title: Histopathological changes and antioxidant response in brain and kidney of common carp exposed to atrazine and chlorpyrifos.
abstract: We investigated oxidative stress response and histopathological changes in the brain and kidney of the common carp after a 40-d exposure to CPF and ATR, alone or in combination, and a 20-d recovery. Superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) activities and malondialdehyde (MDA) content were measured using standard assays. Our results indicated that exposure to ATR, CPF or a combination of the two for 40 d induced significant changes in antioxidant enzyme (SOD, CAT and GSH-Px) activities and MDA content in the brain and kidney of the common carp. Pathological changes included tissue damage that was more severe with increased of exposure dose. To our knowledge, this is the first report to study oxidative stress and histopathological effects caused by subchronic exposure to ATR, CPF and ATR/CPF combination on common carp. The information presented in this study may be helpful to understanding the mechanisms of ATR-, CPF- and ATR/CPF combination-induced oxidative stress in fish.
authors.affiliation: College of Veterinary Medicine, Northeast Agricultural University, 59 Mucai Street, Harbin 150030, China.
authors.forename: Houjuan
authors.initials: H
authors.lastname: Xing
authors.forename: Shu
authors.initials: S
authors.lastname: Li
authors.forename: Zhilei
authors.initials: Z
authors.lastname: Wang
authors.forename: Xuejiao
authors.initials: X
authors.lastname: Gao
authors.forename: Shiwen
authors.initials: S
authors.lastname: Xu
authors.forename: Xiaolong
authors.initials: X
authors.lastname: Wang
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000378:metabolism*; D001280:Atrazine / Q000633:toxicity*; D001921:Brain / Q000166:cytology / Q000187:drug effects* / Q000201:enzymology / Q000378:metabolism; D002347:Carps / Q000378:metabolism*; D002374:Catalase / Q000378:metabolism; D004390:Chlorpyrifos / Q000633:toxicity*; D005979:Glutathione Peroxidase / Q000378:metabolism; D007668:Kidney / Q000166:cytology / Q000187:drug effects* / Q000201:enzymology / Q000378:metabolism; D008315:Malondialdehyde / Q000378:metabolism; D013482:Superoxide Dismutase / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D000975:Antioxidants; D014874:Water Pollutants, Chemical; D008315:Malondialdehyde; D002374:Catalase; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase; D004390:Chlorpyrifos; D001280:Atrazine