Possible risk of endometriosis for Seveso, Italy, residents: an assessment of exposure to dioxin

A recent study by Rier et al. showed that rhesus monkeys exposed daily for 4 years to 5 or 25 ppt of dioxin in food develop endometriosis, with incidence and severity related to dose. We aimed to determine whether the total time-integrated dioxin exposure of a human population could be comparable to...

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Veröffentlicht in:Environmental health perspectives 1994-05, Vol.102 (5), p.476-477
Hauptverfasser: Bois, F.Y, Eskenazi, B
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description A recent study by Rier et al. showed that rhesus monkeys exposed daily for 4 years to 5 or 25 ppt of dioxin in food develop endometriosis, with incidence and severity related to dose. We aimed to determine whether the total time-integrated dioxin exposure of a human population could be comparable to that of Rier's monkeys. We selected a sample of residents of Seveso, Italy, who were acutely exposed to high levels of dioxin following an accident in 1976. We conducted a toxicokinetic analysis which takes into account species and exposure differences in dose and tming between humans and monkeys. The area under the time-concentration curve for dioxin in fat, which corresponds to cumulative exposure over time, ranges for some of the most heavily exposed Seveso residents from approximately 1.7× 106ppt-days to 1.1× 108ppt-days. These values exceed in all cases the values for the monkeys exposed to 25 ppt or 5 ppt. Given their exposure, the Seveso population should be an ideal epidemiologic cohort to rule out or confirm whether exposure to dioxin leads to an increased risk of endometriosis in humans.
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We aimed to determine whether the total time-integrated dioxin exposure of a human population could be comparable to that of Rier's monkeys. We selected a sample of residents of Seveso, Italy, who were acutely exposed to high levels of dioxin following an accident in 1976. We conducted a toxicokinetic analysis which takes into account species and exposure differences in dose and tming between humans and monkeys. The area under the time-concentration curve for dioxin in fat, which corresponds to cumulative exposure over time, ranges for some of the most heavily exposed Seveso residents from approximately 1.7× 106ppt-days to 1.1× 108ppt-days. These values exceed in all cases the values for the monkeys exposed to 25 ppt or 5 ppt. 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We aimed to determine whether the total time-integrated dioxin exposure of a human population could be comparable to that of Rier's monkeys. We selected a sample of residents of Seveso, Italy, who were acutely exposed to high levels of dioxin following an accident in 1976. We conducted a toxicokinetic analysis which takes into account species and exposure differences in dose and tming between humans and monkeys. The area under the time-concentration curve for dioxin in fat, which corresponds to cumulative exposure over time, ranges for some of the most heavily exposed Seveso residents from approximately 1.7× 106ppt-days to 1.1× 108ppt-days. These values exceed in all cases the values for the monkeys exposed to 25 ppt or 5 ppt. 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We aimed to determine whether the total time-integrated dioxin exposure of a human population could be comparable to that of Rier's monkeys. We selected a sample of residents of Seveso, Italy, who were acutely exposed to high levels of dioxin following an accident in 1976. We conducted a toxicokinetic analysis which takes into account species and exposure differences in dose and tming between humans and monkeys. The area under the time-concentration curve for dioxin in fat, which corresponds to cumulative exposure over time, ranges for some of the most heavily exposed Seveso residents from approximately 1.7× 106ppt-days to 1.1× 108ppt-days. These values exceed in all cases the values for the monkeys exposed to 25 ppt or 5 ppt. Given their exposure, the Seveso population should be an ideal epidemiologic cohort to rule out or confirm whether exposure to dioxin leads to an increased risk of endometriosis in humans.</abstract><cop>United States</cop><pub>National Institute of Environmental Health Sciences. National Institutes of Health. Department of Health, Education and Welfare</pub><pmid>8593852</pmid><doi>10.1289/ehp.94102476</doi><tpages>2</tpages><oa>free_for_read</oa></addata></record>
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subjects Accidents
Adipose Tissue - metabolism
ADIPOSE TISSUES
ALIMENTOS
Animals
Blood
Body fat
Chemical hazards
COMPOSE ORGANOCHLORE
COMPUESTO ORGANICO DEL CLORO
CONTAMINACION
CONTAMINATION
Dioxins
Dosage
Endometriosis
Endometriosis - etiology
ENFERMEDADES UTERINAS
Environmental Exposure
Female
FEMALES
FEMELLE
Food Contamination
FOODS
HALOGENATED HYDROCARBONS
HEMBRA
HIDROCARBUROS HALOGENADOS
Humans
HYDROCARBURE HALOGENE
INGESTION TOXICITY
ITALIA
ITALIE
ITALY
KINETICS
MACACA MULATTA
MALADIE DE L'UTERUS
MONKEYS
MONO
ORGANOCHLORINE COMPOUNDS
Polychlorinated Dibenzodioxins - adverse effects
Polychlorinated Dibenzodioxins - blood
Polychlorinated Dibenzodioxins - pharmacokinetics
PRODUIT ALIMENTAIRE
RIESGO
RISK
Risk Factors
RISQUE
SINGE
TEJIDO ADIPOSO
TISSU ADIPEUX
TOXICIDAD POR INGESTION
TOXICITE PAR INGESTION
TOXICOKINETICS
UTERINE DISEASES
title Possible risk of endometriosis for Seveso, Italy, residents: an assessment of exposure to dioxin
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