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Liang Y, Zhu F, Li J, Wan X, Ge Y, Liang G, Zhou Y. P-phenylenediamine antioxidants and their quinone derivatives: A review of their environmental occurrence, accessibility, potential toxicity, and human exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 948:174449. [PMID: 38969117 DOI: 10.1016/j.scitotenv.2024.174449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 06/06/2024] [Accepted: 07/01/2024] [Indexed: 07/07/2024]
Abstract
Substituted p-phenylenediamines (PPDs), a class of antioxidants, have been widely used to extend the lifespan of rubber products, such as tires and pipes. During use, PPDs will generate their quinone derivatives (PPD-Qs). In recent years, PPDs and PPD-Qs have been detected in the global environment. Among them, N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone (6PPD-Q), the oxidation product of N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD), has been identified as highly toxic to coho salmon, with the lethal concentration of 50 % (LC50) being 95 ng/L, highlighting it as an emerging pollutant of great concern. This review summarizes the physicochemical properties, global environmental distribution, bioaccessibility, potential toxicity, human exposure risk, and green measures of PPDs and PPD-Qs. These chemicals exhibit lipophilicity, bioaccumulation potential, and poor aqueous stability. They have been found in water, air, dust, soil, and sediment worldwide, indicating their significance as emerging pollutants. Notably, current studies have identified electronic waste (e-waste), such as discarded wires and cables, as a non-negligible source of PPDs and PPD-Qs, in addition to tire wear. PPDs and PPD-Qs exhibit strong bioaccumulation in aquatic organisms and mammals, with a tendency for biomagnification within the food web, posing health threats to humans. Available toxicity data indicate that PPDs and PPD-Qs have negative effects on aquatic organisms, mammals, and invertebrates. Acute exposure leads to death and acute damage, and long-term exposure can cause a series of adverse effects, including growth and development toxicity, reproductive toxicity, neurotoxicity, intestinal toxicity, and multi-organ damage. This paper discusses current research gaps and offers recommendations to understand better the occurrence, behavior, toxicity, and environmental exposure risks of PPDs and PPD-Qs.
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Affiliation(s)
- Yuting Liang
- School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Feng Zhu
- Jiangsu Province Center for Disease Control and Prevention, NO. 172 Jiangsu Road, Nanjing, Jiangsu 210009, PR China
| | - Jie Li
- School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Xin Wan
- School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Yiling Ge
- School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Geyu Liang
- School of Public Health, Southeast University, Nanjing 210009, PR China.
| | - Yonglin Zhou
- Jiangsu Province Center for Disease Control and Prevention, NO. 172 Jiangsu Road, Nanjing, Jiangsu 210009, PR China.
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2
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Wu W, Xu Q, Li J, Wang Z, Li G. The spatio-temporal accumulation of 6 PPD-Q in greenbelt soils and its effects on soil microbial communities. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 358:124477. [PMID: 38950845 DOI: 10.1016/j.envpol.2024.124477] [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: 05/15/2024] [Revised: 06/27/2024] [Accepted: 06/29/2024] [Indexed: 07/03/2024]
Abstract
6 PPD-Q (6 PPD-Quinone) is an ozone-induced byproduct derived from the degradation of N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6 PPD), commonly found in road dust resulting from tire wear. However, the extent of 6 PPD-Q pollution in urban soil remains unclear. This study investigates the spatial and temporal accumulation patterns of 6 PPD-Q in greenbelt soils in Ningbo, and explores the correlation between 6 PPD-Q accumulation and soil microbial community composition and functions. Our findings indicate that 6 PPD-Q is present (ranging from 0.85 to 12.58 μg/kg) in soil samples collected from both sides of urban traffic arteries. Soil fungi exhibit higher sensitivity to 6 PPD-Q accumulation compared to bacteria, and associated fungi (Basidiomycota) may be potential biomarkers for environmental 6 PPD-Q contamination. Co-occurrence network analysis reveals that the bacterial microbial network in summer exhibits greater stability and resilience in response to 6 PPD-Q inputs than in winter. However, 6 PPD-Q accumulation disrupts the network structure of fungal communities to some extent, leading to reduced diversity in fungal microbial communities. Long-term accumulation of 6 PPD-Q weakens the nitrogen and phosphorus cycling potential within urban soil, while the enhancement of carbon cycling may further promote 6 PPD-Q degradation in urban soil. Taken together, this study provides new insights into the ecological risks of 6 PPD-Q in urban soils.
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Affiliation(s)
- Wei Wu
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo, 315830, PR China; School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, PR China
| | - Qiao Xu
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo, 315830, PR China.
| | - Jinhu Li
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo, 315830, PR China
| | - Zhen Wang
- School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, PR China
| | - Gang Li
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo, 315830, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
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3
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Ma CS, Li DL, Wang F, Wang JP, He MT. Neurotoxicity from long-term exposure to 6-PPDQ: Recent advances. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 282:116689. [PMID: 39002379 DOI: 10.1016/j.ecoenv.2024.116689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/15/2024]
Abstract
The recent acceleration of industrialization and urbanization has brought significant attention to N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone (6-PPDQ), an emerging environmental pollutant from tire wear, due to its long-term effects on the environment and organisms. Recent studies suggest that 6-PPDQ can disrupt neurotransmitter synthesis and release, impact receptor function, and alter signaling pathways, potentially causing oxidative stress, inflammation, and apoptosis. This review investigates the potential neurotoxic effects of prolonged 6-PPDQ exposure, the mechanisms underlying its cytotoxicity, and the associated health risks. We emphasize the need for future research, including precise exposure assessments, identification of individual differences, and development of risk assessments and intervention strategies. This article provides a comprehensive overview of 6-PPDQ's behavior, impact, and neurotoxicity in the environment, highlighting key areas and challenges for future research.
