1
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Yang W, Bu Q, Shi Q, Zhao R, Huang H, Yang L, Tang J, Ma Y. Emerging Contaminants in the Effluent of Wastewater Should Be Regulated: Which and to What Extent? TOXICS 2024; 12:309. [PMID: 38787088 PMCID: PMC11125804 DOI: 10.3390/toxics12050309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/22/2024] [Accepted: 04/22/2024] [Indexed: 05/25/2024]
Abstract
Effluent discharged from urban wastewater treatment plants (WWTPs) is a major source of emerging contaminants (ECs) requiring effective regulation. To this end, we collected discharge datasets of pharmaceuticals (PHACs) and endocrine-disrupting chemicals (EDCs), representing two primary categories of ECs, from Chinese WWTP effluent from 2012 to 2022 to establish an exposure database. Moreover, high-risk ECs' long-term water quality criteria (LWQC) were derived using the species sensitivity distribution (SSD) method. A total of 140 ECs (124 PHACs and 16 EDCs) were identified, with concentrations ranging from N.D. (not detected) to 706 μg/L. Most data were concentrated in coastal regions and Gansu, with high ecological risk observed in Gansu, Hebei, Shandong, Guangdong, and Hong Kong. Using the assessment factor (AF) method, 18 high-risk ECs requiring regulation were identified. However, only three of them, namely carbamazepine, ibuprofen, and bisphenol-A, met the derivation requirements of the SSD method. The LWQC for these three ECs were determined as 96.4, 1010, and 288 ng/L, respectively. Exposure data for carbamazepine and bisphenol-A surpassed their derived LWQC, indicating a need for heightened attention to these contaminants. This study elucidates the occurrence and risks of ECs in Chinese WWTPs and provides theoretical and data foundations for EC management in urban sewage facilities.
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Affiliation(s)
- Weiwei Yang
- School of Chemical & Environmental Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China (Q.S.)
| | - Qingwei Bu
- School of Chemical & Environmental Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China (Q.S.)
| | - Qianhui Shi
- School of Chemical & Environmental Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China (Q.S.)
| | - Ruiqing Zhao
- School of Chemical & Environmental Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China (Q.S.)
| | - Haitao Huang
- School of Chemical & Environmental Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China (Q.S.)
| | - Lei Yang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jianfeng Tang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yuning Ma
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
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2
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Yamamoto M, Kanazawa N, Nomura M, Horie Y, Okamura H. Bisphenol A alters sexual dimorphism and gene expression in marine medaka Oryzias melastigma. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:25691-25700. [PMID: 36346516 DOI: 10.1007/s11356-022-23863-3] [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: 03/25/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Bisphenol A (BPA) is an endocrine disruptor that is present in freshwater and marine environments. However, conclusive evidence for the toxicity of chronic BPA exposure to marine fishes remains lacking. Therefore, we investigated the influence of BPA on male marine medaka (Oryzias melastigma). BPA exposure induced formation of testis-ova at 2610 µg/L, and male-type anal fins became more female type in a concentration-dependent manner. Some males with female-type anal fins had normal testes, indicating that anal fin shape is more sensitive to BPA. Gonadal soma-derived factor (gsdf) expression decreased after BPA exposure in the 746 and 2610 µg/L exposure groups, although the changes were not statistically significant. Additionally, liver vitellogenin (vtg) expression increased in a dose-dependent manner and was significantly higher in all exposure groups. vtg and gsdf are likely to be useful biomarkers for the impact of estrogenic endocrine disrupters in O. melastigma.
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Affiliation(s)
- Mitsushi Yamamoto
- Division of Ocean Safety Systems Science, Faculty of Maritime Sciences, Kobe University, 5-1-1 Fukaeminami, Higashinada, Kobe, 658-0022, Japan
| | - Nobuhiro Kanazawa
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi, Nakano Shimoshinjo, Akita, 010-0195, Japan
| | - Miho Nomura
- Graduate School of Maritime Science, Kobe University, Fukaeminami-machi, Higashinada-ku, Kobe, Japan
| | - Yoshifumi Horie
- Research Center for Inland Sea (KURCIS), Kobe University, 5-1-1 Fukaeminami, Higashinada, Kobe, 658-0022, Japan.
| | - Hideo Okamura
- Research Center for Inland Sea (KURCIS), Kobe University, 5-1-1 Fukaeminami, Higashinada, Kobe, 658-0022, Japan
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3
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Amin MAS, Sonpol HMA, Gouda RHE, Aboregela AM. Bisphenol A enhances apoptosis, fibrosis, and biochemical fluctuations in the liver of adult male rats with possible regression after recovery. Anat Rec (Hoboken) 2023; 306:213-225. [PMID: 35773941 DOI: 10.1002/ar.25032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/12/2022] [Accepted: 06/17/2022] [Indexed: 01/29/2023]
Abstract
Bisphenol A (BPA) is an environmental contaminant that might be harmful. Human exposure to BPA can occur during the fetal and postnatal periods and extends throughout life. This study aimed to estimate the effects of oral administration of BPA on rat liver and assess the possibility of recovery after cessation. Adult male albino rats were orally administered with BPA (50 mg/kg body weight) for 8 weeks, and then one group was left to recover for 4 weeks. Histological, immunohistochemical, biochemical, and quantitative real-time polymerase chain reaction assessments were performed. Loss of hepatic architecture, vascular dilatation congestion, and exudation, as well as cellular vacuolation, fat accumulation, and pyknotic nuclei were detected. Furthermore, inflammatory infiltration, localized metaplasia, and excessive collagen deposition in the portal triad were observed. Expression of Bcl-2-associated X protein and transforming growth factor beta 1 was prominent, denoting apoptosis and fibrosis. After the administration of BPA, serum levels of alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, total bilirubin, cholesterol, triglycerides, and low-density lipoproteins were enhanced. Additionally, total protein, albumin, and high-density lipoproteins decreased. After a recovery for 4 weeks, hepatic cellular and vascular pathologies returned to normal, except for some inflammatory infiltration. Regarding biochemical affection, most of the parameters were directed toward normal during recovery. However, most of them were still significantly different from controls. This explored BPA hepatotoxicity from structural and functional aspects, and the possible spontaneous reversibility was confirmed. However, the precise mechanisms underlying hepatotoxicity or recovery need more in-depth investigations.
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Affiliation(s)
| | - Hany M A Sonpol
- Human Anatomy and Embryology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Basic Medical Sciences Department, College of Medicine, University of Bisha, Bisha, Kingdom of Saudi Arabia
| | - Rehab Hassan Elbanna Gouda
- Medical Biochemistry Unit, Zagazig Scientific and Medical Research Center, Zagazig University, Zagazig, Egypt
| | - Adel Mohamed Aboregela
- Human Anatomy and Embryology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt.,Basic Medical Sciences Department, College of Medicine, University of Bisha, Bisha, Kingdom of Saudi Arabia
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4
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Golshan M, Hatef A, Kazori N, Socha M, Sokołowska-Mikołajczyk M, Habibi HR, Linhart O, Alavi SMH. A chronic exposure to bisphenol A reduces sperm quality in goldfish associated with increases in kiss2, gpr54, and gnrh3 mRNA and circulatory LH levels at environmentally relevant concentrations. Comp Biochem Physiol C Toxicol Pharmacol 2022; 257:109342. [PMID: 35417786 DOI: 10.1016/j.cbpc.2022.109342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 11/17/2022]
Abstract
The bisphenol A (BPA)-disrupted reproductive functions have been demonstrated in male animals. In fish, it has been shown that environmentally relevant concentrations of BPA decrease sperm quality associated with inhibition of androgen biosynthesis. However, BPA effects on neuroendocrine regulation of reproduction to affect testicular functions are largely unknown. In the present study, reproductive functions of hypothalamus and pituitary were studied in mature male goldfish exposed to nominal 0.2, 2.0 and 20.0 μg/L BPA. At 90 d of exposure, sperm volume, velocity, and density and motility were decreased in goldfish exposed to 0.2, 2.0, and 20.0 μg/L BPA, respectively (p < 0.05). At 30 d of exposure, there were no significant changes in circulatory LH levels and mRNA transcripts of kiss1, Kiss2, gpr54, and gnrh3. At 90 d of exposure, circulatory LH levels showed trends toward increases in BPA exposed goldfish, which was significant in those exposed to 2.0 μg/L (P < 0.05). At this time, Kiss2, gpr54, and gnrh3 mRNA levels were increased in goldfish exposed to any concentrations of BPA (p < 0.05). This study shows that BPA-diminished sperm quality was accompanied by an increase in circulatory LH levels associated with increases in mRNA transcripts of upstream neuroendocrine regulators of reproduction in goldfish. Further, this is the first study to report circulatory levels of LH in fish exposed to BPA.
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Affiliation(s)
- Mahdi Golshan
- Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization, 133-15745 Tehran, Iran
| | - Azadeh Hatef
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5B3, Canada
| | - Negar Kazori
- School of Biology, College of Science, University of Tehran, 14155-6455 Tehran, Iran
| | - Magdalena Socha
- Faculty of Animal Sciences, University of Agriculture in Kraków, Kraków 30-059, Poland
| | | | - Hamid R Habibi
- Department of Biological Sciences, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Otomar Linhart
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Vodňany 389 25, Czech Republic
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5
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Moreira CG, de Souza LC, Castor Neto TC, Gomes G, Bila DM, Fonseca FV. Combined reverse osmosis and UV/H 2O 2 treatment of aqueous solutions of bisphenol A and 17α-ethinylestradiol: assessment of estrogenic activity. ENVIRONMENTAL TECHNOLOGY 2022:1-13. [PMID: 35259064 DOI: 10.1080/09593330.2022.2051608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/21/2022] [Indexed: 06/14/2023]
Abstract
Bisphenol-A (BPA) and 17α-ethinylestradiol (EE2) are considered endocrine disrupting compounds (EDC) and they may be harmful to the normal functioning of endocrine systems of humans and animals. Moreover, the presence of these compounds in superficial and groundwater may represent serious risks, even in low concentrations like ng·L-1. The objectives of this study were to remove BPA and EE2 from solutions containing a mixture of these compounds in ultrapure water at low concentrations through reverse osmosis (RO) membrane combined with a UV/H2O2 process. Furthermore, to assess the estrogenic activity reduction after such treatments, in vitro recombinant yeast-estrogen screen (YES) assay was used. The removal efficiencies of target micropollutants increased with the increase of H2O2 dosage. For RO permeate stream, they enhanced from 91% to 96% for EE2 and from 76% to 90% for BPA while, for the concentrate stream, from 70% to 81% for EE2 and 41% to 84% for BPA as the H2O2 concentration were increased from 100 to 1000 µg·L-1. The OH radicals' generation was the dominant factor in the degradation of EDC during the UV/H2O2 treatment since the photolysis itself was not enough to degrade BPA or EE2. The estrogenic activity reduction after UV/H2O2 treatment was high, ranging from 92% to 98% for the permeate stream and from 50% to 93% for the concentrate stream. The EE2 was responsible for the whole observed estrogenic activity since BPA does not present estrogenicity, by in vitro YES assay, in the concentrations observed.
