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Lu L, Cheng Y, Wu W, Wang L, Li S, Li Q, Chen L, Zhang J, Chen R, Tan X, Hong Y, Yang L, Song Y. Paternal p,p'-DDE exposure and pre-pubertal high-fat diet increases the susceptibility to fertility impairment and sperm Igf2 DMR2 hypo-methylation in male offspring. Ecotoxicol Environ Saf 2024; 271:115999. [PMID: 38262096 DOI: 10.1016/j.ecoenv.2024.115999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/12/2024] [Accepted: 01/17/2024] [Indexed: 01/25/2024]
Abstract
The hypothesis of paternal origins of health and disease (POHaD) indicates that paternal exposure to adverse environment could alter the epigenetic modification in germ line, increasing the disease susceptibility in offspring or even in subsequent generations. p,p'-Dichlorodiphenyldichloroethylene (p,p'-DDE) is an anti-androgenic chemical and male reproductive toxicant. Gestational p,p'-DDE exposure could impair reproductive development and fertility in male offspring. However, the effect of paternal p,p'-DDE exposure on fertility in male offspring remains uncovered. From postnatal day (PND) 35 to 119, male rats (F0) were given 10 mg/body weight (b.w.) p,p'-DDE or corn oil by gavage. Male rats were then mated with the control females to generate male offspring. On PND35, the male offspring were divided into 4 groups according whether to be given the high-fat diet (HF): corn oil treatment with control diet (C-C), p,p'-DDE treatment with control diet (DDE-C), corn oil treatment with high-fat diet (C-HF) or p,p'-DDE treatment with high-fat diet (DDE-HF) for 35 days. Our results indicated that paternal p,p'-DDE exposure did not affect the male fertility of male offspring directly, but decreased sperm quality and induced testicular apoptosis after the high-fat diet treatment. Further analysis demonstrated that paternal exposure to p,p'-DDE and pre-pubertal high-fat diet decreased sperm Igf2 DMR2 methylation and gene expression in male offspring. Hence, paternal exposure to p,p'-DDE and pre-pubertal high-fat diet increases the susceptibility to male fertility impairment and sperm Igf2 DMR2 hypo-methylation in male offspring, posing a significant implication in the disease etiology.
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Affiliation(s)
- Liping Lu
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Yuzhou Cheng
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Wei Wu
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Lijun Wang
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Shuqi Li
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Qianyu Li
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Liangjing Chen
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Jianyun Zhang
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Rong Chen
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Xiaohua Tan
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Yu Hong
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Lei Yang
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China
| | - Yang Song
- School of Public Health, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou, China.
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Sun Y, Zhang W, Li Y, Zhu J, Liu C, Luo L, Liu J, Zhang C. Multigenerational genetic effects of paternal cadmium exposure on ovarian granulosa cell apoptosis. Ecotoxicol Environ Saf 2023; 262:115123. [PMID: 37315360 DOI: 10.1016/j.ecoenv.2023.115123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/20/2023] [Accepted: 06/07/2023] [Indexed: 06/16/2023]
Abstract
To explore whether paternal cadmium (Cd) exposure causes ovarian granulosa cell (GC) apoptosis in offspring and the multigenerational genetic effects. From postnatal day 28 (PND28) until adulthood (PND56), SPF male Sprague-Dawley (SD) rats were gavaged daily with varying concentrations of CdCl2. (0, 0.5, 2, and 8 mg/kg). After treatment, the F1 generation was produced by mating with untreated female rats, and the F1 generation male rats were mated with untreated female rats to produce the F2 generation. Apoptotic bodies (electron microscopy) and significantly higher apoptotic rates (flow cytometry) were observed in both F1 and F2 ovarian GCs following paternal Cd exposure. Moreover, the mRNA (qRTPCR) or protein (Western blotting) levels of bax, bcl2, bcl-xl, caspase 3, caspase 8, and caspase 9 were changed to varying degrees. Apoptosis-related miRNAs (qRTPCR) and methylation modifications of apoptosis-related genes (bisulfite-sequencing PCR) in ovarian GCs were further detected. Compared with those of controls, the expression patterns of miRNAs in F1 and F2 offspring were different after paternal Cd exposure, while the average methylation level of apoptosis-related genes did not change significantly (except for individual loci). In summary, there are paternal genetic intergenerational and transgenerational effects on ovarian GC apoptosis induced by paternal Cd exposure. These genetic effects were related to the upregulation of BAX, BCL-XL, Cle-CASPASE 3, and Cle-CASPASE 9 in F1 and the upregulation of Cle-CASPASE 3 in F2 progeny. Important changes in apoptosis-related miRNAs were also observed.
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Affiliation(s)
- Yi Sun
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China; Key Laboratory of Environment and Female Reproductive Health, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Wenchang Zhang
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China.
| | - Yuchen Li
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Jianlin Zhu
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Chenchen Liu
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Lingfeng Luo
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Jin Liu
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environmental Factors and Cancer, Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Chenyun Zhang
- School of Health Management, Fujian Medical University, Fuzhou 350122, Fujian Province, China.
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Shi Q, Qi K. Developmental origins of health and disease: Impact of paternal nutrition and lifestyle. Pediatr Investig 2023; 7:111-131. [PMID: 37324600 PMCID: PMC10262906 DOI: 10.1002/ped4.12367] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 01/29/2023] [Indexed: 09/20/2023] Open
Abstract
Most epidemiological and experimental studies have focused on maternal influences on offspring's health. The impact of maternal undernutrition, overnutrition, hypoxia, and stress is linked to adverse offspring outcomes across a range of systems including cardiometabolic, respiratory, endocrine, and reproduction among others. During the past decade, it has become evident that paternal environmental factors are also linked to the development of diseases in offspring. In this article, we aim to outline the current understanding of the impact of male health and environmental exposure on offspring development, health, and disease and explore the mechanisms underlying the paternal programming of offspring health. The available evidence suggests that poor paternal pre-conceptional nutrition and lifestyle, and advanced age can increase the risk of negative outcomes in offspring, via both direct (genetic/epigenetic) and indirect (maternal uterine environment) effects. Beginning at preconception, and during utero and the early life after birth, cells acquire an epigenetic memory of the early exposure which can be influential across the entire lifespan and program a child's health. Potentially not only mothers but also fathers should be advised that maintaining a healthy diet and lifestyle is important to improve offspring health as well as the parental health status. However, the evidence is mostly based on animal studies, and well-designed human studies are urgently needed to verify findings from animal data.
