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Tewari A. Respiratory system: Highly exposed yet under-reported organ in pyrethrin and pyrethroid toxicity. Toxicol Ind Health 2024:7482337241273808. [PMID: 39178350 DOI: 10.1177/07482337241273808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2024]
Abstract
Pyrethrin and pyrethroid are a relatively new class of pesticides with potent insecticidal properties. Pyrethrins are naturally occurring pesticides obtained from the Chrysanthemum cinerariaefolium flower, while pyrethroids are their synthetic derivatives. They are widely used as the insecticides of choice in agriculture, veterinary medicine, public health programs, and household activities. Pyrethrin, being a broad-spectrum insecticide kills a wide range of pests, while pyrethroids last longer in the environment owing to low susceptibility to sunlight, and greater stability and efficacy than parent molecules. Humans can be exposed through inhalation, ingestion, and dermal routes. Indoor usage of an insecticide poses a serious risk to human health, especially to women, children, and stay-at-home people. Although pyrethrin and pyrethroid are generally considered safe, sustained skin or inhalation exposure or direct contact with open wounds results in higher toxicity to mammals. There is a paucity of data on the impact of pyrethrin and pyrethroid on overall pulmonary health. The respiratory system, from the nose, nasal passages, airways, and bronchi to the pulmonary alveoli, is vulnerable to environmental contaminants such as pesticides because of its anatomical location as well as being a highly blood profused organ. Under and over-functioning of the respiratory system triggers diverse pathologies such as serious infections, allergies, asthma, metastatic malignancies, and auto-immune conditions. While the association between workplace-related pesticide exposures and respiratory diseases and symptoms is well documented, it is important to understand the adverse health impact of pyrethrin and pyrethroid on the general population for awareness and also for better regulation and implementation of the law.
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Affiliation(s)
- Anita Tewari
- Department of Veterinary Public Health & Epidemiology, College of Veterinary Science & Animal Husbandry, (NDVSU), Rewa, India
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Shi T, Zhang Q, Chen X, Mao G, Feng W, Yang L, Zhao T, Wu X, Chen Y. Overview of deltamethrin residues and toxic effects in the global environment. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:271. [PMID: 38954040 DOI: 10.1007/s10653-024-02043-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 05/21/2024] [Indexed: 07/04/2024]
Abstract
Pyrethroids are synthetic organic insecticides. Deltamethrin, as one of the pyrethroids, has high insecticidal activity against pests and parasites and is less toxic to mammals, and is widely used in cities and urban areas worldwide. After entering the natural environment, deltamethrin circulates between solid, liquid and gas phases and enters organisms through the food chain, posing significant health risks. Increasing evidence has shown that deltamethrin has varying degrees of toxicity to a variety of organisms. This review summarized worldwide studies of deltamethrin residues in different media and found that deltamethrin is widely detected in a range of environments (including soil, water, sediment, and air) and organisms. In addition, the metabolism of deltamethrin, including metabolites and enzymes, was discussed. This review shed the mechanism of toxicity of deltamethrin and its metabolites, including neurotoxicity, immunotoxicity, endocrine disruption toxicity, reproductive toxicity, hepatorenal toxicity. This review is aim to provide reference for the ecological security and human health risk assessment of deltamethrin.
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Affiliation(s)
- Tianli Shi
- School of the Environment and Safety Engineering, School of the Emergency Management, Jiangsu University, 301 Xuefu Rd, Zhenjiang, 212013, China
| | - Qinwen Zhang
- School of the Environment and Safety Engineering, School of the Emergency Management, Jiangsu University, 301 Xuefu Rd, Zhenjiang, 212013, China
| | - Xiangyu Chen
- School of the Environment and Safety Engineering, School of the Emergency Management, Jiangsu University, 301 Xuefu Rd, Zhenjiang, 212013, China
| | - Guanghua Mao
- School of the Environment and Safety Engineering, School of the Emergency Management, Jiangsu University, 301 Xuefu Rd, Zhenjiang, 212013, China
| | - Weiwei Feng
- School of the Environment and Safety Engineering, School of the Emergency Management, Jiangsu University, 301 Xuefu Rd, Zhenjiang, 212013, China
- Institute of Environmental Health and Ecological Safety, Jiangsu University, 301 Xuefu Rd, Zhenjiang, 212013, China
| | - Liuqing Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Rd, Zhenjiang, 212013, China
| | - Ting Zhao
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Rd, Zhenjiang, 212013, China
| | - Xiangyang Wu
- School of the Environment and Safety Engineering, School of the Emergency Management, Jiangsu University, 301 Xuefu Rd, Zhenjiang, 212013, China
| | - Yao Chen
- School of the Environment and Safety Engineering, School of the Emergency Management, Jiangsu University, 301 Xuefu Rd, Zhenjiang, 212013, China.
