Evidence map›Paper›PMID 28453332›Full record

ArticleHigh altitude medicine & biology2017

Long-Term Intermittent Exposure to High Altitude Elevates Asymmetric Dimethylarginine in First Exposed Young Adults.

Nicole Lüneburg, Patricia Siques, Julio Brito, Juan José De La Cruz, Fabiola León-Velarde, Juliane Hannemann, Cristian Ibanez, Rainer H Böger

Open access · bronzeAbstract read
In one paragraph

Article in High altitude medicine & biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 16% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

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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

8 authors at 4 institutions in 3 countries.

Nicole Lüneburg1 Department of Clinical Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf , Hamburg, Germany .
Patricia Siques2 Institute of Health Studies , Universidad Arturo Prat, Iquique, Chile .
Julio Brito2 Institute of Health Studies , Universidad Arturo Prat, Iquique, Chile .
Juan José De La Cruz3 Department of Preventive Medicine and Public Health, Universidad Autónoma de Madrid , Madrid, Spain .
Fabiola León-Velarde4 Department of Biological and Physiological Sciences, Facultad de Ciencias y Filosofía/IIA, Universidad Peruana Cayetano Heredia , Lima, Perú .
Juliane Hannemann1 Department of Clinical Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf , Hamburg, Germany .
Cristian Ibanez2 Institute of Health Studies , Universidad Arturo Prat, Iquique, Chile .
Rainer H Böger1 Department of Clinical Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf , Hamburg, Germany .
Arturo Prat University · CLUniversity Medical Center Hamburg-Eppendorf · DEUniversidad Autónoma de Madrid · ESUniversität Hamburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lüneburg, Nicole, Patricia Siques, Julio Brito, Juan José De La Cruz, Fabiola León-Velarde, Juliane Hannemann, Cristian Ibanez, and Rainer Böger. Long-term intermittent exposure to high altitude elevates asymmetric dimethylarginine in first exposed young adults. High Alt Med Biol. 18:226-233, 2017.-Hypoxia-induced dysregulation of pulmonary and cerebral circulation may be related to an impaired nitric oxide (NO) pathway. We investigated the effect of chronic intermittent hypobaric hypoxia (CIH) on metabolites of the NO pathway. We measured asymmetric and symmetric dimethylarginine (ADMA and SDMA) and monomethyl-L-arginine (L-NMMA) and assessed their associations with acclimatization in male draftees (n = 72) undergoing CIH shifts at altitude (3550 m) during 3 months. Sixteen Andean natives living at altitude (3675 m) (chronic hypobaric hypoxia [CH]) were included for comparison. In CIH, ADMA and L-NMMA plasma concentrations increased from 1.14 ± 0.04 to 1.95 ± 0.09 μmol/L (mean ± SE) and from 0.22 ± 0.07 to 0.39 ± 0.03 μmol/L, respectively, (p < 0.001 for both) after 3 months, whereas SDMA did not change. The concentrations of ADMA and L-NMMA were higher in CH (3.48 ± 0.07, 0.53 ± 0.08 μmol/L; p < 0.001) as compared with CIH. In both CIH and CH, ADMA correlated with hematocrit (r

Indexed as

AltitudeAcclimatizationAdolescentAltitude SicknessArginineChileHumansHypoxiaMaleMilitary PersonnelOccupational Diseasesomega-N-MethylarginineYoung AdultArgininedimethylarginineomega-N-Methylarginineacclimatizationacute mountain sicknessADMAhigh altitudeintermittent hypoxia

Identifiers

PMID28453332
PMCPMC5649417
OpenAlexW2610752749

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.