27397
Collectively , these findings provide evidence that arsenic causes prolonged activation of Nrf2 through autophagy dysfunction , possibly providing a similar scenario to constitutive activation of Nrf2 found in certain human cancers .
 arsenic
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 arsenic