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Xu H, Chen F, Liu Z, Gao R, He J, Li F, Li N, Mu X, Liu T, Wang Y, Chen X. B(a)P induces ovarian granulosa cell apoptosis via TRAF2-NFκB-Caspase1 axis during early pregnancy. ENVIRONMENTAL RESEARCH 2024; 252:118865. [PMID: 38583661 DOI: 10.1016/j.envres.2024.118865] [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: 01/22/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/09/2024]
Abstract
Benzo(a)pyrene [B(a)P] is an environmental endocrine disruptor with reproductive toxicity. The corpus luteum (CL) of the ovary plays an important role in embryo implantation and pregnancy maintenance. Our previous studies have shown that B(a)P exposure affects embryo implantation and endometrial decidualization in mouse, but its effects and mechanisms on CL function remain unclear. In this study, we explore the mechanism of ovarian toxicity of B(a)P using a pregnant mouse model and an in vitro model of human ovarian granulosa cells (GCs) KGN. Pregnant mice were gavaged with corn oil or 0.2 mg/kg.bw B(a)P from pregnant day 1 (D1) to D7, while KGN cells were treated with DMSO, 1.0IU/mL hCG, or 1.0IU/mL hCG plus benzo(a)pyrene-7,8-dihydrodiol-9,10-epoxide (BPDE), a B(a)P metabolite. Our findings revealed that B(a)P exposure damaged embryo implantation and reduced estrogen and progesterone levels in early pregnant mice. Additionally, in vitro, BPDE impaired luteinization in KGN cells. We observed that B(a)P/BPDE promoted oxidative stress (OS) and inflammation, leading to apoptosis rather than pyroptosis in ovaries and luteinized KGN cells. This apoptotic response was mediated by the activation of inflammatory Caspase1 through the cleavage of BID. Furthermore, B(a)P/BPDE inhibited TRAF2 expression and suppressed NFκB signaling pathway activation. The administration of VX-765 to inhibit the Caspase1 activation, over-expression of TRAF2 using TRAF2-pcDNA3.1 (+) plasmid, and BetA-induced activation of NFκB signaling pathway successfully alleviated BPDE-induced apoptosis and cellular dysfunction in luteinized KGN cells. These findings were further confirmed in the KGN cell treated with H2O2 and NAC. In conclusion, this study elucidated that B(a)P/BPDE induces apoptosis rather than pyroptosis in GCs via TRAF2-NFκB-Caspase1 during early pregnancy, and highlighting OS as the primary contributor to B(a)P/BPDE-induced ovarian toxicity. Our results unveil a novel role of TRAF2-NFκB-Caspase1 in B(a)P-induced apoptosis and broaden the understanding of mechanisms underlying unexplained luteal phase deficiency.
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Affiliation(s)
- Hanting Xu
- Joint International Research Laboratory of Reproduction & Development, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Fangyuan Chen
- Department of Health Toxicology, School of Public Health, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - Zhihao Liu
- Department of Health Toxicology, School of Public Health, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - Rufei Gao
- Department of Health Toxicology, School of Public Health, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - Junlin He
- Department of Health Toxicology, School of Public Health, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - Fangfang Li
- Department of Health Toxicology, School of Public Health, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China
| | - Nanyan Li
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Jiulongpo District Center for Disease Control and Prevention, Chongqing, 400039, PR China
| | - Xinyi Mu
- Joint International Research Laboratory of Reproduction & Development, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Taihang Liu
- Joint International Research Laboratory of Reproduction & Development, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Yingxiong Wang
- Joint International Research Laboratory of Reproduction & Development, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China.
| | - Xuemei Chen
- Department of Health Toxicology, School of Public Health, Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing 400016, PR China.
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Abdoli A, Ghaffarifar F, Sharifi Z, Taghipour A. Toxoplasma gondii infection and testosterone alteration: A systematic review and meta-analyses. PLoS One 2024; 19:e0297362. [PMID: 38568993 PMCID: PMC10990213 DOI: 10.1371/journal.pone.0297362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 01/03/2024] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND Toxoplasma gondii (T. gondii) is a worldwide distributed protozoan parasite which has infected a wide range of warm-blooded animals and humans. The most common form of T. gondii infection is asymptomatic (latent); nevertheless, latent toxoplasmosis can induce various alterations of sex hormones, especially testosterone, in infected humans and animals. On the other hand, testosterone is involved in behavioral traits and reproductive functions in both sexes. Hence, the purpose of this systematic review is to summarize the available evidence regarding the association between T. gondii infection and testosterone alteration. METHODS In the setting of a systematic review, an electronic search (any date to 10 January 2023) without language restrictions was performed using Science Direct, Web of Science, PubMed, Scopus, and Google Scholar. The PRISMA guidelines were followed. Following the initial search, a total of 12,306 titles and abstracts were screened initially; 12,281 were excluded due to the lack of eligibility criteria or duplication. Finally, 24 articles met the included criteria. A mean±standard deviation (SD) was calculated to assess the difference of testosterone between T. gondii positive and T. gondii negative humans. The possibility of publication bias was assessed using Egger's regression. P-value < 0.05 was considered statistically significant. RESULTS This systematic review identified 24 articles (18 studies in humans and six studies in animals). Most human studies (13 out of 19) reported an increased level of testosterone following latent toxoplasmosis in males, while three studies reported decreased levels and two studies reported an insignificant change. Eleven articles (seven datasets in males and seven datasets in females) were eligible to be included in the data synthesis. Based on the random-effects model, the pooled mean± SD of testosterone in T. gondii positive than T. gondii negative was increased by 0.73 and 0.55 units in males and females, respectively. The Egger's regression did not detect a statistically significant publication bias in males and females (p = value = 0.95 and 0.71), respectively. Three studies in male animals (rats, mice, and spotted hyenas) and two studies in female animals (mice and spotted hyenas) reported a decline in testosterone in infected compared with non-infected animals. While, one study in female rats reported no significant changes of testosterone in infected than non-infected animals. Moreover, two studies in male rats reported an increased level of testosterone in infected than non-infected animals. CONCLUSIONS This study provides new insights about the association between T. gondii infection and testosterone alteration and identifies relevant data gaps that can inform and encourage further studies. The consequence of increased testosterone levels following T. gondii infection could partly be associated with increased sexual behavior and sexual transmission of the parasite. On the other hand, declining testosterone levels following T. gondii infection may be associated with male reproductive impairments, which were observed in T. gondii-infected humans and animals. Furthermore, these findings suggest the great need for more epidemiological and experimental investigations in depth to understand the relationship between T. gondii infection and testosterone alteration alongside with future consequences of testosterone alteration.
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Affiliation(s)
- Amir Abdoli
- Zoonoses Research Center, Jahrom University of Medical Sciences, Jahrom, Iran
- Department of Parasitology and Mycology, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Fatemeh Ghaffarifar
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Zohreh Sharifi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Ali Taghipour
- Zoonoses Research Center, Jahrom University of Medical Sciences, Jahrom, Iran
- Department of Parasitology and Mycology, Jahrom University of Medical Sciences, Jahrom, Iran
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Faiad W, Soukkarieh C, Hanano A. 2,3,7,8-tetrachlorodibenzo-p-dioxin induces multigenerational testicular toxicity and biosynthetic disorder of testosterone in BALB/C mice: Transcriptional, histopathological and hormonal determinants. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115233. [PMID: 37421896 DOI: 10.1016/j.ecoenv.2023.115233] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 07/10/2023]
Abstract
2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), a potent environmental contaminant, is an endocrine disrupter with a proven reproductive toxicity in mammals. However, its effects on male fertility across generations are still elusive. The current work evaluates the toxicity of dioxin on male reproductive system in two separate groups of BALB/C mice; a group of pubertal males directly exposed to TCDD (referred to as DEmG), and a group of indirectly exposed males (referred to as IDEmG) comprises of F1, F2 and F3 males born from TCDD-exposed pregnant females. Both groups were exposed to 25 μg TCDD/kg body weight for a week. Our data show that males of TCDD-DEmG exhibited significant alterations in the expression of certain genes involved in the detoxification of TCDD and the biosynthesis of testosterone. This was accompanied with testicular pathological symptoms, including a sloughing in the germinal epithelium and a congestion of blood vessels in interstitial tissue with the presence of multinuclear cells into seminiferous tubule, with a 4-fold decline in the level of serum testosterone and reduced sperm count. Otherwise, the male reproductive toxicity across F1, F2 and F3 generations from TCDD-IDEmG was mainly characterized by: i) a reduce in body and testis weight. ii) a decrease in gene expression of steriodogenesis enzyme, e.g., AhR, CYP1A1, CYP11A1, COX1, COX2, LOX5 and LOX12. iii) a remarked and similar testicular histopathology that found for DEmG, iv) a serious decline in serum testosterone. v) a decreased male-to-female ratio. vi) a low sperm count with increasing abnormalities. Thus, pubertal or maternal exposure to TCDD provokes multigenerational male reproductive toxicity in mice, ultimately affecting the spermatogenesis and suggesting that the hormonal alternation and sperm abnormality are the most marked effects of the indirect exposure of mammalian male to TCDD.
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Affiliation(s)
- Walaa Faiad
- Department of Animal Biology, Faculty of Sciences, University of Damascus, Damascus, Syria
| | - Chadi Soukkarieh
- Department of Animal Biology, Faculty of Sciences, University of Damascus, Damascus, Syria
| | - Abdulsamie Hanano
- Department of Molecular Biology and Biotechnology, Atomic Energy Commission of Syria (AECS), Damascus, Syria.
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Mancuso AC, Mengeling MA, Holcombe A, Ryan GL. Lifetime infertility and environmental, chemical, and hazardous exposures among female and male US veterans. Am J Obstet Gynecol 2022; 227:744.e1-744.e12. [PMID: 35841935 DOI: 10.1016/j.ajog.2022.07.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 06/30/2022] [Accepted: 07/06/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND Veterans experience many potentially hazardous exposures during their service, but little is known about the possible effect of these exposures on reproductive health. OBJECTIVE This study aimed to assess the association between infertility and environmental, chemical, or hazardous material exposures among US veterans. STUDY DESIGN This study examined self-reported cross-sectional data from a national sample of female and male US veterans aged 20 to 45 years separated from service for ≤10 years. Data were obtained via a computer-assisted telephone interview lasting an average of 1 hour and 27 minutes that assessed demographics, general and reproductive health, and lifetime and military exposures. Logistic regression models were used to evaluate associations between exposures to environmental, chemical, and hazardous materials and infertility as defined by 2 different definitions: unprotected intercourse for ≥12 months without conception and trying to conceive for ≥12 months without conception. RESULTS Of the veterans included in this study, 592 of 1194 women (49.6%) and 727 of 1407 men (51.7%) met the unprotected intercourse definition for infertility, and 314 of 781 women (40.2%) and 270 of 775 men (34.8%) met the trying to conceive definition for infertility. Multiple individual exposure rates were found to be higher in women and men veterans with self-reported infertility, including petrochemicals and polychlorinated biphenyls, which were higher in both the men and women groups reporting infertility by either definition. Importantly, there was no queried exposure self-reported at higher rates in the noninfertile groups. Moreover, veterans reporting infertility reported a higher number of total exposures with a mean±standard deviation of 7.61±3.87 exposures for the women with infertility vs 7.13±3.67 for the noninfertile group (P=.030) and 13.17±4.19 for veteran men with infertility vs 12.54±4.10 for the noninfertile group (P=.005) using the unprotected intercourse definition and 7.69±3.79 for the women with infertility vs 7.02±3.57 for the noninfertile group (P=.013) and 13.77±4.17 for the veteran men with infertility vs 12.89±4.08 for the noninfertile group (P=.005) using the trying to conceive definition. CONCLUSION The data identified an association between infertility and environmental, chemical, and hazardous materials that the veterans were exposed to during military service. Although this study was limited by the self-reported and unblinded data collection from a survey, and causation between exposures and infertility cannot be proven, it does show that veterans encounter many exposures during their service and calls for further research into the possible link between veteran exposures and reproductive health.
