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The present study was to evaluate the cholesterol - lowering effect of two novel plant stanol derivatives and its potential molecular mechanism in hyper - cholesterol mice induced by a high - cholesterol diet .
 Chemical: cholesterol; Chemical: stanol; Chemical: cholesterol; Chemical: cholesterol
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: cholesterol; Chemical: stanol; Chemical: cholesterol; Chemical: cholesterol