4066
Furthermore , the distribution of the values of the four transcripts investigated ( c - fos , IL - 1 beta , IL - 8 , and GAPDH ) was wide and the RNA instability between samples separated by 24h were similar .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None