16758
Because alpha 1A / B double knockout mice fail to develop hypertrophy in response to IL - 6 , our results suggest that IL - 6 is a major mediator of alpha 1A - AR cardiac hypertrophy .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None