2124
Both the lactate dehydrogenase ( LDH ) release and the tetrazolium - based ( MTT ) assays revealed a concentration - and time - dependent neuronal death and mitochondrial dysfunction after exposure to both drugs .
 Chemical: lactate; Chemical: tetrazolium; Chemical: MTT
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: lactate, tetrazolium, MTT 
Answer:
 Chemical: lactate; Chemical: tetrazolium; Chemical: MTT