807
Conversely , down - regulation of alphaENaC , betaENaC and gammaENaC mRNA expression on day 3 occurred in the presence of high aldosterone concentrations , and was followed by a return of sodium excretion to control values .
 aldosterone, sodium
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 aldosterone, sodium