- Institute of Environmental Health and Ecological Safety, Jiangsu University, 301 Xuefu Rd, Zhenjiang, 212013, China.
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Liu Y, Liu C, Han M, Yu N, Pan W, Wang J, Fan Z, Wang W, Li X, Gu X. Distribution and Elimination of Deltamethrin Toxicity in Laying Hens. Foods 2023; 12:4385. [PMID: 38137188 PMCID: PMC10743181 DOI: 10.3390/foods12244385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 11/26/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023] Open
Abstract
Deltamethrin, an important pyrethroid insecticide, is frequently detected in human samples. This study aims to assess the potential effects of deltamethrin on human health and investigate the patterns of residue enrichment and elimination in 112 healthy laying hens. These hens were administered 20 mg·kg-1 deltamethrin based on their body weight. Gas chromatography-mass spectrometry (GC-MS) was used to investigate the residue enrichment pattern and elimination pattern of deltamethrin in the hens. The results indicated a significant increase in the concentration of deltamethrin in chicken manure during the treatment period. By the 14th day of administration, the concentration of deltamethrin in the stool reached 13,510.9 ± 172.24 μg·kg-1, with a fecal excretion rate of 67.56%. The pulmonary deltamethrin concentration was the second highest at 3844.98 ± 297.14 μg·kg-1. These findings suggest that chicken feces contain substantial amounts of deltamethrin after 14 days of continuous administration, and that it can easily transfer to the lungs. After 21 days of drug withdrawal, the residual concentration of deltamethrin in the fat of laying hens was 904.25 ± 295.32 μg·kg-1, with a half-life of 17 days and a slow elimination rate. In contrast, the lungs showed relatively low elimination half-lives of 0.2083 days, indicating faster elimination of deltamethrin in this tissue. These results highlight differences in the rate of deltamethrin elimination in different tissues during drug withdrawal. The fat of laying hens exhibited the highest residue of deltamethrin and the slowest elimination rate, while the lungs showed the fastest elimination rate. Moreover, deltamethrin was found to accumulate in the edible tissues of eggs and laying hens, suggesting that humans may be exposed to deltamethrin through food.
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Affiliation(s)
- Yiming Liu
- National Feed Drug Reference Laboratories, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Animal Antimicrobial Resistance Surveillance, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Laboratory of Quality & Safety Risk Assessment for Products on Feed-Origin Risk Factor, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chunshuang Liu
- National Feed Drug Reference Laboratories, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Animal Antimicrobial Resistance Surveillance, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Laboratory of Quality & Safety Risk Assessment for Products on Feed-Origin Risk Factor, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Mingyue Han
- National Feed Drug Reference Laboratories, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Animal Antimicrobial Resistance Surveillance, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Laboratory of Quality & Safety Risk Assessment for Products on Feed-Origin Risk Factor, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Na Yu
- National Feed Drug Reference Laboratories, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Animal Antimicrobial Resistance Surveillance, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Laboratory of Quality & Safety Risk Assessment for Products on Feed-Origin Risk Factor, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Wen Pan
- Zhong Mu Institutes of China Animal Husbandry Industry Co., Ltd., Beijing 100095, China
| | - Jie Wang
- Laboratory of Quality & Safety Risk Assessment for Products on Feed-Origin Risk Factor, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhiying Fan
- Laboratory of Quality & Safety Risk Assessment for Products on Feed-Origin Risk Factor, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Wei Wang
- Laboratory of Quality & Safety Risk Assessment for Products on Feed-Origin Risk Factor, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xiubo Li
- National Feed Drug Reference Laboratories, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Animal Antimicrobial Resistance Surveillance, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Laboratory of Quality & Safety Risk Assessment for Products on Feed-Origin Risk Factor, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xu Gu
