Evidence map›Paper›PMID 12865413›Full record

ArticleThe Journal of clinical investigation2003

Increased plasma phenylacetic acid in patients with end-stage renal failure inhibits iNOS expression.

J Jankowski, M van der Giet, V Jankowski, S Schmidt, M Hemeier, B Mahn, G Giebing, M Tolle, H Luftmann, H Schluter and 2 more

Open access · greenAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
8.1field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 115 citations in OpenAlex.

  1. Review
  2. Article
  3. Metabolomic alterations in human brain microvascular endothelial cells induced by traumatic injury.Metabolomics : Official journal of the Metabolomic Society · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Uremic Toxins and Ciprofloxacin Affect Human Tenocytes In Vitro.International journal of molecular sciences · 2020
    Article
  18. Monocytes in Uremia.Toxins · 2020
    Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 1 country.

J JankowskiMedizinische Klinik IV, Universitätsklinikum Benjamin Franklin, Freie Universität, Berlin, Germany. Joachim.Jankowski@medizin.fu-berlin.de
M van der Giet
V Jankowski
S Schmidt
M Hemeier
B Mahn
G Giebing
M Tolle
H Luftmann
H Schluter
W Zidek
M Tepel
Freie Universität Berlin · DEUniversity of Münster · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

NO prevents atherogenesis and inflammation in vessel walls by inhibition of cell proliferation and cytokine-induced endothelial expression of adhesion molecules and proinflammatory cytokines. Reduced NO production due to inhibition of either eNOS or iNOS may therefore reinforce atherosclerosis. Patients with end-stage renal failure show markedly increased mortality due to atherosclerosis. In the present study we tested the hypothesis that uremic toxins are responsible for reduced iNOS expression. LPS-induced iNOS expression in mononuclear leukocytes was studied using real-time PCR. The iNOS expression was blocked by addition of plasma from patients with end-stage renal failure, whereas plasma from healthy controls had no effect. Hemofiltrate obtained from patients with end-stage renal failure was fractionated by chromatographic methods. The chromatographic procedures revealed a homogenous fraction that inhibits iNOS expression. Using gas chromatography/mass spectrometry, this inhibitor was identified as phenylacetic acid. Authentic phenylacetic acid inhibited iNOS expression in a dose-dependent manner. In healthy control subjects, plasma concentrations were below the detection level, whereas patients with end-stage renal failure had a phenylacetic acid concentration of 3.49 +/- 0.33 mmol/l (n = 41). It is concluded that accumulation of phenylacetic acid in patients with end-stage renal failure inhibits iNOS expression. That mechanism may contribute to increased atherosclerosis and cardiovascular morbidity in patients with end-stage renal failure.

Indexed as

AdultAgedAnimalsBlotting, WesternCell LineCells, CulturedCell SurvivalDose-Response Relationship, DrugElectrophoresis, Polyacrylamide GelFemaleGas Chromatography-Mass SpectrometryHumansKidney Failure, ChronicLeukocytes, MononuclearMacrophagesMagnetic Resonance SpectroscopyNitric OxideNitric Oxide SynthaseNitric Oxide Synthase Type IINitritesNOS2 protein, humanNos2 protein, mousePhenylacetatesphenylacetic acid

Identifiers

PMID12865413
PMCPMC164281
OpenAlexW2114447339

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.