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Kleinbeck S, Wolkoff P. Exposure limits for indoor volatile substances concerning the general population: The role of population-based differences in sensory irritation of the eyes and airways for assessment factors. Arch Toxicol 2024; 98:617-662. [PMID: 38243103 PMCID: PMC10861400 DOI: 10.1007/s00204-023-03642-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 11/16/2023] [Indexed: 01/21/2024]
Abstract
Assessment factors (AFs) are essential in the derivation of occupational exposure limits (OELs) and indoor air quality guidelines. The factors shall accommodate differences in sensitivity between subgroups, i.e., workers, healthy and sick people, and occupational exposure versus life-long exposure for the general population. Derivation of AFs itself is based on empirical knowledge from human and animal exposure studies with immanent uncertainty in the empirical evidence due to knowledge gaps and experimental reliability. Sensory irritation in the eyes and airways constitute about 30-40% of OELs and is an abundant symptom in non-industrial buildings characterizing the indoor air quality and general health. Intraspecies differences between subgroups of the general population should be quantified for the proposal of more 'empirical' based AFs. In this review, we focus on sensitivity differences in sensory irritation about gender, age, health status, and vulnerability in people, based solely on human exposure studies. Females are more sensitive to sensory irritation than males for few volatile substances. Older people appear less sensitive than younger ones. However, impaired defense mechanisms may increase vulnerability in the long term. Empirical evidence of sensory irritation in children is rare and limited to children down to the age of six years. Studies of the nervous system in children compared to adults suggest a higher sensitivity in children; however, some defense mechanisms are more efficient in children than in adults. Usually, exposure studies are performed with healthy subjects. Exposure studies with sick people are not representative due to the deselection of subjects with moderate or severe eye or airway diseases, which likely underestimates the sensitivity of the group of people with diseases. Psychological characterization like personality factors shows that concentrations of volatile substances far below their sensory irritation thresholds may influence the sensitivity, in part biased by odor perception. Thus, the protection of people with extreme personality traits is not feasible by an AF and other mitigation strategies are required. The available empirical evidence comprising age, lifestyle, and health supports an AF of not greater than up to 2 for sensory irritation. Further, general AFs are discouraged for derivation, rather substance-specific derivation of AFs is recommended based on the risk assessment of empirical data, deposition in the airways depending on the substance's water solubility and compensating for knowledge and experimental gaps. Modeling of sensory irritation would be a better 'empirical' starting point for derivation of AFs for children, older, and sick people, as human exposure studies are not possible (due to ethical reasons) or not generalizable (due to self-selection). Dedicated AFs may be derived for environments where dry air, high room temperature, and visually demanding tasks aggravate the eyes or airways than for places in which the workload is balanced, while indoor playgrounds might need other AFs due to physical workload and affected groups of the general population.
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Affiliation(s)
- Stefan Kleinbeck
- Leibniz Research Centre for Working Environment and Human Factors, Dortmund, Germany.
| | - Peder Wolkoff
- National Research Centre for the Working Environment, Copenhagen, Denmark
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Li M, Rao C, Ye X, Wang M, Yang B, Wang C, Guo L, Xiong Y, Cui X. Applications for natural deep eutectic solvents in Chinese herbal medicines. Front Pharmacol 2023; 13:1104096. [PMID: 36699048 PMCID: PMC9868165 DOI: 10.3389/fphar.2022.1104096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 12/28/2022] [Indexed: 01/10/2023] Open
Abstract
Chinese herbal medicines (CHMs), with a wide range of bioactive components, are considered to be an important source for new drug discovery. However, the process to isolate and obtain those bioactive components to develop new drugs always consumes a large amount of organic solvents with high toxicity and non-biodegradability. Natural deep eutectic solvents (NADES), a new type of green and designable solvents composed of primary plant-based metabolites, have been used as eco-friendly substitutes for traditional organic solvents in various fields. Due to the advantages of easy preparation, low production cost, low toxicity, and eco-friendliness, NADES have been also applied as extraction solvents, media, and drug delivery agents in CHMs in recent years. Besides, the special properties of NADES have been contributed to elucidating the traditional processing (also named Paozhi in Chinese) theory of CHMs, especially processing with honey. In this paper, the development process, preparation, classification, and applications for NADES in CHMs have been reviewed. Prospects in the future applications and challenges have been discussed to better understand the possibilities of the new solvents in the drug development and other uses of CHMs.
