Document Detail


Effects of lecithin: Cholesterol acyltransferase genotypes, enzyme levels, and activity on high-density lipoprotein levels.
MedLine Citation:
PMID:  21600519     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
BACKGROUND: Lecithin:cholesterol acyltransferase (LCAT) is one of the key enzymes controlling cholesterol homeostasis and plays a primary role in high-density lipoprotein cholesterol (HDL-C) maturation.
OBJECTIVE: The aim of our study was to evaluate the effects of LCAT gene polymorphisms 511C/T (exon4), 4886C/T (rs5923), and 608C/T (rs5922) on LCAT enzyme level, activity, and HDL-C levels.
METHODS: The study population was selected from consecutive subjects with low (<35 mg/dL) and high HDL-C levels (>65 mg/dL) seen in our lipid clinic. LCAT polymorphisms were analyzed with a restriction fragment length polymorphism assay. LCAT activity and levels were measured by colorimetric enzymatic and enzyme-linked immunoassay methods, respectively.
RESULTS: The 4886C/T polymorphism was the most commonly observed variant of LCAT gene. T-allele frequencies in subjects with low (n = 50) and high (n = 50) HDL-C were 0.54 and 0.37, respectively (P = .019). TT genotype was more common among low HDL-C group (30% vs 14%, P = .05). The effects of LCAT enzyme appeared to depend on the HDL-C level. In subjects with low HDL-C, LCAT enzyme levels correlated positively with body mass index (P < .001, r = 0.544), HDL-C (P = .006, r = 0.404), triglycerides (P = .001, r = 0.487), total cholesterol (P < .001, r = 0.541), and low-density lipoprotein-cholesterol (P = .001, r = 0.477) levels. LCAT activity correlated positively with fasting glucose levels (P = .008, r = 0.390).
CONCLUSION: LCAT genotype, enzyme level, and activity modulate HDL-C metabolism, particularly among subjects with low HDL-C levels.
Authors:
Deniz Agirbasli; Beyazit Cirakoglu; Fatih Eren; Mutlu Sumerkan; Sukru Aksoy; Cenk Aral; Mehmet Agirbasli
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Publication Detail:
Type:  Journal Article     Date:  2011-03-01
Journal Detail:
Title:  Journal of clinical lipidology     Volume:  5     ISSN:  1933-2874     ISO Abbreviation:  J Clin Lipidol     Publication Date:    2011 May-Jun
Date Detail:
Created Date:  2011-05-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101300157     Medline TA:  J Clin Lipidol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  152-8     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 National Lipid Association. Published by Elsevier Inc. All rights reserved.
Affiliation:
Department of Medical Biology and Genetics, Marmara University School of Medicine, Istanbul, Turkey; Department of Medical Biology, Acibadem University School of Medicine, Istanbul, Turkey.
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