21356
Studies also suggest that ligand activation of LXRs in Tg2576 mice enhanced , the expression of genes linked with cholesterol efflux e . g . apoe , abca - 1 , down regulated APP processing and A beta production with significant improvement in memory functions .
 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