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Affiliation(s)
- Chang-Sheng Ma
- Department of Diagnostic Pathology, Shandong Second Medical University, Weifang 261041, China
| | - Dong-Lun Li
- Department of Diagnostic Pathology, Shandong Second Medical University, Weifang 261041, China
| | - Fang Wang
- Department of Neurosurgery, Weifang People's Hospital, Weifang 261041, China
| | - Jin-Peng Wang
- Department of Diagnostic Pathology, Shandong Second Medical University, Weifang 261041, China; Department of Neurosurgery, Weifang People's Hospital, Weifang 261041, China.
| | - Mao-Tao He
- Department of Diagnostic Pathology, Shandong Second Medical University, Weifang 261041, China; Department of Pathology, Affiliated Hospital of Shandong Second Medical University, Weifang 261041, China.
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Magni S, Sbarberi R, Dolfini D, Nigro L, Binelli A. Behind conventional (micro)plastics: An ecotoxicological characterization of aqueous suspensions from End-of-Life Tire particles. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 273:107032. [PMID: 39068809 DOI: 10.1016/j.aquatox.2024.107032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 07/12/2024] [Accepted: 07/23/2024] [Indexed: 07/30/2024]
Abstract
Million tons of tires become waste every year, and the so-called End-of-Life Tires (ELTs) are ground into powder (ELT-dp; size < 0.8 mm) and granules (ELT-dg; 0.8 < size < 2.5 mm) for recycling. The aim of this study was to evaluate the sub-lethal effects of three different concentrations (0.1, 1, and 10 mg/L) of aqueous suspensions from ELT-dp and ELT-dg on Danio rerio (zebrafish) larvae exposed from 0 to 120 h post-fertilization (hpf). Chronic effects were assessed through biomarkers, real-time PCR, and proteomics. We observed a significant increase in swimming behavior and heart rate only in specimens exposed to ELT-dp suspensions at 1 and 10 mg/L, respectively. Conversely, the activities of detoxifying enzymes ethoxyresorufin-O-deethylase (EROD) and glutathione-S-transferase (GST) showed significant modulation only in specimens exposed to ELT-dg groups. Although no effects were observed through real-time PCR, proteomics highlighted alterations induced by the three ELT-dp concentrations in over 100 proteins involved in metabolic pathways of aromatic and nitrogen compounds. The results obtained suggest that the toxic mechanism of action (MoA) of ELT suspensions is mainly associated with the induction of effects by released chemicals in water, with a higher toxicity of ELT-dp compared to ELT-dg.
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Affiliation(s)
- Stefano Magni
- Department of Biosciences, University of Milan, Via Celoria 26, 20133 Milan, Italy.
| | - Riccardo Sbarberi
- Department of Biosciences, University of Milan, Via Celoria 26, 20133 Milan, Italy
| | - Diletta Dolfini
- Department of Biosciences, University of Milan, Via Celoria 26, 20133 Milan, Italy
| | - Lara Nigro
- Department of Biosciences, University of Milan, Via Celoria 26, 20133 Milan, Italy
| | - Andrea Binelli
- Department of Biosciences, University of Milan, Via Celoria 26, 20133 Milan, Italy
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Ricarte M, Tagkalidou N, Bellot M, Bedrossiantz J, Prats E, Gomez-Canela C, Garcia-Reyero N, Raldúa D. Short- and Long-Term Neurobehavioral Effects of Developmental Exposure to Valproic Acid in Zebrafish. Int J Mol Sci 2024; 25:7688. [PMID: 39062930 PMCID: PMC11277053 DOI: 10.3390/ijms25147688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 07/08/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by impairments in social interaction and communication, anxiety, hyperactivity, and interest restricted to specific subjects. In addition to the genetic factors, multiple environmental factors have been related to the development of ASD. Animal models can serve as crucial tools for understanding the complexity of ASD. In this study, a chemical model of ASD has been developed in zebrafish by exposing embryos to valproic acid (VPA) from 4 to 48 h post-fertilization, rearing them to the adult stage in fish water. For the first time, an integrative approach combining behavioral analysis and neurotransmitters profile has been used for determining the effects of early-life exposure to VPA both in the larval and adult stages. Larvae from VPA-treated embryos showed hyperactivity and decreased visual and vibrational escape responses, as well as an altered neurotransmitters profile, with increased glutamate and decreased acetylcholine and norepinephrine levels. Adults from VPA-treated embryos exhibited impaired social behavior characterized by larger shoal sizes and a decreased interest for their conspecifics. A neurotransmitter analysis revealed a significant decrease in dopamine and GABA levels in the brain. These results support the potential predictive validity of this model for ASD research.
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Affiliation(s)
- Marina Ricarte
- Institute for Environmental Assessment and Water Research (IDAEA-CSIC), 08034 Barcelona, Spain; (M.R.); (N.T.); (J.B.)
