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Association Between Lipoprotein (a) Levels and Coronary Artery Disease (CAD) Among Patients With or Without CAD

Hayato Tada1, Nobuko Kojima1, Kan Yamagami1

  • 1Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan.

Journal of Lipid and Atherosclerosis
|February 6, 2025
PubMed

Insights

Lipoprotein (a) (Lp[a]) is linked to coronary artery disease (CAD) risk, irrespective of family history. Elevated Lp[a] levels increase CAD risk, particularly in individuals without a family history of the disease.

Area of Science:

  • Cardiovascular Medicine
  • Genetics
  • Biochemistry

Background:

  • Lipoprotein (a) (Lp[a]) is a significant, heritable risk factor for coronary artery disease (CAD).
  • The interplay between Lp[a] levels, family history of CAD, and an individual's risk for developing CAD requires further elucidation.

Purpose of the Study:

  • To investigate the association between serum Lp[a] levels and coronary artery disease (CAD) risk.
  • To determine if this association is modified by the presence or absence of a family history of CAD.

Main Methods:

  • Analysis of clinical data from 4,512 participants who underwent Lp[a] level measurement.
  • Logistic regression analyses were employed to assess the relationship between Lp[a], CAD family history, and CAD development.

Main Results:

  • Both family history of CAD and Lp[a] levels were independently associated with increased CAD risk.
  • Individuals with Lp[a] levels ≥30 mg/dL exhibited higher CAD risk, especially those without a family history.
  • The combination of Lp[a] levels and family history improved CAD risk prediction compared to conventional risk factors alone.

Conclusions:

  • Serum Lp[a] level is a significant predictor of CAD development.
  • The association between Lp[a] and CAD risk persists regardless of an individual's family history of the disease.
Abstract

Keywords:
Coronary artery diseaseLipoproteinLipoprotein(a)Medical family history

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