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Affiliation(s)
- Abigail C Mancuso
- Center for Access and Delivery Research and Evaluation, Iowa City Veterans Affairs Health Care System, Iowa City, IA; Department of Obstetrics and Gynecology, University of Iowa Hospitals and Clinics, Iowa City, IA.
| | - Michelle A Mengeling
- Center for Access and Delivery Research and Evaluation, Iowa City Veterans Affairs Health Care System, Iowa City, IA; Department of General Internal Medicine, The University of Iowa Carver College of Medicine, Iowa City, IA
| | - Andrea Holcombe
- Center for Access and Delivery Research and Evaluation, Iowa City Veterans Affairs Health Care System, Iowa City, IA
| | - Ginny L Ryan
- VA Puget Sound Health Care System, Women's Health, Seattle, WA; Department of Obstetrics and Gynecology, University of Washington School of Medicine, Seattle, WA
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Jiang T, Hu Y, He S, Jiang R, Yao Y, Jin Z, Shen J, Tao F, Ji Y, Liang C. Exposure to multiple toxic metals and the risk of early embryonic arrest among women undergoing assisted reproductive techniques. ENVIRONMENTAL RESEARCH 2022; 211:113072. [PMID: 35283078 DOI: 10.1016/j.envres.2022.113072] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 02/27/2022] [Accepted: 03/01/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Early embryonic arrest is a great challenge for in vitro fertilization. Whether exposure to toxic metals is associated with an increased risk of early embryonic arrest warrants investigation. OBJECTIVES Here, we conducted a case-control study in infertile women to estimate the associations between blood barium (Ba), arsenic (As), mercury (Hg), and lead (Pb) exposure levels and the risk of early embryonic arrest. METHODS Ba, As, Hg, and Pb exposure levels in fasting blood collected from 74 infertile women (123 cycles) with early embryonic arrest and 157 infertile women (180 cycles) without early embryonic arrest were measured by ICP-MS. Bayesian kernel machine regression (BKMR) was used to assess the association of exposure level of toxic metals mixture with the risk of early embryonic arrest as well as to evaluate which metal playing a leading role in the association, and then generalized estimating equations (GEEs) were used to evaluate the relationship between the selected harmful metal and the risk of early embryonic arrest. Finally, the potential causes of early embryonic arrest originating from the harmful metal exposure were explored. RESULTS Blood Ba levels were significantly higher in the case group than that in the control group (p = 0.009) rather than As, Pb and Hg. Results from BKMR showed that exposure to toxic metals mixture increased the risk of early embryonic arrest, with Ba playing a leading role (PIP = 0.9612). GEE analysis showed that high Ba exposure level was related with the increased risk of early embryonic arrest (p < 0.05) and it impacted on the oogenesis significantly. CONCLUSIONS Our study found that exposure to toxic metals mixture was associated with the increased risk of early embryonic arrest, and Ba contributed most to the increased risk. Higher Ba exposure in whole blood corresponds to a higher risk of early embryonic arrest and impacted on the oogenesis significantly.
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Affiliation(s)
- Tingting Jiang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Yuan Hu
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Shitao He
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Rui Jiang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Yuyou Yao
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics / Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University; No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Zhongxiu Jin
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics / Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University; No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Juan Shen
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Fangbiao Tao
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics / Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University; No 81 Meishan Road, Hefei, 230032, Anhui, China.
| | - Yanli Ji
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics / Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University; No 81 Meishan Road, Hefei, 230032, Anhui, China.
| | - Chunmei Liang
- School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China; Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics / Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University; No 81 Meishan Road, Hefei, 230032, Anhui, China.
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Pogrmic-Majkic K, Samardzija Nenadov D, Tesic B, Fa Nedeljkovic S, Kokai D, Stanic B, Andric N. Mapping DEHP to the adverse outcome pathway network for human female reproductive toxicity. Arch Toxicol 2022; 96:2799-2813. [PMID: 35790550 PMCID: PMC9352620 DOI: 10.1007/s00204-022-03333-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/15/2022] [Indexed: 01/09/2023]
Abstract
Adverse outcome pathways (AOPs) and AOP networks are tools for mechanistic presentation of toxicological effects across different levels of biological organization. These tools are used to better understand how chemicals impact human health. In this study, a four-step workflow was used to derive the AOP network of human female reproductive toxicity (HFRT-AOP) from five AOPs available in the AOP-Wiki and ten AOPs obtained from the literature. Standard network analysis identified key events (KEs) that are point of convergence and divergence, upstream and downstream KEs, and bottlenecks across the network. To map di-(2-ethylhexyl) phthalate (DEHP) to the HFRT-AOP network, we extracted DEHP target genes and proteins from the Comparative Toxicogenomic and the CompTox Chemicals Dashboard databases. Enriched GO terms analysis was used to identify relevant biological processes in the ovary that are DEHP targets, whereas screening of scientific literature was performed manually and automatically using AOP-helpFinder. We combined this information to map DEHP to HFRT-AOP network to provide insight on the KEs and system-level perturbations caused by this endocrine disruptor and the emergent paths. This approach can enable better understanding of the toxic mechanism of DEHP-induced human female reproductive toxicity and reveal potential novel DEHP female reproductive targets for experimental studies.
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Affiliation(s)
- Kristina Pogrmic-Majkic
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000, Novi Sad, Serbia.
| | - Dragana Samardzija Nenadov
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000, Novi Sad, Serbia
| | - Biljana Tesic
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000, Novi Sad, Serbia
| | - Svetlana Fa Nedeljkovic
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000, Novi Sad, Serbia
| | - Dunja Kokai
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000, Novi Sad, Serbia
| | - Bojana Stanic
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000, Novi Sad, Serbia
| | - Nebojsa Andric
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000, Novi Sad, Serbia
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Toxicological Effects of Technical Xylene Mixtures on the Female Reproductive System: A Systematic Review. TOXICS 2022; 10:toxics10050235. [PMID: 35622648 PMCID: PMC9144477 DOI: 10.3390/toxics10050235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 02/04/2023]
Abstract
Technical xylene is a compound of massive production that is used in applications such as petrochemical and healthcare laboratories. Exposure to xylene can cause acute and chronic effects in humans and animals. Currently available studies regarding xylene’s adverse effects with credible designs were dated almost twenty years ago. This systematic review summarizes the findings regarding the detrimental effects of technical xylene from human, animal, and in vitro studies. It recapitulated available studies with respect to the effects of xylene on the female reproductive system to stress the need for updating the current data and guidelines. Based on pre-specified criteria, 22 studies from journal databases exploring the toxic effects of xylene on menstruation, endocrine endpoints, fetal development, and reproductive functions were included for the review. It was found that related studies with a specific focus on the effects of technical xylene on the female reproductive system were insufficient. Therefore, further studies are necessary to update the existing data, thus improving the quality and reliability of risk assessment of exposure to xylene in pregnant women
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8
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Plante I, Winn LM, Vaillancourt C, Grigorova P, Parent L. Killing two birds with one stone: Pregnancy is a sensitive window for endocrine effects on both the mother and the fetus. ENVIRONMENTAL RESEARCH 2022; 205:112435. [PMID: 34843719 DOI: 10.1016/j.envres.2021.112435] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 06/13/2023]
Abstract
Pregnancy is a complex process requiring tremendous physiological changes in the mother in order to fulfill the needs of the growing fetus, and to give birth, expel the placenta and nurse the newborn. These physiological modifications are accompanied with psychological changes, as well as with variations in habits and behaviors. As a result, this period of life is considered as a sensitive window as impaired functional and physiological changes in the mother can have short- and long-term impacts on her health. In addition, dysregulation of the placenta and of mechanisms governing placentation have been linked to chronic diseases later-on in life for the fetus, in a concept known as the Developmental Origin of Health and Diseases (DOHaD). This concept stipulates that any change in the environment during the pre-conception and perinatal (in utero life and neonatal) period to puberty, can be "imprinted" in the organism, thereby impacting the health and risk of chronic diseases later in life. Pregnancy is a succession of events that is regulated, in large part, by hormones and growth factors. Therefore, small changes in hormonal balance can have important effects on both the mother and the developing fetus. An increasing number of studies demonstrate that exposure to endocrine disrupting compounds (EDCs) affect both the mother and the fetus giving rise to growing concerns surrounding these exposures. This review will give an overview of changes that happen during pregnancy with respect to the mother, the placenta, and the fetus, and of the current literature regarding the effects of EDCs during this specific sensitive window of exposure.
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Affiliation(s)
- Isabelle Plante
- INRS-Centre Armand-Frappier Santé Biotechnologie, Laval, QC, Canada.
| | - Louise M Winn
- Queen's University, School of Environmental Studies, Department of Biomedical and Molecular Sciences, Kingston, ON, Canada
| | | | - Petya Grigorova
- Département Science et Technologie, Université TELUQ, Montreal, QC, Canada
| | - Lise Parent
- Département Science et Technologie, Université TELUQ, Montreal, QC, Canada
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Smarr MM, Mirzaei Salehabadi S, Boyd Barr D, Buck Louis GM, Sundaram R. A multi-pollutant assessment of preconception persistent endocrine disrupting chemicals and incident pregnancy loss. ENVIRONMENT INTERNATIONAL 2021; 157:106788. [PMID: 34332300 DOI: 10.1016/j.envint.2021.106788] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 07/14/2021] [Accepted: 07/19/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND A few endocrine disrupting chemicals (EDCs) have been associated with pregnancy loss often as reported by women, though there has been no study of EDC mixtures and pregnancy loss in keeping with the nature of human exposure. OBJECTIVES To investigate preconception exposure to a mixture of EDCs to identify important drivers and inform multi-pollutant models of EDCs in relation to incident human gonadrophin chorionic (hCG) pregnancy loss. METHODS A cohort of 501 couples were recruited from the general population and prospectively followed until a hCG-confirmed pregnancy or 12 months of trying to become pregnant. Pregnant (n = 344; 69%) women were followed daily through seven weeks post-conception then monthly until delivery. Loss was defined as conversion to negative pregnancy test or a clinical diagnosis. Preconception exposure assessment of EDCs included sixty-three serum chemicals and three blood metals. EDCs were measured using isotope dilution gas chromatography-high resolution mass spectrometry or high-performance liquid chromatography-tandem mass spectrometry, and inductively coupled plasma-mass spectrometry, respectively. Using elastic net variable selection to identify important factors from the exposure mixture, EDC levels and covariates were then included in Cox proportional hazard models to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) of time-to-pregnancy loss in multi-pollutant models. RESULTS Incidence of hCG pregnancy loss was 28%. Nine EDCs of the sixty-six chemical mixture were associated with pregnancy loss; HRs were elevated for polychlorinated biphenyl 194, 2-(N-methyl-perfluorooctane sulfonamido) acetate, polybrominated diphenyl ether 28, and cadmium, even in sensitivity models adjusting for male partners' EDC concentrations. In final multivariable multi-pollutant Cox proportional hazard models, female partners'polybrominated diphenyl ether 28 (aHR = 1.16, 95% CI: 1.02, 1.31) and cadmium (aHR = 1.23, 95% CI: 1.07, 1.40) remained associated with hCG pregnancy loss. Female partners' preconception serum polychlorinated biphenyl 194 and 2-(N-methyl-perfluorooctane sulfonamido) acetate concentrations were consistently inversely associated with loss [(aHR = 0.72, 95% CI: 0.56, 0.92) and (aHR = 0.79, 95% CI: 0.65, 0.95), respectively]. CONCLUSION Assessing exposure to a mixture of 66 persistent EDCs, females' preconception concentrations of polybrominated diphenyl ether 28 and cadmium were positively associated with incident hCG pregnancy loss in a cohort of couples from the general population trying for pregnancy.
