1
|
Abou Diwan M, Djekkoun N, Boucau MC, Corona A, Dehouck L, Biendo M, Gosselet F, Bach V, Candela P, Khorsi-Cauet H. Maternal exposure to pesticides induces perturbations in the gut microbiota and blood-brain barrier of dams and the progeny, prevented by a prebiotic. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34969-1. [PMID: 39325129 DOI: 10.1007/s11356-024-34969-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Accepted: 09/09/2024] [Indexed: 09/27/2024]
Abstract
Exposure to pesticide residues during the first 1000 days of life can disrupt body homeostasis and contribute to chronic metabolic diseases. Perinatal chlorpyrifos (CPF) exposure alters gut microbiota (GM) balance, potentially affecting offspring's health. Given the GM influence on brain function, the primary aim is to determine if pesticide-induced dysbiosis (microbial imbalance) affects indirectly other organs, such as the blood-brain barrier (BBB). The secondary objective is to evaluate the prebiotics protective effects, particularly inulin in promoting microbial balance (symbiosis), in both mothers and offspring. A total of 15 or more female rats were divided in 4 groups: control, oral CPF-exposed (1 mg/kg/day), exposed to inulin (10 g/L), and co-exposed to CPF and inulin from pre-gestation until weaning of pups. Samples from intestines, spleen, liver, and brain microvessels underwent microbiological and biomolecular analyses. Bacterial culture assessed GM composition of living bacteria and their translocation to non-intestinal organs. RT qPCR and Western blotting detected gene expression and protein levels of tight junction markers in brain microvessels. CPF exposure caused gut dysbiosis in offspring, with decreased Lactobacillus and Bifidobacterium and increased Escherichia coli (p < 0.01) leading to bacterial translocation to the spleen and liver. CPF also decreased tight junction's gene expression levels (50 to 60% decrease of CLDN3, p < 0.05). In contrast, inulin partially mitigated these adverse effects and restored gene expression to control levels. Our findings demonstrate a causal link between GM alterations and BBB integrity disruptions. The protective effects of inulin suggest potential therapeutic strategies to counteract pesticide-induced dysbiosis.
Collapse
Affiliation(s)
- Maria Abou Diwan
- PERITOX-Périnatalité et Risques Toxiques-UMR_I 01 UPJV/INERIS, Centre Universitaire de Recherche en Santé, CURS-UPJV, University of Picardie Jules Verne, CEDEX 1, 80054, Amiens, France
- Laboratoire de La Barrière Hémato-Encéphalique (LBHE), UR 2465, University of Artois, 62300, Lens, France
| | - Narimane Djekkoun
- PERITOX-Périnatalité et Risques Toxiques-UMR_I 01 UPJV/INERIS, Centre Universitaire de Recherche en Santé, CURS-UPJV, University of Picardie Jules Verne, CEDEX 1, 80054, Amiens, France
| | - Marie-Christine Boucau
- Laboratoire de La Barrière Hémato-Encéphalique (LBHE), UR 2465, University of Artois, 62300, Lens, France
| | - Aurélie Corona
- PERITOX-Périnatalité et Risques Toxiques-UMR_I 01 UPJV/INERIS, Centre Universitaire de Recherche en Santé, CURS-UPJV, University of Picardie Jules Verne, CEDEX 1, 80054, Amiens, France
| | - Lucie Dehouck
- Laboratoire de La Barrière Hémato-Encéphalique (LBHE), UR 2465, University of Artois, 62300, Lens, France
| | - Maurice Biendo
- PERITOX-Périnatalité et Risques Toxiques-UMR_I 01 UPJV/INERIS, Centre Universitaire de Recherche en Santé, CURS-UPJV, University of Picardie Jules Verne, CEDEX 1, 80054, Amiens, France
| | - Fabien Gosselet
- Laboratoire de La Barrière Hémato-Encéphalique (LBHE), UR 2465, University of Artois, 62300, Lens, France
| | - Véronique Bach
- PERITOX-Périnatalité et Risques Toxiques-UMR_I 01 UPJV/INERIS, Centre Universitaire de Recherche en Santé, CURS-UPJV, University of Picardie Jules Verne, CEDEX 1, 80054, Amiens, France
| | - Pietra Candela
- Laboratoire de La Barrière Hémato-Encéphalique (LBHE), UR 2465, University of Artois, 62300, Lens, France
| | - Hafida Khorsi-Cauet
- PERITOX-Périnatalité et Risques Toxiques-UMR_I 01 UPJV/INERIS, Centre Universitaire de Recherche en Santé, CURS-UPJV, University of Picardie Jules Verne, CEDEX 1, 80054, Amiens, France.
