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Davis OS, Scandlan OLM, Sabry R, Ghaffarzadeh M, Hannam TG, Lagunov A, Favetta LA. High seminal BPA in IVF patients correlates with lower sperm count and up-regulated miR-21 and miR-130a. Reprod Toxicol 2024; 128:108651. [PMID: 38925230 DOI: 10.1016/j.reprotox.2024.108651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/06/2024] [Accepted: 06/22/2024] [Indexed: 06/28/2024]
Abstract
Bisphenol A (BPA) is a widespread industrial chemical, used as the key monomer of polycarbonate plastics and epoxy resins. BPA has been detected in human seminal fluid and has been correlated with changes in sperm parameters, crucial in determining male fertility. In this study, semen samples were collected from 100 patients aged 29-47 years undergoing fertility assessment between 2021 and 2023 and analyzed according to WHO guidelines. BPA levels in the seminal plasma were then measured through an enzyme-linked immunosorbent assay (ELISA) and compared to sperm quality metrics. The relative mRNA/miRNA expression of key genes associated to male reproduction, including androgen receptor, miR-34c, miR-21, miR-130a, was then quantified and compared between groups with high or low BPA content. Our results revealed that BPA levels were increased with age and were negatively correlated with sperm counts (p<0.05). The negative correlation remained significant when patients were age-matched. No other relationships between seminal BPA and motility, morphology or DNA fragmentation levels were observed. qPCR analysis showed that androgen receptor mRNA expression was significantly greater in sperm with high seminal BPA (p<0.05). Moreover, we found that the expression of miR-21 and miR-130a was also upregulated in the higher BPA group (p<0.05). These results display a relationship between BPA content in the semen and male fertility parameters, and provide insights into the molecular mechanisms through which BPA may be affecting male reproductive capability. Ultimately, this research can potentially drive changes to guidelines and exposure limits for BPA exposure.
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Affiliation(s)
- Ola S Davis
- Reproductive Health and Biotechnology Lab, Department of Biomedical Sciences, OVC, University of Guelph, Guelph, ON, Canada
| | - Olivia L M Scandlan
- Reproductive Health and Biotechnology Lab, Department of Biomedical Sciences, OVC, University of Guelph, Guelph, ON, Canada
| | - Reem Sabry
- Reproductive Health and Biotechnology Lab, Department of Biomedical Sciences, OVC, University of Guelph, Guelph, ON, Canada
| | | | | | | | - Laura A Favetta
- Reproductive Health and Biotechnology Lab, Department of Biomedical Sciences, OVC, University of Guelph, Guelph, ON, Canada.
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2
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Jeseta M, Kalina J, Franzova K, Fialkova S, Hosek J, Mekinova L, Crha I, Kempisty B, Ventruba P, Navratilova J. Cross sectional study on exposure to BPA and its analogues and semen parameters in Czech men. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123445. [PMID: 38325504 DOI: 10.1016/j.envpol.2024.123445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/09/2024]
Abstract
Exposure to bisphenols has been found to have adverse effects on male reproductive function in animals. Human exposure to bisphenols is widespread. Bisphenol A (BPA) and its analogues, including bisphenol S (BPS), bisphenol F (BPF), and bisphenol AF (BPAF) are utilized in various consumer products such as food contact materials and dental resins. The effects of these compounds on male fertility and spermatogenesis are unclear and findings from human studies are inconsistent. In this cross-sectional study, we evaluated the influence of BPA, BPS, BPF, BPAF (BPs) measured in semen on number of spermatozoa, total motility, progressive motility, morphology, and DNA fragmentation. We also examined the association of bisphenols (BPs) exposure with patients' occupation. A total of 358 patients aged 17-62 years with BMI 18-42 were included in the study from 2019 to 2021. BPs were extracted using solvent extraction followed by preconcentration step and determined by high-performance liquid chromatography and tandem mass spectrometry (LC/MSMS). Bisphenols were detected in 343 from 349 analysed samples (98.3% of all the samples). In 6 samples, the concentration of all BPs was under the limit of detection and in 20 samples under the limit of quantification. We did not find a statistically significant relationship between occupation and BPs. However, we observed significant correlations between the concentration of BPA and a lower motility and normal morphology. For BPS, a significant correlation with a lower ejaculate volume and a lower total sperm count was found. BPF and BPAF were detected only in 14.3% and 23.9% of samples, respectively. For BPF and BPAF, no significant correlations with spermiogram parameters were observed. Our results show that BPs are widespread in the male population (more than 90% of analysed samples), independently of an occupation and in case of BPA and BPS having a negative impact on spermiogram parameters.