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Affiliation(s)
- Melissa M Smarr
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | | | - Dana Boyd Barr
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | | | - Rajeshwari Sundaram
- Biostatistics and Bioinformatics Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA.
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10
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Vu M, Nguyen A, Alur-Gupta S. Asian Americans and Infertility: Genetic Susceptibilities, Sociocultural Stigma and Access to Care. F S Rep 2021; 3:40-45. [PMID: 35937455 PMCID: PMC9349240 DOI: 10.1016/j.xfre.2021.12.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/16/2021] [Accepted: 12/16/2021] [Indexed: 11/01/2022] Open
Abstract
Infertility affects over 6 million people in the United States and has been shown to disproportionally affect minority patient populations. Asian American infertility is a particularly understudied area of research. This mini review article explores the current state of published research focusing on Asian American infertility trends as well as their barriers to fertility care. A small number of published studies have found that Asian American patients have decreased success with fertility treatments, including lower rates of pregnancy and live birth. These trends may be attributed to a combination of genetic, environmental, and cultural factors, which will be discussed here in further detail. It is crucial to continue building on Asian American fertility research to provide this diverse patient population with comprehensive, compassionate, and culturally sensitive care.
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11
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McGlacken-Byrne SM, Conway GS. Premature ovarian insufficiency. Best Pract Res Clin Obstet Gynaecol 2021; 81:98-110. [PMID: 34924261 DOI: 10.1016/j.bpobgyn.2021.09.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 09/18/2021] [Indexed: 11/17/2022]
Abstract
The natural lifespan of the ovary is occasionally interrupted by pathological processes; some are known, but many are unknown. Premature ovarian insufficiency (POI) can be a devastating diagnosis for an adolescent or for someone who has yet to start a family. Common causes of POI include genetic and chromosomal defects, autoimmune damage, and cancer treatments. Knowledge of the pathogenesis of this condition and an awareness of contemporary hormone replacement and fertility options are required to design a multidisciplinary therapeutic approach comprising reproductive medicine, endocrinology, clinical psychology, and assisted fertility expertise.
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Affiliation(s)
| | - Gerard S Conway
- Institute for Women's Health, University College London, London, UK.
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12
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Hsieh HC, Lee CI, Lai EY, Su JY, Huang YT, Zheng WL, Chen CH, Huang CC, Lin PY, Lee MS, Liu M, Huang YT. Estimating the causal effect of embryo transfer day on clinical in vitro fertilization outcomes using propensity score matching. BMC Pregnancy Childbirth 2021; 21:554. [PMID: 34388966 PMCID: PMC8364091 DOI: 10.1186/s12884-021-04013-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 07/13/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND For women undergoing in vitro fertilization (IVF), the clinical benefit of embryo transfer at the blastocyst stage (Day 5) versus cleavage stage (Day 3) remains controversial. The purpose of this study is to compare the implantation rate, clinical pregnancy rate and odds of live birth of Day 3 and Day 5 embryo transfer, and more importantly, to address the issue that patients were chosen to receive either transfer protocol due to their underlying clinical characteristics, i.e., confounding by indication. METHODS We conducted a retrospective cohort study of 9,090 IVF cycles collected by Lee Women's Hospital in Taichung, Taiwan from 1998 to 2014. We utilized the method of propensity score matching to mimic a randomized controlled trial (RCT) where each patient with Day 5 transfer was matched by another patient with Day 3 transfer with respect to other clinical characteristics. Implantation rate, clinical pregnancy rate, and odds of live birth were compared for women underwent Day 5 transfer and Day 3 transfer to estimate the causal effects. We further investigated the causal effects in subgroups by stratifying age and anti-Mullerian hormone (AMH). RESULTS Our analyses uncovered an evidence of a significant difference in implantation rate (p=0.04) favoring Day 5 transfer, and showed that Day 3 and Day 5 transfers made no difference in both odds of live birth (p=0.27) and clinical pregnancy rate (p=0.11). With the increase of gestational age, the trend toward non-significance of embryo transfer day in our result appeared to be consistent for subgroups stratified by age and AMH, while all analyses stratified by age and AMH were not statistically significant. CONCLUSIONS We conclude that for women without strong indications for Day 3 or Day 5 transfer, there is a small significant difference in implantation rate in favor of Day 5 transfer. However, the two protocols have indistinguishable outcomes on odds of live birth and clinical pregnancy rate.
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Affiliation(s)
- Han-Chih Hsieh
- Institute of Statistical Science, Academia Sinica, No. 128 Academia Road, Taipei, 11529, Taiwan
| | - Chun-I Lee
- Institute of Medicine, Chung Shan Medical University, No.110,Sec.1,Jianguo N.Rd., Taichung, 40201, Taiwan.,Department of Obstetrics and Gynecology, Chung Shan Medical University, No.110,Sec.1,Jianguo N.Rd., Taichung, 40201, Taiwan.,Division of Infertility, Lee Women's Hospital, No. 30-6, Section 1, Changping Road, Taichung, 406, Taiwan
| | - En-Yu Lai
- Institute of Statistical Science, Academia Sinica, No. 128 Academia Road, Taipei, 11529, Taiwan
| | - Jia-Ying Su
- Institute of Statistical Science, Academia Sinica, No. 128 Academia Road, Taipei, 11529, Taiwan
| | - Yi-Ting Huang
- Institute of Statistical Science, Academia Sinica, No. 128 Academia Road, Taipei, 11529, Taiwan.,Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Room 501, No. 17, Xu-Zhou Road, Taipei, 100, Taiwan
| | - Wei-Lin Zheng
- Binflux Inc, 4F.-1, No. 9, Dehui St., Taipei, 104, Taiwan
| | - Chien-Hong Chen
- Division of Infertility, Lee Women's Hospital, No. 30-6, Section 1, Changping Road, Taichung, 406, Taiwan
| | - Chun-Chia Huang
- Division of Infertility, Lee Women's Hospital, No. 30-6, Section 1, Changping Road, Taichung, 406, Taiwan
| | - Pin-Yao Lin
- Division of Infertility, Lee Women's Hospital, No. 30-6, Section 1, Changping Road, Taichung, 406, Taiwan
| | - Maw-Sheng Lee
- Institute of Medicine, Chung Shan Medical University, No.110,Sec.1,Jianguo N.Rd., Taichung, 40201, Taiwan.,Department of Obstetrics and Gynecology, Chung Shan Medical University, No.110,Sec.1,Jianguo N.Rd., Taichung, 40201, Taiwan.,Division of Infertility, Lee Women's Hospital, No. 30-6, Section 1, Changping Road, Taichung, 406, Taiwan
| | - Mark Liu
- Binflux Inc, 4F.-1, No. 9, Dehui St., Taipei, 104, Taiwan
| | - Yen-Tsung Huang
- Institute of Statistical Science, Academia Sinica, No. 128 Academia Road, Taipei, 11529, Taiwan.
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Key PB, Chung KW, West JB, Pennington PL, DeLorenzo ME. Developmental and reproductive effects in grass shrimp (Palaemon pugio) following acute larval exposure to a thin oil sheen and ultraviolet light. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 228:105651. [PMID: 33049420 DOI: 10.1016/j.aquatox.2020.105651] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 09/16/2020] [Accepted: 10/01/2020] [Indexed: 06/11/2023]
Abstract
Many early stages of estuarine species congregate at the surface or in the upper mixing layer making them prone to UV light exposure and oil sheens. Laboratory testing was used to assess UV-oil sheen interactions with grass shrimp (Palaemon pugio). Newly hatched grass shrimp larvae were exposed to a 1-μm thick oil sheen for 24 h with or without an 8-h pulse of UV light. Grass shrimp were then transferred to clean seawater and non-UV conditions to measure development, growth, and reproductive fitness. Minimal toxicity was observed after the initial exposure but larval development was significantly delayed in shrimp exposed to the UV enhanced sheen. After reaching sexual maturity, shrimp were paired to evaluate effects on reproduction. Shrimp initially exposed to the UV enhanced sheen as larvae had a significant reduction in fecundity compared to controls. This demonstrates the importance of examining interactions between UV light and oil since negative effects to aquatic organisms may be underestimated if based on standard laboratory fluorescent lighting. Acute exposures of early life stages to thin oil sheens and UV light may lead to long-term impacts to individuals and ultimately to grass shrimp populations.
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Affiliation(s)
- Peter B Key
- National Centers for Coastal Ocean Science, National Ocean Service, National Oceanic and Atmospheric Administration, Charleston, SC, USA.
| | - Katy W Chung
- JHT, Inc. and CSS, Inc. under contract to National Centers for Coastal Ocean Science, National Ocean Service, National Oceanic and Atmospheric Administration, Charleston, SC, USA
| | - J Blaine West
- JHT, Inc. and CSS, Inc. under contract to National Centers for Coastal Ocean Science, National Ocean Service, National Oceanic and Atmospheric Administration, Charleston, SC, USA
| | - Paul L Pennington
- National Centers for Coastal Ocean Science, National Ocean Service, National Oceanic and Atmospheric Administration, Charleston, SC, USA
| | - Marie E DeLorenzo
- National Centers for Coastal Ocean Science, National Ocean Service, National Oceanic and Atmospheric Administration, Charleston, SC, USA
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Koli S, Prakash A, Choudhury S, Mandil R, Garg SK. Mercury affects uterine myogenic activity even without producing any apparent toxicity in rats: Involvement of calcium-signaling cascades. J Trace Elem Med Biol 2020; 57:40-47. [PMID: 31557574 DOI: 10.1016/j.jtemb.2019.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 08/31/2019] [Accepted: 09/11/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Mercury is an established environmental toxicant reported to cause reproductive disorders in women, however, its direct action on myometrial activity is yet to be understood. Earlier we have reported the underlying mechanism of mercury-induced myometrial contractions following in vitro exposure; however, no such information on the effect of mercury on myometrial activity following in vivo exposure is available, therefore, the present study was undertaken. OBJECTIVE Present study was designed to evaluate the effect of mercury on myometrial activity following in vivo exposure of rats and unravel the possible underlying mechanism. METHODS Female Wistar rats were orally exposed to mercury (5, 50 and 500 μg/L in drinking water) for 28 days to investigate the toxicodynamics of mercuric chloride (HgCl2)-induced alterations in myometrial activity. Response of the isolated myometrial strips to different spasmogens was recorded using polyphysiograph. Blood and uterine calcium, mercury, iron and zinc levels were estimated by atomic absorption spectrophotometry. Blood biochemicals and serum hormonal profiles (estradiol, progesterone) were also determined. RESULTS No systemic toxicity of mercury was observed in any of the treatment groups (5, 50 and 500 μg/L) in terms of alterations in body weight, organ weights, blood biochemical parameters including hormonal profile. Interestingly, mercury at 5 μg/L concentration significantly increased the receptor-dependent (PGF2α-induced) and receptor-independent (CaCl2-induced and high K+-depolarizing solution-induced) myometrial contractions and it was coupled with corresponding increase in the uterine calcium levels. However, mercury at higher dose levels (50 and 500 μg/L) did not significantly alter the myometrial response. CONCLUSION Our results evidently suggest that mercury at low level (5 μg/L) produced detrimental effect on myometrial activity by altering calcium entry into the smooth muscle and/or the release of calcium from intracellular stores without causing any apparent systemic toxicity in rats.
