title: Prebeta1-high-density lipoprotein (prebeta1-HDL) concentration can change with low-density lipoprotein-cholesterol (LDL-C) concentration independent of cholesteryl ester transfer protein (CETP).
abstract: To clarify whether prebeta1-high-density lipoprotein (prebeta1-HDL) concentration changes with low-density lipoprotein-cholesterol (LDL-C) concentration independent of cholesteryl ester transfer protein (CETP), we determined prebeta1-HDL concentration by native two-dimensional gel electrophoresis in 58 subjects with normal triglyceride and HDL-cholesterol concentrations. We also measured LDL-C and CETP concentrations. In 17 subjects, a second blood sample was taken 1-6 months after the first. We found that prebeta1-HDL concentration was positively correlated with LDL-C concentration (r=0.529, P<0.0001) and with CETP mass (r=0.398, P<0.01). In 17 patients, Deltaprebeta1-HDL was positively correlated with DeltaLDL-C (r=0.635, P<0.01), but not with DeltaCETP mass (r=0.275). In conclusion, prebeta1-HDL concentration changes with LDL-C concentration independent of CETP. These results suggest that prebeta1-HDL concentration may reflect the balance between several regulatory factors, including LDL-C and CETP concentrations.
authors.affiliation: Department of Laboratory Medicine, Niigata University School of Medicine, Asahimachi 1-757, Niigata, Japan. miida@med.niigata-u.ac.jp
authors.forename: T
authors.initials: T
authors.lastname: Miida
authors.forename: K
authors.initials: K
authors.lastname: Ozaki
authors.forename: T
authors.initials: T
authors.lastname: Murakami
authors.forename: T
authors.initials: T
authors.lastname: Kashiwa
authors.forename: T
authors.initials: T
authors.lastname: Yamadera
authors.forename: T
authors.initials: T
authors.lastname: Tsuda
authors.forename: K
authors.initials: K
authors.lastname: Inano
authors.forename: M
authors.initials: M
authors.lastname: Okada
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D002352:Carrier Proteins / Q000097:blood*; D053480:Cholesterol Ester Transfer Proteins; D008078:Cholesterol, LDL / Q000097:blood*; D015180:Electrophoresis, Gel, Two-Dimensional; D005260:Female; D006023:Glycoproteins; D053442:High-Density Lipoproteins, Pre-beta; D006801:Humans; D006937:Hypercholesterolemia / Q000097:blood; D008075:Lipoproteins, HDL / Q000097:blood*; D008297:Male; D008875:Middle Aged; D008954:Models, Biological; D012016:Reference Values; D012737:Sex Factors
chemical_list: C506642:CETP protein, human; D002352:Carrier Proteins; D053480:Cholesterol Ester Transfer Proteins; D008078:Cholesterol, LDL; D006023:Glycoproteins; D053442:High-Density Lipoproteins, Pre-beta; D008075:Lipoproteins, HDL