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Affiliation(s)
- Minghui Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China,Yunnan Key Laboratory of Panax notoginseng, Kunming University of Science and Technology, Kunming, China
| | - Cheng Rao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China,Yunnan Key Laboratory of Panax notoginseng, Kunming University of Science and Technology, Kunming, China
| | - Xiaoqian Ye
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China,Yunnan Key Laboratory of Panax notoginseng, Kunming University of Science and Technology, Kunming, China
| | - Mei Wang
- Leiden University–European Center for Chinese Medicine and Natural Compounds, Institute of Biology Leiden, Leiden University, Leiden, Netherlands,SU Biomedicine BV, Leiden, Netherlands
| | - Boyuan Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China,Yunnan Key Laboratory of Panax notoginseng, Kunming University of Science and Technology, Kunming, China
| | - Chengxiao Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China,Yunnan Key Laboratory of Panax notoginseng, Kunming University of Science and Technology, Kunming, China
| | - Liqun Guo
- Center for Drug Discovery & Technology Development of Yunnan Traditional Medicine, Kunming, China
| | - Yin Xiong
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China,Yunnan Key Laboratory of Panax notoginseng, Kunming University of Science and Technology, Kunming, China,Leiden University–European Center for Chinese Medicine and Natural Compounds, Institute of Biology Leiden, Leiden University, Leiden, Netherlands,*Correspondence: Yin Xiong, ; Xiuming Cui,
| | - Xiuming Cui
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China,Yunnan Key Laboratory of Panax notoginseng, Kunming University of Science and Technology, Kunming, China,*Correspondence: Yin Xiong, ; Xiuming Cui,
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Hoegberg LCG, Shepherd G, Wood DM, Johnson J, Hoffman RS, Caravati EM, Chan WL, Smith SW, Olson KR, Gosselin S. Systematic review on the use of activated charcoal for gastrointestinal decontamination following acute oral overdose. Clin Toxicol (Phila) 2021; 59:1196-1227. [PMID: 34424785 DOI: 10.1080/15563650.2021.1961144] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION The use of activated charcoal in poisoning remains both a pillar of modern toxicology and a source of debate. Following the publication of the joint position statements on the use of single-dose and multiple-dose activated charcoal by the American Academy of Clinical Toxicology and the European Association of Poison Centres and Clinical Toxicologists, the routine use of activated charcoal declined. Over subsequent years, many new pharmaceuticals became available in modified or alternative-release formulations and additional data on gastric emptying time in poisoning was published, challenging previous assumptions about absorption kinetics. The American Academy of Clinical Toxicology, the European Association of Poison Centres and Clinical Toxicologists and the Asia Pacific Association of Medical Toxicology founded the Clinical Toxicology Recommendations Collaborative to create a framework for evidence-based recommendations for the management of poisoned patients. The activated charcoal workgroup of the Clinical Toxicology Recommendations Collaborative was tasked with reviewing systematically the evidence pertaining to the use of activated charcoal in poisoning in order to update the previous recommendations. OBJECTIVES The main objective was: Does oral activated charcoal given to adults or children prevent toxicity or improve clinical outcome and survival of poisoned patients compared to those who do not receive charcoal? Secondary objectives were to evaluate pharmacokinetic outcomes, the role of cathartics, and adverse events to charcoal administration. This systematic review summarizes the available evidence on the efficacy of activated charcoal. METHODS A medical librarian created a systematic search strategy for Medline (Ovid), subsequently translated for Embase (via Ovid), CINAHL (via EBSCO), BIOSIS Previews (via Ovid), Web of Science, Scopus, and the Cochrane Library/DARE. All databases were searched from inception to December 31, 2019. There were no language limitations. One author screened all citations identified in the search based on predefined inclusion/exclusion criteria. Excluded citations were confirmed by an additional author and remaining articles were obtained in full text and evaluated by at least two authors for inclusion. All authors cross-referenced full-text articles to identify articles missed in the searches. Data from included articles were extracted by the authors on a standardized spreadsheet and two authors used the GRADE methodology to independently assess the quality and risk of bias of each included study. RESULTS From 22,950 titles originally identified, the final data set consisted of 296 human studies, 118 animal studies, and 145 in vitro studies. Also included were 71 human and two animal studies that