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Western blotting was used to evaluate the protein expression of LOX - 1 and Bcl - 2 , as well as caspase - 3 cleavage , p38 - mitogen - activated protein kinase ( p38MAPK ) phosphorylation .
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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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