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Affiliation(s)
- Swati Koli
- Experimental Pharmacology Laboratory, Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science and Animal Husbandry, U.P. Pt. Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go-Anusandhan Sansthan (DUVASU), Mathura, 281001, UP, India
| | - Atul Prakash
- Experimental Pharmacology Laboratory, Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science and Animal Husbandry, U.P. Pt. Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go-Anusandhan Sansthan (DUVASU), Mathura, 281001, UP, India
| | - Soumen Choudhury
- Experimental Pharmacology Laboratory, Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science and Animal Husbandry, U.P. Pt. Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go-Anusandhan Sansthan (DUVASU), Mathura, 281001, UP, India
| | - Rajesh Mandil
- Experimental Pharmacology Laboratory, Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science and Animal Husbandry, U.P. Pt. Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go-Anusandhan Sansthan (DUVASU), Mathura, 281001, UP, India
| | - Satish K Garg
- Experimental Pharmacology Laboratory, Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science and Animal Husbandry, U.P. Pt. Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go-Anusandhan Sansthan (DUVASU), Mathura, 281001, UP, India.
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Hall JM, Greco CW. Perturbation of Nuclear Hormone Receptors by Endocrine Disrupting Chemicals: Mechanisms and Pathological Consequences of Exposure. Cells 2019; 9:cells9010013. [PMID: 31861598 PMCID: PMC7016921 DOI: 10.3390/cells9010013] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/13/2019] [Accepted: 12/17/2019] [Indexed: 01/09/2023] Open
Abstract
Much of the early work on Nuclear Hormone Receptors (NHRs) focused on their essential roles as mediators of sex steroid hormone signaling in reproductive development and function, and thyroid hormone-dependent formation of the central nervous system. However, as NHRs display tissue-specific distributions and activities, it is not surprising that they are involved and vital in numerous aspects of human development and essential for homeostasis of all organ systems. Much attention has recently been focused on the role of NHRs in energy balance, metabolism, and lipid homeostasis. Dysregulation of NHR function has been implicated in numerous pathologies including cancers, metabolic obesity and syndrome, Type II diabetes mellitus, cardiovascular disease, hyperlipidemia, male and female infertility and other reproductive disorders. This review will discuss the dysregulation of NHR function by environmental endocrine disrupting chemicals (EDCs), and the associated pathological consequences of exposure in numerous tissues and organ systems, as revealed by experimental, clinical, and epidemiological studies.
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Esmaiel S, Tahereh H, Noreddin NMS, Massood E. Mancozeb exposure during development and lactation periods results in decreased oocyte maturation, fertilization rates, and implantation in the first-generation mice pups: Protective effect of vitamins E and C. Toxicol Ind Health 2019; 35:714-725. [PMID: 31818241 DOI: 10.1177/0748233719890965] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This study aimed to evaluate the mancozeb (MNZ) impact on oocyte maturation of first-generation mice pups as well as their fertilization rate, embryo development, and implantation along with the preventative effect of vitamins E and C. Pregnant mice were randomly divided into six groups: control, vehicle, and MNZ (500 mg/kg body weight (BW)), vitamin E (200 mg/kg BW), MNZ plus vitamin E, MNZ plus vitamin C (100 mg/kg BW), and MNZ plus two vitamins. All treatments were conducted by oral gavage every 2 days from the second day of gestation until the end of lactation. Vitamin treatment was initiated 30 min before receiving MNZ. After birth, first-generation mice pups were kept until adulthood (8-10 W). Adult female mice pups superovulated and then the collected oocytes were examined for nuclear maturity status. After in vitro fertilization of metaphase II oocytes with sperm of the first-generation male mice pups, fertilization rate and embryo development were evaluated over 24 h. Also, the fecundity rate and the number of implanted embryos in vivo were studied on the eighth day of pregnancy. MNZ exposure during embryo development and lactation significantly decreased the total number of collected oocytes, oocyte maturation, fertilization rate, implantation rate, fecundity rate, and embryo development compared with the control group in the first-generation pups. In contrast, vitamin treatments significantly increased these parameters compared to the MNZ group. Reduction in the quality of oocyte, the rate of fertilization, embryo implantation, and development following MNZ exposure could decrease female reproductive success, while coadministration of vitamins E and C could prevent these complications.
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Affiliation(s)
- Saddein Esmaiel
- Department of Anatomical Sciences, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Haghpanah Tahereh
- Department of Anatomical Sciences, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Ezzatabadipour Massood
- Department of Anatomical Sciences, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
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McCormack CD, Leemaqz SY, Furness DL, Dekker GA, Roberts CT. Anti-Müllerian hormone levels in recurrent embryonic miscarriage patients are frequently abnormal, and may affect pregnancy outcomes. J OBSTET GYNAECOL 2019; 39:623-627. [DOI: 10.1080/01443615.2018.1552669] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Catherine D. McCormack
- Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, Australia
- Department of Obstetrics, Women’s and Children’s Hospital, North Adelaide, Australia
| | - Shalem Y. Leemaqz
- Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, Australia
| | - Denise L. Furness
- Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, Australia
| | - Gustaaf A. Dekker
- Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, Australia
| | - Claire T. Roberts
- Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, Australia
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18
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Ma Y, He X, Qi K, Wang T, Qi Y, Cui L, Wang F, Song M. Effects of environmental contaminants on fertility and reproductive health. J Environ Sci (China) 2019; 77:210-217. [PMID: 30573085 DOI: 10.1016/j.jes.2018.07.015] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/20/2018] [Accepted: 07/30/2018] [Indexed: 06/09/2023]
Abstract
Recent research indicates that the human infertility rate is increasing. Although various reasons have been hypothesized for the growing infertility rate, environmental contaminants are potentially important causal agents associated with this change. Chemical contaminants are widespread throughout our environment and human exposure is virtually unavoidable. The overall contribution of environmental exposure to infertility is unknown, but studies involving occupational exposure, together with results from animal experiments, suggest that environmental contaminants may adversely affect fertility. We reviewed the adverse effects of environmental exposure on fertility and related reproductive outcomes. Environmental contaminants covered in this review include heavy metals, organic solvents, pesticides and endocrine disrupting chemicals. It is hoped that this review will highlight the need for further research in this area.
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Affiliation(s)
- Yanmin Ma
- Reproductive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Xin He
- Reproductive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Keyan Qi
- Department of Clinical Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Tong Wang
- Reproductive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Yongchao Qi
- Reproductive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Lele Cui
- Reproductive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Fengbang Wang
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Maoyong Song
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Marí-Bauset S, Donat-Vargas C, Llópis-González A, Marí-Sanchis A, Peraita-Costa I, Llopis-Morales J, Morales-Suárez-Varela M. Endocrine Disruptors and Autism Spectrum Disorder in Pregnancy: A Review and Evaluation of the Quality of the Epidemiological Evidence. CHILDREN (BASEL, SWITZERLAND) 2018; 5:E157. [PMID: 30477137 PMCID: PMC6306747 DOI: 10.3390/children5120157] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 11/13/2018] [Accepted: 11/19/2018] [Indexed: 12/23/2022]
Abstract
Exposure to environmental contaminants during pregnancy has been linked to adverse health outcomes later in life. Notable among these pollutants are the endocrine disruptors chemicals (EDCs), which are ubiquitously present in the environment and they have been measured and quantified in the fetus. In this systematic review, our objective was to summarize the epidemiological research on the potential association between prenatal exposure to EDCs and Autism Spectrum Disorder (ASD) published from 2005 to 2016. The Navigation Guide Systematic Review Methodology was applied. A total of 17 studies met the inclusion criteria for this review, including: five cohorts and 12 case-control. According to the definitions specified in the Navigation Guide, we rated the quality of evidence for a relationship between prenatal exposure to EDCs and ASD as "moderate". Although the studies generally showed a positive association between EDCs and ASD, after considering the strengths and limitations, we concluded that the overall strength of evidence supporting an association between prenatal exposure to EDCs and later ASD in humans remains "limited" and inconclusive. Further well-conducted prospective studies are warranted to clarify the role of EDCs on ASD development.
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Affiliation(s)
- Salvador Marí-Bauset
- Unit of Public Health and Environmental Care, Department of Preventive Medicine, University of Valencia, Avenida Vicente Andrés Estellés s/n, Burjasot, 46100 Valencia, Spain.
| | - Carolina Donat-Vargas
- Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Nobels väg 13, 171 65 Solna, Sweden.
| | - Agustín Llópis-González
- Unit of Public Health and Environmental Care, Department of Preventive Medicine, University of Valencia, Avenida Vicente Andrés Estellés s/n, Burjasot, 46100 Valencia, Spain.
- Biomedical Research Center Network on Epidemiology and Public Health (CIBERESP), Institute of Health Carlos III, Avenida Monforte de Lemos, 3-5, Pabellón 11, Planta 0, 28029 Madrid, Spain.
| | - Amelia Marí-Sanchis
- Clinical Nutrition and Dietetics Unit, Navarra Hospital Complex, Calle de Irunlarrea, 3, Pamplona, 31008 Navarre, Spain.
| | - Isabel Peraita-Costa
- Unit of Public Health and Environmental Care, Department of Preventive Medicine, University of Valencia, Avenida Vicente Andrés Estellés s/n, Burjasot, 46100 Valencia, Spain.
- Biomedical Research Center Network on Epidemiology and Public Health (CIBERESP), Institute of Health Carlos III, Avenida Monforte de Lemos, 3-5, Pabellón 11, Planta 0, 28029 Madrid, Spain.
| | - Juan Llopis-Morales
- Unit of Public Health and Environmental Care, Department of Preventive Medicine, University of Valencia, Avenida Vicente Andrés Estellés s/n, Burjasot, 46100 Valencia, Spain.
| | - María Morales-Suárez-Varela
- Unit of Public Health and Environmental Care, Department of Preventive Medicine, University of Valencia, Avenida Vicente Andrés Estellés s/n, Burjasot, 46100 Valencia, Spain.
- Biomedical Research Center Network on Epidemiology and Public Health (CIBERESP), Institute of Health Carlos III, Avenida Monforte de Lemos, 3-5, Pabellón 11, Planta 0, 28029 Madrid, Spain.
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Effects of cigarette smoke extracts on apoptosis and oxidative stress in two models of ovarian cancer in vitro. Toxicol In Vitro 2018; 52:161-169. [DOI: 10.1016/j.tiv.2018.06.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/08/2018] [Accepted: 06/07/2018] [Indexed: 02/06/2023]
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Akar Y, Ahmad N, Khalıd M. The effect of cadmium on the bovine in vitro oocyte maturation and early embryo development. Int J Vet Sci Med 2018; 6:S73-S77. [PMID: 30761325 PMCID: PMC6161866 DOI: 10.1016/j.ijvsm.2018.03.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 03/01/2018] [Accepted: 03/01/2018] [Indexed: 01/27/2023] Open
Abstract
Common pollutants such as heavy metals and cadmium is among those with high environmental concerns. In vivo studies had shown that cadmium (Cd) causes oocyte degeneration and embryo mortality, and lowers pregnancy rates in mammals. However, there is limited information available about direct effects of Cd on oocyte maturation and/or embryo development. This study was aimed to investigate if Cd has any effect on the oocyte maturation and/or embryo development in vitro. Bovine COCs were collected from the slaughter house and cultured for 24 h in serum-free media only (Controls) or supplemented with 0.2, 2.0 and 20.0 μM CdCl2. At 24 h cumulus cell expansion was assessed in all COCs. COCs were either denuded and stained for determination of nuclear maturation or fertilized for assessment of subsequent embryo development. Cd at the lowest concentration (0.2 μM) did not affect any of the parameters studied. However, at higher concentrations (2.0 and 20.0 μM) it significantly (P < 0.05) reduced the percentage of fully-expanded COCs and significantly (P < 0.05) increased the percentage of partially and/or non-expanded COCs compared to controls and 0.2 μM. Cadmium at higher concentrations (2.0 and 20.0 μM) also significantly (P < 0.01) reduced the percentage of oocytes reaching metaphase II stage compared to controls and 0.2 μM. Post-fertilization cleavage rate in presumptive zygotes and blastocyst development significantly (P < 0.05) reduced 0.2, 2.0 and 20.0 μM CdCl2 compared to the controls (0.0 μM). In conclusion, these results suggest that Cd had direct detrimental effects on the bovine oocyte maturation and its developmental competence.