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Affiliation(s)
- Carolina G Moreira
- School of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Larissa C de Souza
- School of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Giselle Gomes
- Engineering college, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Daniele M Bila
- Engineering college, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fabiana V Fonseca
- School of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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6
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Kawashima Y, Onishi Y, Tatarazako N, Yamamoto H, Koshio M, Oka T, Horie Y, Watanabe H, Nakamoto T, Yamamoto J, Ishikawa H, Sato T, Yamazaki K, Iguchi T. Summary of 17 chemicals evaluated by OECD TG229 using Japanese Medaka, Oryzias latipes in EXTEND 2016. J Appl Toxicol 2021; 42:750-777. [PMID: 34725835 PMCID: PMC9297976 DOI: 10.1002/jat.4255] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/13/2021] [Accepted: 09/25/2021] [Indexed: 11/07/2022]
Abstract
In June 2016, the Ministry of the Environment of Japan announced a program "EXTEND2016" on the implementation of testing and assessment for endocrine active chemicals, consisting of a two-tiered strategy. The aim of the Tier 1 screening and the Tier 2 testing is to identify the impacts on the endocrine system and to characterize the adverse effects to aquatic animals by endocrine disrupting chemicals detected in the aquatic environment in Japan. For the consistent assessment of the effects on reproduction associated with estrogenic, anti-estrogenic, androgenic, and/or anti-androgenic activities of chemicals throughout Tier 1 screening to Tier 2 testing, a unified test species, Japanese medaka (Oryzias latipes), has been used. For Tier 1 screening, the in vivo Fish Short-Term Reproduction Assay (OECD test guideline No. 229) was conducted for 17 chemicals that were nominated based on the results of environmental monitoring, existing knowledge obtained from a literature survey, and positive results in reporter gene assays using the estrogen receptor of Japanese medaka. In the 17 assays using Japanese medaka, adverse effects on reproduction (i.e., reduction in fecundity and/or fertility) were suggested for 10 chemicals, and a significant increase of hepatic vitellogenin in males, indicating estrogenic (estrogen receptor agonistic) potency, was found for eight chemicals at the concentrations in which no overt toxicity was observed. Based on these results, and the frequency and the concentrations detected in the Japanese environment, estrone, 4-nonylphenol (branched isomers), 4-tert-octylphenol, triphenyl phosphate, and bisphenol A were considered as high priority candidate substances for the Tier 2 testing.
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Affiliation(s)
- Yukio Kawashima
- Environmental Consulting Department, Japan NUS Co., Tokyo, Japan
| | - Yuta Onishi
- Institute of Environmental Ecology, IDEA Consultants, Inc., Shizuoka, Japan
| | - Norihisa Tatarazako
- Department of Science and Technology for Biological Resources and Environment, Graduate School of Agriculture, Ehime University, Matsuyama, Japan.,Health and Environmental Risk Division, National Institute for Environmental Studies, Tsukuba, Japan
| | | | - Masaaki Koshio
- Health and Environmental Risk Division, National Institute for Environmental Studies, Tsukuba, Japan
| | - Tomohiro Oka
- Health and Environmental Risk Division, National Institute for Environmental Studies, Tsukuba, Japan.,Resources Recycling Center, Japan Environmental Management Association for Industry, Tokyo, Japan
| | - Yoshifumi Horie
- Health and Environmental Risk Division, National Institute for Environmental Studies, Tsukuba, Japan.,Research Center for Inland Sea (KURCIS), Kobe University, Kobe, Japan
| | - Haruna Watanabe
- Health and Environmental Risk Division, National Institute for Environmental Studies, Tsukuba, Japan
| | - Takashi Nakamoto
- Institute of Environmental Ecology, IDEA Consultants, Inc., Shizuoka, Japan
| | - Jun Yamamoto
- Institute of Environmental Ecology, IDEA Consultants, Inc., Shizuoka, Japan
| | - Hidenori Ishikawa
- Institute of Environmental Ecology, IDEA Consultants, Inc., Shizuoka, Japan
| | - Tomomi Sato
- Nanobioscience Department, Yokohama City University, Yokohama, Japan
| | - Kunihiko Yamazaki
- Environmental Health Department, Ministry of the Environment of Japan, Tokyo, Japan
| | - Taisen Iguchi
- Nanobioscience Department, Yokohama City University, Yokohama, Japan
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7
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Moraes ACN, Fallah HP, Magalhães VF, Habibi HR. Cylindrospermopsin directly disrupts spermatogenesis in isolated male zebrafish testis. Gen Comp Endocrinol 2021; 313:113891. [PMID: 34428427 DOI: 10.1016/j.ygcen.2021.113891] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 02/07/2023]
Abstract
Cylindrospermopsin (CYN) is a cytotoxin, and its documented effects in mammals include damage to several organs. CYN also has hormone-disrupting properties, including estrogenic activity, progesterone production inhibition, and apoptosis induction. While CYN has been reported to exert reproductive toxicity in mice, little is known about its effect on fish reproductive function. Using ex vivo organ culture, we investigated the direct action of CYN on the male reproductive system. Isolated zebrafish testis was exposed to 250, 500, and 1000 µg/L CYN for 24 h and 7 d, followed by histo-morphological analysis. The results demonstrate that exposure to CYN led to a decrease in cell types from all three phases of spermatogenesis in zebrafish testis. There were also significant changes in fshr, lhr, and igf3 transcript levels, as well as testosterone secretion following exposure to CYN. In summary, this study provides novel information on the adverse effects of CYN on testicular spermatogenesis and male reproduction in zebrafish. These results provide a framework for a better understanding of CYN toxicity and the mechanism underlying the adverse action of CYN on male reproduction in fish.
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Affiliation(s)
- A C N Moraes
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; Department of Biological Science, University of Calgary, Calgary, Alberta, Canada
| | - H P Fallah
- Department of Biological Science, University of Calgary, Calgary, Alberta, Canada
| | - V F Magalhães
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - H R Habibi
- Department of Biological Science, University of Calgary, Calgary, Alberta, Canada.
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8
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Ferreira MF, Lo Nostro FL, Fernández DA, Genovese G. Endocrine disruption in the sub Antarctic fish Patagonotothen tessellata (Perciformes, Notothenidae) from Beagle Channel associated to anthropogenic impact. MARINE ENVIRONMENTAL RESEARCH 2021; 171:105478. [PMID: 34562790 DOI: 10.1016/j.marenvres.2021.105478] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Situated in the sub-Antarctic region, Beagle Channel represents a unique marine ecosystem due to the connection between the Pacific and the Atlantic Oceans, and its proximity to the Antarctic Peninsula. Ushuaia city, the biggest settlement on the channel, exerts an increasing anthropogenic pressure by discharges of urban and industrial effluents. In the present work, we use Patagonotothen tessellata, one of the most abundant and widespread species in the channel, as a bioindicator species in order to evidence anthropic impact from Ushuaia Bay and surrounding areas. We first analyzed and characterized real time gene expression of androgen receptor, estrogen receptor and different forms of vitellogenin (VTG), under laboratory conditions. This was achieved by induction with estradiol of P. tessellata males. Then, the selected genes were used as biomarkers for an environmental biomonitoring study. Morphometric indices and circulating sex steroids (estradiol and testosterone) were also quantified in male fish collected from different sites. The qPCR analysis showed that vtgAb form is more inducible than vtgAa or vtgC forms after estrogen induction. The field survey revealed the up-regulation of vtgAb and the androgen receptor in fish from sites with higher anthropogenic influence. Sex steroids followed seasonal variations according to their reproductive cycle, with higher levels of estradiol and testosterone in winter and summer seasons. The use of biomarkers such as gene expression of VTG demonstrates that fish from Ushuaia Bay are likely to be exposed to endocrine disrupting compounds. To our knowledge, this research is the first attempt to assess the endocrine disruption associated to anthropic impact in a widespread fish of the Beagle Channel and contributes to a better understanding of the reproductive physiology of sub Antarctic ichthyofauna.
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Affiliation(s)
- Maria Florencia Ferreira
- CONICET-Universidad de Buenos Aires. Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA, CONICET-UBA), Laboratorio de Ecotoxicología Acuática, Buenos Aires, Argentina
| | - Fabiana L Lo Nostro
- CONICET-Universidad de Buenos Aires. Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA, CONICET-UBA), Laboratorio de Ecotoxicología Acuática, Buenos Aires, Argentina; Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental, Laboratorio de Ecotoxicología Acuática, Buenos Aires, Argentina.
| | - Daniel A Fernández
- Universidad Nacional de Tierra Del Fuego, Instituto de Ciencias Polares, Ambiente y Recursos Naturales (ICPA-UNTDF), Ushuaia, Argentina; Centro Austral de Investigaciones Científicas (CADIC-CONICET), Laboratorio de Ecología, Fisiología y Evolución de Organismos Acuáticos (LEFyE), Ushuaia, Argentina
| | - Griselda Genovese
- CONICET-Universidad de Buenos Aires. Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA, CONICET-UBA), Laboratorio de Ecotoxicología Acuática, Buenos Aires, Argentina; Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental, Laboratorio de Ecotoxicología Acuática, Buenos Aires, Argentina
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9
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Bottalico LN, Korlyakova J, Weljie AM, Habibi HR. Seasonally Related Disruption of Metabolism by Environmental Contaminants in Male Goldfish ( Carassius auratus). FRONTIERS IN TOXICOLOGY 2021; 3:750870. [PMID: 35295106 PMCID: PMC8915895 DOI: 10.3389/ftox.2021.750870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 09/13/2021] [Indexed: 12/24/2022] Open
Abstract
Endocrine disrupting chemicals mimic or disrupt action of the natural hormones, adversely impacting hormonal function as well as cardiovascular, reproductive, and metabolic health. Goldfish are seasonal breeders with an annual reproductive cycle regulated by neuroendocrine signaling which involves allocation of metabolic energy to sustain growth and reproduction. We hypothesize that seasonal changes in physiology alter overall vulnerability of goldfish to metabolic perturbation induced by environmental contaminants. In this study, we assess effects of endogenous hormones, individual contaminants and their mixture on metabolism of goldfish at different reproductive stages. Exposure effects were assessed using 1H-NMR metabolomics profiling of male goldfish midbrain, gonad and liver harvested during early recrudescence (October), mid-recrudescence (February) and late recrudescence (June). Compounds assessed include bisphenol A, nonylphenol, bis(2-ethylhexyl) phthalate, fucosterol and a tertiary mixture (DEHP + NP + FS). Metabolome-level responses induced by contaminant exposure across tissues and seasons were benchmarked against responses induced by 17β-estradiol, testosterone and thyroid hormone (T3). We observe a clear seasonal dependence to metabolome-level alteration induced by hormone or contaminant exposures, with February (mid-recrudescence) the stage at which male goldfish are most vulnerable to metabolic perturbation. Responses induced by contaminant exposures differed from those induced by the natural hormones in a season-specific manner. Exposure to the tertiary mixture induced a functional gain at the level of biochemical pathways modeling over responses induced by individual components in select tissues and seasons. We demonstrate the importance of seasonally driven changes in physiology altering overall vulnerability of goldfish to metabolic perturbation induced by environmental contaminants, the relevance of which likely extends to other seasonally-breeding species.
