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Wang C, Lou Y, Wang T, Li R, Peng M, Gao D, Lei W. Embryonic exposure to water accommodated fraction of crude oil inhibits reproductive capability in adult female marine medaka (Oryzias melastigma). CHEMOSPHERE 2024; 362:142616. [PMID: 38906194 DOI: 10.1016/j.chemosphere.2024.142616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 06/23/2024]
Abstract
The water accommodated fraction (WAF) of spilled crude oil is a severe threat to the health of marine fish. This study was conducted to investigate the effects of short-term embryonic exposure to the WAF on the ovarian development and reproductive capability of F0 adult female marine medaka (Oryzias melastigma). Following embryonic exposure to the WAF with nominal total petroleum hydrocarbon concentrations of 0.5, 5, 50, and 500 μg/L for 7 days, the number of spawned eggs and gonadosomatic indices of F0 adult females were significantly reduced at 130 days postfertilization. In these F0 adult females, the proportion of mature oocytes was significantly lower, the level of 17β-estradiol was lower, and the level of testosterone was greater than those in control group. The mRNA levels of the follicle-stimulating hormone β subunit, luteinizing hormone β subunit, cytochrome P450 aromatase 19b, estrogen receptor α and β, and androgen receptor α and β genes were upregulated, while the mRNA level of the salmon-type gonadotropin-releasing hormone was downregulated in F0 adult females exposed to the WAF during the embryonic stage. Additionally, the methylation level of vitellogenin (vtg) in F0 adult females was significantly elevated, this might have, in turn, downregulated the mRNA level of vtg. The mortality rate of the unexposed F1 embryos was significantly increased and the hatching success was significantly reduced. These results collectively indicated the necessity of incorporating and evaluating the effects of short-term early-life exposure to crude oil in the assessment of risks to the reproductive health of marine fish.
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Affiliation(s)
- Chenshi Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China; State Environmental Protection Key Laboratory of Marine Ecosystem Restoration, National Marine Environmental Monitoring Center, Dalian, China
| | - Yingbin Lou
- Dalian Ecological Environment Monitoring Center, Liaoning Province, Dalian, China
| | - Ting Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Ruijun Li
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Mo Peng
- Jiangsu Environmental Monitoring Center, Nanjing, China
| | - Dongxu Gao
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China.
| | - Wei Lei
- State Environmental Protection Key Laboratory of Marine Ecosystem Restoration, National Marine Environmental Monitoring Center, Dalian, China.
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2
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Zhang Y, Guo J, Tang C, Xu K, Li Z, Wang C. Early life stage exposure to fenbuconazole causes multigenerational cardiac developmental defects in zebrafish and potential reasons. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 349:123938. [PMID: 38588970 DOI: 10.1016/j.envpol.2024.123938] [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: 02/06/2024] [Revised: 04/01/2024] [Accepted: 04/05/2024] [Indexed: 04/10/2024]
Abstract
With the increasing use of triazole fungicides in agriculture, triazole pesticides have aroused great concern about their toxicity and ecological risk. The current study investigated the impairments of embryonic exposure to fenbuconazole (FBZ) on cardiac transgenerational toxicity and related mechanisms. The fertilized eggs were exposed to 5, 50 and 500 ng/L FBZ for 72 h, and the larvae were then raised to adulthood in clean water. The adult fish were mated with unexposed fish to produce maternal and paternal F1 and F2 embryos, respectively. The results showed that increased arrhythmia were observed in F0, F1 and F2 larvae. Transcriptome sequencing indicated that the pathway of adrenergic signaling in cardiomyocytes was enriched in F0 and F2 larvae. In both F0 and F1 adult zebrafish hearts, ADRB2 protein expression decreased, and transcription of genes related to cardiac development and Ca2+ homeostasis was downregulated. These alterations might cause cardiac developmental defects. Significantly decreased protein levels of H3K9Ac and H3K14Ac might be linked with the downregulation in transcription of cardiac development genes. Protein‒protein interaction analysis exhibited that the pathway affecting the heart was well inherited in the paternal line. These results provide new ideas for the analysis and prevention of congenital heart disease.
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Affiliation(s)
- Ying Zhang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Jiaojiao Guo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Chen Tang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Ke Xu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Zihui Li
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Chonggang Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China.
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3
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Wu X, Wang S, Lin X, Liang H, Wu Y, Tan Y, Zeng H, Chen Q, Wang J, Huang F, Guo Z, Xing P, Nie J, Yao H, Fu Y, Yang Z, Zeng Z, Xu H, Zhong X, Jing C. Association between polycyclic aromatic hydrocarbons and infertility in U.S. women: National Health and Nutrition Examination Survey 2013-2016. Reprod Toxicol 2024; 125:108577. [PMID: 38499229 DOI: 10.1016/j.reprotox.2024.108577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 03/05/2024] [Accepted: 03/15/2024] [Indexed: 03/20/2024]
Abstract
Although there is a body of research indicating the potential impact of polycyclic aromatic hydrocarbons (PAHs) exposure on male infertility, the understanding of how PAH might affect female infertility is still limited. This study aimed to evaluate associations of PAHs, both individually and as a mixture, with female infertility using multiple logistic regression, Bayesian kernel machine regression (BKMR), and quantile g-computation (QGC) models based on data from the National Health and Nutrition Examination Survey (NHANES) 2013-2016. The study included 729 female participants. Multiple logistic regression results indicated that there was a significant association between the third tertile of 2-hydroxy fluorene (2-OHFLU) and female infertility, and the OR was 2.84 (95% CI: 1.24-6.53, P value = 0.015) compared with the first tertile after adjusting for the potential covariates. The BKMR model revealed a positive overall trend between mixed PAH exposure and female infertility, particularly when the mixture was at or above the 55th percentile, where 2-hydroxynaphthalene (2-OHNAP) and 1-hydroxypyrene (1-OHPYR) were the primary influences of the mixture. The univariate exposure-response function indicated positive associations between individual PAH exposure, specifically 2-OHNAP, 2-OHFLU, and 1-OHPYR, and female infertility. The QGC model also indicated a positive trend between exposure to a mixture of PAHs and female infertility, although it did not reach statistical significance (OR = 1.33, 95%CI: 0.86-2.07), with 1-OHPYR having the greatest positive effect on the outcome. This study suggested that exposure to PAHs may be associated with female infertility and further research is needed to consolidate and confirm these findings.
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Affiliation(s)
- Xiaomei Wu
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Suixiang Wang
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Xiaoxiao Lin
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Huanzhu Liang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Yingying Wu
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Yuxuan Tan
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Huixian Zeng
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Qian Chen
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Jie Wang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Feng Huang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Ziang Guo
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Puyi Xing
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Jiyu Nie
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Huojie Yao
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Yingyin Fu
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Zhiyu Yang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Zurui Zeng
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China
| | - Hongbiao Xu
- Department of Thyroid and Breast Surgery, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China.
| | - Xingming Zhong
- Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Guangzhou 510600, China.
| | - Chunxia Jing
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, Guangdong 510632, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, Guangdong 510632, China.
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4
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Bao Y, Chen Y, Zhou Y, Wang Q, Zuo Z, Yang C. Chronic diflubenzuron exposure causes reproductive toxic effects in female marine medaka (Oryzias melastigma). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 258:106511. [PMID: 37011547 DOI: 10.1016/j.aquatox.2023.106511] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/24/2023] [Accepted: 03/26/2023] [Indexed: 06/19/2023]
Abstract
Diflubenzuron, an insecticide commonly used in marine fish farming, has been detected in various marine environments. However, its potential impact on marine fish remains largely unknown. This study investigated the reproductive toxicity of chronic diflubenzuron exposure in female marine medaka (Oryzias melastigma). Marine medaka were exposed continuously to environmentally relevant concentrations of diflubenzuron (0.1, 1, and 10 μg/L) or a solvent control from the fertilized egg to adulthood. In exposed female marine medaka, the gonadosomatic index (GSI) and the number of laid eggs were significantly reduced. Moreover, diflubenzuron-exposed female marine medaka showed altered ovarian histopathology, with an increased relative proportion of immature oocytes and atretic follicles and a decreased relative proportion of mature oocytes. Maternal exposure to diflubenzuron also inhibited the development of the F1 generation, significantly reducing the hatching rate of F1 embryos and significantly increasing the malformation rate of F1 larvae. Furthermore, changes in hormone levels and expression of genes along the hypothalamus-pituitary-gonad-liver (HPGL) axis were observed, which may be the fundamental reason for all the reproductive toxic effects mentioned above. These results provide new insights into the impact of diflubenzuron on the female marine medaka reproductive system and underscore the importance of investigating the potential environmental risks of diflubenzuron in the marine environment.
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Affiliation(s)
- Yuanyuan Bao
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Yuxin Chen
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Yixi Zhou
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Qian Wang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen, Fujian 361102, China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China; Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen, Fujian 361102, China.
| | - Chunyan Yang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen, Fujian 361102, China.
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5
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Zhong L, Wu L, Ru H, Wei N, Yao F, Zhang H, Ni Z, Duan X, Li Y. Sex-specific thyroid disruption caused by phenanthrene in adult zebrafish (Danio rerio). Comp Biochem Physiol C Toxicol Pharmacol 2023; 263:109484. [PMID: 36210033 DOI: 10.1016/j.cbpc.2022.109484] [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: 08/12/2022] [Revised: 09/24/2022] [Accepted: 10/02/2022] [Indexed: 11/19/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are well-known contaminants with widespread distribution in environment and food. Phenanthrene is one of the most abundant PAHs in food and aquatic environment and generates reproductive and developmental toxicity in zebrafish. Nonetheless, whether phenanthrene caused sex-specific thyroid disruption in adult zebrafish is unclear. To determine this, adult zebrafish (male and female) were treated with phenanthrene (0, 0.85, 8.5, and 85 μg/L) for 60 days. After the treatment period, we assessed the concentrations of thyroid hormones (THs) and expression levels of genes in the hypothalamic-pituitary-thyroid (HPT) axis. The results showed that phenanthrene exposure can lead to thyroid disruption in both male and female zebrafish. Exposure to phenanthrene dramatically reduced the levels of L-thyroxine (T4) and L-triiodothyronine (T3) in both male and female zebrafish, with a similar trend in both. However, the genes expression profiles of hypothalamic-pituitary-thyroid (HPT) axis were sex-specific. In all, the present study demonstrated that phenanthrene exposure could result in sex-specific thyroid disruption in adult zebrafish.
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Affiliation(s)
- Liqiao Zhong
- Fishery Resources and Environmental Science Experimental Station of The Upper-Middle Reaches of Yangtze River (Ministry of Agriculture and Rural Affairs), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Luyin Wu
- Fishery Resources and Environmental Science Experimental Station of The Upper-Middle Reaches of Yangtze River (Ministry of Agriculture and Rural Affairs), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Huijun Ru
- Fishery Resources and Environmental Science Experimental Station of The Upper-Middle Reaches of Yangtze River (Ministry of Agriculture and Rural Affairs), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Nian Wei
- Fishery Resources and Environmental Science Experimental Station of The Upper-Middle Reaches of Yangtze River (Ministry of Agriculture and Rural Affairs), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Fan Yao
- Fishery Resources and Environmental Science Experimental Station of The Upper-Middle Reaches of Yangtze River (Ministry of Agriculture and Rural Affairs), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - He Zhang
- National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Zhaohui Ni
- Fishery Resources and Environmental Science Experimental Station of The Upper-Middle Reaches of Yangtze River (Ministry of Agriculture and Rural Affairs), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Xinbin Duan
- Fishery Resources and Environmental Science Experimental Station of The Upper-Middle Reaches of Yangtze River (Ministry of Agriculture and Rural Affairs), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China.
| | - Yunfeng Li
- Fishery Resources and Environmental Science Experimental Station of The Upper-Middle Reaches of Yangtze River (Ministry of Agriculture and Rural Affairs), Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China.
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6
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Hamza A, Ijaz MU, Anwar H. Rhamnetin alleviates polystyrene microplastics-induced testicular damage by restoring biochemical, steroidogenic, hormonal, apoptotic, inflammatory, spermatogenic and histological profile in male albino rats. Hum Exp Toxicol 2023; 42:9603271231173378. [PMID: 37122069 DOI: 10.1177/09603271231173378] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The current research was performed to evaluate the ameliorative effects of Rhamnetin (RHM) on polystyrene microplastics (PS-MPs)-instigated testicular dysfunction in male albino rats. 48 albino rats were distributed in four groups, i.e., control, PS-MPs treated, PS-MPs + RHM co-treated and RHM only supplemented group. PS-MPs exposure considerably reduced anti-oxidant enzymes i.e., catalase (CAT), glutathione peroxidase (GSR), superoxide dismutase (SOD) and glutathione reductase (GPx) activities. Whereas, reactive oxygen species (ROS) level along with malondialdehyde (MDA) was considerably escalated in PS-MPs treated rats as well as a potential decline was observed in sperm progressive motility. Additionally, a substantial upsurge was noticed in the count of dead sperms, deformity in the tail, mid-piece and head of sperms in PS-MPs treated rats. PS-MPs exposure also decreased steroidogenic enzymes, 17β-hydroxysteroid dehydrogenase (17β-HSD), steroidogenic acute regulatory protein (StAR) and 3β-hydroxysteroid dehydrogenase (3β-HSD) expressions. Moreover, the levels of inflammatory indices i.e., Interleukin-6 (IL-6), Nuclear factor kappa-B (NF-κB), Interleukin-1β (IL-1β), tumour necrosis factor-α (TNF-α) and cyclooxygenase-2 (COX-2) activity were also increased in PS-MPs administrated group. Besides it increased the expression of apoptotic markers (Bax and caspase-3) expression. Whereas, anti-apoptotic marker i.e., Bcl-2 expression was reduced. Moreover, luteinizing hormone (LH), follicle-stimulating hormone (FSH) as well as plasma testosterone levels were also decreased. PS-MPs exposure also led to a substantial histopathological damage in testicular tissues. However, RHM supplementation potentially reduced the damaging effects of PS-MPs in the reproductive tissues of male albino rats. Thus, the current study revealed, RHM possesses potential to prevent PS-MPs-induced testicular damage due to its anti-oxidant anti-apoptotic, anti-inflammatory as well as androgenic properties.