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Affiliation(s)
- Qiaoyu Shi
- Laboratory of Nutrition and Development, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's HospitalCapital Medical University, National Center for Children's HealthBeijingChina
| | - Kemin Qi
- Laboratory of Nutrition and Development, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's HospitalCapital Medical University, National Center for Children's HealthBeijingChina
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Liu J, Shi J, Hernandez R, Li X, Konchadi P, Miyake Y, Chen Q, Zhou T, Zhou C. Paternal phthalate exposure-elicited offspring metabolic disorders are associated with altered sperm small RNAs in mice. Environ Int 2023; 172:107769. [PMID: 36709676 DOI: 10.1016/j.envint.2023.107769] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/11/2023] [Accepted: 01/18/2023] [Indexed: 05/10/2023]
Abstract
Exposure to ubiquitous plastic-associated endocrine disrupting chemicals (EDCs) is associated with the increased risk of many chronic diseases. For example, phthalate exposure is associated with cardiometabolic mortality in humans, with societal costs ∼ $39 billion/year or more. We recently demonstrated that several widely used plastic-associated EDCs increase cardiometabolic disease in appropriate mouse models. In addition to affecting adult health, parental exposure to EDCs has also been shown to cause metabolic disorders, including obesity and diabetes, in the offspring. While most studies have focused on the impact of maternal EDC exposure on the offspring's health, little is known about the effects of paternal EDC exposure. In the current study, we investigated the adverse impact of paternal exposure to a ubiquitous but understudied phthalate, dicyclohexyl phthalate (DCHP) on the metabolic health of F1 and F2 offspring in mice. Paternal DCHP exposure led to exacerbated insulin resistance and impaired insulin signaling in F1 offspring without affecting diet-induced obesity. We previously showed that sperm small non-coding RNAs including tRNA-derived small RNAs (tsRNAs) and rRNA-derived small RNAs (rsRNAs) contribute to the intergenerational transmission of paternally acquired metabolic disorders. Using a novel PANDORA-seq, we revealed that DCHP exposure can lead to sperm tsRNA/rsRNA landscape changes that were undetected by traditional RNA-seq, which may contribute to DCHP-elicited adverse effects. Lastly, we found that paternal DCHP can also cause sex-specific transgenerational adverse effects in F2 offspring and elicited glucose intolerance in female F2 descendants. Our results suggest that exposure to endocrine disrupting phthalates may have intergenerational and transgenerational adverse effects on the metabolic health of their offspring. These findings increase our understanding of the etiology of chronic human diseases originating from chemical-elicited intergenerational and transgenerational effects.
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Affiliation(s)
- Jingwei Liu
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, CA 92521, United States
| | - Junchao Shi
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, CA 92521, United States
| | - Rebecca Hernandez
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, CA 92521, United States
| | - Xiuchun Li
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, CA 92521, United States
| | - Pranav Konchadi
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, CA 92521, United States
| | - Yuma Miyake
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, CA 92521, United States
| | - Qi Chen
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, CA 92521, United States
| | - Tong Zhou
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, NV 89557, United States
| | - Changcheng Zhou
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, CA 92521, United States.
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Ibarra Barrueta O, García Martín E, López Sánchez P, Ramírez Herráiz E, Merino Bohórquez V, Ais Larisgoitia A. Biological and immunosuppressive medications in pregnancy, breastfeeding and fertility in immune mediated diseases. Farm Hosp 2023; 47:39-49. [PMID: 36710223 DOI: 10.1016/j.farma.2022.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 08/12/2022] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVE The objective of this review is to gather the available evidence on the different drugs used in immune-mediated inflammatory diseases in pregnancy, lactation, their influence on female and male fertility, advice on discontinuation before conception and to help in routine clinical practice for better patient advice on family planning. METHODS A bibliographic search was carried out, where published articles (review studies, observational studies and case series) in English or Spanish until April 2020 that analyzed the management of pregnancy, lactation and/or fertility in patients on treatment in immune-mediated diseases were selected. RESULTS A total of 95 references were selected and the information on each drug was synthesized in tables. Drugs contraindicated in pregnancy are topical retinoids, pimecrolimus, cyclooxygenase 2 inhibitors, methotrexate, mycophenolate mofetil, leflunomide, acitretin, and thiopurines. The lack of data advises against the use of apremilast, tofacitinib, baricitinib, anakinra, abatacept, tocilizumab and the new biologicals. Topical salicylates, paracetamol, ultraviolet therapy and hydroxychloroquine treatment are safe, and anti-TNF biological therapy are considered low risk, with certolizumab being the drug of choice throughout pregnancy and lactation. Most are compatible with paternal exposure except for sulfasalazine, mycophenolate and leflunomide, for which suspension of treatment prior to conception is recommended, and cyclosporine with dose requirements of less than 2mg/kg/day. CONCLUSIONS In this context of chronic treatments with teratogenic potential, it is necessary to highlight the importance of pregnancy planning to select the safest drug. Given the quality of the available data, it is still necessary to continuously update the information, as well as to promote observational studies of cohorts of pregnant patients and men of childbearing age, including prospective studies, in order to generate more scientific evidence.
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Ibarra Barrueta O, García Martín E, López Sánchez P, Ramírez Herráiz E, Merino Bohórquez V, Ais Larisgoitia A. [Translated article] Biological and immunosuppressive medications in pregnancy, breastfeeding and fertility in immune mediated diseases. Farm Hosp 2023; 47:T39-T49. [PMID: 36732114 DOI: 10.1016/j.farma.2022.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 08/12/2022] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE The objective of this review is to gather the available evidence on the different drugs used in immune-mediated inflammatory diseases in pregnancy, lactation, their influence on female and male fertility, advice on discontinuation before conception and to help in routine clinical practice for better patient advice on family planning. METHODS A bibliographic search was carried out, where published articles (review studies, observational studies and case series) in English or Spanish until April 2020 that analyzed the management of pregnancy, lactation and/or fertility in patients on treatment in immune-mediated diseases were selected. RESULTS A total of 95 references were selected and the information on each drug was synthesized in tables. Drugs contraindicated in pregnancy are topical retinoids, pimecrolimus, cyclooxygenase 2 inhibitors, methotrexate, mycophenolate mofetil, leflunomide, acitretin, and thiopurines. The lack of data advises against the use of apremilast, tofacitinib, baricitinib, anakinra, abatacept, tocilizumab and the new biologicals. Topical salicylates, paracetamol, ultraviolet therapy and hydroxychloroquine treatment are safe, and anti-TNF biological therapy are considered low risk, with certolizumab being the drug of choice throughout pregnancy and lactation. Most are compatible with paternal exposure except for sulfasalazine, mycophenolate and leflunomide, for which suspension of treatment prior to conception is recommended, and cyclosporine with dose requirements of less than 2 mg/kg/day. CONCLUSIONS In this context of chronic treatments with teratogenic potential, it is necessary to highlight the importance of pregnancy planning to select the safest drug. Given the quality of the available data, it is still necessary to continuously update the information, as well as to promote observational studies of cohorts of pregnant patients and men of childbearing age, including prospective studies, in order to generate more scientific evidence.
