28232
Both Lavandula officinalis and Val suppressed brain nitric oxide ( NO ) level of kindled mice in comparison with the control and PTZ group .
 Val, nitric oxide, NO, PTZ
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Val, nitric oxide, NO, PTZ