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Imiuwa ME, Baynes A, Kanda R, Routledge EJ. Environmentally relevant concentrations of the tricyclic antidepressant, amitriptyline, affect feeding and reproduction in a freshwater mollusc. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 281:116656. [PMID: 38945099 DOI: 10.1016/j.ecoenv.2024.116656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 06/24/2024] [Accepted: 06/26/2024] [Indexed: 07/02/2024]
Abstract
Antidepressant drugs (ADDs) are one of the most extensively used pharmaceuticals globally. They act at particularly low therapeutic concentrations to modulate monoamine neurotransmission, which is one of the most evolutionary conserved pathways in both humans and animal species including invertebrates. As ADDs are widely detected in the aquatic environment at low concentrations (ng/L to low µg/L), their potential to exert drug-target mediated effects in aquatic species has raised serious concerns. Amitriptyline (AMI) is the most widely used tricyclic ADD, while monoamines, the target of ADDs, are major bioregulators of multiple key physiological processes including feeding, reproduction and behaviour in molluscs. However, the effects of AMI on feeding, reproduction and mating behaviour are unknown in molluscs despite their ecological importance, diversity and reported sensitivity to ADDs. To address this knowledge gap, we investigated the effects of environmentally relevant concentrations of AMI (0, 10, 100, 500 and 1000 ng/L) on feeding, reproduction and key locomotor behaviours, including mating, in the freshwater gastropod, Biomphalaria glabrata over a period of 28 days. To further provide insight into the sensitivity of molluscs to ADDs, AMI concentrations (exposure water and hemolymph) were determined using a novel extraction method. The Fish Plasma Model (FPM), a critical tool for prioritization assessment of pharmaceuticals with potential to cause drug target-mediated effects in fish, was then evaluated for its applicability to molluscs for the first time. Disruption of food intake (1000 ng/L) and reproductive output (500 and 1000 ng/L) were observed at particularly low hemolymph levels of AMI, whereas locomotor behaviours were unaffected. Importantly, the predicted hemolymph levels of AMI using the FPM agreed closely with the measured levels. The findings suggest that hemolymph levels of AMI may be a useful indicator of feeding and reproductive disruptions in wild population of freshwater gastropods, and confirm the applicability of the FPM to molluscs for comparative pharmaceutical hazard identification.
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Affiliation(s)
- Maurice E Imiuwa
- Environmental Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, Middlesex UB8 3PH, UK; Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, PMB 1154, Benin City, Nigeria.
| | - Alice Baynes
- Environmental Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, Middlesex UB8 3PH, UK
| | - Rakesh Kanda
- Environmental Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, Middlesex UB8 3PH, UK
| | - Edwin J Routledge
- Environmental Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, Middlesex UB8 3PH, UK.
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Yang W, Bu Q, Shi Q, Zhao R, Huang H, Yang L, Tang J, Ma Y. Emerging Contaminants in the Effluent of Wastewater Should Be Regulated: Which and to What Extent? TOXICS 2024; 12:309. [PMID: 38787088 PMCID: PMC11125804 DOI: 10.3390/toxics12050309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/22/2024] [Accepted: 04/22/2024] [Indexed: 05/25/2024]
Abstract
Effluent discharged from urban wastewater treatment plants (WWTPs) is a major source of emerging contaminants (ECs) requiring effective regulation. To this end, we collected discharge datasets of pharmaceuticals (PHACs) and endocrine-disrupting chemicals (EDCs), representing two primary categories of ECs, from Chinese WWTP effluent from 2012 to 2022 to establish an exposure database. Moreover, high-risk ECs' long-term water quality criteria (LWQC) were derived using the species sensitivity distribution (SSD) method. A total of 140 ECs (124 PHACs and 16 EDCs) were identified, with concentrations ranging from N.D. (not detected) to 706 μg/L. Most data were concentrated in coastal regions and Gansu, with high ecological risk observed in Gansu, Hebei, Shandong, Guangdong, and Hong Kong. Using the assessment factor (AF) method, 18 high-risk ECs requiring regulation were identified. However, only three of them, namely carbamazepine, ibuprofen, and bisphenol-A, met the derivation requirements of the SSD method. The LWQC for these three ECs were determined as 96.4, 1010, and 288 ng/L, respectively. Exposure data for carbamazepine and bisphenol-A surpassed their derived LWQC, indicating a need for heightened attention to these contaminants. This study elucidates the occurrence and risks of ECs in Chinese WWTPs and provides theoretical and data foundations for EC management in urban sewage facilities.
