19153
In the heart , cAMP participates in the fine control of excitation - contraction coupling , hence , any disregulation of this signaling cascade can lead to cardiac disease .
 Chemical: cAMP
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: cAMP