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Furthermore , in the rat spinal cord 1 . 0 % ropivacaine induced the down - regulation of voltage - dependent anion channel 2 ( VDAC2 ) and mitochondrial pyruvate dehydrogenase subunit alpha ( ODPA ) , the upregulation of myelin basic protein ( MBP ) , the disappearance of myelin transcription factor 1 ( MYT1 ) and the appearance of heat shock protein 25 ( HSP25 ) .
 Chemical: ropivacaine; Chemical: pyruvate
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: ropivacaine; Chemical: pyruvate