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Affiliation(s)
- Weiwei Yang
- School of Chemical & Environmental Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China (Q.S.)
| | - Qingwei Bu
- School of Chemical & Environmental Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China (Q.S.)
| | - Qianhui Shi
- School of Chemical & Environmental Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China (Q.S.)
| | - Ruiqing Zhao
- School of Chemical & Environmental Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China (Q.S.)
| | - Haitao Huang
- School of Chemical & Environmental Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China (Q.S.)
| | - Lei Yang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jianfeng Tang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yuning Ma
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
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Lin W, Qin Y, Ren Y. Flunitrazepam and its metabolites induced brain toxicity: Insights from molecular dynamics simulation and transcriptomic analysis. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133113. [PMID: 38043427 DOI: 10.1016/j.jhazmat.2023.133113] [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: 11/25/2023] [Accepted: 11/26/2023] [Indexed: 12/05/2023]
Abstract
Psychoactive drugs frequently contaminate aquatic environments after human consumption, raising concerns about their residues and ecological harm. This study investigates the effects of flunitrazepam (FLZ) and its metabolite 7-aminoflunitrazepam (7-FLZ), benzodiazepine-class psychoactive drugs, on brain accumulation, blood-brain barrier (BBB), and neuroinflammation of the model organism zebrafish. Molecular dynamics simulation and transcriptome sequencing were used to uncover their toxic mechanisms. Results demonstrate that both FLZ and 7-FLZ can accumulate in the brain, increasing Evans blue levels by 3.4 and 0.8 times, respectively. This increase results from abnormal expression of tight junction proteins, particularly ZO-1 and Occludin, leading to elevated BBB permeability. Furthermore, FLZ and 7-FLZ can also induce neuroinflammation, upregulating TNFα by 91% and 39%, respectively, leading to pathological changes and disrupted intracellular ion balance. Molecular dynamics simulation reveals conformational changes in ZO-1 and Occludin proteins, with FLZ exhibiting stronger binding forces and greater toxicity. Weighted gene co-expression network analysis identifies four modules correlated with BBB permeability and neuroinflammation. KEGG enrichment analysis of genes within these modules reveals pathways like protein processing in the endoplasmic reticulum, NOD-like receptor signaling pathway, and arginine and proline metabolism. This study enhances understanding of FLZ and 7-FLZ neurotoxicity and assesses environmental risks of psychoactive substances. ENVIRONMENTAL IMPLICATION: With the increasing prevalence of mental disorders and the discharge of psychoactive drugs into water, even low drug concentrations (ng/L-μg/L) can pose neurological risks. This study, utilizing molecular dynamic (MD) simulations and transcriptome sequencing, investigate the neurotoxicity and mechanisms of flunitrazepam and 7-aminoflunitrazepam. It reveals that they disrupt the blood-brain barrier in zebrafish and induce neuroinflammation primarily by inducing conformational changes in tight junction proteins. MD simulations are valuable for understanding pollutant-protein interactions. This research offers invaluable insights for the environmental risk assessment of psychoactive drugs and informs the development of strategies aimed at prevention and mitigation.
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Affiliation(s)
- Wenting Lin
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Yingjun Qin
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Yuan Ren
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, PR China; The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Guangzhou 510006, PR China.
