16754
We also discovered unique alpha 1 - AR - mediated hypertrophic signaling that was AR subtype - specific with CAM alpha 1A - AR mice secreting atrial naturietic factor and interleukin - 6 ( IL - 6 ) , whereas CAM alpha 1B - AR mice expressed activated nuclear factor - kappa B ( NF - kappa B ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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