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Fan Q, Liang R, Chen M, Li Z, Tao X, Ren H, Sheng Y, Li J, Lin R, Zhao C, She G. Metabolic characteristics of evodiamine were associated with its hepatotoxicity via PPAR/PI3K/AKT/NF-кB/tight junction pathway-mediated apoptosis in zebrafish. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 279:116448. [PMID: 38754199 DOI: 10.1016/j.ecoenv.2024.116448] [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: 01/23/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 05/18/2024]
Abstract
Evodiae Fructus (EF), an herbal medicine, possesses remarkable anti-inflammatory and analgesic properties. It exhibits insecticidal activity as a potent insecticide candidate. However, the toxic characteristics of EF and the underlying mechanisms have not been comprehensively elucidated comprehensively. Thus, we comprehensively explored the toxic components of EF and established the relationship between the therapeutic and toxic effects of EF, encouraging its therapeutic use. We found that evodiamine (EVO), one of the main ingredients of EF, can truly reflect its analgesic properties. In phenotype observation trials, low doses of EVO (< 35 ng/mL) exhibited distinct analgesic activity without any adverse effects in zebrafish. However, EVO dose-dependently led to gross morphological abnormalities in the liver, followed by pericardial edema, and increased myocardial concentrations. Furthermore, the toxic effects of EVO decreased after processing in liver microsomes but increased after administering CYP450 inhibitors in zebrafish, highlighting the prominent effect of CYP450s in EVO-mediated hepatotoxicity. EVO significantly changed the expression of genes enriched in multiple pathways and biological processes, including lipid metabolism, inflammatory response, tight junction damage, and cell apoptosis. Importantly, the PPAR/PI3K/AKT/NF-кB/tight junction-mediated apoptosis pathway was confirmed as a critical functional signaling pathway inducing EVO-mediated hepatotoxicity. This study provided a typical example of the overall systematic evaluation of traditional Chinese medicine (TCM) and its active ingredients with significant therapeutic effects and simultaneous toxicities, especially metabolic toxicities.
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Affiliation(s)
- Qiqi Fan
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China
| | - Ruiqiang Liang
- National Institutes for Food and Drug Control, Beijing 100050, China
| | - Meilin Chen
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China
| | - Zhiqi Li
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China
| | - Xiaoyu Tao
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China
| | - Hongmin Ren
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China
| | - Yuhan Sheng
- Beijing University of Chinese Medicine, Beijing 100102,China
| | - Jiaqi Li
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China
| | - Ruichao Lin
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China.
| | - Chongjun Zhao
- Beijing University of Chinese Medicine, Beijing 100102,China; Beijing Key laboratory for Quality Evaluation of Chinese Materia Medica, Beijing 100102, China.
| | - Gaimei She
- Beijing University of Chinese Medicine, Beijing 100102,China.
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Briñez-Gallego P, da Costa Silva DG, Horn AP, Hort MA. Effects of curcumin to counteract levodopa-induced toxicity in zebrafish. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2023; 86:950-964. [PMID: 37767720 DOI: 10.1080/15287394.2023.2261120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder characterized by motor dysfunction due to the death of dopaminergic neurons in the substantia nigra pars compacta. Currently, treatment of PD has focused on increasing dopamine levels, using a dopamine precursor, levodopa (L-DOPA) or stimulation of dopaminergic receptors. Prolonged use of L-DOPA is associated with the occurrence of motor complications and dyskinesia, attributed to neurotoxic effects of this drug. The aim of this study was to investigate the effects of curcumin (CUR), a lipophilic polyphenol, to counteract L-DOPA induced toxicity. Zebrafish larvae were pre-treated with CUR (0.05 µM) or vehicle dimethyl sulfoxide (DMSO) for 24 hr and subsequently exposed to L-DOPA (1 mM) or vehicle. Immediately and 24 hr after L-DOPA exposure, spontaneous swimming and dark/light behavioral tests were performed. In addition, levels of reactive oxygen species (ROS) and lipid peroxidation products were determined at the end of treatment. CUR significantly improved the motor impairment induced by 24 hr L-DOPA treatment, and reduced levels of ROS and lipoperoxidation products in zebrafish larvae. In conclusion, our results suggest that CUR acts as a neuroprotector against toxicity initiated by L-DOPA. Evidence suggests the observed effects of CUR are associated with its antioxidant properties.
