4936
The functional analysis of differentially transcribed genes suggests that IBU can interfere with various signalling pathways in clams , such as arachidonic acid metabolism , apoptosis , peroxisomal proliferator - activated receptors , and nuclear factor - kappa B .
 Chemical: IBU; Chemical: arachidonic acid
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: IBU; Chemical: arachidonic acid