- Laboratory of Quality & Safety Risk Assessment for Products on Feed-Origin Risk Factor, Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Raposo-Garcia S, Costas C, Louzao MC, Vale C, Botana LM. Synergistic effect of environmental food pollutants: Pesticides and marine biotoxins. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:160111. [PMID: 36370778 DOI: 10.1016/j.scitotenv.2022.160111] [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: 07/15/2022] [Revised: 10/24/2022] [Accepted: 11/06/2022] [Indexed: 06/16/2023]
Abstract
Emerging marine biotoxins such as ciguatoxins and pyrethroid compounds, widely used in agriculture, are independently treated as environmental toxicants. Their maximum residue levels in food components are set without considering their possible synergistic effects as consequence of their interaction with the same cellular target. There is an absolute lack of data on the possible combined cellular effects that biological and chemical pollutants, may have. Nowadays, an increasing presence of ciguatoxins in European Coasts has been reported and these toxins can affect human health. Similarly, the increasing use of phytosanitary products for control of food plagues has raised exponentially during the last decades due to climate change. The lack of data and regulation evaluating the combined effect of environmental pollutants with the same molecular target led us to analyse their in vitro effects. In this work, the effects of ciguatoxins and pyrethroids in human sodium channels were investigated. The results presented in this study indicate that both types of compounds have a profound synergistic effect in voltage-dependent sodium channels. These food pollutants act by decreasing the maximum peak inward sodium currents and hyperpolarizing the sodium channels activation, effects that are boosted by the simultaneous presence of both compounds. A fact that highlights the need to re-evaluate their limits in feedstock as well as their potential in vivo toxicity considering that they act on the same cellular target. Moreover, this work sets the cellular basis to further apply this type of studies to other water and food pollutants that may act synergistically and thus implement the corresponding regulatory limits taking into account its presence in a healthy diet.
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Affiliation(s)
- Sandra Raposo-Garcia
- Departamento de Farmacologı́a, Facultad de Veterinaria, Universidad de Santiago de Compostela, Campus Universitario s/n, 27002 Lugo, Spain
| | - Celia Costas
- Departamento de Farmacologı́a, Facultad de Veterinaria, Universidad de Santiago de Compostela, Campus Universitario s/n, 27002 Lugo, Spain
| | - M Carmen Louzao
- Departamento de Farmacologı́a, Facultad de Veterinaria, Universidad de Santiago de Compostela, Campus Universitario s/n, 27002 Lugo, Spain
| | - Carmen Vale
- Departamento de Farmacologı́a, Facultad de Veterinaria, Universidad de Santiago de Compostela, Campus Universitario s/n, 27002 Lugo, Spain.
| | - Luis M Botana
- Departamento de Farmacologı́a, Facultad de Veterinaria, Universidad de Santiago de Compostela, Campus Universitario s/n, 27002 Lugo, Spain.
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Oliveira JM, Condessa SS, Destro ALF, Lima GDA, do Carmo Cupertino M, Cardoso SA, Freitas MB, de Oliveira LL. Morphophysiological alterations in fruit-eating bats after oral exposure to deltamethrin. Int J Exp Pathol 2022; 103:219-230. [PMID: 36059214 PMCID: PMC9482353 DOI: 10.1111/iep.12455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 06/21/2022] [Indexed: 11/27/2022] Open
Abstract
Deltamethrin (DTM) is a synthetic pyrethroid widely used in the cultivation and management of several crops due to its insecticidal action. Application to crops of pyrethroids such as DTM can result in the exposure of water and fruit consumed by fruit bats having a high pyrethroid content which may be harmful. Therefore the objective of this study was to evaluate the effects of short-term oral exposure of the fruit-eating bats (Artibeus lituratus) to two concentrations of DTM (0.02 and 0.04 mg/kg of papaya) on histopathology of the intestine, liver and kidney. The intestine of the animals exposed to both concentrations showed inflammatory infiltrate, degeneration, necrosis and goblet cell hyperplasia as the most frequent pathologies. Besides, the acid mucins showed an increase in the frequency of non-viable cells. The liver showed hepatocyte vacuolizatio and nuclear enlargement, as well as inflammatory infiltrate and steatosis. The kidneys of the exposed animals showed and inflammatory infiltrate, benign nephrosclerosis, vacuolization and necrosis. Also, DTM reduced nitric oxide synthesis, decreased glomerular diameter and increased glycogen percentage in the proximal tubules. Our results suggest that acute exposure to DTM at low concentrations has the potential to induce pronounced histopathological changes in vital organs, such as intestine, liver and kidney of fruit-eating bats.