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Fogliano C, Carotenuto R, Cirino P, Panzuto R, Ciaravolo M, Simoniello P, Sgariglia I, Motta CM, Avallone B. Benzodiazepine Interference with Fertility and Embryo Development: A Preliminary Survey in the Sea Urchin Paracentrotus lividus. Int J Mol Sci 2024; 25:1969. [PMID: 38396658 PMCID: PMC10888474 DOI: 10.3390/ijms25041969] [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: 12/04/2023] [Revised: 02/02/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
Psychotropic drugs and benzodiazepines are nowadays among the primary substances of abuse. This results in a large and constant release into aquatic environments where they have potentially harmful effects on non-target organisms and, eventually, human health. In the last decades, evidence has been collected on the possible interference of benzodiazepines with reproductive processes, but data are few and incomplete. In this study, the possible negative influence of delorazepam on fertilization and embryo development has been tested in Paracentrotus lividus, a key model organism in studies of reproduction and embryonic development. Sperm, eggs, or fertilized eggs have been exposed to delorazepam at three concentrations: 1 μg/L (environmentally realistic), 5 μg/L, and 10 μg/L. Results indicate that delorazepam reduces the fertilizing capacity of male and female gametes and interferes with fertilization and embryo development. Exposure causes anatomical anomalies in plutei, accelerates/delays development, and alters the presence and distribution of glycoconjugates such as N-Acetyl-glucosamine, α-linked fucose, and α-linked mannose in both morulae and plutei. These results should attract attention to the reproductive fitness of aquatic species exposed to benzodiazepines and pave the way for further investigation of the effects they may exert on human fertility. The presence of benzodiazepines in the aquatic environment raises concerns about the reproductive well-being of aquatic species. Additionally, it prompts worries regarding potential impacts on human fertility due to the excessive use of anxiolytics.
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Affiliation(s)
- Chiara Fogliano
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.F.); (R.C.); (M.C.); (I.S.); (B.A.)
| | - Rosa Carotenuto
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.F.); (R.C.); (M.C.); (I.S.); (B.A.)
| | - Paola Cirino
- Department of Conservation of Marine Animals and Public Engagement, Anton Dohrn Zoological Station, 80122 Naples, Italy; (P.C.); (R.P.)
| | - Raffaele Panzuto
- Department of Conservation of Marine Animals and Public Engagement, Anton Dohrn Zoological Station, 80122 Naples, Italy; (P.C.); (R.P.)
| | - Martina Ciaravolo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.F.); (R.C.); (M.C.); (I.S.); (B.A.)
| | - Palma Simoniello
- Department of Science and Technology, University of Naples Parthenope, 80133 Naples, Italy;
| | - Ilaria Sgariglia
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.F.); (R.C.); (M.C.); (I.S.); (B.A.)
| | - Chiara Maria Motta
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.F.); (R.C.); (M.C.); (I.S.); (B.A.)
| | - Bice Avallone
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.F.); (R.C.); (M.C.); (I.S.); (B.A.)
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Fogliano C, Carotenuto R, Agnisola C, Simoniello P, Karam M, Manfredonia C, Avallone B, Motta CM. Benzodiazepine Delorazepam Induces Locomotory Hyperactivity and Alterations in Pedal Mucus Texture in the Freshwater Gastropod Planorbarius corneus. Int J Mol Sci 2023; 24:17070. [PMID: 38069390 PMCID: PMC10706940 DOI: 10.3390/ijms242317070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 11/22/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Benzodiazepines, psychotropic drugs, are ubiquitous in the aquatic environment due to over-consumption and inefficient removal by sewage treatment plants. Bioaccumulation with consequent behavioral and physiological effects has been reported in many aquatic species. However, the responses are species-specific and still poorly understood. To improve the knowledge, we exposed the freshwater snail Planorbarius corneus to 1, 5, or 10 µg/L of delorazepam, the most widely consumed benzodiazepine in Italy. Conventional behavioral tests were used to assess the effects on locomotor and feeding behavior. Histological and biochemical analyses were also performed to detect possible changes in the structure and composition of the foot mucus and glands. The results show a paradoxical response with reduced feeding activity and locomotor hyperactivity. Pedal mucus was altered in texture but not in composition, becoming particularly rich in fibrous collagen-like material, and a significant change in the protein composition was highlighted in the foot. In conclusion, exposure to delorazepam induces disinhibited behavior in Planorbarius corneus, potentially increasing the risk of predation, and an increase in mucus protein production, which, together with reduced feeding activity, would severely compromise energy resources.
