Developmental exposure to the Parkinson’s disease-associated organochlorine pesticide dieldrin alters dopamine neurotransmission in α-synuclein pre-formed fibril (PFF)-injected mice

Parkinson’s disease (PD) is the fastest-growing neurological diseases worldwide, with increases outpacing aging and most rapid in recently industrialized areas, suggesting the role of environmental factors. Together, epidemiological studies, post-mortem analysis and mechanistic studies suggest that exposure to persistent organic pollutants, including the organochlorine pesticide dieldrin, increases PD risk. In mouse models, developmental dieldrin exposure causes male-specific exacerbation of neuronal susceptibility to MPTP and synucleinopathy. Specifically, developmental dieldrin exposure induces male-specific exacerbation of toxicity in the α-synuclein (α-syn) pre-formed fibril (PFF) model with increased deficits in striatal dopamine (DA) turnover and motor deficits on the challenging beam. Here, we hypothesized that alterations in DA handling contribute to the observed changes and assessed vesicular monoamine transporter 2 (VMAT2) function and DA release in this dieldrin/PFF two-hit m..., , GraphPad Prism files (pzfx) can be opened in GraphPad Prism or viewed in the free Viewer mode, or data can be extracted by viewing files in a text editor. 
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