Relationships Between Atherosclerosis and Plasma Antioxidant Micronutrients or Red Blood Cell Polyunsaturated Fatty Acids in People Living with HIV
Overview
Authors
Affiliations
Background: People living with human immunodeficiency virus infection and acquired immune deficiency syndrome (HIV/AIDS) (PLWH) are at an increased risk of cardiovascular disease. Diet-related factors may contribute. The aim of this pilot study was to determine, in PLWH, the relationship between atherosclerosis assessed by carotid intima-media thickness (CIMT) and (A) plasma antioxidant micronutrients and oxidative stress or (B) red blood cell polyunsaturated fatty acids (RBC PUFA), particularly long chain omega-3 polyunsaturated fatty acids (n-3 PUFA).
Methods: (A) In a cross-sectional study, subjects had CIMT evaluated by high resolution carotid artery ultrasound. Plasma was collected for vitamin C, measured by spectrophotometry; and alpha- and gamma-tocopherol, retinol, and malondialdehyde-a marker of oxidative stress-using high pressure liquid chromatography and fluorescence spectrophotometry. (B) In a prospective cohort study, other subjects had RBC PUFA measured at baseline, using gas chromatography, and CIMT assessed at baseline and repeated after 2 years. Clinical data was also collected.
Results: (A) 91 PLWH participated. Only alpha- and gamma-tocopherol levels were positively correlated with CIMT. In a multivariate analysis, age and systolic blood pressure were significantly associated with CIMT with gamma-tocopherol near significance ( = 0.053). (B) 69 PLWH participated. At baseline, docosahexaenoic acid (n-3 PUFA) and the ratio of docosahexaenoic acid to arachidonic acid (n-6 PUFA) were significantly and negatively correlated with CIMT. However, a multivariate analysis failed to detect a significant relationship either at baseline or 2 years after.
Conclusion: In addition to age and systolic blood pressure, atherosclerosis assessed by CIMT might be associated with higher serum gamma-tocopherol levels. There was a non-significant association between CIMT and RBC n-3 PUFA or the ratio of n-3 to n-6 PUFA.
PON-1 and PON-2 Polymorphisms and PON-1 Paraoxonase Activity in People Living with HIV-1.
Reichert C, Levy D, Maselli L, da Cunha J, Gualandro S, Bydlowski S Antioxidants (Basel). 2025; 14(2).
PMID: 40002395 PMC: 11851513. DOI: 10.3390/antiox14020209.
Association Between Circulating Fatty Acids and Blood Pressure: A Review.
Arghavani H, Bilodeau J, Rudkowska I Curr Nutr Rep. 2025; 14(1):15.
PMID: 39775363 DOI: 10.1007/s13668-024-00602-3.
Ebenuwa I, Violet P, Michel K, Padayatty S, Wang Y, Tu H Clin Infect Dis. 2023; 77(8):1157-1165.
PMID: 37264998 PMC: 10573720. DOI: 10.1093/cid/ciad333.
Dosage of Dual-Protein Nutrition Differentially Impacts the Formation of Atherosclerosis in Mice.
Huang Y, Zhang K, Zhang L, Qiu J, Fu L, Yin T Nutrients. 2022; 14(4).
PMID: 35215505 PMC: 8879330. DOI: 10.3390/nu14040855.
Berretta M, Quagliariello V, Maurea N, di Francia R, Sharifi S, Facchini G Antioxidants (Basel). 2020; 9(12).
PMID: 33256059 PMC: 7761324. DOI: 10.3390/antiox9121182.