7633
However , when the central neurons were dyed with fluo - 5N and incubated with 2 - APB , [ Ca ( 2 + ) ] i decreased transiently by treated of compound 6h .
 2 - APB, Ca ( 2 + )
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 2 - APB, Ca ( 2 + )