reported adverse events. The quality was judged to have a Low or Very Low GRADE in 469 (83%) of the studies. Ninety studies were judged to be of Moderate or High GRADE. The higher GRADE studies reported on the following drugs: paracetamol (acetaminophen), phenobarbital, carbamazepine, cardiac glycosides (digoxin and oleander), ethanol, iron, salicylates, theophylline, tricyclic antidepressants, and valproate. Data on newer pharmaceuticals not reviewed in the previous American Academy of Clinical Toxicology/European Association of Poison Centres and Clinical Toxicologists statements such as quetiapine, olanzapine, citalopram, and Factor Xa inhibitors were included. No studies on the optimal dosing for either single-dose or multiple-dose activated charcoal were found. In the reviewed clinical data, the time of administration of the first dose of charcoal was beyond one hour in 97% (n = 1006 individuals), beyond two hours in 36% (n = 491 individuals), and beyond 12 h in 4% (n = 43 individuals) whereas the timing of the first dose in controlled studies was within one hour of ingestion in 48% (n = 2359 individuals) and beyond two hours in 36% (n = 484) of individuals. CONCLUSIONS This systematic review found heterogenous data. The higher GRADE data was focused on a few select poisonings, while studies that addressed patients with unknown and or mixed ingestions were hampered by low rates of clinically meaningful toxicity or death. Despite these limitations, they reported a benefit of activated charcoal beyond one hour in many clinical scenarios.
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Affiliation(s)
- Lotte C G Hoegberg
- Department of Anesthesiology, The Danish Poisons Information Centre, Copenhagen University Hospital Bispebjerg, Copenhagen, Denmark
| | - Greene Shepherd
- Division of Practice Advancement and Clinical Education, UNC Eshelman School of Pharmacy, Chapel Hill, NC, USA
| | - David M Wood
- Clinical Toxicology, Guy's and St Thomas' NHS Foundation Trust and King's Health Partners, London, UK.,Clinical Toxicology, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Jami Johnson
- Oklahoma Center for Poison and Drug Information, University of Oklahoma College of Pharmacy, Oklahoma City, OK, USA
| | - Robert S Hoffman
- Division of Medical Toxicology, Ronald O. Perelman Department of Emergency Medicine, NYU Grossman School of Medicine, New York, NY, USA
| | - E Martin Caravati
- Division of Emergency Medicine, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Wui Ling Chan
- Department of Emergency Medicine, Ng Teng Fong General Hospital, Singapore, Singapore
| | - Silas W Smith
- Division of Medical Toxicology, Ronald O. Perelman Department of Emergency Medicine, NYU Grossman School of Medicine, New York, NY, USA
| | - Kent R Olson
- California Poison Control System, San Francisco Division, University of California, San Francisco, California
| | - Sophie Gosselin
- Emergency Department CISSS Montérégie Centre, Greenfield Park, Canada.,Centre antipoison du Québec, Québec, Canada.,Department of Emergency Medicine, McGill Faculty of Medicine, Montreal, Canada
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Li Y, Hsieh Y, Pan Z, Zhang L, Yu W, Wang B, Zhang J. Extraction of Alkaloids from Coptidis Rhizoma via Betaine‐Based Deep Eutectic Solvents. ChemistrySelect 2020. [DOI: 10.1002/slct.202000865] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yuanbin Li
- State Key Laboratory of Advanced Welding and JoiningHarbin Institute of Technology Shenzhen 518055 China
- Research Centre of Printed Flexible ElectronicsSchool of Materials Science and Engineering, Harbin Institute of Technology Shenzhen 518055 China
| | - Yun‐Hao Hsieh
- State Key Laboratory of Advanced Welding and JoiningHarbin Institute of Technology Shenzhen 518055 China
- Research Centre of Printed Flexible ElectronicsSchool of Materials Science and Engineering, Harbin Institute of Technology Shenzhen 518055 China
| | - Zuchen Pan
- State Key Laboratory of Advanced Welding and JoiningHarbin Institute of Technology Shenzhen 518055 China
- Research Centre of Printed Flexible ElectronicsSchool of Materials Science and Engineering, Harbin Institute of Technology Shenzhen 518055 China
| | - Ling Zhang
- School of ScienceHarbin Institute of Technology Shenzhen 518055 China
| | - Wen Yu
- State Key Laboratory of Advanced Welding and JoiningHarbin Institute of Technology Shenzhen 518055 China
- Research Centre of Printed Flexible ElectronicsSchool of Materials Science and Engineering, Harbin Institute of Technology Shenzhen 518055 China
| | - Binshen Wang
- State Key Laboratory of Advanced Welding and JoiningHarbin Institute of Technology Shenzhen 518055 China
- Research Centre of Printed Flexible ElectronicsSchool of Materials Science and Engineering, Harbin Institute of Technology Shenzhen 518055 China
- Department of Chemistry and BiotechnologyYokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
| | - Jiaheng Zhang
- State Key Laboratory of Advanced Welding and JoiningHarbin Institute of Technology Shenzhen 518055 China
