PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9406821-5 1997 By northern blotting, the steady-state mRNA levels for HMG-CoA reductase, HMG-CoA synthase, farnesyl pyrophosphate synthase, and squalene synthase, key enzymes for cholesterol synthesis, all increased significantly after barrier disruption by either acetone or tape stripping. Cholesterol 164-175 farnesyl-diphosphate farnesyltransferase 1 Homo sapiens 129-146