307
In the absence of aldosterone , the intracellular Na+ , K+ and Ca2+ concentrations and the cell volume decreased significantly, but remained constant when aldosterone (1.4 nmol/l) was added to the incubation medium .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 None