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In addition , PD female rats showed increased ( 3 ) H - MK - 801 binding in the striatum and hippocampus , but not in the cortex .
 H, MK - 801
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 H, MK - 801