20047
The primary ischemic stimulus for VEGF , hypoxia - inducible factor 1 alpha ( HIF1 alpha ) , was similarly reduced by dietary soy 4 hours after transient middle cerebral artery occlusion in both the cortex and striatum .
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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