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Klaas-Fábregas M, Gómez-Ramírez P, Fernández-Gómez L, Alfonso I Prieto J, Garrido I, Cava J, Martínez-Escudero CM, Fenoll J, Pérez-García JM. First Detection of Thiamethoxam in a Free-Ranging Insectivorous Bird After its Agricultural Use Ban in Spain. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2024. [PMID: 38771171 DOI: 10.1002/etc.5899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/09/2024] [Accepted: 04/24/2024] [Indexed: 05/22/2024]
Abstract
Neonicotinoids are insecticides used worldwide in phytosanitary and biocidal products and veterinary pharmaceuticals. Recently, some restrictions and bans have been imposed due to their adverse effects on nontarget invertebrates, including pollinators. Although they may have direct and indirect effects on wild vertebrates, few studies have assessed exposure to these compounds in wild birds, so our knowledge remains limited. In the present pilot study we have assessed the prevalence of seven neonicotinoid insecticides and some of their metabolites in whole blood samples from 19 European roller (Coracias garrulus) nestlings and five adult common kestrels (Falco tinnunculus) in an area treated with neonicotinoids to control the palm weevil (Rynchophorus ferrugineus) in southeastern Spain. One European roller nestling born in a palm tree was positive for thiamethoxam, with a concentration of 2.26 ng mL-1, but no residues of neonicotinoids or their metabolites were found in adult common kestrels. Future studies are needed to elucidate potential exposure to neonicotinoids at different times of the year. To our knowledge, this is the first report of the presence of thiamethoxam residues in whole blood of a wild bird species after its ban in Spain. Environ Toxicol Chem 2024;00:1-8. © 2024 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- Marina Klaas-Fábregas
- Area of Toxicology, Department of Social Health Sciences, University of Murcia, Murcia, Spain
| | - Pilar Gómez-Ramírez
- Area of Toxicology, Department of Social Health Sciences, University of Murcia, Murcia, Spain
| | - Lola Fernández-Gómez
- Department of Applied Biology, Centro de Investigación e Innovación Alimentaria (CIAGRO-UMH), Universidad Miguel Hernández de Elche, Elche, Spain
| | | | - Isabel Garrido
- Instituto Murciano de Investigación y Desarrollo Agrario y Medioambiental (IMIDA), Murcia, Spain
| | - Juana Cava
- Instituto Murciano de Investigación y Desarrollo Agrario y Medioambiental (IMIDA), Murcia, Spain
| | | | - Jose Fenoll
- Instituto Murciano de Investigación y Desarrollo Agrario y Medioambiental (IMIDA), Murcia, Spain
| | - Juan M Pérez-García
- Department of Applied Biology, Centro de Investigación e Innovación Alimentaria (CIAGRO-UMH), Universidad Miguel Hernández de Elche, Elche, Spain
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2
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Fritsch C, Berny P, Crouzet O, Le Perchec S, Coeurdassier M. Wildlife ecotoxicology of plant protection products: knowns and unknowns about the impacts of currently used pesticides on terrestrial vertebrate biodiversity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33026-1. [PMID: 38639904 DOI: 10.1007/s11356-024-33026-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 03/17/2024] [Indexed: 04/20/2024]
Abstract
Agricultural practices are a major cause of the current loss of biodiversity. Among postwar agricultural intensification practices, the use of plant protection products (PPPs) might be one of the prominent drivers of the loss of wildlife diversity in agroecosystems. A collective scientific assessment was performed upon the request of the French Ministries responsible for the Environment, for Agriculture and for Research to review the impacts of PPPs on biodiversity and ecosystem services based on the scientific literature. While the effects of legacy banned PPPs on ecosystems and the underlying mechanisms are well documented, the impacts of current use pesticides (CUPs) on biodiversity have rarely been reviewed. Here, we provide an overview of the available knowledge related to the impacts of PPPs, including biopesticides, on terrestrial vertebrates (i.e. herptiles, birds including raptors, bats and small and large mammals). We focused essentially on CUPs and on endpoints at the subindividual, individual, population and community levels, which ultimately linked with effects on biodiversity. We address both direct toxic effects and indirect effects related to ecological processes and review the existing knowledge about wildlife exposure to PPPs. The effects of PPPs on ecological functions and ecosystem services are discussed, as are the aggravating or mitigating factors. Finally, a synthesis of knowns and unknowns is provided, and we identify priorities to fill gaps in knowledge and perspectives for research and wildlife conservation.
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Affiliation(s)
- Clémentine Fritsch
- Laboratoire Chrono-Environnement, UMR 6249 CNRS/Université de Franche-Comté, 16 Route de Gray, F-25000, Besançon, France
| | - Philippe Berny
- UR-ICE, Vetagro Sup, Campus Vétérinaire, 69280, Marcy L'étoile, France
| | - Olivier Crouzet
- Direction de La Recherche Et de L'Appui Scientifique, Office Français de La Biodiversité, Site de St-Benoist, 78610, Auffargis, France
| | | | - Michael Coeurdassier
- Laboratoire Chrono-Environnement, UMR 6249 CNRS/Université de Franche-Comté, 16 Route de Gray, F-25000, Besançon, France.
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3
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Mohanty B. Pesticides exposure and compromised fitness in wild birds: Focusing on the reproductive endocrine disruption. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 199:105800. [PMID: 38458691 DOI: 10.1016/j.pestbp.2024.105800] [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: 08/21/2023] [Revised: 12/11/2023] [Accepted: 01/19/2024] [Indexed: 03/10/2024]
Abstract
Exposure of pesticides to wildlife species, especially on the aspect of endocrine disruption is of great concern. Wildlife species are more at risk to harmful exposures to the pesticides in their natural habitat through diet and several other means. Species at a higher tropic level in the food chain are more susceptible to the deleterious effects due to sequential biomagnifications of the pesticides/metabolites. Pesticides directly affect fitness of the species in the wild causing reproductive endocrine disruption impairing the hormones of the gonads and thyroid glands as reproduction is under the influence of cross regulations of these hormones. This review presents a comprehensive compilation of important literatures on the impact of the current use pesticides in disruption of both the hypothalamic-pituitary-gonadal and hypothalamic-pituitary-thyroid axes particularly in birds addressing impacts on the reproductive impairments and overall fitness. In addition to the epidemiological studies, laboratory investigations those provide supportive evidences of the probable mechanisms of disruption in the wild also have been incorporated in this review. To accurately predict the endocrine-disruption of the pesticides as well as to delineate the risk associated with potential cumulative effects, studies are to be more focused on the environmentally realistic exposure dose, mixture pesticide exposures and transgenerational effects. In addition, strategic screening/appropriate methodologies have to be developed to reveal the endocrine disruption potential of the contemporary use pesticides. Demand for adequate quantitative structure-activity relationships and insilico molecular docking studies for timely validation have been highlighted.
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Bellot P, Bichet C, Brischoux F, Fritsch C, Hope SF, Quesnot A, Angelier F. Experimental investigation of the effect of tebuconazole on three biomarkers of innate immunity in the house sparrow (Passer domesticus). ECOTOXICOLOGY (LONDON, ENGLAND) 2024; 33:119-129. [PMID: 38244180 DOI: 10.1007/s10646-024-02732-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/08/2024] [Indexed: 01/22/2024]
Abstract
Triazoles are among the most widely used fungicides in the world due to their efficacy against fungal crop diseases and their broad spectrum of action. Intensive use of triazoles has resulted in residual contamination in different compartments of agroecosystems and exposes non-target species to potential sublethal effects. Triazoles are known to be immunomodulators in medicine and therapeutic treatments, but very little data is available on their potential effect on immune parameters of non-target vertebrate species living in agroecosystems. In this study, we experimentally examined the impact of tebuconazole on three immune biomarkers (haemagglutination titre (HA), haemolysis titre (HL), and haptoglobin concentration (Hp)), as well as on the body condition of house sparrows (Passer domesticus). Our results suggest that tebuconazole had very little, if any, effect on the studied immune parameters. However, further studies are needed to better assess the effect of tebuconazole on bird immunity because (1) experimental individuals were kept under optimal conditions and the impact of tebuconazole on immunity may occur under suboptimal conditions, (2) only one concentration of tebuconazole was tested and its effect could be dose-dependent and (3) other complementary immunological biomarkers should be studied, given the complexity of the vertebrate immune system. Current knowledge on the potential effects of triazoles on the immunity of wild farmland vertebrates is still largely insufficient. Further physiological and immune studies should be conducted to better understand the effect of triazole fungicides on farmland birds.
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Affiliation(s)
- Pauline Bellot
- Centre d'Etudes Biologiques de Chizé, CNRS, La Rochelle Université, UMR 7372, 79360, Villiers en Bois, France.
| | - Coraline Bichet
- Centre d'Etudes Biologiques de Chizé, CNRS, La Rochelle Université, UMR 7372, 79360, Villiers en Bois, France
| | - François Brischoux
- Centre d'Etudes Biologiques de Chizé, CNRS, La Rochelle Université, UMR 7372, 79360, Villiers en Bois, France
| | - Clémentine Fritsch
- Laboratoire Chrono-Environnement, UMR 6249 CNRS, Université de Franche-Comté, F-25000, Besançon, France
| | - Sydney F Hope
- Centre d'Etudes Biologiques de Chizé, CNRS, La Rochelle Université, UMR 7372, 79360, Villiers en Bois, France
- Department of Psychology, Hunter College, City University of New York, New York, NY, 10065, USA
| | - Alice Quesnot
- Centre d'Etudes Biologiques de Chizé, CNRS, La Rochelle Université, UMR 7372, 79360, Villiers en Bois, France
| | - Frédéric Angelier
- Centre d'Etudes Biologiques de Chizé, CNRS, La Rochelle Université, UMR 7372, 79360, Villiers en Bois, France
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Poliserpi MB, Brodeur JC. Behavioral and physiological changes in the passerine Agelaioides badius following the ingestion of coated seeds with imidacloprid in a 30-day experiment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167078. [PMID: 37717765 DOI: 10.1016/j.scitotenv.2023.167078] [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: 04/13/2023] [Revised: 09/05/2023] [Accepted: 09/12/2023] [Indexed: 09/19/2023]
Abstract
The wide use of neonicotinoid seed treatment represents a hazard for farmland birds that feed on treated seeds. This study aimed to characterize the long-term effects of the neonicotinoid imidacloprid (IMI) in the passerine grayish baywing (Agelaioides badius). The birds were fed ad libitum for 32 days only with seeds treated with 53.1 (Low, 11 % of LD50) and 514 (High, (112 % of LD50) mg IMI/kg seed; these concentrations representing respectively, 1.8 and 17.1 % of 3 g IMI/kg, an average application rate used to treat crop seeds in Argentina. The effects exerted by IMI on birds were evaluated at behavioral, physiological, hematological, genotoxic, and biochemical levels. No differences in food consumption were observed between Control and Low treatments birds, indicating a lack of aversion to treated seeds. High treatment birds only decreased their food consumption by 20 % in the first 3 days of exposure. Birds from High treatment experienced an early loss of body weight, reduction in their mobility, lack of response to threats (i.e., predator call and approaching person), and altered their use of the cage. On the contrary, birds from Low treatment experienced a delay in the onset of effects like reduction in mobility, lack of response to threats, and a tendency to reduce their body weight. At the end of exposure, glutathione S transferase activity in the plasma of treated birds decreased, and cholinesterase activity increased in the liver of treated birds. This study highlights that consumption equivalent to 1.8 % of the daily diet of baywings as IMI-treated seeds, is sufficient to generate behavioral and physiological alterations and death. In the wild, these effects may have ecological consequences, by impairing the survival of birds, representing a risk to farmland bird populations.
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Affiliation(s)
- Maria Belen Poliserpi
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), 1686 Hurlingham, Buenos Aires, Argentina.
| | - Julie Celine Brodeur
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), 1686 Hurlingham, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
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6
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Pandey SP, Mohanty B. Role of the testicular capsule in seasonal modulation of the testis. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART A, ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY 2023; 339:898-910. [PMID: 37528770 DOI: 10.1002/jez.2740] [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: 10/22/2022] [Revised: 07/11/2023] [Accepted: 07/18/2023] [Indexed: 08/03/2023]
Abstract
While the seasonal testicular cycle has been well studied regarding internal components, no attention has been given to the testicular capsule (tunica albuginea and tunica serosa). This study elucidated the structure-function modulations of intra-testicular functions by its capsule in the finch red munia (Amandava amandava) during the annual testicular cycle. The birds were studied during breeding (preparatory and breeding) and nonbreeding (regressive and quiescent) reproductive phases using hematoxylin-eosin and acridine orange-ethidium bromide capsule staining, hormonal ELISA (LH and testosterone) and immunohistochemical expression of neuropeptides (GnRH, GnIH) and androgen receptor (AR). The thickness of the tunica albuginea was significantly increased with multiple myoid layers during the nonbreeding phases (p < 0.05). The thickness of the tunica serosa was not altered, although characteristics and distribution of squamous cells showed significant seasonal alterations. Immunoreactive (-ir) AR and GnIH cells were differentially localized on both layers of the capsule. Strong AR-ir cells on tunica serosa during breeding phases showed increased expression of the receptor; a significant increase in plasma LH and testosterone was also observed during the breeding cycle (p < 0.01). Contrarily, intense GnIH-ir cells on both the capsular layers peaked during testicular regression. Differential structural alterations of the testicular capsule provide mechanical support and help maintain internal homeostasis in tune with changing seasons. The seasonal expressions and alterations of reproduction-related receptors, hormones, and neuropeptides provide evidence for the potential regulatory roles of the capsule in the peripheral modulation of intratesticular functions.
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Affiliation(s)
| | - Banalata Mohanty
- Department of Zoology, University of Allahabad, Prayagraj, Uttar Pradesh, India
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Gomes IN, Gontijo LM, Lima MAP, Zanuncio JS, Resende HC. The survival and flight capacity of commercial honeybees and endangered stingless bees are impaired by common agrochemicals. ECOTOXICOLOGY (LONDON, ENGLAND) 2023; 32:937-947. [PMID: 37733275 DOI: 10.1007/s10646-023-02699-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/13/2023] [Indexed: 09/22/2023]
Abstract
The impact of agrochemicals on native Brazilian bees may be underestimated, since studies of non-target effects on bees have, by and large, concerned mostly the Apis mellifera L. Furthermore, bees may be exposed in the field to multiple agrochemicals through different routes, thus suggesting the necessity for more comprehensive toxicological experiments. Here, we assessed the lethal and sublethal toxicity of multiple agrochemicals (herbicide [glyphosate - Roundup®], fungicide [mancozeb], insecticide [thiamethoxam]) through distinct routes of exposure (contact or ingestion) to an endangered native Brazilian bee Melipona (Michmelia) capixaba Moure & Camargo, 1994 and to A. mellifera. Results indicate that none of the agrochemicals caused feeding repellency on the bees. Thiamethoxam caused high mortality of both species, regardless of the route of exposure or the dose used. In addition, thiametoxam altered the flight capacity of M. capixaba when exposed to the lowest dose via contact exposure. The field dose of glyphosate caused high mortality of both bee species after oral exposure as well as impaired the flight capacity of A. mellifera (ingestion exposure) and M. capixaba (contact exposure). The lower dose of glyphosate also impaired the flight of M. capixaba through either routes of exposure. Exposure of A. mellifera through contact and ingestion to both doses of mancozeb caused high mortality and significantly impaired flight capacity. Taken altogether, the results highlight the importance of testing the impact of multiple agrochemicals (i.e. not just insecticides) through different routes of exposure in order to understand more comprehensively the potential risks for Apis and non-Apis bees.
