9295
Finally , some bile acids , such as UDCA , or low concentrations of hydrophobic bile acids , can protect colon cells against apoptosis induced by high concentrations of cytotoxic bile acids , suggesting a dual behavior of these agents as pro - death or pro - survival molecules .
 Chemical: bile acids; Chemical: UDCA; Chemical: bile acids; Chemical: bile acids
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 acids; Chemical: UDCA; Chemical: bile acids; Chemical: bile acids