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Affiliation(s)
- Lisa N. Bottalico
- Department of Systems Pharmacology and Translational Therapeutics, Center of Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Julia Korlyakova
- Department of Biological Sciences, University of Calgary, Calgary, AB, Canada
| | - Aalim M. Weljie
- Department of Systems Pharmacology and Translational Therapeutics, Center of Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Hamid R Habibi
- Department of Biological Sciences, University of Calgary, Calgary, AB, Canada,*Correspondence: Hamid R Habibi,
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10
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Alavi SMH, Barzegar-Fallah S, Rahdar P, Ahmadi MM, Yavari M, Hatef A, Golshan M, Linhart O. A Review on Environmental Contaminants-Related Fertility Threat in Male Fishes: Effects and Possible Mechanisms of Action Learned from Wildlife and Laboratory Studies. Animals (Basel) 2021; 11:2817. [PMID: 34679838 PMCID: PMC8532744 DOI: 10.3390/ani11102817] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/14/2021] [Accepted: 09/19/2021] [Indexed: 12/14/2022] Open
Abstract
Increasing global rates of diminished fertility in males has been suggested to be associated with exposure to environmental contaminants (ECs). The aquatic environments are the final repository of ECs. As the reproductive system is conserved in vertebrates, studies on the effects of ECs on fertility endpoints in fishes provide us with valuable information to establish biomarkers in risk assessment of ECs, and to understand the ECs-related fertility threat. The aim of the present review was to evaluate associations between ECs and fertility determinants to better understand ECs-related male fertility threat in male fishes. Wildlife studies show that the reproductive system has been affected in fishes sampled from the polluted aquatic environment. The laboratory studies show the potency of ECs including natural and synthetic hormones, alkylphenols, bisphenols, plasticizers, pesticides, pharmaceutical, alkylating, and organotin agents to affect fertility determinants, resulting in diminished fertility at environmentally relevant concentrations. Both wildlife and laboratory studies reveal that ECs adverse effects on male fertility are associated with a decrease in sperm production, damage to sperm morphology, alternations in sperm genome, and decrease in sperm motility kinetics. The efficiency of ECs to affect sperm quality and male fertility highly depends on the concentration of the contaminants and the duration of exposure. Our review highlights that the number of contaminants examined over fertility tests are much lower than the number of contaminants detected in our environment. The ECs effects on fertility are largely unknown when fishes are exposed to the contaminants at early developmental stages. The review suggests the urgent need to examine ECs effects on male fertility when a fish is exposed at different developmental stages in a single or combination protocol. The ECs effects on the sperm genome are largely unknown to understand ECs-related inheritance of reproductive disorders transmitted to the progeny. To elucidate modes of action of ECs on sperm motility, it is needed to study functional morphology of the motility apparatus and to investigate ECs-disrupted motility signaling.
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Affiliation(s)
- Sayyed Mohammad Hadi Alavi
- School of Biology, College of Science, University of Tehran, Tehran P.O. Box 14155-6655, Iran; (S.B.-F.); (P.R.); (M.M.A.); (M.Y.)
| | - Sepideh Barzegar-Fallah
- School of Biology, College of Science, University of Tehran, Tehran P.O. Box 14155-6655, Iran; (S.B.-F.); (P.R.); (M.M.A.); (M.Y.)
| | - Parastoo Rahdar
- School of Biology, College of Science, University of Tehran, Tehran P.O. Box 14155-6655, Iran; (S.B.-F.); (P.R.); (M.M.A.); (M.Y.)
| | - Mohammad Mahdi Ahmadi
- School of Biology, College of Science, University of Tehran, Tehran P.O. Box 14155-6655, Iran; (S.B.-F.); (P.R.); (M.M.A.); (M.Y.)
| | - Mina Yavari
- School of Biology, College of Science, University of Tehran, Tehran P.O. Box 14155-6655, Iran; (S.B.-F.); (P.R.); (M.M.A.); (M.Y.)
| | - Azadeh Hatef
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada;
| | - Mahdi Golshan
- Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization, Tehran P.O. Box 15745-133, Iran;
| | - Otomar Linhart
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, 389 25 Vodňany, Czech Republic;
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11
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Zhu L, Wang L, Fan X, Dong C, Wang G, Wang Z. Chronic exposure to Bisphenol A resulted in alterations of reproductive functions via immune defense, oxidative damage and disruption DNA/histone methylation in male rare minnow Gobiocypris rarus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 236:105849. [PMID: 34010735 DOI: 10.1016/j.aquatox.2021.105849] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 03/28/2021] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
Bisphenol A (BPA) is a widely used chemical that represents a reproductive hazard in fish. However, the molecular pathways mediating reproductive toxicity under chronic BPA exposure remain unclear. To study the reproductive hazards associated with chronic BPA exposure, adult male rare minnows (Gobiocypris rarus) were treated with 15 μg L - 1 and 225 μg L - 1 BPA for 90 days. Results showed that chronic BPA treatment induced reproductive impairments with decreased fertilization capacity and movement time of sperm. Transcriptome analysis indicated 1421 transcripts that were differentially expressed in response to BPA exposure, which are involved in the biological process of oxidative stress, immune responses and DNA/histone methylation. BPA caused the oxidative stress via significantly increasing hydrogen peroxide (H2O2) levels and inhibiting the activities of antioxidant-related enzymes (Catalase, CAT). BPA caused an inflammatory response in the testes by significantly increasing IL-1β levels and inducing infiltration of inflammatory cells. Moreover, exposure to 15 μg L - 1 BPA significantly decreased the genomic DNA methylation level. These data revealed that chronic BPA exposure had adverse effects on male reproduction. Oxidative stress, inflammatory response and DNA/histone methylation might account for the decreased sperm quality.
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Affiliation(s)
- Long Zhu
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi 712100 China
| | - Lihong Wang
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi 712100 China
| | - Xiaoteng Fan
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi 712100 China
| | - Chenglong Dong
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi 712100 China
| | - Gaoxue Wang
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi 712100 China..
| | - Zaizhao Wang
- College of Animal Science and Technology, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi 712100 China..
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12
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Liu Y, Wu Y, Qin G, Chen Y, Wang X, Lin Q. Bioaccumulation and reproductive toxicity of bisphenol A in male-pregnant seahorse (Hippocampus erectus) at environmentally relevant concentrations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 753:141805. [PMID: 32911163 DOI: 10.1016/j.scitotenv.2020.141805] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/07/2020] [Accepted: 08/17/2020] [Indexed: 06/11/2023]
Abstract
Seahorses, with brood pouch in adult males, are a bioindicator species that exhibit specialized reproductive strategy of "male pregnancy". Bisphenol A (BPA), one of the most pervasive endocrine-disrupting chemicals (EDCs), is hazardous for reproductive, immune, and neurological systems. However, no evidence of BPA toxicity to the male-pregnant animals is available. Herein, the reproductive toxicity of BPA was evaluated in lined seahorses (Hippocampus erectus) following exposure to environmentally relevant concentrations (10, 100, and 1000 μg/L) through physiological, histological, and transcriptional analyses. Our results indicated BPA bioaccumulation to be positively correlated with exposure doses in both sexes. Ovarian failure was only observed in the high-dose BPA treatment group, accompanied by the apoptosis of follicular cells and up-regulation of pro-apoptotic genes. However, brood pouches maintenance were surprisingly inhibited at low concentration, and transcriptomic analysis revealed disturbed profiles of genes involved in the extracellular matrix and cell-cell adhesion pathways. Interestingly, seahorse testes were less sensitive to BPA exposure than that in other teleosts. Thus, our study suggests that BPA at environmentally relevant concentrations might cause reproductive dysfunction in seahorses, potentially exerting adverse effects on the seahorse population since most of them inhabit shallow coastal areas with prevalent estrogenic contaminants.
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Affiliation(s)
- Yali Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, PR China
| | - Yongli Wu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Geng Qin
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, PR China
| | - Yu Chen
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, PR China
| | - Xin Wang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, PR China
| | - Qiang Lin
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China.
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13
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Forner-Piquer I, Beato S, Piscitelli F, Santangeli S, Di Marzo V, Habibi HR, Maradonna F, Carnevali O. Effects of BPA on zebrafish gonads: Focus on the endocannabinoid system. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 264:114710. [PMID: 32417572 DOI: 10.1016/j.envpol.2020.114710] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/23/2020] [Accepted: 04/29/2020] [Indexed: 06/11/2023]
Abstract
Bisphenol A (BPA), a monomer used for polycarbonate manufacture, has been widely reported as an endocrine-disrupting chemical (EDC). Among other alterations, BPA induces reproductive dysfunctionalities. Changes in the endocannabinoid system (ECS) have been recently shown to be associated with reproductive disorders. The ECS is a lipid-based signaling system (cannabinoid receptors, endocannabinoids and enzymatic machinery) involved in several physiological functions. The main goal of the present study was to assess the effects of two environmental concentrations of BPA (10 and 20 μg/L) on the ECS in 1-year old zebrafish gonads. In males, BPA increased the gonadosomatic index (GSI) and altered testicular levels of endocannabinoids as well as reduced the testicular area occupied by spermatogonia. In male liver, exposure to 20 μg/L BPA significantly increased vitellogenin (vtg) transcript levels. In female zebrafish, BPA altered ovarian endocannabinoid levels, elevated hepatic vtg mRNA levels as well as increased the percentage of vitellogenic oocytes in the ovaries. In conclusion, exposure to two environmentally relevant concentrations of BPA altered the ECS and consequently, gonadal function in both male and female zebrafish.
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Affiliation(s)
- Isabel Forner-Piquer
- Dipartimento Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - Silvia Beato
- Dipartimento Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - Fabiana Piscitelli
- Endocannabinoid Research Group, Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Via Campi Flegrei, 80078, Pozzuoli, Italy
| | - Stefania Santangeli
- Dipartimento Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - Vincenzo Di Marzo
- Endocannabinoid Research Group, Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Via Campi Flegrei, 80078, Pozzuoli, Italy; Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health, Université Laval, Quebec City, Canada
| | - Hamid R Habibi
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Francesca Maradonna
- Dipartimento Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy; INBB - Consorzio Interuniversitario di Biosistemi e Biostrutture, 00136, Roma, Italy
| | - Oliana Carnevali
- Dipartimento Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy; INBB - Consorzio Interuniversitario di Biosistemi e Biostrutture, 00136, Roma, Italy.
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14
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Çiğ B, Yildizhan K. Resveratrol diminishes bisphenol A-induced oxidative stress through TRPM2 channel in the mouse kidney cortical collecting duct cells. J Recept Signal Transduct Res 2020; 40:570-583. [PMID: 32515636 DOI: 10.1080/10799893.2020.1769657] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Bisphenol A (BisPH-A) is a latent danger that threatens our health, which we frequently exposure in our modern life (e.g. the widespread use of drinking water in plastic pet bottles). But the BisPH-A induced transient receptor potential melastatin 2 (TRPM2)-mediated oxidative stress and apoptosis in these cells has not been studied yet. Calcium (Ca2+) plays an important role in a versatile intracellular signal transduction that works over a wide range to regulate oxidative stress processes. TRPM2 is activated by oxidative stress and it has emerged as an important Ca2+ signaling mechanism in a variety of cells, contributing many cellular functions including cell death. Resveratrol (RESV), which belongs to the polyphenol group, acts as an antioxidant, eliminating cellular oxidative stress and increasing the body's resistance to diseases. The current study aimed to elucidate the effect of antioxidant resveratrol on TRPM2-mediated oxidative stress induced by BisPH-A exposure in the mouse kidney cortical collecting duct cells (mpkCCDcl4). The cells were divided into four groups as control, resveratrol (50 µM for 24 h), BisPH-A (100 µM for 24 h) and BisPH-A + RESV. Intracellular free Ca2+ concentrations and TRPM2 channel currents were high in BisPH-A treated cells, but decreased with resveratrol treatment. In addition, BisPH-A induced mitochondrial membrane depolarization, reactive oxygen species (ROS), caspase 3, caspase 9 and apoptosis values were decreased by the resveratrol treatment. In conclusion, resveratrol protected cells from BisPH-A induced oxidative damage. In this study, we showed that TRPM2 channel mediates this protective effect of resveratrol.