- Department of Analytical and Applied Chemistry, School of Engineering, Institut Químic de Sarrià, Universitat Ramon Llull, 08017 Barcelona, Spain; (M.B.); (C.G.-C.)
| | - Niki Tagkalidou
- Institute for Environmental Assessment and Water Research (IDAEA-CSIC), 08034 Barcelona, Spain; (M.R.); (N.T.); (J.B.)
| | - Marina Bellot
- Department of Analytical and Applied Chemistry, School of Engineering, Institut Químic de Sarrià, Universitat Ramon Llull, 08017 Barcelona, Spain; (M.B.); (C.G.-C.)
| | - Juliette Bedrossiantz
- Institute for Environmental Assessment and Water Research (IDAEA-CSIC), 08034 Barcelona, Spain; (M.R.); (N.T.); (J.B.)
| | - Eva Prats
- Research and Development Center (CID-CSIC), 08034 Barcelona, Spain;
| | - Cristian Gomez-Canela
- Department of Analytical and Applied Chemistry, School of Engineering, Institut Químic de Sarrià, Universitat Ramon Llull, 08017 Barcelona, Spain; (M.B.); (C.G.-C.)
| | - Natalia Garcia-Reyero
- Institute for Genomics, Biocomputing & Biotechnology (IGBB), Mississippi State University, Starkville, MS 39762, USA;
| | - Demetrio Raldúa
- Institute for Environmental Assessment and Water Research (IDAEA-CSIC), 08034 Barcelona, Spain; (M.R.); (N.T.); (J.B.)
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Hua X, Liang G, Chao J, Wang D. Exposure to 6-PPD quinone causes damage on mitochondrial complex I/II associated with lifespan reduction in Caenorhabditis elegans. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134598. [PMID: 38743975 DOI: 10.1016/j.jhazmat.2024.134598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 04/25/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024]
Abstract
N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone (6-PPDQ) is an emerging pollutant transformed from 6-PPD. However, the effect of 6-PPDQ exposure on mitochondrion and underlying mechanism remains largely unclear. Using Caenorhabditis elegans as animal model, exposed to 6-PPDQ at 0.1-10 μg/L was performed form L1 larvae to adult day-1. Exposure to 6-PPDQ (1 and 10 μg/L) could increase oxygen consumption rate and decease adenosine 5'-triphosphate (ATP) content, suggesting induction of mitochondrial dysfunction. Activities of NADH dehydrogenase (complex I) and succinate dehydrogenase (complex II) were inhibited, accompanied by a decrease in expressions of gas-1, nuo-1, and mev-1. RNAi of gas-1 and mev-1 enhanced mitochondrial dysfunction and reduced lifespan of 6-PPDQ exposed nematodes. GAS-1 and MEV-1 functioned in parallel to regulate 6-PPDQ toxicity to reduce the lifespan. Insulin peptides and the insulin signaling pathway acted downstream of GAS-1 and MEV-1 to control the 6-PPDQ toxicity on longevity. Moreover, RNAi of sod-2 and sod-3, targeted genes of daf-16, caused susceptibility to 6-PPDQ toxicity in reducing lifespan and in causing reactive oxygen species (ROS) production. Therefore, 6-PPDQ at environmentally relevant concentrations (ERCs) potentially caused mitochondrial dysfunction by affecting mitochondrial complexes I and II, which was associated with lifespan reduction by affecting insulin signaling in organisms.
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Affiliation(s)
- Xin Hua
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Geyu Liang
- School of Public Health, Southeast University, Nanjing 210009, China
| | - Jie Chao
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Medical School, Southeast University, Nanjing 210009, China; Shenzhen Ruipuxun Academy for Stem Cell & Regenerative Medicine, Shenzhen, China.
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Kazmi SSUH, Xu Q, Tayyab M, Pastorino P, Barcelò D, Yaseen ZM, Khan ZH, Li G. Navigating the environmental dynamics, toxicity to aquatic organisms and human associated risks of an emerging tire wear contaminant 6PPD quinone. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 356:124313. [PMID: 38838808 DOI: 10.1016/j.envpol.2024.124313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/07/2024]
Abstract
N-1,3-Dimethylbutyl-N'-phenyl-p-quinone diamine (6PPDQ) is a derivative of 6PPD, a synthetic antioxidant used in tire manufacturing to control the degradation caused by oxidation and heat aging. Its discovery in 2020 has raised important environmental concern, particularly regarding its association with acute mortality in coho salmon, prompting surge in research on its occurrence, fate, and transport in aquatic ecosystems. Despite this attention, there remain notable gaps in grasping the knowledge, demanding an in depth overview. Thus, this review consolidates recent studies to offer a thorough investigation of 6PPDQ's environmental dynamics, pathways into aquatic ecosystems, toxicity to aquatic organisms, and human health implications. Various aquatic species exhibit differential susceptibility to 6PPDQ toxicity, manifesting in acute mortalities, disruption of metabolic pathways, oxidative stress, behavioral responses, and developmental abnormalities. Whereas, understanding the species-specific responses, molecular mechanisms, and broader ecological implications requires further investigation across disciplines such as ecotoxicology, molecular biology, and environmental chemistry. Integration of findings emphasizes the complexity of 6PPDQ toxicity and its potential risks to human health. However, urgent priorities should be given to the measures like long-term monitoring studies to evaluate the chronic effects on aquatic ecosystems and the establishment of standardized toxicity testing protocols to ensure the result comparability and reproducibility. This review serves as a vital resource for researchers, policymakers, and environmental professionals seeking appraisals into the impacts of 6PPDQ contamination on aquatic ecosystems and human health.
