20473
Quantitative realtime PCR confirmed that the increase in beta - catenin and cyclin D1 mRNA in the colon induced by PhIP was ameliorated in rats pre - fed with Chlorella ( P = 0 . 052 for beta - catenin ; P = 0 . 005 for cyclin D1 ) .
 PhIP
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 PhIP