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Affiliation(s)
- Ingrid N Gomes
- Programa de Pós Graduação em Manejo e Conservação de Ecossistemas Naturais e Agrários, Universidade Federal de Viçosa - Campus Florestal, Florestal, MG, Brazil.
- Laboratório de Genética da Conservação de Abelhas - LaBee. Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Viçosa, - Campus Florestal, Florestal, MG, Brazil.
- Centro de Síntese Ecológica e Conservação, Departamento de Genética Ecologia e Evolução - ICB, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
- Programa de Pós Graduação em Ecologia, Conservação e Manejo da Vida Silvestre, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Lessando Moreira Gontijo
- Programa de Pós Graduação em Manejo e Conservação de Ecossistemas Naturais e Agrários, Universidade Federal de Viçosa - Campus Florestal, Florestal, MG, Brazil
| | | | - José Salazar Zanuncio
- Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural-Incaper, Fazenda Experimental Mendes da Fonseca, Domingos Martins, ES, Brazil
| | - Helder Canto Resende
- Programa de Pós Graduação em Manejo e Conservação de Ecossistemas Naturais e Agrários, Universidade Federal de Viçosa - Campus Florestal, Florestal, MG, Brazil
- Laboratório de Genética da Conservação de Abelhas - LaBee. Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Viçosa, - Campus Florestal, Florestal, MG, Brazil
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Poliserpi MB, Noya Abad T, De Gerónimo E, Aparicio V, Brodeur JC. Behavioral and physiological response of the passerine bird Agelaioides badius to seeds coated with imidacloprid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:80293-80310. [PMID: 37294486 DOI: 10.1007/s11356-023-28074-y] [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: 10/17/2022] [Accepted: 05/30/2023] [Indexed: 06/10/2023]
Abstract
Neonicotinoids are globally used insecticides, and there are increasing evidence on their negative effects on birds. This study is aimed at characterizing the behavioral and physiological effects of the neonicotinoid imidacloprid (IMI) in a songbird. Adults of Agelaioides badius were exposed for 7 days to non-treated peeled millet and to peeled millet treated with nominal concentrations of 75 (IMI1) and 450 (IMI2) mg IMI/kg seed. On days 2 and 6 of the trial, the behavior of each bird was evaluated for 9 min by measuring the time spent on the floor, the perch, or the feeder. Daily millet consumption, initial and final body weight, and physiological, hematological, genotoxic, and biochemical parameters at the end of exposure were also measured. Activity was greatest on the floor, followed by the perch and the feeder. On the second day, birds exposed to IMI1and IMI2 remained mostly on the perch and the feeder, respectively. On the sixth day, a transition occurred to sectors of greater activity, consistent with the disappearance of the intoxication signs: birds from IMI1 and IMI2 increased their time on the floor and the perch, respectively. Control birds always remained most of the time on the floor. IMI2 birds significantly decreased their feed intake by 31% the first 3 days, compared to the other groups, and significantly decreased their body weight at the end of the exposure. From the set of hematological, genotoxic, and biochemical parameters, treated birds exhibited an alteration of glutathione-S-transferase activity (GST) in breast muscle; the minimal effects observed are probably related to the IMI administration regime. These results highlight that the consumption of less than 10% of the bird daily diet as IMI-treated seeds trigger effects at multiple levels that can impair bird survival.
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Affiliation(s)
- Maria Belen Poliserpi
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina.
| | - Tatiana Noya Abad
- Departamento de Química Biológica, IQUIBICEN, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
- Centro de Ciencias Naturales, Ambientales y Antropológicas (CCNAA), Universidad Maimónides, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Eduardo De Gerónimo
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Estación Experimental Agropecuaria Balcarce (EEA Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA), Ruta Nacional 226, Km. 73,5, Balcarce, Buenos Aires, Argentina
| | - Virginia Aparicio
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Estación Experimental Agropecuaria Balcarce (EEA Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA), Ruta Nacional 226, Km. 73,5, Balcarce, Buenos Aires, Argentina
| | - Julie Celine Brodeur
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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Bellot P, Brischoux F, Budzinski H, Dupont SM, Fritsch C, Hope SF, Michaud B, Pallud M, Parenteau C, Prouteau L, Rocchi S, Angelier F. Chronic exposure to tebuconazole alters thyroid hormones and plumage quality in house sparrows (Passer domesticus). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-28259-5. [PMID: 37365357 DOI: 10.1007/s11356-023-28259-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 06/10/2023] [Indexed: 06/28/2023]
Abstract
Triazoles belong to a family of fungicides that are ubiquitous in agroecosystems due to their widespread use in crops. Despite their efficiency in controlling fungal diseases, triazoles are also suspected to affect non-target vertebrate species through the disruption of key physiological mechanisms. Most studies so far have focused on aquatic animal models, and the potential impact of triazoles on terrestrial vertebrates has been overlooked despite their relevance as sentinel species of contaminated agroecosystems. Here, we examined the impact of tebuconazole on the thyroid endocrine axis, associated phenotypic traits (plumage quality and body condition) and sperm quality in wild-caught house sparrows (Passer domesticus). We experimentally exposed house sparrows to realistic concentrations of tebuconazole under controlled conditions and tested the impact of this exposure on the levels of thyroid hormones (T3 and T4), feather quality (size and density), body condition and sperm morphology. We found that exposure to tebuconazole caused a significant decrease in T4 levels, suggesting that this azole affects the thyroid endocrine axis, although T3 levels did not differ between control and exposed sparrows. Importantly, we also found that exposed females had an altered plumage structure (larger but less dense feathers) relative to control females. The impact of tebuconazole on body condition was dependent on the duration of exposure and the sex of individuals. Finally, we did not show any effect of exposure to tebuconazole on sperm morphology. Our study demonstrates for the first time that exposure to tebuconazole can alter the thyroid axis of wild birds, impact their plumage quality and potentially affect their body condition. Further endocrine and transcriptomic studies are now needed not only to understand the underlying mechanistic effects of tebuconazole on these variables, but also to further investigate their ultimate consequences on performance (i.e. reproduction and survival).
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Affiliation(s)
- Pauline Bellot
- Centre d'Etudes Biologiques de Chizé, UMR 7372, CNRS-La Rochelle Université, 79360, Villiers en Bois, France.
| | - François Brischoux
- Centre d'Etudes Biologiques de Chizé, UMR 7372, CNRS-La Rochelle Université, 79360, Villiers en Bois, France
| | - Hélène Budzinski
- CNRS-EPOC, UMR 5805, LPTC Research Group, University of Bordeaux, 33400, Talence, France
| | - Sophie M Dupont
- BOREA, MNHN, CNRS 8067, SU, IRD 207, UCN, UA, 97233, Schoelcher, Martinique, France
- LIENSs, UMR 7266 CNRS-La Rochelle Université, 2 Rue Olympe de Gouges, 17000, La Rochelle, France
| | - Clémentine Fritsch
- Laboratoire Chrono-Environnement, UMR 6249, CNRS/Université de Franche-Comté, F-25000, Besançon, France
| | - Sydney F Hope
- Centre d'Etudes Biologiques de Chizé, UMR 7372, CNRS-La Rochelle Université, 79360, Villiers en Bois, France
| | - Bruno Michaud
- Centre d'Etudes Biologiques de Chizé, UMR 7372, CNRS-La Rochelle Université, 79360, Villiers en Bois, France
| | - Marie Pallud
- Centre d'Etudes Biologiques de Chizé, UMR 7372, CNRS-La Rochelle Université, 79360, Villiers en Bois, France
| | - Charline Parenteau
- Centre d'Etudes Biologiques de Chizé, UMR 7372, CNRS-La Rochelle Université, 79360, Villiers en Bois, France
| | - Louise Prouteau
- CNRS-EPOC, UMR 5805, LPTC Research Group, University of Bordeaux, 33400, Talence, France
| | - Steffi Rocchi
- Laboratoire Chrono-Environnement, UMR 6249, CNRS/Université de Franche-Comté, F-25000, Besançon, France
| | - Frédéric Angelier
- Centre d'Etudes Biologiques de Chizé, UMR 7372, CNRS-La Rochelle Université, 79360, Villiers en Bois, France
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10
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Mendonça-Soares S, Fortuna M, Freddo N, Varela ACC, Pompermaier A, Mozzato MT, Costa VC, Tamagno WA, Rossato-Grando LG, Barcellos LJG. Behavioral, biochemical, and endocrine responses of zebrafish to 30-min exposure with environmentally relevant concentrations of imidacloprid-based insecticide. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27667-x. [PMID: 37195604 DOI: 10.1007/s11356-023-27667-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 05/11/2023] [Indexed: 05/18/2023]
Abstract
The imidacloprid-based insecticides (IBIs) are among the most used insecticides worldwide, and chronic and acute toxic effects (days exposure protocols) have been reported in several species in studies of IBIs at lethal concentrations. However, there is little information on shorter time exposures and environmentally relevant concentrations. In this study, we investigated the effect of a 30-min exposure to environmentally relevant concentrations of IBI on the behavior, redox status, and cortisol levels of zebrafish. We showed that the IBI decreased fish locomotion and social and aggressive behaviors and induced an anxiolytic-like behavior. Furthermore, IBI increased cortisol levels and protein carbonylation and decreased nitric oxide levels. These changes were mostly observed at 0.013 and 0.0013 µg·L-1 of IBI. In an environmental context, these behavioral and physiological disbalances, which were immediately triggered by IBI, can impair the ability of fish to evade predators and, consequently, affect their survival.
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Affiliation(s)
- Suelen Mendonça-Soares
- Programa de Pós-Graduação Em Farmacologia, Universidade Federal de Santa Maria, Avenida Roraima, Bairro Camobi, Santa Maria, Rio Grande Do Sul, Brazil
| | - Milena Fortuna
- Programa de Pós-Graduação Em Farmacologia, Universidade Federal de Santa Maria, Avenida Roraima, Bairro Camobi, Santa Maria, Rio Grande Do Sul, Brazil
| | - Natália Freddo
- Programa de Pós-Graduação Em Bioexperimentação, Universidade de Passo Fundo, Bairro São José, Passo Fundo, Rio Grande Do Sul, Brazil
| | - Amanda Carolina Cole Varela
- Programa de Pós-Graduação Em Farmacologia, Universidade Federal de Santa Maria, Avenida Roraima, Bairro Camobi, Santa Maria, Rio Grande Do Sul, Brazil
| | - Aline Pompermaier
- Programa de Pós-Graduação Em Bioexperimentação, Universidade de Passo Fundo, Bairro São José, Passo Fundo, Rio Grande Do Sul, Brazil
| | - Mateus Timbola Mozzato
- Curso de Medicina Veterinária, Universidade de Passo Fundo, Bairro São José, Passo Fundo, Rio Grande Do Sul, Brazil
| | - Vitória Cadore Costa
- Curso de Medicina Veterinária, Universidade de Passo Fundo, Bairro São José, Passo Fundo, Rio Grande Do Sul, Brazil
| | - Wagner Antonio Tamagno
- Programa de Pós-Graduação Em Farmacologia, Universidade Federal de Santa Maria, Avenida Roraima, Bairro Camobi, Santa Maria, Rio Grande Do Sul, Brazil
| | - Luciana Grazziotin Rossato-Grando
- Programa de Pós-Graduação Em Bioexperimentação, Universidade de Passo Fundo, Bairro São José, Passo Fundo, Rio Grande Do Sul, Brazil
| | - Leonardo José Gil Barcellos
- Programa de Pós-Graduação Em Farmacologia, Universidade Federal de Santa Maria, Avenida Roraima, Bairro Camobi, Santa Maria, Rio Grande Do Sul, Brazil.
- Programa de Pós-Graduação Em Bioexperimentação, Universidade de Passo Fundo, Bairro São José, Passo Fundo, Rio Grande Do Sul, Brazil.
- Curso de Medicina Veterinária, Universidade de Passo Fundo, Bairro São José, Passo Fundo, Rio Grande Do Sul, Brazil.
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11
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Farag MR, Zizzadoro C, Alagawany M, Abou-Zeid SM, Mawed SA, El Kholy MS, Di Cerbo A, Azzam MM, Mahdy EAA, Khedr MHE, Elhady WM. In ovo protective effects of chicoric and rosmarinic acids against Thiacloprid-induced cytotoxicity, oxidative stress, and growth retardation on newly hatched chicks. Poult Sci 2023; 102:102487. [PMID: 36739798 PMCID: PMC9932119 DOI: 10.1016/j.psj.2023.102487] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/27/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023] Open
Abstract
Thiacloprid (TH) is a neonicotinoid insecticide employed in agriculture to protect fruits and vegetables against different insects. It showed different deleterious effects on the general health of non-target organisms including birds and animals, however, its developmental toxicity has yet to be fully elucidated. Chicoric (CA) and rosmarinic (RA) acids are polyphenolic compounds with a wide range of beneficial biological activities. In this study, the possible protective effects of CA and RA were investigated in chick embryos exposed in ovo to TH (1µg/egg) with or without CA (100 µg/egg) or RA (100 µg/egg) co-exposure. TH reduced the hatchling body weight, body weight/egg weight, and relative weight of bursa of Fabricius in the one-day-old hatchlings. Examination of the 7-day-old chicks revealed a decline in feed intake, daily weight gain, feed conversion ratio (FCR), and plasma levels of T3, T4, and growth hormone. Serum ALT, AST activities, and total cholesterol levels showed significant elevations. Hepatic MDA was increased with a reduction in SOD activity and GSH level and downregulation of the liver SOD and GST gene expression pattern. Serum IgG and IgM levels were reduced, and various histopathological alterations were noticed in the liver. Co-administration of CA or RA with TH mitigated the toxic effects on hatchlings. When both CA and RA are combined, they present a synergistic protective effect. CA and RA can be used as protective agents against TH toxicity as they improve growth performance and have hepatoprotective and immunostimulant effects in newly hatched chicks.
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Affiliation(s)
- Mayada R Farag
- Forensic Medicine and Toxicology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Claudia Zizzadoro
- Department of Veterinary Medicine, University of Bari, 70010, Valenzano, Italy
| | - Mahmoud Alagawany
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, 44519, Egypt.
| | - Shimaa M Abou-Zeid
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, University of Sadat City, Sadat City, 6012201, Egypt
| | - Suzan Attia Mawed
- Zoology Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt
| | - Mohamed S El Kholy
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, 44519, Egypt
| | - Alessandro Di Cerbo
- School of Biosciences and Veterinary Medicine, University of Camerino, 62024, Matelica, Italy
| | - Mahmoud M Azzam
- Department of Animal Production College of Food & Agriculture Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Eman A A Mahdy
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, Zagazig University, 44511, Egypt
| | - Mariam H E Khedr
- Veterinary Public Health Department, Faculty of Veterinary Medicine, Zagazig University, 44511, Egypt
| | - Walaa M Elhady
- Forensic Medicine and Toxicology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt
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12
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Sokan-Adeaga AA, Sokan-Adeaga MA, Sokan-Adeaga ED, Oparaji AN, Edris H, Tella EO, Balogun FA, Aledeh M, Amubieya OE. Environmental toxicants and health adversities: A review on interventions of phytochemicals. J Public Health Res 2023; 12:22799036231181226. [PMID: 37440795 PMCID: PMC10334012 DOI: 10.1177/22799036231181226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 04/28/2023] [Indexed: 07/15/2023] Open
Abstract
Toxicity arising from environmental contaminants has attracted global interest in the last few decades, due to the high morbidity and mortality associated with them. Efforts have been made to combat the consequential outcomes of environmental toxicity in humans through traditional remediation techniques and therapeutic measures which have been hampered by one or more limitations. Consequently, this scenario has triggered interest in the medicinal properties of phytochemicals. Thus, this review gives a succinct and in-depth elucidation of the various environmental contaminants and their toxicity effects on humans. It delves into the various classes of phytochemicals and their intervention roles. The study adopted a desk review of existing literatures from scientific reports and peer reviewed articles through triangulation of data sources. "Phytochemicals" are group of secondary metabolites obtained from plants with medicinal properties. These groups of compounds are included but not limited to flavonoids, tannins, saponins, alkaloids, cardenoloids, terpenoids, and phytosteroids. This review corroborates the prophylactic and therapeutics efficacy of these phytochemicals as anti-metastatic, anti-inflammatory, anti-aging, anti-oxidant, anti-microbial and live saving substances with empirical findings from several laboratory, clinical trials and epidemiologic studies. It conclude that given the wide range of medicinal properties of phytochemicals, there is an urgent need for its full optimization in the pharmaceutical industry and future studies should focus on identifying the bioactive molecules in these compounds and its effectiveness against mixer toxicity.
