2709
STZ also significantly increased the level of ROS , nitrite , Ca ( 2 + ) and reduced the mitochondrial activity in synaptosomal preparation illustrating free radical generation and excitotoxicity .
 Chemical: STZ; Chemical: nitrite; Chemical: Ca; Disease: excitotoxicity
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: STZ; Chemical: nitrite; Chemical: Ca; Disease: excitotoxicity