4510
Infusions of epinephrine ( 4 mug per kilogram per minute for 6 hours ) increased radiocalcium uptakes into intact myocardium and each of its subcellular components with the mitochondrial fraction showing the most consistent changes when compared to saline - infused control animals ( 4 , 957 vs . 827 counts per minute per gram of dried tissue or fraction ) .
 epinephrine, radiocalcium
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 epinephrine, radiocalcium