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In summary , our results showed that betaine pretreatment attenuated isoproterenol - induced acute myocardial ischemia via the regulation of STAT3 and apoptotic pathways .
 Chemical: betaine; Chemical: isoproterenol; Disease: myocardial ischemia
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: betaine; Chemical: isoproterenol; Disease: myocardial ischemia