6626
ERs and MLLs play critical roles in determining the cholesterol uptake by steroidogenic tissues / cells , and their knockdown suppressed the E2 - induced cholesterol uptake efficiencies of the cells .
 cholesterol, cholesterol
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 cholesterol, cholesterol