Cited by 262Cardiovascular Health and Disease PreventionNitric Oxide and Endothelin EffectsNF-κB Signaling Pathways

Nuclear Factor-κB Activation Contributes to Vascular Endothelial Dysfunction via Oxidative Stress in Overweight/Obese Middle-Aged and Older Humans

Open access
Pierce, Gary L., Lesniewski, Lisa A., Lawson, Brooke R., Beske, Stacy D., Seals, Douglas R.·2009·Circulation

Abstract

Background— We tested the hypothesis that nuclear factor-κB (NF-κB) activity contributes to vascular endothelial dysfunction with aging and obesity in humans. Methods and Results— We conducted a randomized, double-blind, placebo-controlled crossover study in 14 nondiabetic overweight or obese (body mass index ≥25 kg/m 2 ) middle-aged and older (age 52 to 68 years) adults. Salsalate (nonacetylated salicylate, 4500 mg/d), a compound that inhibits NF-κB activity, or placebo was administered for 4-day periods. Plasma salicylate concentrations reached the midtherapeutic range (21.8±1.1 mg/100 mL, P ≤0.0001 versus placebo) by day 4 of salsalate treatment. Salsalate increased expression of the inhibitor of NF-κB and reduced total and nuclear expression of NF-κB in endothelial cells obtained from the subjects (all P <0.05). Salsalate increased brachial artery flow-mediated dilation by 74% (from 4.0±0.4% to 6.6±0.5%, P <0.001) but did not affect endothelium-independent dilation ( P =0.83). The change in brachial artery flow-mediated dilation with salsalate was inversely related to baseline flow-mediated dilation ( r =−0.77, P <0.01). Infusion of vitamin C increased brachial artery flow-mediated dilation during placebo ( P <0.001) but not after salsalate ( P =0.23). Salsalate reduced nitrotyrosine ( P =0.06) and expression of NADPH oxidase p47 phox ( P <0.05) in endothelial cells obtained from the subjects but did not influence circulating or endothelial cell inflammatory proteins. Conclusions— Our findings provide the first direct evidence that NF-κB, in part via stimulation of oxidative stress, plays an important role in mediating vascular endothelial dysfunction in overweight and obese middle-aged and older humans.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1161/circulationaha.108.804294

Cites

48 of 48 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Pierce, G. L., Lesniewski, L. A., Lawson, B. R., Beske, S. D., & Seals, D. R.
Affiliations
University of Colorado Boulder (US)
Venue
Circulation
Published
2009-03-10
Volume
119
Issue
9
Pages
1284-1292
ISSN
  • 0009-7322 (ISSN-L)
  • 1524-4539
OpenAlex
W2160375807
Cited by
262
References
47
Citations by year
2026: 8 · 2025: 12 · 2024: 10 · 2023: 16 · 2022: 15 · 2021: 14 · 2020: 13 · 2019: 11 · 2018: 17 · 2017: 11 · 2016: 12 · 2015: 19 · 2014: 20 · 2013: 17 · 2012: 20
FWCI
14.45
Type
journal article
Language
en
Open access
Locations
  • Circulation (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Aging (AG022241, AG-006537, R01AG022241, AG-000279, R37AG013038, R01AG013038, AG015897, R01AG006537, R01AG015897, AG-013038, T32AG000279)
  • National Center for Research Resources (RR-00051, M01RR000051)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Health and Disease Prevention
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
Keywords
NF-κB activation, endothelial dysfunction, oxidative stress, obesity, aging, salsalate, flow-mediated dilation, nitrotyrosine, vitamin C, endothelial cells, middle-aged and older adults
MeSH terms
NF-KappaB Inhibitor alpha, Administration, Oral, Aged, Aging, Anti-Inflammatory Agents, Non-Steroidal, Endothelium, Vascular, Female, Humans, Male, Middle Aged, Obesity, Salicylates, Tyrosine, Vasodilation, Body Mass Index, Cytokines, NF-kappa B, Oxidative Stress, Cross-Over Studies, NADPH Oxidases, I-kappa B Proteins, Overweight, Cyclooxygenase 1, Cyclooxygenase 2

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review