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Affiliation(s)
- Yaşar Akar
- Deparment of Obstetrics and Gynaecology, Faculty of Veterinary Medicine, University of Erciyes, Talas, Kayseri, Turkey
| | - Naveed Ahmad
- Deparment of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, Pakistan
| | - Muhammad Khalıd
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, University of London, London, UK
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Abarikwu SO, Njoku RC, Lawrence CJ, Charles IA, Ikewuchi JC. Rutin ameliorates oxidative stress and preserves hepatic and renal functions following exposure to cadmium and ethanol. PHARMACEUTICAL BIOLOGY 2017; 55:2161-2169. [PMID: 29025321 PMCID: PMC6130732 DOI: 10.1080/13880209.2017.1387575] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
CONTEXT Rutin (RUT) is an antioxidant flavonoid with well-known metal chelating potentials. OBJECTIVE This study was designed to evaluate the protective effects of RUT against cadmium (Cd) + ethanol (EtOH)-induced hepatic and renal toxicity in rats. MATERIALS AND METHODS Wistar rats were treated with Cd (50 mg/kg) alone or in combination with EtOH (5 mg/kg) and RUT (25, 50 and 100 mg/kg) for 15 days. After treatment, the liver, kidney and serum were removed for biochemical assays by spectrophotometric methods. RESULTS Serum, hepatic and renal malondialdehyde (MDA) levels were highest in the Cd + EtOH group and lowest in Cd + EtOH animals co-treated with the highest dose of RUT (2.98 ± 0.34, 10.08 ± 2.32, 4.99 ± 1.21 vs. 1.69 ± 0.33, 6.13 ± 0.28, 3.66 ± 1.12 μmol MDA/mg protein, respectively). The serum level of Cd was increased in the Cd + EtOH treated animals compared to Cd + EtOH animals co-treated with 100 mg/kg RUT (2.54 ± 0.08 vs. 1.28 ± 0.04 ppm). Furthermore, RUT at the highest dose protected against Cd + EtOH-induced elevation of bilirubin and uric acid levels as well as activities of lactate dehydrogenase and γ-glutamyl transferase (62.86 ± 2.74 vs. 122.52 ± 6.35 µmol/L; 1.77 ± 0.35 vs. 3.23 ± 0.55 mmol/L; 9.56 ± 1.22 vs. 16.21 ± 1.64 U/L; 288.92 ± 40.12 vs. 159.8 ± 18.01 U/L). The histo-pathological changes in the liver and kidney were also reduced in the Cd + EtOH animals co-treated with RUT in a dose-dependent manner. DISCUSSION AND CONCLUSION RUT protected against the combined effects of Cd + EtOH on hepatic and renal functions and improved the antioxidant defence system in the blood.
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Affiliation(s)
- Sunny O. Abarikwu
- Department of Biochemistry, University of Port Harcourt, Choba, Nigeria
- CONTACT Sunny O. Abarikwu , Department of Biochemistry, University of Port Harcourt, Choba, Nigeria
| | - Rex-Clovis Njoku
- Department of Biochemistry, University of Port Harcourt, Choba, Nigeria
| | | | | | - Jude C. Ikewuchi
- Department of Biochemistry, University of Port Harcourt, Choba, Nigeria
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Archibong AE, Rideout ML, Harris KJ, Ramesh A. OXIDATIVE STRESS IN REPRODUCTIVE TOXICOLOGY. CURRENT OPINION IN TOXICOLOGY 2017; 7:95-101. [PMID: 30105313 DOI: 10.1016/j.cotox.2017.10.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Oxidative stress (OS) has been implicated in the causation of environmentally-induced diseases. However, the role of toxicants in the pathophysiology of disorders and diseases affecting the reproductive system are less understood. This review focuses on some of the mechanisms that underlie OS-induced reproductive toxicity at the cellular- and organ levels (germ cell damage and perturbed organ responses to endocrine stimuli). While most of the reproductive and developmental studies conducted in adult animals and transgenerational adult animals point to the involvement of genotoxicity, the part played by epigenetic alterations is accorded a recent recognition, thus warranting more studies in this area. Additionally, metabolomic, proteomic and transcriptomic approaches need to be employed to advance our understanding of key metabolites formed and the expression of anti-OS genes at the molecular level that are necessary for combating reactive oxygen species formation. The resulting data could be analyzed using bioinformatics tools to identify the pathways linked to disease causation and as a consequence, the adoption of therapeutic strategies, including but not limited to administering phytochemicals (many of which possess antioxidant properties) to improve disease outcomes.
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Affiliation(s)
| | | | - Kenneth J Harris
- Department of Biochemistry & Cancer Biology, Meharry Medical College, Nashville TN 37208
| | - Aramandla Ramesh
- Department of Biochemistry & Cancer Biology, Meharry Medical College, Nashville TN 37208
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25
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Comparison of the adsorption preference using superparamagnetic Fe3O4-SH nanoparticles to remove aqueous heavy metal contaminants. Chem Eng Res Des 2017. [DOI: 10.1016/j.cherd.2017.07.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Amadi CN, Igweze ZN, Orisakwe OE. Heavy metals in miscarriages and stillbirths in developing nations. MIDDLE EAST FERTILITY SOCIETY JOURNAL 2017. [DOI: 10.1016/j.mefs.2017.03.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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27
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Ahmad MI, Usman A, Ahmad M. Computational study involving identification of endocrine disrupting potential of herbicides: Its implication in TDS and cancer progression in CRPC patients. CHEMOSPHERE 2017; 173:395-403. [PMID: 28129617 DOI: 10.1016/j.chemosphere.2017.01.054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 12/10/2016] [Accepted: 01/11/2017] [Indexed: 06/06/2023]
Abstract
Several environmental pollutants, including herbicides, act as endocrine disrupting chemicals (EDCs). They can cause cancer, diabetes, obesity, metabolic diseases and developmental problems. Present study was conducted to screen 608 herbicides for evaluating their endocrine disrupting potential. The screening was carried out with the help of endocrine disruptome docking program, http://endocrinedisruptome.ki.si (Kolsek et al., 2013). This program screens the binding affinity of test ligands to 12 major nuclear receptors. As high as 252 compounds were capable of binding to at least three receptors wherein 10 of them showed affinity with at-least six receptors based on this approach. The latter were ranked as potent EDCs. Majority of the screened herbicides were acting as antagonists of human androgen receptor (hAR). A homology modeling approach was used to construct the three dimensional structure of hAR to understand their binding mechanism. Docking results reveal that the most potent antiandrogenic herbicides would bind to hydrophobic cavity of modeled hAR and may lead to testicular dysgenesis syndrome (TDS) on fetal exposure. However, on binding to T877 mutant AR they seem to act as agonists in castration-resistant prostate cancer (CRPC) patients.
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Affiliation(s)
- Md Irshad Ahmad
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, U.P., 202002, India
| | - Afia Usman
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, U.P., 202002, India
| | - Masood Ahmad
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, U.P., 202002, India.
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Izaguirry AP, Soares MB, Vargas LM, Spiazzi CC, Dos Santos Brum D, Noremberg S, Mendez ASL, Santos FW. Blueberry (Vaccinium ashei Reade) extract ameliorates ovarian damage induced by subchronic cadmium exposure in mice: Potential δ-ALA-D involvement. ENVIRONMENTAL TOXICOLOGY 2017; 32:188-196. [PMID: 26663770 DOI: 10.1002/tox.22225] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 11/16/2015] [Accepted: 11/25/2015] [Indexed: 06/05/2023]
Abstract
Females are born with a finite number of oocyte-containing follicles and ovary damage results in reduced fertility. Cadmium accumulates in the reproductive system, damaging it, and the cigarette smoke is a potential exposure route. Natural therapies are relevant to health benefits and disease prevention. This study verified the effect of cadmium exposure on the ovaries of mice and the blueberry extract as a potential therapy. Blueberry therapy was effective in restoring reactive species levels and δ-aminolevulinate dehydratase activity, and partially improved the viability of cadmium-disrupted follicles. This therapy was not able to restore the 17 β-hydroxysteroid dehydrogenase activity. Extract HPLC evaluation indicated the presence of quercetin, quercitrin, isoquercetin, and ascorbic acid. Ascorbic acid was the major substance and its concentration was 620.24 µg/mL. Thus, cadmium accumulates in the ovaries of mice after subchronic exposure, inducing cellular damage, and the blueberry extract possesses antioxidant properties that could protect, at least in part, the ovarian tissue from cadmium toxicity. © 2015 Wiley Periodicals, Inc. Environ Toxicol 32: 188-196, 2017.
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Affiliation(s)
- Aryele Pinto Izaguirry
- Laboratório De Biotecnologia Da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal Do Pampa, CEP 97500-970, Uruguaiana, Rio Grande do Sul, Brazil
| | - Melina Bucco Soares
- Laboratório De Biotecnologia Da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal Do Pampa, CEP 97500-970, Uruguaiana, Rio Grande do Sul, Brazil
| | - Laura Musacchio Vargas
- Laboratório De Biotecnologia Da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal Do Pampa, CEP 97500-970, Uruguaiana, Rio Grande do Sul, Brazil
| | - Cristiano Chiapinotto Spiazzi
- Laboratório De Biotecnologia Da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal Do Pampa, CEP 97500-970, Uruguaiana, Rio Grande do Sul, Brazil
| | - Daniela Dos Santos Brum
- Laboratório De Biotecnologia Da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal Do Pampa, CEP 97500-970, Uruguaiana, Rio Grande do Sul, Brazil
| | - Simone Noremberg
- Laboratório De Biotecnologia Da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal Do Pampa, CEP 97500-970, Uruguaiana, Rio Grande do Sul, Brazil
- Departamento De Química, Centro De Ciências Naturais E Exatas, Universidade Federal De Santa Maria, CEP 97105-900, Santa Maria, Rio Grande do Sul, Brazil
| | - Andreas Sebastian Loureiro Mendez
- Laboratório De Desenvolvimento E Controle De Qualidade De Medicamentos (LDCQ), Campus Uruguaiana, Universidade Federal Do Pampa, CEP 97500-970, Uruguaiana, Rio Grande do Sul, Brazil
- Faculdade De Farmácia, Universidade Federal Do Rio Grande Do Sul, Av. Ipiranga 2752, CEP 90610-000, Porto Alegre, Rio Grande do Sul, Brazil
| | - Francielli Weber Santos
- Laboratório De Biotecnologia Da Reprodução (Biotech), Campus Uruguaiana, Universidade Federal Do Pampa, CEP 97500-970, Uruguaiana, Rio Grande do Sul, Brazil
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Awasthi AK, Zeng X, Li J. Response to "Letter to the editor re: Awasthi et al., 2016 (Environ Sci Pollut Res 23(12): 11509-11532)". ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:25512-25514. [PMID: 27796977 DOI: 10.1007/s11356-016-7765-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 09/22/2016] [Indexed: 06/06/2023]
Affiliation(s)
- Abhishek Kumar Awasthi
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Rm. 805, Sino-Italian Environment and Energy Efficient Building, Beijing, 100084, China
| | - Xianlai Zeng
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Rm. 805, Sino-Italian Environment and Energy Efficient Building, Beijing, 100084, China.
| | - Jinhui Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Rm. 805, Sino-Italian Environment and Energy Efficient Building, Beijing, 100084, China.
