Phthalate diversity in eggs and associations with oxidative stress in the European herring gull (Larus argentatus). (August 2021)

• Record Type: Journal Article
• Authors: Allen, Simon F.; Ellis, Francesca; Mitchell, Christopher; Wang, Xianyu; Boogert, Neeltje J.; Lin, Chun-Yin; Clokey, Joseph; Thomas, Kevin V.; Blount, Jonathan D.
• Is Part Of: Marine pollution bulletin. Volume 169(2021)
• Publication Date: 2021-08
• Subjects: Antioxidants -- Intergenerational effects -- Malondialdehyde -- Plastic pollution -- Vitamin E; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2021.112564
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: Phthalates are plastic-derived contaminants that are ubiquitous in natural environments and function as pro-oxidants. The extent to which phthalates bioaccumulate in wild animals and associations with oxidative stress are poorly understood. Here, we describe relationships between maternally-derived phthalates, lipid peroxidation (malondialdehyde, MDA) and the dietary antioxidant α-tocopherol in eggs of European herring gulls ( Larus argentatus ) in Cornwall, UK. Up to six phthalate parent compounds and four phthalate metabolites were detected. Egg concentrations of MDA were positively associated with dicyclohexyl phthalate (DCHP) and negatively associated with α-tocopherol, suggesting that DCHP is associated with oxidative stress in gulls. The consequences of phthalate exposure in ovo for offspring development warrants study. Highlights: Several phthalate compounds detected in eggs of European herring gull DCHP correlated positively with lipid peroxidation and negatively with vitamin E Phthalate exposure is associated with oxidative stress.