3722
In the present study , the effects of manipulating the activity of the gamma - aminobutyric acid ( GABA ) - mediated synaptic inhibition within the substantia nigra on seizures produced by pilocarpine in rats , were investigated .
 Chemical: gamma - aminobutyric acid; Chemical: GABA; Disease: seizures; Chemical: pilocarpine
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: gamma - aminobutyric acid; Chemical: GABA; Disease: seizures; Chemical: pilocarpine