Evidence map›Paper›PMID 25034180›Full record

ArticleCritical care (London, England)2014

Relationship between acid-base status and inflammation in the critically ill.

Fernando G Zampieri, John A Kellum, Marcelo Park, Otavio T Ranzani, Hermes V Barbeiro, Heraldo P de Souza, Luiz Monteiro da Cruz Neto, Fabiano Pinheiro da Silva

Open access · goldAbstract read
In one paragraph

Article in Critical care (London, England), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

33 citing papers in PubMed, 59 citations in OpenAlex.

  1. Dynamic changes in serum albumin and ferritin indicate higher risk of early-onset peritonitis in peritoneal dialysis patients.Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy · 2026
    Article
  2. Metabolic acidosis and sodium bicarbonate therapy in critically ill patients: A multinational survey of international and Chinese practitioners.Critical care and resuscitation : journal of the Australasian Academy of Critical Care Medicine · 2026
    Article
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  11. Effects of Alterations in Acid-Base Effects on Insulin Signaling.International journal of molecular sciences · 2024
    Review
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  16. Observational
  17. Extracorporeal multiorgan support including COThe International journal of artificial organs · 2021
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  18. Review
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  20. Albumin as a drug: its biological effects beyond volume expansion.Critical care and resuscitation : journal of the Australasian Academy of Critical Care Medicine · 2020
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Fernando G Zampieri
John A Kellum
Marcelo Park
Otavio T Ranzani
Hermes V Barbeiro
Heraldo P de Souza
Luiz Monteiro da Cruz Neto
Fabiano Pinheiro da Silva
Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo · BRUniversidade de São Paulo · BRUniversity of Pittsburgh · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThere is a complex interplay between changes in acid-base components and inflammation. This manuscript aims to explore associations between plasma cytokines and chemokines and acid-base status on admission to intensive care.

methodsWe conducted a prospective cohort study in a 13-bed ICU in a tertiary-care center in Brazil. 87 unselected patients admitted to the ICU during a 2-year period were included. We measured multiple inflammatory mediators in plasma using multiplex assays and evaluated the association between mediator concentrations and acid-base variables using a variety of statistical modeling approaches, including generalized linear models, multiadaptive regression splines and principal component analysis.

resultsWe found a positive association between strong ion gap (SIG) and plasma concentrations of interleukin (IL)6, 8, 10 and tumor necrosis factor (TNF); whereas albumin was negatively associated with IL6, IL7, IL8, IL10, TNF and interferon (IFN)α. Apparent strong ion difference (SIDa) was negatively associated with IL10 and IL17. A principal component analysis including SAPS 3 indicated that the association between acid-base components and inflammatory status was largely independent of illness severity, with both increased SIG and decreased SIDa (both drivers of acidosis) associated with increased inflammation.

conclusionAcid-base variables (especially increased SIG, decreased albumin and decreased SIDa) on admission to ICU are associated with immunological activation. These findings should encourage new research into the effects of acid-base status on inflammation.

Indexed as

Critical IllnessAcid-Base EquilibriumAdultCohort StudiesCytokinesFemaleHumansInflammationIntensive Care UnitsMaleMiddle AgedProspective StudiesCytokines

Identifiers

PMID25034180
PMCPMC4223545
OpenAlexW2063030079

What OpenQuestion holds

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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.