15135
DMA ( III ) significantly increased the BrdU labeling index , a ratio of BrdU labeled cells to non - labeled cells , in the treated knockout group compared to control and wild type treated groups .
 DMA ( III ), BrdU, BrdU
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 DMA ( III ), BrdU, BrdU