11865
Specifically , light microscopy revealed a decrease in tyrosine hydroxylase - expressing ( dopamine ) neurons in the midbrain of BPA - exposed fetuses and electron microscopy identified a reduction in spine synapses in the CA1 region of hippocampus .
 Chemical: tyrosine; Chemical: dopamine; Chemical: BPA
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: tyrosine; Chemical: dopamine; Chemical: BPA