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Affiliation(s)
- Bilal Çiğ
- Department of Physiology, Faculty of Medicine, Ahi Evran University, Kirsehir, Turkey
| | - Kenan Yildizhan
- Department of Biophysics, Faculty of Medicine, Van Yuzuncu Yil University, Van, Turkey
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15
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Jung JW, Kang JS, Choi J, Park JW. Chronic toxicity of endocrine disrupting chemicals used in plastic products in Korean resident species: Implications for aquatic ecological risk assessment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 192:110309. [PMID: 32061985 DOI: 10.1016/j.ecoenv.2020.110309] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 01/30/2020] [Accepted: 02/05/2020] [Indexed: 06/10/2023]
Abstract
In this study, chronic toxicity of three endocrine disrupting chemicals (EDCs) used to make plastic products (i.e., bisphenol A (BPA), bis(2-ethylhexyl)phthalate (DEHP) and nonylphenol (NP)) in a Korean resident fish (Cyprinus carpio), crustacean (Moina macrocopa) and green alga (Pseudokirchneriella subcapitata) species was tested. It was found that M. macrocopa was particularly sensitive to those EDCs, especially DEHP and NP. We exposed M. macrocopa to DEHP (0.0012-0.1 mg/L) and NP (0.00037-0.03 mg/L), and as a result, both chemicals significantly delayed the first day of reproduction. The no observed effect concentrations (NOECs) of DEHP and NP for this endpoint were determined to be 0.0012 and 0.00037 mg/L, respectively, which are far lower than NOECs for any other freshwater species. Existing water quality criteria of various governmental agencies do not consider the toxicity of those EDCs on M. macrocopa, and thus, use of the existing criteria for the risk assessment of the Korean freshwater environment may underestimate the ecological risk. This study recommends using the water quality criteria derived in this study (0.95 μg/L for DEHP and 0.16 μg/L for NP) based on the chronic toxicity data on Korean resident species including M. macrocopa for the aquatic ecological risk assessment in Korea rather than adopting the existing water quality criteria.
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Affiliation(s)
- Jae-Woong Jung
- Department of Environmental Toxicology and Chemistry, Korea Institute of Toxicology, Jinju, 52834, South Korea
| | - Jae-Soon Kang
- Department of Environmental Toxicology and Chemistry, Korea Institute of Toxicology, Jinju, 52834, South Korea; Department of Anatomy and Convergence Medical Science, Institute of Health Science, Bio Anti-aging Medical Research Center, Gyeongsang National University Medical School, Jinju, 52727, South Korea
| | - Jinsoo Choi
- Department of Environmental Toxicology and Chemistry, Korea Institute of Toxicology, Jinju, 52834, South Korea
| | - June-Woo Park
- Department of Environmental Toxicology and Chemistry, Korea Institute of Toxicology, Jinju, 52834, South Korea; Human and Environmental Toxicology Program, Korea University of Science and Technology (UST), 217, Gajeong-ro, Daejeon, 34113, South Korea.
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16
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Yuan C, Zhang C, Qi Y, Li D, Hu Y, Huang D. 2,4-Dichlorophenol induced feminization of zebrafish by down-regulating male-related genes through DNA methylation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 189:110042. [PMID: 31816500 DOI: 10.1016/j.ecoenv.2019.110042] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 11/28/2019] [Accepted: 11/30/2019] [Indexed: 06/10/2023]
Abstract
2,4-Dichlorophenol (2,4-DCP) is ubiquitous in aquatic environment and has potential estrogenic effect on fish. However, the effect of 2,4-DCP on sex differentiation of zebrafish (Danio rerio) and the underlying mechanism are largely unknown. To address these questions, zebrafish larvae at 20 or 30 days post fertilization (dpf) were exposed to 2,4-DCP (0, 80 and 160 μg L-1) with/without 5-aza-2'-deoxycytidine (5AZA, 50 μg L-1) for 10 days. The sex ratios and the expressions of male-related genes including amh, gata4, nr5a1a, nr5a2 and sox9a were analyzed. In addition, the DNA methylation levels of amh, nr5a2 and sox9a were examined. The results showed that 2,4-DCP exposure resulted in significant increase of female ratios both in 20-30 and 30-40 dpf groups. Correspondingly, the expressions of gata4, nr5a1a, nr5a2 and sox9a were decreased by 2,4-DCP exposure in two treatment periods. However, the transcript of amh was decreased by 2,4-DCP exposure only from 30 to 40 dpf. The DNA methylation levels of amh, nr5a2 and sox9a were increased following 2,4-DCP exposure. Moreover, the addition of 5AZA could counteract the effects including feminization, disturbance of gene expression and DNA hypermethylation caused by 2,4-DCP. These results indicated that the feminizing effect of 2,4-DCP was accomplished by regulating the expression of male-related genes through DNA methylation.
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Affiliation(s)
- Cong Yuan
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Chen Zhang
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yongmei Qi
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Dong Li
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yan Hu
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Dejun Huang
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.
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17
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Moreira CG, Moreira MH, Silva VMOC, Santos HG, Bila DM, Fonseca FV. Treatment of Bisphenol A (BPA) in water using UV/H 2O 2 and reverse osmosis (RO) membranes: assessment of estrogenic activity and membrane adsorption. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2019; 80:2169-2178. [PMID: 32198334 DOI: 10.2166/wst.2020.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Removal of an endocrine disrupting compound, Bisphenol A (BPA), from water was investigated using two treatment processes, UV/H2O2 advanced oxidation (AOP) and reverse osmosis (membrane separation). Furthermore, changes in estrogenic activity using in vitro yeast estrogen screen assay as well as the adsorption of BPA by the membrane surface were evaluated. The best UV/H2O2 performance was obtained using the highest established values of all parameters, reaching 48% BPA removal. Within the investigated conditions of the AOP, when lower doses of UV were used, a higher removal efficiency was achieved at a higher initial concentration of BPA. However, the same behavior was not observed for the highest UV dose, in which the removal efficiency was not dependent on BPA initial concentration. In both cases, removal efficiency increased as H2O2 concentration increased. The formation of estrogenic by-products was observed in UV/H2O2. The membrane rejection efficiency varied from 60% to 84% and all experiments showed adsorption of BPA by the membrane surface. The RO membrane showed a greater BPA removal efficiency for samples containing 10 μg·L-1 than UV/H2O2 at the evaluated treatment conditions.
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Affiliation(s)
- Carolina G Moreira
- School of Chemistry, Federal University of Rio de Janeiro. Av. Athos da Silveira Ramos, 149 Rio de Janeiro, 21941-909, Brazil E-mail:
| | - Mariana H Moreira
- School of Chemistry, Federal University of Rio de Janeiro. Av. Athos da Silveira Ramos, 149 Rio de Janeiro, 21941-909, Brazil E-mail:
| | - Vanessa M O C Silva
- School of Chemistry, Federal University of Rio de Janeiro. Av. Athos da Silveira Ramos, 149 Rio de Janeiro, 21941-909, Brazil E-mail:
| | - Henrique G Santos
- School of Chemistry, Federal University of Rio de Janeiro. Av. Athos da Silveira Ramos, 149 Rio de Janeiro, 21941-909, Brazil E-mail:
| | - Daniele M Bila
- Engineering college, State University of Rio de Janeiro, São Francisco Xavier street, 524, 5029-F. Maracanã, Rio de Janeiro, 20550-900, Brazil
| | - Fabiana V Fonseca
- School of Chemistry, Federal University of Rio de Janeiro. Av. Athos da Silveira Ramos, 149 Rio de Janeiro, 21941-909, Brazil E-mail:
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18
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David V, Joachim S, Porcher JM, Beaudouin R. Modelling BPA effects on three-spined stickleback population dynamics in mesocosms to improve the understanding of population effects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 692:854-867. [PMID: 31539991 DOI: 10.1016/j.scitotenv.2019.07.274] [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: 04/19/2019] [Revised: 07/03/2019] [Accepted: 07/17/2019] [Indexed: 06/10/2023]
Abstract
Bisphenol A (BPA), a well-known endocrine-disrupting chemical, is ubiquitously present in the aquatic environment. Its impacts at the population level on three-spined sticklebacks (Gasterosteus aculeatus) have been studied in artificial streams with low-dose BPA concentrations. The causes explaining the observed effects remained unclear. Here, we used an individual-based model coupled to a Dynamic Energy Budget model to (i) assess the potential of modelling to predict impacts at the population level using individual level laboratory ecotoxicological endpoints and (ii) provide insight on the mechanisms of BPA toxicity in these mesocosms. To do that, both direct and indirect effects of BPA on three-spined sticklebacks were incorporated in the model. Indeed, direct BPA effects on fish have been identified based on literature data whereas indirect effects on sticklebacks have been taken into account using sampling data of their prey from the exposed artificial streams. Results of the modelling showed that direct BPA effects on fish (impacts on gonad formation, growth, male reproductive behavior, eggs and larvae survival) mainly explained the three-spined stickleback population structure in the mesocosms, but indirect effects were not negligible. Hence, this study showed the potential of modelling in risk assessment to predict the impacts on fish population viability from behavioral and physiological effects measured on organisms.
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Affiliation(s)
- Viviane David
- Unit of Models for Ecotoxicology and Toxicology (METO), INERIS, 60550 Verneuil en Halatte, France; UMR-I 02 SEBIO, INERIS, Parc ALATA, BP2, 60550 Verneuil-en-Halatte, France
| | - Sandrine Joachim
- UMR-I 02 SEBIO, INERIS, Parc ALATA, BP2, 60550 Verneuil-en-Halatte, France
| | - Jean-Marc Porcher
- UMR-I 02 SEBIO, INERIS, Parc ALATA, BP2, 60550 Verneuil-en-Halatte, France
| | - Rémy Beaudouin
- Unit of Models for Ecotoxicology and Toxicology (METO), INERIS, 60550 Verneuil en Halatte, France; UMR-I 02 SEBIO, INERIS, Parc ALATA, BP2, 60550 Verneuil-en-Halatte, France.
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19
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Forner-Piquer I, Fakriadis I, Mylonas CC, Piscitelli F, Di Marzo V, Maradonna F, Calduch-Giner J, Pérez-Sánchez J, Carnevali O. Effects of Dietary Bisphenol A on the Reproductive Function of Gilthead Sea Bream ( Sparus aurata) Testes. Int J Mol Sci 2019; 20:ijms20205003. [PMID: 31658598 PMCID: PMC6835794 DOI: 10.3390/ijms20205003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/03/2019] [Accepted: 10/05/2019] [Indexed: 12/14/2022] Open
Abstract
Bisphenol A (BPA), a known endocrine disrupting chemical (EDC), was administered by diet to gilthead sea bream (Sparus aurata) in order to study its effects on the endocannabinoid system (ECS) and gonadal steroidogenesis. 2-year-old male gilthead sea bream were fed with two different concentrations of BPA (LOW at 4 and HIGH at 4000 µg/kg body weight for 21 days during the reproductive season. Exposure to 4000 µg BPA/kg bw/day (BPA HIGH) reduced sperm motility and altered the straight-line velocity (VSL) and linearity (LIN). Effects on steroidogenesis were evident, with testosterone (T) being up-regulated by both treatments and 11-ketotestosterone (11-KT) down-regulated by BPA HIGH. Plasma levels of 17β-estradiol (E2) were not affected. The Gonadosomatic Index (GSI) increased in the BPA HIGH group. Interestingly, the levels of endocannabinoids and endocannabinoid-like compounds were significantly reduced after both treatments. Unpredictably, a few changes were noticed in the expression of genes coding for ECS enzymes, while the receptors were up-regulated depending on the BPA dose. Reproductive markers in testis (leptin receptor (lepr), estrogen receptors (era, erb), progesterone receptors (pr) and the gonadotropin releasing hormone receptor (gnrhr)) were up-regulated. BPA induced the up-regulation of the hepatic genes involved in oogenesis (vitellogenin (vtg) and zona pellucida 1 (zp1)).
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Affiliation(s)
- Isabel Forner-Piquer
- Dipartimento Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Ioannis Fakriadis
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Center for Marine Research, P.O. Box 2214, Heraklion, 71003 Crete, Greece.
| | - Constantinos C Mylonas
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Center for Marine Research, P.O. Box 2214, Heraklion, 71003 Crete, Greece.
| | - Fabiana Piscitelli
- Endocannabinoid Research Group, Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Via Campi Flegrei, 80078 Pozzuoli, Italy.
| | - Vincenzo Di Marzo
- Endocannabinoid Research Group, Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Via Campi Flegrei, 80078 Pozzuoli, Italy.
- Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health, Université Laval, Quebec City, QC G1V 0A6, Canada.
| | - Francesca Maradonna
- Dipartimento Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Josep Calduch-Giner
- Nutrigenomics and Fish Endocrinology Group, Institute of Aquaculture Torre de la Sal (IATS-CSIC), 12595 Ribera de Cabanes, Castellón, Spain.
| | - Jaume Pérez-Sánchez
- Nutrigenomics and Fish Endocrinology Group, Institute of Aquaculture Torre de la Sal (IATS-CSIC), 12595 Ribera de Cabanes, Castellón, Spain.
| | - Oliana Carnevali
- Dipartimento Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
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20
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Rahman MS, Pang MG. Understanding the molecular mechanisms of bisphenol A action in spermatozoa. Clin Exp Reprod Med 2019; 46:99-106. [PMID: 31484226 PMCID: PMC6736506 DOI: 10.5653/cerm.2019.00276] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 07/25/2019] [Indexed: 01/12/2023] Open
Abstract
Bisphenol A (BPA) is an endocrine-disrupting chemical that is capable of interfering with the normal function of the endocrine system in the body. Exposure to this chemical from BPA-containing materials and the environment is associated with deleterious health effects, including male reproductive abnormalities. A search of the literature demonstrated that BPA, as a toxicant, directly affects the cellular oxidative stress response machinery. Because of its hormone-like properties, it can also bind with specific receptors in target cells. Therefore, the tissue-specific effects of BPA mostly depend on its endocrine-disrupting capabilities and the expression of those particular receptors in target cells. Although studies have shown the possible mechanisms of BPA action in various cell types, a clear consensus has yet to be established. In this review, we summarize the mechanisms of BPA action in spermatozoa by compiling existing information in the literature.
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Affiliation(s)
- Md Saidur Rahman
- Department of Animal Science and Technology and BET Research Institute, Chung-Ang University, Anseong, Korea
| | - Myung-Geol Pang
- Department of Animal Science and Technology and BET Research Institute, Chung-Ang University, Anseong, Korea
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21
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Alavi SMH, Cosson J, Bondarenko O, Linhart O. Sperm motility in fishes: (III) diversity of regulatory signals from membrane to the axoneme. Theriogenology 2019; 136:143-165. [PMID: 31265944 DOI: 10.1016/j.theriogenology.2019.06.038] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/31/2019] [Accepted: 06/24/2019] [Indexed: 02/06/2023]
Abstract
Fish spermatozoa acquire potential for motility in the sperm duct where they are immotile. Osmolality of the seminal plasma is a key factor to maintain spermatozoa in the quiescent state in either freshwater or marine fishes. However, potassium (K+) ions prevent spermatozoa motility in salmonid and sturgeon fishes, while CO2 inhibits spermatozoa motility in flatfishes. Once, spermatozoa are released at spawning, their motility is initiated in hypo-osmotic and hyper-osmotic environments in freshwater and marine fishes, respectively. Some substances produced by the testes (a progestin), or released from oocytes (peptides) induce spermatozoa hypermotility in some marine fishes including the Atlantic croaker and Pacific herrings, respectively. Duration of spermatozoa motility is short, lasting for a few seconds to few minutes in most fishes due to rapid depletion of energy required for the beating of the motility apparatus called axoneme. In the osmotic-activated spermatozoa, K+ and water effluxes occur in freshwater and marine fishes, respectively, which trigger spermatozoa motility signaling. In general, initiation of axonemal beating is associated with an increase in intracellular calcium (Ca2+) ions in spermatozoa of both freshwater and marine fishes and a post- or pre-increase in intracellular pH, while cyclic adenosine monophosphate (cAMP) remains unchanged. However, axonemal beating is cAMP-dependent in demembranated spermatozoa of salmonid and sturgeon fishes. Calcium from extracellular environment or intracellular stores supply required Ca2+ concentration for axonemal beating. Several axonemal proteins have been so far identified in fishes that are activated by Ca2+ and cAMP, directly or mediated by protein kinase C and protein kinase A, respectively. The present study reviews differences and similarities in complex regulatory signals controlling spermatozoa motility initiation in fishes, and notes physiological mechanisms that await elucidation.
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Affiliation(s)
| | - Jacky Cosson
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Vodňany, 389 25, Czech Republic.
| | - Olga Bondarenko
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Vodňany, 389 25, Czech Republic
| | - Otomar Linhart
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Vodňany, 389 25, Czech Republic.
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22
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Tao S, Wang L, Zhu Z, Liu Y, Wu L, Yuan C, Zhang G, Wang Z. Adverse effects of bisphenol A on Sertoli cell blood-testis barrier in rare minnow Gobiocypris rarus. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 171:475-483. [PMID: 30639874 DOI: 10.1016/j.ecoenv.2019.01.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 12/28/2018] [Accepted: 01/03/2019] [Indexed: 06/09/2023]
Abstract
Bisphenol A (BPA), an environmental contaminant, has been shown to disturb the dynamics of Sertoli cell blood-testis barrier (BTB) in mammal testis. However, the effects of BPA on Sertoli cell barrier (SC barrier) were little known in fish to date. To evaluate the potential mechanism of reproductive toxicity of BPA, we studied the damage of SC barrier using in vivo models. In this study, male adult rare minnow Gobiocypris rarus were exposed to 15 μg/L BPA for 7-35 days. Gonadal histology and the integrity of SC barrier were analyzed. Meanwhile, the expressions of SC barrier -associated proteins, tumor necrosis factor (TNFα) content, and the mRNA expressions of genes in the mitogen activated protein kinase (MAPK) pathway were detected. Histological analysis demonstrated 15 μg/L BPA promoted the infiltration of inflammatory cells in fish testes after 7-days exposure. The biotin tracer assay showed that 7-days BPA exposure increased permeability for spermatid cysts. In addition, the BPA treatment caused increased TNFα in testis, which was reportedly related to SC barrier impairment. The expressions of Occludin and β-Catenin protein were significantly decreased in the testes after 7- and 21-days exposure. BPA also altered the mRNA expressions of occludin, β-catenin, p38 MAPK and JNK. Therefore, the detrimental effects of BPA on reproduction of male fish may attribute to the disturbed expressions of SC junction proteins.
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Affiliation(s)
- Shiyu Tao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lihong Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zeliang Zhu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yan Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lang Wu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Cong Yuan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Guo Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zaizhao Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
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23
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In-site synthesis molecular imprinting Nb2O5 –based photoelectrochemical sensor for bisphenol A detection. Biosens Bioelectron 2018; 121:104-110. [DOI: 10.1016/j.bios.2018.08.070] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/28/2018] [Accepted: 08/29/2018] [Indexed: 01/16/2023]
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24
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Carnevali O, Santangeli S, Forner-Piquer I, Basili D, Maradonna F. Endocrine-disrupting chemicals in aquatic environment: what are the risks for fish gametes? FISH PHYSIOLOGY AND BIOCHEMISTRY 2018; 44:1561-1576. [PMID: 29948447 DOI: 10.1007/s10695-018-0507-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 04/23/2018] [Indexed: 06/08/2023]
Abstract
Over the past 25 years, extensive research in vertebrate species has identified several genomic pathways altered by exposures to anthropogenic chemicals with hormone-like activity mediated by their interaction with nuclear receptors. In addition, many pollutants have been shown to interfere with non-genomic (non-classical) pathways, but this mechanism of endocrine disruption is still poorly understood. Recently, the number of publications describing the effects of Endocrine disrupting chemicals (EDCs) on fish reproduction, focusing on the deregulation of the hypothalamus-pituitary-gonadal axis as well as on gamete quality, significantly increased. Depending on their ability to mimic endogenous hormones, the may differently affect male or female reproductive physiology. Inhibition of gametogenesis, development of intersex gonads, alteration of the gonadosomatic index, and decreased fertility rate have been largely documented. In males, alterations of sperm density, motility, and fertility have been observed in several wild species. Similar detrimental effects were described in females, including negative outcomes on oocyte growth and maturation plus the occurrence of apoptotic/autophagic processes. These pathways may affect gamete viability considered as one of the major indicators of reproductive endocrine disruption. Pollutants act also at DNA level producing DNA mutations and changes in epigenetic pathways inducing specific mechanisms of toxicity and/or aberrant cellular responses that may affect subsequent generation(s) through the germline. In conclusion, this review summarizes the effects caused by EDC exposure on fish reproduction, focusing on gametogenesis, giving a general overview of the different aspects dealing with this issue, from morphological alteration, deregulation of steroidogenesis, hormonal synthesis, and occurrence of epigenetic process.
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Affiliation(s)
- Oliana Carnevali
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy.
- INBB Consorzio Interuniversitario di Biostrutture e Biosistemi, 00136, Rome, Italy.
| | - Stefania Santangeli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
- INBB Consorzio Interuniversitario di Biostrutture e Biosistemi, 00136, Rome, Italy
| | - Isabel Forner-Piquer
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - Danilo Basili
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - Francesca Maradonna
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy.
- INBB Consorzio Interuniversitario di Biostrutture e Biosistemi, 00136, Rome, Italy.
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25
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Thoene M, Rytel L, Nowicka N, Wojtkiewicz J. The state of bisphenol research in the lesser developed countries of the EU: a mini-review. Toxicol Res (Camb) 2018; 7:371-380. [PMID: 30090587 PMCID: PMC6062254 DOI: 10.1039/c8tx00064f] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 04/17/2018] [Indexed: 01/01/2023] Open
Abstract
Bisphenol compounds are a class of chemical epoxy resins that are found throughout the world in food packaging, thermal paper products, dental materials, and more. These compounds were deemed to be safe until recently, when some studies noticed adverse effects at very low doses, due to the fact that bisphenol acts as an endocrine disruptor. Over the last ten years, studies have been performed to detect bisphenols (especially BPA) in serum and blood samples throughout the world. Essentially, the majority of the earth's population seems to have significantly measurable levels of bisphenol in their blood plasma or urine. However, the majority of the population is unaware that a potential danger may exist. The purpose of this mini-review is to report upon the state of bisphenol research in the lesser developed member-states of the European Union and to increase awareness of the exposure level and possible adverse health effects of this endocrine disruptor. The results show that only three of the most newly admitted members of the European Union have published research concerning the health effects and/or environmental exposure of EU citizens to bisphenol compounds. Those countries were Slovenia, Poland and the Czech Republic. The rest of the surveyed member-states had little or no published research in relation to bisphenol compounds. Furthermore, even the three nations referred to above still lagged far behind the more advanced EU member-states. The lack of research could translate into a lack of awareness amongst the citizenry of nearly half of the EU, and may be unnecessarily putting those EU citizens at an increased risk of exposure.
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Affiliation(s)
- Michael Thoene
- Department of Medical Biology , Faculty of Health Sciences , University of Warmia and Mazury in Olsztyn , Żołnierska 14C str. , 10-561 Olsztyn , Poland . ; Tel: +(89) 524 61 16
| | - Liliana Rytel
- Department of Internal Medicine and Clinic , Faculty of Veterinary Medicine , University of Warmia and Mazury , OczapowskiegoStr 15 , 10-718 , Olsztyn , Poland .
| | - Natalia Nowicka
- Department of Pathophysiology , Faculty of Medical Sciences , University of Warmia and Mazury , Olsztyn , Poland . ;
| | - Joanna Wojtkiewicz
- Department of Pathophysiology , Faculty of Medical Sciences , University of Warmia and Mazury , Olsztyn , Poland . ;
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Wang Y, Na G, Zong H, Ma X, Yang X, Mu J, Wang L, Lin Z, Zhang Z, Wang J, Zhao J. Applying adverse outcome pathways and species sensitivity-weighted distribution to predicted-no-effect concentration derivation and quantitative ecological risk assessment for bisphenol A and 4-nonylphenol in aquatic environments: A case study on Tianjin City, China. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2018; 37:551-562. [PMID: 28984376 DOI: 10.1002/etc.3994] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/15/2017] [Accepted: 10/02/2017] [Indexed: 06/07/2023]
Abstract
Adverse outcome pathways (AOPs) are a novel concept that effectively considers the toxic modes of action and guides the ecological risk assessment of chemicals. To better use toxicity data including biochemical or molecular responses and mechanistic data, we further developed a species sensitivity-weighted distribution (SSWD) method for bisphenol A and 4-nonylphenol. Their aquatic predicted-no-effect concentrations (PNECs) were derived using the log-normal statistical extrapolation method. We calculated aquatic PNECs of bisphenol A and 4-nonylphenol with values of 4.01 and 0.721 µg/L, respectively. The ecological risk of each chemical in different aquatic environments near Tianjin, China, a coastal municipality along the Bohai Sea, was characterized by hazard quotient and probabilistic risk quotient assessment techniques. Hazard quotients of 7.02 and 5.99 at 2 municipal sewage sites using all of the endpoints were observed for 4-nonylphenol, which indicated high ecological risks posed by 4-nonylphenol to aquatic organisms, especially endocrine-disrupting effects. Moreover, a high ecological risk of 4-nonylphenol was indicated based on the probabilistic risk quotient method. The present results show that combining the SSWD method and the AOP concept could better protect aquatic organisms from adverse effects such as endocrine disruption and could decrease uncertainty in ecological risk assessment. Environ Toxicol Chem 2018;37:551-562. © 2017 SETAC.
