13643
Nevertheless , this was not accompanied by a decrease in steroidogenic acute regulatory protein expression , as documented by western blot analysis , and activity of steroidogenic enzymes , as documented by unaffected steroidogenesis in the presence of permeable 22 ( R ) - hydroxycholesterol .
 Chemical: 22 ( R ) - hydroxycholesterol
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: 22 ( R ) - hydroxycholesterol 
Answer:
 Chemical: 22 ( R ) - hydroxycholesterol