7715
Protective effects of Tartary buckwheat ( TB ) and common buckwheat ( CB ) on amyloid beta ( A beta ) - induced impairment of cognition and memory function were investigated in vivo in order to identify potential therapeutic agents against Alzheimer ' s disease ( AD ) and its associated progressive memory deficits , cognitive impairment , and personality changes .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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