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Affiliation(s)
- Ying Wang
- Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, National Marine Environmental Monitoring Center, Dalian, Liaoning, China
| | - Guangshui Na
- Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, National Marine Environmental Monitoring Center, Dalian, Liaoning, China
| | - Humin Zong
- Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, National Marine Environmental Monitoring Center, Dalian, Liaoning, China
| | - Xindong Ma
- Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, National Marine Environmental Monitoring Center, Dalian, Liaoning, China
| | - Xianhai Yang
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing, Jiangsu, China
| | - Jingli Mu
- Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, National Marine Environmental Monitoring Center, Dalian, Liaoning, China
| | - Lijun Wang
- Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, National Marine Environmental Monitoring Center, Dalian, Liaoning, China
| | - Zhongsheng Lin
- Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, National Marine Environmental Monitoring Center, Dalian, Liaoning, China
| | - Zhifeng Zhang
- Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, National Marine Environmental Monitoring Center, Dalian, Liaoning, China
| | - Juying Wang
- Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, National Marine Environmental Monitoring Center, Dalian, Liaoning, China
| | - Jinsong Zhao
- College of Resources and Environment, Huazhong Agricultural University, Hongshan District, Wuhan, Hubei, China
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27
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Zare A, Henry D, Chua G, Gordon P, Habibi HR. Differential Hepatic Gene Expression Profile of Male Fathead Minnows Exposed to Daily Varying Dose of Environmental Contaminants Individually and in Mixture. Front Endocrinol (Lausanne) 2018; 9:749. [PMID: 30619083 PMCID: PMC6295643 DOI: 10.3389/fendo.2018.00749] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 11/26/2018] [Indexed: 01/09/2023] Open
Abstract
Environmental contaminants are known to impair reproduction, metabolism and development in wild life and humans. To investigate the mechanisms underlying adverse effects of contaminants, fathead minnows were exposed to a number of endocrine disruptive chemicals (EDCs) including Nonylphenol (NP), bisphenol-A (BPA), Di(2-ethylhexyl) phthalate (DEHP), and a mixture of the three chemicals for 21 days, followed by determination of the liver transcriptome by expression microarrays. Pathway analysis revealed a distinct mode of action for the individual chemicals and their mixture. The results showed expression changes in over 980 genes in response to exposure to these EDC contaminants individually and in mixture. Ingenuity Pathway core and toxicity analysis were used to identify the biological processes, pathways and the top regulators affected by these compounds. A number of canonical pathways were significantly altered, including cell cycle & proliferation, lipid metabolism, inflammatory, innate immune response, stress response, and drug metabolism. We identified 18 genes that were expressed in all individual and mixed treatments. Relevant candidate genes identified from expression microarray data were verified using quantitative PCR. We were also able to identify specific genes affected by NP, BPA, and DEHP individually, but were also affected by exposure to the mixture of the contaminants. Overall the results of this study provide novel information on the adverse health impact of contaminants tested based on pathway analysis of transcriptome data. Furthermore, the results identify a number of new biomarkers that can potentially be used for screening environmental contaminants.
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Affiliation(s)
- Ava Zare
- Department of Biological Sciences, University of Calgary, Calgary, AB, Canada
| | - Darren Henry
- Department of Biological Sciences, University of Calgary, Calgary, AB, Canada
| | - Gordon Chua
- Department of Biological Sciences, University of Calgary, Calgary, AB, Canada
| | - Paul Gordon
- Cumming School of Medicine, Health Sciences Centre, University of Calgary, Calgary, AB, Canada
| | - Hamid R. Habibi
- Department of Biological Sciences, University of Calgary, Calgary, AB, Canada
- Cumming School of Medicine, Health Sciences Centre, University of Calgary, Calgary, AB, Canada
- *Correspondence: Hamid R. Habibi
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28
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Yuan C, Zhang Y, Liu Y, Wang S, Wang Z. DNA demethylation mediated by down-regulated TETs in the testes of rare minnow Gobiocypris rarus under bisphenol A exposure. CHEMOSPHERE 2017; 171:355-361. [PMID: 28030787 DOI: 10.1016/j.chemosphere.2016.12.098] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 12/10/2016] [Accepted: 12/20/2016] [Indexed: 06/06/2023]
Abstract
Inevitable BPA exposure resulted in disturbance of DNA methylation status and our published study suspected that BPA has the potentiality to disturb DNA demethylation and GSH production in Gobiocypris rarus testes. To confirm this conjecture, several experiments were carried out in the present study. Adult male G. rarus was exposed to 1, 15 and 225 μg L-1 (nominal concentration) BPA for two weeks. The levels of 5-methylcytosine (5mC), 5-hydroxymethylcytosine (5hmC), glutathione (GSH), and enzyme levels for DNA methylation and GSH synthesis in the testes were detected. Meanwhile, the contents of substrates for GSH synthesis were measured. Furthermore, the transcriptional changes of the studied genes were examined. Results indicated that 1-225 μg L-1 BPA caused decrease of testicular ten-eleven translocation proteins (TETs) with more obvious effects at low concentrations. Moreover, all concentrations of BPA resulted in decrease of 5hmC levels while only 225 μg L-1 BPA resulted in significant increase of 5mC. In addition, all treatments resulted in significant decrease of GSH and the replenishment of GSH might be mainly accomplished by circular synthesis. These results indicated that BPA exposure inhibited TETs-mediated DNA demethylation and the declined DNA demethylation mediated by TETs may result in DNA hypermethylation at 225 μg L-1 BPA. In addition, the changes of DNA methylation status were irrelevant with GSH levels.
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Affiliation(s)
- Cong Yuan
- College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi 712100 China
| | - Yingying Zhang
- College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi 712100 China
| | - Yan Liu
- College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi 712100 China
| | - Song Wang
- College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi 712100 China
| | - Zaizhao Wang
- College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi 712100 China.
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29
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Manshack LK, Conard CM, Bryan SJ, Deem SL, Holliday DK, Bivens NJ, Givan SA, Rosenfeld CS. Transcriptomic alterations in the brain of painted turtles ( Chrysemys picta) developmentally exposed to bisphenol A or ethinyl estradiol. Physiol Genomics 2017; 49:201-215. [PMID: 28159858 DOI: 10.1152/physiolgenomics.00103.2016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 02/01/2017] [Accepted: 02/01/2017] [Indexed: 12/25/2022] Open
Abstract
Developmental exposure of turtles and other reptiles to endocrine-disrupting chemicals (EDCs), including bisphenol A (BPA) and ethinyl estradiol (EE), can stimulate partial to full gonadal sex-reversal in males. We have also recently shown that in ovo exposure to either EDC can induce similar sex-dependent behavioral changes typified by improved spatial learning and memory or possibly feminized brain responses. Observed behavioral changes are presumed to be due to BPA- and EE-induced brain transcriptomic alterations during development. To test this hypothesis, we treated painted turtles (Chrysemys picta) at developmental stage 17, incubated at 26°C (male-inducing temperature), with 1) BPA (1 ng/µl), 2) EE (4 ng/µl), or 3) vehicle ethanol (control group). Ten months after hatching and completion of the behavioral tests, juvenile turtles were euthanized, brains were collected and frozen in liquid nitrogen, and RNA was isolated for RNA-Seq analysis. Turtles exposed to BPA clustered separately from EE-exposed and control individuals. More transcripts and gene pathways were altered in BPA vs. EE individuals. The one transcript upregulated in both BPA- and EE-exposed individuals was the mitochondrial-associated gene, ND5, which is involved in oxidative phosphorylation. Early exposure of turtles to BPA increases transcripts linked with ribosomal and mitochondrial functions, especially bioenergetics, which has been previously linked with improved cognitive performance. In summary, even though both BPA and EE resulted in similar behavioral alterations, they diverge in the pattern of neural transcript alterations with early BPA significantly upregulating several genes involved in oxidative phosphorylation, mitochondrial activity, and ribosomal function, which could enhance cognitive performance.
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Affiliation(s)
- Lindsey K Manshack
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri.,Biomedical Sciences, University of Missouri, Columbia, Missouri
| | - Caroline M Conard
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri.,Biomedical Sciences, University of Missouri, Columbia, Missouri
| | - Sara J Bryan
- Veterinary Medicine and Surgery, University of Missouri, Columbia, Missouri
| | - Sharon L Deem
- Veterinary Medicine and Surgery, University of Missouri, Columbia, Missouri.,Saint Louis Zoo Institute for Conservation Medicine, St. Louis, Missouri
| | - Dawn K Holliday
- Pathology and Anatomical Sciences, School of Medicine, University of Missouri, Columbia, Missouri.,Department of Biology and Environmental Sciences, Westminster College, Fulton, Missouri
| | - Nathan J Bivens
- DNA Core Facility, University of Missouri, Columbia, Missouri
| | - Scott A Givan
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri.,Informatics Research Core Facility, University of Missouri, Columbia, Missouri.,Molecular Microbiology and Immunology, University of Missouri, Columbia, Missouri
| | - Cheryl S Rosenfeld
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri; .,Biomedical Sciences, University of Missouri, Columbia, Missouri.,Genetics Area Program, University of Missouri, Columbia, Missouri; and.,Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, Missouri
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30
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Chen J, Saili KS, Liu Y, Li L, Zhao Y, Jia Y, Bai C, Tanguay RL, Dong Q, Huang C. Developmental bisphenol A exposure impairs sperm function and reproduction in zebrafish. CHEMOSPHERE 2017; 169:262-270. [PMID: 27880925 DOI: 10.1016/j.chemosphere.2016.11.089] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 11/15/2016] [Accepted: 11/15/2016] [Indexed: 05/07/2023]
Abstract
The developmental and reproductive toxicity of bisphenol A (BPA) has been demonstrated in a variety of model systems. Zebrafish (Danio rerio) were waterborne-exposed to BPA during three different developmental stages: embryonic period:6 h post fertilization (hpf) to 5 months post fertilization (mpf); larval period: 6 days post fertilization (dpf) to 5 mpf; and sexually mature period: 3 mpf to 5 mpf. Evaluations included F0 adult growth, reproduction parameters, and F1 offspring development. BPA exposure did not affect zebrafish growth in any of exposure groups. Testis weight was decreased only following the 6 hpf to 5 mpf 0.001 μM BPA exposure. The lowest effect level indicated by a reduction in sperm volume, density, motility, and velocity across a range of exposure durations was 0.001 μM, with all but sperm density significant for the longest exposure duration, which was also the only significant endpoint for the lowest exposure concentration in the 3-5 mpf exposure group. Nonmonotonic concentration-response curves were noted for all F0 reproductive endpoints for at least one of the two longest exposure durations. For the F1 offspring of fish exposed from 6 hpf to 5 mpf, malformations and mortality were increased following 0.001 μM BPA exposure, while egg production and fertilization were reduced in higher concentration treatment groups. Overall, BPA exposure during three different developmental periods impaired zebrafish reproductive development, with most significance changes found in the lowest concentration treatment groups. Genetic impacts on gamete development may underlie the secondary effects of reduced fertilization rate, embryonic mortality, and malformations.
