19961
Activation of PTH1R promotes regulation of multiple signaling pathways , including Gs / cAMP / PKA , Gq / calcium / PKC , beta - arrestin recruitment and ERK1 / 2 phosphorylation as well as receptor internalization but their role in promoting anabolic and catabolic actions of PTH ( 1 - 34 ) are unclear .
 Chemical: cAMP; Chemical: calcium
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: calcium