| |
Collapse
|
2
|
di Domenico K, Lacchetti I, Cafiero G, Mancini A, Carere M, Mancini L. Reviewing the use of zebrafish for the detection of neurotoxicity induced by chemical mixtures through the analysis of behaviour. CHEMOSPHERE 2024; 359:142246. [PMID: 38710414 DOI: 10.1016/j.chemosphere.2024.142246] [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: 11/22/2023] [Revised: 04/17/2024] [Accepted: 05/02/2024] [Indexed: 05/08/2024]
Abstract
The knowledge and assessment of mixtures of chemical pollutants in the aquatic environment is a complex issue that is often challenging to address. In this review, we focused on the use of zebrafish (Danio rerio), a vertebrate widely used in biomedical research, as a model for detecting the effects of chemical mixtures with a focus on behaviour. Our aim was to summarize the current status of the ecotoxicological research in this sector. Specifically, we limited our research to the period between January 2012 and September 2023, including only those works aimed at detecting neurotoxicity through behavioural endpoints, utilizing zebrafish at one or more developmental stages, from egg to adult. Additionally, we gathered the findings for every group of chemicals involved and summarised data from all the works we included. At the end of the screening process 101 papers were considered eligible for inclusion. Results show a growing interest in zebrafish at all life stages for this kind of research in the last decade. Also, a wide variety of different assays, involving different senses, was used in the works we surveyed, with exposures ranging from acute to chronic. In conclusion, the results of this study show the versatility of zebrafish as a model for the detection of mixture toxicity although, for what concerns behavioural analysis, the lack of standardisation of methods and endpoints might still be limiting.
Collapse
Affiliation(s)
- Kevin di Domenico
- Ecohealth Unit, Environment and Health Department, Italian National Institute of Health, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Ines Lacchetti
- Ecohealth Unit, Environment and Health Department, Italian National Institute of Health, Viale Regina Elena 299, 00161, Rome, Italy
| | - Giulia Cafiero
- Environmental Risk Assessment, Wageningen Environmental Research, Wageningen, the Netherlands
| | - Aurora Mancini
- Ecohealth Unit, Environment and Health Department, Italian National Institute of Health, Viale Regina Elena 299, 00161, Rome, Italy
| | - Mario Carere
- Ecohealth Unit, Environment and Health Department, Italian National Institute of Health, Viale Regina Elena 299, 00161, Rome, Italy
| | - Laura Mancini
- Ecohealth Unit, Environment and Health Department, Italian National Institute of Health, Viale Regina Elena 299, 00161, Rome, Italy
| |
Collapse
|
3
|
Xie Y, Zhao J, Li X, Sun J, Yang H. Effects of Cyfluthrin Exposure on Neurobehaviour, Hippocampal Tissue and Synaptic Plasticity in Wistar Rats. TOXICS 2023; 11:999. [PMID: 38133400 PMCID: PMC10748044 DOI: 10.3390/toxics11120999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023]
Abstract
This experiment was conducted to study the effects of Cyfluthrin (Cy) exposure on neurobehaviour, hippocampal tissue and synaptic plasticity in Wistar rats. First, it was found that high-dose Cy exposure could cause nerve injury, resulting in symptoms such as deficits in learning and memory ability, spatial exploration and autonomic motor function. Moreover, it was found that medium- and high-dose Cy exposure could cause an abnormal release of the neurotransmitter Glu. Second, brain tissue pathology showed that the middle and high doses of Cy caused tissue deformation, reduced the number of hippocampal puramidal cells, caused a disorder of these cells, decreased the number of Nissl bodies, and caused pyknosis of the hippocampal cell nuclear membrane and serious damage to organelles, indicating that exposure to these doses of Cy may cause hippocampal tissue damage in rats. Third, as the exposure dose increased, morphological