14315
NADPH oxidase - mediated oxidative stress leads to oxidation of tetrahydrobiopterin ( BH4 ) , the essential cofactor of eNOS .
 Chemical: NADPH; Chemical: tetrahydrobiopterin; Chemical: BH4
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: NADPH; Chemical: tetrahydrobiopterin; Chemical: BH4