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Affiliation(s)
- Syed Shabi Ul Hassan Kazmi
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, Peoples R China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, Peoples R China
| | - Qiao Xu
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, Peoples R China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, Peoples R China
| | - Muhammad Tayyab
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, Peoples R China
| | - Paolo Pastorino
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, 10154 Torino, Italy
| | - Damià Barcelò
- Chemistry and Physics Department, University of Almeria, 04120 Almería, Spain
| | - Zaher Mundher Yaseen
- Civil and Environmental Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia; Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Zulqarnain Haider Khan
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, Peoples R China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, Peoples R China
| | - Gang Li
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, Peoples R China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, Peoples R China.
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Hernández Díaz M, Galar Martínez M, García Medina S, Cortés López A, Ruiz Lara K, Cano Viveros S, García Medina AL, Pérez-Pastén Borja R, Rosales Pérez KE, Gómez Oliván LM, Raldúa D, Bedrossiantz J. Polluted water from a storage dam (Villa Victoria, méxico) induces oxidative damage, AChE activity, embryotoxicity, and behavioral changes in Cyprinus carpio larvae. ENVIRONMENTAL RESEARCH 2024; 258:119282. [PMID: 38823611 DOI: 10.1016/j.envres.2024.119282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/23/2024] [Accepted: 05/29/2024] [Indexed: 06/03/2024]
Abstract
The Villa Victoria dam is one of the most important storage reservoirs in Mexico since it distributes water to more than 20 million inhabitants in the Metropolitan Zone of Mexico City. In this dam, the common carp (Cyprinus carpio) is an important food resource for the inhabitants, so the aim of this work was to evaluate the oxidative damage (lipoperoxidation, oxidized proteins, antioxidant enzymes activity and gene expression), AChE, embryotoxicity and behavioral changes in C. carpio embryos and larvae exposed to water from Villa Victoria dam for 24, 48, 72 and 96 h. The embryotoxicity was evaluated trough the General Morphology Score (GMS) and the teratogenic index. Behavioral changes in basal locomotor activity and thigmotaxis were evaluated in a DanioVision, Noldus ™. An increase in lipid and protein oxidation as well as modification of CAT, SOD and GPx enzymatic activity was observed during the exposure times. The GMS indicated a low development in the embryos, the teratogenic index was less than 1, however teratogenic effects as yolk edema, fin malformation, head malformation and scoliosis were observed. In parallel, an increase in AChE activity and gene expression was observed reflecting changes in distance traveled of the basal locomotor activity and thigmotaxis at the sampling points. In conclusion, pollutants in water from Villa Victoria dam caused oxidative damage, changes in SOD, CAT, GPx and AChE activity as well as embryotoxicity and modifications in the behavior of C. carpio larvae. This study demonstrates the need to implement restoration programs for this reservoir since, contamination in the Villa Victoria dam could eventually endanger aquatic life and human health.
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Affiliation(s)
- Misael Hernández Díaz
- Laboratory of Aquatic Toxicology, Department of Pharmacy, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Av. Wilfrido Massieu, Delegación Gustavo A. Madero, Ciudad de México 07738, Mexico.
| | - Marcela Galar Martínez
- Laboratory of Aquatic Toxicology, Department of Pharmacy, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Av. Wilfrido Massieu, Delegación Gustavo A. Madero, Ciudad de México 07738, Mexico.
| | - Sandra García Medina
- Laboratory of Aquatic Toxicology, Department of Pharmacy, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Av. Wilfrido Massieu, Delegación Gustavo A. Madero, Ciudad de México 07738, Mexico.
| | - Alejandra Cortés López
- Laboratory of Aquatic Toxicology, Department of Pharmacy, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Av. Wilfrido Massieu, Delegación Gustavo A. Madero, Ciudad de México 07738, Mexico.
| | - Karina Ruiz Lara
- Laboratory of Aquatic Toxicology, Department of Pharmacy, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Av. Wilfrido Massieu, Delegación Gustavo A. Madero, Ciudad de México 07738, Mexico.
| | - Selene Cano Viveros
- Laboratory of Aquatic Toxicology, Department of Pharmacy, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Av. Wilfrido Massieu, Delegación Gustavo A. Madero, Ciudad de México 07738, Mexico.
| | - Alba Lucero García Medina
- Laboratory of Aquatic Toxicology, Department of Pharmacy, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Av. Wilfrido Massieu, Delegación Gustavo A. Madero, Ciudad de México 07738, Mexico.
| | - Ricardo Pérez-Pastén Borja
- Laboratory of Molecular Toxicology, Department of Pharmacy, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Av. Wilfrido Massieu, Delegación Gustavo A. Madero, Ciudad de México 07738.
| | - Karina Elisa Rosales Pérez
- Laboratory of Environmental Toxicology, Faculty of Chemistry, Universidad Autónoma Del Estado de México, Intersección de Paseo Colón y Paseo Tollocan, Colonia Residencial Colón, 50120 Toluca, Estado de México, Mexico.
| | - Leobardo Manuel Gómez Oliván
- Laboratory of Environmental Toxicology, Faculty of Chemistry, Universidad Autónoma Del Estado de México, Intersección de Paseo Colón y Paseo Tollocan, Colonia Residencial Colón, 50120 Toluca, Estado de México, Mexico.
| | - Demetrio Raldúa
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona, 18, 08034 Barcelona, España, Mexico.
| | - Juliette Bedrossiantz
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona, 18, 08034 Barcelona, España, Mexico.