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Affiliation(s)
- Adewale Allen Sokan-Adeaga
- Department of Environmental Health
Science, Faculty of Public Health, College of Medicine, Lead City University,
Ibadan, Nigeria
| | - Micheal Ayodeji Sokan-Adeaga
- Department of Community Health and
Primary Health Care, Faculty of Clinical Sciences, College of Medicine, University
of Lagos, Lagos, Nigeria
| | - Eniola Deborah Sokan-Adeaga
- Department of Physiology, Faculty of
Basic Medical Sciences, College of Medicine, Ladoke Akintola University of
Technology (LAUTECH), Ogbomosho, Oyo State, Nigeria
| | | | - Hoseinzadeh Edris
- Incubation and Innovation Center, Saveh
University of Medical Sciences, Saveh, Iran
| | - Esther Oluwabukunola Tella
- Department of Environmental Health
Science, Faculty of Public Health, College of Medicine, Lead City University,
Ibadan, Nigeria
| | - Francis Adeniyi Balogun
- Department of Community Health, Faculty
of Public Health, College of Medicine, Lead City University, Ibadan, Nigeria
| | - Muhammad Aledeh
- College of Health, Psychology and
Social Care, University of Derby, Derby, United Kingdom
- Wiener Gesundheitsverbund, Psychiatric
Department, Klinik Donaustadt, Vienna, Austria
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13
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Veiga-Del-Baño JM, Martínez-López S, Pérez-Lucas G, Cuenca-Martínez JJ, Andreo-Martínez P. Trends in dithiocarbamates food research: A bibliometric vision. CHEMOSPHERE 2023; 313:137342. [PMID: 36435325 DOI: 10.1016/j.chemosphere.2022.137342] [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: 07/11/2022] [Revised: 11/18/2022] [Accepted: 11/19/2022] [Indexed: 06/16/2023]
Abstract
Dithiocarbamate Fungicides (DTFs) are widely analyzed and studied mainly due to the fact that they play an important role in the cultivation of fruits and vegetables. This manuscript aims to display the results of a bibliometric analysis based on the Web of Science© database, performed in the DTF and food research area. A total of 374 publications were examined. The most scientific production was concentrated between 2012 and 2021, showing a decrease of 32% over the last two years. The Journal of Agricultural and Food Chemistry, India, and Sardar Vallabhbhai National Institute of Technology were the most productive journal, country, and institution, respectively. Reference Publication Year Spectroscopy index showed a decrease of 95% in the last last years studied. Finally, current and future trends should focus on keywords such as individual DTF (Mancozeb, Thiram and Maneb), metabolites (Ethylenethiourea, Propilenthiourea) and a change in the analysis methodology: HPLC versus traditional GC.
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Affiliation(s)
- José Manuel Veiga-Del-Baño
- Department of Agricultural Chemistry, Faculty of Chemistry, University of Murcia, Campus of Espinardo, 30100, Murcia, Spain
| | - Salvadora Martínez-López
- Department of Agricultural Chemistry, Faculty of Chemistry, University of Murcia, Campus of Espinardo, 30100, Murcia, Spain
| | - Gabriel Pérez-Lucas
- Department of Agricultural Chemistry, Faculty of Chemistry, University of Murcia, Campus of Espinardo, 30100, Murcia, Spain
| | - Juan José Cuenca-Martínez
- Department of Agricultural Chemistry, Faculty of Chemistry, University of Murcia, Campus of Espinardo, 30100, Murcia, Spain
| | - Pedro Andreo-Martínez
- Department of Agricultural Chemistry, Faculty of Chemistry, University of Murcia, Campus of Espinardo, 30100, Murcia, Spain.
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14
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Bose S, Senthil Kumar P, Rangasamy G, Prasannamedha G, Kanmani S. A review on the applicability of adsorption techniques for remediation of recalcitrant pesticides. CHEMOSPHERE 2023; 313:137481. [PMID: 36529165 DOI: 10.1016/j.chemosphere.2022.137481] [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: 09/15/2022] [Revised: 11/22/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Pesticide has revolutionised the agricultural industry by reducing yield losses and by enhancing productivity. But indiscriminate usage of such chemicals can negatively impact human health and ecosystem balance as certain pesticides can be recalcitrant in nature. Out of some of the suggested sustainable techniques to remove the pesticide load from the environment, adsorption is found to be highly efficient and can also be implemented on a large scale. It has been observed that natural adsorption that takes place after the application of the pesticide is not enough to reduce the pesticide load, hence, adsorbents like activated carbon, plant-based adsorbents, agricultural by-products, silica materials, polymeric adsorbents, metal organic framework etc are being experimented upon. It is becoming increasingly important to choose adsorbents which will not leave any secondary pollutant after treatment and the cost of production of such adsorbent should be feasible. In this review paper, it has been established that certain adsorbent like biochar, hydrochar, resin, metal organic framework etc can efficiently remove pesticides namely chlorpyrifos, diazinon, 2,4-Dichlorophenoxyacetic Acid, atrazine, fipronil, imidacloprid etc. The mechanism of adsorption, thermodynamics and kinetic part have been discussed in detail with respect to the pesticide and adsorbent under discussion. The reason behind choosing an adsorbent for the removal of a particular pesticide have also been explained. It is further highly recommended to carry out a cost analysis before implementing an absorbent because inspite of its efficacy, it might not be cost effective to use it for a particular type of pesticide or contaminant.
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Affiliation(s)
- Sanchali Bose
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
| | - Gayathri Rangasamy
- Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - G Prasannamedha
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India
| | - S Kanmani
- Centre for Environmental Studies, Department of Civil Engineering, Anna University, Chennai, 600025, India
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15
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Fonseca Peña SVD, Natale GS, Brodeur JC. Toxicity of the neonicotinoid insecticides thiamethoxam and imidacloprid to tadpoles of three species of South American amphibians and effects of thiamethoxam on the metamorphosis of Rhinella arenarum. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2022; 85:1019-1039. [PMID: 36424857 DOI: 10.1080/15287394.2022.2147113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The present study examined the acute and chronic toxicity of the neonicotinoid insecticides imidacloprid (IMI) and thiamethoxam (TIA) on the neotropical amphibian species Rhinella arenarum, Rhinella fernandezae and Scinax granulatus. The median lethal concentration after 96 hr exposure (96 hr-LC50) ranged between 11.28 and >71.2 mg/L amongst all species and development stages tested, indicating that these pesticides are not likely to produce acute toxicity in the wild. The subchronic toxicity was also low, with 21 day-LC50 values ranging between 27.15 and >71.2 mg/L. However, tadpoles of Rhinella arenarum exposed to thiamethoxam from stage 27 until completion of metamorphosis presented a significantly lower metamorphic success rate together with a smaller size at metamorphosis, starting from the lowest concentration tested. Although a number of studies previously examined the effects of neonicotinoids on amphibian tadpoles, these investigations focused on the time to metamorphosis and reported a variety of results including retardation, acceleration or lack of effect. Here, data demonstrated that thiamethoxam predominantly impacts metamorphosis through reduction of the transformation success and body weight, rather than by affecting the timings of metamorphosis. By closely monitoring progression of tadpoles through the different stages, impairment of metamorphosis was demonstrated to occur during the transition from stage 39 to 42, suggesting an effect on the thyroid system. An asymmetry in the length of the arms was also observed in metamorphs treated with thiamethoxam. Overall, these results indicate that thiamethoxam, and conceivably other neonicotinoids, have the potential to significantly impair metamorphosis of amphibians and diminish their performance and survival in the wild.
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Affiliation(s)
- Shirley Vivian Daniela Fonseca Peña
- Instituto de Recursos Biológicos Centro de Investigaciones de Recursos Naturales (CIRN) Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Guillermo Sebastián Natale
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
- Centro de Investigaciones del Medio Ambiente (CIM) Departamento de Química, Facultad de Ciencias Exactas Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Julie Céline Brodeur
- Instituto de Recursos Biológicos Centro de Investigaciones de Recursos Naturales (CIRN) Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
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16
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Egalini F, Marinelli L, Rossi M, Motta G, Prencipe N, Rossetto Giaccherino R, Pagano L, Grottoli S, Giordano R. Endocrine disrupting chemicals: effects on pituitary, thyroid and adrenal glands. Endocrine 2022; 78:395-405. [PMID: 35604630 PMCID: PMC9637063 DOI: 10.1007/s12020-022-03076-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/08/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND In recent years, scientific research has increasingly focused on Endocrine Disrupting Chemicals (EDCs) and demonstrated their relevant role in the functional impairment of endocrine glands. This induced regulatory authorities to ban some of these compounds and to carefully investigate others in order to prevent EDCs-related conditions. As a result, we witnessed a growing awareness and interest on this topic. AIMS This paper aims to summarize current evidence regarding the detrimental effects of EDCs on pivotal endocrine glands like pituitary, thyroid and adrenal ones. Particularly, we directed our attention on the known and the hypothesized mechanisms of endocrine dysfunction brought by EDCs. We also gave a glimpse on recent findings from pioneering studies that could in the future shed a light on the pathophysiology of well-known, but poorly understood, endocrine diseases like hormone-producing adenomas. CONCLUSIONS Although intriguing, studies on endocrine dysfunctions brought by EDCs are challenging, in particular when investigating long-term effects of EDCs on humans. However, undoubtedly, it represents a new intriguing field of science research.
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Affiliation(s)
- Filippo Egalini
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy.
| | - Lorenzo Marinelli
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Mattia Rossi
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Giovanna Motta
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Nunzia Prencipe
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Ruth Rossetto Giaccherino
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Loredana Pagano
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Silvia Grottoli
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
| | - Roberta Giordano
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Corso Dogliotti 14, 10126, Turin, Italy
- Department of Biological and Clinical Science, University of Turin, Regione Gonzole 10, 10043, Orbassano (TO), Italy
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17
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Deng N, Lv Y, Bing Q, Li S, Han B, Jiang H, Yang Q, Wang X, Wu P, Liu Y, Zhang Z. Inhibition of the Nrf2 signaling pathway involved in imidacloprid-induced liver fibrosis in Coturnix japonica. ENVIRONMENTAL TOXICOLOGY 2022; 37:2354-2365. [PMID: 35716027 DOI: 10.1002/tox.23601] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/01/2022] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Imidacloprid (IMI) is a kind of widely used neonicotinoid insecticide. However, the toxicity of IMI is not only applied to target pests but also causes serious negative effects on birds and other creatures. Our previous studies have shown that long-term exposure to IMI can induce liver fibrosis in quails. However, the specific mechanism of quail liver fibrosis induced by IMI is not completely clear. Accordingly, the purpose of this study is to further clarify the potential molecular mechanism of IMI-induced liver fibrosis in quails. Japanese quails (Coturnix japonica) were treated with/without IMI (intragastric administration with 6 mg/kg body weight) in the presence/absence of luteolin (Lut) (fed with 800 mg/kg) for 90 days. The results reveal that IMI can induce hepatic fibrosis, oxidative stress, fatty degeneration, inflammation, and the down-expression of nuclear factor-E2-related factor-2 (Nrf2). Furthermore, the treatment of Lut, a kind of Nrf2 activator, increased the expression of Nrf2 in livers and alleviated liver fibrosis in quails. Altogether, our study demonstrates that inhibition of the Nrf2 pathway is the key to liver fibrosis induced by IMI in quails. These results provide a new understanding for the study of the toxicity of IMI and a practical basis for the treatment of liver fibrosis caused by IMI.
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Affiliation(s)
- Ning Deng
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yueying Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
- Department of Laboratory Animal Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qizheng Bing
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Siyu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Bing Han
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Huijie Jiang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Qingyue Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xiaoqiao Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Pengfei Wu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yan Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- College of Life Sciences and Food Engineering, Inner Mongolia Minzu University, Tongliao, China
| | - Zhigang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
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18
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Moreau J, Rabdeau J, Badenhausser I, Giraudeau M, Sepp T, Crépin M, Gaffard A, Bretagnolle V, Monceau K. Pesticide impacts on avian species with special reference to farmland birds: a review. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:790. [PMID: 36107257 DOI: 10.1007/s10661-022-10394-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
For decades, we have observed a major biodiversity crisis impacting all taxa. Avian species have been particularly well monitored over the long term, documenting their declines. In particular, farmland birds are decreasing worldwide, but the contribution of pesticides to their decline remains controversial. Most studies addressing the effects of agrochemicals are limited to their assessment under controlled laboratory conditions, the determination of lethal dose 50 (LD50) values and testing in a few species, most belonging to Galliformes. They often ignore the high interspecies variability in sensitivity, delayed sublethal effects on the physiology, behaviour and life-history traits of individuals and their consequences at the population and community levels. Most importantly, they have entirely neglected to test for the multiple exposure pathways to which individuals are subjected in the field (cocktail effects). The present review aims to provide a comprehensive overview for ecologists, evolutionary ecologists and conservationists. We aimed to compile the literature on the effects of pesticides on bird physiology, behaviour and life-history traits, collecting evidence from model and wild species and from field and lab experiments to highlight the gaps that remain to be filled. We show how subtle nonlethal exposure might be pernicious, with major consequences for bird populations and communities. We finally propose several prospective guidelines for future studies that may be considered to meet urgent needs.
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Affiliation(s)
- Jérôme Moreau
- Équipe Écologie Évolutive, UMR CNRS 6282 Biogéosciences, Université Bourgogne Franche-Comté, Dijon, France
- UMR CNRS 7372 Centre d'Études Biologiques de Chizé, La Rochelle Université, 79360, Villiers-en-Bois, France
| | - Juliette Rabdeau
- UMR CNRS 7372 Centre d'Études Biologiques de Chizé, La Rochelle Université, 79360, Villiers-en-Bois, France
| | - Isabelle Badenhausser
- Unité de Recherche Pluridisciplinaire Prairies Plantes Fourragères, INRAE, 86600, Lusignan, France
| | - Mathieu Giraudeau
- UMR IRD, CREEC, Université de Montpellier, 224-CNRS 5290, Montpellier, France
- Centre de Recherche en Écologie Et Évolution de La Sante (CREES), Montpellier, France
- Littoral Environnement Et Sociétés (LIENSs), UMR 7266, CNRS- La Rochelle Université, La Rochelle, France
| | - Tuul Sepp
- Department of Zoology, University of Tartu, Tartu, Estonia
| | - Malaury Crépin
- UMR CNRS 7372 Centre d'Études Biologiques de Chizé, La Rochelle Université, 79360, Villiers-en-Bois, France
| | - Agathe Gaffard
- UMR CNRS 7372 Centre d'Études Biologiques de Chizé, La Rochelle Université, 79360, Villiers-en-Bois, France
| | - Vincent Bretagnolle
- UMR CNRS 7372 Centre d'Études Biologiques de Chizé, La Rochelle Université, 79360, Villiers-en-Bois, France
- LTSER "Zone Atelier Plaine & Val de Sèvre", CNRS, 79360, Villiers-en-Bois, France
| | - Karine Monceau
- UMR CNRS 7372 Centre d'Études Biologiques de Chizé, La Rochelle Université, 79360, Villiers-en-Bois, France.