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Affiliation(s)
- Ali Hamza
- Department of Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Umar Ijaz
- Department of Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad, Pakistan
| | - Haseeb Anwar
- Department of Physiology, Government College University, Faisalabad, Pakistan
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Mundo R, Matsunaka T, Iwai H, Ochiai S, Nagao S. Environmental processes and fate of PAHs at a shallow and enclosed bay: West Nanao Bay, Noto Peninsula, Japan. MARINE POLLUTION BULLETIN 2022; 184:114105. [PMID: 36115196 DOI: 10.1016/j.marpolbul.2022.114105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 08/31/2022] [Accepted: 09/02/2022] [Indexed: 06/15/2023]
Abstract
From August 2019 to August 2020, particulate and dissolved polycyclic aromatic hydrocarbons concentrations (PAHs) were analyzed in the water body of West Nanao Bay, Japan, to determinate their levels, environmental pathways, and ecological risks at this remote but shallow and semi-enclosed bay. The 14 targeted PAHs were analyzed by high performance liquid chromatography-fluorescence detector. Even when water column stratifies, the summatory of 14 targeted dissolved PAHs did not follow significantly change with depth. Results agreed with our previous findings in the surface distribution at the bay and can be attributed to long retention time of the water mass of the semi-enclosed bay. Suspended solids start precipitating according to their size; with biggest particles rapidly settling in the proximities of river mouths. Partition coefficients (Kp) varied from 103 to 107, according to molecular weights. In general, highest Kp were found in the nepheloid layer. The risk quotients, RQ∑14 PAHs (NCs) (1.04-174.08), indicated that PAHs represented a very low to low environmental risks.
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Affiliation(s)
- Rodrigo Mundo
- Division of Material Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa, 920-1192, Japan.
| | - Tetsuya Matsunaka
- Division of Material Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa, 920-1192, Japan; Low Level Radioactivity Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Wake O, Nomi, Ishikawa, 923-1224, Japan.
| | - Hisanori Iwai
- Faculty of science and Engineering, Waseda University, Tokyo, Japan.
| | - Shinya Ochiai
- Division of Material Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa, 920-1192, Japan; Low Level Radioactivity Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Wake O, Nomi, Ishikawa, 923-1224, Japan.
| | - Seiya Nagao
- Division of Material Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa, 920-1192, Japan; Low Level Radioactivity Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Wake O, Nomi, Ishikawa, 923-1224, Japan.
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8
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Zhou Y, Zhu K, Wang Q, Chen M, He C, Yang C, Zuo Z. Aryl hydrocarbon receptor agonist diuron and its metabolites cause reproductive disorders in male marine medaka (Oryzias melastigma). CHEMOSPHERE 2022; 305:135388. [PMID: 35718029 DOI: 10.1016/j.chemosphere.2022.135388] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 06/05/2022] [Accepted: 06/14/2022] [Indexed: 06/15/2023]
Abstract
Diuron, a widely used phenylurea herbicide, has been frequently detected in marine organism and seawater all over the world. But the understanding of potential damage of diuron on reproduction in marine fish is currently not enough. Herein, marine medaka (Oryzias melastigma) were continuously exposed to 0, 5, 50, 500, and 5000 ng/L diuron from embryo (0 dpf) to adult (180 dpf) stage. The results suggested that diuron had an adverse influence on male reproduction for marine medaka, including decreased gonado somatic index, histological changes of testes, decreased mobility of sperm, and reduced fecundity through disrupting the balance of sex hormone and genes expression related to hypothalamus-pituitary-gonadal-liver (HPGL) axis. The reduced fecundity was reflected in abnormal sexual behaviors, further inhibited growth and development of F1 embryo and larvae. Moreover, the proportion of diuron metabolites (DCPMU and DCPU) was increased in fish, but the proportion of diuron was decreased with the increasing of exposure concentration. Diuron, DCPMU, and DCPU was identified as aryl hydrocarbon receptor agonist (AhR) agonist using in silico and in vivo models. DCPMU and DCPU induced the gene expression of AhR signaling and metabolizing enzymes (such as cyp1a1) in the livers. A great deal of major metabolites affected various organs related to HPGL axis of male marine medaka and led to serious reproductive disorders. Consequently, it reveals that long-term exposure to environmentally relevant concentrations of diuron and even AhR agonist pesticides pose a potential ecological risk for marine fish.
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Affiliation(s)
- Yixi Zhou
- State Key Laboratory of Cellular Stress Biology, United Diagnostic and Research Center for Clinical Genetics, Women and Children's Hospital, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Kongyang Zhu
- State Key Laboratory of Cellular Stress Biology, United Diagnostic and Research Center for Clinical Genetics, Women and Children's Hospital, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Qian Wang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Meng Chen
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Chengyong He
- State Key Laboratory of Cellular Stress Biology, United Diagnostic and Research Center for Clinical Genetics, Women and Children's Hospital, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Chunyan Yang
- State Key Laboratory of Cellular Stress Biology, United Diagnostic and Research Center for Clinical Genetics, Women and Children's Hospital, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China.
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, United Diagnostic and Research Center for Clinical Genetics, Women and Children's Hospital, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China; Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361102, China.
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9
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Wang Y, Li S, Yang S, Li X, Liu L, Ma X, Niu D, Duan X. Exposure to phenanthrene affects oocyte meiosis by inducing mitochondrial dysfunction and endoplasmic reticulum stress. Cell Prolif 2022; 56:e13335. [PMID: 36125441 PMCID: PMC9816937 DOI: 10.1111/cpr.13335] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/17/2022] [Accepted: 08/19/2022] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVES Phenanthrene (PHE) is one of the most abundant polycyclic aromatic hydrocarbons (PAHs), which is a widespread environmental contaminant. Various studies showed that PHE has adverse impacts on animals and human health. It has been shown that PHE exposure induced follicular atresia and endocrine dyscrasia in female mice. However, the potential mechanism regarding how PHE affects female reproductive system especially the oocyte quality has not been elucidated. METHODS AND RESULTS In this study, we set up PHE exposure model and found that PHE exposure compromised oocytes maturation competence by inhibiting spindle assembly and chromosomes alignment. Moreover, PHE exposure induced mitochondrial dysfunction and endoplasmic reticulum (ER) stress, leading to increased reactive oxygen species (ROS) and aberrant calcium levels in cytoplasm, eventually induced oxidative stress and DNA damage in oocytes. Furthermore, we found that oral administration of PHE caused the occurrence of oxidative stress and apoptosis in female ovary. In addition, the oocyte exhibited aberrant spindle morphology and failure of actin cap formation in metaphase II oocytes. CONCLUSIONS Taken together, our study demonstrated that mitochondrial dysfunction and ER stress-induced oxidative stress and DNA damage are the major cause of poor oocyte quality after PHE exposure.
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Affiliation(s)
- Yi Wang
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Si‐Hong Li
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Shu‐Jie Yang
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Xiao‐Qing Li
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Lu Liu
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Xiang Ma
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Dong Niu
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
| | - Xing Duan
- Key Laboratory of Applied Technology on Green‐Eco‐Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, China‐Australia Joint Laboratory for Animal Health Big Data AnalyticsCollege of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F UniversityHangzhouChina
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10
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Yan N, Wang WX. Maternal transfer and biodistribution of citrate and luminogens coated silver nanoparticles in medaka fish. JOURNAL OF HAZARDOUS MATERIALS 2022; 433:128862. [PMID: 35398793 DOI: 10.1016/j.jhazmat.2022.128862] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/29/2022] [Accepted: 04/02/2022] [Indexed: 06/14/2023]
Abstract
Given the wide applications of silver nanoparticles (AgNPs), it is necessary to evaluate their potentially adverse long-term effects. In this study, we performed a 100-day exposure of medaka fish to citrate and luminogens coated AgNPs and investigated the maternal transfer potentials and biodistribution of AgNPs. Following long-term AgNPs exposure, AgNPs were mainly distributed in the liver, followed by gills, intestine, and brain, but were also detected in the ovary and strongly colocalized with the dissolved Ag+. The quantified transfer efficiency of different Ag species was 1.56-5.07%. Long-term exposure of medaka to small size of AgNPs (20 nm) reduced the hatching rate attributable to the accumulation of AgNPs and their dissolved Ag+. The maternally transferred AgNPs were mainly concentrated in the Kupffer's vesicle of embryos, while their dissolved Ag+ was almost homogeneously distributed in the embryos. In contrast, the newly accumulated AgNPs were mainly absorbed at the chorion of embryos. During initial larval development, the maternally transferred AgNPs and their dissolved Ag+ were consistently concentrated in intestine. Significant dissolution of maternally transferred AgNPs occurred during larval development. Our results showed that long-term exposure to AgNPs caused distinct biodistribution in the next generation of medaka, and may have implications for assessing their potential adverse effects.
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Affiliation(s)
- Neng Yan
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong
| | - Wen-Xiong Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China; Research Centre for the Oceans and Human Health, City University of Hong Kong, Shenzhen Research Institute, Shenzhen 518057, China.
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11
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Guo J, Guo W, Zhang T, Zheng Y, Han B, Zhang Z, Liang N, Li Y, Shi Y, Zhang X, Nashun B. Gestational exposure to phenanthrene induces follicular atresia and endocrine dyscrasia in F1 adult female. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 232:113291. [PMID: 35158277 DOI: 10.1016/j.ecoenv.2022.113291] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 01/24/2022] [Accepted: 02/06/2022] [Indexed: 06/14/2023]
Abstract
Epidemiological investigations and animal studies demonstrate a significantly positive relationship between polycyclic aromatic hydrocarbons (PAHs) exposure and reproductive disorders. However, few researches are focused on the reproductive toxicity of low-molecular-weight PAHs (number of benzene ring ≤ 3) which occupy a large part of PAHs. Phenanthrene (Phe), a typical low-molecular-weight PAH, is one of the most abundant PAHs detected in foods. In the present study, oral treatment with Phe at a human exposure related level during gestation (60 μg/kg body weight every three days, six times in total) induced reproductive disorders in F1 adult female mice: the number of antral follicles (an immature stage of follicular development) were significantly increased, while the maturation of oocytes was inhibited and aggravated follicular atresia was observed; the serum levels of luteinizing hormone (LH), testosterone and estradiol were significantly reduced; the receptor of follicle-stimulating hormone (FSHR) and aromatase in the ovary were significantly upregulated; transcriptome analysis demonstrated that the phosphatidylinositol 3-kinase and protein kinase B (PI3K/Akt) signal pathway was upregulated, and the calcium signal pathway was disturbed, which probably accounts for the exacerbated atresia of the growing follicles and the excessive consumption of follicles. The reproductive toxicity of low-molecular-weight PAHs could not be neglected.
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Affiliation(s)
- Jiaojiao Guo
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China.
| | - Wei Guo
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Tong Zhang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Yajie Zheng
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Bo Han
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Zixuan Zhang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Nan Liang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Yi Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Yunshu Shi
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Xu Zhang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Buhe Nashun
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China.
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12
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Li Y, Yang G, Wang J, Lu L, Li X, Zheng Y, Zhang Z, Ru S. Microplastics increase the accumulation of phenanthrene in the ovaries of marine medaka (Oryzias melastigma) and its transgenerational toxicity. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127754. [PMID: 34838364 DOI: 10.1016/j.jhazmat.2021.127754] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/25/2021] [Accepted: 11/08/2021] [Indexed: 06/13/2023]
Abstract
Microplastics (MPs) are considered to exacerbate the impacts of hydrophobic organic pollutants on aquatic organisms through the carrier function, but whether MPs affect the transgenerational toxicity of pollutants is unclear. This study exposed adult female marine medaka to phenanthrene (Phe)-adsorbed MPs for 60 days to investigate the effects of MPs on the bioaccumulation, reproductive and transgenerational toxicity of Phe. Compared to Phe alone, co-exposure to Phe and 200 μg/L MPs significantly increased Phe bioaccumulation in the intestines and ovaries. Phe alone and Phe combined with MPs disrupted the regulation of the hypothalamus-pituitary-gonadal axis, and reduced vitellogenin levels and reproductive capacity of female fish. In particular, co-exposure to 200 μg/L MPs and Phe increased the rate of follicular atresia, inhibited ovarian maturity, and aggravated reproductive toxicity. Notably, maternal uptake of Phe could be transferred to the offspring, and embryonic accumulation increased with the concentrations of MPs. Moreover, MPs aggravated Phe-induced bradycardia in embryos, suggesting that MPs exacerbated the transgenerational toxicity of Phe. These findings reveal that the growing number of MPs in the ocean might amplify the adverse effects of organic pollutants on the health and population stability of marine fishes, and this problem merits more attention.
