Abstract
Background: Human exposure to insecticides raises serious public health concerns worldwide. Insecticides constitute a wide-ranging heterogeneous group of chemicals, most of which target the nervous system and disrupt neurometabolism and/or neurotransmission. Although the acute effects of insecticide poisoning in humans are well documented, the chronic and long-term effects remain difficult to investigate.
Objectives and Method: We sought to review the present state-of-knowledge of acute, chronic, neurodevelopmental and neurological consequences of human exposure to insecticides.
Results: Animal and epidemiologic studies indicate cognitive, behavioral and psychomotor alterations in mammals chronically exposed to insecticides. Parkinson’s and Alzheimer’s diseases, amyotrophic lateral sclerosis, and depression, have been regularly associated with insecticide exposure. Clinical studies, supported by experiments on animal models, demonstrate the neurotoxic impact of insecticide exposure during the period of cerebral development, the developing brain being particularly vulnerable to the action of insecticides. Moreover, detoxifying systems that are highly polymorph lead to great inter-individual variability in susceptibility to the neurotoxic effects of insecticides.
Conclusion: Studies on mild chronic exposure to insecticides suggest significant involvement in the pathogenesis of multifactorial neurological diseases. However, the tardive appearance of neurodegenerative disorders and the large variability of inter-individual susceptibility to neurotoxicants make it difficult to assess the relative contribution of insecticide exposure. Close vigilance should therefore be exercised with regard to possible exposure to insecticides, particularly during the period of cerebral development.
Keywords: Insecticides, insecticide poisoning, neurodevelopmental toxicity, neurotoxicity, pesticides.
Current Medicinal Chemistry
Title:Neurotoxicity of Insecticides
Volume: 24 Issue: 27
Author(s): Julien Cassereau, Marc Ferré, Arnaud Chevrollier, Philippe Codron, Christophe Verny, Chadi Homedan, Guy Lenaers, Vincent Procaccio, Pascale May-Panloup and Pascal Reynier*
Affiliation:
- Département de Biochimie et Génétique, Centre Hospitalier Universitaire, 4 rue Larrey, Angers, F-49933,France
Keywords: Insecticides, insecticide poisoning, neurodevelopmental toxicity, neurotoxicity, pesticides.
Abstract: Background: Human exposure to insecticides raises serious public health concerns worldwide. Insecticides constitute a wide-ranging heterogeneous group of chemicals, most of which target the nervous system and disrupt neurometabolism and/or neurotransmission. Although the acute effects of insecticide poisoning in humans are well documented, the chronic and long-term effects remain difficult to investigate.
Objectives and Method: We sought to review the present state-of-knowledge of acute, chronic, neurodevelopmental and neurological consequences of human exposure to insecticides.
Results: Animal and epidemiologic studies indicate cognitive, behavioral and psychomotor alterations in mammals chronically exposed to insecticides. Parkinson’s and Alzheimer’s diseases, amyotrophic lateral sclerosis, and depression, have been regularly associated with insecticide exposure. Clinical studies, supported by experiments on animal models, demonstrate the neurotoxic impact of insecticide exposure during the period of cerebral development, the developing brain being particularly vulnerable to the action of insecticides. Moreover, detoxifying systems that are highly polymorph lead to great inter-individual variability in susceptibility to the neurotoxic effects of insecticides.
Conclusion: Studies on mild chronic exposure to insecticides suggest significant involvement in the pathogenesis of multifactorial neurological diseases. However, the tardive appearance of neurodegenerative disorders and the large variability of inter-individual susceptibility to neurotoxicants make it difficult to assess the relative contribution of insecticide exposure. Close vigilance should therefore be exercised with regard to possible exposure to insecticides, particularly during the period of cerebral development.
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Cite this article as:
Cassereau Julien, Ferré Marc , Chevrollier Arnaud, Codron Philippe, Verny Christophe, Homedan Chadi , Lenaers Guy, Procaccio Vincent , May-Panloup Pascale and Reynier Pascal *, Neurotoxicity of Insecticides, Current Medicinal Chemistry 2017; 24 (27) . https://dx.doi.org/10.2174/0929867324666170526122654
DOI https://dx.doi.org/10.2174/0929867324666170526122654 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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