23817
In the case of THC treatment 2h before MI , fractional shortening was elevated ( 37 +/- 4 % vs . 42 +/- 1 % , p < 0 . 04 ) , troponin T leakage to the blood was reduced ( 14 +/- 3ng / ml vs . 10 +/- 4ng / ml , p < 0 . 008 ) , infarct size decreased ( 29 +/- 4 % vs . 23 +/- 4 % , p < 0 . 02 ) , and the accumulation of neutrophils to the infarct area declined ( 36 +/- 10cells / field vs . 19 +/- 4cells / field , p < 0 . 007 ) in THC - compared to vehicle - pretreated mice , 24h after MI .
 Chemical: THC; Chemical: THC
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: THC; Chemical: THC