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Affiliation(s)
- Chiara Fogliano
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.F.); (R.C.); (C.A.); (M.K.); (C.M.); (C.M.M.)
| | - Rosa Carotenuto
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.F.); (R.C.); (C.A.); (M.K.); (C.M.); (C.M.M.)
| | - Claudio Agnisola
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.F.); (R.C.); (C.A.); (M.K.); (C.M.); (C.M.M.)
| | - Palma Simoniello
- Department of Science and Technology, University of Naples Parthenope, 80143 Naples, Italy;
| | - Myriam Karam
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.F.); (R.C.); (C.A.); (M.K.); (C.M.); (C.M.M.)
| | - Claudia Manfredonia
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.F.); (R.C.); (C.A.); (M.K.); (C.M.); (C.M.M.)
| | - Bice Avallone
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.F.); (R.C.); (C.A.); (M.K.); (C.M.); (C.M.M.)
| | - Chiara Maria Motta
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (C.F.); (R.C.); (C.A.); (M.K.); (C.M.); (C.M.M.)
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Lin W, Li K, Qin Y, Han X, Chen X, Ren Y. Flunitrazepam induces neurotoxicity in zebrafish through microbiota-gut-brain axis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 901:165974. [PMID: 37532048 DOI: 10.1016/j.scitotenv.2023.165974] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/02/2023] [Accepted: 07/30/2023] [Indexed: 08/04/2023]
Abstract
The abuse of psychoactive substances has led to their frequent detection in the environment, with unknown effects on the nervous system. In this study, zebrafish were exposed to benzodiazepine drug flunitrazepam (FLZ, 0.2 and 5 μg/L) for 30 days to assess its neurotoxicity. Results revealed that FLZ disrupted the balance of gut microbiota and caused an increase in pathogenic bacteria, such as Paracoccus and Aeromonas, leading to pathological damage to the intestine. The upregulation of intestinal pro-inflammatory factors, IL-1β and TNF-α, by 2.4 and 6.3 times, respectively, along with the downregulation of tight junction proteins, Occludin and zonula occludens 1 (ZO-1), by 80 % and 50 %, increased in intestinal permeability. Moreover, untargeted metabolomics demonstrated that FLZ interfered with intestinal nucleotide metabolism and amino acid biosynthesis. FLZ could also increase the levels of lipopolysaccharide (LPS) and malondialdehyde (MDA) in the brain by 0.9 and 3.4 times, respectively, leading to pathological changes in brain tissue. Furthermore, FLZ significantly disturbed nucleotide metabolism and amino acid biosynthesis and metabolism pathways in the brain. Correlation analysis between gut microbiota and neurochemicals confirmed that FLZ can induce neurotoxicity through the microbiota-gut-brain axis. These findings elucidate the molecular mechanisms of psychoactive drugs on microbiota-gut-brain axis and provide a theoretical basis for the ecological environmental risk assessment of various psychoactive substances.
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Affiliation(s)
- Wenting Lin
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Kan Li
- National Anti-Drug Laboratory Guangdong Regional Center, Guangzhou 510230, PR China; Anti-Drug Technology Center of Guangdong Province, Guangzhou 510230, PR China
| | - Yingjun Qin
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Xing Han
- National Anti-Drug Laboratory Guangdong Regional Center, Guangzhou 510230, PR China; Anti-Drug Technology Center of Guangdong Province, Guangzhou 510230, PR China
| | - Xiaohui Chen
- School of Medicine, South China University of Technology, Guangzhou 510006, PR China
| | - Yuan Ren
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, PR China; The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Guangzhou 510006, PR China.
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7
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Phukan D, Kumar V. Tracking drugged waters from various sources to drinking water-its persistence, environmental risk assessment, and removal techniques. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:86676-86698. [PMID: 37436619 DOI: 10.1007/s11356-023-28421-z] [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: 04/18/2023] [Accepted: 06/20/2023] [Indexed: 07/13/2023]
Abstract
Pharmaceuticals have become a major concern due to their nature of persistence and accumulation in the environment. Very few studies have been performed relating to its toxicity and ill effects on the aquatic/terrestrial flora and fauna. The typical wastewater and water treatment processes are not efficient enough to get these persistent pollutants treated, and there are hardly any guidelines followed. Most of them do not get fully metabolized and end up in rivers through human excreta and household discharge. Various methods have been adopted with the advancement in technology, sustainable methods are more in demand as they are usually cost-effective, and hardly any toxic by-products are produced. This paper aims to illustrate the concerns related to pharmaceutical contaminants in water, commonly found drugs in the various rivers and their existing guidelines, ill effects of highly detected pharmaceuticals on aquatic flora and fauna, and its removal and remediation techniques putting more emphasis on sustainable processes.
