4723
Male Sprague Dawley rats with abdominal aortic constriction ( AAC ) or a sham operation received an intraperitoneal injection of MG132 ( 0 . 1 mg kg - (1) day - (1) ) or vehicle for 16 weeks .
 Chemical: MG132
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: MG132