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Tekeli MY, Eraslan G, Çakır Bayram L, Soyer Sarıca Z. Effect of diosmin on lipid peoxidation and organ damage against subacute deltamethrin exposure in rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:15890-15908. [PMID: 33242198 DOI: 10.1007/s11356-020-11277-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 10/15/2020] [Indexed: 06/11/2023]
Abstract
The aim of this study was to investigate the protective efficacy of diosmin against subacute deltamethrin exposure. For this purpose, 40 male Wistar albino rats were used. The animals were assigned to the following 4 groups: control group (received corn oil vehicle alone), diosmin-treated group (50 mg/kg bw/day orally), deltamethrin-exposed group (5 mg/kg bw/day, orally) and coadministered group (5 mg/kg bw/day deltamethrin and 50 mg/kg bw/day diosmin, orally) for 28 days. Some lipid peroxidation/antioxidant status/biochemical markers were evaluated in blood/tissue (liver, kidney, brain, heart and testis) samples and the histopathological architecture was assessed. Compared with the control group, no alteration was detected in the parameters and histological findings of the diosmin-treated group. Deltamethrin toxicity was associated with significantly increased plasma, cardiac, hepatic, renal, cerebral and testicular levels of MDA and NO, and significantly decreased GSH levels (p < 0.05). Antioxidant enzyme status (SOD, CAT and GSH-Px activities) displayed either decrease or increase (p < 0.05). Significant increase was detected in AST and ALT activities and urea and creatinine levels (p < 0.05). The values of the group coadministered with deltamethrin and diosmin were similar to the values of the control group. Diosmin ameliorated deltamethrin-induced lymphocytic and histiocytic infiltration and subendocardial oedema in the heart. Combined administration also minimized hepatic, renal, testicular and cerebral histopathological findings. The alterations detected in various toxicological parameters correlated well with the histopathological changes observed in various organs. In conclusion, it is suggested that diosmin could provide protection against deltamethrin-induced toxicity and organ damage in rats.
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Affiliation(s)
- Muhammet Yasin Tekeli
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - Gökhan Eraslan
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey.
| | - Latife Çakır Bayram
- Department of Pathology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | - Zeynep Soyer Sarıca
- Hakan Çetinsaya Experimental and Clinical Research Center, Erciyes University, Kayseri, Turkey
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Srivastava BD, Srivastava M, Srivastav SK, Urata M, Suzuki N, Srivastav AK. Protective effects of jamun (Syzygium cumini) seed and orange (Citrus sinensis) peel extracts against cypermethrin-induced nephrotoxicity in rats. EGYPTIAN JOURNAL OF BASIC AND CLINICAL PHARMACOLOGY 2021. [DOI: 10.32527/2021/101492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - Manish Srivastava
- Department of Chemistry, Digvijai Nath P.G. College, Gorakhpur, India
| | | | - Makoto Urata
- Institute of Noto SATOUMI Education Research, Noto‐cho, Ishikawa 927-0553, Japan
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Division of Marine Environmental Studies, Kanazawa University, Noto-cho, Ishikawa 927-0553, Japan
| | - Nobuo Suzuki
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Division of Marine Environmental Studies, Kanazawa University, Noto-cho, Ishikawa 927-0553, Japan
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Ravula AR, Yenugu S. Long term oral administration of a mixture of pyrethroids affects reproductive function in rats. Reprod Toxicol 2019; 89:1-12. [DOI: 10.1016/j.reprotox.2019.06.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 06/12/2019] [Accepted: 06/14/2019] [Indexed: 12/17/2022]
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9
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Anitha M, Anitha R, Vijayaraghavan R, Senthil Kumar S, Ezhilarasan D. Oxidative stress and neuromodulatory effects of deltamethrin and its combination with insect repellents in rats. ENVIRONMENTAL TOXICOLOGY 2019; 34:753-759. [PMID: 30884102 DOI: 10.1002/tox.22741] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 02/11/2019] [Accepted: 02/17/2019] [Indexed: 06/09/2023]
Abstract
Deltamethrin (DEL) and other synthetic repellents like N,N-diethyl benzamide (DEB), N,N-diethyl phenylacetamide (DEPA), and N,N-diethyl meta toluamide (DEET) are widely used due their high efficacy against mosquitoes. We evaluated the safe dose on exposure to insecticide and insect repellent individually and in combination in Wistar rats. Rats were administrated with individual chemicals DEL, DEB, DEPA, and DEET and in combination of DEL along DEB, DEPA, and DEET. The reduced glutathione and its detoxifying enzymes were significantly increased in DEL treated rats. Serotonin, dopamine, and noradrenaline were increased in DEL alone and its combination groups. Histopathology revealed that DEL and along with other insect repellants can cause lung toxicities. This study suggests that DEL in combination with other insect repellents showed antagonistic effect against oxidative stress, and there was no significant toxicological effect in the combination groups. The insect repellents with DEL cause less toxic effect and is safe for use.
