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The association between circulating lipoprotein subfractions and lipid content in coronary atheromatous plaques assessed by near-infrared spectroscopy

BACKGROUND: Lipid content in coronary atheromatous plaques, measured by near-infrared spectroscopy (NIRS), can predict the risk of future coronary events. Biomarkers that reflect lipid content in coronary plaques may therefore improve coronary artery disease (CAD) risk assessment. PURPOSE: We aimed...

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Autores principales: Sæther, Julie Caroline, Vesterbekkmo, Elisabeth Kleivhaug, Gigante, Bruna, Giskeødegård, Guro Fanneløb, Bathen, Tone Frost, Follestad, Turid, Wiseth, Rune, Madssen, Erik, Bye, Anja
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10225625/
https://www.ncbi.nlm.nih.gov/pubmed/37255857
http://dx.doi.org/10.1016/j.ijcha.2023.101215
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author Sæther, Julie Caroline
Vesterbekkmo, Elisabeth Kleivhaug
Gigante, Bruna
Giskeødegård, Guro Fanneløb
Bathen, Tone Frost
Follestad, Turid
Wiseth, Rune
Madssen, Erik
Bye, Anja
author_facet Sæther, Julie Caroline
Vesterbekkmo, Elisabeth Kleivhaug
Gigante, Bruna
Giskeødegård, Guro Fanneløb
Bathen, Tone Frost
Follestad, Turid
Wiseth, Rune
Madssen, Erik
Bye, Anja
author_sort Sæther, Julie Caroline
collection PubMed
description BACKGROUND: Lipid content in coronary atheromatous plaques, measured by near-infrared spectroscopy (NIRS), can predict the risk of future coronary events. Biomarkers that reflect lipid content in coronary plaques may therefore improve coronary artery disease (CAD) risk assessment. PURPOSE: We aimed to investigate the association between circulating lipoprotein subfractions and lipid content in coronary atheromatous plaques in statin-treated patients with stable CAD undergoing percutaneous coronary intervention. METHODS: 56 patients with stable CAD underwent three-vessel imaging with NIRS when feasible. The coronary artery segment with the highest lipid content, defined as the maximum lipid core burden index within any 4 mm length across the entire lesion (maxLCBI(4mm)), was defined as target segment. Lipoprotein subfractions and Lipoprotein a (Lp(a)) were analyzed in fasting serum samples by nuclear magnetic resonance spectroscopy and by standard in-hospital procedures, respectively. Penalized linear regression analyses were used to identify the best predictors of maxLCBI(4mm). The uncertainty of the lasso estimates was assessed as the percentage presence of a variable in resampled datasets by bootstrapping. RESULTS: Only modest evidence was found for an association between lipoprotein subfractions and maxLCBI(4mm). The lipoprotein subfractions with strongest potential as predictors according to the percentage presence in resampled datasets were Lp(a) (78.1 % presence) and free cholesterol in the smallest high-density lipoprotein (HDL) subfractions (74.3 % presence). When including established cardiovascular disease (CVD) risk factors in the regression model, none of the lipoprotein subfractions were considered potential predictors of maxLCBI(4mm). CONCLUSION: In this study, serum levels of Lp(a) and free cholesterol in the smallest HDL subfractions showed the strongest potential as predictors for lipid content in coronary atheromatous plaques. Although the evidence is modest, our study suggests that measurement of lipoprotein subfractions may provide additional information with respect to coronary plaque composition compared to traditional lipid measurements, but not in addition to established risk factors. Further and larger studies are needed to assess the potential of circulating lipoprotein subfractions as meaningful biomarkers both for lipid content in coronary atheromatous plaques and as CVD risk markers.