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19
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Drovetski SV, Schmidt BK, Lai JE, Gross MS, Hladik ML, Matterson KO, Karouna-Renier NK. Exposure to crop production alters cecal prokaryotic microbiota, inflates virulome and resistome in wild prairie grouse. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 306:119418. [PMID: 35526643 DOI: 10.1016/j.envpol.2022.119418] [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: 12/14/2021] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 06/14/2023]
Abstract
Chemically intensive crop production depletes wildlife food resources, hinders animal development, health, survival, and reproduction, and it suppresses wildlife immune systems, facilitating emergence of infectious diseases with excessive mortality rates. Gut microbiota is crucial for wildlife's response to environmental stressors. Its composition and functionality are sensitive to diet changes and environmental pollution associated with modern crop production. In this study we use shotgun metagenomics (median 8,326,092 sequences/sample) to demonstrate that exposure to modern crop production detrimentally affects cecal microbiota of sharp-tailed grouse (Tympanuchus phasianellus: 9 exposed, 18 unexposed and greater prairie chickens (T. cupido; 11, 11). Exposure to crop production had greater effect on microbiota richness (t = 6.675, P < 0.001) and composition (PERMANOVA r2 = 0.212, P = 0.001) than did the host species (t = 4.762, P < 0.001; r2 = 0.070, P = 0.001) or their interaction (t = 3.449; r2 = 0.072, both P = 0.001), whereas sex and age had no effect. Although microbiota richness was greater in exposed (T. cupido chao1 = 152.8 ± 20.5; T. phasianellus 115.3 ± 17.1) than in unexposed (102.9 ± 15.1 and 101.1 ± 17.2, respectively) birds, some beneficial bacteria dropped out of exposed birds' microbiota or declined and were replaced by potential pathogens. Exposed birds also had higher richness and load of virulome (mean ± standard deviation; T. cupido 24.8 ± 10.0 and 10.1 ± 5.5, respectively; T. phasianellus 13.4 ± 6.8/4.9 ± 2.8) and resistome (T. cupido 46.8 ± 11.7/28.9 ± 10.2, T. phasianellus 38.3 ± 16.7/18.9 ± 14.2) than unexposed birds (T. cupido virulome: 14.2 ± 13.5, 4.5 ± 4.2; T. cupido resistome: 31.6 ± 20.2 and 13.1 ± 12.0; T. phasianellus virulome: 5.2 ± 4.7 and 1.4 ± 1.5; T. phasianellus resistome: 13.7 ± 16.1 and 4.0 ± 6.4).
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Affiliation(s)
- Serguei V Drovetski
- U.S. Geological Survey, Eastern Ecological Science Center at the Patuxent Research Refuge, Beltsville, MD, 20705, USA.
| | - Brian K Schmidt
- Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC, 20013, USA.
| | - Jonas E Lai
- U.S. Geological Survey, Eastern Ecological Science Center at the Patuxent Research Refuge, Beltsville, MD, 20705, USA.
| | - Michael S Gross
- U.S. Geological Survey, California Water Science Center, Sacramento, CA, 95819, USA.
| | - Michelle L Hladik
- U.S. Geological Survey, California Water Science Center, Sacramento, CA, 95819, USA.
| | - Kenan O Matterson
- U.S. Geological Survey, Eastern Ecological Science Center at the Patuxent Research Refuge, Beltsville, MD, 20705, USA.
| | - Natalie K Karouna-Renier
- U.S. Geological Survey, Eastern Ecological Science Center at the Patuxent Research Refuge, Beltsville, MD, 20705, USA.
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20
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Yuanyuan Z, Zhixing R, Hao Y, Yu L. A novel multi-criteria framework for optimizing ecotoxicological effects and human health risks of neonicotinoid insecticides: Characterization, assessment and regulation strategies. JOURNAL OF HAZARDOUS MATERIALS 2022; 432:128712. [PMID: 35316637 DOI: 10.1016/j.jhazmat.2022.128712] [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: 01/30/2022] [Revised: 03/08/2022] [Accepted: 03/13/2022] [Indexed: 06/14/2023]
Abstract
The rapid increase of neonicotinoid insecticides (NNIs) leads to the resistance to target organisms and risks to non-target organisms in the ecosystem. Thus, we designed a multi-criteria framework for resistance to target organisms, exposure risks to non-target organisms under spraying and soil or seed treatment scenarios, and ruled out the NNIs on the priority control lists. The resistance and cross-resistance, as well as the toxicity (i.e., acute, chronic, and combined toxicities) were characterized and evaluated. Results showed that the cross-resistance between two NNIs (i.e., CLO and FLU) was 1.8 times higher than their single resistance. A medium to extra-high toxicity level of NNIs was found in non-target organisms. Regulation strategies for NNIs resistance and toxicity were also proposed. The best synergist blocking and control scheme for resistance and toxicity was screened out when three main synergists (i.e., TPP: DEM: PBO) with the ratio of 1:1:1. Four NNIs (i.e., NPM, IMI, ACE, TMX) used in grain crops and six NNIs (i.e., NPM, IMI, ACE, TMX, CLO, THI) used in vegetable crops were determined as the ruled-out pesticides on the priority control lists. This study highlights the adverse effects of NNIs on the ecosystem and human health which should not be overlooked.
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Affiliation(s)
- Zhao Yuanyuan
- MOE Key Laboratory of Resources and Environmental Systems Optimization, North China Electric Power University, Beijing 102206, China.
| | - Ren Zhixing
- College of Forestry, Northeast Forestry University, Harbin 150040, China.
| | - Yang Hao
- MOE Key Laboratory of Resources and Environmental Systems Optimization, North China Electric Power University, Beijing 102206, China.
| | - Li Yu
- MOE Key Laboratory of Resources and Environmental Systems Optimization, North China Electric Power University, Beijing 102206, China.
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21
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Distefano GG, Zangrando R, Basso M, Panzarin L, Gambaro A, Volpi Ghirardini A, Picone M. The ubiquity of neonicotinoid contamination: Residues in seabirds with different trophic habits. ENVIRONMENTAL RESEARCH 2022; 206:112637. [PMID: 34973939 DOI: 10.1016/j.envres.2021.112637] [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: 10/08/2021] [Revised: 12/26/2021] [Accepted: 12/26/2021] [Indexed: 06/14/2023]
Abstract
Neonicotinoids are one of the most diffusely used classes of pesticides whose level of danger toward non-target invertebrate and vertebrate species has raised increasing concern in the last decades. Among vertebrates, birds are particularly susceptible to unintentional neonicotinoid poisoning since they can be exposed through different pathways, including ingestion of dressed seeds, sucking of contaminated pollen, ingestion of sprayed insects, predation on contaminated aquatic and terrestrial preys. In the present study, we investigated the possible exposure of seabirds by measuring the residues of five neonicotinoids (acetamiprid, clothianidin, imidacloprid, thiacloprid and thiamethoxam) in samples of pooled feathers collected from fledglings of the strictly piscivorous Sandwich tern (Thalasseus sandvicensis) and the mixotrophic species Mediterranean gull (Ichthyaetus melanocephalus). At least one neonicotinoid was quantified in all the Mediterranean gull samples (n = 11) and 89% of the analysed Sandwich tern samples (n = 36). The active principles with the highest quantification rates were imidacloprid (100% in Mediterranean gulls and 58% in Sandwich terns) and clothianidin (100% in Mediterranean gulls and 61% in Sandwich terns), while thiacloprid was the less frequently detected pesticide (<20% of samples in both species). Mean concentrations ± standard error for imidacloprid, clothianidin and thiamethoxam were 8.8 ± 1.4, 4.5 ± 0.19 and 0.16 ± 0.02 ng g-1 for the Mediterranean gull, and 5.8 ± 0.55, 0.60 ± 0.08 and 0.36 ± 0.03 ng g-1for the Sandwich tern, respectively. Our data evidenced the exposure of seabirds to neonicotinoids and the further need to investigate the extent of neonicotinoid contamination in non-agricultural ecosystems.
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Affiliation(s)
- Gabriele Giuseppe Distefano
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari, Campus Scientifico via Torino 155, I-30170, Mestre, Venezia, Italy
| | - Roberta Zangrando
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari, Campus Scientifico via Torino 155, I-30170, Mestre, Venezia, Italy; Istituto di Scienze Polari (ISP), Consiglio Nazionale delle Ricerche, Via Torino 155, I-30170 Mestre, Venezia, Italy
| | | | - Lucio Panzarin
- Associazione Naturalistica Sandonatese, c/o Centro Didattico Naturalistico il Pendolino, via Romanziol 130, 30020, Noventa di Piave, Venezia, Italy
| | - Andrea Gambaro
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari, Campus Scientifico via Torino 155, I-30170, Mestre, Venezia, Italy
| | - Annamaria Volpi Ghirardini
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari, Campus Scientifico via Torino 155, I-30170, Mestre, Venezia, Italy
| | - Marco Picone
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari, Campus Scientifico via Torino 155, I-30170, Mestre, Venezia, Italy.
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22
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Cheron M, Costantini D, Brischoux F. Nicosulfuron, a sulfonylurea herbicide, alters embryonic development and oxidative status of hatchlings at environmental concentrations in an amphibian species. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 232:113277. [PMID: 35123186 DOI: 10.1016/j.ecoenv.2022.113277] [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: 12/09/2021] [Revised: 01/27/2022] [Accepted: 01/30/2022] [Indexed: 06/14/2023]
Abstract
The widespread use of agrochemicals for controlling pests and diseases of crops is recognized as a main threat to biodiversity. Sulfonylurea herbicides are being increasingly used and display low levels of degradation in water which suggest that they might affect non-target organisms. In a common garden experiment, eggs of a widespread amphibian (Bufo spinosus) were exposed to sublethal environmentally relevant concentrations of a widely used sulfonylurea herbicide, nicosulfuron, during the whole embryonic development. We assessed development-related traits (i.e., development duration, hatching success, hatchling size and occurrence of malformation) as well as antioxidant markers in response to contamination (i.e., SOD, GPx, catalase, thiols and relevant ratios thereof). We found that sublethal concentrations of nicosulfuron increased embryonic development duration, increased hatchling size and tended to increase malformations. Embryos exposed to nicosulfuron displayed decreased thiols and increased catalase activity suggesting alteration of oxidative status. We did not find any effect of nicosulfuron on SOD and GPx levels. Interestingly, higher catalase activity was linked to higher proportion of malformed individuals, suggesting that exposure to nicosulfuron induced teratogenic effects. Our results suggest that alteration of antioxidant levels might be one physiological mechanism through which nicosulfuron might cause detrimental effects on amphibian embryos. Sublethal effects of pesticides at environmentally relevant concentrations have been overlooked and require further investigations, especially in non-target taxa occurring in agricultural landscapes.
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Affiliation(s)
- Marion Cheron
- Centre d'Études Biologiques de Chizé, CEBC-CNRS UMR 7372, 79360 Villiers en Bois, France.
| | - David Costantini
- Unité Physiologie Moléculaire et Adaptation (PhyMA), UMR 7221 Muséum National d'Histoire Naturelle, CNRS, CP32, 7 Rue Cuvier, Paris, France
| | - François Brischoux
- Centre d'Études Biologiques de Chizé, CEBC-CNRS UMR 7372, 79360 Villiers en Bois, France
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23
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de Montaigu CT, Goulson D. Field evidence of UK wild bird exposure to fludioxonil and extrapolation to other pesticides used as seed treatments. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:22151-22162. [PMID: 34780016 PMCID: PMC8930954 DOI: 10.1007/s11356-021-17097-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 10/13/2021] [Indexed: 06/13/2023]
Abstract
We determine the exposure of wild birds to pesticides via consumption of fludioxonil-treated winter wheat seeds following autumn drilling. We recorded the density of seeds left on the soil surface, bird density, and consumption of pesticide-treated seed by birds using camera traps. We calculated the dose ingested by each bird species in a single feeding bout and if they ate treated seeds exclusively for 1 day. We extrapolated this for an additional 19 pesticides commonly used as seed treatments, assuming equal consumption rates. All three fields contained grains on the soil surface (mean 7.14 seeds/m2 on sowing day). In total, 1,374 granivorous birds spanning 18 different species were observed in the fields, with 11 species filmed eating the seeds. Fludioxonil appears to pose a low risk to birds, with <1.14% of the LD50 potentially ingested by a bird for a daily maximum amount of seeds. Analysis of the further 19 pesticides commonly used as seed dressings suggests that the neonicotinoid insecticides imidacloprid, clothianidin, and thiamethoxam represent the highest risk for granivorous birds. For example, chaffinch (Fringilla coelebs) could consume 63% of LD50 of imidacloprid in a single feeding bout, and 370% in a day. Further investigation is clearly required to determine whether seeds treated with these other pesticides are consumed as readily as those treated with fludioxonil, as if so this is likely to cause significant harm.
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Affiliation(s)
| | - Dave Goulson
- School of Life Sciences, University of Sussex, Falmer, East Sussex, UK
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24
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Ecotoxicological Studies on the Action of Actara 25 WG Insecticide on Prussian Carp (Carassius gibelio) and Marsh Frog (Pelophylax ridibundus). TOXICS 2022; 10:toxics10030114. [PMID: 35324739 PMCID: PMC8949032 DOI: 10.3390/toxics10030114] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/20/2022] [Accepted: 02/25/2022] [Indexed: 02/05/2023]
Abstract
The toxic action of the Actara 25 WG insecticide (it contains 25% thiamethoxam as an active substance) in non-lethal doses was studied in two species of aquatic organisms—the Prussian carp (Carassius gibelio) and the marsh frog (Pelophylax ridibundus)—at two thermal levels, 6–8 °C (low temperature) and 18–20 °C (room temperature), respectively. In the Prussian carp, we recorded decreases in oxygen consumption and stimulation of the respiratory rhythm, changes that were more pronounced in the case of intoxicated fish and when the species were kept at room temperature. The histopathology of the lung in the frog illustrated the thickening of the conjunctival septum, an increase in the number of mucous cells, and an increase in the ratio between the diameter of the nucleus and the diameter of the pneumocyte. All of these changes were more pronounced in the animals kept at higher temperature. Our study looks at the extent to which temperature changes can influence the ability of poikilothermic organisms to withstand the presence of toxic substances in the environment as a result of the impact of the use of insecticides in agriculture. The two tested organisms are a common presence for the study area, which was affected in the last decade by climate change.
