5406
To investigate the role of kinins in insulin sensitivity , we treated 4 - week - old spontaneously hypertensive rats with either an angiotensin converting enzyme inhibitor ( enalapril ) , an alpha 1 - blocker ( doxazosin ) , or an angiotensin II antagonist ( losartan ) for 3 weeks .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
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