Abstract：
:Atrazine is well known to be a biologically hazardous substance with toxic effects, but atrazine-induced neurotoxicity remains unclear. The aim of this study was to investigate the mechanisms of atrazine-induced cerebellar toxicity. To determine atrazine-exerted potential neurotoxicity, quails were treated with 50, 250 and 500 mg/kg atrazine by gavage administration for 45 days. Notably, the changes of cytochrome P450 enzyme system (CYP450s) were observed in atrazine-exposed quails. The contents of cytochrome P450 (CYP450) and Cytochrome b5 (Cyt b5) and the activities of NADPH-cytochrome c reductase (NCR), aminopyrin N-demethylase (APND) and aniline-4-hydeoxylase (AH) were increased and erythromycin N-demethylase (ERND) was decreased in quail cerebellum. Nuclear xenobiotic receptors (NXRs) and the transcriptions of NXRs-related target molecules were influenced in cerebellum. Atrazine disrupted the CYP450s balance in quail cerebellum. These results suggested that atrazine-induced cerebellar toxicity in birds was associated with activating PXR/CAR pathway responses and disrupting cytochrome P450 homeostasis. This study provided novel evidences that atrazine exposure induced cerebellar toxicity.
journal_name
Chemospherejournal_title
Chemosphereauthors
Xia J,Qin L,Du ZH,Lin J,Li XN,Li JLdoi
10.1016/j.chemosphere.2016.12.075subject
Has Abstractpub_date
2017-03-01 00:00:00pages
259-264eissn
0045-6535issn
1879-1298pii
S0045-6535(16)31807-0journal_volume
171pub_type
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