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Affiliation(s)
- Yuejiao Li
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Guangxin Yang
- Laboratory of Quality Safety and Processing for Aquatic Product, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China
| | - Jun Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Lin Lu
- School of Public Health, Qingdao University, Qingdao 266021, China
| | - Xuan Li
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Yuqi Zheng
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Zhenzhong Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Shaoguo Ru
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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13
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Merhabi F, Gomez E, Amine H, Rosain D, Halwani J, Fenet H. Occurrence, distribution, and ecological risk assessment of emerging and legacy contaminants in the Kadicha river in Lebanon. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:62499-62518. [PMID: 34212327 DOI: 10.1007/s11356-021-15049-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/17/2021] [Indexed: 06/13/2023]
Abstract
The Kadicha river basin in Northern Lebanon is an illustrative example of multiple pressures encountered in the Mediterranean region: it is a small coastal river affected by rapid urbanization, population growth (drastically impacted by the influx of Syrian refugees), and a chronic default of wastewater treatment. In this context, multiple classes of contaminants may attain the river accumulating in sediment. However, very little information is available in the literature on the contamination status in such stressed Mediterranean contexts. This study proposed a first contamination evaluation of a small Mediterranean river submitted to multiple pressures. Two sediment sampling campaigns along sites impacted by increasing urban gradient within the Kadicha river basin were performed to determine the occurrence and the environmental risks of both emerging and legacy contaminants. The results revealed the detection of the 41 studied compounds. The highest concentrations were attained by PAHs and polycyclic musks (up to 311.79, 94.22, and 81.13 ng/g of dry weight for PAH, cashmeran, and galaxolide, respectively). The discontinuous urbanized upstream area and the estuary were the most contaminated areas of the river. An environmental risk assessment showed a hazard quotient (HQ) higher than 1 for both legacy and emerging compounds (EHMC and 4-MBC), indicating a potential risk to benthic species. Monitoring campaigns and implementation of wastewater treatment plants should be encouraged as the anthropogenic pressure on small Mediterranean rivers will increase over the years.
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Affiliation(s)
- Fatmé Merhabi
- Hydrosciences Montpellier, IRD, CNRS, University of Montpellier, Montpellier, France.
- Water & Environment Science Laboratory, Faculty of Public Health (FSP III), Lebanese University, Tripoli, Lebanon.
| | - Elena Gomez
- Hydrosciences Montpellier, IRD, CNRS, University of Montpellier, Montpellier, France
| | - Helmieh Amine
- Water & Environment Science Laboratory, Faculty of Public Health (FSP III), Lebanese University, Tripoli, Lebanon
| | - David Rosain
- Hydrosciences Montpellier, IRD, CNRS, University of Montpellier, Montpellier, France
| | - Jalal Halwani
- Water & Environment Science Laboratory, Faculty of Public Health (FSP III), Lebanese University, Tripoli, Lebanon
| | - Hélène Fenet
- Hydrosciences Montpellier, IRD, CNRS, University of Montpellier, Montpellier, France
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14
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Geochemical Control of PAHs by Inflowing River Water to West Nanao Bay, Japan, and Its Influences on Ecological Risk: Small-Scale Changes Observed under Near-Background Conditions at an Enclosed Bay. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph181910310. [PMID: 34639613 PMCID: PMC8508535 DOI: 10.3390/ijerph181910310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/22/2021] [Accepted: 09/28/2021] [Indexed: 11/22/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs), even at low concentrations, have been shown to trigger changes in life cycles and provoke abnormal behaviors in numerous marine organisms. From May 2019 to September 2020, particulate and dissolved PAH concentrations were analyzed on the surface water of West Nanao Bay, Japan, to determinate their levels, emission sources, environmental pathways, and ecological risks at this remote but semi-enclosed bay. The 14 targeted PAHs were analyzed by HPLC-fluorescence detector. Mean total PAH concentrations were lower than 20.0 ng L−1 for most samples. Based on fluoranthene (Flu) to pyrene (Pyr) ([Flu]/[Flu + Pyr]) and benzo[a]anthracene (BaA) to chrysene (Chr) ([BaA]/[BaA + Chr]) isomeric ratios and a varimax rotated PCA, it was established that biomass combustion was the principal source in the particulate phase and that liquid fossil fuel combustion was the principal source in the dissolved phase. From salinity and turbidity distribution, riverine discharges were determined to be the major and continuous transportation pathway of particulate PAHs. It was observed that rain events had a role in the transport of dissolved PAHs. The risk quotients (RQ∑14 PAHs (NCs): 0–84.53) indicated that PAHs represented a very low to low acute environmental risk. The results of this study will contribute to filling the paradigm gap of ecotoxicological studies in remote areas, working as a booster for future in-lab studies of non-lethal implications of endocrine disruptors such as PAHs.
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15
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Sun S, Shi W, Tang Y, Han Y, Du X, Zhou W, Zhang W, Sun C, Liu G. The toxic impacts of microplastics (MPs) and polycyclic aromatic hydrocarbons (PAHs) on haematic parameters in a marine bivalve species and their potential mechanisms of action. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 783:147003. [PMID: 33865135 DOI: 10.1016/j.scitotenv.2021.147003] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/31/2021] [Accepted: 04/03/2021] [Indexed: 06/12/2023]
Abstract
Microplastics (MPs) and polycyclic aromatic hydrocarbons (PAHs) are universally detected in the marine ecosystem and may exert adverse impacts on marine species. Although under realistic pollution scenarios, PAH pollution usually occurs as a mixture of different PAH compounds, the toxic impacts of PAH mixtures on marine organisms remain largely unknown to date, including their interactions with other emergent pollutants such as MPs. In this study, the single and combined toxic impacts of polystyrene MPs and a mixture of PAHs (standard mix of 16 representative PAHs) on haematic parameters were evaluated in the blood clam Tegillarca granosa. Our data demonstrated that blood clams treated with the pollutants examined led to decreased total haemocyte count (THC), changed haematic composition, and inhibited phagocytosis of haemocytes. Further analyses indicated that MPs and a mixture of PAHs may exert toxic impacts on haematic parameters by elevating the intracellular contents of reactive oxygen species (ROS), giving rise to lipid peroxidation (LPO) and DNA damage, reducing the viability of haemocytes, and disrupting important molecular signalling pathways (indicated by significantly altered expressions of key genes). In addition, compared to clams treated with a single type of pollutant, coexposure to MPs and a mixture of PAHs exerted more severe adverse impacts on all the parameters investigated, indicating a significant synergistic effect of MPs and PAHs.
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Affiliation(s)
- Shuge Sun
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Wei Shi
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yu Tang
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yu Han
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Xueying Du
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Weishang Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Weixia Zhang
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Changsen Sun
- Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai 315604, PR China.
| | - Guangxu Liu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China.
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16
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Rasta M, Sattari M, Taleshi MS, Namin JI. Microplastics in different tissues of some commercially important fish species from Anzali Wetland in the Southwest Caspian Sea, Northern Iran. MARINE POLLUTION BULLETIN 2021; 169:112479. [PMID: 34022555 DOI: 10.1016/j.marpolbul.2021.112479] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 04/03/2021] [Accepted: 05/09/2021] [Indexed: 06/12/2023]
Abstract
The aim of this study was to investigate the occurrence of microplastics (MPs) in the gastrointestinal (GI) tract, muscle and gonads of 193 individuals of nine commercially-important fish species from Anzali Wetland between May and July 2018. Tissues were removed, digested by 10% KOH for 24 h at 60 °C, filtered on cellulose nitrate filter and then dried. MPs were found in all tissues. There were significant differences between the numbers of isolated particles from GI tract and control groups (procedural blank containing Milli Q water without tissue), while their abundance in the muscle and gonads did not display significant differences with control groups. Higher abundances of MPs were recorded in omnivorous fish (2.26 ± 2.93 items/individual) than carnivorous species (1.10 ± 1.10 items/individual) (P < 0.05). MPs were ranged from 20 to 4800 μm in size and were dominated by fiber-like in shape, polyethylene in polymer and black in color.
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Affiliation(s)
- Majid Rasta
- Department of Fisheries, Faculty of Natural Resources, University of Guilan, Sowmehsara, Iran
| | - Masoud Sattari
- Department of Fisheries, Faculty of Natural Resources, University of Guilan, Sowmehsara, Iran; Department of Marine Biology, The Caspian Sea Research Center, University of Guilan, Rasht, Iran.
| | - Mojtaba S Taleshi
- Department of Marine Chemistry, Faculty of Marine and Oceanic Sciences, University of Mazandaran, Babolsar, Iran
| | - Javid Imanpour Namin
- Department of Fisheries, Faculty of Natural Resources, University of Guilan, Sowmehsara, Iran
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17
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Zhou Y, Han X, Bao Y, Zhu Z, Huang J, Yang C, He C, Zuo Z. Chronic exposure to environmentally realistic levels of diuron impacts the behaviour of adult marine medaka (Oryzias melastigma). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 238:105917. [PMID: 34333370 DOI: 10.1016/j.aquatox.2021.105917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 05/28/2021] [Accepted: 07/13/2021] [Indexed: 06/13/2023]
Abstract
Diuron, a commonly used herbicide and antifouling biocide, has been frequently detected in seawater. The effects of diuron on fish behaviour are currently poorly understood. Herein, the marine medaka (Oryzias melastigma) was continuously exposed to environmentally realistic levels of diuron from the fertilised egg stage to the adult stage. Behavioural evaluation of adult marine medaka indicated that exposure to diuron increased anxiety in the light-dark test and increased predator avoidance. In addition, diuron exposure significantly reduced aggression, social interaction, shoaling, and learning and memory ability. However, only negligible variations in foraging behaviour and in behaviour in the novel tank test were observed. Marine medaka chronically exposed to diuron also showed decreased levels of dopamine in the brain, and changes were observed in the transcription of genes related to dopamine synthesis, degradation and receptors. Exposure to 5000 ng/L diuron caused significant downregulation of the expression of the genes of tyrosine hydroxylase and monoamine oxidase and significantly upregulated the expression of the genes of the D5 dopaminergic receptor. The relative expression of the D4 dopaminergic receptor was significantly upregulated in the 50, 500 and 5000 ng/L diuron-treated groups. These findings highlight the significant neurotoxic effects of diuron and the extent to which this may involve the dopaminergic system of the brain. More broadly, this study reveals the ecological risk associated with environmentally realistic levels of diuron in marine animals.
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Affiliation(s)
- Yixi Zhou
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Xue Han
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Yuanyuan Bao
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Zihan Zhu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Jiali Huang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Chunyan Yang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Chengyong He
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China.
| | - Zhenghong Zuo
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, Fujian 361102, China.
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18
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Chen Y, Zhang Y, Yu Z, Guan Y, Chen R, Wang C. Early-life phenanthrene exposure inhibits reproductive ability in adult zebrafish and the mechanism of action. CHEMOSPHERE 2021; 272:129635. [PMID: 33486456 DOI: 10.1016/j.chemosphere.2021.129635] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/25/2020] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
Phenanthrene (Phe) is a representative polycyclic aromatic hydrocarbon, and its ubiquity makes the risk assessment of Phe in aquatic ecosystems important. To assess the long-term effects of early-life Phe exposure on fish, the embryos of the model organism, zrbrafish (Danio rerio) were exposed to Phe at 0.05, 0.5, 5 and 50 nmol/L for 96 h and then raised to adulthood in clean water. Gonad development and reproductive functions were investigated in 120 day-old fish. The results showed that the percentage of spermatozoa in males and mature oocytes in females were decreased. The spawned egg numbers and the fertilization rate were reduced when the treated fish were mated with untreated fish. The transcription of genes involved in the brain-pituitary-gonadal axis was downregulated. The levels of both 17β-estradiol and testosterone were significantly decreased in the 5 and 50 nmol/L groups compared with the control group. The methylation levels in the promotor of gnrh3 (encoding gonadotropin releasing hormone) were significantly elevated in the adult fish in the 5 and 50 nmol/L treatments, which might be associated with the downregulation of gnrh3 transcription. These results suggested that embryonic exposure to Phe can inhibit the reproductive ability of adult fish, which should be adequately emphasized in its risk assessment.
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Affiliation(s)
- Ying Chen
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Ying Zhang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Zhenni Yu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Yue Guan
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Rong Chen
- Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, Xiamen University, Xiamen, Fujian, 361005, China
| | - Chonggang Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China; Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, Xiamen University, Xiamen, Fujian, 361005, China.
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Ijaz MU, Shahzadi S, Samad A, Ehsan N, Ahmed H, Tahir A, Rehman H, Anwar H. Dose-Dependent Effect of Polystyrene Microplastics on the Testicular Tissues of the Male Sprague Dawley Rats. Dose Response 2021; 19:15593258211019882. [PMID: 34158809 PMCID: PMC8182192 DOI: 10.1177/15593258211019882] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 12/19/2022] Open
Abstract
Due to the continuous increase in polystyrene microplastics (PS MPs) incorporation in the environment, growing number of adverse effects on living organisms and ecosystem have become a global concern. Therefore, current study was planned to elucidate the impacts of 5 different concentrations control, 2, 20, 200, and 2000 μgL-1 of PS MPs on testicular tissues of rats. PS MPs significantly reduced the activities of antioxidant enzymes (catalase, superoxide dismutase and peroxidase) as well as total protein contents, while elevated the level of lipid peroxidation and reactive oxygen species. Moreover, expressions of steroidogenic enzymes (3β-hydroxysteroid dehydrogenase, 17β-hydroxysteroid dehydrogenase and steroidogenic acute regulatory protein) as well as the levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH) in plasma, intra-testicular testosterone and plasma testosterone were reduced and a significant (P < 0.05) reduction was noticed in the sperm count, motility and viability. Furthermore, PS MPs significantly up-regulated the expressions of Bax and caspase-3, while down-regulated the Bcl-2 expression. The histomorphological assessment revealed significant damages in the testicles as well as decrease in the number of germ cells (spermatogenic, spermatocytes and spermatids). Collectively, PS MPs generated oxidative stress (OS) and caused potential damage to the testicles of rats in a dose-dependent manner.