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Affiliation(s)
- Jiangfei Chen
- Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Katerine S Saili
- Department of Environmental and Molecular Toxicology, The Sinnhuber Aquatic Research Laboratory, and the Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97333, USA
| | - Yueqin Liu
- Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Lelin Li
- Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Yuxin Zhao
- Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Yinhang Jia
- Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Chenglian Bai
- Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Robert L Tanguay
- Department of Environmental and Molecular Toxicology, The Sinnhuber Aquatic Research Laboratory, and the Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97333, USA
| | - Qiaoxiang Dong
- Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Changjiang Huang
- Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China.
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Saeed A, Hashmi I, Zare A, Mehrabani-Zeinabad M, Achari G, Habibi HR. Efficacy of UV-C photolysis of bisphenol A on transcriptome alterations of genes in zebrafish embryos. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2016; 51:877-883. [PMID: 27314163 DOI: 10.1080/10934529.2016.1191296] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The purpose of this study was to investigate the efficacy of UV-C direct photolysis of bisphenol A (BPA) as a remediation method of BPA contamination. We used zebrafish embryos as a model organism to test the toxicity and residual biological activity by measuring cytochrome P4501A1 (CYP1A), aromatase B (Aro B) and heat shock proteins (HSP-70) transcript levels. The mRNA levels of CYP1A gene increased about two fold while exposure of zebrafish embryos at 72 hpf resulted in significant induction (P = 0.048) of Aro B at 100 µg/L of BPA. Exposure of zebrafish embryos at 72 hpf to increasing concentrations of BPA resulted in significant induction (P = 0.0031) of HSP-70 transcript level. UV treatment of BPA resulted in a significant reduction in toxicity by reducing mortality of zebrafish embryos. The results suggest that UV-C direct photolysis may be an effective method for remediation of BPA contamination. Further studies will be necessary for better understanding of the identity and relative activity of the UV degradation by-products.
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Affiliation(s)
- Asma Saeed
- a Institute of Environmental Science & Engineering (IESE), School of Civil & Environmental Engineering (SCEE), National University of Sciences & Technology (NUST) , Islamabad , Pakistan
| | - Imran Hashmi
- a Institute of Environmental Science & Engineering (IESE), School of Civil & Environmental Engineering (SCEE), National University of Sciences & Technology (NUST) , Islamabad , Pakistan
| | - Ava Zare
- b Department of Biological Science , University of Calgary , Calgary , Alberta , Canada
| | | | - Gopal Achari
- c Department of Civil Engineering , University of Calgary , Calgary , Alberta , Canada
| | - Hamid R Habibi
- b Department of Biological Science , University of Calgary , Calgary , Alberta , Canada
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Chen J, Xiao Y, Gai Z, Li R, Zhu Z, Bai C, Tanguay RL, Xu X, Huang C, Dong Q. Reproductive toxicity of low level bisphenol A exposures in a two-generation zebrafish assay: Evidence of male-specific effects. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 169:204-14. [PMID: 26562050 PMCID: PMC6689195 DOI: 10.1016/j.aquatox.2015.10.020] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/26/2015] [Accepted: 10/28/2015] [Indexed: 05/03/2023]
Abstract
Bisphenol A (BPA), a high-volume chemical used to make polycarbonate plastic and epoxy resins, is a ubiquitous contaminant in environment and human body. To investigate the reproductive effects of long-term exposure to low concentrations of BPA, a two-generation study was conducted using the aquatic model species of zebrafish. Our findings revealed that exposure to 1nM (0.228μg/L) BPA for continuous two generations resulted in female-biased sex ratio in both F1 and F2 adult population, decreased sperm density, and decreased sperm quality as measured by motility, velocity, ATP content and lipid peroxidation in F1 and F2 males. Females were less sensitive to BPA exposures than males as no adverse effects were found in female gonads or gametes. Delayed hatching at 48hpf and increased malformation and mortality were found in the offspring from BPA exposed F2, but not F1 parents. Most importantly, the adverse effect on larval development and survival from BPA exposed F2 parents was paternal-specific, resulting mainly from BPA exposed males. Subsequent transcription analysis of F2 male gonads revealed dysregulated mitochondrial biogenesis and significant activation of non-canonical Wnt/planar cell polarity and Wnt/Calcium signaling pathways. Gene expression analysis of larvae from BPA exposed F2 parents showed significant reduced expression of DNA methyltransferases such as dnmt1, dnmt3, and dnmt5. In conclusion, low level BPA exposures for continuous two generations not only affects sex ratio and sperm quantity/quality in F1 and F2 adults, reproductive success in offspring from F2 parents, but also perturbs various molecular pathways potentially contributing to these BPA induced male-specific reproductive defects.
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Affiliation(s)
- Jiangfei Chen
- Zhejiang Provincial Key Laboratory for Technology and Application of Model Organisms, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China; Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Yanyan Xiao
- Zhejiang Provincial Key Laboratory for Technology and Application of Model Organisms, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China; Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Zengxin Gai
- Zhejiang Provincial Key Laboratory for Technology and Application of Model Organisms, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China; Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Rong Li
- Zhejiang Provincial Key Laboratory for Technology and Application of Model Organisms, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China; Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Zixu Zhu
- Zhejiang Provincial Key Laboratory for Technology and Application of Model Organisms, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China; Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Chenglian Bai
- Zhejiang Provincial Key Laboratory for Technology and Application of Model Organisms, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China; Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China
| | - Robert L Tanguay
- Environmental and Molecular Toxicology, The Sinnhuber Aquatic Research Laboratory and the Environmental Health Sciences Center, Oregon State, University, Corvallis, OR 97333, USA
| | - Xiaojiang Xu
- Integrated Bioinformatics, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Changjiang Huang
- Zhejiang Provincial Key Laboratory for Technology and Application of Model Organisms, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China; Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China.
| | - Qiaoxiang Dong
- Zhejiang Provincial Key Laboratory for Technology and Application of Model Organisms, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China; Institute of Environmental Safety and Human Health, Wenzhou Medical University, Wenzhou 325035, China.
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Abstract
Research on bisphenol A (BPA) as an environmental contaminant has now major regulatory implications toward the ecosystem health, and hence it is incumbent on scientists to do their research to the highest standards possible, in order that the most appropriate decisions are made to mitigate the impacts to aquatic wildlife. However, the contribution given so far appears rather fragmented. The present overview aims to collect available information on the effects of BPA on aquatic vertebrates and invertebrates to provide a general scenario and to suggest future developments toward more comprehensive approaches useful for aquatic species protection.
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Affiliation(s)
- Laura Canesi
- Department of Earth, Environment and Life Sciences, University of Genoa, Genova, Italy
| | - Elena Fabbri
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Campus of Ravenna, Ravenna, Italy
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Rajakumar C, Guan H, Langlois D, Cernea M, Yang K. Bisphenol A disrupts gene expression in human placental trophoblast cells. Reprod Toxicol 2015; 53:39-44. [PMID: 25784278 DOI: 10.1016/j.reprotox.2015.03.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 03/03/2015] [Accepted: 03/06/2015] [Indexed: 01/26/2023]
Abstract
This study examined the effect of bisphenol A (BPA) on human placental gene expression using primary trophoblast cells as an in vitro model system. Trophoblast cells were isolated from human placentas at term, cultured and then exposed to environmentally relevant concentrations of BPA (0.1-2 μg/ml) for up to 24h, after which levels of 11β-HSD2 mRNA, protein and activity were determined by standard radiometric conversion assay, western blotting, and qRT-PCR, respectively. The mRNA levels of several other prominent placental hormones/factors were also assessed by qRT-PCR. BPA dramatically increased levels of 11β-HSD2 activity, protein and mRNA in a time- and concentration-dependent manner (> 4-fold). BPA also augmented aromatase, glucose transporter-1, CRH, and hCG mRNA levels while reducing the level of leptin mRNA. These findings demonstrate that BPA severely disrupts human placental gene expression in vitro, which suggests that exposure to BPA may contribute to altered placental function and consequent pregnancy complications.
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Affiliation(s)
- Chandrew Rajakumar
- Department of Obstetrics & Gynaecology, The University of Western Ontario, 800 Commissioners Rd. E., London, Ontario, Canada N6C 2V5
| | - Haiyan Guan
- Children's Health Research Institute & Lawson Health Research Institute, The University of Western Ontario, 800 Commissioners Rd. E., London, Ontario, Canada N6C 2V5; Department of Obstetrics & Gynaecology, The University of Western Ontario, 800 Commissioners Rd. E., London, Ontario, Canada N6C 2V5
| | - David Langlois
- Department of Obstetrics & Gynaecology, The University of Western Ontario, 800 Commissioners Rd. E., London, Ontario, Canada N6C 2V5
| | - Maria Cernea
- Children's Health Research Institute & Lawson Health Research Institute, The University of Western Ontario, 800 Commissioners Rd. E., London, Ontario, Canada N6C 2V5; Department of Obstetrics & Gynaecology, The University of Western Ontario, 800 Commissioners Rd. E., London, Ontario, Canada N6C 2V5
| | - Kaiping Yang
- Children's Health Research Institute & Lawson Health Research Institute, The University of Western Ontario, 800 Commissioners Rd. E., London, Ontario, Canada N6C 2V5; Department of Obstetrics & Gynaecology, The University of Western Ontario, 800 Commissioners Rd. E., London, Ontario, Canada N6C 2V5; Department of Physiology & Pharmacology, The University of Western Ontario, 800 Commissioners Rd. E., London, Ontario, Canada N6C 2V5.
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Weber DN, Hoffmann RG, Hoke ES, Tanguay RL. Bisphenol A exposure during early development induces sex-specific changes in adult zebrafish social interactions. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2015; 78:50-66. [PMID: 25424546 PMCID: PMC4246420 DOI: 10.1080/15287394.2015.958419] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Developmental bisphenol A (BPA) exposure is associated with adverse behavioral effects, although underlying modes of action remain unclear. Because BPA is a suspected xenoestrogen, the objective was to identify sex-based changes in adult zebrafish social behavior developmentally exposed to BPA (0.0, 0.1, or 1 μM) or one of two control compounds (0.1 μM 17β-estradiol [E2], and 0.1 μM GSK4716, a synthetic estrogen-related receptor γ ligand). A test chamber was divided lengthwise so each arena held one fish unable to detect the presence of the other fish. A mirror was inserted at one end of each arena; baseline activity levels were determined without mirror. Arenas were divided into three computer-generated zones to represent different distances from mirror image. Circadian rhythm patterns were evaluated at 1-3 (= AM) and 5-8 (= PM) h postprandial. Adult zebrafish were placed into arenas and monitored by digital camera for 5 min. Total distance traveled, percent of time spent at mirror image, and number of attacks on mirror image were quantified. E2, GSK4716, and all BPA treatments dampened male activity and altered male circadian activity patterns; there was no marked effect on female activity. BPA induced nonmonotonic effects (response curve changes direction within range of concentrations examined) on male percent of time at mirror only in AM. All treatments produced increased percent of time at the mirror during PM. Male attacks on the mirror were reduced by BPA exposure only during AM. There were sex-specific effects of developmental BPA on social interactions, and time of day of observation affected results.