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Affiliation(s)
- Michal Jeseta
- Department of Gynecology and Obstetrics, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic; Department of Veterinary Sciences, Czech University of Life Sciences in Prague, Czech Republic.
| | - Jiri Kalina
- RECETOX Centre, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Katerina Franzova
- Department of Gynecology and Obstetrics, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Sandra Fialkova
- RECETOX Centre, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Jan Hosek
- Veterinary Research Institute, Hudcova 70, Brno, Czech Republic; Department of Molecular Pharmacy, Faculty of Pharmacy, Masaryk University, Brno, Czech Republic
| | - Lenka Mekinova
- Department of Gynecology and Obstetrics, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Igor Crha
- Department of Gynecology and Obstetrics, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic; Department of Health Sciences, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Bartosz Kempisty
- Institute of Veterinary Medicine, Nicolaus Copernicus University, Torun, Poland; Department of Human Morphology and Embryology, Wroclaw Medical University, Poland; Physiology Graduate Faculty, North Carolina State University, Raleigh NC, USA
| | - Pavel Ventruba
- Department of Gynecology and Obstetrics, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Jana Navratilova
- RECETOX Centre, Faculty of Science, Masaryk University, Brno, Czech Republic
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Huang PC, Chou WC. Unveiling the Hidden Dangers of Plasticizers: A Call for Immediate Action. TOXICS 2023; 11:527. [PMID: 37368627 DOI: 10.3390/toxics11060527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023]
Abstract
Over the last several decades, plasticizers have seamlessly integrated themselves into our daily routines, permeating a vast array of commonly encountered products such as food containers, toys, medicines, building materials, electronic devices, cosmetics, perfumes, and personal care items [...].
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Affiliation(s)
- Po-Chin Huang
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli 350, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung 701, Taiwan
| | - Wei-Chun Chou
- Department of Environmental and Global Health, College of Public Health and Health Professions (PHHP), University of Florida, Gainesville, FL 326, USA
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Žalmanová T, Hošková K, Prokešová Š, Nevoral J, Ješeta M, Benc M, Yi YJ, Moravec J, Močáryová B, Martínková S, Fontana J, Elkalaf M, Trnka J, Žáková J, Petr J. The bisphenol S contamination level observed in human follicular fluid affects the development of porcine oocytes. Front Cell Dev Biol 2023; 11:1145182. [PMID: 37091980 PMCID: PMC10115966 DOI: 10.3389/fcell.2023.1145182] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 03/28/2023] [Indexed: 04/08/2023] Open
Abstract
Bisphenol S (BPS), the main replacement for bisphenol A (BPA), is thought to be toxic, but limited information is available on the effects of Bisphenol S on ovarian follicles. In our study, we demonstrated the presence of Bisphenol S in the follicular fluid of women at a concentration of 22.4 nM. The effect of such concentrations of Bisphenol S on oocyte maturation and subsequent embryo development is still unknown. Therefore, we focused on the effect of Bisphenol S on in vitro oocyte maturation, fertilization, and embryo development. As a model, we used porcine oocytes, which show many physiological similarities to human oocytes. Oocytes were exposed to Bisphenol S concentrations similar to those detected in female patients in the ART clinic. We found a decreased ability of oocytes to successfully complete meiotic maturation. Mature oocytes showed an increased frequency of meiotic spindle abnormalities and chromosome misalignment. Alarming associations of oocyte Bisphenol S exposure with the occurrence of aneuploidy and changes in the distribution of mitochondria and mitochondrial proteins were demonstrated for the first time. However, the number and quality of blastocysts derived from oocytes that successfully completed meiotic maturation under the influence of Bisphenol S was not affected.