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Affiliation(s)
- Muhammad Umar Ijaz
- Department of Zoology, Wildlife and Fisheries, University of
Agriculture, Faisalabad, Pakistan
| | - Sabahat Shahzadi
- Department of Zoology, Wildlife and Fisheries, University of
Agriculture, Faisalabad, Pakistan
| | - Abdul Samad
- Department of Zoology, Wildlife and Fisheries, University of
Agriculture, Faisalabad, Pakistan
| | - Nazia Ehsan
- Department of Zoology, Wildlife and Fisheries, University of
Agriculture, Faisalabad, Pakistan
| | - Hussain Ahmed
- Department of Zoology, The University of Buner, Khyber Pakhtunkhwa,
Pakistan
| | - Arfa Tahir
- Department of Zoology, Wildlife and Fisheries, University of
Agriculture, Faisalabad, Pakistan
| | - Humaira Rehman
- Reproductive Physiology Laboratory, Department of Animal Sciences,
Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Haseeb Anwar
- Department of Physiology, Government College University, Faisalabad,
Pakistan
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20
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Yin X, Liu Y, Zeb R, Chen F, Chen H, Wang KJ. The intergenerational toxic effects on offspring of medaka fish Oryzias melastigma from parental benzo[a]pyrene exposure via interference of the circadian rhythm. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 267:115437. [PMID: 32866872 DOI: 10.1016/j.envpol.2020.115437] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 08/10/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
Benzo[a]pyrene (BaP), a widely existed polycyclic aromatic hydrocarbon pollutant in aquatic environment, has toxic effects on marine animals and their generations, but the intergenerational immunotoxic mechanism underlying has not been clearly understood. In the study, the offspring of marine medaka (oryzias melastigma) which were exposed to 0.5 μg L-1 BaP suffered from circadian rhythm oscillation disorders and severe DNA damage. Many clock-associated genes like per1 were significantly modulated in offspring, both per1 and p53 were significantly inhibited that altered the progression of cell cycle and inhibited DNA repair, which possibly resulted in the increased mortality of offspring. The hypermethylation of the per1 promotor and abnormal levels of N6-methyladenosine (m6A) suggested that the underlying mechanism was probably related to the epigenetic modification. Moreover, the offspring from paternal BaP exposure had more severe DNA damage and a higher degree of hypermethylation than those from maternal exposure. F1 larvae from BaP-exposed parents were more sensitive to BaP exposure, showing that the expression of immune and metabolism-related genes were significantly up-regulated. Taken together, the parental toxicity induced by BaP could be passed to F1 generation and the mechanism underlying was probably associated with a characteristic circadian rhythm disorder.
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Affiliation(s)
- Xiaohan Yin
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China
| | - Yong Liu
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China
| | - Rabia Zeb
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China
| | - Fangyi Chen
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China; State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China; Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China
| | - Huiyun Chen
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China; State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China; Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China
| | - Ke-Jian Wang
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China; State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China; Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China.
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21
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Rigaud C, Eriksson A, Rokka A, Skaugen M, Lihavainen J, Keinänen M, Lehtivuori H, Vehniäinen ER. Retene, pyrene and phenanthrene cause distinct molecular-level changes in the cardiac tissue of rainbow trout (Oncorhynchus mykiss) larvae, part 2 - Proteomics and metabolomics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 746:141161. [PMID: 32750582 DOI: 10.1016/j.scitotenv.2020.141161] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/09/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are global contaminants of concern. Despite several decades of research, their mechanisms of toxicity are not very well understood. Early life stages of fish are particularly sensitive with the developing cardiac tissue being a main target of PAHs toxicity. The mechanisms of cardiotoxicity of the three widespread model polycyclic aromatic hydrocarbons (PAHs) retene, pyrene and phenanthrene were explored in rainbow trout (Oncorhynchus mykiss) early life stages. Newly hatched larvae were exposed to sublethal doses of each individual PAH causing no detectable morphometric alterations. Changes in the cardiac proteome and metabolome were assessed after 7 or 14 days of exposure to each PAH. Phase I and II enzymes regulated by the aryl hydrocarbon receptor were significantly induced by all PAHs, with retene being the most potent compound. Retene significantly altered the level of several proteins involved in key cardiac functions such as muscle contraction, cellular tight junctions or calcium homeostasis. Those findings were quite consistent with previous reports regarding the effects of retene on the cardiac transcriptome. Significant changes in proteins linked to iron and heme metabolism were observed following exposure to pyrene. While phenanthrene also altered the levels of several proteins in the cardiac tissue, no clear mechanisms or pathways could be highlighted. Due to high variability between samples, very few significant changes were detected in the cardiac metabolome overall. Slight but significant changes were still observed for pyrene and phenanthrene, suggesting possible effects on several energetic or signaling pathways. This study shows that early exposure to different PAHs can alter the expression of key proteins involved in the cardiac function, which could potentially affect negatively the fitness of the larvae and later of the juvenile fish.
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Affiliation(s)
- Cyril Rigaud
- Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland.
| | - Andreas Eriksson
- Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Anne Rokka
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Morten Skaugen
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Jenna Lihavainen
- Department of Environmental and Biological Sciences, Joensuu Campus, University of Eastern Finland, Joensuu, Finland
| | - Markku Keinänen
- Department of Environmental and Biological Sciences, Joensuu Campus, University of Eastern Finland, Joensuu, Finland
| | - Heli Lehtivuori
- Department of Physics, Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Eeva-Riikka Vehniäinen
- Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland
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22
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Rigaud C, Eriksson A, Krasnov A, Wincent E, Pakkanen H, Lehtivuori H, Ihalainen J, Vehniäinen ER. Retene, pyrene and phenanthrene cause distinct molecular-level changes in the cardiac tissue of rainbow trout (Oncorhynchus mykiss) larvae, part 1 - Transcriptomics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 745:141031. [PMID: 32738692 DOI: 10.1016/j.scitotenv.2020.141031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/29/2020] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are contaminants of concern that impact every sphere of the environment. Despite several decades of research, their mechanisms of toxicity are still poorly understood. This study explores the mechanisms of cardiotoxicity of the three widespread model PAHs retene, pyrene and phenanthrene in the rainbow trout (Oncorhynchus mykiss) early life stages. Newly hatched larvae were exposed to each individual compound at sublethal doses causing no significant increase in the prevalence of deformities. Changes in the cardiac transcriptome were assessed after 1, 3, 7 and 14 days of exposure using custom Salmo salar microarrays. The highest number of differentially expressed genes was observed after 1 or 3 days of exposure, and retene was the most potent compound in that regard. Over-representation analyses suggested that genes related to cardiac ion channels, calcium homeostasis and muscle contraction (actin binding, troponin and myosin complexes) were especially targeted by retene. Pyrene was also able to alter similar myosin-related genes, but at a different timing and in an opposite direction, suggesting compound-specific mechanisms of toxicity. Pyrene and to a lesser extent phenanthrene were altering key genes linked to the respiratory electron transport chain and to oxygen and iron metabolism. Overall, phenanthrene was not very potent in inducing changes in the cardiac transcriptome despite being apparently metabolized at a slower rate than retene and pyrene. The present study shows that exposure to different PAHs during the first few days of the swim-up stage can alter the expression of key genes involved into the cardiac development and function, which could potentially affect negatively the fitness of the larvae in the long term.
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Affiliation(s)
- Cyril Rigaud
- Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland.
| | - Andreas Eriksson
- Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Aleksei Krasnov
- Norwegian Institute of Food, Fisheries and Aquaculture Research, Ås, Norway
| | - Emma Wincent
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Hannu Pakkanen
- Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Heli Lehtivuori
- Department of Physics, Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Janne Ihalainen
- Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Eeva-Riikka Vehniäinen
- Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland
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23
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Liang P, Saqib HSA, Ni X, Shen Y. Long-read sequencing and de novo genome assembly of marine medaka (Oryzias melastigma). BMC Genomics 2020; 21:640. [PMID: 32938378 PMCID: PMC7493909 DOI: 10.1186/s12864-020-07042-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 08/31/2020] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Marine medaka (Oryzias melastigma) is considered as an important ecotoxicological indicator to study the biochemical, physiological and molecular responses of marine organisms towards increasing amount of pollutants in marine and estuarine waters. RESULTS In this study, we reported a high-quality and accurate de novo genome assembly of marine medaka through the integration of single-molecule sequencing, Illumina paired-end sequencing, and 10X Genomics linked-reads. The 844.17 Mb assembly is estimated to cover more than 98% of the genome and is more continuous with fewer gaps and errors than the previous genome assembly. Comparison of O. melastigma with closely related species showed significant expansion of gene families associated with DNA repair and ATP-binding cassette (ABC) transporter pathways. We identified 274 genes that appear to be under significant positive selection and are involved in DNA repair, cellular transportation processes, conservation and stability of the genome. The positive selection of genes and the considerable expansion in gene numbers, especially related to stimulus responses provide strong supports for adaptations of O. melastigma under varying environmental stresses. CONCLUSIONS The highly contiguous marine medaka genome and comparative genomic analyses will increase our understanding of the underlying mechanisms related to its extraordinary adaptation capability, leading towards acceleration in the ongoing and future investigations in marine ecotoxicology.
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Affiliation(s)
- Pingping Liang
- College of the Environment and Ecology, Xiamen University, Xiamen, 361102, China
| | - Hafiz Sohaib Ahmed Saqib
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xiaomin Ni
- College of the Environment and Ecology, Xiamen University, Xiamen, 361102, China
- Fudan University, Shanghai, 200240, China
| | - Yingjia Shen
- College of the Environment and Ecology, Xiamen University, Xiamen, 361102, China.
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24
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Bhandari RK, Wang X, Saal FSV, Tillitt DE. Transcriptome analysis of testis reveals the effects of developmental exposure to bisphenol a or 17α-ethinylestradiol in medaka (Oryzias latipes). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 225:105553. [PMID: 32622090 PMCID: PMC7387123 DOI: 10.1016/j.aquatox.2020.105553] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 05/19/2020] [Accepted: 06/21/2020] [Indexed: 06/04/2023]
Abstract
Endocrine disrupting chemicals (EDCs) can induce abnormalities in organisms via alteration of molecular pathways and subsequent disruption of endocrine functions. Bisphenol A (BPA) and 17α-ethinylestradiol (EE2) are ubiquitous EDCs in the environment. Many aquatic organisms, including fish, are often exposed to varying concentrations of BPA and EE2 throughout their lifespan. Both BPA and EE2 can activate estrogenic signaling pathways and cause adverse effects on reproduction via alteration of pathways associated with steroidogenesis. However, transcriptional pathways that are affected by chronic exposure to these two ubiquitous environmental estrogens during embryonic, larval, and juvenile stages are not clearly understood. In the present study, we examined transcriptional alterations in the testis of medaka fish (Oryzias latipes) chronically exposed to a low concentration of BPA or EE2. Medaka were exposed to BPA (10 μg/L) or EE2 (0.01 μg/L) from 8 h post-fertilization (as embryos) to adulthood 50 days post fertilization (dpf), and transcriptional alterations in the testis were examined by RNA sequencing (RNA-seq). Transcriptomic profiling revealed 651 differentially expressed genes (DEGs) between BPA-exposed and control testes, while 1475 DEGs were found between EE2-exposed and control testes. Gene ontology (GO) analysis showed a significant enrichment of "intracellular receptor signaling pathway", "response to steroid hormone" and "hormone-mediated signaling pathway" in the BPA-induced DEGs, and of "cilium organization", "microtubule-based process" and "organelle assembly" in the EE2-induced DEGs. Pathway analysis showed significant enrichment of "integrin signaling pathway" in both treatment groups, and of "cadherin signaling pathway", "Alzheimer disease-presenilin pathway" in EE2-induced DEGs. Single nucleotide polymorphism (SNP) and insertion-deletion (Indel) analysis found no significant differences in mutation rates with either BPA or EE2 treatments. Taken together, global gene expression differences in testes of medaka during early stages of gametogenesis were responsive to chronic BPA and EE2 exposure.
