Maternal and developmental toxicity after exposure to formulation of chlorothalonil and thiophanate-methyl during organogenesis in rats
Título del documento: Maternal and developmental toxicity after exposure to formulation of chlorothalonil and thiophanate-methyl during organogenesis in rats
Revista: Anais da Academia Brasileira de Ciencias
Base de datos: PERIÓDICA
Número de sistema: 000435844
ISSN: 0001-3765
Autores: 1
1
1
2
Instituciones: 1Universidade do Oeste Paulista, Faculdade de Artes, Ciencias e Letras de Presidente Prudente, Presidente Prudente, Sao Paulo. Brasil
2Universidade do Oeste Paulista, Programa de Pos-graduacao em Meio Ambiente e Desenvolvimento Regional, Presidente Prudente, Sao Paulo. Brasil
Año:
Volumen: 92
Número: 4
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés Chlorothalonil and thiophanate-methyl are fungicides widely used in agriculture. The aim of this study was to assess maternal toxicity and embryotoxic potential of exposure to chlorothalonil and thiophanate-methyl during organogenesis period in rats. Pregnant rats were divided into four groups: control and exposed to 400 (CT400), 800 (CT800) and 1200 mg-1kg bw-1 day (CT1200) of commercial formulation constituted of 200 g of thiophanate-methyl kg−1 and 500 g of chlorothalonil kg−1 by gavage, from 6th to 15th gestational day. Maternal toxicity, liver, kidney and placenta histology, reproductive performance, and external, skeletal and visceral malformations of fetuses were evaluated. Maternal liver weight was decreased in CT1200 group and focal necrosis and microvesicular steatosis, inflammatory infiltrate and hepatocytes with pyknotic nucleus were observed in CT800 and CT1200 groups. Reproductive performance was similar among groups. The percentage of fetuses small for pregnancy age was increase in CT400 and CT800 groups. Moreover, incidence of skeletal anomalies was increased in the three groups exposed to fungicides. Chlorothalonil and thiophanate-methyl exposure showed affect the prenatal development and induce maternal toxicity
Disciplinas: Medicina
Palabras clave: Toxicología,
Medicina experimental,
Fungicidas,
Toxicidad,
Desarrollo embrionario,
Organogénesis,
Ratas,
Clorotalonil,
Metil-tiofanato
Keyword: Toxicology,
Experimental medicine,
Fungicides,
Toxicity,
Embryo development,
Organogenesis,
Rats,
Chlorothalonil,
Thiophanate-methyl
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