Evidence map›Paper›PMID 9916141›Full record

ArticleThe Journal of clinical investigation1999

The pulmonary circulation of homozygous or heterozygous eNOS-null mice is hyperresponsive to mild hypoxia.

K A Fagan, B W Fouty, R C Tyler, K G Morris, L K Hepler, K Sato, T D LeCras, S H Abman, H D Weinberger, P L Huang and 2 more

Abstract read
In one paragraph

Article in The Journal of clinical investigation, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 92 papers.

0numbers the graph read from it
0cells of the map it votes in
92citing papers in PubMed
–field-weighted citation impact
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

92 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Observational
  8. Review
  9. Vascular pathobiology of pulmonary hypertension.The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation · 2023
    Review
  10. Article
  11. Article
  12. Article
  13. Pulmonary Hypertension in Acute and Chronic High Altitude Maladaptation Disorders.International journal of environmental research and public health · 2021
    Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Things We "kNOw" and Do Not "kNOw" about Pulmonary Hypertension.American journal of respiratory and critical care medicine · 2018
    Article
  20. EETs promote hypoxic pulmonary vasoconstriction via constrictor prostanoids.American journal of physiology. Lung cellular and molecular physiology · 2017
    Article

32 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

12 authors.

K A FaganCardiovascular Pulmonary Research Laboratory, University of Colorado Health Sciences Center, Denver 80262, USA. karen.fagan@uchsc.edu
B W Fouty
R C Tyler
K G Morris
L K Hepler
K Sato
T D LeCras
S H Abman
H D Weinberger
P L Huang
I F McMurtry
D M Rodman

Funding

VRAC and Rho in pulmonary EC proliferationP01HL014985 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI STENMARK, KURT R. · 1985 to 2019
$35.1M
MULTIDISCIPLINARY RESPIRATORY DISEASES RESEARCH TRAININGT32HL007085 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI ELLEN L BURNHAM, LISA A MAIER · 1985 to 2026
$21.6M
HYPOXIA AND ET-1 EFFECT ON PA SMC EFFECT ON CHANNELSR01HL048038 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI RODMAN, DAVID M · 1998 to 2002
$1.0M
ROLE OF K CHANNELS IN HYPOXIC PULMONARY VASOCONSTRICTIONR29HL048038 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI RODMAN, DAVID M · 1992 to 1996
–
NHLBI NIH HHS HL-07085NHLBI NIH HHS HL-14985NHLBI NIH HHS HL-48038NHLBI NIH HHS P01 HL014985NHLBI NIH HHS T32 HL007085
6 · The paper itself

Abstract

Acute hypoxic vasoconstriction and development of hypoxic pulmonary hypertension (PHTN) are unique properties of the pulmonary circulation. The pulmonary endothelium produces vasoactive factors, including nitric oxide (NO), that modify these phenomena. We tested the hypothesis that NO produced by endothelial nitric oxide synthase (eNOS) modulates pulmonary vascular responses to hypoxia using mice with targeted disruption of the eNOS gene (eNOS-/-). Marked PHTN was found in eNOS-/- mice raised in mild hypoxia when compared with either controls or eNOS-/- mice raised in conditions simulating sea level. We found an approximate twofold increase in partially and fully muscularized distal pulmonary arteries in eNOS-/- mice compared with controls. Consistent with vasoconstriction being the primary mechanism of PHTN, however, acute inhalation of 25 ppm NO resulted in normalization of RV pressure in eNOS-/- mice. In addition to studies of eNOS-/- mice, the dose-effect of eNOS was tested using heterozygous eNOS+/- mice. Although the lungs of eNOS+/- mice had 50% of normal eNOS protein, the response to hypoxia was indistinguishable from that of eNOS-/- mice. We conclude that eNOS-derived NO is an important modulator of the pulmonary vascular response to chronic hypoxia and that more than 50% of eNOS expression is required to maintain normal pulmonary vascular tone.

Indexed as

Administration, InhalationAnimalsBlood Gas AnalysisDose-Response Relationship, DrugHematocritHeterozygoteHomozygoteHypertension, PulmonaryHypertrophy, Right VentricularHypoxiaLungMiceMice, KnockoutNitric OxideNitric Oxide SynthasePulmonary CirculationNitric OxideNitric Oxide SynthaseRNA, Messenger

Identifiers

PMID9916141
PMCPMC407877

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.