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25
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Fang X, Duan D, Ye J, Li K. A sensitive visual detection of thiamethoxam based on fluorescence resonance energy transfer from NH 2-SiO 2@CsPbBr 3 to merocyanine configuration of spiropyran. Anal Chim Acta 2021; 1183:338938. [PMID: 34627522 DOI: 10.1016/j.aca.2021.338938] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/22/2021] [Accepted: 08/09/2021] [Indexed: 11/16/2022]
Abstract
The spiropyran (SP) compound is a typical photochromic compound. Its merocyanine configuration (MC) can accept energy and be excited by visible light, while the closed-loop configuration cannot. In this work, the SP was wrapped in β-cyclodextrin (β-CD-SP) firstly. When it was competitively replaced by thiamethoxam and dissociated out of β-CD, it would be converted to MC, which could be excited by visible light around 550 nm to produce red fluorescence. Here, CsPbBr3 was selected as the energy donor based on the principle of fluorescence resonance energy transfer (FRET). In order to connect with β-CD-SP and improve its stability, CsPbBr3 was wrapped in mesoporous silica, and then the second wrapping was performed to block those mesopores and the amination reaction was carried out (NH2-SiO2@CsPbBr3). Subsequently, NH2-SiO2@CsPbBr3 with green fluorescence (506 nm) was used as the internal standard and excitation light source for MC, and the red fluorescence of MC was used as the response signal to construct a ratiometric fluorescence sensor. When thiamethoxam was added and excited by 365 nm ultraviolet light, the energy would be transferred from NH2-SiO2@CsPbBr3 (506 nm) that emitted green fluorescence to MC, which emitted red fluorescence. So, the fluorescence color changed from green to yellow to red with the addition of the thiamethoxam. This sensor was employed to detect thiamethoxam in soil and yam.
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Affiliation(s)
- Xiaoyu Fang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Ding Duan
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Jianping Ye
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Kang Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
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26
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Zgirski T, Legagneux P, Chastel O, Regimbald L, Prouteau L, Le Pogam A, Budzinski H, Love OP, Vézina F. Early life neonicotinoid exposure results in proximal benefits and ultimate carryover effects. Sci Rep 2021; 11:15252. [PMID: 34315944 PMCID: PMC8316441 DOI: 10.1038/s41598-021-93894-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 06/04/2021] [Indexed: 12/05/2022] Open
Abstract
Neonicotinoids are insecticides widely used as seed treatments that appear to have multiple negative effects on birds at a diversity of biological scales. Adult birds exposed to a low dose of imidacloprid, one of the most commonly used neonicotinoids, presented reduced fat stores, delayed migration and potentially altered orientation. However, little is known on the effect of imidacloprid on birds growth rate despite studies that have documented disruptive effects of low imidacloprid doses on thyroid gland communication. We performed a \documentclass[12pt]{minimal}
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\begin{document}$$2 \times 2$$\end{document}2×2 factorial design experiment in Zebra finches, in which nestling birds were exposed to a very low dose (0.205 mg kg body \documentclass[12pt]{minimal}
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\begin{document}$$\hbox {mass}^{-1}$$\end{document}mass-1) of imidacloprid combined with food restriction during posthatch development. During the early developmental period, imidacloprid exposure resulted in an improvement of body condition index in treated nestlings relative to controls. Imidacloprid also led to compensatory growth in food restricted nestlings. This early life neonicotinoid exposure also carried over to adult age, with exposed birds showing higher lean mass and basal metabolic rate than controls at ages of 90–800 days. This study presents the first evidence that very low-dose neonicotinoid exposure during early life can permanently alter adult phenotype in birds.
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Affiliation(s)
- Thomas Zgirski
- Université du Québec à Rimouski (UQAR), Rimouski, QC, G5L 3A1, Canada. .,Centre de la Science de la Biodiversité du Québec (QCBS), Montréal, QC, Canada.
| | - Pierre Legagneux
- Centre de la Science de la Biodiversité du Québec (QCBS), Montréal, QC, Canada.,Université Laval, Quebec, QC, G1V 0A6, Canada.,Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS - La Rochelle Université, France, 79360, Villiers-en-Bois, France.,Centre d'Études Nordiques (CEN), Quebec, QC, Canada
| | - Olivier Chastel
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS - La Rochelle Université, France, 79360, Villiers-en-Bois, France
| | - Lyette Regimbald
- Université du Québec à Rimouski (UQAR), Rimouski, QC, G5L 3A1, Canada
| | - Louise Prouteau
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS - La Rochelle Université, France, 79360, Villiers-en-Bois, France.,Université de Bordeaux & CNRS UMR-5805 EPOC-OASU, 33615, Pessac, France
| | - Audrey Le Pogam
- Université du Québec à Rimouski (UQAR), Rimouski, QC, G5L 3A1, Canada.,Centre de la Science de la Biodiversité du Québec (QCBS), Montréal, QC, Canada.,Centre d'Études Nordiques (CEN), Quebec, QC, Canada.,Groupe de recherche sur les environnements nordiques (BORÉAS), Rimouski, QC, Canada
| | - Hélène Budzinski
- Université de Bordeaux & CNRS UMR-5805 EPOC-OASU, 33615, Pessac, France
| | | | - François Vézina
- Université du Québec à Rimouski (UQAR), Rimouski, QC, G5L 3A1, Canada.,Centre de la Science de la Biodiversité du Québec (QCBS), Montréal, QC, Canada.,Centre d'Études Nordiques (CEN), Quebec, QC, Canada.,Groupe de recherche sur les environnements nordiques (BORÉAS), Rimouski, QC, Canada
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27
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Dhaneshwar A, Hardej D. Disruption of mitochondrial complexes, cytotoxicity, and apoptosis results from Mancozeb exposure in transformed human colon cells. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 84:103614. [PMID: 33592315 DOI: 10.1016/j.etap.2021.103614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/09/2021] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Ethylene bisdithiocarbamate pesticides, including Mancozeb (MZ), are used as fungicides. Effects of MZ on apoptosis induction and mitochondrial activity of HT-29 colon cells were investigated. MZ exposed cells exhibited blebbing and cellular membrane disruption in scanning electron micrographs. Positive fluorescent staining with Annexin V at doses of 60-140 μM supports apoptosis as the mechanism of cell death. Activity of all electron transport chain complexes were evaluated. Mitochondrial Complex I activity was decreased in 100 μM treated cells. Mitochondrial Complex III activity was decreased in 60 and 100 μM MZ treated cells. Mitochondrial Complex II and Complex IV activities were decreased in cells treated with 60, 100, and 140 μM. Cells treated with 60 μM exhibited a decrease in Complex V enzyme activity. It is concluded that MZ exposure inhibits all mitochondrial complexes of HT-29 cells and that positive fluorescent microscopy and blebbing support previous studies of cell death via apoptosis.
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Affiliation(s)
- Amanda Dhaneshwar
- Department of Pharmaceutical Sciences, College of Pharmacy and Healthy Sciences, St. John's University, 8000 Utopia Parkway, Jamaica, NY 11439, USA
| | - Diane Hardej
- Department of Pharmaceutical Sciences, College of Pharmacy and Healthy Sciences, St. John's University, 8000 Utopia Parkway, Jamaica, NY 11439, USA.
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28
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Pisa L, Goulson D, Yang EC, Gibbons D, Sánchez-Bayo F, Mitchell E, Aebi A, van der Sluijs J, MacQuarrie CJK, Giorio C, Long EY, McField M, Bijleveld van Lexmond M, Bonmatin JM. An update of the Worldwide Integrated Assessment (WIA) on systemic insecticides. Part 2: impacts on organisms and ecosystems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:11749-11797. [PMID: 29124633 PMCID: PMC7921077 DOI: 10.1007/s11356-017-0341-3] [Citation(s) in RCA: 106] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 09/25/2017] [Indexed: 05/15/2023]
Abstract
New information on the lethal and sublethal effects of neonicotinoids and fipronil on organisms is presented in this review, complementing the previous Worldwide Integrated Assessment (WIA) in 2015. The high toxicity of these systemic insecticides to invertebrates has been confirmed and expanded to include more species and compounds. Most of the recent research has focused on bees and the sublethal and ecological impacts these insecticides have on pollinators. Toxic effects on other invertebrate taxa also covered predatory and parasitoid natural enemies and aquatic arthropods. Little new information has been gathered on soil organisms. The impact on marine and coastal ecosystems is still largely uncharted. The chronic lethality of neonicotinoids to insects and crustaceans, and the strengthened evidence that these chemicals also impair the immune system and reproduction, highlights the dangers of this particular insecticidal class (neonicotinoids and fipronil), with the potential to greatly decrease populations of arthropods in both terrestrial and aquatic environments. Sublethal effects on fish, reptiles, frogs, birds, and mammals are also reported, showing a better understanding of the mechanisms of toxicity of these insecticides in vertebrates and their deleterious impacts on growth, reproduction, and neurobehaviour of most of the species tested. This review concludes with a summary of impacts on the ecosystem services and functioning, particularly on pollination, soil biota, and aquatic invertebrate communities, thus reinforcing the previous WIA conclusions (van der Sluijs et al. 2015).
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Affiliation(s)
| | - Dave Goulson
- School of Life Sciences, University of Sussex, Brighton, BN1 9QG, UK
| | - En-Cheng Yang
- Department of Entomology, National Taiwan University, Taipei, Taiwan
| | - David Gibbons
- RSPB Centre for Conservation of Science, The Lodge, Sandy, Bedfordshire, SG19 2DL, UK
| | - Francisco Sánchez-Bayo
- School of Life and Environmental Sciences, The University of Sydney, 1 Central Avenue, Eveleigh, NSW, 2015, Australia
| | - Edward Mitchell
- Laboratory of Soil Biodiversity, University of Neuchâtel, Rue Emile-Argand 11, 2000, Neuchâtel, Switzerland
| | - Alexandre Aebi
- Laboratory of Soil Biodiversity, University of Neuchâtel, Rue Emile-Argand 11, 2000, Neuchâtel, Switzerland
- Anthropology Institute, University of Neuchâtel, Rue Saint-Nicolas 4, 2000, Neuchâtel, Switzerland
| | - Jeroen van der Sluijs
- Centre for the Study of the Sciences and the Humanities, University of Bergen, Postboks 7805, 5020, Bergen, Norway
- Department of Chemistry, University of Bergen, Postboks 7805, 5020, Bergen, Norway
- Copernicus Institute of Sustainable Development, Environmental Sciences, Utrecht University, Heidelberglaan 2, 3584 CS, Utrecht, The Netherlands
| | - Chris J K MacQuarrie
- Natural Resources Canada, Canadian Forest Service, 1219 Queen St. East, Sault Ste. Marie, ON, P6A 2E5, Canada
| | | | - Elizabeth Yim Long
- Department of Entomology, The Ohio State University, 1680 Madison Ave, Wooster, OH, 44691, USA
| | - Melanie McField
- Smithsonian Institution, 701 Seaway Drive Fort Pierce, Florida, 34949, USA
| | | | - Jean-Marc Bonmatin
- Centre National de la Recherche Scientifique (CNRS), Centre de Biophysique Moléculaire, Rue Charles Sadron, 45071, Orléans, France.
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Wang Z, Kottawatta KSA, Kodithuwakku SP, Fernando TS, Lee YL, Ng EHY, Yeung WSB, Lee KF. The fungicide Mancozeb reduces spheroid attachment onto endometrial epithelial cells through downregulation of estrogen receptor β and integrin β3 in Ishikawa cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111606. [PMID: 33396126 DOI: 10.1016/j.ecoenv.2020.111606] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 06/12/2023]
Abstract
Mancozeb is a metal-containing ethylene bis-dithiocarbamate fungicide widely used in agriculture. Ethylene thiourea (ETU) is the primary metabolite of Mancozeb. Mancozeb has been associated with spontaneous abortions and abnormal menstruation in women. However, the effects of Mancozeb and ETU on embryo attachment remain unknown. The human blastocyst surrogate trophoblastic spheroids (JEG-3), endometrial epithelial surrogate adenocarcinoma cells (Ishikawa), or human primary endometrial epithelial cells (EECs) monolayer were used in the spheroid attachment models. Ishikawa and EECs were pretreated with different concentrations of Mancozeb or ETU for 48 h before the attachment assay. Gene expression profiles of Ishikawa cells were examined to understand how Mancozeb modulates endometrial receptivity with Microarray. The genes altered by Mancozeb were confirmed by qPCR and compared with the ETU treated groups. Mancozeb and ETU treatment inhibited cell viability at 10 μg/mL and 5000 µg/mL, respectively. At non-cytotoxic concentrations, Mancozeb at 3 μg/mL and ETU at 300 μg/mL reduced JEG-3 spheroid attachment onto Ishikawa cells. A similar result was observed with human primary endometrial epithelial cells. Mancozeb at 3 μg/mL modified the transcription of 158 genes by at least 1.5-fold in Microarray analysis. The expression of 10 differentially expressed genes were confirmed by qPCR. Furthermore, Mancozeb decreased spheroid attachment possibly through downregulating the expression of endometrial estrogen receptor β and integrin β3, but not mucin 1. These results were confirmed in both overexpression and knockdown experiments and co-culture assay. Mancozeb but not its metabolite ETU reduced spheroid attachment through modulating gene expression profile and decreasing estrogen receptor β and integrin β3 expression of endometrial epithelial cells.
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Affiliation(s)
- Ziyi Wang
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Department of Obstetrics and Gynaecology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Kottawattage S A Kottawatta
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Department of Veterinary Public Health and Pharmacology, Faculty of Veterinary Medicine and Animal Science, The University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Suranga P Kodithuwakku
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Department of Animal Science, Faculty of Agriculture, The University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Thevarathanthrige S Fernando
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Yin-Lau Lee
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, China
| | - Ernest H Y Ng
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, China
| | - William S B Yeung
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, China
| | - Kai-Fai Lee
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, China.
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Khidkhan K, Ikenaka Y, Ichise T, Nakayama SMM, Mizukawa H, Nomiyama K, Iwata H, Arizono K, Takahashi K, Kato K, Ishizuka M. Interspecies differences in cytochrome P450-mediated metabolism of neonicotinoids among cats, dogs, rats, and humans. Comp Biochem Physiol C Toxicol Pharmacol 2021; 239:108898. [PMID: 32979584 DOI: 10.1016/j.cbpc.2020.108898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 09/05/2020] [Accepted: 09/16/2020] [Indexed: 10/23/2022]
Abstract
Neonicotinoid insecticides are used for agricultural and non-agricultural purposes worldwide. Pets are directly exposed to neonicotinoids in veterinary products and through environmental contamination. Cytochrome P450 (CYP) is among the most significant xenobiotic metabolizing enzymes that oxidizes several chemicals, including neonicotinoids. However, CYP activities and metabolite compositions of neonicotinoid metabolites are unknown in most domesticated pet species. Our objectives were to reveal the differences in metabolites of neonicotinoids (imidacloprid, clothianidin, and acetamiprid) and CYP activities among common pet species (cats and dogs), humans, and rats. The results indicated that the CYP-mediated neonicotinoid metabolism was different depending on species and each neonicotinoid. Among these four species, the kinetics of imidacloprid metabolism indicated that rats have the highest rate of oxidation of imidacloprid to 4OH-imidacloprid, while the greatest enzyme kinetics of imidacloprid metabolism to 5OH-imidacloprid were found in rats and humans. Clothianidin was rapidly metabolized to 1-methyl-3-nitroguanidine and dm-clothianidin in rats, but cats and humans showed the lowest formation of dm-clothianidin. CYP activities in metabolism of acetamiprid to dm-acetamiprid and N-acetyl-acetamiprid were determined to be significantly higher in humans compared to other species. However, further studies should be targeted at identifying the differences in hepatic metabolism of neonicotinoids in these species using recombinant CYP enzymes.
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Affiliation(s)
- Kraisiri Khidkhan
- Faculty of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Yoshinori Ikenaka
- Faculty of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan; Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2531, South Africa
| | - Takahiro Ichise
- Faculty of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Shouta M M Nakayama
- Faculty of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Hazuki Mizukawa
- Faculty of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan; Department of Science and Technology for Biological Resources and Environment, Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime 790-8566, Japan
| | - Kei Nomiyama
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Hisato Iwata
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
| | - Koji Arizono
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, 3 Chome-1-100 Tsukide, Higashi Ward, Kumamoto 862-8502, Japan
| | - Keisuke Takahashi
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan
| | - Keisuke Kato
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan
| | - Mayumi Ishizuka
- Faculty of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan.
