Evidence map›Paper›PMID 21177703›Full record

ReviewCardiovascular research2011

Nitrite in pulmonary arterial hypertension: therapeutic avenues in the setting of dysregulated arginine/nitric oxide synthase signalling.

Brian S Zuckerbraun, Patricia George, Mark T Gladwin

3 registry-linked trialsOpen access · bronzeAbstract readReview
In one paragraph

Review in Cardiovascular research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
10.1field-weighted citation impact, top 1% 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.

NCT01431313 phase2completednot on this mapstarted 2012, after this paper: background citation

A Dose Escalation Study to Evaluate the Effect of Inhaled Nitrite on Cardiopulmonary Hemodynamics in Subjects With Pulmonary Hypertension

TypeinterventionalSponsorSchmidhofer, Mark, MDRan2012 to 2017Enrolled48ConditionsPulmonary Hypertension, Heart Failure, DiastolicArmsInhaled Nitrite
NCT01725256 phase2terminatednot on this mapstarted 2012, after this paper: background citation

A Phase 2, Multi-Center, Open-label, Randomized, Parallel-Dose Study to Determine the Safety and Efficacy of AIR001 in Subjects With WHO Group 1 Pulmonary Arterial Hypertension (PAH)

TypeinterventionalSponsorAires Pharmaceuticals, Inc.Ran2012 to 2014Enrolled29ConditionsPulmonary Arterial HypertensionArmsAIR001 (sodium nitrite inhalation solution)
NCT01725269 phase2terminatednot on this mapstarted 2013, after this paper: background citation

A Phase 2, Multicenter, Open-Label Study to Evaluate the Intermediate/Long Term Safety and Efficacy of AIR001 in Subjects With WHO Group 1 Pulmonary Arterial Hypertension

TypeinterventionalSponsorAires Pharmaceuticals, Inc.Ran2013 to 2014Enrolled17ConditionsPulmonary Arterial HypertensionArmsAIR001
3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 98 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Effect of pre-exercise dietary nitrate on skeletal muscle blood flow in a rat model of pulmonary hypertension.American journal of physiology. Regulatory, integrative and comparative physiology · 2025
    Article
  6. Article
  7. New Drugs and Therapies in Pulmonary Arterial Hypertension.International journal of molecular sciences · 2023
    Review
  8. Article
  9. Article
  10. Myeloid-Derived Suppressor Cells and Pulmonary Hypertension.International journal of molecular sciences · 2018
    Review
  11. Review
  12. Nitric oxide and pulmonary arterial hypertension.Global cardiology science & practice · 2017
    Review
  13. Review
  14. Article
  15. Lung Circulation.Comprehensive Physiology · 2016
    Review
  16. Article
  17. Article
  18. Article
  19. Inorganic nitrite supplementation for healthy arterial aging.Journal of applied physiology (Bethesda, Md. : 1985) · 2014
    Review
  20. Nitrate and periplasmic nitrate reductases.Chemical Society reviews · 2014
    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

3 authors at 1 institution in 1 country.

Brian S ZuckerbraunDepartment of Surgery, University of Pittsburgh, NW 607 MUH, 3459 Fifth Avenue, Pittsburgh, PA 15213, USA. zuckerbraunbs@upmc.edu
Patricia George
Mark T Gladwin
University of Pittsburgh · US

Funding

Storage Lesion in Banked Blood Due to Disruption of Nitric Oxide HomeostasisR01HL098032 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Mark T Gladwin · 2009 to 2026
$12.5M
Myoglobin as a Nitrite Reductase that Regulates Hypoxic Cardiac NO SignalingR01HL096973 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GLADWIN, MARK T, SHIVA, SRUTI · 2010 to 2013
$1.5M
Dietary nitrate activation of PPARgamma improves insulin sensitivityRC1DK085852 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI FREEMAN, BRUCE ALAN, GLADWIN, MARK T · 2009 to 2010
$999k
NHLBI NIH HHS R01HL096973NHLBI NIH HHS R01HL098032NIDDK NIH HHS RC1DK085852
6 · The paper itself

Abstract

Pulmonary arterial hypertension (PAH) is an insidious disease of the small pulmonary arteries that is progressive in nature and results in right heart strain/hypertrophy and eventually failure. The aetiologies may vary but several common pathophysiological changes result in this phenotype, including vasoconstriction, thrombosis, and vascular proliferation. Data suggest that nitric oxide (NO) signalling is vasoprotective in the setting of PAH. The classic arginine-NO synthase (NOS)-NO signalling pathway may represent an adaptive response that is eventually dysregulated during disease progression. Dysregulation occurs secondary to NOS enzyme down-regulation, enzymatic uncoupling, and arginine catabolism by vascular and red cell arginases and by direct NO inactivation via catabolic reactions with superoxide or cell-free plasma haemoglobin (in the case of haemolytic disease). The anion nitrite, which has recently been recognized as a source of NO that circumvents the arginine-NOS pathway, may serve as an additional adaptive signalling pathway that is now appreciated to have a vasoregulatory role in the pulmonary and systemic vasculature. Inhaled nebulized sodium nitrite is a relatively potent pulmonary vasodilator in the setting of hypoxia and is also anti-proliferative in multiple experimental models of pulmonary hypertension. Multiple nitrite reductases have been shown to be relevant in the conversion of nitrite to metabolically active NO, including deoxy-haemoglobin and myoglobin in the circulation and heart, respectively, and xanthine oxidoreductase in the lung parenchyma.

Indexed as

ArginineFamilial Primary Pulmonary HypertensionHumansHypertension, PulmonaryNitric OxideNitric Oxide SynthaseNitritesSignal TransductionArginineNitric OxideNitric Oxide SynthaseNitrites

Identifiers

PMID21177703
PMCPMC3028978
OpenAlexW2154323560

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.