24280
We examined the effect of chronic restraint stress ( CRS ; 20 min / day ) as compared to control ( CTRL ) conditions for 14 days , on : 1 ) restraint - induced ACTH and corticosterone ( CORT ) secretion in rats pretreated with vehicle or SB - 656104 ( a 5 - HT7 receptor antagonist ) ; 2 ) 5 - HT7 receptor - like immunoreactivity ( 5 - HT7 - LI ) and protein in the hypothalamic paraventricular nucleus ( PVN ) and adrenal glands ( AG ) ; 3 ) baseline levels of 5 - HT and 5 - hydroxyindolacetic acid ( 5 - HIAA ) , and 5 - HIAA / 5 - HT ratio in PVN and AG ; and 4 ) 5 - HT - like immunoreactivity ( 5 - HT - LI ) in AG and tryptophan hydroxylase ( TPH ) protein in PVN and AG .
 corticosterone, CORT, SB - 656104, 5 - HT, 5 - hydroxyindolacetic acid, 5 - HIAA, 5 - HIAA, 5 - HT, 5 - HT, 5 - HT, tryptophan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 corticosterone, CORT, SB - 656104, 5 - HT, 5 - hydroxyindolacetic acid, 5 - HIAA, 5 - HIAA, 5 - HT, 5 - HT, 5 - HT, tryptophan