15698
The Western blot analysis demonstrated no significant changes in proapoptotic Bcl - 2 - associated X ( Bax ) and anti - apoptotic Bcl - 2 expression during the time course of the study .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None