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Affiliation(s)
- Dixita Phukan
- Department of Environmental Science and Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India, 826004
| | - Vipin Kumar
- Department of Environmental Science and Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India, 826004.
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Salahinejad A, Meuthen D, Attaran A, Chivers DP, Ferrari MCO. Effects of common antiepileptic drugs on teleost fishes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 866:161324. [PMID: 36608821 DOI: 10.1016/j.scitotenv.2022.161324] [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: 09/30/2022] [Revised: 12/28/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
Antiepileptic drugs (AEDs) are globally prescribed to treat epilepsy and many other psychiatric disorders in humans. Their high consumption, low metabolic rate in the human body and low efficiency of wastewater treatment plants (WWTPs) in eliminating these chemicals results in the frequent occurrence of these pharmaceutical drugs in aquatic systems. Therefore, aquatic organisms, including ecologically and economically important teleost fishes, may be inadvertently exposed to these chemicals. Due to their physiological similarity with humans, fishes may be particularly vulnerable to AEDs. Almost all AED drugs are detectable in natural aquatic ecosystems, but diazepam (DZP) and carbamazepine (CBZ) are among the most widely detected AEDs to date. Recent studies suggest that these drugs have a substantial capacity to induce neurotoxicity and behavioral abnormality in fishes. Here we review the current state of knowledge regarding the potential mode of action of DZP and CBZ as well as that of some other AEDs on teleosts and put observable behavioral effects into a mechanistic context. We find that following their intended mode of action in humans, AEDs also disrupt the GABAergic, glutamatergic and serotonergic systems as well as parasympathetic neurotransmitters in fishes. Moreover, AEDs have non-specific modes of action in teleosts ranging from estrogenic activity to oxidative stress. These physiological changes are often accompanied by dose-dependent disruptions of anxiety, locomotor activity, social behaviors, food uptake, and learning and memory, but DZP and CBZ consistently induced anxiolytic effects. Thereby, AED exposure severely compromises individual fitness across teleost fish species, which may lead to population and ecosystem impairment. We also showcase promising avenues for future research by highlighting where we lack data when it comes to effects of certain AEDs, AED concentrations and behavioral endpoints.
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Affiliation(s)
- Arash Salahinejad
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada; Department of Veterinary Biomedical Sciences, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK S7N 5B4, Canada.
| | - Denis Meuthen
- Evolutionary Biology, Bielefeld University, 33615 Bielefeld, Germany
| | - Anoosha Attaran
- Robart Research Institute, The University of Western Ontario, London, ON N6A5K8, Canada
| | - Douglas P Chivers
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada
| | - Maud C O Ferrari
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada; Department of Veterinary Biomedical Sciences, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK S7N 5B4, Canada
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Sharma S, Dar OI, Thakur S, Kesavan AK, Kaur A. Environmentally relevant concentrations of Triclosan cause transcriptomic and biomolecular alterations in the hatchlings of Labeo rohita. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 96:104004. [PMID: 36328329 DOI: 10.1016/j.etap.2022.104004] [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: 05/07/2022] [Revised: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Suppression (p ≤ 0.05) of antioxidative/detoxification (except GPx and CYP3a) and cytoskeletal (except DHPR) genes but induction of metabolic (except for AST and TRY) and heat shock (except HSP60) genes of Labeo rohita hatchlings after 14 days of exposure to environmentally relevant concentrations of Triclosan (0.0063, 0.0126, 0.0252 and 0.06 mg/L) was followed by an increase (p ≤ 0.05) for most of the genes after 10 days recovery period. After recovery, LDH, ALT, CK, CHY, PA, HSP47 and DHPR declined, while SOD, CAT, GST, GR, GPx, CYP1a, CYP3a, AST, AChE, TRY, HSP60, HSP70, HSc71, HSP90 MLP-3, α-tropomyosin, desmin b and lamin b1 increased over exposure. Peak area of biomolecules (except 3290-3296, 2924-2925 and 2852-2855 cm-1) declined (p ≤ 0.01) more after recovery [except for an increase (p ≤ 0.01) at 1398-1401 cm-1]. CYP3a, CK, HSP90, MLP-3 and secondary structure of amide A are the most sensitive markers for the environmentally relevant concentrations of Triclosan.