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Affiliation(s)
- Ramji K Bhandari
- Biology Department, University of North Carolina Greensboro, Greensboro, NC 27412, United States; Division of Biological Sciences, University of Missouri, Columbia, MO 65211, United States; United States Geological Survey, Columbia Environmental Research Center, Columbia, MO 65201, United States.
| | - Xuegeng Wang
- Biology Department, University of North Carolina Greensboro, Greensboro, NC 27412, United States
| | - Frederick S Vom Saal
- Division of Biological Sciences, University of Missouri, Columbia, MO 65211, United States
| | - Donald E Tillitt
- United States Geological Survey, Columbia Environmental Research Center, Columbia, MO 65201, United States
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25
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Wang J, Li Y, Lu L, Zheng M, Zhang X, Tian H, Wang W, Ru S. Polystyrene microplastics cause tissue damages, sex-specific reproductive disruption and transgenerational effects in marine medaka (Oryzias melastigma). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 254:113024. [PMID: 31454586 DOI: 10.1016/j.envpol.2019.113024] [Citation(s) in RCA: 229] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 07/31/2019] [Accepted: 08/04/2019] [Indexed: 05/12/2023]
Abstract
The ubiquity of microplastics in the world's ocean has aroused great concern. However, the ecological effects of microplastics at environmentally realistic concentrations are unclear. Here we showed that exposure of marine medaka (Oryzias melastigma) to environmentally relevant concentrations of 10 μm polystyrene microplastics for 60 days not only led to microplastic accumulation in the gill, intestine, and liver, but also caused oxidative stress and histological changes. Moreover, 2, 20, and 200 μg/L microplastics delayed gonad maturation and decreased the fecundity of female fish. Alterations of the hypothalamus-pituitary-gonadal (HPG) axis were investigated to reveal the underlying mechanisms, and gene transcription analysis showed that microplastic exposure had significantly negative regulatory effects in female HPG axis. Transcription of genes involved in the steroidogenesis pathway in females were also downregulated. This disruption resulted in decreased concentrations of 17β-estradiol (E2) and testosterone (T) in female plasma. Furthermore, parental exposure to 20 μg/L microplastics postponed the incubation time and decreased the hatching rate, heart rate, and body length of the offspring. Overall, the present study demonstrated for the first time that environmentally relevant concentrations of microplastics had adverse effects on the reproduction of marine medaka and might pose a potential threat to marine fish populations.
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Affiliation(s)
- Jun Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Yuejiao Li
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Lin Lu
- School of Public Health, Qingdao University, Qingdao 266021, China
| | - Mingyi Zheng
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Xiaona Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Hua Tian
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Wei Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Shaoguo Ru
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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26
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Peng X, Sun X, Yu M, Fu W, Chen H, Chen J. Chronic exposure to environmental concentrations of phenanthrene impairs zebrafish reproduction. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 182:109376. [PMID: 31254851 DOI: 10.1016/j.ecoenv.2019.109376] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 06/18/2019] [Accepted: 06/20/2019] [Indexed: 05/22/2023]
Abstract
Phenanthrene (PHE) is a tricyclic polycyclic aromatic hydrocarbon which distributed extensively in the aquatic environment. However, the knowledge about its impact on fish reproduction is still limited, particularly under a chronic exposure regime. In this study, we exposed zebrafish (Danio rerio) embryos to environmentally relevant concentrations (0.2, 1.0, and 5.0 μg/L) of PHE for 4 months and assessed the impact on reproduction. The results demonstrated that egg production was decreased in fish exposed to PHE, with a significant reduction at 5.0 μg/L. The exposure significantly decreased the circulating concentrations of estradiol (E2) and testosterone (T) in female fish or E2 in male fish. In addition, plasma vitellogenin levels were significantly inhibited after PHE exposure in female fish. The transcription of hypothalamic-pituitary-gonadal (HPG) axis related genes (GnRH2, FSHβ, LHβ, 17β-HSD, CYP11A1, and CYP19a) were significantly altered in a sex-specific manner. In addition, embryos derived from exposed parents exhibited increased malformation and decreased hatching success in the F1 generation. Taken together, these results demonstrate that chronic exposure to environmentally relevant concentration of PHE could cause adverse effects on reproduction and impair the development of offspring, ultimately leading to fish population decline in aquatic environment.
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Affiliation(s)
- Xiandong Peng
- Obstetrics & Gynecology Hospital of Fudan University, Shanghai JiAi Genetics & IVF Institute, Shanghai, China
| | - Xiaoxi Sun
- Obstetrics & Gynecology Hospital of Fudan University, Shanghai JiAi Genetics & IVF Institute, Shanghai, China
| | - Min Yu
- Obstetrics & Gynecology Hospital of Fudan University, Shanghai JiAi Genetics & IVF Institute, Shanghai, China
| | - Wei Fu
- Obstetrics & Gynecology Hospital of Fudan University, Shanghai JiAi Genetics & IVF Institute, Shanghai, China
| | - Hua Chen
- Obstetrics & Gynecology Hospital of Fudan University, Shanghai JiAi Genetics & IVF Institute, Shanghai, China
| | - Jiazhou Chen
- Obstetrics & Gynecology Hospital of Fudan University, Shanghai JiAi Genetics & IVF Institute, Shanghai, China.
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27
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Vehniäinen ER, Haverinen J, Vornanen M. Polycyclic Aromatic Hydrocarbons Phenanthrene and Retene Modify the Action Potential via Multiple Ion Currents in Rainbow Trout Oncorhynchus mykiss Cardiac Myocytes. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:2145-2153. [PMID: 31237719 DOI: 10.1002/etc.4530] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/23/2019] [Accepted: 06/20/2019] [Indexed: 06/09/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous contaminants in aqueous environments. They affect cardiovascular development and function in fishes. The 3-ring PAH phenanthrene has recently been shown to impair cardiac excitation-contraction coupling by inhibiting Ca2+ and K+ currents in marine warm-water scombrid fishes. To see if similar events take place in a boreal freshwater fish, we studied whether the PAHs phenanthrene and retene (an alkylated phenanthrene) modify the action potential (AP) via effects on Na+ (INa ), Ca2+ (ICaL ), or K+ (IKr , IK1 ) currents in the ventricular myocytes of the rainbow trout (Oncorhynchus mykiss) heart. Electrophysiological characteristics of myocytes were measured using whole-cell patch clamp. Micromolar concentrations of phenanthrene and retene modified the shape of the ventricular AP, and retene profoundly shortened the AP at low micromolar concentrations. Both PAHs increased INa and reduced ICaL and IKr , but retene was more potent. Neither of the PAHs had an effect on IK1 . Our results show that phenanthrene and retene affect cardiac function in rainbow trout by a mechanism that involves multiple cardiac ion channels, and the final outcome of these changes (shortening of AP) is opposite to that observed in scombrid fishes (prolongation of AP). The results also show that retene and aryl hydrocarbon receptor (AhR) agonist have an additional mechanism of toxicity besides the previously known AhR-mediated, transcription-dependent one. Environ Toxicol Chem 2019;38:2145-2153. © 2019 SETAC.
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Affiliation(s)
- Eeva-Riikka Vehniäinen
- Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Jaakko Haverinen
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland
| | - Matti Vornanen
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland
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28
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Jasperse L, Levin M, Rogers K, Perkins C, Bosker T, Griffitt RJ, Sepúlveda MS, De Guise S. Parental exposure to Deepwater Horizon oil in different environmental scenarios alters development of sheepshead minnow (Cyprinodon variegatus) offspring. MARINE ENVIRONMENTAL RESEARCH 2019; 150:104762. [PMID: 31394415 DOI: 10.1016/j.marenvres.2019.104762] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/24/2019] [Accepted: 07/17/2019] [Indexed: 06/10/2023]
Abstract
The explosion of the Deepwater Horizon (DWH) oil exploration platform on April 20, 2010 began a catastrophic leak of approximately 640 million liters crude oil into the northern Gulf of Mexico (GOM), affecting more than 2100 km of coastline, including wetlands and estuaries that provide habitat and nursery for many aquatic species. Estuaries of the GOM are dynamic environments, with constant fluctuations in salinity and dissolved oxygen, including large hypoxic zones during summer months. Spawning fish in northern GOM estuaries following the DWH incident were at significant risk of oil exposure, and adverse environmental conditions at the time of exposure, such as hypoxia and low salinity, could have exacerbated developmental effects in the offspring. The present study investigated the effects of F0 parental oil exposure in different environmental scenarios on development of F1 sheepshead minnow (SHM) offspring. Adult SHM were exposed to the high-energy water accommodated fraction (HEWAF) of crude oil in three environmental scenarios: normoxic (NORM), hypoxic (HYP), and hypoxic with low salinity (HYP-LS). Parental HEWAF exposure in the NORM scenario resulted in developmental effects in F1 offspring, including altered heart rate, decreased length at hatch, and impaired prey capture. Co-exposure of F0 SHM to HEWAF and adverse environmental conditions altered HEWAF effects on F1 heart rate, hatch rate, prey capture, and survival. Time to hatch was not significantly impacted by parental HEWAF in any environmental scenario. The present study demonstrates that parental exposure to HEWAF results in developmental changes in F1 embryos, and co-exposure to adverse environmental conditions altered the effects for several developmental endpoints. These data suggest that SHM exposed to oil in estuaries experiencing hypoxia or low salinity may produce offspring with worsened outcomes. These developmental effects, in addition to previously reported reproductive effects in adult fish, could lead to long-term population level impacts for SHM.
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Affiliation(s)
- Lindsay Jasperse
- Department of Pathobiology and Veterinary Science, University of Connecticut, Storrs, CT, USA.
| | - Milton Levin
- Department of Pathobiology and Veterinary Science, University of Connecticut, Storrs, CT, USA
| | - Kara Rogers
- Department of Pathobiology and Veterinary Science, University of Connecticut, Storrs, CT, USA
| | - Christopher Perkins
- Center for Environmental Sciences and Engineering, University of Connecticut, Storrs, CT, USA
| | - Thijs Bosker
- Leiden University College/Institute of Environmental Sciences, Leiden University, The Hague, the Netherlands
| | - Robert J Griffitt
- Department of Coastal Sciences, The University of Southern Mississippi, Ocean Springs, MS, USA
| | - Maria S Sepúlveda
- Purdue University, Department of Forestry and Natural Resources, West Lafayette, IN, USA
| | - Sylvain De Guise
- Department of Pathobiology and Veterinary Science, University of Connecticut, Storrs, CT, USA; Connecticut Sea Grant College Program, Groton, CT, USA
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Duan M, Xiong D, Bai X, Gao Y, Xiong Y, Gao X, Ding G. Transgenerational effects of heavy fuel oil on the sea urchin Strongylocentrotus intermedius considering oxidative stress biomarkers. MARINE ENVIRONMENTAL RESEARCH 2018; 141:138-147. [PMID: 30177415 DOI: 10.1016/j.marenvres.2018.08.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 08/12/2018] [Accepted: 08/14/2018] [Indexed: 06/08/2023]
Abstract
Stranding of oil onto a coastline after an oil spill threatens the health of marine benthic organisms. Here, the transgenerational effects of exposure to stranded heavy fuel oil (HFO) on the sea urchin Strongylocentrotus intermedius were assessed. The column containing gravel coated with HFO was prepared in the laboratory to simulate HFO-contaminated gravel shorelines. Adult sea urchins were exposed for 21 days to either a HFO-oiled gravel column at the oil loading of 3000 μg oil/g gravel or a non-HFO-oiled gravel column (as the control treatment) and then offspring were either exposed to HFO or ambient seawater conditions. The sublethal exposure to HFO for 21 days induced polycyclic aromatic hydrocarbons (PAHs) accumulation in gonads, accompanied by increased levels of oxidative lipid, protein and DNA damage and a reduction in total antioxidant capacity. Analysis of gametes indicated that both maternal and paternal exposure could result in the transfer of PAHs and DNA damage to their offspring. Parental (maternal, paternal or both) exposure to HFO caused increases in malformation rates of offspring compared to those from control parents under ambient seawater condition. Continued HFO exposure in the offspring resulted in further increased malformation rates compared with those reared in ambient seawater, as well as oxidative lipid, protein and DNA damage. Furthermore, mother exposure history reduced the total antioxidant capacity of larvae to response to continued HFO exposure. Overall, the results suggest an increased sensitivity to toxic effects of HFO in larvae from exposed both parents compared with those from control parents in S. intermedius, which may consequently affect the recruitment and population maintenance.
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Affiliation(s)
- Meina Duan
- School of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, Liaoning, China
| | - Deqi Xiong
- School of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, Liaoning, China.
| | - Xue Bai
- School of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, Liaoning, China
| | - Yali Gao
- School of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, Liaoning, China
| | - Yijun Xiong
- Department of Biological Chemistry, Grinnell College, 1115 8th Ave, Grinnell, IA, 50112, USA
| | - Xiang Gao
- School of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, Liaoning, China
| | - Guanghui Ding
- School of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, Liaoning, China
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Danion M, Le Floch S, Cabon J, Louboutin L, Morin T. Transchem project - Part II: Transgenerational effects of long-term exposure to pendimethalin at environmental concentrations on the early development and viral pathogen susceptibility of rainbow trout (Oncorhynchus mykiss). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 202:126-135. [PMID: 30025381 DOI: 10.1016/j.aquatox.2018.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 06/27/2018] [Accepted: 07/03/2018] [Indexed: 06/08/2023]
Abstract
In the Transchem project, rainbow trout genitors were exposed to environmental concentrations of pendimethalin over a period of 18 months and two new first generations of offspring, F1_2013 and F1_2014, were obtained. We investigated the impact of direct chemical exposure on juveniles as well as the potential cumulative transgenerational and direct effects on the larval development and on the pathogen susceptibility of offspring. Depending on the chemical treatment or not of the adults, their offspring were distributed in the tanks of our experimental system, in two batches i.e. juveniles from the control genitors (G-) and others from the contaminated ones (G+), and then, half of the tanks were exposed daily to pendimethalin (Off+) while the others were used as controls (Off-). Viral challenges were performed on the offspring, before and after three months of direct chemical exposure, with strains of infectious hematopoietic necrosis virus (IHNV), viral haemorrhagic septicemia virus (VHSV) and sleeping disease alphavirus (SDV). Direct and transgenerational macroscopic effects were observed on offspring, with a percentage of abnormalities in offspring derived from the genitors exposed to pendimethalin (G+) significantly higher compared to those from the genitors from non-exposed group (G-). Before the direct chemical exposure, similar kinetics of mortality was observed between the offspring from the contaminated or control genitors after VHSV infection. With IHNV, the G+ group died in a slightly larger proportion compared to the G- group and seroconversion was greater for the G- group. For the SDV challenge, the mortality was delayed for the G+ offspring compared to the G- and seroconversion reached 65% in the G+ group compared to 45% in the G-, with similar antibody titres. After three months of direct chemical exposure, kinetics of mortality induced by IHNV infection were similar for all groups studied. Infection with SDV resulted in a cumulative mortality of 40% for the G- groups (Off- and Off+), significantly higher than those observed from the contaminated genitors G+. Proportion of seropositivity for SDV varied from 24 to 47% depending on the group, with very low quantities of secreted antibodies. Lastly, the direct exposure of offspring could impact the capacity of fish to adapt their haematological parameters to environmental and physiological changes, and underlines the potential toxic effects on the next generations.