- Research Centre of Printed Flexible ElectronicsSchool of Materials Science and Engineering, Harbin Institute of Technology Shenzhen 518055 China
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Hayyan M, Mbous YP, Looi CY, Wong WF, Hayyan A, Salleh Z, Mohd-Ali O. Natural deep eutectic solvents: cytotoxic profile. SPRINGERPLUS 2016; 5:913. [PMID: 27386357 PMCID: PMC4927554 DOI: 10.1186/s40064-016-2575-9] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 06/15/2016] [Indexed: 01/15/2023]
Abstract
The purpose of this study was to investigate the cytotoxic profiles of different ternary natural deep eutectic solvents (NADESs) containing water. For this purpose, five different NADESs were prepared using choline chloride as a salt, alongside five hydrogen bond donors (HBD) namely glucose, fructose, sucrose, glycerol, and malonic acid. Water was added as a tertiary component during the eutectics preparation, except for the malonic acid-based mixture. Coincidentally, the latter was found to be more toxic than any of the water-based NADESs. A trend was observed between the cellular requirements of cancer cells, the viscosity of the NADESs, and their cytotoxicity. This study also highlights the first time application of the conductor-like screening model for real solvent (COSMO-RS) software for the analysis of the cytotoxic mechanism of NADESs. COSMO-RS simulation of the interactions between NADESs and cellular membranes' phospholipids suggested that NADESs strongly interacted with cell surfaces and that their accumulation and aggregation possibly defined their cytotoxicity. This reinforced the idea that careful selection of NADESs components is necessary, as it becomes evident that organic acids as HBD highly contribute to the increasing toxicity of these neoteric mixtures. Nevertheless, NADESs in general seem to possess relatively less acute toxicity profiles than their DESs parents. This opens the door for future large scale utilization of these mixtures.
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Affiliation(s)
- Maan Hayyan
- />University of Malaya Centre for Ionic Liquids (UMCiL), University of Malaya, 50603 Kuala Lumpur, Malaysia
- />Department of Civil Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Yves Paul Mbous
- />University of Malaya Centre for Ionic Liquids (UMCiL), University of Malaya, 50603 Kuala Lumpur, Malaysia
- />Department of Chemical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Chung Yeng Looi
- />Department of Pharmacology, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Won Fen Wong
- />Department of Medical Microbiology, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Adeeb Hayyan
- />University of Malaya Centre for Ionic Liquids (UMCiL), University of Malaya, 50603 Kuala Lumpur, Malaysia
- />Institute of Halal Research University of Malaya (IHRUM), Academy of Islamic Studies, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Zulhaziman Salleh
- />University of Malaya Centre for Ionic Liquids (UMCiL), University of Malaya, 50603 Kuala Lumpur, Malaysia
- />Department of Chemical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Ozair Mohd-Ali
- />UiTM Medical Specialist Centre, University of Technology MARA, Jalan Hospital, 47000 Sungai Buloh, Selangor, Malaysia
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Das L, Das S, Chatterjee J. Dose Dependent Effect of Iso-Octane on HaCaT: A Model Study. Toxicol Int 2015; 22:83-91. [PMID: 26862266 PMCID: PMC4721182 DOI: 10.4103/2230-8210.172264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE Improved understanding of cytotoxicity under chemical assaults may be achieved by multimodal analysis of cellular morphology, viability, molecular expressions, and biophysical properties. MATERIALS AND METHODS In this study dose-dependent effects of an organic solvent (OS), iso-octane (IO), known to cause skin irritation, has been explored multimodally for understanding its effect on structural and functional profile of normal epithelial cell population in vitro. RESULTS Under IO exposures, after 5 h there was a sharp decrease in viability of HaCaT with increasing doses which may be due to disruption in cellular association noted via immunocytochemical study and was further supported by the decreased expression of E-cadherin at transcriptomic level. Dislocation of E-cadherin from membrane to the cytoplasm occurred with increasing doses. The dose-dependent changes in varied aspects of bioelectrical properties, having plausible correlation with cellular viability, association, and adherence were noteworthy at 5 h of IO exposure. Evaluation of biomechanical properties by micropipette aspiration showed a distinct change in cellular stiffness in terms of increase in suction force and post-suction alteration in cellular shape. The cells became stiffer and fragile with increasing IO doses. CONCLUSION Present study explicated dose-dependent cytotoxicity of IO on HaCaT and explored the usefulness of this approach to develop in vitro model system to evaluate epithelial toxicity with level-free markers.
