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17 beta - Estradiol ( E2 ) and ESR1 - selective agonist PPT , but not ESR2 - selective agonist DPN , induced a rapid increase on total [ (3) H ] - inositol phosphate accumulation in the hippocampus from both rats .
 17 beta - Estradiol, PPT, DPN, [ (3) H ] - inositol phosphate
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 17 beta - Estradiol, PPT, DPN, [ (3) H ] - inositol phosphate