Document Detail


Measurement of serum remnant-like lipoprotein particle-triglyceride (RLP-TG) and RLP-TG/total TG ratio using highly sensitive triglyceride assay reagent.
MedLine Citation:
PMID:  20951691     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
BACKGROUND: Serum concentration of remnant-like lipoprotein particles (RLP) have been measured by cholesterol as RLP-C for clinical diagnostic purpose. However, the measurement of TG in RLP and the ratio of RLP-TG/total TG has not been well established.
METHOD: Highly sensitive triglyceride assay reagent (TG-EX) was used for RLP-TG assay and compared with the previously used TG reagent (Determiner LTGII). Sera in health check-up populations, cardiovascular disease, diabetes and oral fat load cases were used for the evaluation of the new RLP-TG assay. Serum TC, TG, HDL-C, LDL-C and RLP-C concentrations were also determined in above cases.
RESULTS: The detection limit of new RLP-TG using TG-EX was 2.0mg/dl. The within-run imprecision (n=10) was CV=3.0% (RLP-TG: 4.1 mg ± 0.7 mg/dl), CV = 1.4% (RLP-TG: 42.0 ± 0.6 mg/dl) and CV=0.5% (RLP-TG: 100.6 ± 0.6 mg/dl). Cut-off value (75 percentile) of RLP-TG determined in the fasting Japanese population was 13.1mg/dl in men and 9.9 mg/dl in women. In patients with metabolic syndrome, cardiovascular disease and diabetes, RLP-TG levels were significantly higher than those in normal control subjects. RLP-TG levels increased significantly after an oral fat load and the ratio of RLP-TG/total TG increased > 3-fold compared to the ratio in the fasting state. Approximately 80% of TG increased after an oral fat load was TG derived from remnant lipoproteins.
CONCLUSION: Normal range of plasma RLP-TG in the fasting Japanese population was first determined using a highly sensitive TG assay reagent. RLP-TG was shown to be higher in cases with metabolic syndrome, cardiovascular disease, etc and a better marker than RLP-C for the measurement of postprandial remnant lipoproteins, together with total TG for RLP-TG/total TG ratio.
Authors:
Takamitsu Nakano; Yoshiharu Tokita; Takeaki Nagamine; Akira Tanaka; Mitsuyo Okazaki; Shinichi Yatsuzuka; Noriko Tamei; Younosuke Shimomura; Yoshitaka Ando; Suguru Akamatsu; Masaki Q Fujita; Katsuyuki Nakajima
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-10-14
Journal Detail:
Title:  Clinica chimica acta; international journal of clinical chemistry     Volume:  412     ISSN:  1873-3492     ISO Abbreviation:  Clin. Chim. Acta     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2010-11-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  1302422     Medline TA:  Clin Chim Acta     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  71-8     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier B.V. All rights reserved.
Affiliation:
School of Health Sciences, Gunma University, Maebashi, Gunma, Japan.
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