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Association of LDL-cholesterol subfractions with cardiovascular disorders: a systematic review
Abdolreza Chary1, Maryam Tohidi1, Mehdi Hedayati2
1Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, PO Box: 19395‑4763, Tehran, Iran.
Insights
Higher low-density lipoprotein (LDL) particle numbers and small dense LDL are linked to increased cardiovascular disease risk. Evaluating LDL subclasses may aid in diagnosing cardiovascular disorders.
Area of Science:
- Cardiology
- Biochemistry
- Preventive Medicine
Background:
- Cardiovascular disorders (CVDs) represent the primary global cause of mortality.
- Understanding risk factors is crucial for effective prevention and treatment strategies.
Conclusions:
- LDL subclasses show promise as valuable biomarkers for the assessment and diagnosis of cardiovascular diseases.
- Further research is necessary to elucidate the underlying mechanisms connecting LDL subclasses to CVDs.
Background:
Cardiovascular disorders (CVDs) are the leading cause of death worldwide. This study aimed to evaluate the association between low-density lipoprotein (LDL) subfractions and cardiovascular disorders.
Methods:
To ensure the rigor of the systematic review, the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were used. For this systematic review, a comprehensive search strategy was performed in important databases including PubMed, Scopus, Embase, International Statistical Institute (ISI) Web of Science, and google scholar from 2009 to February 2021. The following terms were used for systematic search: low-density lipoprotein, LDL, subfractions, subclasses, nuclear magnetic resonance, NMR, chromatography, high-pressure liquid, HPLC, cardiovascular disease, cerebrovascular, and peripheral vascular disease. Also, for evaluating the risk of bias, the Newcastle-Ottawa scale was employed.
Results:
At the end of the search process, 33 articles were included in this study. The results of most of the evaluated studies revealed that a higher LDL particle number was consistently associated with increased risk for cardiovascular disease, independent of other lipid measurements. Also, small dense LDL was associated with an increased risk of CVDs. There was no association between LDL subfraction and CVDs in a small number of studies.
Conclusions:
Overall, it seems that the evaluation of LDL subclasses can be used as a very suitable biomarker for the assessment and diagnosis of cardiovascular diseases. However, further studies are required to identify the mechanisms involved.
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