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Affiliation(s)
- Lopamudra Das
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Soumen Das
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Jyotirmoy Chatterjee
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
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van Thriel C, Westerink RHS, Beste C, Bale AS, Lein PJ, Leist M. Translating neurobehavioural endpoints of developmental neurotoxicity tests into in vitro assays and readouts. Neurotoxicology 2011; 33:911-24. [PMID: 22008243 DOI: 10.1016/j.neuro.2011.10.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Accepted: 10/04/2011] [Indexed: 12/11/2022]
Abstract
The developing nervous system is particularly vulnerable to chemical insults. Exposure to chemicals can result in neurobehavioural alterations, and these have been used as sensitive readouts to assess neurotoxicity in animals and man. Deconstructing neurobehaviour into relevant cellular and molecular components may allow for detection of specific neurotoxic effects in cell-based systems, which in turn may allow an easier examination of neurotoxic pathways and modes of actions and eventually inform the regulatory assessment of chemicals with potential developmental neurotoxicity. Here, current developments towards these goals are reviewed. Imaging genetics (CB) provides new insights into the neurobiological correlates of cognitive function that are being used to delineate neurotoxic mechanisms. The gaps between in vivo neurobehaviour and real-time in vitro measurements of neuronal function are being bridged by ex vivo measurements of synaptic plasticity (RW). An example of solvent neurotoxicity demonstrates how an in vivo neurological defect can be linked via the N-methyl-d-aspartate (NMDA)-glutamate receptor as a common target to in vitro readouts (AB). Axonal and dendritic morphology in vitro proved to be good correlates of neuronal connectivity and neurobehaviour in animals exposed to polychlorinated biphenyls and organophosphorus pesticides (PJL). Similarly, chemically induced changes in neuronal morphology affected the formation of neuronal networks on structured surfaces. Such network formation may become an important readout for developmental neurotoxicity in vitro (CvT), especially when combined with human neurons derived from embryonic stem cells (ML). We envision that future in vitro test systems for developmental neurotoxicity will combine the above approaches with exposure information, and we suggest a strategy for test system development and cell-based risk assessment.
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Affiliation(s)
- Christoph van Thriel
- Neurobehavioural Toxicology and Chemosensation, IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund, Germany.
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Morata TC, Sliwinska-Kowalska M, Johnson AC, Starck J, Pawlas K, Zamyslowska-Szmytke E, Nylen P, Toppila E, Krieg E, Pawlas N, Prasher D. A multicenter study on the audiometric findings of styrene-exposed workers. Int J Audiol 2011; 50:652-60. [DOI: 10.3109/14992027.2011.588965] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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A review of potential neurotoxic mechanisms among three chlorinated organic solvents. Toxicol Appl Pharmacol 2011; 255:113-26. [DOI: 10.1016/j.taap.2011.05.008] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 05/06/2011] [Accepted: 05/08/2011] [Indexed: 12/17/2022]
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10
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Wang X, Zhou S, Ding X, Zhu G, Guo J. Effect of triazophos, fipronil and their mixture on miRNA expression in adult zebrafish. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2010; 45:648-657. [PMID: 20818518 DOI: 10.1080/03601234.2010.502435] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
MicroRNA (miRNA) plays a crucial role in gene expression regulation. However, no data are available on change of miRNA expression of zebrafish (Danio rerio) after treatment with pesticides. We evaluated the effect of fipronil (5-amino-1-[2, 6-dichloro-4-(trifluoromethyl) phenyl]-4-[(trifluoromethyl) sulfinyl]-1H-pyrazole-3-carbonitrile) and triazophos (3-(O, O-diethyl)-1-phenyl thiophosphoryl-1, 2, 4-triazol) and their mixture on miRNA expression in zebrafish.MiRNA expression profiles in zebrafish were altered after treatment with these chemicals. An association between these chemicals and the expression of 21 miRNAs was found 96 h after treatment. Among them, 14 miRNAs were differentially expressed due to the treatments with fipronil, triazophos and their mixture; 5 miRNAs showed altered expression level after treatment with formulations of these chemicals; miR-29b and miR-738 were differentially expressed after treatment with adjuvants. MiRNAs might present a novel toxicological response that could be used as a toxicological biomarker and have a different direction for future investigations of their association with miRNAs involved in chemical related diseases.