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30
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Wang A, Padula A, Sirota M, Woodruff TJ. Environmental influences on reproductive health: the importance of chemical exposures. Fertil Steril 2016; 106:905-29. [PMID: 27513554 PMCID: PMC5158104 DOI: 10.1016/j.fertnstert.2016.07.1076] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 07/12/2016] [Accepted: 07/13/2016] [Indexed: 12/09/2022]
Abstract
Chemical exposures during pregnancy can have a profound and life-long impact on human health. Because of the omnipresence of chemicals in our daily life, there is continuous contact with chemicals in food, water, air, and consumer products. Consequently, human biomonitoring studies show that pregnant women around the globe are exposed to a variety of chemicals. In this review we provide a summary of current data on maternal and fetal exposure, as well as health consequences from these exposures. We review several chemical classes, including polychlorinated biphenyls, perfluoroalkyl substances, polybrominated diphenyl ethers, phenols, phthalates, pesticides, and metals. Additionally, we discuss environmental disparities and vulnerable populations, and future research directions. We conclude by providing some recommendations for prevention of chemical exposure and its adverse reproductive health consequences.
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Affiliation(s)
- Aolin Wang
- Program on Reproductive Health and the Environment, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, California; Institute for Computational Health Sciences, University of California, San Francisco, San Francisco, California
| | - Amy Padula
- Program on Reproductive Health and the Environment, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, California
| | - Marina Sirota
- Institute for Computational Health Sciences, University of California, San Francisco, San Francisco, California
| | - Tracey J Woodruff
- Program on Reproductive Health and the Environment, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, California.
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31
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Usman A, Ahmad M. From BPA to its analogues: Is it a safe journey? CHEMOSPHERE 2016; 158:131-42. [PMID: 27262103 DOI: 10.1016/j.chemosphere.2016.05.070] [Citation(s) in RCA: 185] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 05/16/2016] [Accepted: 05/22/2016] [Indexed: 05/19/2023]
Abstract
Bisphenol-A (BPA) is one of the most abundant synthetic chemicals in the world due to its uses in plastics. Its widespread exposure vis-a-vis low dose effects led to a reduction in its safety dose and imposition of ban on its use in infant feeding bottles. This restriction paved the way for the gradual market entry of its analogues. However, their structural similarity to BPA has put them under surveillance for endocrine disrupting potential. The application of these analogues is increasing and so are the studies reporting their toxicity. This review highlights the reasons which led to the ban of BPA and also reports the exposure and toxicological data available on its analogues. Hence, this compilation is expected to answer in a better way whether the replacement of BPA by these analogues is safer or more harmful?
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Affiliation(s)
- Afia Usman
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India
| | - Masood Ahmad
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India.
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32
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Abarikwu SO, Olufemi PD, Lawrence CJ, Wekere FC, Ochulor AC, Barikuma AM. Rutin, an antioxidant flavonoid, induces glutathione and glutathione peroxidase activities to protect against ethanol effects in cadmium-induced oxidative stress in the testis of adult rats. Andrologia 2016; 49. [PMID: 27562125 DOI: 10.1111/and.12696] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/01/2016] [Indexed: 12/21/2022] Open
Abstract
Exposure to cadmium (Cd) reduces sperm quality and induces oxidative stress in the testis. Rutin is an effective antioxidant flavonoid. We studied the effect of ethanol (EtOH, 5 g/kg b.wt.) intake on Cd (50 mg/kg b.wt.)-induced testicular toxicity with or without RUT pre-treatment (25, 50, 100 mg/kg b.wt.) in rats. At the end of the 15-day oral treatment, co-treatment with EtOH decreased the activities of glutathione (GSH), GSH-peroxidase and superoxide dismutase resulting to slight increase in the testicular MDA level compared to Cd-treated rats. The Cd+EtOH animals had higher levels of abnormal spermatozoa, decreased epididymal sperm number and serum testosterone levels (p < .05) compared to the Cd-treated animals. Rutin co-administration protected against the EtOH effects in a dose-dependent manner, with the Cd+EtOH+50 mg/kg RUT- and Cd+EtOH+100 mg/kg RUT-treated animals having higher GSH and GSH-Px activities beyond the control values (p < .05). In a supplementary study, animals treated daily with RUT alone (25, 50, 100 mg/kg b.wt.) for 15 days dose-dependently increased testicular GSH-peroxidase and GSH activities by 9.38%, 31.25%, 56.25% and 7.14%, 32.14%, 60.71%, respectively, compared to control values. Therefore, RUT induces GSH and GSH-Px activities to protect against Cd+EtOH-induced testis oxidative stress in rats.
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Affiliation(s)
- S O Abarikwu
- Department of Biochemistry, University of Port Harcourt, Choba, Nigeria
| | - P D Olufemi
- Department of Biochemistry, University of Port Harcourt, Choba, Nigeria
| | - C J Lawrence
- Department of Biochemistry, University of Port Harcourt, Choba, Nigeria
| | - F C Wekere
- Department of Biochemistry, University of Port Harcourt, Choba, Nigeria
| | - A C Ochulor
- Department of Biochemistry, University of Port Harcourt, Choba, Nigeria
| | - A M Barikuma
- Department of Biochemistry, University of Port Harcourt, Choba, Nigeria
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Awasthi AK, Zeng X, Li J. Relationship between e-waste recycling and human health risk in India: a critical review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:11509-32. [PMID: 26880523 DOI: 10.1007/s11356-016-6085-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Accepted: 01/08/2016] [Indexed: 05/07/2023]
Abstract
Informal recycling of waste (including e-waste) is an emerging source of environmental pollution in India. Polychlorinated biphenyls (PCBs), polychlorinated diphenyl ethers (PBDEs), and heavy metals, among other substances, are a major health concern for workers engaged in waste disposal and processing, and for residents living near these facilities, and are also a detriment to the natural environment. The main objective of this review article was to evaluate the status of these impacts. The review found that, huge quantity of e-waste/waste generated, only a small amount is treated formally; the remainder is processed through the informal sector. We also evaluated the exposure pathways, both direct and indirect, and the human body load markers (e.g., serum, blood, breast milk, urine, and hair), and assessed the evidence for the association between these markers and e-waste exposure. Our results indicated that the open dumping and informal e-waste recycling systems should be replaced by the best available technology and environmental practices, with proper monitoring and regular awareness programs for workers and residents. Further and more detailed investigation in this area is also recommended.
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Affiliation(s)
- Abhishek Kumar Awasthi
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Rm. 805, Sino-Italian Environment and Energy Efficient Building, Beijing, 100084, China
| | - Xianlai Zeng
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Rm. 805, Sino-Italian Environment and Energy Efficient Building, Beijing, 100084, China
| | - Jinhui Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Rm. 805, Sino-Italian Environment and Energy Efficient Building, Beijing, 100084, China.
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Shargil D, Fine P, Gerstl Z, Nitsan I, Kurtzman D. Impact of biosolids and wastewater effluent application to agricultural land on corticosterone content in lettuce plants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 541:742-749. [PMID: 26437348 DOI: 10.1016/j.scitotenv.2015.09.115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/16/2015] [Accepted: 09/22/2015] [Indexed: 06/05/2023]
Abstract
We studied corticosterone occurrence in lettuce plants grown on three biosolids amended soils under irrigation with either tap water or secondary wastewater effluent. Corticosterone was examined as it has possible implications for human health. It is a major glucocorticoid, and as such has an effect on regulation of metabolism, immune functions and stress response. The plants were grown in 220-L lysimeters packed with 3 soils which represent a wide range of physicochemical properties. Lettuce was grown in cycles (two in summer and two in winter) during 3 years, and in every spring season the sludges were re-applied. Corticosterone was quantified using ELISA and LCMS, and was found in the biosolids, tap water, wastewater effluent and lettuce plants. The respective ranges of concentrations were: 11-92 ng g(-1), 0.5-1.6 ng L(-1), 4.2-4.7 ng L(-1); and 1-900 ng g(-1) dry weight. A positive relationship was found between corticosterone concentrations in winter-grown lettuces and the plants fresh weight. The corticosterone content of the plants did not correspond with either the type of irrigation water or the biosolids type and rate of application or the soil properties.
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Affiliation(s)
- Dorit Shargil
- Institute of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Center, POB 6, Bet Dagan 50250, Israel.
| | - Pinchas Fine
- Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, Volcani Center, POB 6, Bet Dagan 50250, Israel
| | - Zev Gerstl
- Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, Volcani Center, POB 6, Bet Dagan 50250, Israel
| | - Ido Nitsan
- Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, Volcani Center, POB 6, Bet Dagan 50250, Israel
| | - Daniel Kurtzman
- Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, Volcani Center, POB 6, Bet Dagan 50250, Israel
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Topping CJ, Dalby L, Skov F. Landscape structure and management alter the outcome of a pesticide ERA: Evaluating impacts of endocrine disruption using the ALMaSS European Brown Hare model. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 541:1477-1488. [PMID: 26490527 DOI: 10.1016/j.scitotenv.2015.10.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 10/08/2015] [Accepted: 10/08/2015] [Indexed: 06/05/2023]
Abstract
There is a gradual change towards explicitly considering landscapes in regulatory risk assessment. To realise the objective of developing representative scenarios for risk assessment it is necessary to know how detailed a landscape representation is needed to generate a realistic risk assessment, and indeed how to generate such landscapes. This paper evaluates the contribution of landscape and farming components to a model based risk assessment of a fictitious endocrine disruptor on hares. In addition, we present methods and code examples for generation of landscape structures and farming simulation from data collected primarily for EU agricultural subsidy support and GIS map data. Ten different Danish landscapes were generated and the ERA carried out for each landscape using two different assumed toxicities. The results showed negative impacts in all cases, but the extent and form in terms of impacts on abundance or occupancy differed greatly between landscapes. A meta-model was created, predicting impact from landscape and farming characteristics. Scenarios based on all combinations of farming and landscape for five landscapes representing extreme and middle impacts were created. The meta-models developed from the 10 real landscapes failed to predict impacts for these 25 scenarios. Landscape, farming, and the emergent density of hares all influenced the results of the risk assessment considerably. The study indicates that prediction of a reasonable worst case scenario is difficult from structural, farming or population metrics; rather the emergent properties generated from interactions between landscape, management and ecology are needed. Meta-modelling may also fail to predict impacts, even when restricting inputs to combinations of those used to create the model. Future ERA may therefore need to make use of multiple scenarios representing a wide range of conditions to avoid locally unacceptable risks. This approach could now be feasible Europe wide given the landscape generation methods presented.
