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25 mg / kg , i . v . thiopental produced anesthesia without altering respiratory rate , increased GABA , decreased glutamate , and had no effect on aspartate or glycine levels compared to controls in rat cortex and brain stem .
 Chemical: thiopental; Chemical: GABA; Chemical: glutamate; Chemical: aspartate; Chemical: glycine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: thiopental; Chemical: GABA; Chemical: glutamate; Chemical: aspartate; Chemical: glycine