changes in hippocampal synapses, including blurred synaptic spaces, a decreased number of synaptic vesicles and a decreased number of synapses, became more obvious. Moreover, the expression levels of the key synaptic proteins PSD-95 and SYP also decreased in a dose-dependent manner, indicating obvious synaptic damage. Finally, the study found that medium and high doses of Cy could upregulate the expression of A2AR in the hippocampus and that the expression levels of inflammatory factors and apoptosis-related proteins increased in a dose-dependent manner. Moreover, the expression of A2AR mRNA was correlated with neurobehavioural indicators and the levels of inflammatory factors, synaptic plasticity-related factors and apoptosis-related factors, suggesting that Cy may cause nerve damage in rats and that this effect is closely related to A2AR.
Collapse
Affiliation(s)
- Yongxin Xie
- School of Public Health, Ningxia Medical University, Yinchuan 750004, China; (Y.X.); (J.Z.); (X.L.)
- Key Laboratory of Environmental Factors and Chronic Disease Control, No. 1160, Shengli Street, Xingqing District, Yinchuan 750004, China
| | - Ji Zhao
- School of Public Health, Ningxia Medical University, Yinchuan 750004, China; (Y.X.); (J.Z.); (X.L.)
- Key Laboratory of Environmental Factors and Chronic Disease Control, No. 1160, Shengli Street, Xingqing District, Yinchuan 750004, China
| | - Xiaoyu Li
- School of Public Health, Ningxia Medical University, Yinchuan 750004, China; (Y.X.); (J.Z.); (X.L.)
- Key Laboratory of Environmental Factors and Chronic Disease Control, No. 1160, Shengli Street, Xingqing District, Yinchuan 750004, China
| | - Jian Sun
- School of Public Health, Ningxia Medical University, Yinchuan 750004, China; (Y.X.); (J.Z.); (X.L.)
- Key Laboratory of Environmental Factors and Chronic Disease Control, No. 1160, Shengli Street, Xingqing District, Yinchuan 750004, China
| | - Huifang Yang
- School of Public Health, Ningxia Medical University, Yinchuan 750004, China; (Y.X.); (J.Z.); (X.L.)
- Key Laboratory of Environmental Factors and Chronic Disease Control, No. 1160, Shengli Street, Xingqing District, Yinchuan 750004, China
| |
Collapse
|
4
|
Hema T, Poopal RK, Ramesh M, Ren Z, Li B. Developmental toxicity of the emerging contaminant cyclophosphamide and the integrated biomarker response (IBRv2) in zebrafish. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2023; 25:1391-1406. [PMID: 37539704 DOI: 10.1039/d3em00186e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
The safety of cyclophosphamide (CP) in the early developmental stages is not studied yet; it is important to study the responses at these stages because they might have relevance to CP-administered humans. We studied the developmental toxicity of CP by analysing physiological, morphological, and oxidative stress, neurotransmission enzymes, gene expression and histological endpoints in zebrafish embryos/larvae. The study lasted for 120 hpf at environmentally relevant concentrations of CP. No visible alterations were noticed in the control group. Delayed hatching, slow heart rate, yolk sac oedema, pericardial oedema, morphological deformities, the incompetence of oxidative stress biomarkers, excessive generation of ROS, apoptosis, inhibition of neurotransmitters and histopathological anomalies were observed in CP-treated groups. These alterations were found to be concentration- and duration-dependent effects for physiological and morphological endpoints, whereas concentration-dependent effects were antioxidants, ROS, apoptosis and histological endpoints. Biomarkers and gene expression were standardised using the integrated biomarker response-IBRv2 index. The IBRv2 index showed a concentration-dependent behaviour. A non-lethal developmental and teratogenic effect was observed in CP-treated zebrafish embryos/larvae at the studied concentrations. The studied biomarkers are sensitive, and the responses are interrelated; thus, their responses are useful to assess veiled and unseen hazards of pharmaceuticals.
