Evidence map›Paper›PMID 33021021›Full record

ArticleAmerican journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons2021

Urine recirculation prolongs normothermic kidney perfusion via more optimal metabolic homeostasis-a proteomics study.

Annemarie Weissenbacher, Honglei Huang, Tomas Surik, Maria L Lo Faro, Rutger J Ploeg, Constantin C Coussios, Peter J Friend, Benedikt M Kessler

Open access · hybridAbstract read
In one paragraph

Article in American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 5% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Perfusate Composition and Duration ofTransplant international : official journal of the European Society for Organ Transplantation · 2022
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Time as a Therapeutic Ally: The Promise of Long-Term Solid Organ and Tissue Perfusion.Transplant international : official journal of the European Society for Organ Transplantation · 2026
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Frontiers in bioengineering and biotechnology · 2023
    Article
  15. Article
  16. Article
  17. Review
  18. Ex Vivo Mesenchymal Stem Cell Therapy to Regenerate Machine Perfused Organs.International journal of molecular sciences · 2021
    Review
  19. Article
  20. Frontiers in medicine · 2021
    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

8 authors at 1 institution in 1 country.

Annemarie WeissenbacherNuffield Department of Surgical Sciences, University of Oxford, Oxford, UK.ORCID 0000-0002-0582-1815
Honglei HuangNuffield Department of Surgical Sciences, University of Oxford, Oxford, UK.
Tomas SurikNuffield Department of Surgical Sciences, University of Oxford, Oxford, UK.
Maria L Lo FaroNuffield Department of Surgical Sciences, University of Oxford, Oxford, UK.
Rutger J PloegNuffield Department of Surgical Sciences, University of Oxford, Oxford, UK.ORCID 0000-0001-7801-665X
Constantin C CoussiosInstitute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK.
Peter J FriendNuffield Department of Surgical Sciences, University of Oxford, Oxford, UK.
Benedikt M KesslerTarget Discovery Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
University of Oxford · GB

Funding

Department of Health II-ES-1010-10096Medical Research Council MR/R014132/1
6 · The paper itself

Abstract

We describe a proteomics analysis to determine the molecular differences between normothermically perfused (normothermic machine perfusion, NMP) human kidneys with urine recirculation (URC) and urine replacement (UR). Proteins were extracted from 16 kidney biopsies with URC (n = 8 donors after brain death [DBD], n = 8 donors after circulatory death [DCD]) and three with UR (n = 2 DBD, n = 1 DCD), followed by quantitative analysis by mass spectrometry. Damage-associated molecular patterns (DAMPs) were decreased in kidney tissue after 6 hours NMP with URC, suggesting reduced inflammation. Vasoconstriction was also attenuated in kidneys with URC as angiotensinogen levels were reduced. Strikingly, kidneys became metabolically active during NMP, which could be enhanced and prolonged by URC. For instance, mitochondrial succinate dehydrogenase enzyme levels as well as carbonic anhydrase were enhanced with URC, contributing to pH stabilization. Levels of cytosolic and the mitochondrial phosphoenolpyruvate carboxykinase were elevated after 24 hours of NMP, more prevalent in DCD than DBD tissue. Key enzymes involved in glucose metabolism were also increased after 12 and 24 hours of NMP with URC, including mitochondrial malate dehydrogenase and glutamic-oxaloacetic transaminase, predominantly in DCD tissue. We conclude that NMP with URC permits prolonged preservation and revitalizes metabolism to possibly better cope with ischemia reperfusion injury in discarded kidneys.

Indexed as

Organ PreservationProteomicsHomeostasisHumansKidneyPerfusionischemia reperfusion injury (IRI)kidney (allograft) function / dysfunctionkidney biologykidney transplantation / nephrologyorgan perfusion and preservationtranslational research / science

Identifiers

PMID33021021
PMCPMC8246941
OpenAlexW3090541079

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.