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Pranlukast ( 0 . 6 mu M ) also prevented LTD4 ( 20 nM ) - induced amyloidogenesis in the cultured neurons in vitro .
 Chemical: Pranlukast; Chemical: LTD4
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: Pranlukast; Chemical: LTD4