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Affiliation(s)
- Chris J Topping
- Department of Bioscience, Aarhus University, Grenåvej 14, 8410 Rønde, Denmark
| | - Lars Dalby
- Department of Bioscience, Aarhus University, Grenåvej 14, 8410 Rønde, Denmark
| | - Flemming Skov
- Department of Bioscience, Aarhus University, Grenåvej 14, 8410 Rønde, Denmark
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Poursafa P, Ataei E, Kelishadi R. A systematic review on the effects of environmental exposure to some organohalogens and phthalates on early puberty. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2015; 20:613-8. [PMID: 26600838 PMCID: PMC4621657 DOI: 10.4103/1735-1995.165971] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background: Early puberty is a common worldwide problem. Different parameters as genetics, metabolic diseases, obesity, as well as environmental factors may affect the age of puberty. This systematic review aims to survey the related literature on the effects of environmental pollutants and especially organohalogens and phthalates on early puberty. Materials and Methods: A systematic review of papers published in the English language was completed in January 2014. Studies on the associations of organohalogens and phthalates with the puberty time were included. A literature search was conducted in EMBASE, PubMed, Scopus, ISI Web of Science, and Cochrane Library from 1995 to January 2014; moreover manual search through references of relevant manuscripts was considered. The literature search identified 212 papers, of which 13 papers fulfilled the inclusion criteria of the current study. Two reviewers independently identified relevant papers for potential inclusion and assessed the methodological quality. Results: This review included 6572 participants in nine countries from three continents (Europe, North America, and Asia). Different studies determined the effects of pollutants on maturation signs and pubertal stages and confirmed the association of organohalogens and phthalates with early puberty. Conclusion: Based on the studied literature, environmental pollutants surround and accumulate in human societies and their adverse health effects are well documented. It can be concluded that organohalogens and phthalates are disturbing the normal process of puberty timing; especially their influence on early maturation in girls should be underscored.
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Affiliation(s)
- Parinaz Poursafa
- Department of Environmental Health Engineering, Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ehsan Ataei
- Department of Pediatrics, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Roya Kelishadi
- Department of Pediatrics, 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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Melin VE, Melin TE, Dessify BJ, Nguyen CT, Shea CS, Hrubec TC. Quaternary ammonium disinfectants cause subfertility in mice by targeting both male and female reproductive processes. Reprod Toxicol 2015; 59:159-66. [PMID: 26582257 DOI: 10.1016/j.reprotox.2015.10.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 10/01/2015] [Accepted: 10/09/2015] [Indexed: 01/26/2023]
Abstract
Alkyl dimethyl benzyl ammonium chloride (ADBAC) and didecyl dimethyl ammonium chloride (DDAC) are common ingredients in household bathroom and kitchen cleaning sprays. ADBAC+DDAC cause reproductive toxicity in mice. The aim of the present study was to investigate gender-specific reproductive effects from ADBAC+DDAC. Female reproduction was assessed through ovulation, oocyte implantation, and estrus cycling. Male reproductive function was assessed by sperm concentration, motility, and viability. Numbers of corpora lutea were not different after 2 weeks, but decreased after 8 weeks of ADBAC+DDAC exposure. Dams exposed for 5 weeks to ADBAC+DDAC spent significantly less time in estrus. ADBAC+DDAC exposed males exhibited declines in both sperm concentration and motility, but not sperm viability. Subfertility in mice from ADBAC+DDAC exposure is, therefore, mediated through reproductive disturbances in both females and males. While the effect of ADBAC+DDAC exposure on human health is unclear, widespread exposure necessitates further consideration of their potential reproductive toxicity.
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Affiliation(s)
- Vanessa E Melin
- Department of Biomedical Sciences and Pathobiology, VA-MD College of Veterinary Medicine, VA Tech, Blacksburg, VA 24061, USA
| | - Travis E Melin
- Department of Biomedical Science, E. Via College of Osteopathic Medicine - Virginia Campus, Blacksburg, VA 24060, USA
| | - Brian J Dessify
- Department of Biomedical Science, E. Via College of Osteopathic Medicine - Virginia Campus, Blacksburg, VA 24060, USA
| | - Christina T Nguyen
- Department of Biomedical Science, E. Via College of Osteopathic Medicine - Virginia Campus, Blacksburg, VA 24060, USA
| | - Caroline S Shea
- Department of Biomedical Sciences and Pathobiology, VA-MD College of Veterinary Medicine, VA Tech, Blacksburg, VA 24061, USA
| | - Terry C Hrubec
- Department of Biomedical Sciences and Pathobiology, VA-MD College of Veterinary Medicine, VA Tech, Blacksburg, VA 24061, USA; Department of Biomedical Science, E. Via College of Osteopathic Medicine - Virginia Campus, Blacksburg, VA 24060, USA.
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Di Renzo GC, Conry JA, Blake J, DeFrancesco MS, DeNicola N, Martin JN, McCue KA, Richmond D, Shah A, Sutton P, Woodruff TJ, van der Poel SZ, Giudice LC. International Federation of Gynecology and Obstetrics opinion on reproductive health impacts of exposure to toxic environmental chemicals. Int J Gynaecol Obstet 2015; 131:219-25. [PMID: 26433469 DOI: 10.1016/j.ijgo.2015.09.002] [Citation(s) in RCA: 188] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Exposure to toxic environmental chemicals during pregnancy and breastfeeding is ubiquitous and is a threat to healthy human reproduction. There are tens of thousands of chemicals in global commerce, and even small exposures to toxic chemicals during pregnancy can trigger adverse health consequences. Exposure to toxic environmental chemicals and related health outcomes are inequitably distributed within and between countries; universally, the consequences of exposure are disproportionately borne by people with low incomes. Discrimination, other social factors, economic factors, and occupation impact risk of exposure and harm. Documented links between prenatal exposure to environmental chemicals and adverse health outcomes span the life course and include impacts on fertility and pregnancy, neurodevelopment, and cancer. The global health and economic burden related to toxic environmental chemicals is in excess of millions of deaths and billions of dollars every year. On the basis of accumulating robust evidence of exposures and adverse health impacts related to toxic environmental chemicals, the International Federation of Gynecology and Obstetrics (FIGO) joins other leading reproductive health professional societies in calling for timely action to prevent harm. FIGO recommends that reproductive and other health professionals advocate for policies to prevent exposure to toxic environmental chemicals, work to ensure a healthy food system for all, make environmental health part of health care, and champion environmental justice.
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Affiliation(s)
| | - Jeanne A Conry
- American College of Obstetricians and Gynecologists, Washington, DC, USA
| | - Jennifer Blake
- Society of Obstetricians and Gynaecologists of Canada, Ottawa, ON, Canada
| | - Mark S DeFrancesco
- American College of Obstetricians and Gynecologists, Washington, DC, USA
| | - Nathaniel DeNicola
- American College of Obstetricians and Gynecologists, Washington, DC, USA
| | - James N Martin
- American College of Obstetricians and Gynecologists, Washington, DC, USA
| | - Kelly A McCue
- American College of Obstetricians and Gynecologists, Washington, DC, USA
| | - David Richmond
- Royal College of Obstetricians and Gynaecologists, London, UK
| | - Abid Shah
- Royal College of Obstetricians and Gynaecologists, London, UK
| | - Patrice Sutton
- Program on Reproductive Health and the Environment, University of California, San Francisco, San Francisco, CA, USA
| | - Tracey J Woodruff
- Program on Reproductive Health and the Environment, University of California, San Francisco, San Francisco, CA, USA.
| | | | - Linda C Giudice
- American Society for Reproductive Medicine, Birmingham, AL, USA
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Patel S, Zhou C, Rattan S, Flaws JA. Effects of Endocrine-Disrupting Chemicals on the Ovary. Biol Reprod 2015; 93:20. [PMID: 26063868 DOI: 10.1095/biolreprod.115.130336] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 06/05/2015] [Indexed: 01/01/2023] Open
Abstract
Endocrine-disrupting chemicals (EDCs) are found abundantly in the environment, resulting in daily human exposure. This is of concern because many EDCs are known to target the female reproductive system and, more specifically, the ovary. In the female, the ovary is the key organ responsible for reproductive and endocrine functions. Exposure to EDCs is known to cause many reproductive health problems such as infertility, premature ovarian failure, and abnormal sex steroid hormone levels. Some EDCs and their effects on adult ovarian function have been studied extensively over the years, whereas the effects of others remain unclear. This review covers what is currently known about the effects of selected EDCs (bisphenol A, methoxychlor, 2,3,7,8-tetrachlorodibenzo-p-dioxin, phthalates, and genistein) on the adult ovary and the mechanisms by which they act upon the ovary, focusing primarily on their effects on folliculogenesis and steroidogenesis. Furthermore, this review discusses future directions needed to better understand the effects of EDCs, including the need to examine the effects of multiple and more consistent doses and to study different mechanisms of action.
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Affiliation(s)
- Shreya Patel
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Changqing Zhou
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Saniya Rattan
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Jodi A Flaws
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
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Pan X, Liu X, Li X, Niu N, Yin X, Li N, Yu Z. Association between Environmental Dioxin-Related Toxicants Exposure and Adverse Pregnancy Outcome: Systematic Review and Meta-Analysis. INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2015; 8:351-66. [PMID: 25780516 PMCID: PMC4355921 DOI: 10.22074/ijfs.2015.4174] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Accepted: 11/06/2013] [Indexed: 01/10/2023]
Abstract
Dioxin-related compounds are associated with teratogenic and mutagenic risks in laboratory animals, and result in adverse pregnancy outcomes. However, there were inconsistent results in epidemiology studies. In view of this difference, we conducted a
systematic review and meta-analysis to examine this association and to assess the heterogeneity among studies. Comprehensive literature searches were performed to search
for relevant articles published in English up to 15 May 2012. In total, we identified 15
studies which included 9 cohort and 6 case control studies. The Cochrane Q test and
index of heterogeneity (I2) were used to evaluate heterogeneity. In either cohort studies
(I2=0.89, p<0.0001) or case control studies (I2=0.69, p=0.02), significant heterogeneity
of risk estimates were observed. Subgroup analyses found no significant increased risk
of adverse pregnancy outcome with air dioxin-related compounds exposure (RR=0.99,
95% CI:0.85–1.16), no significant increased risk of spontaneous abortion (SAB) with exposure to food dioxin-related compounds (RR=1.05, 95% CI:0.80–1.37), higher significant risks of low birth weight (LBW) with exposure to food dioxin-related compounds
(RR=1.55, 95% CI:1.24–1.94), and higher significant risks of birth defects with maternal
solid contaminants dioxin exposure (OR=1.24, 95% CI:1.19–1.29). In conclusion, more
evidences are needed to confirm the association between environmental dioxin-related
compounds exposure and pregnancy outcome.
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Affiliation(s)
- Xinjuan Pan
- College of Public Health, Zhengzhou University, Zhengzhou, China ; Medical College, Henan University of Science and Technology, Luoyang, China
| | - Xiaozhuan Liu
- College of Public Health, Zhengzhou University, Zhengzhou, China ; Medical College, Henan University of Science and Technology, Luoyang, China
| | - Xing Li
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Nannan Niu
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Xinjuan Yin
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Ning Li
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Zengli Yu
- College of Public Health, Zhengzhou University, Zhengzhou, China
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Sengupta P, Banerjee R, Nath S, Das S, Banerjee S. Metals and female reproductive toxicity. Hum Exp Toxicol 2014; 34:679-97. [PMID: 25425549 DOI: 10.1177/0960327114559611] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Research into occupational exposure of metals and consequences of reproductive systems has made imperative scientific offerings in the preceding few decades. Early research works focused on possible effects on the reproductive functions rather than the complete reproductive health of the woman. Later, it was realized that metals, as reproductive toxins, may also induce hormonal changes affecting other facets of reproductive health such as the menstrual cycle, ovulation, and fertility. Concern is now shifting from considerations for the pregnant woman to the entire spectrum of occupational health threats and thus reproductive health among women.
