Impairment of testicular development in rats exposed to acephate during maternal gestation and lactation

Sampaio, Carolina Ferreira; Prates, Kelly Valério; Siervo, Gláucia Elóisa Munhoz de Lion; Mathias, Paulo Cézar de Freitas; Fernandes, Glaura Scantamburlo Alves

doi:10.1007/s11356-019-07209-0

Cited by 11 publications

(1 citation statement)

References 31 publications

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“…Exposure to acephate in drinking water poses health risks, as stated by the Environmental Protection Agency in a revised human health risk assessment released in 2023 ( Godshall et al, 2023 ). To date, studies on acephate exposure have mainly focused on reproductive toxicity and endocrine disruption ( Farag et al, 2000 ; Sampaio et al, 2020 ; Sasaki et al, 2023 ). To the best of our knowledge, studies on the neurotoxicity of acephate have been limited to basic reports, including those on muscle weakness, reduced brain substance levels in rodents ( Spassova et al, 2000 ; WHO, 2005 ), and disruption of migration patterns in birds ( Geen et al, 1984 ).…”

Section: Introductionmentioning

confidence: 99%

Male mice are susceptible to brain dysfunction induced by early-life acephate exposure

Sasaki,

Islam,

Hara

et al. 2024

Front. Neurosci.

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BackgroundAcephate is a widely used organophosphate insecticide. Exposure to endocrine-disrupting chemicals, such as acephate, can interfere with neurodevelopment in childhood, increasing the risk of higher brain dysfunction later in life. Furthermore, brain dysfunction may be related to chemical exposure-related disturbances in the gut microbiota. However, the effects of early acephate exposure on the brains of adult males and females as well as on the adult gut environment remain poorly understood.MethodsThis study investigated the effects of perinatal acephate exposure on the central nervous system and gut microbiota of mice, including sex differences and environmentally relevant concentrations. C57BL/6 N pups were exposed to acephate (0, 0.3, 10, and 300 ppm) via the dam in their drinking water from embryonic day (E) 11.5 to postnatal day 14. We examined its effects on the central nervous system of adult males and females.ResultsIn the male treatment group, impairments in learning and memory were detected. Immunohistochemical analysis revealed a decrease in SOX2-, NeuN-, DCX-, and GFAP-positive cells in the hippocampal dentate gyrus in males compared to the control group, whereas GFAP-positive cells were fewer in females. In addition, gut microbiota diversity was reduced in both sexes in the experimental group.ConclusionOur study demonstrates that the effects of early-life exposure to acephate are more pronounced in males than in females and can lead to a lasting impact on adult behavior, even at low doses, and that the gut microbiota may reflect the brain environment.

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