Evidence map›Paper›PMID 25760230›Full record

ArticleHigh altitude medicine & biology2015

Association between serum concentrations of hypoxia inducible factor responsive proteins and excessive erythrocytosis in high altitude Peru.

Matthew S Painschab, Gary E Malpartida, Victor G Dávila-Roman, Robert H Gilman, Todd M Kolb, Fabiola León-Velarde, J Jaime Miranda, William Checkley

Open access · greenAbstract read
In one paragraph

Article in High altitude medicine & biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

11 citing papers in PubMed, 20 citations in OpenAlex.

  1. Mechanisms Underlying Altitude-Induced and Group 3 Pulmonary Hypertension.International journal of molecular sciences · 2026
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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 2 countries.

Matthew S Painschab1 Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University , Baltimore, Maryland.
Gary E Malpartida
Victor G Dávila-Roman
Robert H Gilman
Todd M Kolb
Fabiola León-Velarde
J Jaime Miranda
William Checkley
Johns Hopkins University · USUniversidad Peruana Cayetano Heredia · PEJohns Hopkins Medicine · USWashington University in St. Louis · US

Funding

Fogarty International Clinical Research Scholars Support Center @ Vanderbilt-AAMCR24TW007988 · FIC · VANDERBILT UNIVERSITY · PI VERMUND, STEN H. · 2007 to 2011
$27.6M
Acute Lung Injury: Application of Novel Approaches to Longitudinal Data AnalysisR00HL096955 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI CHECKLEY, WILLIAM · 2011 to 2013
$723k
FIC NIH HHS R24TW007988Medical Research Council MR/K007467/1NHLBI NIH HHS HHSN268200900033CNHLBI NIH HHS R00HL096955
6 · The paper itself

Abstract

Painschab, Matthew S., Gary E. Malpartida, Victor G. Davila-Roman, Robert H. Gilman, Todd M. Kolb, Fabiola Leon-Velarde, J. Jaime Miranda, and William Checkley. Association between serum concentrations of hypoxia inducible factor responsive proteins and excessive erythrocytosis in high altitude Peru. High Alt Med Biol 16:26-33, 2015.-Long-term residence at high altitude is associated with the development of chronic mountain sickness (CMS), which is characterized by excessive erythrocytosis (EE). EE occurs under chronic hypoxia, and a strongly selected mutation in hypoxia-inducible factor 2α (HIF2A) has been found in native Tibetans that correlates with having a normal hemoglobin at high altitude. We sought to evaluate differences in plasma levels of four HIF-responsive proteins in 20 participants with EE (hemoglobin >21 g/dL in men and >19 in women) and in 20 healthy, age- and sex-matched participants without EE living at high altitude in Puno, Peru. We performed ELISA to measure plasma levels of the four HIF-responsive proteins: vascular endothelial growth factor (VEGF), soluble VEGF receptor 1 (sVEGF-R1), endothelin-1, and erythropoietin. As a secondary aim, we evaluated the association between HIF-responsive proteins and echocardiography-estimated pulmonary artery systolic pressure (PASP) in a subset of 26 participants. sVEGF-R1 was higher in participants with vs. without EE (mean 107 pg/mL vs. 90 pg/mL; p=0.007). Although plasma concentrations of endothelin-1, VEGF, and erythropoietin were higher in participants with vs. without EE, they did not achieve statistical significance (all p>0.25). Both sVEGF-R1 (p=0.04) and erythropoietin (p=0.04) were positively associated with PASP after adjustment for age, sex, and BMI. HIF-responsive proteins may play a pathophysiological role in altitude-related, chronic diseases but our results did not show consistent changes in all measured HIF-responsive proteins. Larger studies are needed to evaluate for additional genetic and environmental risk factors.

Indexed as

AdultAgedAltitudeAltitude SicknessBasic Helix-Loop-Helix ProteinsBiomarkersBlood PressureCase-Control StudiesEndothelial PAS Domain-Containing Protein 1Endothelin-1ErythropoietinFemaleHumansHypoxiaMaleMiddle AgedBasic Helix-Loop-Helix ProteinsBiomarkersEndothelial PAS Domain-Containing Protein 1Endothelin-1ErythropoietinVascular Endothelial Growth Factor Receptor-1Vascular Endothelial Growth Factorschronic mountain sicknessEPOHIFpulmonary hypertensionVEGF

Identifiers

PMID25760230
PMCPMC4376286
OpenAlexW1515344492

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.