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Zhang EC, Yin XY, Peng ZY, Lai ZZ, Hu L, Peng YQ, Zhang H, Ming R, Lin G, Li WN. Novel insights into necrozoospermia from a single-center study: reference ranges, possible etiology, and impact on male fertility. Asian J Androl 2024; 26:528-534. [PMID: 38831691 DOI: 10.4103/aja202422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 03/08/2024] [Indexed: 06/05/2024] Open
Abstract
ABSTRACT Necrozoospermia is a poorly documented condition with a low incidence, and its definition and clinical significance are unclear. Herein, we provide a reference range for necrozoospermia and discuss its possible etiology and impact on male fertility and assisted reproductive outcomes. We extracted relevant information from 650 Chinese male partners of infertile couples and statistically analyzed sperm vitality. Necrozoospermia was present in 3.4% (22/650) of our study population, and the lower cut-off value for sperm vitality was 75.3%. We compared two methods for assessing sperm vitality (eosin-nigrosin head staining and hypo-osmotic swelling test [HOST]), for which the percentage in the eosin-nigrosin group (mean ± standard deviation [s.d.]: 77.5% ± 10.5%) was significantly higher than that in the HOST group (mean ± s.d.: 58.1% ± 6.7% [5-10 min after incubation] and 55.6% ± 8.2% [25-30 min after incubation]; both P < 0.001). The incidence of necrozoospermia increased with age (odds ratio [OR] = 1.116, 95% confidence interval [CI]: 1.048-1.189, P = 0.001), while the percentage of normal sperm morphology and DNA fragmentation index (DFI) were significantly associated with necrozoospermia, with ORs of 0.691 (95% CI: 0.511-0.935, P = 0.017) and 1.281 (95% CI: 1.180-1.390, P < 0.001), respectively. In the following 6 months, we recruited 166 patients in the nonnecrozoospermia group and 87 patients in the necrozoospermia group to compare intracytoplasmic sperm injection (ICSI) and pregnancy outcomes between the two groups. The necrozoospermia group had a significantly lower normal fertilization rate (74.7% vs 78.2%, P = 0.041; OR = 0.822; 95% CI: 0.682-0.992) than that in the nonnecrozoospermia group. This study presents substantial information on necrozoospermia to establish comprehensive and applicable reference values for sperm vitality for spontaneous conception and artificially assisted reproductive management.
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Affiliation(s)
- Er-Chen Zhang
- NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Sciences, Central South University, Changsha 410008, China
| | - Xin-Yu Yin
- NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Sciences, Central South University, Changsha 410008, China
| | - Zi-Yan Peng
- Laboratory of Zebrafish Genetics, College of Life Sciences, Hunan Normal University, Changsha 410006, China
| | - Zhi-Zhou Lai
- Hunan Guangxiu Hospital, School of Medicine, Hunan Normal University, Changsha 410001, China
| | - Liang Hu
- NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Sciences, Central South University, Changsha 410008, China
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha 410008, China
- Hunan International Scientific and Technological Cooperation Base of Development and Carcinogenesis, Changsha 410008, China
| | - Yang-Qin Peng
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha 410008, China
- Hunan International Scientific and Technological Cooperation Base of Development and Carcinogenesis, Changsha 410008, China
| | - Huan Zhang
- NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Sciences, Central South University, Changsha 410008, China
| | - Rui Ming
- NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Sciences, Central South University, Changsha 410008, China
| | - Ge Lin
- NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Sciences, Central South University, Changsha 410008, China
| | - Wei-Na Li
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha 410008, China
- Hunan Guangxiu Hi-tech Life Technology Co., Ltd., Changsha 410013, China
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Yazdanpanah Ghadikolaei P, Ghaleno LR, Vesali S, Janzamin E, Gilani MAS, Sajadi H, Dizaj AVT, Shahverdi A, Drevet JR, Moghadam Masouleh AA. Epidemiology of sperm DNA fragmentation in a retrospective cohort of 1191 men. Andrology 2023; 11:1663-1672. [PMID: 37280171 DOI: 10.1111/andr.13472] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 05/11/2023] [Accepted: 06/01/2023] [Indexed: 06/08/2023]
Abstract
