23380
Compounds 8 b and 10 c selectively inhibited HDAC6 at the nanomolar level , whereas the other hydroxamates effected an increase in acetyl - alpha - tubulin levels in human acute myeloid leukemia U937 cells .
 Chemical: hydroxamates
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: hydroxamates 
Answer:
 Chemical: hydroxamates