title: [Lipoproteins of blood serum and the activity of angiotensin-converting enzyme].
abstract: We studied the influence of native lipoproteins on the activity of the angiotensin-converting enzyme (ACE). Lipoproteins of blood serum were inhibiting the activity of soluble ACE. The ACE activity in blood serum was found to depend on a concentration of total cholesterol and of triglycerides. The maximal ACE activity was observed at a concentration of total cholesterol of 9.41 mM/l and at a concentration of triglycerides of 3.05 mM/l. The albumin-linked non-etherified fatty acids affected the ACE activity neither in water solutions nor in presence of lipoprotein complexes. According to the study, the progression of most frequent atherogenic hyperlipidemia results in a 2-fold increase of the ACE activity. It is suggested that an intensified ACE activity in blood plasma can be regarded as an integral component of biochemical disorders in metabolic syndrome.
authors.forename: B Iu
authors.initials: BIu
authors.lastname: Al'tshuler
authors.forename: A P
authors.initials: AP
authors.lastname: Roĭtman
authors.forename: V V
authors.initials: VV
authors.lastname: Dolgov
authors.forename: A V
authors.initials: AV
authors.lastname: Sokolov
mesh_terms: D000465:Algorithms; D000818:Animals; D002784:Cholesterol / Q000097:blood; D005260:Female; D006801:Humans; D008074:Lipoproteins / Q000097:blood*; D008297:Male; D007703:Peptidyl-Dipeptidase A / Q000097:blood*; D013552:Swine; D014280:Triglycerides / Q000097:blood
chemical_list: D008074:Lipoproteins; D014280:Triglycerides; D002784:Cholesterol; D007703:Peptidyl-Dipeptidase A