Relation between cholesterol ester transfer protein activities and lipoprotein cholesterol in patients with hypercholesterolemia and combined hyperlipidemia

F. Tato, Gloria L Vega, A. R. Tall, Scott M Grundy

Research output: Contribution to journalArticle

92 Scopus citations

Abstract

Cholesterol ester transfer protein (CETP) promotes the transfer of cholesterol esters among different lipoprotein classes-high-density lipoproteins (HDL), very-low-density lipoproteins, intermediate-density lipoproteins, and low-density lipoproteins (LDL). The current study was carried out to determine whether CETP activities are correlated with lipoprotein cholesterol levels in a large number of patients having elevated LDL cholesterol and normal triglycerides (hypercholesterolemia) and elevated LDL cholesterol and high triglycerides (combined hyperlipidemia). Compared with 50 normolipidemic male patients, 113 hypercholesterolemic patients had a 42% higher mean activity of CETP, and approximately 60% of these patients had CETP activities outside the normal range. A similar elevation of CETP was observed in 47 patients with combined hyperlipidemia. Furthermore, in those with combined hyperlipidemia, CETP activities were highly correlated with LDL cholesterol, non-HDL cholesterol, and non-HDL/HDL ratios. Similar high correlations were obtained by combining normotriglyceridemic patients with and without elevated LDL cholesterol. Since patients with elevated LDL cholesterol had a significantly lower mean level of HDL cholesterol, a high CETP activity also was related to a reduced HDL cholesterol level. Our results are consistent with this concept, although they do not constitute final proof that high CETP activities contribute to elevated cholesterol concentrations and reduced HDL cholesterol levels in patients with hypercholesterolemia and in those with combined hyperlipidemia.

Original languageEnglish (US)
Pages (from-to)112-120
Number of pages9
JournalArteriosclerosis, thrombosis, and vascular biology
Volume15
Issue number1
DOIs
StatePublished - Jan 1995

Keywords

  • cholesterol ester transfer protein
  • combined hyperlipidemia
  • hypercholesterolemia

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Fingerprint Dive into the research topics of 'Relation between cholesterol ester transfer protein activities and lipoprotein cholesterol in patients with hypercholesterolemia and combined hyperlipidemia'. Together they form a unique fingerprint.

  • Cite this