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9
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Li Y, Zeng J, Liang Y, Zhao Y, Zhang S, Chen Z, Zhang J, Shen X, Wang J, Zhang Y, Sun Y. A Review of N-(1,3-Dimethylbutyl)- N'-phenyl- p-Phenylenediamine (6PPD) and Its Derivative 6PPD-Quinone in the Environment. TOXICS 2024; 12:394. [PMID: 38922074 PMCID: PMC11209267 DOI: 10.3390/toxics12060394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/15/2024] [Accepted: 05/24/2024] [Indexed: 06/27/2024]
Abstract
As an antioxidant and antiozonant, N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) is predominantly used in the rubber industry to prevent degradation. However, 6PPD can be ozonated to generate a highly toxic transformation product called N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone (6PPD-quinone), which is toxic to aquatic and terrestrial organisms. Thus, 6PPD and 6PPD-quinone, two emerging contaminants, have attracted extensive attention recently. This review discussed the levels and distribution of 6PPD and 6PPD-quinone in the environment and investigated their toxic effects on a series of organisms. 6PPD and 6PPD-quinone have been widely found in air, water, and dust, while data on soil, sediment, and biota are scarce. 6PPD-quinone can cause teratogenic, developmental, reproductive, neuronal, and genetic toxicity for organisms, at environmentally relevant concentrations. Future research should pay more attention to the bioaccumulation, biomagnification, transformation, and toxic mechanisms of 6PPD and 6PPD-quinone.
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Affiliation(s)
- Yi Li
- Eco-Environmental Monitoring and Research Center, Pearl River Valley and South China Sea Ecology and Environment Administration, Ministry of Ecology and Environment, Guangzhou 510611, China; (Y.L.); (Y.L.); (Y.Z.); (Y.Z.)
| | - Jingjing Zeng
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, School of Environment, South China Normal University, Guangzhou 510006, China; (J.Z.); (S.Z.); (Z.C.); (J.Z.); (X.S.); (J.W.)
- Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongjin Liang
- Eco-Environmental Monitoring and Research Center, Pearl River Valley and South China Sea Ecology and Environment Administration, Ministry of Ecology and Environment, Guangzhou 510611, China; (Y.L.); (Y.L.); (Y.Z.); (Y.Z.)
| | - Yanlong Zhao
- Eco-Environmental Monitoring and Research Center, Pearl River Valley and South China Sea Ecology and Environment Administration, Ministry of Ecology and Environment, Guangzhou 510611, China; (Y.L.); (Y.L.); (Y.Z.); (Y.Z.)
| | - Shujun Zhang
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, School of Environment, South China Normal University, Guangzhou 510006, China; (J.Z.); (S.Z.); (Z.C.); (J.Z.); (X.S.); (J.W.)
| | - Zhongyan Chen
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, School of Environment, South China Normal University, Guangzhou 510006, China; (J.Z.); (S.Z.); (Z.C.); (J.Z.); (X.S.); (J.W.)
| | - Jiawen Zhang
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, School of Environment, South China Normal University, Guangzhou 510006, China; (J.Z.); (S.Z.); (Z.C.); (J.Z.); (X.S.); (J.W.)
| | - Xingze Shen
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, School of Environment, South China Normal University, Guangzhou 510006, China; (J.Z.); (S.Z.); (Z.C.); (J.Z.); (X.S.); (J.W.)
| | - Jiabin Wang
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, School of Environment, South China Normal University, Guangzhou 510006, China; (J.Z.); (S.Z.); (Z.C.); (J.Z.); (X.S.); (J.W.)
| | - Ying Zhang
- Eco-Environmental Monitoring and Research Center, Pearl River Valley and South China Sea Ecology and Environment Administration, Ministry of Ecology and Environment, Guangzhou 510611, China; (Y.L.); (Y.L.); (Y.Z.); (Y.Z.)
| | - Yuxin Sun
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, School of Environment, South China Normal University, Guangzhou 510006, China; (J.Z.); (S.Z.); (Z.C.); (J.Z.); (X.S.); (J.W.)
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10
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Qi Y, Qiu A, Wei X, Huang Y, Huang Q, Huang W. Effects of 6PPD-Quinone on Human Liver Cell Lines as Revealed with Cell Viability Assay and Metabolomics Analysis. TOXICS 2024; 12:389. [PMID: 38922069 PMCID: PMC11209231 DOI: 10.3390/toxics12060389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 05/16/2024] [Accepted: 05/24/2024] [Indexed: 06/27/2024]
Abstract
N-(1,3-Dimethyl butyl)-N'-phenyl-phenylenediamine-quinone (6PPD-Q) is a derivative of the widely used rubber tire antioxidant 6PPD, which was first found to be acutely toxic to coho salmon. Subsequent studies showed that 6PPD-Q had species-specific acute toxicity in fishes and potential hepatotoxicity in mice. In addition, 6PPD-Q has been reported in human urine, demonstrating the potential widespread exposure of humans to this chemical. However, whether 6PPD-Q poses a higher risk to humans than its parent compound, 6PPD, and could cause adverse effects in humans is still unclear. In this study, we utilized two human liver cell models (the human proto-hepatocyte model L02 and the human hepatocellular carcinoma cell line HepG2) to investigate the potentially differential effects of these two chemicals. Cell viability curve analysis showed that 6PPD-Q had lower IC50 values than 6PPD for both liver cell lines, suggesting higher toxicity of 6PPD-Q to human liver cells than 6PPD. In addition, L02 cells are more sensitive to 6PPD-Q exposure, which might be derived from its weaker metabolic transformation of 6PPD-Q, since significantly lower levels of phase I and phase II metabolites were detected in 6PPD-Q-exposed L02 cell culture medium. Furthermore, pathway analysis showed that 6PPD-Q exposure induced changes in phenylalanine, tyrosine, and tryptophan biosynthesis and tyrosine metabolism pathways in L02 cells, which might be the mechanism underlying its liver cell toxicity. Gene expression analysis revealed that exposure to 6PPD-Q induced excessive ROS production in L02 cells. Our results further supported the higher risk of 6PPD-Q than 6PPD and provided insights for understanding the effects of 6PPD-Q on human health.