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Affiliation(s)
- Xingxing Wang
- Institute of Bioengineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, PR China
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Sone H, Okura M, Zaha H, Fujibuchi W, Taniguchi T, Akanuma H, Nagano R, Ohsako S, Yonemoto J. Profiles of Chemical Effects on Cells (pCEC): a toxicogenomics database with a toxicoinformatics system for risk evaluation and toxicity prediction of environmental chemicals. J Toxicol Sci 2010; 35:115-23. [DOI: 10.2131/jts.35.115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Hideko Sone
- Research Center for Environmental Risk, National Institute for Environmental Studies
| | - Masahiro Okura
- Research Center for Environmental Risk, National Institute for Environmental Studies
| | - Hiroko Zaha
- Research Center for Environmental Risk, National Institute for Environmental Studies
| | - Wataru Fujibuchi
- Advanced Industrial Science and Technology (AIST), Computational Biology Research Center
| | - Takeaki Taniguchi
- Mitsubishi Research Institute, Inc., Practice Areas and Industry Sectors
| | - Hiromi Akanuma
- Research Center for Environmental Risk, National Institute for Environmental Studies
| | - Reiko Nagano
- Research Center for Environmental Risk, National Institute for Environmental Studies
| | - Seiichiro Ohsako
- Graduate School and Faculty of Medicine, The University of Tokyo
| | - Junzo Yonemoto
- Research Center for Environmental Risk, National Institute for Environmental Studies
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Miscellaneous drugs, materials, medical devices, and techniques. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/s0378-6080(10)32049-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Herpin G, Gauchard GC, Vouriot A, Hannhart B, Barot A, Mur JM, Zmirou-Navier D, Perrin PP. Impaired neuromotor functions in hospital laboratory workers exposed to low levels of organic solvents. Neurotox Res 2008; 13:185-96. [PMID: 18522898 DOI: 10.1007/bf03033502] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Solvents are ubiquitous in industrial societies in a wide range of processes, and long-term exposure to these organic compounds may impair neuromotor functions such as equilibrium function. However, there is limited knowledge of effects on posture and gaze control after organic solvent exposures below workplace threshold limit values. The aim of this study was to evaluate the consequences of low-level co-exposure to organic solvents on balance and gaze control in hospital laboratory workers. Twelve hospital laboratory female subjects mainly exposed to toluene and ethanol, with median exposure duration of 24 years, and 12 non-exposed female controls were submitted to posturography and oculomotricity testings including sensory organization and motor control tests and saccade and smooth pursuit tests. Although current measured exposure values to toluene and ethanol were much below workplace threshold limit values (current median exposure levels of 32.5 mg/cubic meter and 39.9 mg/cubic meter, respectively), exposed workers displayed a weaker balance and a less precise gaze control. They presented, on the one hand, a reduced ability to resolve sensorial conflict situations compared to controls, particularly when situations were managed by the vestibular information, and, on the other hand, longer saccadic reaction time. Organic solvents might have an impact on vestibular pathways involved in postural control and exert a depressant central pathway effect implicated in the management of oculomotor response. Evaluating balance control in sensory conflicting situations and saccadic reaction time is proposed as a way to reveal subclinical neurotoxicological effects due to low-level exposure to organic solvents.
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Affiliation(s)
- Guillaume Herpin
- Nancy-University, Henri Poincaré University, Balance Control and Motor Performance, UFR STAPS, Villers-lés-Nancy, France
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