BACKGROUND The scientific and clinical communities now recognize that sperm DNA integrity is crucial for successful fertilization, good embryo development, and offspring quality of life. Despite the apparent unanimity, this criterion is rarely evaluated in clinical practice. We evaluated the sperm DNA fragmentation index of nearly 1200 sperm samples and its connections based on the patient's age, body mass index, the season of sperm collection, geographical location, medical history, and addictive behaviors. METHODS A cohort of 1503 patients who were referred to the Royan Institute between July 2018 and March 2020 was examined. Only 1191 patient records with demographic data, complete semen analysis, and DNA fragmentation index measurements were included in the final cohort. Documents were classified, incorporated into statistical models, and analyzed. RESULTS The results confirmed previous findings that the sperm DNA fragmentation index was significantly higher in aging men. The sperm DNA fragmentation index and high DNA stainability levels were significantly higher in spring and summer samples than in those of other seasons. No correlation was found between semen DNA fragmentation index and patient body mass index, although the study cohort was significantly overweight. Contrary to what might be expected, we observed that the sperm DNA fragmentation index was higher in rural than in urban patients. Intriguingly, epileptic patients exhibited significantly higher sperm DNA fragmentation index levels. DISCUSSION AND CONCLUSION Age is the factor that is most strongly associated with sperm DNA fragmentation index levels. Our analysis of 1191 samples indicates that between the ages of 19 and 59, the sperm DNA fragmentation index increases by an average of 2% each year. Intriguingly, from an epidemiological perspective, the warm season (spring/summer) is associated with a higher sperm DNA fragmentation index in the study population, possibly due to the deleterious effect of temperature on sperm quality. Some neurological diseases, such as epilepsy, are associated with decreased sperm DNA integrity. This observation could be related to the iatrogenic effects of associated therapies. In the study cohort, body mass index did not appear to be correlated with the DNA fragmentation index.
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Affiliation(s)
- Parisa Yazdanpanah Ghadikolaei
- Department of Molecular and Cellular Biology, Faculty of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, Tehran, Iran
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Leila Rashki Ghaleno
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Samira Vesali
- Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Ehsan Janzamin
- SABA Biomedical Science -Based Company, Tehran, Iran
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mohammad Ali Sadighi Gilani
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Hesamoddin Sajadi
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Ahmad Vosough Taghi Dizaj
- Department of Reproductive Imaging, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Abdolhossein Shahverdi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
- Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Joël R Drevet
- Faculty of Medicine, GReD Institute, Clermont-Ferrand, France
| | - AliReza Alizadeh Moghadam Masouleh
- Department of Molecular and Cellular Biology, Faculty of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, Tehran, Iran
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
- Gyn-medicum, Center for Reproductive Medicine, Göttingen, Germany
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany
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Jimbo M, Kunisaki J, Ghaed M, Yu V, Flores HA, Hotaling JM. Fertility in the aging male: a systematic review. Fertil Steril 2022; 118:1022-1034. [PMID: 36509505 PMCID: PMC10914128 DOI: 10.1016/j.fertnstert.2022.10.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/25/2022] [Accepted: 10/27/2022] [Indexed: 12/14/2022]
Abstract
The negative effect of advanced female age on fertility and offspring health is well understood. In comparison, much less is known about the implications of male age on fertility, with many studies showing conflicting results. Nevertheless, increasing evidence suggests that advanced paternal age has negative effects on sperm parameters, reproductive success, and offspring health. Herein, we summarize the current body of knowledge on this controversial topic, with the belief that this review will serve as a resource for the clinicians providing fertility counseling to couples with older male partners.
