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Bile acid gavage ( TUDCA / UDCA ) in diet - induced obese rats , elevated serum TUDCA and concomitantly reduced hepatic steatosis and ER stress ( CHOP mRNA ) .
 Chemical: Bile acid; Chemical: TUDCA; Chemical: UDCA; Chemical: TUDCA
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: Bile acid; Chemical: TUDCA; Chemical: UDCA; Chemical: TUDCA