PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12564931-0 2003 Hepatocyte apoB-containing lipoprotein secretion is decreased by the grapefruit flavonoid, naringenin, via inhibition of MTP-mediated microsomal triglyceride accumulation. naringenin 91-101 metallothionein 1B Homo sapiens 121-124 12564931-1 2003 Naringenin, the principal flavonoid in grapefruit, reduces plasma lipids in vivo and inhibits apoB secretion, cholesterol esterification, and MTP activity in HepG2 human hepatoma cells. naringenin 0-10 metallothionein 1B Homo sapiens 142-145 12564931-3 2003 We therefore hypothesized that inhibition of TG accumulation in the ER lumen, secondary to MTP inhibition, is the primary mechanism whereby naringenin blocks lipidation and subsequent secretion of apoB. naringenin 140-150 metallothionein 1B Homo sapiens 91-94 12564931-7 2003 Newly synthesized CE accumulation in the lumen was reduced by 80% and 33% with naringenin and BMS-197636, respectively, demonstrating for the first time that MTP is involved in CE accumulation in the microsomal lumen. naringenin 79-89 metallothionein 1B Homo sapiens 158-161 12564931-11 2003 Taken together, our results indicate that naringenin inhibits the lipidation and subsequent secretion of apoB-containing lipoproteins primarily by limiting the accumulation of TG in the ER lumen, secondary to MTP inhibition. naringenin 42-52 metallothionein 1B Homo sapiens 209-212