20044
Soy also inhibited the ischemia - induced increase in cortical VEGF and VEGF receptor ( VEGFR ) - 2 protein expression observed 4 and 24 hours after stroke , although mRNA levels increased .
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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:
 None