2257
To this end , doxorubicin ( 15 mug / g body wt ) was injected intravenously into gene - targeted mice lacking SGK1 ( sgk1 ( - / - ) ) and their wild - type littermates ( sgk1 ( + / + ) ) .
 doxorubicin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 doxorubicin