 0.1–80.0 × 106/ml) in the 2013 group. The mean motility was 47.9% in the 2003 group and 45.3% in the 2013 group. The mean progressive motility in the 2003 group was predominantly graded as good (50% good, 44% fair, 2% poor, 4% no motility) while in the 2013 group, the predominant grade of mean progressive motility was fair (15% good, 81% fair, 4% poor). Normal morphology was more commonly seen in the 2013 group compared to the 2003 group. Mean semen volume was 2.7 and 2.6 ml in 2003 and 2013 groups, respectively. The mean difference in sperm count (mean = 12.8, standard deviation = 31.6, n = 100) was significantly >0 providing evidence that sperm counts have diminished in the last decade. Conclusion: There was a statistically significant 37% drop in mean sperm count and mean progressive motility worsened in the last decade. These may have far-reaching effects on infertility and its treatment.
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Affiliation(s)
| | - Victor Dayo Ajayi
- Nordica Fertility Center, 106 Norman Williams Street, Ikoyi, Lagos, Nigeria
| | - Ifeoluwa Oyetunji
- Nordica Fertility Center, 106 Norman Williams Street, Ikoyi, Lagos, Nigeria
| | | | - Happiness Aikhuele
- Nordica Fertility Center, 106 Norman Williams Street, Ikoyi, Lagos, Nigeria
| | - Atiba Adedamilola
- Nordica Fertility Center, 106 Norman Williams Street, Ikoyi, Lagos, Nigeria
| | - I Ibukun Ayelehin
- Nordica Fertility Center, 106 Norman Williams Street, Ikoyi, Lagos, Nigeria
| | - Bamgboye M Afolabi
- Health Research Department, Health, Environment and Development Foundation, Yaba, Lagos, Nigeria
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23
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Saraf AJ, Nahata L. Fertility counseling and preservation: considerations for the pediatric endocrinologist. Transl Pediatr 2017; 6:313-322. [PMID: 29184812 PMCID: PMC5682384 DOI: 10.21037/tp.2017.07.02] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Infertility is a distressing consequence of numerous pediatric medical conditions and treatments. The field of pediatric fertility preservation has expanded rapidly over the past decade, and clinical guidelines emphasize the importance of discussing infertility risk and fertility preservation options with patients and families in a timely manner. Understanding the various mechanisms and presentations of fertility issues across diagnoses is imperative to provide counseling to patients and families, and identify individuals who may benefit from fertility preservation. The goals of this manuscript are to outline current fertility preservation options in pediatrics, review populations at-risk for infertility that are seen in pediatric endocrinology, and discuss other important issues related to fertility preservation including ethical considerations.
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Affiliation(s)
- Amanda J Saraf
- Division of Hematology/Oncology, Nationwide Children's Hospital, Columbus, OH, USA
| | - Leena Nahata
- Division of Endocrinology, Nationwide Children's Hospital, Columbus, OH, USA.,Center for Biobehavioral Health, the Research Institute, Nationwide Children's Hospital, Columbus, OH, USA
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24
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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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25
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Tian X, Jiang J, Wang J, Zhang S. Improved Fecundity in Northern China: A Secular Trend from 1980 to 2003. PLoS One 2016; 11:e0165097. [PMID: 27788188 PMCID: PMC5082934 DOI: 10.1371/journal.pone.0165097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 10/02/2016] [Indexed: 11/21/2022] Open
Abstract
Objective This study aimed to assess the trend of human fecundity over time in China. Methods This retrospective study was conducted in Tongliao, China. Couples who were married during the time period between January 1, 1981 and December 31, 2003 were considered eligible for this study. A total of 27,413 individuals provided valid information via house-to-house interviews. The 12-month cumulative pregnancy rate (CPR) and annual percentage change were used as the outcome measurements. Results There was a significant increase in the CPR over the five successive time groups. A break point in 1988 divided the entire study period into two distinct segments: 1981–1988, during which the CPR increased from 72.2% to 84.2%, and 1988–2003, during which the CPR increased from 84.2% to 87.2%. Conclusions The findings were unlikely to be the result of biases, and could not be explained by increased medical treatment for infertility and changes in the prevalence of sexually transmitted diseases. Dramatic societal and behavioral changes due to the unique family planning policy and economic reform policies in China might have been the plausible reason for the results.
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Affiliation(s)
- Xiaobing Tian
- North Sichuan Medical College, Nanchong, Sichuan, China
| | - Jingmei Jiang
- Department of Epidemiology and Statistics, Institute of Basic Medical Sciences of Chinese Academy of Medical Sciences, School of Basic Medicine of Peking Union Medical College, Beijing, China
| | - Jiedong Wang
- National Research Institute for Population and Family Planning, Beijing, China
| | - Shucheng Zhang
- National Research Institute for Population and Family Planning, Beijing, China
- * E-mail:
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