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Affiliation(s)
- Paola Briñez-Gallego
- Programa de Pós-graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brasil
| | - Dennis Guilherme da Costa Silva
- Programa de Pós-graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brasil
| | - Ana Paula Horn
- Programa de Pós-graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brasil
| | - Mariana Appel Hort
- Programa de Pós-graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brasil
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Zi Y, Barker JR, MacIsaac HJ, Zhang R, Gras R, Chiang YC, Zhou Y, Lu F, Cai W, Sun C, Chang X. Identification of neurotoxic compounds in cyanobacteria exudate mixtures. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159257. [PMID: 36208737 DOI: 10.1016/j.scitotenv.2022.159257] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/01/2022] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
Release of toxic cyanobacterial secondary metabolites threatens biosecurity, foodwebs and public health. Microcystis aeruginosa (Ma), the dominant species in global freshwater cyanobacterial blooms, produces exudates (MaE) that cause adverse outcomes including nerve damage. Previously, we identified > 300 chemicals in MaE. It is critical to investigate neurotoxicity mechanisms of active substances among this suite of Ma compounds. Here, we screened 103 neurotoxicity assays from the ToxCast database to reveal targets of action of MaE using machine learning. We then built a potential Adverse Outcome Pathway (AOP) to identify neurotoxicity mechanisms of MaE as well as key targets. Finally, we selected potential neurotoxins matched with those targets using molecular docking. We found 38 targets that were inhibited and eight targets that were activated, collectively mainly related to neurotransmission (i.e. cholinergic, dopaminergic and serotonergic neurotransmitter systems). The potential AOP of MaE neurotoxicity could be caused by blocking calcium voltage-gated channel (CACNA1A), because of antagonizing neurotransmitter receptors, or because of inhibiting solute carrier transporters. We identified nine neurotoxic MaE compounds with high affinity to those targets, including LysoPC(16:0), 2-acetyl-1-alkyl-sn-glycero-3-phosphocholine, egonol glucoside, polyoxyethylene (600) monoricinoleate, and phytosphingosine. Our study enhances understanding of neurotoxicity mechanisms and identifies neurotoxins in cyanobacterial bloom exudates, which may help identify priority compounds for cyanobacteria management.
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Affiliation(s)
- Yuanyan Zi
- School of Ecology and Environmental Sciences, Yunnan University, Kunming 650091, PR China; Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9 B 3P4, Canada
| | - Justin R Barker
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9 B 3P4, Canada
| | - Hugh J MacIsaac
- School of Ecology and Environmental Sciences, Yunnan University, Kunming 650091, PR China; Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9 B 3P4, Canada
| | - Ruihan Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Robin Gras
- School of Computer Science, University of Windsor, ON N9B 3P4, Canada
| | - Ying-Chih Chiang
- Kobilka Institute of Innovative Drug Discovery, School of Life and Health Science, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China
| | - Yuan Zhou
- School of Ecology and Environmental Sciences, Yunnan University, Kunming 650091, PR China
| | - Fangchi Lu
- Kobilka Institute of Innovative Drug Discovery, School of Life and Health Science, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China
| | - Wenwen Cai
- School of Ecology and Environmental Sciences, Yunnan University, Kunming 650091, PR China; Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9 B 3P4, Canada
| | - Chunxiao Sun
- School of Ecology and Environmental Sciences, Yunnan University, Kunming 650091, PR China; Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9 B 3P4, Canada
| | - Xuexiu Chang
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9 B 3P4, Canada; College of Agronomy and Life Sciences, Kunming University, Kunming 650214, China.