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Skalny A, Aschner M, Paoliello M, Santamaria A, Nikitina N, Rejniuk V, Jiang Y, Rocha J, Tinkov A. Endocrine-disrupting activity of mancozeb. ARHIV ZA FARMACIJU 2021; 71:491-507. [DOI: 10.5937/arhfarm71-34359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
The objective of the present study was to review the existing data on the mechanisms involved in the endocrine disrupting activity of mancozeb (MCZ) in its main targets, including thyroid and gonads, as well as other endocrine tissues that may be potentially affected by MCZ. MCZ exposure was shown to interfere with thyroid functioning through impairment of thyroid hormone synthesis due to inhibition of sodium-iodine symporter (NIS) and thyroid peroxidase (TPO) activity, as well as thyroglobulin expression. Direct thyrotoxic effect may also contribute to thyroid pathology upon MCZ exposure. Gonadal effects of MCZ involve inhibition of sex steroid synthesis due to inhibition of P450scc (CYP11A1), as well as 3b-HSD and 17b-HSD. In parallel with altered hormone synthesis, MCZ was shown to down-regulate androgen and estrogen receptor signaling. Taken together, these gonad-specific effects result in development of both male and female reproductive dysfunction. In parallel with clearly estimated targets for MCZ endocrine disturbing activity, namely thyroid and gonads, other endocrine tissues may be also involved. Specifically, the fungicide was shown to affect cortisol synthesis that may be mediated by modulation of CYP11B1 activity. Moreover, MCZ exposure was shown to interfere with PPARg signaling, being a key regulator of adipogenesis. The existing data also propose that endocrine-disrupting effects of MCZ exposure may be mediated by modulation of hypothalamus-pituitary-target axis. It is proposed that MCZ neurotoxicity may at least partially affect central mechanisms of endocrine system functioning. However, further studies are required to unravel the mechanisms of MCZ endocrine disrupting activity and overall toxicity.
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Zabala J, Trexler JC, Jayasena N, Frederick P. Early Breeding Failure in Birds Due to Environmental Toxins: A Potentially Powerful but Hidden Effect of Contamination. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:13786-13796. [PMID: 33103894 DOI: 10.1021/acs.est.0c04098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Toxin emissions and legacies are major global issues affecting many species through, among other effects, endocrine disruption and reproductive impairment. Assessment of toxin risk to wildlife focuses mostly on offspring-related metrics, while the lack of breeding initiation or early breeding failure has received less attention. We tested whether exposure to methyl mercury (MeHg) results in early breeding failure and reduced number of breeding birds using observational and experimental data. We used 21 years of numbers of breeding pairs of colonially breeding wild Great Egrets (Ardea alba) in response to annual and geographical variation upon exposure to environmental MeHg. After controlling for food availability, we found a strong negative association between MeHg exposure and the number of breeding Great Egrets. We report reductions of >50% in breeding numbers under exposure levels otherwise associated with <20% reduction in post-egg-laying breeding success. Experimental exposure of White Ibises (Eudocimus albus) to MeHg also caused early breeding failure and a ∼20% reduction in breeding numbers at environmentally relevant exposures. The demographic consequences of reductions in breeding pairs are additive to known and typically studied impairments in postlaying reproductive success. Net demographic effects of exposure to endocrine disruptors may often be strongly underestimated if early breeding failure is not measured.
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Affiliation(s)
- Jabi Zabala
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, Florida 32611, United States
| | - Joel C Trexler
- Department of Biological Sciences, Florida International University, North Miami, Florida 33181, United States
| | - Nilmini Jayasena
- Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Peter Frederick
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, Florida 32611, United States
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Roy CL, Coy PL. Wildlife consumption of neonicotinoid-treated seeds at simulated seed spills. ENVIRONMENTAL RESEARCH 2020; 190:109830. [PMID: 32862016 DOI: 10.1016/j.envres.2020.109830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/09/2020] [Accepted: 06/12/2020] [Indexed: 06/11/2023]
Abstract
The most likely route of exposure to high concentrations of neonicotinoids capable of producing lethal or sublethal effects in birds and mammals is consumption of treated seeds. We placed trail cameras at simulated seed spills to document wildlife consuming treated seeds during the spring planting season. We simulated 4 types of spills, corn treated with 2 concentrations of clothiandin (0.50 or 0.25 mg/seed), corn treated with thiamethoxam (0.25 mg/seed), and soybean treated with imidacloprid (0.15 mg/seed). We documented 16 species of birds and 14 species of mammals eating neonicotinoid-treated seeds at spills. Of these, we quantified consumption of treated seeds by 12 species of birds and 13 species of mammals. Birds and mammals did not consume enough seeds to exceed published LD50s in related taxa, but most species did consume enough seeds to reach or exceed thresholds for sublethal effects based on currently available studies. Birds and mammals did not increase the amount of seeds consumed over time, as would be expected if responsive to the concentration of neonicotinoids on seeds, but more birds and mammals consumed seeds over time, as a proportion of the number at spills each day. More birds also consumed seeds after a soaking rain event, which likely reduced the amount of treatment on the seeds. Importantly, wildlife are consuming seeds while neonicotinoids are still concentrated on seeds. Our findings indicate that previously held assumptions about the safety of neonicotinoid seed treatments for vertebrate wildlife need to be revisited.
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Affiliation(s)
- Charlotte L Roy
- Minnesota Department of Natural Resources, Grand Rapids, MN, 55744, USA.
| | - Pamela L Coy
- Minnesota Department of Natural Resources, Grand Rapids, MN, 55744, USA.
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Trudeau VL, Thomson P, Zhang WS, Reynaud S, Navarro-Martin L, Langlois VS. Agrochemicals disrupt multiple endocrine axes in amphibians. Mol Cell Endocrinol 2020; 513:110861. [PMID: 32450283 DOI: 10.1016/j.mce.2020.110861] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 04/17/2020] [Accepted: 05/04/2020] [Indexed: 12/20/2022]
Abstract
Concern over global amphibian declines and possible links to agrochemical use has led to research on the endocrine disrupting actions of agrochemicals, such as fertilizers, fungicides, insecticides, acaricides, herbicides, metals, and mixtures. Amphibians, like other species, have to partition resources for body maintenance, growth, and reproduction. Recent studies suggest that metabolic impairments induced by endocrine disrupting chemicals, and more particularly agrichemicals, may disrupt physiological constraints associated with these limited resources and could cause deleterious effects on growth and reproduction. Metabolic disruption has hardly been considered for amphibian species following agrichemical exposure. As for metamorphosis, the key thyroid hormone-dependent developmental phase for amphibians, it can either be advanced or delayed by agrichemicals with consequences for juvenile and adult health and survival. While numerous agrichemicals affect anuran sexual development, including sex reversal and intersex in several species, little is known about the mechanisms involved in dysregulation of the sex differentiation processes. Adult anurans display stereotypical male mating calls and female phonotaxis responses leading to successful amplexus and spawning. These are hormone-dependent behaviours at the foundation of reproductive success. Therefore, male vocalizations are highly ecologically-relevant and may be a non-invasive low-cost method for the assessment of endocrine disruption at the population level. While it is clear that agrochemicals disrupt multiple endocrine systems in frogs, very little has been uncovered regarding the molecular and cellular mechanisms at the basis of these actions. This is surprising, given the importance of the frog models to our deep understanding of developmental biology and thyroid hormone action to understand human health. Several agrochemicals were found to have multiple endocrine effects at once (e.g., targeting both the thyroid and gonadal axes); therefore, the assessment of agrochemicals that alter cross-talk between hormonal systems must be further addressed. Given the diversity of life-history traits in Anura, Caudata, and the Gymnophiona, it is essential that studies on endocrine disruption expand to include the lesser known taxa. Research under ecologically-relevant conditions will also be paramount. Closer collaboration between molecular and cellular endocrinologists and ecotoxicologists and ecologists is thus recommended.
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Affiliation(s)
- Vance L Trudeau
- Department of Biology, University of Ottawa, 30 Marie Curie Private, Ottawa, ON, K1N 6N5, Canada.
| | - Paisley Thomson
- Institut National de la Recherche Scientifique (INRS), Centre Eau Terre Environnement, 490 de la Couronne, Québec (Québec), G1K 9A9, Canada.
| | - Wo Su Zhang
- Department of Biology, University of Ottawa, 30 Marie Curie Private, Ottawa, ON, K1N 6N5, Canada.
| | - Stéphane Reynaud
- Laboratoire d'Ecologie Alpine, UMR UGA-USMB-CNRS 5553, Université Grenoble Alpes, CS 40700, 38058, Grenoble cedex 9, France.
| | - Laia Navarro-Martin
- Institute of Environmental Assessment and Water Research, IDAEA-CSIC, Jordi Girona 18, 08034, Barcelona, Spain.
| | - Valérie S Langlois
- Institut National de la Recherche Scientifique (INRS), Centre Eau Terre Environnement, 490 de la Couronne, Québec (Québec), G1K 9A9, Canada.
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Lennon RJ, Peach WJ, Dunn JC, Shore RF, Pereira MG, Sleep D, Dodd S, Wheatley CJ, Arnold KE, Brown CD. From seeds to plasma: Confirmed exposure of multiple farmland bird species to clothianidin during sowing of winter cereals. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 723:138056. [PMID: 32224397 DOI: 10.1016/j.scitotenv.2020.138056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 06/10/2023]
Abstract
Neonicotinoids are the largest group of systemic insecticides worldwide and are most commonly applied as agricultural seed treatments. However, little is known about the extent to which farmland birds are exposed to these compounds during standard agricultural practices. This study uses winter cereal, treated with the neonicotinoid clothianidin, as a test system to examine patterns of exposure in farmland birds during a typical sowing period. The availability of neonicotinoid-treated seed was recorded post-sowing at 39 fields (25 farms), and camera traps were used to monitor seed consumption by wild birds in situ. The concentration of clothianidin in treated seeds and crop seedlings was measured via liquid chromatography-tandem mass spectrometry, and avian blood samples were collected from 11 species of farmland bird from a further six capture sites to quantify the prevalence and level of clothianidin exposure associated with seed treatments. Neonicotinoid-treated seeds were found on the soil surface at all but one of the fields surveyed at an average density of 2.8 seeds/m2. The concentration of clothianidin in seeds varied around the target application rate, whilst crop seedlings contained on average 5.9% of the clothianidin measured in seeds. Exposure was confirmed in 32% of bird species observed in treated fields and 50% of individual birds post-sowing; the median concentration recorded in positive samples was 12 ng/mL. Results here provide clear evidence that a variety of farmland birds are subject to neonicotinoid exposure following normal agricultural sowing of neonicotinoid-treated cereal seed. Furthermore, the widespread availability of seeds at the soil surface was identified as a primary source of exposure. Overall, these data are likely to have global implications for bird species and current agricultural policies where neonicotinoids are in use, and may be pertinent to any future risk assessments for systemic insecticide seed treatments.
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Affiliation(s)
- Rosie J Lennon
- Department of Environment and Geography, The University of York, Heslington, York, United Kingdom.
| | - Will J Peach
- Royal Society for the Protection of Birds, Sandy, Bedfordshire, United Kingdom
| | - Jenny C Dunn
- School of Life Sciences, Joseph Banks Laboratories, The University of Lincoln, Lincoln, United Kingdom
| | - Richard F Shore
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, United Kingdom
| | - M Glória Pereira
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, United Kingdom
| | - Darren Sleep
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, United Kingdom
| | - Steve Dodd
- Royal Society for the Protection of Birds, Sandy, Bedfordshire, United Kingdom
| | - Christopher J Wheatley
- Department of Environment and Geography, The University of York, Heslington, York, United Kingdom; Department of Biology, The University of York, Heslington, York, United Kingdom
| | - Kathryn E Arnold
- Department of Environment and Geography, The University of York, Heslington, York, United Kingdom
| | - Colin D Brown
- Department of Environment and Geography, The University of York, Heslington, York, United Kingdom
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Warner GR, Somasundar Y, Weng C, Akin MH, Ryabov AD, Collins TJ. Zero-Order Catalysis in TAML-Catalyzed Oxidation of Imidacloprid, a Neonicotinoid Pesticide. Chemistry 2020; 26:7631-7637. [PMID: 32187755 DOI: 10.1002/chem.202000384] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/17/2020] [Indexed: 02/02/2023]
Abstract
Bis-sulfonamide bis-amide TAML activator [Fe{4-NO2 C6 H3 -1,2-(NCOCMe2 NSO2 )2 CHMe}]- (2) catalyzes oxidative degradation of the oxidation-resistant neonicotinoid insecticide, imidacloprid (IMI), by H2 O2 at pH 7 and 25 °C, whereas the tetrakis-amide TAML [Fe{4-NO2 C6 H3 -1,2-(NCOCMe2 NCO)2 CF2 }]- (1), previously regarded as the most catalytically active TAML, is inactive under the same conditions. At ultra-low concentrations of both imidacloprid and 2, 62 % of the insecticide was oxidized in 2 h, at which time the catalyst is inactivated; oxidation resumes on addition of a succeeding aliquot of 2. Acetate and oxamate were detected by ion chromatography, suggesting deep oxidation of imidacloprid. Explored at concentrations [2]≥[IMI], the reaction kinetics revealed unusually low kinetic order in 2 (0.164±0.006), which is observed alongside the first order in imidacloprid and an ascending hyperbolic dependence in [H2 O2 ]. Actual independence of the reaction rate on the catalyst concentration is accounted for in terms of a reversible noncovalent binding between a substrate and a catalyst, which usually results in substrate inhibition when [catalyst]≪[substrate] but explains the zero order in the catalyst when [2]>[IMI]. A plausible mechanism of the TAML-catalyzed oxidations of imidacloprid is briefly discussed. Similar zero-order catalysis is presented for the oxidation of 3-methyl-4-nitrophenol by H2 O2 , catalyzed by the TAML analogue of 1 without a NO2 -group in the aromatic ring.
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Affiliation(s)
- Genoa R Warner
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA, 15213, USA.,Present Addresses: Department of Comparative Biosciences, University of Illinois, 2001 S. Lincoln Avenue, Urbana, IL 61802, USA
| | - Yogesh Somasundar
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA, 15213, USA
| | - Cindy Weng
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA, 15213, USA.,Present Addresses: Department of Civil and Environmental Engineering, Stanford University, Y2E2, 473 Via Ortega, Stanford, CA, 94305, USA
| | - Mete H Akin
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA, 15213, USA
| | - Alexander D Ryabov
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA, 15213, USA
| | - Terrence J Collins
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave, Pittsburgh, PA, 15213, USA
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Lv Y, Bing Q, Lv Z, Xue J, Li S, Han B, Yang Q, Wang X, Zhang Z. Imidacloprid-induced liver fibrosis in quails via activation of the TGF-β1/Smad pathway. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 705:135915. [PMID: 31835194 DOI: 10.1016/j.scitotenv.2019.135915] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/26/2019] [Accepted: 12/01/2019] [Indexed: 06/10/2023]
Abstract
Imidacloprid (IMI) is one of the most frequently used neonicotinoid insecticide, and its potential toxicity and environmental hazards have gradually attracted people's attention. Liver fibrosis caused by long-term inflammation or oxidative stress can lead to cirrhosis and liver failure, even death. However, the mechanism of liver fibrosis induced by neonicotinoid insecticide remains unclear. This study investigates whether IMI could induce liver fibrosis in quails and a potential mechanism. Our study used a quail 90-day IMI-induced liver fibrosis model. The results showed that IMI induced histopathological lesions, oxidative stress, inflammation, fibrosis, and changes in nuclear factor-kappa B (NF-κB), nuclear factor-E2-related factor-2 (Nrf2), and transforming growth factor (TGF-β1) levels. Furthermore, IMI enhanced the expression of liver fibrosis marker proteins, including collagen I, α-smooth muscle actin (α-SMA), and fibronectin 1 (FN-1), by activating the TGF-β1/Smad signaling pathway. In conclusion, our study demonstrated that IMI exposure induces liver fibrosis via activation of the TGF-β1/Smad signaling pathway in quails.