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Affiliation(s)
- Olatz Ibarra Barrueta
- Servicio de Farmacia, Hospital Universitario Galdakao-Usansolo, Galdakao, Bizkaia, España
| | - Estela García Martín
- Servicio de Farmacia, Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain.
| | - Piedad López Sánchez
- Servicio de Farmacia, Hospital General de Tomelloso, Tomelloso (Ciudad Real), Spain
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Lee YM, Kim Y, Park H, Hong YC, Ha M, Kim YJ, Ha EH. Association of paternal cadmium and other heavy metal exposure to birth outcomes using propensity score matching. Chemosphere 2023; 311:136792. [PMID: 36272631 DOI: 10.1016/j.chemosphere.2022.136792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/16/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Human exposure to cadmium has various effects on health, especially on male reproductive organs. Although it is widely known that prenatal maternal cadmium exposure can affect birth outcomes, the effect of paternal exposure to cadmium remains unclear. OBJECTIVES This study aimed to evaluate the effect of paternal cadmium exposure on fetal growth by considering maternal cadmium exposure and exposure to other heavy metals, namely mercury and lead. METHODS The Mothers and Children's Environmental Health (MOCEH) study is a prospective birth cohort study in Korea. Overall, 1313 families (father-mother-child triple) without child abnormalities and who completed paternal whole blood cadmium assessments were included in this study. Families were divided into two subgroups based on the blood sampling periods, namely early and late pregnancy. Subjects were selected as follows: one family triple with a high level of paternal cadmium and two triples with low levels of paternal cadmium, using the method of propensity score matching. And linear regression analyses were performed. RESULTS The group with high paternal cadmium exposure (80% or more; 1.93 μg/L) had lower birth weight infants compared to the group with low cadmium concentrations (β(se) = -0.21(0.10); p-value = 0.0283). After stratification by infant sex, prenatal paternal cadmium exposure significantly reduced the birth weight of females in subgroups of different sampling times, namely early pregnancy (β(se) = -0.52 (0.22); p-value = 0.0170) and late pregnancy (β(se) = -0.43 (0.18); p-value = 0.0160). Finally, after performing propensity score matching in the early pregnancy measurement group, it was found that the prenatal exposure of father to cadmium significantly reduced birth weight in females (β(se) = -0.72(0.25); p-value = 0.0047). CONCLUSION This study assessed the effect of paternal cadmium exposure on birth outcomes in family units consisting of a father, mother, and child. Prenatal paternal cadmium exposure negatively affected birth weight, especially that of female, considering covariates and other heavy metals exposure, namely mercury and lead.
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Affiliation(s)
- Yu Min Lee
- Department of Occupational and Environmental Medicine, Severance Hospital, Seoul, Republic of Korea
| | - Yangho Kim
- Department of Occupational and Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Hyesook Park
- Department of Preventive Medicine, College of Medicine, Ewha Medical Research Center, Ewha Womans University, Seoul, Republic of Korea; Graduate Program in System Health Science and Engineering, Ewha Womans University, Republic of Korea
| | - Yun-Chul Hong
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Mina Ha
- Department of Preventive Medicine, College of Medicine, Dankook University, Cheonan, Republic of Korea
| | - Young Ju Kim
- Department of Obstetrics and Gynecology, College of Medicine, Ewha Womans University, Seoul, Republic of Korea
| | - Eun Hee Ha
- Graduate Program in System Health Science and Engineering, Ewha Womans University, Republic of Korea; Department of Environmental Medicine, College of Medicine, Ewha Womans University, Seoul, Republic of Korea
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Forster F, Heumann C, Schaub B, Böck A, Nowak D, Vogelberg C, Radon K. Parental occupational exposures prior to conception and offspring wheeze and eczema during first year of life. Ann Epidemiol 2023; 77:90-97. [PMID: 36476404 DOI: 10.1016/j.annepidem.2022.11.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 11/22/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022]
Abstract
PURPOSE Parental exposures prior to conception might influence asthma and allergy risk in offspring. As occupational exposures are established risk factors for asthma and allergies, we investigated if parental occupational exposures prior to conception cause wheeze and eczema in offspring during the first year of life. METHODS We analysed data of 436 families from an offspring cohort based on a follow-up study of German participants of the International Study of Asthma and Allergies in Childhood (ISAAC). Offspring cohort data was collected between 2009 and 2019. Occupational exposures were based on participants' work histories and measured by a Job-Exposure-Matrix. We used Bayesian logistic regression models for analysis. Inference and confounder selection were based on directed acyclic graphs. RESULTS In mothers, for both allergic and irritative occupational exposures prior to conception suggestive effects on offspring eczema during the first year of life were found (allergens: odds ratio (OR) 1.22, 95% compatibility interval (CI) 0.92-1.57; irritants: OR 1.36, 95% CI 0.99-1.77), while no relation with wheeze was suggested. CONCLUSIONS Our results suggest that reduction of asthma-related occupational exposures might not only reduce the burden of disease for occupationally induced or aggravated asthma and allergies in employees but also in their children.
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Affiliation(s)
- Felix Forster
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Munich, Germany.
| | | | - Bianca Schaub
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany; Comprehensive Pneumology Center (CPC) Munich, German Center for Lung Research (DZL), Munich, Germany
| | - Andreas Böck
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
| | - Dennis Nowak
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Munich, Germany; Comprehensive Pneumology Center (CPC) Munich, German Center for Lung Research (DZL), Munich, Germany
| | - Christian Vogelberg
- Department of Pediatrics, University Hospital Dresden, Technical University, Dresden, Germany
| | - Katja Radon
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Munich, Germany; Comprehensive Pneumology Center (CPC) Munich, German Center for Lung Research (DZL), Munich, Germany
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Redmond LS, Kaufman JA, Terrell ML, Pearson MA, Barton H, Tomlinson MS, Marcus M. Birth outcomes associated with paternal polybrominated and polychlorinated biphenyl exposure. Environ Res 2022; 214:114215. [PMID: 36041536 PMCID: PMC9930206 DOI: 10.1016/j.envres.2022.114215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 08/20/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
In 1973-74, a polybrominated biphenyl (PBB) flame retardant mixture was shipped to Michigan livestock feed mills in place of a nutritional supplement and contaminated the food supply. Following the accident, the Michigan PBB Registry was established to study the long-term health effects of halogenated compounds and is now led by a community-academic partnership. PBB exposure is associated with altered DNA methylation in sperm, which may lead to adverse birth outcomes in children whose fathers have increased levels of serum PBB or polychlorinated biphenyl (PCB). Paternal PBB and PCB levels of men enrolled in the Michigan PBB Registry (n = 155) were analyzed against matched offspring birthweight and gestational age (n = 336). Birthweight and gestational age were dichotomized at the 25th percentile and 37 weeks, respectively, and paternal PBB and PCB levels were examined as continuous measures and divided into tertiles. Associations of offspring birthweight and gestational age with paternal PBB and PCB serum concentrations were modeled using multivariable linear spline and log-risk regression, adjusting for family clustering, paternal health and lifestyle factors, maternal PBB, and PCB serum concentrations, sex, and offspring gestational age (for birthweight). Fathers in the middle and upper PBB and PCB tertiles had increased risks for lowest quartile birthweight compared to the first tertile, with adjusted risk ratios (aRR) = 1.67 (95% CI: 0.93, 2.99) and aRR = 2.06 (95% CI: 1.12, 3.79) for PBB, and aRR = 1.47 (95% CI: 0.79, 2.75) and aRR = 1.34 (95% CI: 0.70, 2.54) for PCB, respectively. Elevated paternal PBB levels were not associated with an increased risk for preterm birth, while PCB levels were associated with a small, but not significant, decrease in gestational age, β = -0.37 (95% CI: -0.76, 0.03) weeks per log unit increase PCB. The findings suggest that increased paternal PBB and PCB levels negatively impact offspring birthweight, and paternal PCB levels may negatively impact gestational age.
