11822
To determine if the up - regulation of PDGF beta receptors is neuroprotective , primary hippocampal neurons were incubated with the 5 - HT7 receptor agonist , LP 12 , for 24 h .
 Chemical: LP 12
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: LP 12