title: Isolation and characterization of the haemolymph lipoproteins of Triatoma infestans.
abstract: 1. Three lipoproteins differing in hydrated densities were isolated by ultracentrifugal procedures from the haemolymph of adult and fasted Triatoma infestans. 2. They are the high density lipoprotein HDL (d = 1.115-1.152) and the two very high density lipoproteins VHDL-I (d = 1.190-1.231) and VHDL-II (d = 1.245-1.260). HDL was the predominant lipoprotein. 3. The total lipid content expressed as % of lipoprotein weight in HDL, VHDL-I an VHDL-II was 30.1, 7.8 ad 2.9% respectively. Diacylglycerols are the predominant lipids of HDL (38.7%) and VHDL-I (27.0%) but only amount of 6.2% in VHDL-II. 4. Triacylglycerols are minor components (about 6.0%) of all fractions. 5. The phospholipids (phosphatidylethanolamine and phosphatidylcholine), sterols, sterol esters and hydrocarbons were present in all lipoprotein fractions. 6. Phospholipids and hydrocarbons were the most abundant lipids of VHDL-II.
mesh_terms: D000818:Animals; D002499:Centrifugation, Density Gradient; D005227:Fatty Acids / Q000032:analysis; D006458:Hemolymph / Q000032:analysis*; D008055:Lipids / Q000032:analysis; D008074:Lipoproteins / Q000097:blood*; D008075:Lipoproteins, HDL / Q000097:blood; D011506:Proteins / Q000032:analysis; D014224:Triatoma / Q000032:analysis*; D014225:Triatominae / Q000032:analysis*
chemical_list: D005227:Fatty Acids; D008055:Lipids; D008074:Lipoproteins; D008075:Lipoproteins, HDL; D011506:Proteins