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Affiliation(s)
- Lawrence S Redmond
- Department of Epidemiology, Rollins School of Public Health, Emory University, 1518 Clifton Rd, Atlanta, GA, 30322, USA.
| | - John A Kaufman
- Department of Epidemiology, Rollins School of Public Health, Emory University, 1518 Clifton Rd, Atlanta, GA, 30322, USA
| | - Metrecia L Terrell
- Department of Epidemiology, Rollins School of Public Health, Emory University, 1518 Clifton Rd, Atlanta, GA, 30322, USA
| | - Melanie A Pearson
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, 1518 Clifton Rd, Atlanta, GA, 30322, USA
| | - Hillary Barton
- Department of Epidemiology, Rollins School of Public Health, Emory University, 1518 Clifton Rd, Atlanta, GA, 30322, USA
| | - Martha Scott Tomlinson
- Department of Epidemiology, Rollins School of Public Health, Emory University, 1518 Clifton Rd, Atlanta, GA, 30322, USA
| | - Michele Marcus
- Department of Epidemiology, Rollins School of Public Health, Emory University, 1518 Clifton Rd, Atlanta, GA, 30322, USA
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Bemanalizadeh M, Khoshhali M, Goli P, Abdollahpour I, Kelishadi R. Parental Occupational Exposure and Neurodevelopmental Disorders in Offspring: a Systematic Review and Meta-analysis. Curr Environ Health Rep 2022; 9:406-422. [PMID: 35522387 DOI: 10.1007/s40572-022-00356-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2022] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW Parental occupational exposures might be associated with neurodevelopmental disorders (NDDs) in offspring. We aimed to conduct a systematic review and meta-analysis to summarize and synthesize the current literature and to estimate the pooled magnitude of the underlying association(s) between parental occupational exposures and subsequent risk of NDDs. RECENT FINDINGS In the meta-analysis of 20 included studies, significant associations were found between parental occupational exposure to pesticides or solvents and the risk of attention deficit hyperactivity disorder in offspring. Prenatal occupational exposure to pesticides was significantly associated with motor development or cognition disorders in children. Furthermore, some evidence showed that metals might have a role in the development of autism spectrum disorders. Further studies need to identify the level of parental occupational exposures that can be significantly associated with NDDs. Moreover, utilizing standardized outcome and exposure scales is recommended to incorporate paternal, maternal, and parental as well as both prenatal and postnatal exposure in future studies.
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Affiliation(s)
- Maryam Bemanalizadeh
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehri Khoshhali
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parvin Goli
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ibrahim Abdollahpour
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Roya Kelishadi
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
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Liu Y, Chen S, Pang D, Zhou J, Xu X, Yang S, Huang Z, Yu B. Effects of paternal exposure to cigarette smoke on sperm DNA methylation and long-term metabolic syndrome in offspring. Epigenetics Chromatin 2022; 15:3. [PMID: 35063005 PMCID: PMC8780762 DOI: 10.1186/s13072-022-00437-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 01/06/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Although paternal exposure to cigarette smoke may contribute to obesity and metabolic syndrome in offspring, the underlying mechanisms remain uncertain. METHODS In the present study, we analyzed the sperm DNA-methylation profiles in tobacco-smoking normozoospermic (SN) men, non-tobacco-smoking normozoospermic (N) men, and non-smoking oligoasthenozoospermic (OA) men. Using a mouse model, we also analyzed global methylation and differentially methylated regions (DMRs) of the DLK1 gene in paternal spermatozoa and the livers of progeny. In addition, we quantified DLK1 expression, executed an intra-peritoneal glucose tolerance test (IPGTT), measured serum metabolites, and analyzed liver lipid accumulation in the F1 offspring. RESULTS Global sperm DNA-methylation levels were significantly elevated (p < 0.05) in the SN group, and the methylation patterns were different among N, SN, and OA groups. Importantly, the methylation level of the DLK1 locus (cg11193865) was significantly elevated in the SN group compared to both N and OA groups (p < 0.001). In the mouse model, the group exposed to cigarette smoke extract (CSE) exhibited a significantly higher global methylation DNA level in spermatozoa (p < 0.001) and on the DMR sites of Dlk1 in 10-week-old male offspring (p < 0.05), with a significant increase in Dlk1 expression in their livers (p < 0.001). In addition, IPGTT and LDL levels were significantly altered (p < 0.001), with elevated liver fat accumulation (p < 0.05) in F1 offspring. CONCLUSION Paternal exposure to cigarette smoke led to increased global methylation of sperm DNA and alterations to the DMR of the DLK1 gene in the F1 generation, which may be inherited parentally and may perturb long-term metabolic function.
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Affiliation(s)
- Yunyun Liu
- Department of Obstetrics and Gynecology, BioResource Research Center, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Liwan District, Guangzhou, 510150, Guangdong, China
| | - Shengzhu Chen
- Department of Obstetrics and Gynecology, BioResource Research Center, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Liwan District, Guangzhou, 510150, Guangdong, China
| | - Dejian Pang
- Department of Obstetrics and Gynecology, BioResource Research Center, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Liwan District, Guangzhou, 510150, Guangdong, China
| | - Jiayi Zhou
- Department of Obstetrics and Gynecology, BioResource Research Center, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Liwan District, Guangzhou, 510150, Guangdong, China
| | - Xiuting Xu
- Department of Obstetrics and Gynecology, BioResource Research Center, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Liwan District, Guangzhou, 510150, Guangdong, China
| | - Si Yang
- Department of Obstetrics and Gynecology, BioResource Research Center, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Liwan District, Guangzhou, 510150, Guangdong, China
| | - Zhaofeng Huang
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Bolan Yu
- Department of Obstetrics and Gynecology, BioResource Research Center, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, No. 63 Duobao Road, Liwan District, Guangzhou, 510150, Guangdong, China.
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Hu C, Tao Y, Deng Y, Cai Q, Ren H, Yu C, Zheng S, Yang J, Zeng C. Paternal long-term PM2.5 exposure causes hypertension via increased renal AT1R expression and function in male offspring. Clin Sci (Lond) 2021; 135:2575-2588. [PMID: 34779863 PMCID: PMC8628185 DOI: 10.1042/cs20210802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 11/10/2021] [Accepted: 11/15/2021] [Indexed: 01/15/2023]
Abstract
Maternal exposure to fine particulate matter (PM2.5) causes hypertension in offspring. However, paternal contribution of PM2.5 exposure to hypertension in offspring remains unknown. In the present study, male Sprague-Dawley rats were treated with PM2.5 suspension (10 mg/ml) for 12 weeks and/or fed with tap water containing an antioxidant tempol (1 mM/L) for 16 weeks. The blood pressure, 24 h-urine volume and sodium excretion were determined in male offspring. The offspring were also administrated with losartan (20 mg/kg/d) for 4 weeks. The expressions of angiotensin II type 1 receptor (AT1R) and G-protein-coupled receptor kinase type 4 (GRK4) were determined by qRT-PCR and immunoblotting. We found that long-term PM2.5 exposure to paternal rats caused hypertension and impaired urine volume and sodium excretion in male offspring. Both the mRNA and protein expression of GRK4 and its downstream target AT1R were increased in offspring of PM2.5-exposed paternal rats, which was reflected in its function because treatment with losartan, an AT1R antagonist, decreased the blood pressure and increased urine volume and sodium excretion. In addition, the oxidative stress level was increased in PM2.5-treated paternal rats. Administration with tempol in paternal rats restored the increased blood pressure and decreased urine volume and sodium excretion in the offspring of PM2.5-exposed paternal rats. Treatment with tempol in paternal rats also reversed the increased expressions of AT1R and GRK4 in the kidney of their offspring. We suggest that paternal PM2.5 exposure causes hypertension in offspring. The mechanism may be involved that paternal PM2.5 exposure-associated oxidative stress induces the elevated renal GRK4 level, leading to the enhanced AT1R expression and its-mediated sodium retention, consequently causes hypertension in male offspring.
