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In the present study , we aim to investigate the protective effect of trichostatin A ( TSA ) , a specific inhibitor of HDACs , on cisplatin - induced ototoxicity and to determine the differentially expressed genes involved in this process .
 Chemical: trichostatin A; Chemical: TSA; Chemical: cisplatin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: trichostatin A; Chemical: TSA; Chemical: cisplatin