Evidence map›Paper›PMID 18605903›Full record

ArticleThe Journal of infectious diseases2008

Recovery of endothelial function in severe falciparum malaria: relationship with improvement in plasma L-arginine and blood lactate concentrations.

Tsin W Yeo, Daniel A Lampah, Retno Gitawati, Emiliana Tjitra, Enny Kenangalem, Yvette R McNeil, Christabelle J Darcy, Donald L Granger, J Brice Weinberg, Bert K Lopansri and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of infectious diseases, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
6.3field-weighted citation impact, top 4% 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

48 citing papers in PubMed, 77 citations in OpenAlex.

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  4. Observational
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  6. Association betweenAntioxidants (Basel, Switzerland) · 2023
    Review
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  9. Glycocalyx breakdown is increased in African children with cerebral and uncomplicated falciparum malaria.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
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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

14 authors at 7 institutions in 5 countries.

Tsin W YeoInternational Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, Australia.
Daniel A Lampah
Retno Gitawati
Emiliana Tjitra
Enny Kenangalem
Yvette R McNeil
Christabelle J Darcy
Donald L Granger
J Brice Weinberg
Bert K Lopansri
Ric N Price
Stephen B Duffull
David S Celermajer
Nicholas M Anstey
Charles Darwin University · AUMenzies School of Health Research · AUMinistry of Health · IDUniversity of Utah · USDurham VA Medical Center · USUniversity of Otago · NZUniversity of Sydney · AU

Funding

NITRIC OXIDE AND SEVERE MALARIAR01AI041764 · NIAID · DUKE UNIVERSITY · PI WEINBERG, JOE BRICE · 1997 to 2012
$6.3M
Severe falciparum malaria: mechanisms of hypoargininemiaK23AI055982 · NIAID · UNIVERSITY OF UTAH · PI LOPANSRI, BERT K · 2003 to 2006
$539k
Nitric Oxide and Severe MalariaR21AI041764 · NIAID · DUKE UNIVERSITY · PI WEINBERG, JOE BRICE · 2002 to 2002
$490k
NIAID NIH HHS AI041764NIAID NIH HHS AI55982NIAID NIH HHS K23 AI055982NIAID NIH HHS R01 AI041764NIAID NIH HHS R21 AI041764Wellcome TrustWellcome Trust ICRG GR071614MA
6 · The paper itself

Abstract

backgroundSevere malaria is characterized by microvascular obstruction, endothelial dysfunction, and reduced levels of L-arginine and nitric oxide (NO). L-Arginine infusion improves endothelial function in moderately severe malaria. Neither the longitudinal course of endothelial dysfunction nor factors associated with recovery have been characterized in severe malaria.

methodsEndothelial function was measured longitudinally in adults with severe malaria (n = 49) or moderately severe malaria (n = 48) in Indonesia, using reactive hyperemia peripheral arterial tonometry (RH-PAT). In a mixed-effects model, changes in RH-PAT index values in patients with severe malaria were related to changes in parasitemia, lactate, acidosis, and plasma L-arginine concentrations.

resultsAmong patients with severe malaria, the proportion with endothelial dysfunction fell from 94% (46/49 patients) to 14% (6/42 patients) before discharge or death (P < .001). In severe malaria, the median time to normal endothelial function was 49 h (interquartile range, 20-70 h) after the start of antimalarial therapy. The mean increase in L-arginine concentrations in patients with severe malaria was 11 micromol/L/24 h (95% confidence interval [CI], 9-13 micromol/L/24 h), from a baseline of 49 micromol/L (95% CI, 37-45 micromol/L). Improvement of endothelial function in patients with severe malaria correlated with increasing levels of L-arginine (r = 0.56; P = .008) and decreasing levels of lactate (r = -0.44; P = .001).

conclusionsRecovery of endothelial function in severe malaria is associated with recovery from hypoargininemia and lactic acidosis. Agents that can improve endothelial NO production and endothelial function, such as L-arginine, may have potential as adjunctive therapy early during the course of severe malaria.

Indexed as

Lactic AcidAcidosisAdultArginineBiological AvailabilityEndothelium, VascularHumansMalaria, FalciparumNitric OxidePlasmaRecovery of FunctionArginineLactic AcidNitric Oxide

Identifiers

PMID18605903
PMCPMC2709993
OpenAlexW2063792386

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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.