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The transplantation of old donor - derived MSCs attenuated apoptosis of cardiomyocytes in the peri - infarct region compared with the control group and the effect was elevated in young donor - derived MSCs ( P less than 0 . 05 ) .
 MSCs, cardiomyocytes, MSCs
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 MSCs, cardiomyocytes, MSCs