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Shuliakevich A, Schröder K, Nagengast L, Muz M, Pipal M, Brückner I, Hilscherova K, Brack W, Schiwy S, Hollert H. Morphological and behavioral alterations in zebrafish larvae after exposure to contaminated river sediments collected in different weather conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:157922. [PMID: 35961394 DOI: 10.1016/j.scitotenv.2022.157922] [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: 04/20/2022] [Revised: 07/31/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Wastewater treatment plants (WWTPs) are the primary source of micropollutants in aquatic ecosystems. Many micropollutants tend to bind to sediments and persist until remobilizion by bioturbation or flood events. Advanced effluent treatment by ozonation has been proven to eliminate most micropollutants. The present study characterizes sediments' toxic potential regarding zebrafish embryo development, which highly complex nervous system is vulnerable to exposure to neurotoxic substances. Furthermore, behavioral changes can be induced even at low pollutant concentrations and do not cause acute toxicity. The study area includes stretches of the main waterbody, the Wurm River (sampling sites W1-W5), and its tributary the Haarbach River (sampling sites H1, and H2) in North-Rhine Westphalia, Germany. Both waterbodies serve as recipients of WWTPs' effluents. The effluent entering the Haarbach River is conventionally treated, while the Wurm River receives ozonated effluent from the Aachen-Soers WWTP. Seven sampling sites up- and downstream of the WWTPs were investigated in June of two subsequent years. The first sampling campaign in 2017 was characterized by prolonged dry weather. The second sampling campaign in 2018 occurred after prolonged rain events and the release of the rainwater overflow basin. Direct exposure of zebrafish embryos to native sediments using the sediment contact test represented an ecologically realistic scenario and showed no acute sublethal effects. Exposure of the zebrafish embryo to freeze-dried sediments representing the ecotoxicological status of sediments during flood events unfolded acute sublethal toxicity. Behavioral studies with zebrafish larvae were an essential part of environmental neurotoxicity testing. Zebrafish larvae exposed to sediments' concentrations causing no acute effects led to behavioral changes signalizing neurotoxic substances in sediments. Polyaromatic hydrocarbons, polychlorinated biphenyls, and nitroaromatic compounds were identified as potential toxicity drivers, whereby the rainwater overflow basin served as a possible source of pollution. Mixture toxicity, effect-directed analysis, and further sediment monitoring are needed.
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Affiliation(s)
- Aliaksandra Shuliakevich
- Goethe University Frankfurt/Main, Department Evolutionary Ecology and Environmental Toxicology, Max-von-Laue-Strasse 13, 60438 Frankfurt/Main, Germany
| | - Katja Schröder
- RWTH Aachen University, Institute of Biology V, Worringerweg 1, 52074 Aachen, Germany
| | - Laura Nagengast
- RWTH Aachen University, Institute of Biology V, Worringerweg 1, 52074 Aachen, Germany
| | - Melis Muz
- Helmholtz Centre for Environmental Research - UFZ, Department of Effect-Directed Analysis, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Marek Pipal
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Ira Brückner
- Eifel-Rur Waterboard (WVER), Eisenbahnstr. 5, 52354 Düren, Germany
| | - Klara Hilscherova
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Werner Brack
- Goethe University Frankfurt/Main, Department Evolutionary Ecology and Environmental Toxicology, Max-von-Laue-Strasse 13, 60438 Frankfurt/Main, Germany; Helmholtz Centre for Environmental Research - UFZ, Department of Effect-Directed Analysis, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Sabrina Schiwy
- Goethe University Frankfurt/Main, Department Evolutionary Ecology and Environmental Toxicology, Max-von-Laue-Strasse 13, 60438 Frankfurt/Main, Germany
| | - Henner Hollert
- Goethe University Frankfurt/Main, Department Evolutionary Ecology and Environmental Toxicology, Max-von-Laue-Strasse 13, 60438 Frankfurt/Main, Germany.
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Cai W, MacIsaac HJ, Xu R, Zhang J, Pan X, Zhang Y, Yang J, Dixon B, Li J, Zi Y, Chang X. Abnormal neurobehavior in fish early life stages after exposure to cyanobacterial exudates. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 245:114119. [PMID: 36174318 DOI: 10.1016/j.ecoenv.2022.114119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/16/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Cyanobacterial harmful algal blooms (cHABs) pose a risk to exposed aquatic and terrestrial species. Numerous studies have addressed effects of single toxins while much less attention has been devoted to mixtures of cHAB metabolites that are continually released by living cyanobacteria. Neuro-impairment associated with cHABs has been reported in fish, though the mechanism remains unclear. Here we exposed embryos of Sinocyclocheilus grahami, an endangered fish, to Microcystis aeruginosa exudates (MaE) to evaluate neurotoxicity and the toxicity mechanism(s). We found that MaE affected embryonic development by increasing malformation and mortality rates and decreasing the fertilization rate. MaE also inhibited fish neurobehavior including touch response, social frequency, swimming distance, and aggravated light-stimulation response. Neurobehavior suppression resulted from a decrease in excitatory neurotransmitters acetylcholine and dopamine, even though receptors increased. MaE also affected gene and protein expression of neurotransmitters, synthetic and/or degrading enzymes, and receptors. Our findings shed light on specific mechanisms by which MaE induces neurotoxicity in early life stages in fish and contributes to improvement of the conservation strategy for this species.
