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The acute treatment with LSL 61122 ( 10 mg / kg ) reduced the content of mitochondrial ( pro - apoptotic ) Bax ( - 33 % ) and cytochrome c ( - 31 % ) , which was prevented by idazoxan , an I ( 2 ) - receptor antagonist .
 Chemical: LSL 61122; Chemical: idazoxan
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: LSL 61122; Chemical: idazoxan