10267
Exclusive bilateral SCN lesions in male C57Bl / 6J mice , as verified by immunochemistry , showed a small but significant increase in body weight ( + 17 % ) , which was accounted for by an increase in fat mass .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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