4904
Microinjection into the RVLM of both control and SIHR groups of 7 - Ni ( 0 . 05 pmol / 100 nl , nNOS inhibitor ) or Methylene Blue [ 100 pmol / 100 nl , an inhibitor of soluble guanylate cyclase ( sGC ) ] suppressed the OXA - induced increase of SBP and HR , whereas microinjection of AG ( 1 , 10 , 100 pmol / 100 nl ) had no obvious effects on the OXA - induced increase of SBP and HR .
 Chemical: Methylene Blue; Chemical: guanylate
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: Methylene Blue; Chemical: guanylate