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Affiliation(s)
- P Sengupta
- Department of Physiology, Vidyasagar College for Women, University of Calcutta
| | - R Banerjee
- Department of Physiology, University of Calcutta, Kolkata, West Bengal, India
| | - S Nath
- Department of Genetics, University of Calcutta, Kolkata, West Bengal, India
| | - S Das
- Department of Physiology, University of Calcutta, Kolkata, West Bengal, India
| | - S Banerjee
- Department of Physiology, University of Calcutta, Kolkata, West Bengal, India
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Zhu H, Jia Y, Cao H, Meng F, Liu X. Biochemical and histopathological effects of subchronic oral exposure of rats to a mixture of five toxic elements. Food Chem Toxicol 2014; 71:166-75. [DOI: 10.1016/j.fct.2014.06.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 05/29/2014] [Accepted: 06/09/2014] [Indexed: 11/16/2022]
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Zhao Y, Chen X, Liu X, Ding Y, Gao R, Qiu Y, Wang Y, He J. Exposure of mice to benzo(a)pyrene impairs endometrial receptivity and reduces the number of implantation sites during early pregnancy. Food Chem Toxicol 2014; 69:244-51. [PMID: 24769007 DOI: 10.1016/j.fct.2014.04.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 04/05/2014] [Accepted: 04/11/2014] [Indexed: 01/14/2023]
Abstract
Benzo(a)pyrene (BaP) is a ubiquitous environmental pollutant. Studies have demonstrated it to be an endocrine-disrupting chemical that can cause adverse effects on the female reproductive system. However, the effect of BaP on early pregnancy has not been reported. We investigated the effect of BaP on endometrial receptivity and embryo implantation. Pregnant mice were dosed with BaP at 0.2, 2 and 20 mg/kg/day from day 1 (D1) to day 5 (D5) of gestation. Exposure to BaP impaired the morphology of the endometrium and decreased the number of implantation sites (p0.2=0.006, p2=0.167, p20=0.003). Levels of estrodiol (p<0.001, for three treatment group compare with control group) and progesterone-4 in plasma were elevated in BaP-treatment groups (p0.2<0.001, p2<0.001, p20=0.032). Expression of estrogen receptor-α was up-regulated (p0.2=0.002, p2=0.131, p20=0.024) whereas expression of the progesterone receptor was down-regulated (p0.2<0.001, p2=0.064, p20=0.021). Levels of receptivity-related genes HoxA10 (p0.2<0.001, p2=0.135, p20<0.001) and E-cadherin (p0.2=0.002, p2=0.624, p20=0.137) were changed by BaP. These results revealed that BaP can disrupt the balance of estrogen and progesterone, influence expression of their receptors and downstream related genes, lead to changes in endometrium receptivity, and reduce of the number of implantation sites.
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Affiliation(s)
- Yi Zhao
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Xuemei Chen
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Yubin Ding
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Rufei Gao
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Yiwen Qiu
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Yingxiong Wang
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Junlin He
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China.
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The impact of semen quality, occupational exposure to environmental factors and lifestyle on recurrent pregnancy loss. J Assist Reprod Genet 2013; 30:1513-8. [PMID: 24046023 DOI: 10.1007/s10815-013-0091-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 08/23/2013] [Indexed: 01/02/2023] Open
Abstract
PURPOSE This study aimed to investigate the effect of male semen quality, occupational exposure, and lifestyle on recurrent pregnancy loss (RPL). METHODS Information on couples' occupational exposure and lifestyle was collected using a detailed questionnaire from 68 RPL couples and 63 randomly selected healthy controls. Semen parameters were estimated by computer-assisted sperm analysis, and sperm nuclear status was detected with aniline blue (AB) staining. RESULTS Patients in the RPL group had significantly lower viability, normal morphology, and total progressive motility of sperm, and a higher mean percentage of AB staining positive sperm compared with those of controls (P < 0.05). There were no differences in sperm concentration, and motility between the groups (P > 0.05). Significant odds ratio (OR) was found when occupational exposure and unhealthy habits were superimposed (OR: 11.965, P = 0.005). CONCLUSIONS In addition to standard female factors for evaluating the risk for RPL, the use of male factors should also be taken into consideration. We found that sperm quality, occupational exposure, and lifestyle are factors that affect RPL. Consequently, occupational exposure and lifestyle factors should constitute an important section of questionnaires given to patients, and these factors should be evaluated by a clinician or trained staff.
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Rekhadevi PV, Diggs DL, Huderson AC, Harris KL, Archibong AE, Ramesh A. Metabolism of the environmental toxicant benzo(a)pyrene by subcellular fractions of human ovary. Hum Exp Toxicol 2013; 33:196-202. [PMID: 23703818 DOI: 10.1177/0960327113489050] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Knowledge of the ability of the female reproductive system to metabolize environmental chemicals is critical not only from the standpoint of toxicity but also from infertility risk assessment. Benzo(a)pyrene (BaP) is a toxicant that is released into the environment from automobile exhausts, cigarette smoke, burning of refuse, industrial emissions, and hazardous waste sites. In exposed animals, BaP becomes activated to reactive metabolites that interfere with target organ function and as a consequence cause toxicity. Studies on animal models conducted in our laboratories and those of others have shown that BaP possess endocrine disrupting properties. Thus, this chemical has the potential to cause infertility and cancers in the female genital tract. An understanding of BaP metabolism in the female reproductive system will be of importance in the diagnosis and management of female fertility as well as cancers in the reproductive tissues. Therefore, the objective of our study was to examine the metabolism of BaP by human ovarian subcellular fractions. Human ovary samples (eight individuals) were obtained from postoperative tissue removed from subjects with uterine tumors. Subcellular fractions (nuclear, cytosolic, mitochondrial, and microsomal) were prepared by differential centrifugation. BaP (1 μM and 3 μM) was individually incubated with individual subcellular fractions for 15 min and the products were analyzed by high-performance liquid chromatography. Among the different fractions tested, microsomal BaP metabolism was higher than the rest of the fractions. The BaP metabolites identified were as follows: BaP-9,10-diol, BaP-4,5-diol, BaP-7,8-diol, 9(OH) BaP, 3(OH) BaP, BaP-1,6-dione, BaP-3,6-dione, and BaP-6,12-dione. Of interest was the presence of DNA-reactive metabolites such as BaP-3,6-dione, BaP-6,12-dione, and BaP 7,8-diol, which have been implicated in the causation of infertility and cancer. Our results indicate that women who are exposed to BaP via cigarette smoke, occupational settings, and diet are more likely at a larger risk of this toxicant-induced infertility and cancer than others.
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Affiliation(s)
- P V Rekhadevi
- 1Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN, USA
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Safarinejad MR, Shafiei N, Safarinejad S. Polymorphisms in Aryl Hydrocarbon Receptor Gene Are Associated With Idiopathic Male Factor Infertility. Reprod Sci 2013; 20:1423-32. [DOI: 10.1177/1933719113488451] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Mohammad Reza Safarinejad
- Clinical Center for Urological Disease Diagnosis and Private Clinic Specialized in Urological and Andrological Genetics, Tehran, Iran
| | - Nayyer Shafiei
- Clinical Center for Urological Disease Diagnosis and Private Clinic Specialized in Urological and Andrological Genetics, Tehran, Iran
| | - Saba Safarinejad
- Clinical Center for Urological Disease Diagnosis and Private Clinic Specialized in Urological and Andrological Genetics, Tehran, Iran
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Abstract
ABSTRACT
Diminished ovarian reserve predicts diminished ovarian response to stimulation but does not predict cycle fecundity. It has been recently defined by ESHRE, the Bologna's criteria, according to which at least two of the following three features should be present: (1) Age >40 years/any other risk factor for DOR, (2) abnormal ovarian reserve test, i.e. antral follicle count, AMH, (3) poor ovarian response in a previous stimulated cycle, i.e. less than three follicles after standard gonadotropin stimulation. Poor response to maximal stimulation on two previous occasions also defines DOR.
The treatment options are limited. Avoiding the GnRH agonist long protocol and stimulation with microdose flare or antagonist protocol yields better results. Adjuvant therapy with LH, DHEAS and growth hormone shows some benefit in improving the oocyte yield. It is advisable to perform ICSI for all obtained oocytes and some advocate assisted hatching. Pregnancy rates are, however, poor and often these patients require ovum donation. Developing tests that will diagnose DOR in a low-risk population will allow women to plan their reproductive careers early.
How to cite this article
Kaur M, Arora M. Diminished Ovarian Reserve, Causes, Assessment and Management. Int J Infertility Fetal Med 2013;4(2):45-55.
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Endocrine disruptive actions of inhaled benzo(a)pyrene on ovarian function and fetal survival in fisher F-344 adult rats. Reprod Toxicol 2012; 34:635-43. [PMID: 23059060 DOI: 10.1016/j.reprotox.2012.09.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 09/06/2012] [Accepted: 09/18/2012] [Indexed: 01/06/2023]
Abstract
This study evaluated the effect of inhaled BaP on female reproductive function. Rats were exposed to 50, or 75 or 100 μg BaP/m(3), 4 h a day for 14 days via inhalation. Plasma E(2), P(4), LH and FSH concentrations were determined. Ovarian BaP metabolism and aryl hydrocarbon hydrolase (AHH) activity at proestrus were determined and fertility evaluations were conducted. Ovulation rate and number of pups/litter were reduced in rats exposed to 100 μg BaP/m(3) compared with other treatment and control groups. Plasma concentrations of E(2), and LH were significantly reduced at proestrus in BaP-exposed versus those of controls whereas those of P(4) were significantly reduced at diestrus I. The activity of AHH in ovarian and liver tissues and concentrations of BaP 7,8-diol and BaP 3,6-dione metabolites increased in an exposure concentration-dependent manner. These data suggest that exposure of rats to BaP prior to mating contributes to reduced ovarian function and fetal survival.
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Moran TB, Brannick KE, Raetzman LT. Aryl-hydrocarbon receptor activity modulates prolactin expression in the pituitary. Toxicol Appl Pharmacol 2012; 265:139-45. [PMID: 22975028 DOI: 10.1016/j.taap.2012.08.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 08/24/2012] [Accepted: 08/25/2012] [Indexed: 12/22/2022]
Abstract
Pituitary tumors account for 15% of intracranial neoplasms, however the extent to which environmental toxicants contribute to the proliferation and hormone expression of pituitary cells is unknown. Aryl-hydrocarbon receptor (AhR) interacting protein (AIP) loss of function mutations cause somatotrope and lactotrope adenomas in humans. AIP sequesters AhR and inhibits its transcriptional function. Because of the link between AIP and pituitary tumors, we hypothesize that exposure to dioxins, potent exogenous ligands for AhR that are persistent in the environment, may predispose to pituitary dysfunction through activation of AhR. In the present study, we examined the effect of AhR activation on proliferation and endogenous pituitary hormone expression in the GH3 rat somatolactotrope tumor cell line and the effect of loss of AhR action in knockout mice. GH3 cells respond to nM doses of the reversible AhR agonist β-naphthoflavone with a robust induction of Cyp1a1. Although mRNA levels of the anti-proliferative signaling cytokine TGFbeta1 are suppressed upon β-naphthoflavone treatment, we did not observe an alteration in cell proliferation. AhR activation with β-naphthoflavone suppresses Ahr expression and impairs expression of prolactin (PRL), but not growth hormone (GH) mRNA in GH3 cells. In mice, loss of Ahr similarly leads to a reduction in Prl mRNA at P3, while Gh is unaffected. Additionally, there is a significant reduction in pituitary hormones Lhb and Fshb in the absence of Ahr. Overall, these results demonstrate that AhR is important for pituitary hormone expression and suggest that environmental dioxins can exert endocrine disrupting effects at the pituitary.
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Affiliation(s)
- Tyler B Moran
- Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
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