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Affiliation(s)
- Morgane Danion
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Ploufragan-Plouzané Laboratory, Fish Viral Pathology Unit, Technopôle Brest-Iroise, 29280 Plouzané, France; European University of Brittany, France.
| | - Stéphane Le Floch
- Centre of Documentation, Research and Experimentation on Accidental Water Pollution (CEDRE), 715 Rue Alain Colas, 29200 Brest, France
| | - Joelle Cabon
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Ploufragan-Plouzané Laboratory, Fish Viral Pathology Unit, Technopôle Brest-Iroise, 29280 Plouzané, France; European University of Brittany, France
| | - Lénaïg Louboutin
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Ploufragan-Plouzané Laboratory, Fish Viral Pathology Unit, Technopôle Brest-Iroise, 29280 Plouzané, France; European University of Brittany, France
| | - Thierry Morin
- French Agency for Food, Environmental and Occupational Health & Safety (ANSES), Ploufragan-Plouzané Laboratory, Fish Viral Pathology Unit, Technopôle Brest-Iroise, 29280 Plouzané, France; European University of Brittany, France
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Gao D, Lin J, Ou K, Chen Y, Li H, Dai Q, Yu Z, Zuo Z, Wang C. Embryonic exposure to benzo(a)pyrene inhibits reproductive capability in adult female zebrafish and correlation with DNA methylation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 240:403-411. [PMID: 29753248 DOI: 10.1016/j.envpol.2018.04.139] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 03/31/2018] [Accepted: 04/30/2018] [Indexed: 05/22/2023]
Abstract
This study was conducted to investigate the effects of embryonic short-term exposure to benzo(a)pyrene (BaP), a model polycyclic aromatic hydrocarbon, on ovarian development and reproductive capability in adult female zebrafish. In 1-year-old fish after embryonic exposure to BaP for 96 h, the gonadosomatic indices and the percentage of mature oocytes were significantly decreased in the 0.5, 5 and 50 nmol/L treatments. The spawned egg number, the fertilization rate and the hatching success were significantly reduced, while the malformation rate of the F1 unexposed larvae were increased. The mRNA levels of follicle-stimulating hormone, luteinizing hormone, ovarian cytochrome P450 aromatase cyp19a1a and cyp19b, estrogen receptor esr1 and esr2, and hepatic vitellogenin vtg1 and vtg2 genes, were down-regulated in adult female zebrafish that were exposed to BaP during embryonic stage. Both 17β-estradiol and testosterone levels were reduced in the ovary of adult females. The methylation levels of the gonadotropin releasing hormone (GnRH) gene gnrh3 were significantly increased in the adult zebrafish brain, and those of the GnRH receptor gene gnrhr3 were elevated both in the larvae exposed to BaP and in the adult brain, which might cause the down-regulation of the mRNA levels of gnrh3 and gnrhr3. This epigenetic change caused by embryonic exposure to BaP might be a reason for physiological changes along the brain-pituitary-gonad axis. These results suggest that short-term exposure in early life should be included and evaluated in any risk assessment of pollutant exposure to the reproductive health of fish.
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Affiliation(s)
- Dongxu Gao
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Jing Lin
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Kunlin Ou
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Ying Chen
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Hongbin Li
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Qinhua Dai
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Zhenni Yu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Chonggang Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, PR China.
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Loughery JR, Kidd KA, Mercer A, Martyniuk CJ. Part B: Morphometric and transcriptomic responses to sub-chronic exposure to the polycyclic aromatic hydrocarbon phenanthrene in the fathead minnow (Pimephales promelas). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 199:77-89. [PMID: 29621673 DOI: 10.1016/j.aquatox.2018.03.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/21/2018] [Accepted: 03/21/2018] [Indexed: 06/08/2023]
Abstract
Phenanthrene is a tricyclic polycyclic aromatic hydrocarbon and environmental contaminant found in high concentrations around urban catchments and in the vicinity of oil extraction activities. Fish exposed to phenanthrene can exhibit altered reproductive hormone profiles and/or differences within gonadosomatic index and altered gamete proportions, but the mechanisms underlying these changes are not fully understood. In this study, we conducted a sub-chronic bioassay and measured transcriptional responses in the liver, the major tissue involved in generating lipids for oocyte growth. Adult male and female fathead minnow (Pimephales promelas) were exposed to an average measured concentration of 202 μg phenanthrene/L for a 7 week period. Condition factor was reduced in both males and females, while female fish also showed decreased gonadosomatic index relative to control females. In females exposed to phenanthrene, perinucleolar proportions were increased ∼1.9-fold relative to the control group whereas the proportions of vitellogenic oocytes decreased ∼8.8 fold. In males exposed to phenanthrene, spermatogonia proportions were increased ∼2.3 fold in testicular tissues compared to control fish. Thus, gametes were at an earlier stage of maturation in phenanthrene-treated fish compared to controls. However, no differences were detected in the production of 17β-estradiol or testosterone from the gonad in either sex. Catalase activity was also assessed in the liver as a measure of oxidative stress and this biomarker did not change in activity in either sex. In addition to endpoints in the ovary, the female hepatic transcriptome was measured, as this tissue produces lipids for oocyte maturation. Transcriptomic responses to phenanthrene exposure suggested a reduction in vitellogenin mRNA, and lipid metabolism and immune system pathways. Comparisons of hepatic transcriptome responses with Part A (72 h phenanthrene exposure) showed that energy homeostasis pathways were consistently altered following phenanthrene exposure over multiple durations and concentrations. We suggest that altered energy homeostasis may be adversely affecting reproductive efforts, as impaired reproduction has been observed in other studies investigating polycyclic aromatic hydrocarbons.
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Affiliation(s)
- Jennifer R Loughery
- University of New Brunswick, Department of Biological Sciences and Canadian Rivers Institute, 100 Tucker Park Rd., Saint John, NB, E2L 4L5, Canada
| | - Karen A Kidd
- University of New Brunswick, Department of Biological Sciences and Canadian Rivers Institute, 100 Tucker Park Rd., Saint John, NB, E2L 4L5, Canada
| | - Angella Mercer
- University of New Brunswick, Department of Biological Sciences and Canadian Rivers Institute, 100 Tucker Park Rd., Saint John, NB, E2L 4L5, Canada
| | - Chris J Martyniuk
- University of New Brunswick, Department of Biological Sciences and Canadian Rivers Institute, 100 Tucker Park Rd., Saint John, NB, E2L 4L5, Canada.
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Loughery JR, Kidd KA, Mercer A, Martyniuk CJ. Part A: Temporal and dose-dependent transcriptional responses in the liver of fathead minnows following short term exposure to the polycyclic aromatic hydrocarbon phenanthrene. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 199:90-102. [PMID: 29621674 DOI: 10.1016/j.aquatox.2018.03.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/21/2018] [Accepted: 03/21/2018] [Indexed: 06/08/2023]
Abstract
Phenanthrene is a low molecular weight polycyclic aromatic hydrocarbon (PAH) that is composed of three fused benzene rings. PAHs are formed naturally through incomplete combustion of organic materials, and are environmental contaminants due to anthropogenic activities (e.g. oil extraction and refining, industrial and municipal effluents, fossil fuel burning). Fish exposed to PAHs such as phenanthrene have been reported to exhibit altered reproductive axis endpoints, however the mechanisms that underlie these responses are not fully characterized. To better understand effects at the mechanistic level, we applied transcriptomics to identify molecular pathways altered after acute exposure to phenanthrene on both a dose and temporal scale. Female fathead minnow (Pimephales promelas) were exposed to an average measured concentration of either 0, 29.8, 389 or 943 μg phenanthrene/L for 24, 48, and 72 h in a static-renewal bioassay. Ovaries were assessed for oocyte distribution as well as in vitro 17β-estradiol production and gene expression for transcripts related to steroidogenesis and estrogen signalling. In addition, the liver transcriptome was measured as this tissue is the primary source of the egg yolk precursor protein vitellogenin. Exposure to 29.8 μg phenanthrene/L increased proportions of the cortical alveolar stage in the ovaries after 48 h while the proportion of cortical alveolar oocyte were decreased in fish exposed to 943 μg phenanthrene/L for 48 h. Phenanthrene did not affect 17β-estradiol production at any time or dose, and did not affect transcripts associated with hormone synthesis nor signalling pathways. In the liver, the transcriptome showed fewer genes in common across time when compared to those transcripts affected by concentration at a single time point. Cholesterol metabolism was the only pathway perturbed in the liver following all comparisons in both the dose and time course experiments. Our data suggest that transcriptome networks associated with hepatic lipid metabolism are rapidly affected by phenanthrene, and this may indirectly reduce resources available for reproductive efforts.
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Affiliation(s)
- Jennifer R Loughery
- Department of Biological Sciences and Canadian Rivers Institute, University of New Brunswick, Saint John, NB, E2L 4L5, Canada
| | - Karen A Kidd
- Department of Biological Sciences and Canadian Rivers Institute, University of New Brunswick, Saint John, NB, E2L 4L5, Canada
| | - Angella Mercer
- Department of Biological Sciences and Canadian Rivers Institute, University of New Brunswick, Saint John, NB, E2L 4L5, Canada
| | - Christopher J Martyniuk
- Department of Biological Sciences and Canadian Rivers Institute, University of New Brunswick, Saint John, NB, E2L 4L5, Canada.
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Horri K, Alfonso S, Cousin X, Munschy C, Loizeau V, Aroua S, Bégout ML, Ernande B. Fish life-history traits are affected after chronic dietary exposure to an environmentally realistic marine mixture of PCBs and PBDEs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 610-611:531-545. [PMID: 28830046 DOI: 10.1016/j.scitotenv.2017.08.083] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 08/09/2017] [Accepted: 08/09/2017] [Indexed: 06/07/2023]
Abstract
Polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) are persistent organic pollutants that have been shown to affect fish life-history traits such as reproductive success, growth and survival. At the individual level, their toxicity and underlying mechanisms of action have been studied through experimental exposure. However, the number of experimental studies approaching marine environmental situations is scarce, i.e., in most cases, individuals are exposed to either single congeners, or single types of molecules, or high concentrations, so that results can hardly be transposed to natural populations. In the present study, we evaluated the effect of chronic dietary exposure to an environmentally realistic marine mixture of PCB and PBDE congeners on zebrafish life-history traits from larval to adult stage. Exposure was conducted through diet from the first meal and throughout the life cycle of the fish. The mixture was composed so as to approach environmentally relevant marine conditions in terms of both congener composition and concentrations. Life-history traits of exposed fish were compared to those of control individuals using several replicate populations in each treatment. We found evidence of slower body growth, but to a larger asymptotic length, and delayed spawning probability in exposed fish. In addition, offspring issued from early spawning events of exposed fish exhibited a lower larval survival under starvation condition. Given their strong dependency on life-history traits, marine fish population dynamics and associated fisheries productivity for commercial species could be affected by such individual-level effects of PCBs and PBDEs on somatic growth, spawning probability and larval survival.
