Evidence map›Paper›PMID 18790993›Full record

ArticleAmerican journal of physiology. Lung cellular and molecular physiology2008

Superoxide dismutase restores eNOS expression and function in resistance pulmonary arteries from neonatal lambs with persistent pulmonary hypertension.

Kathryn N Farrow, Satyan Lakshminrusimha, William J Reda, Stephen Wedgwood, Lyubov Czech, Sylvia F Gugino, Jonathan M Davis, James A Russell, Robin H Steinhorn

Abstract readEditorial
In one paragraph

Article in American journal of physiology. Lung cellular and molecular physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 2 pooled it
6.0field-weighted citation impact, top 3% 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

73 citing papers in PubMed, 2 syntheses or guidelines pooled it, 149 citations in OpenAlex.

  1. Pooled it
  2. Neonatal pulmonary hypertension.Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies · 2010
    Pooled it
  3. Review
  4. Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Pulmonary hypertension and oxidative stress: Where is the link?Seminars in fetal & neonatal medicine · 2022
    Review
  10. Interplay of Oxidative Stress and Nitric Oxide Synthase Gene Expression on Cardiovascular Responses in Preeclampsia.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2022
    Article
  11. Article
  12. Review
  13. Oxidative Stress and Respiratory Diseases in Preterm Newborns.International journal of molecular sciences · 2021
    Review
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. Article

13 more citing papers are in PubMed but not listed here.

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

9 authors at 4 institutions in 1 country.

Kathryn N FarrowDept. of Pediatrics, Northwestern Univ. Feinberg School of Medicine, 303 E. Chicago Ave., Ward 12-196, Chicago, IL 60611, USA. k-farrow@northwestern.edu
Satyan Lakshminrusimha
William J Reda
Stephen Wedgwood
Lyubov Czech
Sylvia F Gugino
Jonathan M Davis
James A Russell
Robin H Steinhorn
Northwestern University · USUniversity at Buffalo, State University of New York · USBuffalo State University · USTufts University · US

Funding

REDOX REGULATION IN THE PERINATAL PULMONARY VASCULATURER01HL054705 · NHLBI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI STEINHORN, ROBIN H. · 2001 to 2013
$4.8M
Oxygen-Mediated Regulation of PDE5 in the Developing Pulmonary VasculatureK08HL086715 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI FARROW, KATHRYN N · 2007 to 2011
$647k
CGMP REGULATION IN THE DEVELOPING PULMONARY VASCULATURER29HL054705 · NHLBI · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI STEINHORN, ROBIN H · 1995 to 1998
–
NHLBI NIH HHS HL-086715NHLBI NIH HHS HL-54705NHLBI NIH HHS K08 HL086715NHLBI NIH HHS R01 HL054705
6 · The paper itself

Abstract

Endothelial nitric oxide (NO) synthase (eNOS) expression and activity are decreased in fetal lambs with persistent pulmonary hypertension (PPHN). We sought to determine the impact of mechanical ventilation with O(2) with or without inhaled NO (iNO) or recombinant human SOD (rhSOD) on eNOS in the ductal ligation model of PPHN. PPHN lambs and age-matched controls were ventilated with 100% O(2) for 24 h alone or combined with 20 ppm iNO continuously or a single dose of rhSOD (5 mg/kg) given intratracheally at delivery. In 1-day spontaneously breathing lambs, eNOS expression in resistance pulmonary arteries increased relative to fetal levels. eNOS expression increased in control lambs ventilated with 100% O(2), but not in PPHN lambs. Addition of iNO or rhSOD increased eNOS expression and decreased generation of reactive oxygen species (ROS) in PPHN lambs relative to those ventilated with 100% O(2) alone. However, only rhSOD restored eNOS function, increased tetrahydrobiopterin (BH(4)), a critical cofactor for eNOS function, and restored GTP cyclohydrolase I expression in isolated vessels and lungs from PPHN lambs. These data suggest that ventilation of PPHN lambs with 100% O(2) increases ROS production, blunts postnatal increases in eNOS expression, and decreases available BH(4) in PPHN lambs. Although the addition of iNO or rhSOD diminished ROS production and increased eNOS expression, only rhSOD improved eNOS function and levels of available BH(4). Thus therapies designed to decrease oxidative stress and restore eNOS coupling, such as rhSOD, may prove useful in the treatment of PPHN in newborn infants.

Indexed as

AnimalsAnimals, NewbornBiopterinsGene Expression Regulation, EnzymologicGTP CyclohydrolaseHumansInfant, NewbornLungNitric OxideNitric Oxide Synthase Type IIIOxidative StressPersistent Fetal Circulation SyndromePulmonary ArteryReactive Oxygen SpeciesRecombinant ProteinsRespiration, ArtificialBiopterinsGTP CyclohydrolaseNitric OxideNitric Oxide Synthase Type IIIReactive Oxygen SpeciesRecombinant ProteinssapropterinSuperoxide Dismutase

Identifiers

PMID18790993
PMCPMC2604791
OpenAlexW2105017863

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.