PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1313035-0 1992 The effect of low density lipoproteins, cholesterol, and 25-hydroxycholesterol on apolipoprotein B gene expression in HepG2 cells. Hydroxycholesterols 60-78 apolipoprotein B Homo sapiens 82-98 1313035-13 1992 These results demonstrate that in HepG2 cells the synthesis and secretion of ApoB and cholesteryl esters are tightly coupled and that 25-hydroxycholesterol increased the concentration of ApoB-containing lipoproteins primarily by stimulating their production rather than reducing their catabolism. Hydroxycholesterols 137-155 apolipoprotein B Homo sapiens 187-191