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Affiliation(s)
- Cuimei Hu
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P. R. China
| | - Yu Tao
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P. R. China
| | - Yi Deng
- Department of General Practice Medicine, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Qi Cai
- Department of Cardiology, Fujian Heart Center, Provincial Institute of Coronary Disease, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Hongmei Ren
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P. R. China
| | - Cheng Yu
- Department of Cardiology, Fujian Heart Center, Provincial Institute of Coronary Disease, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Shuo Zheng
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P. R. China
| | - Jian Yang
- Department of Clinical Nutrition, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chunyu Zeng
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, P. R. China
- State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, The Third Military Medical University, Chongqing, China
- Cardiovascular Research Center of Chongqing College, Department of Cardiology of Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China
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Montagnoli C, Ruggeri S, Cinelli G, Tozzi AE, Bovo C, Bortolus R, Zanconato G. Anything New about Paternal Contribution to Reproductive Outcomes? A Review of the Evidence. World J Mens Health 2021; 39:626-644. [PMID: 33474842 PMCID: PMC8443996 DOI: 10.5534/wjmh.200147] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/13/2020] [Accepted: 11/08/2020] [Indexed: 11/15/2022] Open
Abstract
Paternal health and behavioral lifestyles affect reproductive and neonatal outcomes and yet the magnitude of these effects remain underestimated. Even though these impacts have been formally recognized as a central aspect of reproductive health, health care services in Europe often neglect the involvement of fathers in their reproductive programs. Following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines for systematic reviews, a literature search was carried out to assess the possible impact of paternal health on reproductive outcomes. The comprehensive strategy included cohort studies and meta-analysis available on PubMed, Web of Science, CINAHL, and Google scholar. Cross-referencing of bibliographies of the selected papers ensured wider study capture. Paternal factors were grouped into two categories respectively identified with the terms "Biological Paternal Factors" and "Lifestyle Paternal Factors". Advanced age may impair male fertility and affect early pregnancy stages. Increased body mass index, smoking, alcohol and recreational drugs, all alter seminal fluid parameters. Hazardous alcohol use correlates with low birthweight in pregnancy and harmful behavioral lifestyles have been linked to congenital heart defects, metabolic and neurodevelopmental disorders in the offspring. Measures targeting paternal health and lifestyle within the first 1,000 days' timeframe need to be implemented in couples undergoing reproductive decisions. Health professionals, as well as future fathers, must be aware of the benefits for the offspring associated with correct paternal behaviors. More research is needed to build guidelines and to implement specific programs aiming at reproductive health promotion.
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Affiliation(s)
- Caterina Montagnoli
- Department of Medical Direction, Verona University Hospital, Verona, Italy.,Department of Midwifery, Geneva School of Health Sciences, HES-SO University of Applied Sciences and Arts of Western Switzerland, Geneva, Switzerland
| | | | - Giulia Cinelli
- Predictive and Preventive Medicine Research Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Alberto E Tozzi
- Predictive and Preventive Medicine Research Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.
| | - Chiara Bovo
- Department of Medical Direction, Verona University Hospital, Verona, Italy
| | - Renata Bortolus
- Directorate General for Preventive Health - Office 9, Ministry of Health, Rome, Italy
| | - Giovanni Zanconato
- Department of Surgery, Odontostomatology and Maternal and Child Health, University of Verona, Verona, Italy
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Fazekas-Pongor V, Fekete M, Csáky-Szunyogh M, Cseh K, Pénzes M. Parental occupational exposure and congenital heart diseases in a Hungarian case-control study. Int Arch Occup Environ Health 2020; 94:515-527. [PMID: 33170344 PMCID: PMC8032570 DOI: 10.1007/s00420-020-01589-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 10/06/2020] [Indexed: 11/10/2022]
Abstract
Purpose Our study aimed to explore the effect of parental occupational exposure to endocrine disrupting chemicals (EDCs) on the development of congenital heart diseases (CHDs) in the offspring, and to compare job-exposure matrix (JEM)-assessed and self-reported occupational exposures with each other. Methods Live-born infants born in 2007–2008 were selected from the population-based Hungarian Case–Control Surveillance of Congenital Abnormalities Study. 577 cases with any CHDs were compared to 1731 matched controls. Parental periconceptional occupational exposure to EDCs was assessed by a JEM and by questionnaire-based self-reporting of parents. Multivariate conditional logistic regression analyses were conducted to explore associations between parental occupational exposure to EDCs and the entire spectrum of CHDs and by CHD subtypes in the offspring. Kappa statistics were also performed to determine the consistency among JEM-assessed and self-reported occupational exposure of parents. Results JEM-assessed paternal exposure to polychlorinated organic substances, phthalates, biphenolic compounds, and solvents were significantly associated with the entire spectrum of CHDs. Ventricular septal defects were significantly associated with paternal self-reported exposure to pesticides, while atrial septal defects were significantly associated to paternal JEM-assessed phthalate exposure. Paternal solvent exposure was significantly associated with atrial septal defects and right ventricle outflow tract obstructions. JEM-assessed and self-reported exposures to pesticides, heavy metals, and solvents exhibited poor agreement for mothers and slight agreement for fathers. Conclusion Even though parental occupational exposure to EDCs seems to have a minor impact on the occurrence of CHDs, the results of biological and environmental monitoring should be taken into consideration as well.
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Affiliation(s)
- Vince Fazekas-Pongor
- Department of Public Health, Faculty of Medicine, Semmelweis University Budapest, Üllői út 26, Budapest, 1085, Hungary.
