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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Red Blood Cells’ Omega-6 and Omega-3 Polyunsaturated Fatty Acids Have a Distinct Influence on LDL Particle Size and its Structural Modifications

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Author(s):
Gustavo Henrique Ferreira Gonçalinho [1] ; Geni Rodrigues Sampaio [2] ; Rosana Aparecida Manólio Soares-Freitas [3] ; Nágila Raquel Teixeira Damasceno [4]
Total Authors: 4
Affiliation:
[1] Universidade de São Paulo. Faculdade de Saúde Pública. Departamento de Nutrição - Brasil
[2] Universidade de São Paulo. Faculdade de Saúde Pública. Departamento de Nutrição - Brasil
[3] Universidade de São Paulo. Faculdade de Saúde Pública. Departamento de Nutrição - Brasil
[4] Universidade de São Paulo. Faculdade de Saúde Pública. Departamento de Nutrição - Brasil
Total Affiliations: 4
Document type: Journal article
Source: Arquivos Brasileiros de Cardiologia; v. 120, n. 11 2023-11-20.
Abstract

Abstract Background While Omega-3 and omega-6 polyunsaturated fatty acids (n-3 and n-6 PUFAs) have established effects on cardiovascular disease (CVD) risk factors, little is known about their impacts on LDL quality markers. Objective To assess the associations of n-3 and n-6 PUFA within red blood cells (RBC) with LDL particle size, small dense LDL-c (sdLDL-c), and electronegative LDL [LDL(-)] in adults with CVD risk factors. Methods Cross-sectional study involving 335 men and women aged 30 to 74 with at least one cardiovascular risk factor. Analyses were conducted on biochemical parameters, such as glucose, insulin, HbA1c, C-reactive protein (CRP), lipid profile, lipoprotein subfractions, electronegative LDL particle [LDL(-)] and its autoantibody, and RBC n-3 and n-6 PUFAs. Independent t-test/Mann-Whitney test, one-way ANOVA/Kruskal-Wallis test, and multiple linear regressions were applied. All tests were two-sided, and a p-value of less than 0.05 was considered statistically significant. Results The RBC n-6/n-3 ratio was associated with increased LDL(-) (β = 4.064; 95% CI = 1.381 – 6.748) and sdLDL-c (β = 1.905; 95% CI = 0.863 – 2.947) levels, and reduced LDL particle size (β = -1.032; 95% CI = -1.585 − -0.478). Separately, n-6 and n-3 PUFAs had opposing associations with those parameters, reinforcing the protective effects of n-3 and showing the potential negative effects of n-6 on LDL particle quality. Conclusion RBC n-6 PUFA was associated with increased cardiometabolic risk and atherogenicity of LDL particles, while n-3 PUFA was associated with better cardiometabolic parameters and LDL particle quality. (AU)

FAPESP's process: 11/12523-2 - Physical and chemical properties of LDL and HDL, cardiometabolic and oxidative markers can be modulate by consumption of ômega-3, ômega-6 e ômega-9 in adult subjects?
Grantee:Nágila Raquel Teixeira Damasceno
Support Opportunities: Regular Research Grants
FAPESP's process: 16/24531-3 - Structural and biophysics properties of native and modified lipoproteins
Grantee:Antonio Martins Figueiredo Neto
Support Opportunities: Research Projects - Thematic Grants