Evidence map›Paper›PMID 24760031›Full record

ArticlePloS one2014

Determinants of renal tissue oxygenation as measured with BOLD-MRI in chronic kidney disease and hypertension in humans.

Menno Pruijm, Lucie Hofmann, Maciej Piskunowicz, Marie-Eve Muller, Carole Zweiacker, Isabelle Bassi, Bruno Vogt, Matthias Stuber, Michel Burnier

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
7.8field-weighted citation impact, top 2% 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

48 citing papers in PubMed, 1 synthesis or guideline pooled it, 90 citations in OpenAlex.

  1. Renal blood oxygenation level-dependent magnetic resonance imaging to measure renal tissue oxygenation: a statement paper and systematic review.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2018
    Pooled it
  2. Trial
  3. Trial
  4. Review
  5. Article
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  7. Article
  8. Magnetic resonance imaging of renal oxygenation.Nature reviews. Nephrology · 2025
    Review
  9. Article
  10. Review
  11. Review
  12. MRI of kidney size matters.Magma (New York, N.Y.) · 2024
    Review
  13. Article
  14. Renal MRI: From Nephron to NMR Signal.Journal of magnetic resonance imaging : JMRI · 2023
    Review
  15. Article
  16. Article
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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 3 institutions in 2 countries.

Menno PruijmDepartment of Nephrology, University Hospital, Lausanne, Switzerland.
Lucie HofmannDepartment of Nephrology and Hypertension, Bern University Hospital, Bern, Switzerland.
Maciej PiskunowiczDepartment of Radiology, Medical University of Gdansk, Gdansk, Poland.
Marie-Eve MullerDepartment of Nephrology, University Hospital, Lausanne, Switzerland.
Carole ZweiackerDepartment of Nephrology, University Hospital, Lausanne, Switzerland.
Isabelle BassiDepartment of Nephrology, University Hospital, Lausanne, Switzerland.
Bruno VogtDepartment of Nephrology and Hypertension, Bern University Hospital, Bern, Switzerland.
Matthias StuberDepartment of Radiology, University Hospital, Lausanne, Switzerland.
Michel BurnierDepartment of Nephrology, University Hospital, Lausanne, Switzerland.
University Hospital of Bern · CHGdańsk Medical University · PLUniversity of Lausanne · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Experimentally renal tissue hypoxia appears to play an important role in the pathogenesis of chronic kidney disease (CKD) and arterial hypertension (AHT). In this study we measured renal tissue oxygenation and its determinants in humans using blood oxygenation level-dependent magnetic resonance imaging (BOLD-MRI) under standardized hydration conditions. Four coronal slices were selected, and a multi gradient echo sequence was used to acquire T2* weighted images. The mean cortical and medullary R2* values ( = 1/T2*) were calculated before and after administration of IV furosemide, a low R2* indicating a high tissue oxygenation. We studied 195 subjects (95 CKD, 58 treated AHT, and 42 healthy controls). Mean cortical R2 and medullary R2* were not significantly different between the groups at baseline. In stimulated conditions (furosemide injection), the decrease in R2* was significantly blunted in patients with CKD and AHT. In multivariate linear regression analyses, neither cortical nor medullary R2* were associated with eGFR or blood pressure, but cortical R2* correlated positively with male gender, blood glucose and uric acid levels. In conclusion, our data show that kidney oxygenation is tightly regulated in CKD and hypertensive patients at rest. However, the metabolic response to acute changes in sodium transport is altered in CKD and in AHT, despite preserved renal function in the latter group. This suggests the presence of early renal metabolic alterations in hypertension. The correlations between cortical R2* values, male gender, glycemia and uric acid levels suggest that these factors interfere with the regulation of renal tissue oxygenation.

Indexed as

Administration, IntravenousAdultAgedCase-Control StudiesCell HypoxiaDiureticsFemaleFurosemideHumansHypertensionKidneyKidney CortexKidney MedullaMagnetic Resonance ImagingMaleMiddle AgedDiureticsFurosemideOxygen

Identifiers

PMID24760031
PMCPMC3997480
OpenAlexW2093107775

What OpenQuestion holds

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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.