Evidence map›Paper›PMID 31270967›Full record

Trial reportPhysiological reports2019

Intravenous iron delivers a sustained (8-week) lowering of pulmonary artery pressure during exercise in healthy older humans.

Hung-Yuan Cheng, Matthew C Frise, M Kate Curtis, Nicole K Bart, Nayia Petousi, Nick P Talbot, George M Balanos, Peter A Robbins, Keith L Dorrington

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Physiological reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 21% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Manipulation of iron status on cerebral blood flow at high altitude in lowlanders and adapted highlanders.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
    Article
  6. Article
  7. Article
  8. 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

9 authors at 2 institutions in 1 country.

Hung-Yuan ChengDepartment of Physiology, Anatomy & Genetics, University of Oxford, Oxford, United Kingdom.
Matthew C FriseDepartment of Physiology, Anatomy & Genetics, University of Oxford, Oxford, United Kingdom.
M Kate CurtisDepartment of Physiology, Anatomy & Genetics, University of Oxford, Oxford, United Kingdom.
Nicole K BartDepartment of Physiology, Anatomy & Genetics, University of Oxford, Oxford, United Kingdom.
Nayia PetousiDepartment of Physiology, Anatomy & Genetics, University of Oxford, Oxford, United Kingdom.
Nick P TalbotDepartment of Physiology, Anatomy & Genetics, University of Oxford, Oxford, United Kingdom.ORCID 0000-0002-9186-8950
George M BalanosSchool of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom.
Peter A RobbinsDepartment of Physiology, Anatomy & Genetics, University of Oxford, Oxford, United Kingdom.
Keith L DorringtonDepartment of Physiology, Anatomy & Genetics, University of Oxford, Oxford, United Kingdom.ORCID 0000-0003-2023-4122
University of Oxford · GBUniversity of Birmingham · GB

Funding

British Heart Foundation FS/14/48/30828Dunhill Medical Trust R178/1110
6 · The paper itself

Abstract

In older individuals, pulmonary artery pressure rises markedly during exercise, probably due in part to increased pulmonary vascular resistance and in part to an increase in left-heart filling pressure. Older individuals also show more marked pulmonary vascular response to hypoxia at rest. Treatment with intravenous iron reduces the rise in pulmonary artery pressure observed during hypoxia. Here, we test the hypothesis that intravenous iron administration may also attenuate the rise in pulmonary artery pressure with exercise in older individuals. In a randomized double-blind placebo-controlled physiology study in 32 healthy participants aged 50-80 years, we explored the hypothesis that iron administration would deliver a fall in systolic pulmonary artery pressure (SPAP) during moderate cycling exercise (20 min duration; increase in heart rate of 30 min

Indexed as

Blood PressureExerciseAgedAged, 80 and overFemaleHumansHypertension, PulmonaryInjections, IntravenousIronMaleMiddle AgedOxygen ConsumptionPulmonary ArteryIronExerciseironpulmonary circulationpulmonary hypertension

Identifiers

PMID31270967
PMCPMC6610221
OpenAlexW2954456170

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.