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Affiliation(s)
- Daniel N. Weber
- Children’s Environmental Health Sciences Core Center, University of Wisconsin-Milwaukee
- To Whom Correspondence Should Be Addressed: , 600 E. Greenfield Ave, Milwaukee, WI 53204, (414) 382-1726
| | | | | | - Robert L. Tanguay
- College of Agricultural Sciences, Department of Environmental & Molecular Toxicology, Oregon State University
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Qi S, Fu W, Wang C, Liu C, Quan C, Kourouma A, Yan M, Yu T, Duan P, Yang K. BPA-induced apoptosis of rat Sertoli cells through Fas/FasL and JNKs/p38 MAPK pathways. Reprod Toxicol 2014; 50:108-16. [PMID: 25461909 DOI: 10.1016/j.reprotox.2014.10.013] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Revised: 10/07/2014] [Accepted: 10/14/2014] [Indexed: 12/16/2022]
Abstract
Bisphenol-A was examined for its effects on cultured Sertoli cells established from 18 to 22-day-old rat testes. Results indicated that exposure to BPA (0, 30, 50 and 70 μM) decreased the cell viability in a concentration-dependent manner and induced cell apoptosis. Apoptosis-caused cell death was observed in cells exposed to 50 and 70 μM BPA. The mRNA expressions of Fas, FasL and caspase-3 were all elevated, and the protein expressions of FasL and cleaved caspase-3 were also increased. In addition, levels of phosphorylation of JNKs/p38 MAPK were also increased and then activated JNKs/p38 MAPK up regulated target gene expressions, such as c-jun and CHOP. Translocation of NF-κB into nuclei indicated the activation of NF-κB after treatment with BPA. Taken together, observed results suggest that BPA induces apoptosis of Sertoli cells by the activation of JNKs/p38 MPAK and translocation of NF-κB, and Fas/FasL system plays a critical role in the initiation of apoptosis.
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Affiliation(s)
- Suqin Qi
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, People's Republic of China.
| | - Wenjuan Fu
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, People's Republic of China
| | - Chengmin Wang
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, People's Republic of China
| | - Changjiang Liu
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, People's Republic of China
| | - Chao Quan
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, People's Republic of China
| | - Ansoumane Kourouma
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, People's Republic of China
| | - Maosheng Yan
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, People's Republic of China
| | - Tingting Yu
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, People's Republic of China
| | - Peng Duan
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, People's Republic of China
| | - Kedi Yang
- MOE Key Laboratory of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, People's Republic of China.
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37
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Involvement of CaM-CaMKII-ERK in bisphenol A-induced Sertoli cell apoptosis. Toxicology 2014; 324:27-34. [DOI: 10.1016/j.tox.2014.06.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 06/01/2014] [Accepted: 06/02/2014] [Indexed: 11/17/2022]
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Williams C, Bondesson M, Krementsov DN, Teuscher C. Gestational bisphenol A exposure and testis development. ACTA ACUST UNITED AC 2014; 2. [PMID: 26167515 DOI: 10.4161/endo.29088] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Virtually all humans are exposed to bisphenol A (BPA). Since BPA can act as a ligand for estrogen receptors, potential hazardous effects of BPA should be evaluated in the context of endogenous estrogenic hormones. Because estrogen is metabolized in the placenta, developing fetuses are normally exposed to very low endogenous estrogen levels. BPA, on the other hand, passes through the placenta and might have distinct adverse consequences during the sensitive stages of fetal development. Testicular gametogenesis and steroidogenesis begin early during fetal development. These processes are sensitive to estrogens and play a role in determining the number of germ stem cells, sperm count, and male hormone levels in adulthood. Although studies have shown a correlation between BPA exposure and perturbed reproduction, a clear consensus has yet to be established as to whether current human gestational BPA exposure results in direct adverse effects on male genital development and reproduction. However, studies in animals and in vitro have provided direct evidence for the ability of BPA exposure to influence male reproductive development. This review discusses the current knowledge of potential effects of BPA exposure on male reproductive health and whether gestational exposure adversely affects testis development.
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Affiliation(s)
- Cecilia Williams
- Center for Nuclear Receptors and Cell Signaling; Department of Biology and Biochemistry; University of Houston, Houston, TX USA
| | - Maria Bondesson
- Center for Nuclear Receptors and Cell Signaling; Department of Biology and Biochemistry; University of Houston, Houston, TX USA
| | - Dimitry N Krementsov
- Department of Medicine; Immunobiology Program; University of Vermont; Burlington, VT USA
| | - Cory Teuscher
- Department of Medicine; Immunobiology Program; University of Vermont; Burlington, VT USA ; Department of Pathology; University of Vermont; Burlington, VT USA
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Manfo FPT, Jubendradass R, Nantia EA, Moundipa PF, Mathur PP. Adverse effects of bisphenol A on male reproductive function. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2014; 228:57-82. [PMID: 24162092 DOI: 10.1007/978-3-319-01619-1_3] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
BPA is a ubiquitous environmental contaminant, resulting mainly from manufacturing,use or disposal of plastics of which it is a component, and the degradation of industrial plastic-related wastes. Growing evidence from research on laboratory animals, wildlife, and humans supports the view that BPA produces an endocrine disrupting effect and adversely affects male reproductive function. To better understand the adverse effects caused by exposure to BPA, we performed an up-to-date literature review on the topic, with particular emphasis on in utero exposure, and associated effects on spermatogenesis, steroidogenesis, and accessory organs.BPA studies on experimental animals show that effects are generally more detrimental during in utero exposure, a critical developmental stage for the embryo. BPA has been found to produce several defects in the embryo, such as feminization of male fetuses, atrophy of the testes and epididymides, increased prostate size, shortening of AGD, disruption of BTB, and alteration of adult sperm parameters (e.g.,sperm count, motility, and density). BPA also affects embryo thyroid development.During the postnatal and pubertal periods and adulthood, BPA affects the hypothalamic-pituitary-testicular axis by modulating hormone (e.g., LH and FSH,androgen and estrogen) synthesis, expression and function of respective receptors(ER, AR). These effects alter sperm parameters. BPA also induces oxidative stress in the testis and epididymis, by inhibiting antioxidant enzymes and stimulating lipid peroxidation. This suggests that employing antioxidants may be a promising strategy to relieve BPA-induced disturbances.Epidemiological studies have also provided data indicating that BPA alters male reproductive function in humans. These investigations revealed that men occupationally exposed to BPA had high blood/urinary BPA levels, and abnormal semen parameters. BPA-exposed men also showed reduced libido and erectile ejaculatory difficulties; moreover, the overall BPA effects on male reproduction appear to be more harmful if exposure occurs in utero. The regulation of BPA and BPA-related products should be reinforced, particularly where exposure during the fetal period can occur. The current TDI for BPA is proposed as 25 and 50 1-1g/kg bwt/day (European Food Safety Authority and Health Canada, respectively). Based on the evidence available, we believe that a TDI value of 5 1-1g/kg bwt/day is more appropriate (the endpoint is modulation of rat testicular function). Certain BPA derivatives are being considered as alternatives to BPA. However, certain of these related products display adverse effects that are similar to those of BPA. These effects should be carefully considered before using them as final alternatives to BPA in plastic production.
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Affiliation(s)
- Faustin Pascal Tsagué Manfo
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Buea, 63, Buea, Cameroon
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Zhang Y, Yuan C, Hu G, Li M, Zheng Y, Gao J, Yang Y, Zhou Y, Wang Z. Characterization of four nr5a genes and gene expression profiling for testicular steroidogenesis-related genes and their regulatory factors in response to bisphenol A in rare minnow Gobiocypris rarus. Gen Comp Endocrinol 2013; 194:31-44. [PMID: 24012916 DOI: 10.1016/j.ygcen.2013.08.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 07/26/2013] [Accepted: 08/22/2013] [Indexed: 10/26/2022]
Abstract
Bisphenol A (BPA) widely used in the manufacture of numerous products is ubiquitous in aquatic environment. To explore the mechanisms of BPA-mediated actions, male rare minnow Gobiocypris rarus were exposed to BPA at concentrations of 5, 15, and 50 μg/L for 14 and 35 days in the present study. Four subtypes of nr5a gene encoding important transcription factors for steroidogenesis were characterized, and tissue distribution analysis demonstrated distinct expression profiling of the four genes in G. rarus. BPA at environmentally relevant concentration (5 μg/L) caused increase of gonadosomatic index (GSI) of male fish. In response to BPA, no obvious changes on the testis development were observed. Modulation of vtg mRNA expression by BPA suggests estrogenic and/or anti-estrogenic effects of BPA were dependent on exposed duration (14 or 35 days). Gene expression profiling for testicular steroidogenesis-related genes, sexual steroid receptors, gonadotropin receptors, and transcription factors indicates differential regulation was dependent on exposure duration and dose of BPA. The correlation analysis at mRNA level demonstrates that the BPA-mediated actions on testicular steroidogenesis might involve sex steroid hormone receptor signaling, gonadotropin/gonadotropin receptor pathway, and transcription factors such as nuclear receptor subfamily 5, group A (Nr5a), fork head box protein L2 (Foxl2).
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Affiliation(s)
- Yingying Zhang
- College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi 712100, China
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A systematic review of Bisphenol A "low dose" studies in the context of human exposure: a case for establishing standards for reporting "low-dose" effects of chemicals. Food Chem Toxicol 2013; 62:935-48. [PMID: 23867546 DOI: 10.1016/j.fct.2013.07.007] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 06/17/2013] [Accepted: 07/01/2013] [Indexed: 12/30/2022]
Abstract
Human exposure to the chemical Bisphenol A is almost ubiquitous in surveyed industrialized societies. Structural features similar to estrogen confer the ability of Bisphenol A (BPA) to bind estrogen receptors, giving BPA membership in the group of environmental pollutants called endocrine disruptors. References by scientists, the media, political entities, and non-governmental organizations to many toxicity studies as "low dose" has led to the belief that exposure levels in these studies are similar to humans, implying that BPA is toxic to humans at current exposures. Through systematic, objective comparison of our current, and a previous compilation of the "low-dose" literature to multiple estimates of human external and internal exposure levels, we found that the "low-dose" moniker describes exposures covering 8-12 orders of magnitude, the majority (91-99% of exposures) being greater than the upper bound of human exposure in the general infant, child and adult U.S. Population. "low dose" is therefore a descriptor without specific meaning regarding human exposure. Where human exposure data are available, for BPA and other environmental chemicals, reference to toxicity study exposures by direct comparison to human exposure would be more informative, more objective, and less susceptible to misunderstanding.
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Jin P, Wang X, Chang F, Bai Y, Li Y, Zhou R, Chen L. Low dose bisphenol A impairs spermatogenesis by suppressing reproductive hormone production and promoting germ cell apoptosis in adult rats. J Biomed Res 2012; 27:135-44. [PMID: 23554804 PMCID: PMC3602871 DOI: 10.7555/jbr.27.20120076] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 10/06/2012] [Accepted: 11/13/2012] [Indexed: 11/25/2022] Open
Abstract
Bisphenol A (BPA), an estrogenic chemical, has been shown to reduce sperm count; however, the underlying mechanisms remain unknown. Herein, we show that oral administration of BPA (2 µg/kg) for consecutive 14 days in adult rats (BPA rats) significantly reduced the sperm count and the number of germ cells compared to controls. The serum levels of testosterone and follicle-stimulating hormone (FSH), as well as the level of GnRH mRNA in BPA rats were lower than those of control rats. Testosterone treatment could partially rescue the reduction of germ cells in BPA rats. Notably, the number of apoptotic germ cells was significantly increased in BPA rats, which was insensitive to testosterone. Furthermore, the levels of Fas, FasL and caspase-3 mRNA in the testicle of BPA rats were increased in comparison with controls. These results indicate that exposure to a low dose of BPA impairs spermatogenesis through decreasing reproductive hormones and activating the Fas/FasL signaling pathway.
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Affiliation(s)
- Pengpeng Jin
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China; ; Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu 210029, China; ; Department of Physiology, Wenzhou Medical College, Wenzhou, Zhejiang 325000, China
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