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Affiliation(s)
- Masaya Jimbo
- Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, Utah
| | - Jason Kunisaki
- Department of Human Genetics, University of Utah, Salt Lake City, Utah
| | - Mohammadali Ghaed
- Urology Department, Rasool Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Victor Yu
- University of Nevada Reno School of Medicine, Reno, Nevada
| | - Hunter A Flores
- Scott Department of Urology, Baylor College of Medicine, Houston, Texas
| | - James M Hotaling
- Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, Utah.
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Boursier A, Dumont A, Boitrelle F, Prasivoravong J, Lefebvre-Khalil V, Robin G, Barbotin AL. Necrozoospermia: The tree that hides the forest. Andrology 2022; 10:642-659. [PMID: 35246969 DOI: 10.1111/andr.13172] [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: 10/24/2021] [Revised: 02/21/2022] [Accepted: 02/28/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Necrozoospermia is a condition found in 0.2 to 0.4 % of male infertility cases. The causes of necrozoospermia are multiple: they can be related to testicular and/or post-testicular damage. Additionally, these causes most often involve the production of reactive oxygen species (ROS) and/or sperm DNA fragmentation (SDF) which can reduce the chances of spontaneous pregnancy or affect the outcome of assisted reproductive technologies. OBJECTIVE To focus on potential etiologies of necrozoospermia, its diagnosis and its therapeutic management especially before the employment of ICSI. METHODS Authors searched PubMed/Medline, Web of Science, Cochrane Library, Google and Institutional websites for medical subheading terms and free text words referred to "necrozoospermia", "sperm vitality", "sperm viability", "sperm DNA fragmentation" and "ICSI". RESULTS We identified twelve main etiologies of necrozoospermia responsible for either a decrease of sperm vitality, a mild a moderate or a severe necrozoospermia. In case of a confirmed decreased vitality, a thorough check-up should be conducted and if available, etiological treatment should be proposed. Therapeutic management could also include repeated ejaculations, drug treatments, the use of ICSI with ejaculated or surgically extracted spermatozoa in case of a non-treatable necrozoospermia. DISCUSSION AND CONCLUSION The potential causes of necrozoospermia should be investigated because many of them could be corrected, thus avoiding the use of ICSI. Moreover, if ICSI procedure remains necessary, the therapeutic management of necrozoospermia could also improve the chances of success by reducing oxidative stress and/or sperm DNA fragmentation. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Angele Boursier
- Institut de Biologie de La Reproduction-Spermiologie-CECOS, Hôpital Jeanne de Flandre, CHU Lille, Lille, F-59000, France
| | - A Dumont
- Service de Gynécologie Endocrinienne et Médecine de La Reproduction, Assistance Médicale à La Procréation et Préservation de La Fertilité, Hôpital Jeanne de Flandre, Avenue Eugène Avinée, CHU Lille, Lille, F-59000, France
| | - F Boitrelle
- Service de Biologie de la Reproduction et de Cytogénétique, Centre Hospitalier Poissy-Saint-Germain-en-Laye, Poissy, 78303, France
| | | | - V Lefebvre-Khalil
- Institut de Biologie de La Reproduction-Spermiologie-CECOS, Hôpital Jeanne de Flandre, CHU Lille, Lille, F-59000, France
| | - Geoffroy Robin
- Service de Gynécologie Endocrinienne et Médecine de La Reproduction, Assistance Médicale à La Procréation et Préservation de La Fertilité, Hôpital Jeanne de Flandre, Avenue Eugène Avinée, CHU Lille, Lille, F-59000, France.,Service d'Andrologie, Hôpital Huriez, CHU Lille, Lille, F-59000, France.,EA 4308 Gamètogenèse Et Qualité du Gamète, Université de Lille Et CHU de Lille, Lille, F-59000, France
| | - Anne-Laure Barbotin
- Institut de Biologie de La Reproduction-Spermiologie-CECOS, Hôpital Jeanne de Flandre, CHU Lille, Lille, F-59000, France.,EA 4308 Gamètogenèse Et Qualité du Gamète, Université de Lille Et CHU de Lille, Lille, F-59000, France