Collapse
Affiliation(s)
- Tamilselvan Hema
- Unit of Toxicology, Department of Zoology, Bharathiar University, Coimbatore 641 046, India
| | - Rama-Krishnan Poopal
- Institute of Environment and Ecology, Shandong Normal University, Jinan 250358, People's Republic of China.
- Unit of Toxicology, Department of Zoology, Bharathiar University, Coimbatore 641 046, India
| | - Mathan Ramesh
- Institute of Environment and Ecology, Shandong Normal University, Jinan 250358, People's Republic of China.
- Unit of Toxicology, Department of Zoology, Bharathiar University, Coimbatore 641 046, India
| | - Zongming Ren
- Institute of Environment and Ecology, Shandong Normal University, Jinan 250358, People's Republic of China.
| | - Bin Li
- Institute of Environment and Ecology, Shandong Normal University, Jinan 250358, People's Republic of China.
| |
Collapse
|
5
|
Tombari RJ, Mundy PC, Morales KM, Dunlap LE, Olson DE, Lein PJ. Developmental Neurotoxicity Screen of Psychedelics and Other Drugs of Abuse in Larval Zebrafish ( Danio rerio). ACS Chem Neurosci 2023; 14:875-884. [PMID: 36753397 PMCID: PMC9983010 DOI: 10.1021/acschemneuro.2c00642] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
In recent years, psychedelics have garnered significant interest as therapeutic agents for treating diverse neuropsychiatric disorders. However, the potential for these compounds to produce developmental neurotoxicity has not been rigorously assessed, and much of the available safety data is based on epidemiological studies with limited experimental testing in laboratory animal models. Moreover, the experimental safety data available thus far have focused on adult organisms, and the few studies conducted using developing organisms have tested a limited number of compounds, precluding direct comparisons between various chemical scaffolds. In the present study, 13 psychoactive compounds of different chemical or pharmacological classes were screened in a larval zebrafish model for teratological and behavioral abnormalities following acute and chronic developmental exposures. We found that the psychedelic tryptamines and ketamine were less neurotoxic to larval zebrafish than LSD and psychostimulants. Our work, which leverages the advantage of using zebrafish for higher throughput toxicity screening, provides a robust reference database for comparing the neurotoxicity profiles of novel psychedelics currently under development for therapeutic applications.
Collapse
Affiliation(s)
- Robert J Tombari
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States
| | - Paige C Mundy
- Department of Molecular Biosciences, University of California, Davis, Davis, California 95616, United States
| | - Kelly M Morales
- Department of Molecular Biosciences, University of California, Davis, Davis, California 95616, United States
| | - Lee E Dunlap
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States
| | - David E Olson
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States.,Department of Biochemistry & Molecular Medicine, School of Medicine, University of California, Davis, Sacramento, California 95817, United States.,Center for Neuroscience, University of California, Davis, Davis, California 95618, United States.,Institute for Psychedelics and Neurotherapeutics, University of California, Davis, Davis, California 95616, United States
| | - Pamela J Lein
- Department of Molecular Biosciences, University of California, Davis, Davis, California 95616, United States.,Center for Neuroscience, University of California, Davis, Davis, California 95618, United States
| |
Collapse
|