12027
That activation of LTCCs causes arterial relaxation or contraction depending on the Ca ( 2 + ) status apparently exemplifies how the same messenger fulfils opposing physiological functions in a given cell .
 Chemical: Ca ( 2 + )
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: Ca ( 2 + )