8751
RESULTS : Horses with colic had significantly higher fibrinogen concentration , greater alpha 2AP and protein C activities , and longer PT and APTT than did healthy horses .
 fibrinogen, alpha 2AP, protein C
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 fibrinogen, alpha 2AP, protein C