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Affiliation(s)
- Khaled Horri
- Ifremer, Laboratoire Ressources Halieutiques, Centre Manche Mer du Nord, 150 quai Gambetta, F-62200 Boulogne-sur-mer, France; UMR-I 02 SEBIO, INERIS, URCA, ULH, Unité Stress Environnementaux et BIOsurveillance des milieux aquatiques, FR CNRS 3730 Scale, Université Le Havre Normandie, F-76063 Le Havre Cedex, France.
| | - Sébastien Alfonso
- Ifremer, Laboratoire Ressources Halieutiques, Station de La Rochelle, Place Gaby Coll, BP7, F-17137 L'Houmeau, France
| | - Xavier Cousin
- UMR MARBEC, IFREMER, IRD, UM2, CNRS, Laboratoire Adaptation et Adaptabilités des Animaux et des Systèmes, Route de Maguelone, F-34250 Palavas, France; INRA, UMR GABI, INRA, AgroParisTech, Université Paris-Saclay, F-78350 Jouy-en-Josas, France
| | - Catherine Munschy
- Ifremer, Laboratoire Biogéochimie des Contaminants Organiques, Centre Atlantique, Rue de l'Ile d'Yeu, BP 21105, F-44311 Nantes Cedex 3, France
| | - Véronique Loizeau
- Ifremer, Laboratoire Biogéochimie des Contaminants Organiques, Centre Bretagne, ZI Pointe du Diable, CS 10070, F-29280 Plouzané, France
| | - Salima Aroua
- UMR-I 02 SEBIO, INERIS, URCA, ULH, Unité Stress Environnementaux et BIOsurveillance des milieux aquatiques, FR CNRS 3730 Scale, Université Le Havre Normandie, F-76063 Le Havre Cedex, France
| | - Marie-Laure Bégout
- Ifremer, Laboratoire Ressources Halieutiques, Station de La Rochelle, Place Gaby Coll, BP7, F-17137 L'Houmeau, France
| | - Bruno Ernande
- Ifremer, Laboratoire Ressources Halieutiques, Centre Manche Mer du Nord, 150 quai Gambetta, F-62200 Boulogne-sur-mer, France
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Dong X, Zhang L, Chen M, Yang Z, Zuo Z, Wang C. Exposure to difenoconazole inhibits reproductive ability in male marine medaka (Oryzias melastigma). J Environ Sci (China) 2018; 63:126-132. [PMID: 29406096 DOI: 10.1016/j.jes.2017.05.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 03/29/2017] [Accepted: 05/17/2017] [Indexed: 06/07/2023]
Abstract
Difenoconazole (DFZ) is a triazole fungicide which has been detected in the aquatic environment, including estuaries and embayments. However, few studies addressing the reproductive toxicity and transgenerational effects of DFZ on marine fishes are available. The present study was conducted to investigate the effects of DFZ on male marine medaka (Oryzias melastigma). After exposure of the embryo to 1, 10, 100 and 1000ng/L DFZ for 180days, the gonadosomatic index was significantly decreased in the 1000ng/L treatment. The number of sperm was reduced while the abundances of spermatocytes and spermatogonia in the testes were increased in all the treatments. The mRNA levels of salmon-type gnrh (sgnrh), the luteinizing hormone (lhβ) and the follicle-stimulating hormone (fshβ) genes in the brain all exhibited a significant down-regulation, the expression of androgen receptors (arα and arβ) was decreased and that of estrogen receptor β and cytochrome P450 aromatase (cyp19B) was increased in the testes. The expression levels of cyp19A and cyp19B were increased in the liver. The decrease of ars mRNA levels might be one of the reasons causing the reduction of sperm. The down-regulation of sgnrh, lhβ and fshβ mRNA levels suggested that DFZ might impact the spermatogenesis via the brain-pituitary-gonad pathway. The decrease of the fertilization success, the hatch ability and the swim-up success in the F1 generation indicated that DFZ pollution at environmental levels might cause a decrease of wild fish populations.
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Affiliation(s)
- Xiaocui Dong
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China.
| | - Lemeng Zhang
- Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, Xiamen University, Xiamen, China
| | - Meng Chen
- Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, Xiamen University, Xiamen, China
| | - Zhibin Yang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Chonggang Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China; Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, Xiamen University, Xiamen, China.
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36
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Polycyclic aromatic hydrocarbons and female reproductive health: A scoping review. Reprod Toxicol 2017; 73:61-74. [DOI: 10.1016/j.reprotox.2017.07.012] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 07/18/2017] [Accepted: 07/20/2017] [Indexed: 12/14/2022]
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37
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Mu J, Chernick M, Dong W, Di Giulio RT, Hinton DE. Early life co-exposures to a real-world PAH mixture and hypoxia result in later life and next generation consequences in medaka (Oryzias latipes). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 190:162-173. [PMID: 28728047 PMCID: PMC5584607 DOI: 10.1016/j.aquatox.2017.06.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 06/21/2017] [Accepted: 06/25/2017] [Indexed: 05/12/2023]
Abstract
Acute effects of individual and complex mixtures of polycyclic aromatic hydrocarbons (PAHs) are well documented in vertebrate species. Hypoxia in fish reduces metabolic rate and reproduction. However, less is known about the later life consequences stemming from early-life exposure to PAHs or hypoxia, particularly their co-exposure. To address this, medaka (Oryzias latipes) embryos were exposed to a complex PAH mixture sediment extract from the Elizabeth River, VA (ERSE) at concentrations of 0.1, 0.5, or 1.0% or to one of three different hypoxia scenarios: continuous, nocturnal, or late stage embryogenesis hypoxia. Co-exposures with 0.1% ERSE and each of the hypoxia scenarios were conducted. Results included decreased survival with ERSE, hatching delays with hypoxia, and higher occurrences of deformities with each. The continuous hypoxia scenario caused the most significant changes in all endpoints. These early-life exposures altered later-life growth, impaired reproductive capacity, and reduced the quality of their offspring. ERSE alone resulted in a female-biased sex ratio while continuous or nocturnal hypoxia produced significantly greater numbers of males; and co-exposure produced an equal sex ratio. Exposure to a PAH mixture and hypoxia during early life stages has meaningful later-life and next generational consequences.
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Affiliation(s)
- Jingli Mu
- Nicholas School of the Environment, Duke University, Durham, NC, USA; Key Laboratory for Ecological Environment in Coastal Areas (SOA), National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Melissa Chernick
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Wu Dong
- Nicholas School of the Environment, Duke University, Durham, NC, USA; College of Animal Science and Technology, Inner Mongolia University for the Nationalities/Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, Tongliao, China
| | | | - David E Hinton
- Nicholas School of the Environment, Duke University, Durham, NC, USA.
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Dong X, Zuo Z, Guo J, Li H, Zhang L, Chen M, Yang Z, Wang C. Reproductive effects of life-cycle exposure to difenoconazole on female marine medaka (Oryzias melastigma). ECOTOXICOLOGY (LONDON, ENGLAND) 2017; 26:772-781. [PMID: 28432496 DOI: 10.1007/s10646-017-1808-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/11/2017] [Indexed: 06/07/2023]
Abstract
Difenoconazole (DFZ) is a widely used triazole fungicide which has been detected in some estuaries and embayments. This study was conducted to investigate the effects of DFZ on ovarian development in female marine medaka (Oryzias melastigma). After 180 days exposure of the embryo to DFZ (0, 1, 10, 100 and 1000 ng/L), the gonadosomatic index and percentage of mature oocytes produced were significantly reduced in the 1, 10 and 100 ng/L treatments but not the 1000 ng/L treatment compared to the control, thus exhibiting a U-shaped dose response curve. The relative mRNA levels of brain follicle-stimulating hormone, ovarian cytochrome P450 aromatase (CYP19s), hepatic estrogen receptors and vitellogenin, and the ratio of 17β-estradiol to testosterone in the muscle, also showed a U-shaped dose response, which was consistent with the development of oocytes. In addition, glutathione S-transferase activity in the ovary showed a U-shaped dose-response. These results gave an explanation for this U-shaped dose-response. The egg number produced, the hatch ability and the swim-up success in the F1 generation all showed a U-shaped dose response, indicating that exposure to DFZ at low concentrations can cause a decrease of fecundity and viability of the next generation. Thus, a more extensive evaluation of the impact of DFZ on marine fish reproduction at realistic environmental concentrations is needed.
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Affiliation(s)
- Xiaocui Dong
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Jiaojiao Guo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Hongbin Li
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Lemeng Zhang
- Key Laboratory of the Coastal and Wetland Ecosystems, Xiamen University, Ministry of Education, Xiamen, PR China
| | - Meng Chen
- Key Laboratory of the Coastal and Wetland Ecosystems, Xiamen University, Ministry of Education, Xiamen, PR China
| | - Zhibin Yang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Chonggang Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China.
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, PR China.
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Luderer U, Christensen F, Johnson WO, She J, Ip HSS, Zhou J, Alvaran J, Krieg EF, Kesner JS. Associations between urinary biomarkers of polycyclic aromatic hydrocarbon exposure and reproductive function during menstrual cycles in women. ENVIRONMENT INTERNATIONAL 2017; 100:110-120. [PMID: 28065424 PMCID: PMC5291797 DOI: 10.1016/j.envint.2016.12.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 12/01/2016] [Accepted: 12/21/2016] [Indexed: 05/25/2023]
Abstract
Essentially all women are exposed to polycyclic aromatic hydrocarbons (PAHs), formed during incomplete combustion of organic materials, including fossil fuels, wood, foods, and tobacco. PAHs are ovarian toxicants in rodents, and cigarette smoking is associated with reproductive abnormalities in women. Biomonitoring of hydroxylated PAH (OH-PAH) metabolites in urine provides an integrated measure of exposure to PAHs via multiple routes and has been used to characterize exposure to PAHs in humans. We hypothesized that concentrations of OH-PAHs in urine are associated with reproductive function in women. We recruited women 18-44years old, living in Orange County, California to conduct daily measurement of urinary luteinizing hormone (LH) and estrone 3-glucuronide (E13G) using a microelectronic fertility monitor for multiple menstrual cycles; these data were used to calculate endocrine endpoints. Participants also collected urine samples on cycle day 10 for measurement of nine OH-PAHs. Models were constructed for eight endpoints using a Bayesian mixed modeling approach with subject-specific random effects allowing each participant to act as a baseline for her set of measurements. We observed associations between individual OH-PAH concentrations and follicular phase length, follicular phase LH and E13G concentrations, preovulatory LH surge concentrations, and periovulatory E13G slope and concentration. We have demonstrated the feasibility of using urinary reproductive hormone data obtained via fertility monitors to calculate endocrine endpoints for epidemiological studies of ovarian function during multiple menstrual cycles. The results show that environmental exposure to PAHs is associated with changes in endocrine markers of ovarian function in women in a PAH-specific manner.
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Affiliation(s)
- Ulrike Luderer
- Center for Occupational and Environmental Health and Division of Occupational and Environmental Medicine, Department of Medicine, University of California Irvine, 100 Theory, Suite 100, Irvine, CA 92617, USA; Dept of Developmental and Cell Biology, University of California Irvine, Irvine, CA 92697, USA; Program in Public Health, University of California Irvine, Irvine, CA 92697, USA.
| | - Fletcher Christensen
- Department of Statistics, University of California Irvine, Irvine, CA 92697, USA.
| | - Wesley O Johnson
- Department of Statistics, University of California Irvine, Irvine, CA 92697, USA.
| | - Jianwen She
- Environmental Health Laboratory Branch, California Department of Public Health, Richmond, CA, USA.
| | - Ho Sai Simon Ip
- Environmental Health Laboratory Branch, California Department of Public Health, Richmond, CA, USA
| | - Junqiang Zhou
- Environmental Health Laboratory Branch, California Department of Public Health, Richmond, CA, USA
| | - Josephine Alvaran
- Environmental Health Laboratory Branch, California Department of Public Health, Richmond, CA, USA
| | - Edward F Krieg
- Division of Applied Research and Technology, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Public Health Service, US Department of Health and Human Services, 4676 Columbia Parkway, Cincinnati, OH 45226, USA.
| | - James S Kesner
- Division of Applied Research and Technology, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Public Health Service, US Department of Health and Human Services, 4676 Columbia Parkway, Cincinnati, OH 45226, USA.
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40
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Karami A, Romano N, Galloway T, Hamzah H. Virgin microplastics cause toxicity and modulate the impacts of phenanthrene on biomarker responses in African catfish (Clarias gariepinus). ENVIRONMENTAL RESEARCH 2016; 151:58-70. [PMID: 27451000 DOI: 10.1016/j.envres.2016.07.024] [Citation(s) in RCA: 208] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 07/11/2016] [Accepted: 07/15/2016] [Indexed: 05/20/2023]
Abstract
Despite the ubiquity of microplastics (MPs) in aquatic environments and their proven ability to carry a wide variety of chemicals, very little is known about the impacts of virgin or contaminant-loaded MPs on organisms. The primary aim of this study was to investigate the impacts of virgin or phenanthrene (Phe)-loaded low-density polyethylene (LDPE) fragments on a suite of biomarker responses in juvenile African catfish (Clarias gariepinus). Virgin LDPE (50 or 500µg/L) were preloaded with one of two nominal Phe concentrations (10 or 100µg/L) and were exposed to the fish for 96h. Our findings showed one or both Phe treatments significantly increased the degree of tissue change (DTC) in the liver while decreased the transcription levels of forkhead box L2 (foxl2) and tryptophan hydroxylase2 (tph2) in the brain of C. gariepinus. Exposure to either levels of virgin MPs increased the DTC in the liver and plasma albumin: globulin ratio while decreased the transcription levels of tph2. Moreover, MPs modulated (interacted with) the impact of Phe on the DTC in the gill, plasma concentrations of cholesterol, high-density lipoprotein (HDL), total protein (TP), albumin, and globulin, and the transcription levels of fushi tarazu-factor 1 (ftz-f1), gonadotropin-releasing hormone (GnRH), 11 β-hydroxysteroid dehydrogenase type 2 (11β-hsd2), and liver glycogen stores. Results of this study highlight the ability of virgin LDPE fragments to cause toxicity and to modulate the adverse impacts of Phe in C. gariepinus. Due to the wide distribution of MPs and other classes of contaminants in aquatic environments, further studies are urgently needed to elucidate the toxicity of virgin or contaminant-loaded MPs on organisms.
