307
CONCLUSIONS: There is no obvious regulation of the number of glucocorticoid receptors by plasma cortisol concentrations in vivo.
 protein: glucocorticoid receptors
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: glucocorticoid receptors 
Answer:
 protein: glucocorticoid receptors