5738
Various angiotensin ( Ang ) peptides , including Ang II , Ang III , and Ang IV , were detected in the spleen by a radioimmunoassay coupled with HPLC separation , and these endogenous peptides stimulated a cAMP signaling , which has no crosstalk with cGMP pathway .
 Chemical: cAMP; Chemical: cGMP
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; Chemical: cGMP