Association of age-related changes in circulating intermediary lipid metabolites, inflammatory and oxidative stress markers, and arterial stiffness in middle-Aged men

Ji Young Kim, Oh Yoen Kim, Jean Kyung Paik, Dae Young Kwon, Hyun Jin Kim, Jong Ho Lee

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The relationships between age-related changes in circulating endogenous metabolites, inflammatory and oxidative stress markers, and arterial stiffness in 57 middle-Aged (34-55 years), nonobese men were studied over the course of 3 years. Arterial stiffness was measured using brachial-Ankle pulse wave velocities (ba-PWV). Plasma metabolomic profiling was performed using ultra-performance liquid chromatography and quadrupole time-of-flight mass spectrometry. After 3 years, decreased HDL cholesterol and increased malondialdehyde (MDA) and ox-LDL levels were observed. Among 15 identified lipids, lysoPCs (C16:0, C18:0, C18:2, C20:4, and C20:5) and linoleyl carnitine were the major plasma metabolites that contributed to the age-related differences. LysoPC16:0 (variable importance in the projection value, 6.2029) was found as the most important plasma metabolite for evaluating these changes. Changes in lysoPC16:0 levels positively correlated with the changes in 8-epi-PGF2α (r00.608), MDA (r00.413), high-sensitivity C-reactive protein (r0 0.509), IL-6 (r00.497), and ba-PWV (r00.283) levels. ba-PWV levels positively correlated with the changes in waist-to-hip ratios (WHR), inflammatory and oxidative stress markers. In a subgroup analysis of subjects with decreased ba- PWVs vs. increased ba-PWVs, changes in WHR and levels of lysoPC16:0, ba-PWV, IL-6, 8-epi- PGF2α, MDA, and P-selectin were significantly different. Our results suggest that age-related increases in lysoPC16:0 may contribute to lipid peroxidation, thereby activating proinflammatory phenotypes and arterial stiffness.

Original languageEnglish
Pages (from-to)1507-1519
Number of pages13
JournalAge
Volume35
Issue number4
DOIs
Publication statusPublished - 2013 Aug 1

All Science Journal Classification (ASJC) codes

  • Ageing
  • Geriatrics and Gerontology

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