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Affiliation(s)
- Magesh Anitha
- Department of Research and Development, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - Roy Anitha
- Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical Sciences, Saveetha University, Chennai, India
| | - Rajagopal Vijayaraghavan
- Department of Research and Development, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - Sivanesan Senthil Kumar
- Department of Research and Development, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - Devaraj Ezhilarasan
- Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical Sciences, Saveetha University, Chennai, India
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Ullah S, Li Z, Ul Arifeen MZ, Khan SU, Fahad S. Multiple biomarkers based appraisal of deltamethrin induced toxicity in silver carp (Hypophthalmichthys molitrix). CHEMOSPHERE 2019; 214:519-533. [PMID: 30278404 DOI: 10.1016/j.chemosphere.2018.09.145] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 09/22/2018] [Accepted: 09/24/2018] [Indexed: 06/08/2023]
Abstract
Deltamethrin (DLM) is α-cyano (type II) synthetic pyrethroid. DLM exposure leads to strong neurotoxic effects and a number of complex toxicological syndromes. The current study assessed DLM mediated oxidative stress, behavioral, hematological, histopathological, and biochemical toxic effects on silver carp (Hypophthalmichthys molitrix). Exposure to an acute concentration (2 μg/L) of DLM resulted in different behavioral inconsistencies and a time-dependent significant (P < 0.05) change in the hematology and serum biochemistry of silver carp. A significant (P < 0.05) increase in the activities of reactive oxygen species, lipid peroxidation, and antioxidant enzymes whereas a significant decrease in total protein contents in the liver, gills, brain, and muscle tissues were observed. DLM exposure increased the activities of metabolic enzymes in the gills, muscles, and liver of silver carp. A significant (P < 0.05) increase in DNA damage in peripheral blood erythrocytes was evident. DLM exposure led to a time-dependent significant (P < 0.05) increase in the whole-body cortisol and blood glucose level, while a significant decrease in acetylcholine esterase activity in the brain, liver, and muscle tissues. Different histopathological changes in the liver, gills, brain, and intestine were observed, however, no significant change in the gross anatomy and morphometric parameters of the fish was observed. The current study provides valuable information for devising better strategies regarding environmental management, chemicals' risk assessment, biodiversity conservation, and monitoring of the aquatic organisms. DLM was concluded to be highly toxic to fish. The extensive use of DLM should be prohibited or allowed under strict environmental laws; otherwise, it might lead to the extermination of the susceptible wildlife, such as commercially very valuable but nearly threatened silver carp.
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Affiliation(s)
- Sana Ullah
- School of Life Sciences, Nanjing University, Nanjing, Jiangsu, 210023, PR China
| | - Zhongqiu Li
- School of Life Sciences, Nanjing University, Nanjing, Jiangsu, 210023, PR China.
| | | | - Shahid Ullah Khan
- National Key Laboratory of Crop Genetics and Improvement, College of Plant Sciences and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Shah Fahad
- Department of Agriculture, University of Swabi, Swabi, 23561, Khyber Pakhtunkhwa, Pakistan.
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