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Affiliation(s)
- Sunil Sharma
- Aquatic Toxicology Lab, Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Owias Iqbal Dar
- Aquatic Toxicology Lab, Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab 143005, India; Department of Biosciences, University Institute of Biotechnology, Chandigarh University, Punjab 140413, India
| | - Sharad Thakur
- Molecular Microbiology Lab, Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Anup Kumar Kesavan
- Molecular Microbiology Lab, Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Arvinder Kaur
- Aquatic Toxicology Lab, Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab 143005, India.
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Bouly L, Vignet C, Carayon JL, Malgouyres JM, Fenet H, Géret F. Multigenerational responses in the Lymnaea stagnalis freshwater gastropod exposed to diclofenac at environmental concentrations. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 251:106266. [PMID: 36037607 DOI: 10.1016/j.aquatox.2022.106266] [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: 03/21/2022] [Revised: 07/17/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
Over the last decade, there has been increased concern about the occurrence of diclofenac (DCF) in aquatic ecosystems. Living organisms could be exposed to this "pseudo-persistent" pharmaceutical for more than one generation. In this multigenerational study, we assessed the DCF impact at environmentally relevant concentrations on the life history and behavioral parameters of two offspring generations (F1 and F2) of the Lymnaea stagnalis freshwater gastropod. Snail growth was affected by DCF in the F1 generation, with increased shell sizes of juveniles exposed to 0.1 µg L - 1 concentration and a decreased shell size at 2 and 10 µg L - 1. DCF also lowered food intake, enhanced locomotion activity and reduced the number of eggs/egg mass in the F1 generation. For the F2 generation, shorter time to hatch, faster growth, increased food intake and production of more egg masses/snail were induced by DCF exposure at 10 µg L - 1. Over time, DCF exposure led to maximization of L. stagnalis reproductive function. These results show that multigenerational studies are crucial to reveal adaptive responses to chronic contaminant exposure, which are not observable after short-term exposure.
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Affiliation(s)
- Lucie Bouly
- Biochimie et Toxicologie des Substances Bioactives, EA 7417, INU Champollion, Albi, France; HydroSciences Montpellier, University of Montpellier, IRD, CNRS, Montpellier, France.
| | - Caroline Vignet
- Biochimie et Toxicologie des Substances Bioactives, EA 7417, INU Champollion, Albi, France
| | - Jean-Luc Carayon
- Biochimie et Toxicologie des Substances Bioactives, EA 7417, INU Champollion, Albi, France
| | - Jean-Michel Malgouyres
- Biochimie et Toxicologie des Substances Bioactives, EA 7417, INU Champollion, Albi, France
| | - Hélène Fenet
- HydroSciences Montpellier, University of Montpellier, IRD, CNRS, Montpellier, France
| | - Florence Géret
- Biochimie et Toxicologie des Substances Bioactives, EA 7417, INU Champollion, Albi, France
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11
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Fogliano C, Motta CM, Venditti P, Fasciolo G, Napolitano G, Avallone B, Carotenuto R. Environmental concentrations of a delorazepam-based drug impact on embryonic development of non-target Xenopus laevis. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 250:106244. [PMID: 35878487 DOI: 10.1016/j.aquatox.2022.106244] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 07/11/2022] [Accepted: 07/18/2022] [Indexed: 06/15/2023]
Abstract
Benzodiazepines, psychotropics drugs used for treating sleep disorders, anxiety and epilepsy, represent a major class of emerging water pollutants. As occurs for other pharmaceutical residues, they are not efficiently degraded during sewage treatment and persist in effluent waters. Bioaccumulation is already reported in fish and small crustaceans, but the impact and consequences on other "non-target" aquatic species are still unclear and nowadays of great interest. In this study, we investigated the effects of a pharmaceutical preparation containing the benzodiazepine delorazepam on the embryogenesis of Xenopus laevis, amphibian model species, taxa at high risk of exposure to water contaminants. Environmental (1 μg/L) and two higher (5 and 10 μg/L) concentrations were tested on tadpoles up to stage 45/46. Results demonstrate that delorazepam interferes with embryo development and that the effects are prevalently dose-dependent. Delorazepam reduces vitality by decreasing heart rate and motility, induces marked cephalic and abdominal edema, as well as intestinal and retinal defects. At the molecular level, delorazepam increases ROS production, modifies the expression of some master developmental genes and pro-inflammatory cytokines. The resulting stress condition significantly affects embryos' development and threatens their survival. Similar effects should be expected as well in embryos belonging to other aquatic species that have not been yet considered targets for these pharmaceutical residues.