| | - Mónika Fekete
- Department of Public Health, Faculty of Medicine, Semmelweis University Budapest, Üllői út 26, Budapest, 1085, Hungary
| | - Melinda Csáky-Szunyogh
- Hungarian Congenital Abnormalities Registry, National Public Health Center, Albert Flórián út 2-6, Budapest, 1097, Hungary
| | - Károly Cseh
- Department of Public Health, Faculty of Medicine, Semmelweis University Budapest, Üllői út 26, Budapest, 1085, Hungary
| | - Melinda Pénzes
- Department of Public Health, Faculty of Medicine, Semmelweis University Budapest, Üllői út 26, Budapest, 1085, Hungary
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Aykan DA, Yaylali A, Eser N, Seyithanoglu M, Yaman S, Aykan AC. The effects of sacubitril/valsartan and ramipril on the male fertility in hypertensive rats. North Clin Istanb 2020; 7:425-32. [PMID: 33163876 DOI: 10.14744/nci.2020.30906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 05/29/2020] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE: Renin angiotensinogen system (RAS) inhibitors, ramipril and sacubitril/valsartan are frequently used in the treatment of cardiovascular diseases. Although they are known as contraindicated during pregnancy in hypertensive women, there is not any outcome of their safety in male fertility after exposure to ramipril or sacubitril/valsartan. In this study, we aimed to evaluate the effects of ramipril and sacubitril/valsartan to highlight their safety in the male fertility in normotensive and hypertensive rats. METHODS: Adult male normotensive and dexamethasone-induced hypertensive rats were treated with sacubitril/valsartan, ramipril and saline for 18 days. Arterial blood pressures were verified using carotid artery cannulation. Male fertility parameters, including the testis weights, histopathologic scoring of the testis, sperm count, sperm motility, morphology, and serum testosterone levels, were analyzed in treated and nontreated normotensive/hypertensive rats. RESULTS: Sacubitril/valsartan or ramipril treatments did not reveal a significant difference in sperm production, testicular morphology, and radioimmunoassay of serum testosterone levels compared to the control group. However, sperm motility was significantly reduced in rats under RAS inhibition. CONCLUSION: This finding was likely mediated by the identification of Ang receptors in the tails of rat sperm given that Ang receptors may play a role in the modulation of sperm motility. Identification of RAS-related proteins involved in sperm motility may help to explain their roles in motility. Our data provide general safety evidence for the male fertilization ability after paternal sacubitril/valsartan and ramipril exposure.
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Bircsak KM, Copes LT, King S, Prantner AM, Hwang WT, Gerton GL. The aryl hydrocarbon receptor mediates sex ratio distortion in the embryos sired by TCDD-exposed male mice. Reprod Toxicol 2020; 94:75-83. [PMID: 32335222 DOI: 10.1016/j.reprotox.2020.04.072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 03/25/2020] [Accepted: 04/15/2020] [Indexed: 10/24/2022]
Abstract
Many reports describe an association between preconceptional paternal exposure to environmental chemicals, including the persistent organic pollutant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) with an increased number of female offspring. We chronically treated wild-type C57BL/6 male mice with TCDD to investigate a role for the aryl hydrocarbon receptor (AHR) transcription factor. These mice had a 14 % lower male:female sex ratio than control mice, which was not observed in TCDD-treated Ahr knock out mice. AHR target genes Cyp1a1 and Ahrr were upregulated in the liver and testis of WT mice and Ahr expression was higher in the epididymis (2-fold) and liver (18-fold) than in whole testis tissue. The AHR protein was localized to round spermatids, elongating spermatids, and Leydig cells in the testis of WT mice. These studies demonstrate AHR involvement in the sex ratio distortion of TCDD-exposed males and the need for evaluating the molecular and genetic mechanism of this process.
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Affiliation(s)
- Kristin M Bircsak
- Department of Obstetrics and Gynecology, Center for Research on Reproduction and Women's Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Center of Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Latresa T Copes
- Department of Obstetrics and Gynecology, Center for Research on Reproduction and Women's Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Sara King
- Department of Obstetrics and Gynecology, Center for Research on Reproduction and Women's Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Andrew M Prantner
- Department of Obstetrics and Gynecology, Center for Research on Reproduction and Women's Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Wei-Ting Hwang
- Center of Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA; Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - George L Gerton
- Department of Obstetrics and Gynecology, Center for Research on Reproduction and Women's Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Center of Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
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Uyaroglu OA, Seyhoglu E, Erden A, Kilic L, Karadag O, Akdogan A, Bilgen SA, Ertenli AI, Kiraz S, Kalyoncu U. Pregnancy outcomes in partners of male ankylosing spondylitis patients treated with anti-tumour necrosis factor-α biologics: real-life results from a single-centre cross-sectional study. Rheumatol Int 2020; 40:1501-1507. [PMID: 31993731 DOI: 10.1007/s00296-020-04518-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Accepted: 01/16/2020] [Indexed: 10/25/2022]
Abstract
Most patients with inflammatory arthritis are at their reproductive ages. Use of anti-tumour necrosis factor alpha (anti-TNF-α) agents, one of the important treatment options for inflammatory arthritis, can cause foetal morbidity and mortality. While most studies on the effects of anti-TNF-α agents on pregnancy outcomes are about maternal exposure, the number of studies on the risks related to paternal exposure is insufficient. This study aimed to assess pregnancy periods and outcomes of the partners of male ankylosing spondylitis (AS) patients receiving anti-TNF-α treatment during the preconception period. Totally, 163 male AS patients using anti-TNF-α agents were identified from the Hacettepe University Biological Registry. Of these patients, 45 (27.6%) who declared that their partners got pregnant after initiation on anti-TNF-α agents were included. Data regarding demographics and drug exposure and pregnancy and infant outcomes were evaluated. Of 45 pregnancies, 39 (86.7%) resulted in healthy live births, 3 (6.7%) resulted in spontaneous abortion, and 3 (6.7%) were terminated with curettage. Of 39 live births, 34 (87.2%) were term and 5 (12.8%) were preterm, 30 (76.9%) had normal birth weight, 6 (15.4%) had low birth weight, and 3 (7.7%) had fetal macrosomia. No congenital malformations related to paternal exposure were observed. This study is valuable as being one of the studies providing pregnancy outcomes of partners of male AS patients receiving anti-TNF-α agents with its relatively high number of patients. The results suggested that paternal exposure to anti-TNF-α agents during preconception period could be safe on pregnancy outcomes.
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Affiliation(s)
- Oguz Abdullah Uyaroglu
- Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Sihhiye, 06100, Ankara, Turkey.
| | - Emrah Seyhoglu
- Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Sihhiye, 06100, Ankara, Turkey
| | - Abdulsamet Erden
- Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Levent Kilic
- Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Omer Karadag
- Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Ali Akdogan
- Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Sule Apras Bilgen
- Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Ali Ihsan Ertenli
- Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Sedat Kiraz
- Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Umut Kalyoncu
- Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Chang RC, Wang H, Bedi Y, Golding MC. Preconception paternal alcohol exposure exerts sex-specific effects on offspring growth and long-term metabolic programming. Epigenetics Chromatin 2019; 12:9. [PMID: 30670059 PMCID: PMC6341619 DOI: 10.1186/s13072-019-0254-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 01/17/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Although clinical data support an association between paternal alcohol use and deficits in child neurocognitive development, the relationship between paternal drinking and alcohol-induced growth phenotypes remains challenging to define. Using an established mouse model of chronic exposure, previous work by our group has linked preconception paternal alcohol use to sex-specific patterns of fetal growth restriction and placental dysfunction. The aim of the present study was to investigate the long-term impact of chronic preconception paternal alcohol use on offspring growth and metabolic programming. RESULTS Preconception paternal alcohol exposure induced a prolonged period of fetal gestation and an increased incidence of intrauterine growth restriction, which affected the male offspring to a greater extent than the females. While the female offspring of ethanol-exposed males were able to match the body weights of the controls within the first 2 weeks of postnatal life, male offspring continued to display an 11% reduction in weight at 5 weeks of age and a 6% reduction at 8 weeks of age. The observed growth deficits associated with insulin hypersensitivity in the male offspring, while in contrast, females displayed a modest lag in their glucose tolerance test. These metabolic defects were associated with an up-regulation of genes within the pro-fibrotic TGF-β signaling pathway and increased levels of cellular hydroxyproline within the livers of the male offspring. We observed suppressed cytokine profiles within the liver and pancreas of both the male and female offspring, which correlated with the up-regulation of genes in the LiverX/RetinoidX/FarnesoidX receptor pathways. However, patterns of gene expression were highly variable between the offspring of alcohol-exposed sires. In the adult offspring of alcohol-exposed males, we did not observe any differences in the allelic expression of Igf2 or any other imprinted genes. CONCLUSIONS The impact of paternal alcohol use on child development is poorly explored and represents a significant gap in our understanding of the teratogenic effects of ethanol. Our studies implicate paternal exposure history as an additional and important modifier of alcohol-induced growth phenotypes and challenge the current maternal-centric exposure paradigm.