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Affiliation(s)
- Ali Karami
- Laboratory of Aquatic Toxicology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Selangor, Malaysia.
| | - Nicholas Romano
- Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Selangor, Malaysia
| | - Tamara Galloway
- Department of Biosciences, University of Exeter, College of Life and Environmental Sciences, Exeter, UK
| | - Hazilawati Hamzah
- Haematology & Clinical Biochemistry Laboratory, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Selangor, Malaysia
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41
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Vignet C, Larcher T, Davail B, Joassard L, Le Menach K, Guionnet T, Lyphout L, Ledevin M, Goubeau M, Budzinski H, Bégout ML, Cousin X. Fish Reproduction Is Disrupted upon Lifelong Exposure to Environmental PAHs Fractions Revealing Different Modes of Action. TOXICS 2016; 4:toxics4040026. [PMID: 29051429 PMCID: PMC5606653 DOI: 10.3390/toxics4040026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 10/17/2016] [Accepted: 10/19/2016] [Indexed: 11/20/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) constitute a large family of organic pollutants emitted in the environment as complex mixtures, the compositions of which depend on origin. Among a wide range of physiological defects, PAHs are suspected to be involved in disruption of reproduction. In an aquatic environment, the trophic route is an important source of chronic exposure to PAHs. Here, we performed trophic exposure of zebrafish to three fractions of different origin, one pyrolytic and two petrogenic. Produced diets contained PAHs at environmental concentrations. Reproductive traits were analyzed at individual, tissue and molecular levels. Reproductive success and cumulative eggs number were disrupted after exposure to all three fractions, albeit to various extents depending on the fraction and concentrations. Histological analyses revealed ovary maturation defects after exposure to all three fractions as well as degeneration after exposure to a pyrolytic fraction. In testis, hypoplasia was observed after exposure to petrogenic fractions. Genes expression analysis in gonads has allowed us to establish common pathways such as endocrine disruption or differentiation/maturation defects. Taken altogether, these results indicate that PAHs can indeed disrupt fish reproduction and that different fractions trigger different pathways resulting in different effects.
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Affiliation(s)
- Caroline Vignet
- Ifremer, Ecotoxicology Laboratory, Place Gaby Coll, F-17137 L'Houmeau, France.
| | - Thibaut Larcher
- INRA UMR703, APEX, Oniris, F-44307 Nantes, France.
- Oniris, École Nationale vétérinaire, Agro-Alimentaire et de L'alimentation Nantes-Atlantique, LUNAM Université, F-44307 Nantes, France.
| | - Blandine Davail
- Department of Science and Technology, University of Bordeaux 1, EPOC, UMR CNRS 5805, F-33405 Talence, France.
| | - Lucette Joassard
- Ifremer, Fisheries Laboratory, Place Gaby Coll, F-17137 L'Houmeau, France.
| | - Karyn Le Menach
- Department of Science and Technology, University of Bordeaux 1, EPOC, UMR CNRS 5805, F-33405 Talence, France.
| | - Tiphaine Guionnet
- Ifremer, Fisheries Laboratory, Place Gaby Coll, F-17137 L'Houmeau, France.
| | - Laura Lyphout
- Ifremer, Ecotoxicology Laboratory, Place Gaby Coll, F-17137 L'Houmeau, France.
- Ifremer, Fisheries Laboratory, Place Gaby Coll, F-17137 L'Houmeau, France.
| | - Mireille Ledevin
- INRA UMR703, APEX, Oniris, F-44307 Nantes, France.
- Oniris, École Nationale vétérinaire, Agro-Alimentaire et de L'alimentation Nantes-Atlantique, LUNAM Université, F-44307 Nantes, France.
| | - Manon Goubeau
- Ifremer, Ecotoxicology Laboratory, Place Gaby Coll, F-17137 L'Houmeau, France.
| | - Hélène Budzinski
- Department of Science and Technology, University of Bordeaux 1, EPOC, UMR CNRS 5805, F-33405 Talence, France.
| | - Marie-Laure Bégout
- Ifremer, Fisheries Laboratory, Place Gaby Coll, F-17137 L'Houmeau, France.
| | - Xavier Cousin
- Ifremer, Ecotoxicology Laboratory, Place Gaby Coll, F-17137 L'Houmeau, France.
- INRA LPGP, Campus de Beaulieu, F-35042 Rennes, France.
- Ifremer, Laboratoire Adaptation et Adaptabilité des Animaux et des Systèmes, UMR MARBEC, Route de Maguelone, F-34250 Palavas les Flots, France.
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42
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Baldwin AK, Corsi SR, De Cicco LA, Lenaker PL, Lutz MA, Sullivan DJ, Richards KD. Organic contaminants in Great Lakes tributaries: Prevalence and potential aquatic toxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 554-555:42-52. [PMID: 26950618 DOI: 10.1016/j.scitotenv.2016.02.137] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 02/18/2016] [Accepted: 02/19/2016] [Indexed: 05/24/2023]
Abstract
Organic compounds used in agriculture, industry, and households make their way into surface waters through runoff, leaking septic-conveyance systems, regulated and unregulated discharges, and combined sewer overflows, among other sources. Concentrations of these organic waste compounds (OWCs) in some Great Lakes tributaries indicate a high potential for adverse impacts on aquatic organisms. During 2010-13, 709 water samples were collected at 57 tributaries, together representing approximately 41% of the total inflow to the lakes. Samples were collected during runoff and low-flow conditions and analyzed for 69 OWCs, including herbicides, insecticides, polycyclic aromatic hydrocarbons, plasticizers, antioxidants, detergent metabolites, fire retardants, non-prescription human drugs, flavors/fragrances, and dyes. Urban-related land cover characteristics were the most important explanatory variables of concentrations of many OWCs. Compared to samples from nonurban watersheds (<15% urban land cover) samples from urban watersheds (>15% urban land cover) had nearly four times the number of detected compounds and four times the total sample concentration, on average. Concentration differences between runoff and low-flow conditions were not observed, but seasonal differences were observed in atrazine, metolachlor, DEET, and HHCB concentrations. Water quality benchmarks for individual OWCs were exceeded at 20 sites, and at 7 sites benchmarks were exceeded by a factor of 10 or more. The compounds with the most frequent water quality benchmark exceedances were the PAHs benzo[a]pyrene, pyrene, fluoranthene, and anthracene, the detergent metabolite 4-nonylphenol, and the herbicide atrazine. Computed estradiol equivalency quotients (EEQs) using only nonsteroidal endocrine-active compounds indicated medium to high risk of estrogenic effects (intersex or vitellogenin induction) at 10 sites. EEQs at 3 sites were comparable to values reported in effluent. This multifaceted study is the largest, most comprehensive assessment of the occurrence and potential effects of OWCs in the Great Lakes Basin to date.
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Affiliation(s)
- Austin K Baldwin
- U.S. Geological Survey, 8505 Research Way, Middleton, WI, 53562, USA.
| | - Steven R Corsi
- U.S. Geological Survey, 8505 Research Way, Middleton, WI, 53562, USA
| | - Laura A De Cicco
- U.S. Geological Survey, 8505 Research Way, Middleton, WI, 53562, USA
| | - Peter L Lenaker
- U.S. Geological Survey, 8505 Research Way, Middleton, WI, 53562, USA
| | - Michelle A Lutz
- U.S. Geological Survey, 8505 Research Way, Middleton, WI, 53562, USA
| | - Daniel J Sullivan
- U.S. Geological Survey, 8505 Research Way, Middleton, WI, 53562, USA
| | - Kevin D Richards
- U.S. Geological Survey, 8505 Research Way, Middleton, WI, 53562, USA
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43
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Chen L, Zhang W, Ye R, Hu C, Wang Q, Seemann F, Au DWT, Zhou B, Giesy JP, Qian PY. Chronic Exposure of Marine Medaka (Oryzias melastigma) to 4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) Reveals Its Mechanism of Action in Endocrine Disruption via the Hypothalamus-Pituitary-Gonadal-Liver (HPGL) Axis. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:4492-4501. [PMID: 27035644 DOI: 10.1021/acs.est.6b01137] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this study, marine medaka (Oryzias melastigma) were chronically exposed for 28 days to environmentally realistic concentrations of 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) (0, 0.76, 2.45, and 9.86 μg/L), the active ingredient in commercial antifouling agent SeaNine 211. Alterations of the hypothalamus-pituitary-gonadal-liver (HPGL) axis were investigated across diverse levels of biological organization to reveal the underlying mechanisms of its endocrine disruptive effects. Gene transcription analysis showed that DCOIT had positive regulatory effects mainly in male HPGL axis with lesser extent in females. The stimulated steroidogenic activities resulted in increased concentrations of steroid hormones, including estradiol (E2), testosterone (T), and 11-KT-testosterone (11-KT), in the plasma of both sexes, leading to an imbalance in hormone homeostasis and increased E2/T ratio. The relatively estrogenic intracellular environment in both sexes induced the hepatic synthesis and increased the liver and plasma content of vitellogenin (VTG) or choriogenin. Furthermore, parental exposure to DCOIT transgenerationally impaired the viability of offspring, as supported by a decrease in hatching and swimming activity. Overall, the present results elucidated the estrogenic mechanisms along HPGL axis for the endocrine disruptive effects of DCOIT. The reproductive impairments of DCOIT at environmentally realistic concentrations highlights the need for more comprehensive investigations of its potential ecological risks.
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Affiliation(s)
- Lianguo Chen
- HKUST Shenzhen Research Institute and Division of Life Science, Hong Kong University of Science and Technology , Clear Water Bay, Hong Kong SAR, China
| | - Weipeng Zhang
- HKUST Shenzhen Research Institute and Division of Life Science, Hong Kong University of Science and Technology , Clear Water Bay, Hong Kong SAR, China
| | | | | | - Qiangwei Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences , Wuhan 430072, China
| | | | | | - Bingsheng Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences , Wuhan 430072, China
| | - John P Giesy
- Toxicology Centre, University of Saskatchewan , 44 Campus Drive, Saskatoon, SK S7N 5B3, Canada
| | - Pei-Yuan Qian
- HKUST Shenzhen Research Institute and Division of Life Science, Hong Kong University of Science and Technology , Clear Water Bay, Hong Kong SAR, China
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44
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Kim BM, Kim J, Choi IY, Raisuddin S, Au DWT, Leung KMY, Wu RSS, Rhee JS, Lee JS. Omics of the marine medaka (Oryzias melastigma) and its relevance to marine environmental research. MARINE ENVIRONMENTAL RESEARCH 2016; 113:141-152. [PMID: 26716363 DOI: 10.1016/j.marenvres.2015.12.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 12/11/2015] [Accepted: 12/12/2015] [Indexed: 06/05/2023]
Abstract
In recent years, the marine medaka (Oryzias melastigma), also known as the Indian medaka or brackish medaka, has been recognized as a model fish species for ecotoxicology and environmental research in the Asian region. O. melastigma has several promising features for research, which include a short generation period (3-4 months), daily spawning, small size (3-4 cm), transparent embryos, sexual dimorphism, and ease of mass culture in the laboratory. There have been extensive transcriptome and genome studies on the marine medaka in the past decade. Such omics data can be useful in understanding the signal transduction pathways of small teleosts in response to environmental stressors. An omics-integrated approach in the study of the marine medaka is important for strengthening its role as a small fish model for marine environmental studies. In this review, we present current omics information about the marine medaka and discuss its potential applications in the study of various molecular pathways that can be targets of marine environmental stressors, such as chemical pollutants. We believe that this review will encourage the use of this small fish as a model species in marine environmental research.
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Affiliation(s)
- Bo-Mi Kim
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Jaebum Kim
- Department of Animal Biotechnology, College of Animal Bioscience & Technology, Konkuk University, Seoul, 05029, South Korea
| | - Ik-Young Choi
- National Instrumentation Center for Environmental Management, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, South Korea
| | - Sheikh Raisuddin
- Department of Medical Elementology & Toxicology, Hamdard University, 110062, New Delhi, India
| | - Doris W T Au
- State Key Laboratory on Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Kenneth M Y Leung
- School of Biological Sciences, University of Hong Kong, Hong Kong, China
| | - Rudolf S S Wu
- School of Biological Sciences, University of Hong Kong, Hong Kong, China
| | - Jae-Sung Rhee
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon, 22012, South Korea.
| | - Jae-Seong Lee
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon, 16419, South Korea.
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45
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Wen J, Pan L. Short-term exposure to benzo[a]pyrene causes oxidative damage and affects haemolymph steroid levels in female crab Portunus trituberculatus. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 208:486-494. [PMID: 26552528 DOI: 10.1016/j.envpol.2015.10.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 10/15/2015] [Accepted: 10/15/2015] [Indexed: 06/05/2023]
Abstract
Concern has increased regarding the adverse effects of polycyclic aromatic hydrocarbons (PAHs) on reproduction. However, limited information is available on the effects of PAHs in crustacean. In order to determine whether benzo[a]pyrene (B[a]P) could cause reproductive toxicity on the swimming crab Portunus trituberculatus, sexually mature female crabs were exposed to environmentally relevant concentrations of B[a]P (0, 0.1, 0.5 and 2.5 μg/L) for 10 days. B[a]P treatments resulted in high accumulation in ovary, and induced oxidative stress in a dose-dependent manner on ovary of crab. Furthermore, the haemolymph estradiol (E2) and testosterone (T) levels were significantly decreased. Histological investigation also revealed the reproductive toxicity caused by B[a]P. The results demonstrated that waterborne exposure to B[a]P caused oxidative damage and disrupted sex steroids in female crab P. trituberculatus, ultimately resulting in histological alternation.
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Affiliation(s)
- Jianmin Wen
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, PR China
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, PR China.
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