4121
The rate of decrease of PRA after REM onset closely approximates the most recent estimations of PRA half - life , which suggests that REM onset is associated with a virtual cessation in renin production .
 GENE: renin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: renin