1559
Atorvastatin ( Ato ) possesses pleiotropic properties that have been reported to improve endothelial function through increased availability of NO and reduced O2 - production in various forms of hypertension .
 Atorvastatin, Ato, NO, O2 -, hypertension
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Atorvastatin, Ato, NO, O2 -, hypertension