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Affiliation(s)
| | | | | | | | | | - Wei Huang
- Guangdong Key Laboratory of Environmental Pollution and Health, College of Environment and Climate, Jinan University, Guangzhou 510632, China
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11
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Tagkalidou N, Multisanti CR, Bleda MJ, Bedrossiantz J, Prats E, Faggio C, Barata C, Raldúa D. Analyzing the Effects of Age, Time of Day, and Experiment on the Basal Locomotor Activity and Light-Off Visual Motor Response Assays in Zebrafish Larvae. TOXICS 2024; 12:349. [PMID: 38787128 PMCID: PMC11125988 DOI: 10.3390/toxics12050349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/29/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024]
Abstract
The recent availability of commercial platforms for behavioral analyses in zebrafish larvae based on video-tracking technologies has exponentially increased the number of studies analyzing different behaviors in this model organism to assess neurotoxicity. Among the most commonly used assays in zebrafish larvae are basal locomotor activity (BLA) and visual motor responses (VMRs). However, the effect of different intrinsic and extrinsic factors that can significantly alter the outcome of these assays is still not well understood. In this work, we have analyzed the influence of age (5-8 days post-fertilization), time of day (8:00, 10:00, 12:00, 14:00; 16:00, 18:00, and 20:00 h), and experiment (three experiments performed at different days) on BLA and VMR results (4004 analyses for each behavior) in 143 larvae. The results from both behaviors were adjusted to a random-effects linear regression model using generalized least squares (GLSs), including in the model the effect of the three variables, the second-way interactions between them, and the three-way interaction. The results presented in this manuscript show a specific effect of all three intrinsic factors and their interactions on both behaviors, supporting the view that the most stable time period for performing these behavioral assays is from 10:00 am to 04:00 pm, with some differences depending on the age of the larva and the behavioral test.
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Affiliation(s)
- Niki Tagkalidou
- Institute for Environmental Assessment and Water Research (IDAEA-CSIC), 08034 Barcelona, Spain; (N.T.); (J.B.); (C.B.)
| | - Cristiana Roberta Multisanti
- Department of Veterinary Sciences, University of Messina, Viale Giovanni Palatucci snc, 98168 Messina, Italy;
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 31, 98166 Messina, Italy;
| | - Maria Jose Bleda
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain;
| | - Juliette Bedrossiantz
- Institute for Environmental Assessment and Water Research (IDAEA-CSIC), 08034 Barcelona, Spain; (N.T.); (J.B.); (C.B.)
| | - Eva Prats
- Research and Development Center (CID-CSIC), 08034 Barcelona, Spain;
| | - Caterina Faggio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d’Alcontres, 31, 98166 Messina, Italy;
- Department of Eco-Sustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, 80122 Naples, Italy
| | - Carlos Barata
- Institute for Environmental Assessment and Water Research (IDAEA-CSIC), 08034 Barcelona, Spain; (N.T.); (J.B.); (C.B.)
| | - Demetrio Raldúa
- Institute for Environmental Assessment and Water Research (IDAEA-CSIC), 08034 Barcelona, Spain; (N.T.); (J.B.); (C.B.)
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12
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Varshney S, O'Connor OL, Gora AH, Rehman S, Kiron V, Siriyappagouder P, Dahle D, Kögel T, Ørnsrud R, Olsvik PA. Mixture toxicity of 6PPD-quinone and polystyrene nanoplastics in zebrafish. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 348:123835. [PMID: 38521395 DOI: 10.1016/j.envpol.2024.123835] [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: 12/29/2023] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 03/25/2024]
Abstract
Plastic pollution, including micro- and nanoplastics, is a growing concern. Tyre-wear particles (TWPs) are the second largest source of microplastics in the ocean following abrasion of synthetic fibres. In addition to the particles themselves, TWPs contain many harmful chemicals, including 6PPD. This chemical reacts with atmospheric ozone and forms the toxic compound 6PPD-quinone (6PPDq), which poses a danger to aquatic life. There is a knowledge gap in understanding risks associated with the combined toxicity of nanoplastics (NPs) and 6PPDq. The present study aimed to investigate the toxicity of NPs and 6PPDq on adult zebrafish using phenotypic (behaviour, histology) and transcriptomic endpoints. Zebrafish were exposed to four treatments: control (contaminant-free), 50 μg/L 6PPDq, 3 mg/L polystyrene (PS)-NPs, and a combination of 50 μg/L 6PPDq and 3 mg/L PS-NPs. We did not observe locomotory dysregulation in zebrafish exposed to NPs. However, we found significant hyperlocomotion in zebrafish exposed to 6PPDq and this effect was even more substantial after co-exposure with PS-NPs. This study explores the molecular mechanisms behind these effects, identifying genes associated with neurotransmitters and fatty acid metabolism that were dysregulated by the co-exposure. Transcriptomic analysis further showed that both 6PPDq and PS-NPs impacted cellular processes associated with sterol biosynthesis, cholesterol metabolism, and muscle tissue development. The effects on these mechanisms were stronger in co-exposed zebrafish, indicating a heightened risk to cellular integrity and mitochondrial dysfunction. These results highlight the significance of mixture toxicity when studying the effects of NPs and associated chemicals like 6PPDq.