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spelling pubmed-102256252023-05-30 The association between circulating lipoprotein subfractions and lipid content in coronary atheromatous plaques assessed by near-infrared spectroscopy Sæther, Julie Caroline Vesterbekkmo, Elisabeth Kleivhaug Gigante, Bruna Giskeødegård, Guro Fanneløb Bathen, Tone Frost Follestad, Turid Wiseth, Rune Madssen, Erik Bye, Anja Int J Cardiol Heart Vasc Original Paper BACKGROUND: Lipid content in coronary atheromatous plaques, measured by near-infrared spectroscopy (NIRS), can predict the risk of future coronary events. Biomarkers that reflect lipid content in coronary plaques may therefore improve coronary artery disease (CAD) risk assessment. PURPOSE: We aimed to investigate the association between circulating lipoprotein subfractions and lipid content in coronary atheromatous plaques in statin-treated patients with stable CAD undergoing percutaneous coronary intervention. METHODS: 56 patients with stable CAD underwent three-vessel imaging with NIRS when feasible. The coronary artery segment with the highest lipid content, defined as the maximum lipid core burden index within any 4 mm length across the entire lesion (maxLCBI(4mm)), was defined as target segment. Lipoprotein subfractions and Lipoprotein a (Lp(a)) were analyzed in fasting serum samples by nuclear magnetic resonance spectroscopy and by standard in-hospital procedures, respectively. Penalized linear regression analyses were used to identify the best predictors of maxLCBI(4mm). The uncertainty of the lasso estimates was assessed as the percentage presence of a variable in resampled datasets by bootstrapping. RESULTS: Only modest evidence was found for an association between lipoprotein subfractions and maxLCBI(4mm). The lipoprotein subfractions with strongest potential as predictors according to the percentage presence in resampled datasets were Lp(a) (78.1 % presence) and free cholesterol in the smallest high-density lipoprotein (HDL) subfractions (74.3 % presence). When including established cardiovascular disease (CVD) risk factors in the regression model, none of the lipoprotein subfractions were considered potential predictors of maxLCBI(4mm). CONCLUSION: In this study, serum levels of Lp(a) and free cholesterol in the smallest HDL subfractions showed the strongest potential as predictors for lipid content in coronary atheromatous plaques. Although the evidence is modest, our study suggests that measurement of lipoprotein subfractions may provide additional information with respect to coronary plaque composition compared to traditional lipid measurements, but not in addition to established risk factors. Further and larger studies are needed to assess the potential of circulating lipoprotein subfractions as meaningful biomarkers both for lipid content in coronary atheromatous plaques and as CVD risk markers. Elsevier 2023-05-04 /pmc/articles/PMC10225625/ /pubmed/37255857 http://dx.doi.org/10.1016/j.ijcha.2023.101215 Text en © 2023 The Author(s) https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Original Paper
Sæther, Julie Caroline
Vesterbekkmo, Elisabeth Kleivhaug
Gigante, Bruna
Giskeødegård, Guro Fanneløb
Bathen, Tone Frost
Follestad, Turid
Wiseth, Rune
Madssen, Erik
Bye, Anja
The association between circulating lipoprotein subfractions and lipid content in coronary atheromatous plaques assessed by near-infrared spectroscopy
title The association between circulating lipoprotein subfractions and lipid content in coronary atheromatous plaques assessed by near-infrared spectroscopy
title_full The association between circulating lipoprotein subfractions and lipid content in coronary atheromatous plaques assessed by near-infrared spectroscopy
title_fullStr The association between circulating lipoprotein subfractions and lipid content in coronary atheromatous plaques assessed by near-infrared spectroscopy
title_full_unstemmed The association between circulating lipoprotein subfractions and lipid content in coronary atheromatous plaques assessed by near-infrared spectroscopy
title_short The association between circulating lipoprotein subfractions and lipid content in coronary atheromatous plaques assessed by near-infrared spectroscopy
title_sort association between circulating lipoprotein subfractions and lipid content in coronary atheromatous plaques assessed by near-infrared spectroscopy
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10225625/
https://www.ncbi.nlm.nih.gov/pubmed/37255857
http://dx.doi.org/10.1016/j.ijcha.2023.101215
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