Publications by authors named "Florent Le Gleau"

Esteban is a nationwide cross-sectional study conducted in France in 2014-2016, including 2503 adults aged 18-74 years old and 1104 children aged 6-17 years old, as part of the French Human Biomonitoring programme. The present paper describes the biological levels of five families of pesticides analysed on random sub-samples of 900 adults and 500 children for urine concentrations, and 759 adults and 255 children for serum concentrations, and the determinants of exposure. Organophosphates, carbamates and herbicides were measured in urine by UPLC-MS/MS; chlorophenols and pyrethroids were measured in urine by GC-MS/MS; specific organochlorines were measured in serum by GC-HRMS.

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Background: As part of the French Human Biomonitoring (HBM) programme, the Esteban study described, among other things, biomarkers levels of various chemicals in adults (18-74 years old) and children (6-17 years old). This paper describes the design of the study and provides, for the first time, data on the biological exposure of the general French population to a wide range of contaminants posing a threat to human health which are currently found in domestic environments.

Methods: Esteban is a cross-sectional study conducted on a nationwide sample of the French general population.

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Background: Maternal occupational exposure to organic solvents during pregnancy has been associated with decreased visual function in offspring. Glycol ethers (GEs) belong to oxygenated solvents and are widely used both in occupational and domestic contexts.

Objectives: We aimed to assess associations between prenatal GEs exposure and contrast sensitivity in children.

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Glycol ethers are an oxygenated solvent family widely present in consumer products. Some of them are recognized reproductive, developmental or hematological toxicants. Although several glycol ether biomonitoring studies have been performed on adults from working or general populations, no studies have hitherto been carried out on children.

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Background: Exposure to glycol ethers (GEs) is suspected of impairing neurodevelopment in children, but the specific impact on their inhibitory capacity, a central deficit of ADHD, has never been studied. We aimed to assess the impact of prenatal exposure to GEs on the response inhibition of children aged six years.

Methods: In total, 169 mother-child pairs from the French cohort PELAGIE (2002-2006) were studied.

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Objectives: Glycol ethers (GE) are oxygenated solvents frequently found in occupational and consumer products. Some of them are well-known testicular and developmental animal toxicants. This study aims to evaluate the risk of male genital anomalies in association with prenatal exposure to GE using urinary biomarkers of exposure.

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Article Synopsis
  • Pyrethroids, commonly used insecticides in agriculture and homes, can expose children through various pathways, with this study analyzing their metabolites in the urine of 245 six-year-olds and dust samples from their homes in Brittany, France (2009-2012).
  • The study found that multiple food groups, particularly staples like pasta and organic food, play a significant role in elevating children's exposure to specific pyrethroid metabolites, while parental occupational exposure to pesticides notably increases urinary concentrations of certain metabolites.
  • Home insecticide use strongly correlates with higher dust levels of permethrin and detectable levels of cyfluthrin, with outdoor insecticide usage also linked to increased dust detection of cypermethrin and tetramethrin.
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Background: Glycol ethers (GE) are widely used organic solvents. Despite the potential neurotoxicity of several families of organic solvents, little is known about the impact of GE on the neurodevelopment of infants and children.

Objectives: We investigated the relation between urinary concentrations of GE metabolites in pregnant women and neurocognitive abilities in their 6-year-old children in the PELAGIE mother-child cohort.

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