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Affiliation(s)
- Tereza Žalmanová
- Department of Biology of Reproduction, Institute of Animal Science, Prague, Czechia
- *Correspondence: Tereza Žalmanová,
| | - Kristýna Hošková
- Department of Biology of Reproduction, Institute of Animal Science, Prague, Czechia
| | - Šárka Prokešová
- Department of Biology of Reproduction, Institute of Animal Science, Prague, Czechia
| | - Jan Nevoral
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czechia
- Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czechia
| | - Michal Ješeta
- Department of Obstetrics and Gynecology, Faculty of Medicine, Masaryk University and University Hospital Brno, Brno, Czechia
| | - Michal Benc
- Department of Biology of Reproduction, Institute of Animal Science, Prague, Czechia
- Faculty of Natural Sciences and Informatics, Constantine the Philosopher University of Nitra, Nitra, Slovakia
| | - Young-Joo Yi
- Department of Agricultural Education, College of Education, Sunchon National University, Suncheon, Republic of Korea
| | - Jiří Moravec
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czechia
| | - Beáta Močáryová
- Department of Biology of Reproduction, Institute of Animal Science, Prague, Czechia
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Prague, Czechia
| | - Stanislava Martínková
- Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czechia
- Centre for Research on Diabetes, Metabolism and Nutrition, Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Josef Fontana
- Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czechia
- Centre for Research on Diabetes, Metabolism and Nutrition, Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Moustafa Elkalaf
- Department of Pathophysiology, Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Jan Trnka
- Department of Biochemistry, Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czechia
- Centre for Research on Diabetes, Metabolism and Nutrition, Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Jana Žáková
- Department of Obstetrics and Gynecology, Faculty of Medicine, Masaryk University and University Hospital Brno, Brno, Czechia
| | - Jaroslav Petr
- Department of Biology of Reproduction, Institute of Animal Science, Prague, Czechia
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Yu H, Liu Y. Impact of Extended and Combined Exposure of Bisphenol Compounds on Their Chromosome-Damaging Effect─Increased Potency and Shifted Mode of Action. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:498-508. [PMID: 36571243 DOI: 10.1021/acs.est.2c06064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Bisphenol (BP) compounds are important environmental pollutants and endocrine disruptors. BPs are capable of inducing DNA/chromosome breaks (clastogenesis, involved in carcinogenesis), which requires activation by human CYP1A1. We hypothesized that combined BPs and extended (from the standard two-cell cycle) exposure may enhance their genotoxicity via modulating CYP enzymes. In this study, individual and combined BPA/BPF/BPS/BPAF and a human hepatoma (HepG2) cell line were used for testing several genotoxicity end points. Exposing for a two-cell cycle period (48 h), each BP alone (0.625-10 μM) was negative in the micronucleus test, while micronucleus was formed under three- (72 h) and four-cell cycle (96 h) exposure; BP combinations further elevated the potency (with nanomolar thresholds). Immunofluorescence analysis of the centromere with formed micronucleus indicated that 48 h exposure produced centromere-negative micronucleus and phosphorylated histone H2AX (γ-H2AX) (evidencing clastogenesis), while extended (72 and 96 h) exposure formed centromere-positive micronucleus and phosphorylated histone H3 (p-H3) (indicating chromosome loss, i.e., aneugenesis); moreover, 1-aminotriabenzotriazole (CYP inhibitor) selectively blocked the formation of centromere-negative micronucleus and γ-H2AX, without affecting that of centromere-positive micronucleus and p-H3. This study suggests that the genotoxicity of BPs is potentiated by combined and extended exposure, the latter being specific for aneuploidy formation, a CYP activity-independent effect.
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Affiliation(s)
- Hang Yu
- Department of Toxicology, School of Public Health (Guangdong Provincial Key Laboratory of Tropical Disease Research), Southern Medical University, 1023 S. Shatai Road, Guangzhou 510515, China
| | - Yungang Liu
- Department of Toxicology, School of Public Health (Guangdong Provincial Key Laboratory of Tropical Disease Research), Southern Medical University, 1023 S. Shatai Road, Guangzhou 510515, China
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From Oxidative Stress to Male Infertility: Review of the Associations of Endocrine-Disrupting Chemicals (Bisphenols, Phthalates, and Parabens) with Human Semen Quality. Antioxidants (Basel) 2022; 11:antiox11081617. [PMID: 36009337 PMCID: PMC9405245 DOI: 10.3390/antiox11081617] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
Exposure to endocrine-disrupting chemicals (EDCs) may result in oxidative stress and endocrine system disturbance, which can have an impact on human reproduction and development. In male reproductive health, EDCs have been related to impaired reproductive function and male infertility, altered fetal development, and testicular germ-cell, prostate, and breast cancers. We conducted an electronic search using PubMed on endocrine disruptors related to oxidative stress and male infertility, and evaluated their association with endocrine-disrupting chemicals (bisphenols, phthalates, and parabens) in 25 articles. Higher levels of urinary bisphenols showed correlation with impaired semen quality and increased DNA damage. Considering phthalates and their metabolites, all studies found a positive association between urinary levels of phthalates and at least one semen parameter indicative of low semen quality; some studies also revealed sperm DNA damage. The studies on parabens less often revealed correlation of urinary parabens concentrations with a decrease in sperm count, as well as motility and DNA damage. Moreover, EDCs can elevate ROS production and lipid peroxidation, increase apoptosis, induce epigenetic modifications, and change the Y:X sperm chromosome ratio and sperm protein composition. Our review revealed detrimental effects of EDCs on semen quality and sperm DNA integrity-especially in BPA and phthalates, but also in parabens.
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