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Affiliation(s)
- Richard C. Chang
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843-4466 USA
| | - Haiqing Wang
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843-4466 USA
| | - Yudhishtar Bedi
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843-4466 USA
| | - Michael C. Golding
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843-4466 USA
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Messerlian C, Braun JM, Mínguez-Alarcón L, Williams PL, Ford JB, Mustieles V, Calafat AM, Souter I, Toth T, Hauser R. Paternal and maternal urinary phthalate metabolite concentrations and birth weight of singletons conceived by subfertile couples. Environ Int 2017; 107:55-64. [PMID: 28666241 PMCID: PMC5563279 DOI: 10.1016/j.envint.2017.06.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 06/16/2017] [Accepted: 06/16/2017] [Indexed: 05/02/2023]
Abstract
BACKGROUND Prenatal phthalate exposure has been inconsistently associated with fetal growth and infant birth weight. However, the effect of exposure during the paternal and maternal preconception period remains understudied. OBJECTIVES To investigate associations of paternal and maternal preconception and maternal prenatal urinary phthalate metabolite concentrations with birth weight. METHODS The study comprised 364 singletons born to 364 mothers and 195 fathers (195 couples) from the EARTH Study, a prospective cohort of couples from Boston, MA. Births were categorized by mode of conception: in-vitro fertilization based (IVF) (n=208) or non-IVF based (n=156, intrauterine insemination or non-medically assisted/natural conception). We measured urinary concentrations of eleven phthalate metabolites in maternal (n=1425) and paternal (n=489) preconception and maternal prenatal (n=781) samples. Birth weight was abstracted from delivery records. Covariate-adjusted associations between loge-phthalate metabolite concentrations and birth weight were evaluated separately by mode of conception using multivariable linear regression. RESULTS Each loge-unit increase in paternal urinary concentration of the sum of di(2-ethylhexyl) phthalate (ΣDEHP) metabolites was associated with a 90 gram (95% CI: -165, -15) decrease in birth weight among IVF singletons, but not among non-IVF singletons (18g; 95% CI: -76, 113). Additional adjustment for maternal prenatal ΣDEHP concentrations modestly strengthened findings among IVF singletons. While few associations were found with maternal preconception phthalate metabolites, we observed an inverse relationship between several maternal prenatal urinary phthalate metabolite concentrations and birth weight among IVF singletons in covariate-adjusted models. However, with further adjustment for specific paternal phthalate metabolite concentrations, these associations were attenuated and no longer significant. CONCLUSIONS Paternal preconception urinary concentration of ΣDEHP metabolites was associated with a decrease in birth weight among IVF-conceived singletons. These results, if replicated, highlight the importance of preconception health, especially among subfertile couples.
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Affiliation(s)
- Carmen Messerlian
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Joseph M Braun
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA
| | - Lidia Mínguez-Alarcón
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Paige L Williams
- Department of Biostatistics, Harvard T.H. Chan School of Public Health Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health Boston, MA, USA
| | - Jennifer B Ford
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Vicente Mustieles
- University of Granada, Centro de Investigación Biomédica, Granada, Spain
| | - Antonia M Calafat
- National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Irene Souter
- Massachusetts General Hospital Fertility Center, Department of Obstetrics and Gynecology, Harvard Medical School, Boston, MA, USA
| | - Thomas Toth
- Massachusetts General Hospital Fertility Center, Department of Obstetrics and Gynecology, Harvard Medical School, Boston, MA, USA
| | - Russ Hauser
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health Boston, MA, USA; Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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Banholzer ML, Wandel C, Barrow P, Mannino M, Schmitt G, Guérard M, Müller L, Greig G, Amemiya K, Peck R, Singer T, Doessegger L. Clinical trial considerations on male contraception and collection of pregnancy information from female partner: update. Clin Transl Med 2016; 5:23. [PMID: 27455840 PMCID: PMC4960246 DOI: 10.1186/s40169-016-0103-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 06/24/2016] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND This is an update to our 2012 publication on clinical trial considerations on male contraception and collection of pregnancy information from female partner, after critical review of recent (draft) guidances released by the International Council for Harmonisation [ICH] the Clinical Trial Facilitation Group [CTFG] and the US Food & Drug Administration [FDA]. METHODS Relevant aspects of the new guidance documents are discussed in the context of male contraception and pregnancy reporting from female partner in clinical trials and the approach is updated accordingly. RESULTS Genotoxicity The concept of a threshold is introduced using acceptable daily intake/permissible daily exposure to define genotoxicity requirements, hence highly effective contraception in order to avoid conception. The duration for highly effective contraception has been extended from 74 to 90 days from the end of relevant systemic exposure. Teratogenicity Pharmacokinetic considerations to estimate safety margins have been contextualized with regard to over- and underestimation of the risk of teratogenicity transmitted by a vaginal dose. The duration of male contraception after the last dose takes into account the end of relevant systemic exposure if measured, or a default period of five half-lives after last dose for small molecules and two half-lives for immunoglobulins (mAbs). Measures to prevent exposure of the conceptus via a vaginal dose apply to reproductively competent or vasectomized men, unless measurements fail to detect the compound in seminal fluid. CONCLUSION Critical review of new guidance documents provides a comparison across approaches and resulted in an update of our previous publication. Separate algorithms for small molecules and monoclonal antibodies are proposed to guide the recommendations for contraception for male trial participants and pregnancy reporting from female partners. No male contraception is required if the dose is below a defined threshold for genotoxic concern applicable to small molecules. For men treated with teratogenic mAbs, condom use to prevent exposure of a potentially pregnant partner is unlikely to be recommended because of the minimal female exposure anticipated following a vaginal dose. The proposed safety margins for teratogenicity may evolve with further knowledge.
