24657
Elevated SERCA2a gene expression caused by a decreased transcription factor Egr - 1 to Sp1 ratio was associated with accelerated relaxation and enhanced contractility in MK2 / 3 ( - / - ) cardiomyocytes , concomitant with improved force parameters in MK2 / 3 ( - / - ) soleus muscle .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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