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Related Experiment Videos

[Development of a serum lipoprotein A-I immunoassay method].

K Shishino1, Y Hitsumoto, H Osawa

  • 1Department of Laboratory and Clinical Medicine, Ehime University Medical School.

Rinsho Byori. the Japanese Journal of Clinical Pathology
|August 6, 1999
PubMed
Summary

A new immunoturbidimetric assay accurately measures lipoprotein A-I (LpA-I) levels. This method is sensitive and correlates well with existing techniques, aiding lipid disorder analysis.

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Area of Science:

  • Clinical Chemistry
  • Immunology
  • Cardiovascular Research

Context:

  • Lipoprotein A-I (LpA-I) plays a role in lipid metabolism and cardiovascular health.
  • Accurate quantification of LpA-I is crucial for understanding lipid disorders.
  • Existing methods for LpA-I measurement can be complex or lack sensitivity.

Purpose:

  • To develop and validate a sensitive immunoturbidimetric assay for quantifying lipoprotein A-I (LpA-I).
  • To assess the assay's precision, correlation with conventional methods, and establish reference intervals.
  • To evaluate the clinical utility of the assay in patients with coronary artery disease.

Summary:

  • A novel sequential antibody-based immunoturbidimetric assay was developed for LpA-I.
  • The assay demonstrates high sensitivity (detecting down to 155 mg/l) and precision.

Related Experiment Videos

  • Excellent correlation (r = 0.947) was observed with differential electroimmunoassay.
  • Reference intervals in healthy adults were established (284–736 mg/l).
  • Significantly lower LpA-I values were found in coronary artery disease patients compared to controls (p < 0.001).

    • Impact:

    • Provides a sensitive and reliable method for LpA-I quantification.
    • Facilitates the study of LpA-I in various lipid disorders and cardiovascular conditions.
    • Enables better understanding of LpA-I's role in the pathophysiology of coronary artery disease.