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Affiliation(s)
- Maria Longauer Banholzer
- Safety Risk Management, Licensing & Early Development, F. Hoffmann-La Roche AG, Basel, Switzerland
| | - Christoph Wandel
- Safety Risk Management, Licensing & Early Development, F. Hoffmann-La Roche AG, Basel, Switzerland
| | - Paul Barrow
- Pharma Research & Early Development, Roche Innovation Center Basel, Pharmaceutical Sciences, F. Hoffmann-La Roche AG, Basel, Switzerland
| | - Marie Mannino
- Safety Risk Management, Licensing & Early Development, F. Hoffmann-La Roche Ltd, New York, NY USA
| | - Georg Schmitt
- Pharma Research & Early Development, Roche Innovation Center Basel, Pharmaceutical Sciences, F. Hoffmann-La Roche AG, Basel, Switzerland
| | - Melanie Guérard
- Pharma Research & Early Development, Roche Innovation Center Basel, Pharmaceutical Sciences, F. Hoffmann-La Roche AG, Basel, Switzerland
| | - Lutz Müller
- Pharma Research & Early Development, Roche Innovation Center Basel, Pharmaceutical Sciences, F. Hoffmann-La Roche AG, Basel, Switzerland
| | - Gerard Greig
- Pharma Research & Early Development, Roche Innovation Center Basel, Clinical Pharmacology, F. Hoffmann-La Roche AG, Basel, Switzerland
| | - Kenjie Amemiya
- Non-Clinical Safety Department, Genentech Inc, South San Francisco, CA USA
| | - Richard Peck
- Pharma Research & Early Development, Roche Innovation Center Basel, Clinical Pharmacology, F. Hoffmann-La Roche AG, Basel, Switzerland
| | - Thomas Singer
- Pharma Research & Early Development, Roche Innovation Center Basel, Pharmaceutical Sciences, F. Hoffmann-La Roche AG, Basel, Switzerland
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E Silva PV, da Silva RF, Borges Cdos S, Cavariani MM, de Almeida Francia CC, Júnior FB, De Grava Kempinas W. Sexual differentiation and reproductive development of female rat offspring after paternal exposure to the anti-tumor pharmaceutical cisplatin. Reprod Toxicol 2016; 60:112-22. [PMID: 26867865 DOI: 10.1016/j.reprotox.2016.02.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 12/02/2015] [Accepted: 02/05/2016] [Indexed: 01/22/2023]
Abstract
Cisplatin (CP) is used to treat a number of cancers, including testicular cancer. Studies indicate that CP-treatment can impair spermatogenesis in humans and rodents by germ cell DNA binding, through different modes of action. CP-paternal exposure resulted in adverse effects in F1 male offspring. In this study, F1 female offspring was assessed for reproductive development after CP-paternal exposure. Peri-pubertal male rats, treated with 1mg/Kg/day of CP or vehicle for 3 weeks, were mated with unexposed females. F1 female offspring of CP-treated fathers showed a decrease in fetal ovary germ cells, in estrous cycle length and FSH levels, and an increase in the percentage of antral follicles in adults. Based on our previous results and the findings of the present work we concluded that CP-paternal exposure leads to adverse effects on rat male and female reproductive development, raising concern, in humans, for children born to men exposed to CP.
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Bae J, Kim S, Schisterman EF, Boyd Barr D, Buck Louis GM. Maternal and paternal serum concentrations of perfluoroalkyl and polyfluoroalkyl substances and the secondary sex ratio. Chemosphere 2015; 133:31-40. [PMID: 25863705 PMCID: PMC7502273 DOI: 10.1016/j.chemosphere.2015.03.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 02/28/2015] [Accepted: 03/08/2015] [Indexed: 05/05/2023]
Abstract
Select persistent environmental chemicals have been associated with a reduction in the secondary sex ratio (SSR), or the ratio of male to female live births. We evaluated preconception maternal, paternal, and couple serum concentrations of perfluoroalkyl and polyfluoroalkyl substances (PFASs) in relation to the SSR, given the absence of previous investigation. Two hundred thirty-three couples from Michigan and Texas were enrolled prior to conception and prospectively followed through delivery of a singleton birth, 2005-2009. Maternal and paternal serum concentrations (ng mL(-1)) were measured at baseline for seven PFASs. Logistic regression models were used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for a male birth, after adjusting for potential confounders. When maternal and paternal PFAS concentrations were modeled jointly, five of the seven PFASs, including the two most prominent PFASs, perfluorooctane sulfonic acid and perfluorooctanoic acid, were not significantly associated with the SSR. However, paternal N-methyl-perfluorooctane sulfonamidoacetic acid (MeFOSAA) and perfluorononanoic acid (2nd versus 1st tertile, OR, 0.43, 95% CI, 0.21-0.88) were significantly associated with an excess of female births. Meanwhile, a dose-response relation was observed only for paternal MeFOSAA (2nd versus 1st tertile, OR, 0.53, 95% CI, 0.26-1.10; 3rd versus 1st tertile, OR, 0.34, 95% CI, 0.13-0.89). This study suggests a possible dose-response relation between a less prevalent PFAS and a reversal in the SSR, though the underlying mechanisms remain unknown and the findings await corroboration to eliminate other explanations including chance.
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Affiliation(s)
- Jisuk Bae
- Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6100 Executive Boulevard, Rockville, MD 20852, USA; Department of Preventive Medicine, Catholic University of Daegu School of Medicine, 33 Duryugongwon-ro 17-gil, Nam-gu, Daegu 705-718, Republic of Korea.
| | - Sungduk Kim
- Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6100 Executive Boulevard, Rockville, MD 20852, USA
| | - Enrique F Schisterman
- Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6100 Executive Boulevard, Rockville, MD 20852, USA
| | - Dana Boyd Barr
- Department of Environmental Health, Rollins School of Public Health, Emory University, 1518 Clifton Road, Atlanta, GA 30322, USA
| | - Germaine M Buck Louis
- Department of Environmental Health, Rollins School of Public Health, Emory University, 1518 Clifton Road, Atlanta, GA 30322, USA
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Fan Y, Ding S, Ye X, Manyande A, He D, Zhao N, Yang H, Jin X, Liu J, Tian C, Xu S, Ying C. Does preconception paternal exposure to a physiologically relevant level of bisphenol A alter spatial memory in an adult rat? Horm Behav 2013; 64:598-604. [PMID: 24005185 DOI: 10.1016/j.yhbeh.2013.08.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 08/23/2013] [Accepted: 08/23/2013] [Indexed: 01/13/2023]
Abstract
Bisphenol A (BPA) is a ubiquitous environmental endocrine disrupting compound (EDC); public health concerns have been fueled by findings that maternal BPA exposure can change sex differences in the brain and in some behaviors. We investigated whether a physiologically relevant dose of BPA ingested by male rats before conception would affect spatial memory and hippocampal acetylcholinesterase (AchE) in their adult offspring. Twenty-two 60-day-old male rats (F0) received either a BPA diet (50 μg/kg/day) or vehicle alone for 10 weeks before being mated with non-exposed females. The paternal rats and their forty adult offspring's (F1) behaviors were then examined in the Morris Water Maze (MWM) and their AchE activities in the hippocampus were evaluated. BPA exposure led to spatial memory deficits along with decreased AchE activities in the hippocampus (p = 0.01) in adult F0 rats. This paternal exposure also induced impairment in spatial memory acquisition in both sexes while retention only in females in F1 rats, as well as abolished sex differences in the hippocampus AchE. Overall, these data provide new evidence that paternal BPA exposure, at a "safe" dose, may induce transgenerational alterations in spatial memory in a sex-specific manner.
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Affiliation(s)
- Ying Fan
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Wuhan Mental Health Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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