11017
This review mainly focuses on the current status of islet transplantations , potential preventive strategies used to reduce oxidative stress - mediated toxicity in islet grafts , and use of molecular imaging as a tool to quantitatively evaluate the functional status of the transplanted islets in living animals .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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