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Affiliation(s)
- Yueying Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin 150030, China
| | - Qizheng Bing
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin 150030, China
| | - Zhanjun Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jiangdong Xue
- College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao 028000, China
| | - Siyu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin 150030, China
| | - Bing Han
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin 150030, China
| | - Qingyue Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin 150030, China
| | - Xiaoqiao Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin 150030, China
| | - Zhigang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin 150030, China.
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Rodrigues-Pereira P, Macedo S, Gaspar TB, Canberk S, Selmi-Ruby S, Máximo V, Soares P, Miranda-Alves L. Relevant dose of the environmental contaminant, tributyltin, promotes histomorphological changes in the thyroid gland of male rats. Mol Cell Endocrinol 2020; 502:110677. [PMID: 31821856 DOI: 10.1016/j.mce.2019.110677] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 11/25/2019] [Accepted: 12/04/2019] [Indexed: 02/02/2023]
Abstract
Organotin compounds, such as tributyltin (TBT), are common environmental contaminants and suspected endocrine-disrupting chemicals. Tributyltin is found in antifouling paints, widely used in ships and other vessels. The present study evaluated whether a 15-day treatment with TBT at a dose of 100 ng/kg/day could induce histomorphological changes in the thyroid gland of rats. TBT promoted relevant alterations in the thyroid architecture, being the most relevant histological findings the presence of increased number of small-size follicles in the treated group. In qualitative analyses, colloid vacuolization, papillary budging structures, cystic degeneration and chronic thyroiditis, were observed. Moreover, histomorphometric analysis showed statistically significant changes in the follicular architecture of TBT-treated rats, mainly a decrease in the follicle area (colloid) and an increased epithelial height that resulted in an increased epithelial height/colloid ratio. Augmented collagen deposition was also seen in the thyroids of treated groups. In immunohistochemical (IHC) analyses, the localization of NIS protein was described and a significant increased proliferation index (evaluated by Ki67 positive cells) in the treated group was reported. As an indirect measurement of oxidative stress, mitochondrial protein SDHA was also analyzed by IHC analysis. Although the cytoplasmic expression of SDHA was observed in both groups, the staining intensity score was higher in TBT-treated group. Our results suggest that besides causing histomorphological changes, environmental relevant dose of TBT treatment can also induce oxidative alterations.
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Affiliation(s)
- Paula Rodrigues-Pereira
- Laboratório de Endocrinologia Experimental-LEEx, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Brazil; Programa de Pós-graduação em Endocrinologia, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Brazil
| | - Sofia Macedo
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal; Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, Portugal; Instituto de Ciências Biomédicas Abel Salazar (ICBAS), University of Porto, Porto, Portugal; Departmento de Patologia, Faculdade de Medicina da Universidade do Porto (FMUP), Porto, Portugal
| | - Tiago Bordeira Gaspar
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal; Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, Portugal; Instituto de Ciências Biomédicas Abel Salazar (ICBAS), University of Porto, Porto, Portugal; Departmento de Patologia, Faculdade de Medicina da Universidade do Porto (FMUP), Porto, Portugal
| | - Sule Canberk
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal; Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, Portugal; Instituto de Ciências Biomédicas Abel Salazar (ICBAS), University of Porto, Porto, Portugal; Departmento de Patologia, Faculdade de Medicina da Universidade do Porto (FMUP), Porto, Portugal
| | - Samia Selmi-Ruby
- Department of Tumoral Escape, Cancer Research Center of Lyon (CRCL)-UMR Inserm 1052-CNRS 5286, Lyon, France
| | - Valdemar Máximo
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal; Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, Portugal; Departmento de Patologia, Faculdade de Medicina da Universidade do Porto (FMUP), Porto, Portugal
| | - Paula Soares
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal; Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, Portugal; Departmento de Patologia, Faculdade de Medicina da Universidade do Porto (FMUP), Porto, Portugal
| | - Leandro Miranda-Alves
- Laboratório de Endocrinologia Experimental-LEEx, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Brazil; Programa de Pós-graduação em Endocrinologia, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Brazil; Programa de Pós-graduação em Farmacologia e Química Medicinal, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Brazil.
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Gross MS, Bean TG, Hladik ML, Rattner BA, Kuivila KM. Uptake, Metabolism, and Elimination of Fungicides from Coated Wheat Seeds in Japanese Quail ( Coturnix japonica). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:1514-1524. [PMID: 31977218 DOI: 10.1021/acs.jafc.9b05668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Pesticides coated to the seed surface potentially pose an ecological risk to granivorous birds that consume incompletely buried or spilled seeds. To assess the toxicokinetics of seeds treated with current-use fungicides, Japanese quail (Coturnix japonica) were orally dosed with commercially coated wheat seeds. Quail were exposed to metalaxyl, tebuconazole, and fludioxonil at either a low dose (0.0655, 0.0308, and 0.0328 mg/kg of body weight, respectively) or a high dose (0.196, 0.0925, and 0.0985 mg/kg of body weight, respectively). Fungicides were rapidly absorbed and distributed to tissues. Tebuconazole was metabolized into tert-butylhydroxy-tebuconazole. All compounds were eliminated to below detection limits within 24 h. The high detection frequencies observed in fecal samples potentially offer a non-invasive matrix to monitor pesticide exposure. With the summation of total body burden across plasma, tissue, and fecal samples, less than 9% of the administered dose was identified as the parent fungicide, demonstrating the importance to monitor both active ingredients and their metabolites in biological samples.
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Affiliation(s)
- Michael S Gross
- California Water Science Center , United States Geological Survey , Sacramento , California 95819 , United States
| | - Thomas G Bean
- Department of Environmental Science and Technology , University of Maryland , College Park , Maryland 20742 , United States
| | - Michelle L Hladik
- California Water Science Center , United States Geological Survey , Sacramento , California 95819 , United States
| | - Barnett A Rattner
- Patuxent Wildlife Research Center , United States Geological Survey , Beltsville , Maryland 20705 , United States
| | - Kathryn M Kuivila
- Oregon Water Science Center , United States Geological Survey , Portland , Oregon 97201 , United States
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40
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Li AJ, Martinez-Moral MP, Kannan K. Variability in urinary neonicotinoid concentrations in single-spot and first-morning void and its association with oxidative stress markers. ENVIRONMENT INTERNATIONAL 2020; 135:105415. [PMID: 31869729 PMCID: PMC6957733 DOI: 10.1016/j.envint.2019.105415] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/10/2019] [Accepted: 12/11/2019] [Indexed: 05/03/2023]
Abstract
Human exposure to neonicotinoid insecticides (hereafter "neonics") is a concern. Spot urine samples have been widely used in the assessment of exposure to neonics. Urinary concentrations, however, can vary greatly over time due to variable exposure, potentially leading to exposure misclassification. In this study, within- and between-individual variability of urinary concentrations of 13 neonics and their metabolites collected consecutively for up to 44 days from 19 individuals were examined. We also measured seven oxidative stress biomarkers (OSBs) in repeated urine samples to elucidate their relationship with neonic exposure by mixed regression models. Intraclass correlation coefficients (ICCs, a ratio of between-individual variance to total variance) were used to assess the reproducibility of neonic/metabolite concentrations. Sensitivity and specificity were used to evaluate how well spot urine samples determined an individual's average exposure over 44 days. A fair to good reproducibility was observed for N-desmethyl-acetamiprid (ICC = 0.42), whereas thiamethoxam, imidacloprid, clothianidin, imidaclothiz, 6-chloronicotinic acid, and sulfoxaflor showed poor reproducibility (ICC = 0.02-0.37). Use of single-spot urine samples to classify high (top 33%) exposure showed higher specificities (0.68-0.92) than sensitivities (0.32-0.88). The minimum number of specimens (k) required to estimate participant-specific mean for neonic exposures within 20% of the "true" values ranged from 16 to 172. Significant positive correlations were found between some of neonic and OSB concentrations. The high variability found in the urinary concentrations of most neonics/metabolites suggests that a single measurement can result in exposure misclassification.
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Affiliation(s)
- Adela Jing Li
- Wadsworth Center, New York State Department of Health, and Department of Environmental Health Sciences, School of Public Health, State University of New York at Albany, Empire State Plaza, P.O. Box 509, Albany, NY 12201-0509, United States
| | - Maria-Pilar Martinez-Moral
- Wadsworth Center, New York State Department of Health, and Department of Environmental Health Sciences, School of Public Health, State University of New York at Albany, Empire State Plaza, P.O. Box 509, Albany, NY 12201-0509, United States
| | - Kurunthachalam Kannan
- Wadsworth Center, New York State Department of Health, and Department of Environmental Health Sciences, School of Public Health, State University of New York at Albany, Empire State Plaza, P.O. Box 509, Albany, NY 12201-0509, United States; Biochemistry Department, Faculty of Science and Experimental Biochemistry Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.
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41
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Cerrizuela S, Vega-Lopez GA, Aybar MJ. The role of teratogens in neural crest development. Birth Defects Res 2020; 112:584-632. [PMID: 31926062 DOI: 10.1002/bdr2.1644] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 12/11/2019] [Accepted: 12/22/2019] [Indexed: 12/13/2022]
Abstract
The neural crest (NC), discovered by Wilhelm His 150 years ago, gives rise to a multipotent migratory embryonic cell population that generates a remarkably diverse and important array of cell types during the development of the vertebrate embryo. These cells originate in the neural plate border (NPB), which is the ectoderm between the neural plate and the epidermis. They give rise to the neurons and glia of the peripheral nervous system, melanocytes, chondrocytes, smooth muscle cells, odontoblasts and neuroendocrine cells, among others. Neurocristopathies are a class of congenital diseases resulting from the abnormal induction, specification, migration, differentiation or death of NC cells (NCCs) during embryonic development and have an important medical and societal impact. In general, congenital defects affect an appreciable percentage of newborns worldwide. Some of these defects are caused by teratogens, which are agents that negatively impact the formation of tissues and organs during development. In this review, we will discuss the teratogens linked to the development of many birth defects, with a strong focus on those that specifically affect the development of the NC, thereby producing neurocristopathies. Although increasing attention is being paid to the effect of teratogens on embryonic development in general, there is a strong need to critically evaluate the specific role of these agents in NC development. Therefore, increased understanding of the role of these factors in NC development will contribute to the planning of strategies aimed at the prevention and treatment of human neurocristopathies, whose etiology was previously not considered.
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Affiliation(s)
- Santiago Cerrizuela
- Área Biología Experimental, Instituto Superior de Investigaciones Biológicas (INSIBIO, CONICET-UNT), Tucumán, Argentina.,Instituto de Biología "Dr. Francisco D. Barbieri", Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Guillermo A Vega-Lopez
- Área Biología Experimental, Instituto Superior de Investigaciones Biológicas (INSIBIO, CONICET-UNT), Tucumán, Argentina.,Instituto de Biología "Dr. Francisco D. Barbieri", Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Manuel J Aybar
- Área Biología Experimental, Instituto Superior de Investigaciones Biológicas (INSIBIO, CONICET-UNT), Tucumán, Argentina.,Instituto de Biología "Dr. Francisco D. Barbieri", Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina
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Leemans M, Couderq S, Demeneix B, Fini JB. Pesticides With Potential Thyroid Hormone-Disrupting Effects: A Review of Recent Data. Front Endocrinol (Lausanne) 2019; 10:743. [PMID: 31920955 PMCID: PMC6915086 DOI: 10.3389/fendo.2019.00743] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 10/14/2019] [Indexed: 12/26/2022] Open
Abstract
Plant Protection Products, more commonly referred to as pesticides and biocides, are used to control a wide range of yield-reducing pests including insects, fungi, nematodes, and weeds. Concern has been raised that some pesticides may act as endocrine disrupting chemicals (EDCs) with the potential to interfere with the hormone systems of non-target invertebrates and vertebrates, including humans. EDCs act at low doses and particularly vulnerable periods of exposure include pre- and perinatal development. Of critical concern is the number of pesticides with the potential to interfere with the developing nervous system and brain, notably with thyroid hormone signaling. Across vertebrates, thyroid hormone orchestrates metamorphosis, brain development, and metabolism. Pesticide action on thyroid homeostasis can involve interference with TH production and its control, displacement from distributor proteins and liver metabolism. Here we focused on thyroid endpoints for each of the different classes of pesticides reviewing epidemiological and experimental studies carried out both in in vivo and in vitro. We conclude first, that many pesticides were placed on the market with insufficient testing, other than acute or chronic toxicity, and second, that thyroid-specific endpoints for neurodevelopmental effects and mixture assessment are largely absent from regulatory directives.
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Affiliation(s)
- Michelle Leemans
- Muséum National d'Histoire Naturelle, CNRS UMR 7221, Laboratoire Physiologie moléculaire de l'adaptation, Paris, France
| | | | | | - Jean-Baptiste Fini
- Muséum National d'Histoire Naturelle, CNRS UMR 7221, Laboratoire Physiologie moléculaire de l'adaptation, Paris, France
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43
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Lennon RJ, Isaac NJB, Shore RF, Peach WJ, Dunn JC, Pereira MG, Arnold KE, Garthwaite D, Brown CD. Using long-term datasets to assess the impacts of dietary exposure to neonicotinoids on farmland bird populations in England. PLoS One 2019; 14:e0223093. [PMID: 31574132 PMCID: PMC6772096 DOI: 10.1371/journal.pone.0223093] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 09/14/2019] [Indexed: 01/12/2023] Open
Abstract
Over the last 20 years, a new group of systemic insecticides-the neonicotinoids-has gained prominence in arable systems, and their application globally has risen year on year. Previous modelling studies using long-term data have suggested that neonicotinoid application has had a detrimental impact on bird populations, but these studies were either limited to a single species or neglected to analyse specific exposure pathways in conjunction with observed population trends. Using bird abundance data, neonicotinoid usage records and cropping data for England at a 5x5 km resolution, generalised linear mixed models were used to test for spatio-temporal associations between neonicotinoid use and changes in the populations of 22 farmland bird species between 1994 and 2014, and to determine whether any associations were explained by dietary preferences. We assigned farmland bird species to three categories of dietary exposure to neonicotinoids based on literature data for species diets and neonicotinoid residues present in dietary items. Significant estimates of neonicotinoid-related population change were obtained for 13 of the 22 species (9 positive effects, 4 negative effects). Model estimates for individual species were not collectively explained by dietary risk categories, so dietary exposure to neonicotinoids via ingestion of treated seeds and seedlings could not be confirmed as a causal factor in farmland bird declines. Although it is not possible to infer any generic effect of dietary exposure to neonicotinoids on farmland bird populations, our analysis identifies three species with significant negative estimates that may warrant further research (house sparrow Passer domesticus, skylark Alauda arvensis and red-legged partridge Alectoris rufa). We conclude that there was either no consistent effect of dietary exposure to neonicotinoids on farmland bird populations in England, or that any over-arching effect was not detectable using our study design. The potential for indirect effects of insecticide use on bird populations via reduced food availability was not considered here and should be a focus for future research.
