Evidence map›Paper›PMID 20149231›Full record

ArticleCritical care (London, England)2010

Cerebral net exchange of large neutral amino acids after lipopolysaccharide infusion in healthy humans.

Ronan Mg Berg, Sarah Taudorf, Damian M Bailey, Carsten Lundby, Fin Stolze Larsen, Bente Klarlund Pedersen, Kirsten Møller

Open access · goldAbstract read
In one paragraph

Article in Critical care (London, England), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

17 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Sepsis-Associated Brain Dysfunction: A Review of Current Literature.International journal of environmental research and public health · 2020
    Review
  8. Sepsis Associated Delirium.Medicina (Kaunas, Lithuania) · 2020
    Review
  9. Septic Encephalopathy.Current neurology and neuroscience reports · 2018
    Review
  10. Review
  11. Article
  12. Article
  13. Sepsis-associated encephalopathy.Translational medicine @ UniSa · 2012
    Article
  14. Neuro-oxidative-nitrosative stress in sepsis.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2011
    Review
  15. Year in review 2010: Critical Care--Neurocritical care.Critical care (London, England) · 2011
    Review
  16. Sepsis-associated encephalopathy: not just delirium.Clinics (Sao Paulo, Brazil) · 2011
    Review
  17. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

Ronan Mg BergCentre of Inflammation and Metabolism, Department of Infectious Diseases, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark. ronan@dadlnet.dk
Sarah Taudorf
Damian M Bailey
Carsten Lundby
Fin Stolze Larsen
Bente Klarlund Pedersen
Kirsten Møller
Rigshospitalet · DKUniversity of South Wales · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionAlterations in circulating large neutral amino acids (LNAAs), leading to a decrease in the plasma ratio between branched-chain and aromatic amino acids (BCAA/AAA ratio), may be involved in sepsis-associated encephalopathy. We hypothesised that a decrease in the BCAA/AAA ratio occurs along with a net cerebral influx of the neurotoxic AAA phenylalanine in a human experimental model of systemic inflammation.

methodsThe BCAA/AAA ratio, the cerebral delivery, and net exchange of LNAAs and ammonia were measured before and 1 hour after a 4-hour intravenous infusion of Escherichia coli lipopolysaccharide (LPS) in 12 healthy young men.

resultsLPS induced systemic inflammation, reduced the BCAA/AAA ratio, increased the cerebral delivery and unidirectional influx of phenylalanine, and abolished the net cerebral influx of the BCAAs leucine and isoleucine. Furthermore, a net cerebral efflux of glutamine, which was independent of the cerebral net exchange of ammonia, was present after LPS infusion.

conclusionsSystemic inflammation may affect brain function by reducing the BCAA/AAA ratio, thereby changing the cerebral net exchange of LNAAs.

Indexed as

AdultAmino AcidsAmmoniaBiomarkersBrainHumansInflammationLipopolysaccharidesMaleReference ValuesTumor Necrosis Factor-alphaAmino AcidsAmmoniaBiomarkersLipopolysaccharidesTumor Necrosis Factor-alpha

Identifiers

PMID20149231
PMCPMC2875531
OpenAlexW2096180153

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.