The Effect of Exposure to Atrazine on Dopaminergic Development in Pubertal Male SD Rats

Birth Defects Research. Part B, Developmental and Reproductive Toxicology
Yanshu LiBai-Xiang Li

Abstract

Atrazine (ATR, 2-chloro-4-ethylamino-6-isopropylamino-s-triazine) is used worldwide as a herbicide, and its presence in the environment has resulted in documented human exposure. A lack of strong evidence for genetic heritability of idiopathic Parkinson's disease has focused attention on environmental toxicants in the disease etiology, particularly agrichemicals. Parkinson's disease is associated with advanced age and is characterized by the degeneration of dopaminergic neurons, but it is unclear whether specific neuronal damage could result from insults during development. The juvenile period is particularly vulnerable to environmental agent, therefore, we evaluated the effects of a 28-day exposure to ATR on the dopaminergic system in pubertal rats. Sprague-Dawley rats were treated orally with ATR at 50, 100, and 200 mg/kg bw, daily from postnatal days 27 to 54. In this study, we examined the hypothesis that pubertal exposure to ATR would disrupt the development of the nigrostriatal dopamine (DA) system. The content of DA and levodopa (L-DA) were examined in striatum samples by HPLC-FL, and the mRNA and protein expression of tyrosine hydroxylase, orphan nuclear hormone receptor (Nurr1), Nurr1 interacting protein (NuIP), and cy...Continue Reading

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Citations

Aug 4, 2016·Frontiers in Public Health·Polyxeni Nicolopoulou-StamatiLuc Hens
Dec 14, 2016·Oxidative Medicine and Cellular Longevity·Shuying GaoYang Zhang
Oct 1, 2020·Environmental Science and Pollution Research International·Supriya SharmaFaheem Hyder Pottoo
Aug 8, 2021·International Journal of Molecular Sciences·Tiziana GenoveseRosanna Di Paola

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