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Affiliation(s)
- Rosie J. Lennon
- Department of Environment and Geography, University of York, York, England, United Kingdom
- * E-mail:
| | - Nick J. B. Isaac
- Centre for Ecology & Hydrology, Wallingford, Oxfordshire, England, United Kingdom
| | - Richard F. Shore
- Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, England, United Kingdom
| | - Will J. Peach
- RSPB Centre for Conservation Science, Royal Society for the Protection of Birds, Sandy, Bedfordshire, England, United Kingdom
| | - Jenny C. Dunn
- School of Life Sciences, Joseph Banks Laboratories, University of Lincoln, Lincoln, England, United Kingdom
| | - M. Glória Pereira
- Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, England, United Kingdom
| | - Kathryn E. Arnold
- Department of Environment and Geography, University of York, York, England, United Kingdom
| | - David Garthwaite
- Fera Science Ltd., National Agri-food Innovation Campus, Sand Hutton, York, England, United Kingdom
| | - Colin D. Brown
- Department of Environment and Geography, University of York, York, England, United Kingdom
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Camargo Carniel LS, Niemeyer JC, Iuñes de Oliveira Filho LC, Alexandre D, Gebler L, Klauberg-Filho O. The fungicide mancozeb affects soil invertebrates in two subtropical Brazilian soils. CHEMOSPHERE 2019; 232:180-185. [PMID: 31154178 DOI: 10.1016/j.chemosphere.2019.05.179] [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: 02/12/2019] [Revised: 05/20/2019] [Accepted: 05/21/2019] [Indexed: 06/09/2023]
Abstract
Mancozeb is a dithiocarbamate non-systemic fungicide widely used to control fungal diseases of plants, commonly applied in apple orchards in Brazil. Instead of its common use, there are no reports about the risk to non-target organisms in Brazilian soils. We studied the risk of Mancozeb (in the commercial formulation Dithane® NT) for standard invertebrate species (Folsomia candida, Eisenia andrei and Enchytraeus crypticus) in two subtropical Brazilian soils, Oxisol and Ultisol, which are representative of apple production areas in Brazil. Reproduction and survival tests were carried out following ISO guidelines. Results showed that Mancozeb in Oxisol reduced the survival and reproduction of collembolans (LC50 54.43 and EC50 2.72 mg a.i. kg-1) and enchytraeids (LC50 6.97 and EC50 3.56 mg a.i. kg-1), in lowest values than those observed in Ultisol (F. candida LC50 > 1000 and EC50 > 100 mg a.i. kg-1; E. crypticus LC50 280.21 and EC50 29.67). Effects to E. andrei were similar in both soils and indicated a lower sensitivity of this species to Mancozeb. The species F. candida and E. crypticus were more sensitive than E. andrei. These results reinforce the need to include other soil organisms besides earthworms, using chronical endpoints and considering different types of soils, to better predict the risk of pesticides for subtropical soils.
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Affiliation(s)
- Letícia Scopel Camargo Carniel
- Programa de Pós-Graduação em Ciência do Solo (PPGCS), Santa Catarina State University (UDESC), College of Agriculture and Veterinary (CAV), 88520-000, Lages, SC, Brazil
| | - Julia Carina Niemeyer
- Programa de Pós-Graduação em Ecossistemas Agrícolas e Naturais (PPGEAN), Federal University of Santa Catarina, 89520-000, Curitibanos, SC, Brazil
| | - Luís Carlos Iuñes de Oliveira Filho
- Programa de Pós-Graduação em Ciência do Solo (PPGCS), Santa Catarina State University (UDESC), College of Agriculture and Veterinary (CAV), 88520-000, Lages, SC, Brazil
| | - Douglas Alexandre
- Programa de Pós-Graduação em Ciência do Solo (PPGCS), Santa Catarina State University (UDESC), College of Agriculture and Veterinary (CAV), 88520-000, Lages, SC, Brazil
| | - Luciano Gebler
- Embrapa Uva e Vinho, BR 285, Km 115, POB 177, 95200-000, Vacaria, RS Brazil
| | - Osmar Klauberg-Filho
- Programa de Pós-Graduação em Ciência do Solo (PPGCS), Santa Catarina State University (UDESC), College of Agriculture and Veterinary (CAV), 88520-000, Lages, SC, Brazil.
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Humann-Guilleminot S, Tassin de Montaigu C, Sire J, Grünig S, Gning O, Glauser G, Vallat A, Helfenstein F. A sublethal dose of the neonicotinoid insecticide acetamiprid reduces sperm density in a songbird. ENVIRONMENTAL RESEARCH 2019; 177:108589. [PMID: 31330492 DOI: 10.1016/j.envres.2019.108589] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 06/20/2019] [Accepted: 07/15/2019] [Indexed: 06/10/2023]
Abstract
Farmland bird species are particularly exposed to pesticides through various pathways. Among pesticides, neonicotinoids insecticides are commonly used in agriculture, but their influence on bird reproductive capacities is poorly understood. In this study, we experimentally tested the effects of the neonicotinoid acetamiprid on House sparrows' sperm quality and oxidative status following ingestion of a low and field-realistic dose of the compound. To do so, 56 males were captured, held and orally dosed seven times over 19 days of experiment with either a saline solution (control) or an acetamiprid-saline solution, and sperm samples were retrieved before and after the experiment. The overall dose given to the birds corresponded to 0.5% of the LD50 for the Zebra finch (5.7 mg/kg BW) spread into 7 separate doses and administered every three days over the entire duration of the study (ca. 0.07% LD50 per oral dose). Sperm mobility and sperm oxidative status were unaffected by the treatment, but sperm density was. Birds that received oral doses of acetamiprid suffered a significant decline in their sperm density compared to control birds. This result was confirmed by a significant decrease in the activity of the antioxidant enzyme SOD in the sperm of acetamiprid-dosed birds. These results provide the first evidence of sublethal toxicity of acetamiprid in a songbird and suggest that passerine birds' fertility may be negatively affected by very small doses of neonicotinoids in the wild.
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Affiliation(s)
- S Humann-Guilleminot
- Laboratory of Evolutionary Ecophysiology, Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland; Swiss Ornithological Institute, Sempach, Switzerland.
| | - C Tassin de Montaigu
- Laboratory of Evolutionary Ecophysiology, Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland
| | - J Sire
- Laboratory of Evolutionary Ecophysiology, Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland
| | - S Grünig
- Laboratory of Evolutionary Ecophysiology, Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland
| | - O Gning
- Laboratory of Evolutionary Ecophysiology, Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland
| | - G Glauser
- Neuchâtel Platform of Analytical Chemistry, Faculty of Sciences, University of Neuchâtel, Neuchâtel, Switzerland
| | - A Vallat
- Neuchâtel Platform of Analytical Chemistry, Faculty of Sciences, University of Neuchâtel, Neuchâtel, Switzerland
| | - F Helfenstein
- Laboratory of Evolutionary Ecophysiology, Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland
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46
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Fini JB, Demeneix B. [Thyroid disruptors and their consequences on brain development and behavior]. Biol Aujourdhui 2019; 213:17-26. [PMID: 31274099 DOI: 10.1051/jbio/2019009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Indexed: 06/09/2023]
Abstract
An increase in the prevalence of many diseases affecting the nervous system in both children and adults has been reported. Some of these diseases are related to endocrine dysfunction, notably of the thyroid axis. Examples in children are attention deficit/hyperactivity disorders and Autism Spectrum Disorders, diagnosed but most often affecting the whole life, and multiple sclerosis or Alzheimer's disease in adults. It is becoming increasingly clear that embryonic exposure to thyroid hormone disruptors can lead to short- and long-term consequences, that often escape conventional neonatal diagnosis. Endocrine disruptors comprise a wide range of molecules, plasticizers, some pesticides, surfactants, flame-retardants, etc., many of which can interfere with thyroid hormone synthesis or their actions. We here report briefly the history of endocrine disruptors, their properties and the consequences on neuronal development of embryonic exposure to some of them.
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Affiliation(s)
- Jean-Baptiste Fini
- Muséum National d'Histoire Naturelle, CNRS UMR 7221, Laboratoire Physiologie moléculaire de l'adaptation, 7 rue Cuvier, 75005 Paris, France
| | - Barbara Demeneix
- Muséum National d'Histoire Naturelle, CNRS UMR 7221, Laboratoire Physiologie moléculaire de l'adaptation, 7 rue Cuvier, 75005 Paris, France
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47
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Carlsson G. Effect-based environmental monitoring for thyroid disruption in Swedish amphibian tadpoles. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:454. [PMID: 31222463 PMCID: PMC6586702 DOI: 10.1007/s10661-019-7590-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 06/04/2019] [Indexed: 06/09/2023]
Abstract
It is well-known that the metamorphosis process in amphibians is dependent on thyroid hormones. Laboratory studies have shown that several environmental contaminants can affect the function of thyroid hormones leading to alterations in the amphibian metamorphosis. The basic idea of the present study was to elucidate if the amphibian metamorphosis might be a useful tool as biomarker for effect-based environmental monitoring, examining wild tadpoles for potential thyroid hormone disruption. A laboratory test was performed to identify the responses from exposure to 6-propylthiouracil (PTU), which has a well-known mechanism on the thyroid system, on Swedish tadpoles from the Rana genus. This was followed by an environmental monitoring study where tadpoles of Rana arvalis, R. temporaria, and Bufo bufo were sampled from various sites in Sweden. Morphological data such as body weight, histopathological measurements of the thyroid glands, and environmental parameters were recorded. The results revealed that Rana tadpoles respond similar as other amphibians to PTU exposure, with interrupted development and increased size relative to the developmental stage. Data on some wild tadpoles showed similar features as the PTU exposed, such as high body weight, thus suggesting potential thyroid disrupting effects. However, histological evaluation of thyroid glands and pesticide analyses of the water revealed no clear evidence of chemical interactions. To a minor degree, the changes in body weight may be explained by natural circumstances such as pH, forest cover, and temperature. The present study cannot fully explain whether the high body weights recorded in some tadpoles have natural or chemical explanations. However, the study reveals that it is clearly achievable to catch tadpoles in suitable stages for the use in this type of biomonitoring and that the use of these biomarkers for assessment of thyroid disruption seems to be highly relevant.
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Affiliation(s)
- Gunnar Carlsson
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Box 7028, 750 07, Uppsala, Sweden.
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48
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Bean TG, Gross MS, Karouna-Renier NK, Henry PFP, Schultz SL, Hladik ML, Kuivila KM, Rattner BA. Toxicokinetics of Imidacloprid-Coated Wheat Seeds in Japanese Quail ( Coturnix japonica) and an Evaluation of Hazard. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:3888-3897. [PMID: 30802040 DOI: 10.1021/acs.est.8b07062] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Birds are potentially exposed to neonicotinoid insecticides by ingestion of coated seeds during crop planting. Adult male Japanese quail were orally dosed with wheat seeds coated with an imidacloprid (IMI) formulation at either 0.9 or 2.7 mg/kg body weight (BW) (∼3 and 9% of IMI LD50 for Japanese quail, respectively) for 1 or 10 days. Quail were euthanized between 1 and 24 h postexposure to assess toxicokinetics. Analysis revealed rapid absorption (1 h) into blood and distribution to the brain, muscle, kidney, and liver. Clearance to below detection limits occurred at both dose levels and exposure durations in all tissues within 24 h. Metabolism was extensive, with 5-OH-IMI and IMI-olefin detected at greater concentrations than IMI in tissues and fecal samples. There was no lethality or overt signs of toxicity at either dose level. Furthermore, no evidence of enhanced expression of mRNA genes associated with hepatic xenobiotic metabolism, oxidative DNA damage, or alterations in concentrations of corticosterone and thyroid hormones was observed. Application of the toxicokinetic data was used to predict IMI residue levels in the liver with reasonable results for some field exposure and avian mortality events. It would appear that some affected species of birds are either consuming larger quantities of seeds or exhibit differences in ADME or sensitivity than predicted by read-across from these data.
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Affiliation(s)
- Thomas G Bean
- Department of Environmental Science and Technology , University of Maryland , College Park , Maryland 20742 , United States
| | - Michael S Gross
- U.S. Geological Survey California Water Science Center , Sacramento , California 95819 , United States
| | - Natalie K Karouna-Renier
- U.S. Geological Survey Patuxent, Wildlife Research Center , Beltsville , Maryland 20705 , United States
| | - Paula F P Henry
- U.S. Geological Survey Patuxent, Wildlife Research Center , Beltsville , Maryland 20705 , United States
| | - Sandra L Schultz
- U.S. Geological Survey Patuxent, Wildlife Research Center , Beltsville , Maryland 20705 , United States
| | - Michelle L Hladik
- U.S. Geological Survey California Water Science Center , Sacramento , California 95819 , United States
| | - Kathryn M Kuivila
- U.S. Geological Survey Oregon Water Science Center , Portland , Oregon 97201 , United States
| | - Barnett A Rattner
- U.S. Geological Survey Patuxent, Wildlife Research Center , Beltsville , Maryland 20705 , United States
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Effects of Neonicotinoid Insecticides on Physiology and Reproductive Characteristics of Captive Female and Fawn White-tailed Deer. Sci Rep 2019; 9:4534. [PMID: 30872713 PMCID: PMC6418266 DOI: 10.1038/s41598-019-40994-9] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 02/22/2019] [Indexed: 11/17/2022] Open
Abstract
Over the past decade, abnormalities have been documented in white-tailed deer (Odocoileus virginianus) in west-central Montana. Hypotheses proposed to explain these anomalies included contact with endocrine disrupting pesticides, such as imidacloprid. We evaluated the effects of imidacloprid experimentally at the South Dakota State University Wildlife and Fisheries Captive Facility where adult white-tailed deer females and their fawns were administered aqueous imidacloprid (an untreated control, 1,500 ng/L, 3,000 ng/L, and 15,000 ng/L). Water consumption, thyroid hormone function, behavioral responses, and skull and jawbone measurements were compared among treatments. Additionally, liver, spleen, genital, and brain imidacloprid concentrations were determined by an enzyme-linked immunosorbent assay (ELISA). Results indicated that 1) control deer consumed more water than treatment groups, 2) imidacloprid was present in the organs of our control group, indicating environmental contamination, 3) as imidacloprid increased in the spleen, fawn survival, thyroxine levels, jawbone lengths, body weight, and organ weights decreased, 4) adult female imidacloprid levels in the genitals were negatively correlated with genital organ weight and, 5) behavioral observations indicated that imidacloprid levels in spleens were negatively correlated with activity levels in adult females and fawns. Results demonstrate that imidacloprid has direct effects on white-tailed deer when administered at field–relevant doses.
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50
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Ertl HM, Mora MA, Boellstorff DE, Brightsmith D, Carson K. Potential effects of neonicotinoid insecticides on northern bobwhites. WILDLIFE SOC B 2018. [DOI: 10.1002/wsb.921] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hannah M. Ertl
- Department of Wildlife and Fisheries Sciences; Texas A&M University; College Station TX 77843-2258 USA
| | - Miguel A. Mora
- Department of Wildlife and Fisheries Sciences; Texas A&M University; College Station TX 77843-2258 USA
| | - Diane E. Boellstorff
- Department of Soil and Crop Sciences; Texas A&M AgriLife Extension Service; Texas A&M University System; College Station TX 77843 USA
| | - Donald Brightsmith
- Department of Veterinary Pathobiology; Texas A&M University; College Station TX 77843 USA
| | - Katherine Carson
- Department of Soil and Crop Sciences; Texas A&M AgriLife Extension Service; Texas A&M University System; College Station TX 77843 USA
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