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Rubes J, Sipek J, Kopecka V, Musilova P, Vozdova M. Semen quality and sperm DNA integrity in city policemen exposed to polluted air in an urban industrial agglomeration. Int J Hyg Environ Health 2021; 237:113835. [PMID: 34461579 DOI: 10.1016/j.ijheh.2021.113835] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/20/2021] [Accepted: 08/24/2021] [Indexed: 01/16/2023]
Abstract
BACKGROUND We examined sperm quality in a cohort of city policemen in Ostrava at the end of a period with high concentrations of air pollutants (winter) and in the same cohort at the end of a relatively low exposure period (summer). METHODS The study group was comprised of 54 nonsmoking city policemen living and working in Ostrava, Czech Republic. Average daily air-pollutant concentrations recorded by stationary monitoring for 90 days preceding the collection of semen samples were evaluated for different city districts of Ostrava. Standard semen parameters were assessed according to the guidelines of the World Health Organization (2010). The parameters were semen volume, sperm concentration, sperm morphology, sperm motility, acrosome reaction and sperm plasma membrane integrity. Sperm DNA damage was analysed by the sperm chromatin structure assay (SCSA). Sperm motion characteristics were determined by Computer Assisted Semen Analysis (CASA). RESULTS The concentrations of all monitored pollutants (particulate matter, sulphur dioxide, nitrogen oxides, carbon monoxide, benzo[a]pyrene, benzene) were significantly increased during winter (p < 0.001), except for ozone, the concentration of which was significantly higher during summer. Sperm volume, concentration, % vitality, % sperm morphology (normal form) and % acrosome-intact sperm did not differ significantly between the monitoring periods. The percentages of total motility and progressive motility were significantly higher in March, i.e. at the end of winter (p = 0.001). However, CASA testing showed differences in sperm motion kinetics between spring and autumn samples. In the spring samples, we found a significantly lower % of straightness (p = 0.044) and the length of straight-line path (p = 0.01), while linearity and straight-line velocity were near the borderline value (p = 0.064; p = 0.054, respectively). As compared to summer, high exposure to air pollution during winter significantly increased the extent of sperm chromatin integrity damage (median 22.6 vs. 18.6%) (p = 0.003) and the proportion of immature spermatozoa (median 11.2 vs. 9.9%, p = 0.001). Sperm DNA damage negatively correlated with total motility and progressive motility (r = -0.611, -0.299; p < 0.001). The negative correlation with vitality, normal morphology and acrosome-intact sperm (r = -0.522, -0.550 and -0.511, respectively) was also significant (p < 0.001). CONCLUSION The examination of the same cohort of city policemen at the end of a period of high air pollution and at the end of relatively low exposure reduced the effects of age, different lifestyles, different occupational exposures, localities and genetic polymorphism on sperm quality impairment associated with air pollution. This study did not demonstrate impaired standard semen parameters in association with exposure. It was shown that sperm chromatin damage and the percentage of immature sperm were highly sensitive to air pollution.
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Affiliation(s)
- Jiri Rubes
- Department of Genetics and Reproductive Biotechnologies, Central European Institute of Technology-Veterinary Research Institute, Brno, Czech Republic.
| | - Jaroslav Sipek
- Department of Genetics and Reproductive Biotechnologies, Central European Institute of Technology-Veterinary Research Institute, Brno, Czech Republic
| | - Vera Kopecka
- Department of Genetics and Reproductive Biotechnologies, Central European Institute of Technology-Veterinary Research Institute, Brno, Czech Republic
| | - Petra Musilova
- Department of Genetics and Reproductive Biotechnologies, Central European Institute of Technology-Veterinary Research Institute, Brno, Czech Republic
| | - Miluse Vozdova
- Department of Genetics and Reproductive Biotechnologies, Central European Institute of Technology-Veterinary Research Institute, Brno, Czech Republic
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