title: The Combined Effect of Methyl- and Ethyl-Paraben on Lifespan and Preadult Development Period of Drosophila melanogaster (Diptera: Drosophilidae).
abstract: Parabens are widely used as preservative substances in foods, pharmaceuticals, industrial products, and cosmetics. But several studies have cautioned that parabens have estrogenic or endocrine-disrupting properties. Drosophila melanogaster is an ideal model in vivo to detect the toxic effects of chemistry. The study was designed to assess the potential additive toxic effects of methylparaben (MP) and ethylparaben (EP) mixture (MP + EP) on lifespan and preadult development period in D. melanogaster The data revealed that the MP + EP can reduce the longevity of flies compared with the control group, consistent with a significant reduction in malondialdehyde levels and an increase in superoxide dismutase activities. Furthermore, MP + EP may have a greater toxic effect on longevity of flies than separate using with the same concentration. Additionally, parabens had a nonmonotonic dose-response effect on D. melanogaster preadult development period, showing that MP + EP delayed preadult development period compared with control group while individual MP or EP significantly shortened (P < 0.01) at low concentration (300 mg/l). In conclusion, MP + EP had the potential additive toxicity on lifespan and preadult development period for D. melanogaster.
authors.affiliation: College of Life Sciences, Shaanxi Normal University, No. 620, West Chang'an Avenue, Chang'an District, Xi'an 710119, China (chenqi@snnu.edu.cn; panchenguang@snnu.edu.cn; 503619890@qq.com; zhangmin451@snnu.edu.cn) and.
authors.forename: Qi
authors.initials: Q
authors.lastname: Chen
authors.affiliation: College of Life Sciences, Shaanxi Normal University, No. 620, West Chang'an Avenue, Chang'an District, Xi'an 710119, China (chenqi@snnu.edu.cn; panchenguang@snnu.edu.cn; 503619890@qq.com; zhangmin451@snnu.edu.cn) and.
authors.forename: Chenguang
authors.initials: C
authors.lastname: Pan
authors.affiliation: College of Life Sciences, Shaanxi Normal University, No. 620, West Chang'an Avenue, Chang'an District, Xi'an 710119, China (chenqi@snnu.edu.cn; panchenguang@snnu.edu.cn; 503619890@qq.com; zhangmin451@snnu.edu.cn) and.
authors.forename: Yajuan
authors.initials: Y
authors.lastname: Li
authors.affiliation: College of Life Sciences, Shaanxi Normal University, No. 620, West Chang'an Avenue, Chang'an District, Xi'an 710119, China (chenqi@snnu.edu.cn; panchenguang@snnu.edu.cn; 503619890@qq.com; zhangmin451@snnu.edu.cn) and.
authors.forename: Min
authors.initials: M
authors.lastname: Zhang
authors.affiliation: College of Life Sciences, Shaanxi Normal University, No. 620, West Chang'an Avenue, Chang'an District, Xi'an 710119, China (chenqi@snnu.edu.cn; panchenguang@snnu.edu.cn; 503619890@qq.com; zhangmin451@snnu.edu.cn) and weigu@snnu.edu.cn.
authors.forename: Wei
authors.initials: W
authors.lastname: Gu
mesh_terms: D000818:Animals; D004331:Drosophila melanogaster / Q000187:drug effects* / Q000254:growth & development / Q000502:physiology; D005520:Food Preservatives / Q000633:toxicity; D008136:Longevity / Q000187:drug effects; D010226:Parabens / Q000633:toxicity*; D011310:Preservatives, Pharmaceutical / Q000633:toxicity
chemical_list: D005520:Food Preservatives; D010226:Parabens; D011310:Preservatives, Pharmaceutical; C012313:ethyl-p-hydroxybenzoate; C015358:methylparaben
keywords: Drosophila melanogaster; development period; ethylparaben; lifespan; methylparaben