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Affiliation(s)
- Shubham Varshney
- Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
| | - Olivia L O'Connor
- Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
| | | | - Saima Rehman
- Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
| | - Viswanath Kiron
- Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
| | | | - Dalia Dahle
- Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
| | - Tanja Kögel
- Institute of Marine Research, Bergen, Norway
| | | | - Pål A Olsvik
- Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway; Institute of Marine Research, Bergen, Norway.
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13
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Han G, Huang T, Liu X, Liu R. Bacteriophage EPP-1, a potential antibiotic alternative for controlling edwardsiellosis caused by Edwardsiella piscicida while mitigating drug-resistant gene dissemination. Sci Rep 2024; 14:9399. [PMID: 38658654 PMCID: PMC11043334 DOI: 10.1038/s41598-024-60214-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 04/19/2024] [Indexed: 04/26/2024] Open
Abstract
Edwardsiella piscicida causes significant economic losses to the aquaculture industry worldwide. Phage-based biocontrol methods are experiencing a renaissance because of the spread of drug-resistant genes and bacteria resulting from the heavy use of antibiotics. Here, we showed that the novel Edwardsiella phage EPP-1 could achieve comparable efficacy to florfenicol using a zebrafish model of Edwardsiella piscicida infection and could reduce the content of the floR resistance gene in zebrafish excreta. Specifically, phage EPP-1 inhibited bacterial growth in vitro and significantly improved the zebrafish survival rate in vivo (P = 0.0035), achieving an efficacy comparable to that of florfenicol (P = 0.2304). Notably, integrating the results of 16S rRNA sequencing, metagenomic sequencing, and qPCR, although the effects of phage EPP-1 converged with those of florfenicol in terms of the community composition and potential function of the zebrafish gut microbiota, it reduced the floR gene content in zebrafish excreta and aquaculture water. Overall, our study highlights the feasibility and safety of phage therapy for edwardsiellosis control, which has profound implications for the development of antibiotic alternatives to address the antibiotic crisis.
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Affiliation(s)
- Ganghua Han
- College of Resources and Environment, University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing, 100049, People's Republic of China
| | - Ting Huang
- College of Resources and Environment, University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing, 100049, People's Republic of China
| | - Xinchun Liu
- College of Resources and Environment, University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing, 100049, People's Republic of China
| | - Ruyin Liu
- College of Resources and Environment, University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing, 100049, People's Republic of China.
- Yanshan Earth Critical Zone National Research Station, University of Chinese Academy of Sciences, Beijing, People's Republic of China.
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14
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Fang J, Wang X, Cao G, Wang F, Ru Y, Wang B, Zhang Y, Zhang D, Yan J, Xu J, Ji J, Ji F, Zhou Y, Guo L, Li M, Liu W, Cai X, Cai Z. 6PPD-quinone exposure induces neuronal mitochondrial dysfunction to exacerbate Lewy neurites formation induced by α-synuclein preformed fibrils seeding. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133312. [PMID: 38147746 DOI: 10.1016/j.jhazmat.2023.133312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/10/2023] [Accepted: 12/16/2023] [Indexed: 12/28/2023]
Abstract
The emerging toxicant N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone (6PPD-Q) is of wide concern due to its ubiquitous occurrence and high toxicity. Despite regular human exposure, limited evidence exists about its presence in the body and potential health risks. Herein, we analyzed cerebrospinal fluid (CSF) samples from Parkinson's disease (PD) patients and controls. The CSF levels of 6PPD-Q were twice as high in PD patients compared to controls. Immunostaining assays performed with primary dopaminergic neurons confirm that 6PPD-Q at environmentally relevant concentrations can exacerbate the formation of Lewy neurites induced by α-synuclein preformed fibrils (α-syn PFF). Assessment of cellular respiration reveals a considerable decrease in neuronal spare respiratory and ATP-linked respiration, potentially due to changes in mitochondrial membrane potential. Moreover, 6PPD-Q-induced mitochondrial impairment correlates with an upsurge in mitochondrial reactive oxygen species (mROS), and Mito-TEMPO-driven scavenging of mROS can lessen the amount of pathologic phospho-serine 129 α-synuclein. Untargeted metabolomics provides supporting evidence for the connection between 6PPD-Q exposure and changes in neuronal metabolite profiles. In-depth targeted metabolomics further unveils an overall reduction in glycolysis metabolite pool and fluctuations in the quantity of TCA cycle intermediates. Given its potentially harmful attributes, the presence of 6PPD-Q in human brain could potentially be a risk factor for PD.
