Establishment of chemiluminescence enzyme immunoassay for apolipoprotein B-48 and its clinical applications for evaluation of impaired chylomicron remnant metabolism.

Abstract

BACKGROUND:

Apolipoprotein B-48 (apoB-48) is a constituent of chylomicron remnants synthesized in the small intestines. The serum concentration of apoB-48 at fasting has been reported to be a marker of postprandial hyperlipidemia, a presumed risk factor for atherosclerosis.

METHODS:

We evaluated the basal performance of a recently developed chemiluminescent enzyme immunoassay (CLEIA). We also examined the correlations between serum apoB-48 concentrations and other lipid concentrations or life style patterns, including smoking and drinking. We analyzed the data of 273 clinical samples by multiple regression analysis to examine the influence of other serum lipid values, age, sex, smoking, drinking status and BMI on serum apoB-48 values.

RESULTS:

Within-run and between-run precision was obtained with 1.7-2.7% and 1.2-7.3%, respectively. The correlativity of enzyme-linked immunosorbent assay was correlation coefficient r=0.953, and regression y=1.02×-1.59. Serum apoB-48 concentrations were higher in males than in females, and were correlated with the status of smoking as well as with remnant-like particle-cholesterol (RLP-C) concentrations. Patients with the metabolic syndrome showed higher values of serum apoB-48 compared with control subjects.

CONCLUSION:

Serum apoB-48 measurement by CLEIA was satisfactory for clinical use to assess abnormalities in the chylomicron remnant metabolism.

• Authors: Hiroyuki Hanada, Satomi Mugii, Manabu Okubo, Ikuhiro Maeda, Kazuya Kuwayama, Yoh Hidaka, Rika Kitazume-Taneike, Taiji Yamashita, Ryota Kawase, Hajime Nakaoka, Miwako Inagaki, Miyako Yuasa-Kawase, Kazuhiro Nakatani, Kazumi Tsubakio-Yamamoto, Daisaku Masuda, Tohru Ohama, Akifumi Matsuyama, Masato Ishigami, Makoto Nishida, Issei Komuro, Shizuya Yamashita
• Journal: Clinica chimica acta; international journal of clinical chemistry (Clin Chim Acta) Vol. 413 Issue 1-2 Pg. 160-5 (Jan 18 2012) ISSN: 1873-3492 [Electronic] Netherlands
• PMID: 21958700 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2011 Elsevier B.V. All rights reserved.

Chemical References

• Apolipoprotein B-48
• Chylomicrons

Topics

• Apolipoprotein B-48 (blood)
• Chylomicrons (metabolism)
• Female
• Humans
• Immunoenzyme Techniques (methods)
• Limit of Detection
• Luminescence
• Male
• Metabolic Syndrome (blood)
• Reproducibility of Results