K L Pedersen, S N Pedersen, L B Christiansen, B Korsgaard, P Bjerregaard
{"title":"The preservatives ethyl-, propyl- and butylparaben are oestrogenic in an in vivo fish assay.","authors":"K L Pedersen, S N Pedersen, L B Christiansen, B Korsgaard, P Bjerregaard","doi":"10.1034/j.1600-0773.2000.d01-20.x","DOIUrl":null,"url":null,"abstract":"<p><p>The widely used phenolic preservatives ethylparaben, propylparaben, butylparaben and their common metabolite p-hydroxybenzoic acid were tested for their ability to evoke an oestrogenic response in vivo. Yolk protein induction in sexually immature rainbow trout was used as an oestrogen-specific endpoint after repeated injections of the compounds. All tested parabens were oestrogenic in doses between 100 and 300 mg/kg, while the metabolite showed no activity. Ethylparaben was found to be approximately sixty times weaker than propyl- and butylparaben which had oestrogenic potencies comparable to those previously found for bisphenol A.</p>","PeriodicalId":19876,"journal":{"name":"Pharmacology & toxicology","volume":"86 3","pages":"110-3"},"PeriodicalIF":0.0000,"publicationDate":"2000-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"56","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pharmacology & toxicology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1034/j.1600-0773.2000.d01-20.x","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 56
Abstract
The widely used phenolic preservatives ethylparaben, propylparaben, butylparaben and their common metabolite p-hydroxybenzoic acid were tested for their ability to evoke an oestrogenic response in vivo. Yolk protein induction in sexually immature rainbow trout was used as an oestrogen-specific endpoint after repeated injections of the compounds. All tested parabens were oestrogenic in doses between 100 and 300 mg/kg, while the metabolite showed no activity. Ethylparaben was found to be approximately sixty times weaker than propyl- and butylparaben which had oestrogenic potencies comparable to those previously found for bisphenol A.