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Affiliation(s)
- Wenwen Cai
- School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China; Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9B 3P4, Canada
| | - Hugh J MacIsaac
- School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China; Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9B 3P4, Canada
| | - Runbing Xu
- School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China
| | - Jinlong Zhang
- School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China
| | - Xiaofu Pan
- Yunnan Key Laboratory of Plateau Fish Breeding, Yunnan Engineering Research Center for Plateau-Lake Health and Restoration, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Yuanwei Zhang
- Yunnan Key Laboratory of Plateau Fish Breeding, Yunnan Engineering Research Center for Plateau-Lake Health and Restoration, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Junxing Yang
- Yunnan Key Laboratory of Plateau Fish Breeding, Yunnan Engineering Research Center for Plateau-Lake Health and Restoration, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Brian Dixon
- Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Jiaojiao Li
- School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China
| | - Yuanyan Zi
- School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China; Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9B 3P4, Canada
| | - Xuexiu Chang
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9B 3P4, Canada; College of Agronomy and Life Sciences, Kunming University, Kunming 650214, China.
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Review of Cyanotoxicity Studies Based on Cell Cultures. J Toxicol 2022; 2022:5647178. [PMID: 35509523 PMCID: PMC9061046 DOI: 10.1155/2022/5647178] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/28/2022] [Accepted: 03/25/2022] [Indexed: 12/23/2022] Open
Abstract
Cyanotoxins (CTs) are a large and diverse group of toxins produced by the peculiar photosynthetic prokaryotes of the domain Cyanoprokaryota. Toxin-producing aquatic cyanoprokaryotes can develop in mass, causing “water blooms” or “cyanoblooms,” which may lead to environmental disaster—water poisoning, extinction of aquatic life, and even to human death. CT studies on single cells and cells in culture are an important stage of toxicological studies with increasing impact for their further use for scientific and clinical purposes, and for policies of environmental protection. The higher cost of animal use and continuous resistance to the use of animals for scientific and toxicological studies lead to a progressive increase of cell lines use. This review aims to present (1) the important results of the effects of CT on human and animal cell lines, (2) the methods and concentrations used to obtain these results, (3) the studied cell lines and their tissues of origin, and (4) the intracellular targets of CT. CTs reviewed are presented in alphabetical order as follows: aeruginosins, anatoxins, BMAA (β-N-methylamino-L-alanine), cylindrospermopsins, depsipeptides, lipopolysaccharides, lyngbyatoxins, microcystins, nodularins, cyanobacterial retinoids, and saxitoxins. The presence of all these data in a review allows in one look to advance the research on CT using cell cultures by facilitating the selection of the most appropriate methods, conditions, and cell lines for future toxicological, pharmacological, and physiological studies.
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Fitzgerald JA, Könemann S, Krümpelmann L, Županič A, Vom Berg C. Approaches to Test the Neurotoxicity of Environmental Contaminants in the Zebrafish Model: From Behavior to Molecular Mechanisms. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:989-1006. [PMID: 33270929 DOI: 10.1002/etc.4951] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/15/2020] [Accepted: 11/29/2020] [Indexed: 06/12/2023]
Abstract
The occurrence of neuroactive chemicals in the aquatic environment is on the rise and poses a potential threat to aquatic biota of currently unpredictable outcome. In particular, subtle changes caused by these chemicals to an organism's sensation or behavior are difficult to tackle with current test systems that focus on rodents or with in vitro test systems that omit whole-animal responses. In recent years, the zebrafish (Danio rerio) has become a popular model organism for toxicological studies and testing strategies, such as the standardized use of zebrafish early life stages in the Organisation for Economic Co-operation and Development's guideline 236. In terms of neurotoxicity, the zebrafish provides a powerful model to investigate changes to the nervous system from several different angles, offering the ability to tackle the mechanisms of action of chemicals in detail. The mechanistic understanding gained through the analysis of this model species provides a good basic knowledge of how neuroactive chemicals might interact with a teleost nervous system. Such information can help infer potential effects occurring to other species exposed to neuroactive chemicals in their aquatic environment and predicting potential risks of a chemical for the aquatic ecosystem. In the present article, we highlight approaches ranging from behavioral to structural, functional, and molecular analysis of the larval zebrafish nervous system, providing a holistic view of potential neurotoxic outcomes. Environ Toxicol Chem 2021;40:989-1006. © 2020 SETAC.
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Affiliation(s)
- Jennifer A Fitzgerald
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | - Sarah Könemann
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
- EPF Lausanne, School of Architecture, Civil and Environmental Engineering, Lausanne, Switzerland
| | - Laura Krümpelmann
- Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland
| | - Anže Županič
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
- National Institute of Biology, Ljubljana, Slovenia
| | - Colette Vom Berg
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
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