Evidence map›Paper›PMID 25992270›Full record

ReviewPulmonary circulation2015

Neonatal oxygenation, pulmonary hypertension, and evolutionary adaptation to high altitude (2013 Grover Conference series).

Susan Niermeyer, Mario Patricio Andrade-M, Enrique Vargas, Lorna G Moore

Open access · bronzeAbstract readReview
In one paragraph

Review in Pulmonary circulation, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

26 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
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  10. Critical congenital heart disease detection in the ANDES: Challenges and opportunities.International journal of cardiology. Congenital heart disease · 2022
    Review
  11. Review
  12. Article
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  14. Review
  15. Review
  16. Article
  17. Human Genetic Adaptation to High Altitudes: Current Status and Future Prospects.Quaternary international : the journal of the International Union for Quaternary Research · 2017
    Article
  18. Article
  19. Measuring high-altitude adaptation.Journal of applied physiology (Bethesda, Md. : 1985) · 2017
    Review
  20. Epigenomics and human adaptation to high altitude.Journal of applied physiology (Bethesda, Md. : 1985) · 2017
    Review
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

4 authors at 2 institutions in 2 countries.

Susan NiermeyerDepartment of Pediatrics, University of Colorado Denver, Aurora, Colorado, USA.
Mario Patricio Andrade-MDivision of Cardiology (Pediatrics), Caja Nacional de Salud and Clínica del Sur, La Paz, Bolivia.
Enrique VargasDepartment of Respiratory Medicine, Cardiology, and Physiology, Instituto Boliviano de Biología de Altura, La Paz, Bolivia.
Lorna G MooreDepartment of Obstetrics and Gynecology and Center for Women's Health Research, University of Colorado Denver, Aurora, Colorado, USA.
University of Colorado Denver · USInstituto Boliviano de Ciencia y Tecnología Nuclear · BO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Andeans and Tibetans have less altitude reduction in birth weight than do shorter-resident groups, but only Tibetans are protected from pulmonary hypertension and chronic mountain sickness (CMS). We hypothesized that differences in neonatal oxygenation were involved, with arterial O2 saturation (SaO2) being highest in Tibetans, intermediate in Andeans, and lowest in Han or Europeans, and that improved oxygenation in Andeans relative to Europeans was accompanied by a greater postnatal decline in systolic pulmonary arterial pressures (Ppasys ). We studied 41 healthy (36 Andeans, 5 Europeans) and 9 sick infants at 3,600 m in Bolivia. The SaO2 in healthy babies was highest at 6-24 hours of postnatal age and then declined, whereas sick babies showed the opposite pattern. Compared to that of 30 Tibetan or Han infants studied previously at 3,600 m, SaO2 was higher in Tibetans than in Han or Andeans during wakefulness and active or quiet sleep. Tibetans, as well as Andeans, had higher values than Han while feeding. The SaO2's of healthy Andeans and Europeans were similar and, like those of Tibetans, remained at 85% or above, whereas Han values dipped below 70%. Andean and European Ppasys values were above sea-level norms and higher in sick than in healthy babies, but right heart pressure decreased across 4-6 months in all groups. We concluded that Tibetans had better neonatal oxygenation than Andeans at 3,600 m but that, counter to our hypothesis, neither was SaO2 higher nor Ppa lower in Andean than in European infants. Further, longitudinal studies in these 4 groups are warranted to determine whether neonatal oxygenation influences susceptibility to high-altitude pulmonary hypertension and CMS later in life.

Indexed as

Andeancardiopulmonary transitionEthiopianEuropeangenetic adaptationHanhypoxiaTibet

Identifiers

PMID25992270
PMCPMC4405714
OpenAlexW2001677023

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.