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The perturbation in Fe homeostasis may contribute to the neurotoxicology consequences induced by Pb exposure , and FP1 may play a role in Pb - induced Fe cumulation in the brain .
 Chemical: Fe; Chemical: Pb; Chemical: Pb; Chemical: Fe
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: Fe; Chemical: Pb; Chemical: Pb; Chemical: Fe