@catherinemiller Looking at the text, I don’t see a specific instance that explicitly mentions epinephrine as the 1st messenger
@catherinemiller To go through suggestions in a timely manner, we ask authors to reply within 3 days. I will close this suggestion for now, but if you still have a concern with it, please let me know. Looking at chapter 3, there is a section on GPCR within “3.2 Biosignaling,” which seems to be why this note was most closely associated with chapter 3. Granted, this note’s content was slightly changed via another suggestion