Cited by 22Vitamin C and Antioxidants ResearchAntioxidant Activity and Oxidative StressNitric Oxide and Endothelin Effects

The influence of vitamin C on systemic markers of endothelial and inflammatory cell activation in smokers and non-smokers

Scott, D. A., Poston, R. N., Wilson, R. F., Coward, P. Y., Palmer, R. M.·2005·Inflammation Research

Abstract

Objective and design To determine the influence of vitamin C supplementation (500 mg, bd, 14 days) on the circulating concentrations of soluble ICAM-1 (a marker of endothelial activation), neopterin (a marker of monocyte activation), and neutrophil elastase (a marker of neutrophil activation) in smokers and non-smokers in a randomised, double-blind, placebo-controlled trial in a hospital setting.Subjects Twenty smokers (serum cotinine > or = 20 ng ml(-1)) and 20 age- and gender-matched non-smokers (serum cotinine < or = 13.7 ng ml(-1)).Results At baseline, there was a significant elevation in the concentration of sICAM-1 in smokers (median 247, IQR 199 to 357 ng ml(-1)) compared to non-smokers (median 207, IQR 189 to 227 ng ml(-1); p = 0.014). Vitamin C supplementation did not influence the circulating concentrations of ICAM-1 or neopterin, or leukocyte elastase activity, in smokers, non-smokers, or in the total population.Conclusions Markers of monocyte and neutrophil activation were not influenced by smoking status in this study population. However, sICAM-1 concentrations were significantly elevated in tobacco smokers, reflecting tobacco-induced vascular activation that is unaffected by Vitamin C supplementation.

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Crossref · 10.1007/s00011-004-1335-4

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  • Higher iron intake, especially haem iron, and higher iron status are associated with increased risk of type 2 diabetes, atherosclerosis and coronary heart disease, although the literature is not fully consistent.

    “There is some epidemiological evidence that higher Fe intake, particularly that of haem Fe, and higher Fe status are associated with increased risk of type 2 diabetes, atherosclerosis and CHD (702 -714) , although not all of the literature is consistent.”

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Authors
Scott, D. A., Poston, R. N., Wilson, R. F., Coward, P. Y., & Palmer, R. M.
Affiliations
  • University of Louisville (US)
  • King's College London (GB)
Corresponding author
Scott, D. A.
Venue
Inflammation Research
Published
2005-03
Volume
54
Issue
3
Pages
138-144
ISSN
  • 1023-3830 (ISSN-L)
  • 1420-908X
OpenAlex
W2053240306
Cited by
22
References
63
Citations by year
2026: 1 · 2022: 1 · 2020: 1 · 2019: 1 · 2017: 1 · 2015: 2 · 2012: 2
FWCI
2.44
Type
journal article
Language
en
Open access
closed
Locations
  • Inflammation Research (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Vitamin C and Antioxidants Research
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
vitamin C supplementation, smoking, endothelial activation, soluble ICAM-1, neopterin, neutrophil elastase, monocyte activation, neutrophil activation, inflammatory markers, cotinine
MeSH terms
Adult, Antioxidants, Ascorbic Acid, Cotinine, Endothelium, Female, Humans, Inflammation, Lung, Male, Middle Aged, Placebos, Smoking, Time Factors, Biomarkers, Intercellular Adhesion Molecule-1, Leukocyte Elastase, Neopterin

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