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To further investigate the enhanced adult susceptibility by neonatal LPS exposure to rotenone neurotoxicity , we used our neonatal rat model of LPS exposure ( 1mg / kg , intracerebral injection in postnatal day 5 , P5 , neonatal rats ) to examine the protein levels of alpha - synuclein and dopamine transporters ( DAT ) in the adult rat .
 Chemical: rotenone; Chemical: dopamine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: rotenone; Chemical: dopamine