9261
Dose-response studies showed that 10(-7) to 10(-6) mol/L 9-cis RA (12 hours) resulted in peak levels of C/EBP epsilon mRNA ; but even 10(-10) mol/L 9-cis RA increased levels of these transcripts.
 ( RNA: C/EBP epsilon mRNA, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( RNA: C/EBP epsilon mRNA, None) 