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To evaluate the protective effects of alpha - lipoic acid on the kidneys of Goto - Kakisaki ( GK ) diabetic rats , ten GK diabetic rats were randomly divided into a diabetic control group and a lipoic acid - treated diabetic group with alpha - lipoic acid 35 mg . Kg - 1 intraperitoneal injections .
 Chemical: alpha - lipoic acid; Chemical: lipoic acid; Chemical: alpha - lipoic acid
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: alpha - lipoic acid; Chemical: lipoic acid; Chemical: alpha - lipoic acid