29736
The renin - angiotensin - aldosterone system participates in the impaired coronary relaxation in aged SHR , but does not participate in deleterious effects under increased salt intake , indicating that age could differentiate the effects of high sodium intake in coronary arteries of SHR .
 aldosterone, sodium
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 aldosterone, sodium