title: Apolipoprotein B (apoB) concentrations in lipoproteins in cows.
abstract: The concentrations of apolipoprotein B (apoB)-48 and apoB-100 in triglyceride-rich lipoproteins (TRL), intermediate density lipoprotein (IDL), and low density lipoprotein (LDL) fractions separated by gel permeation chromatography were determined in Holstein and Japanese black cows by enzyme-linked immunosorbent assay (ELISA). A significant correlation (p < 0.01) was observed between apoB-48 in TRL and plasma triglyceride (TG) levels in both Holstein and Japanese black cows. Additionally, apoB-48 in TRL and plasma TG levels in Holstein cows were significantly lower (p < 0.01) than those in Japanese black cows. These results suggested that TG derived from intestinal (exogenous) TRL rather than from liver (endogenous) TRL was the major source of milk fat.
authors.affiliation: Department of Veterinary Clinical Pathobiology, Faculty of Agriculture, University of Tokyo, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Uchide
authors.forename: Y
authors.initials: Y
authors.lastname: Tohya
authors.forename: K
authors.initials: K
authors.lastname: Onda
authors.forename: N
authors.initials: N
authors.lastname: Matsuki
authors.forename: M
authors.initials: M
authors.lastname: Inaba
authors.forename: K
authors.initials: K
authors.lastname: Ono
mesh_terms: D000818:Animals; D000911:Antibodies, Monoclonal; D053283:Apolipoprotein B-48; D001055:Apolipoproteins B / Q000097:blood*; D002417:Cattle / Q000097:blood*; D002850:Chromatography, Gel; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D007564:Japan; D008074:Lipoproteins / Q000097:blood*; D053419:Lipoproteins, IDL; D008077:Lipoproteins, LDL / Q000097:blood; D013045:Species Specificity; D014280:Triglycerides / Q000097:blood
chemical_list: D000911:Antibodies, Monoclonal; D053283:Apolipoprotein B-48; D001055:Apolipoproteins B; D008074:Lipoproteins; D053419:Lipoproteins, IDL; D008077:Lipoproteins, LDL; D014280:Triglycerides