3586
An enhanced sympathetic nervous system activity with a consequent down regulation of the myocardial beta - adrenergic receptors could , therefore , explain this catecholamine resistance .
 Chemical: catecholamine
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: catecholamine