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Affiliation(s)
- Jiacheng Fang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, the Hong Kong Special Administrative Region of China
| | - Xiaoxiao Wang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, the Hong Kong Special Administrative Region of China
| | - Guodong Cao
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, the Hong Kong Special Administrative Region of China
| | - Fuyue Wang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, the Hong Kong Special Administrative Region of China
| | - Yi Ru
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, the Hong Kong Special Administrative Region of China
| | - Bolun Wang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, the Hong Kong Special Administrative Region of China
| | - Yanhao Zhang
- School of Ecology and Environment, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Doudou Zhang
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Futian District, Shenzhen, Guangdong, PR China
| | - Jie Yan
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Futian District, Shenzhen, Guangdong, PR China
| | - Ji Xu
- The Central Laboratory, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, PR China
| | - Jing Ji
- The Central Laboratory, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, PR China
| | - Fenfen Ji
- Institute of Digestive Disease, Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, the Hong Kong Special Administrative Region of China
| | - Yingyan Zhou
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, the Hong Kong Special Administrative Region of China
| | - Lei Guo
- Interdisciplinary Institute of Medical Engineering, Fuzhou University, Fuzhou, Fujian, PR China
| | - Min Li
- Mr. and Mrs. Ko Chi Ming Centre for Parkinson's Disease Research, School of Chinese Medicine, Hong Kong Baptist University, the Hong Kong Special Administrative Region of China
| | - Wenlan Liu
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Futian District, Shenzhen, Guangdong, PR China
| | - Xiaodong Cai
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Futian District, Shenzhen, Guangdong, PR China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, the Hong Kong Special Administrative Region of China.
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15
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Bohara K, Timilsina A, Adhikari K, Kafle A, Basyal S, Joshi P, Yadav AK. A mini review on 6PPD quinone: A new threat to aquaculture and fisheries. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122828. [PMID: 37907191 DOI: 10.1016/j.envpol.2023.122828] [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: 07/24/2023] [Revised: 10/19/2023] [Accepted: 10/28/2023] [Indexed: 11/02/2023]
Abstract
Numerous toxic substances are directly and indirectly discharged by humans into water bodies, causing distress to the organisms living on it. 6PPD, an amino antioxidant from tires reacts with ozone to form 6PPD-Q, which has garnered global attention due to its lethal nature to various organisms. This review aims to provide an understanding of the sources, transformation, and fate of 6PPD-Q in water and the current knowledge on its effects on aquatic organisms. Furthermore, we discuss research gaps pertaining to the mechanisms by which 6PPD-Q acts within fish bodies. Previous studies have demonstrated the ubiquitous presence of 6PPD-Q in the environment, including air, water, and soil. Moreover, this compound has shown high lethality to certain fish species while not affecting others. Toxicological studies have revealed its impact on the nervous system, intestinal barrier function, cardiac function, equilibrium loss, and oxidative stress in various fish species. Additionally, exposure to 6PPD-Q has led to organ injury, lipid accumulation, and cytokine production in C. elegans and mice. Despite studies elucidating the lethal dose and effects of 6PPD-Q in fish species, the underlying mechanisms behind these symptoms remain unclear. Future studies should prioritize investigating the mechanisms underlying the lethality of 6PPD-Q in fish species to gain a better understanding of its potential effects on different organisms.
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Affiliation(s)
- Kailash Bohara
- Department of Aquaculture and Fisheries, University of Arkansas at Pine Bluff, AR, 71601, USA.
| | - Anil Timilsina
- Department of Civil and Environmental Engineering, University of Nevada, Reno, NV, 89557, USA
| | - Kaushik Adhikari
- Department of Crop and Soil Science, Washington State University, Pullman, WA, 99163, USA
| | - Arjun Kafle
- Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, 79409, USA
| | - Sudarshan Basyal
- Department of Agriculture, University of Arkansas at Pine Bluff, AR, 71601, USA
| | - Pabitra Joshi
- Department of Plant Science, University of Idaho, Moscow, ID, 83843, USA
| | - Amit K Yadav
- Department of Continuing Education, College of Menominee Nation, Keshena, WI, 54135, USA
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16
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Weis JS, Alava JJ. (Micro)Plastics Are Toxic Pollutants. TOXICS 2023; 11:935. [PMID: 37999586 PMCID: PMC10675727 DOI: 10.3390/toxics11110935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/12/2023] [Accepted: 11/15/2023] [Indexed: 11/25/2023]
Abstract
Plastics, including microplastics, have generally been regarded as harmful to organisms because of their physical characteristics. There has recently been a call to understand and regard them as persistent, bioaccumulative, and toxic. This review elaborates on the reasons that microplastics in particular should be considered as "toxic pollutants". This view is supported by research demonstrating that they contain toxic chemicals within their structure and also adsorb additional chemicals, including polychlorinated biphenyls (PCBs), pesticides, metals, and polycyclic aromatic hydrocarbons (PAHs), from the environment. Furthermore, these chemicals can be released into tissues of animals that consume microplastics and can be responsible for the harmful effects observed on biological processes such as development, physiology, gene expression, and behavior. Leachates, weathering, and biofilm play important roles in the interactions between microplastics and biota. Global policy efforts by the United Nations Environmental Assembly via the international legally binding treaty to address global plastic pollution should consider the designation of harmful plastics (e.g., microplastics) with associated hazardous chemicals as toxic pollutants.
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Affiliation(s)
- Judith S. Weis
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Juan José Alava
- Ocean Pollution Research Unit & Nippon Foundation-Ocean Litter Project, Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, BC V6T1Z4, Canada;
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