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Affiliation(s)
- Chiara Fogliano
- Department of Biology, University of Naples Federico II, Naples, Italy
| | | | - Paola Venditti
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Gianluca Fasciolo
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Gaetana Napolitano
- Department of Science and Technology, University of Naples Parthenope, Naples, Italy
| | - Bice Avallone
- Department of Biology, University of Naples Federico II, Naples, Italy.
| | - Rosa Carotenuto
- Department of Biology, University of Naples Federico II, Naples, Italy
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12
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Bouly L, Courant F, Bonnafé E, Carayon JL, Malgouyres JM, Vignet C, Gomez E, Géret F, Fenet H. Long-term exposure to environmental diclofenac concentrations impairs growth and induces molecular changes in Lymnaea stagnalis freshwater snails. CHEMOSPHERE 2022; 291:133065. [PMID: 34848232 DOI: 10.1016/j.chemosphere.2021.133065] [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: 09/21/2021] [Revised: 11/16/2021] [Accepted: 11/23/2021] [Indexed: 06/13/2023]
Abstract
As pharmaceutical substances are highly used in human and veterinary medicine and subsequently released in the environment, they represent emerging contaminants in the aquatic compartment. Diclofenac (DCF) is one of the most commonly detected pharmaceuticals in water and little research has been focused on its long-term effects on freshwater invertebrates. In this study, we assessed the chronic impacts of DCF on the freshwater gastropod Lymnaea stagnalis using life history, behavioral and molecular approaches. These organisms were exposed from the embryo to the adult stage to three environmentally relevant DCF concentrations (0.1, 2 and 10 μg/L). The results indicated that DCF impaired shell growth and feeding behavior at the juvenile stage, yet no impacts on hatching, locomotion and response to light stress were noted. The molecular findings (metabolomics and transcriptomic) suggested that DCF may disturb the immune system, energy metabolism, osmoregulation and redox balance. In addition, prostaglandin synthesis could potentially be inhibited by DCF exposure. The molecular findings revealed signs of reproduction impairment but this trend was not confirmed by the physiological tests. Combined omics tools provided complementary information and enabled us to gain further insight into DCF effects in freshwater organisms.
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Affiliation(s)
- Lucie Bouly
- Biochimie et Toxicologie des Substances Bioactives, EA 7417, INU Champollion, Albi, France; HydroSciences Montpellier, University of Montpellier, IRD, CNRS, Montpellier, France
| | - Frédérique Courant
- HydroSciences Montpellier, University of Montpellier, IRD, CNRS, Montpellier, France.
| | - Elsa Bonnafé
- Biochimie et Toxicologie des Substances Bioactives, EA 7417, INU Champollion, Albi, France
| | - Jean-Luc Carayon
- Biochimie et Toxicologie des Substances Bioactives, EA 7417, INU Champollion, Albi, France
| | - Jean-Michel Malgouyres
- Biochimie et Toxicologie des Substances Bioactives, EA 7417, INU Champollion, Albi, France
| | - Caroline Vignet
- Biochimie et Toxicologie des Substances Bioactives, EA 7417, INU Champollion, Albi, France
| | - Elena Gomez
- HydroSciences Montpellier, University of Montpellier, IRD, CNRS, Montpellier, France
| | - Florence Géret
- Biochimie et Toxicologie des Substances Bioactives, EA 7417, INU Champollion, Albi, France
| | - Hélène Fenet
- HydroSciences Montpellier, University of Montpellier, IRD, CNRS, Montpellier, France
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