Evidence map›Paper›PMID 35208236›Full record

ArticleMetabolites2022

Assessment of Physiological Rat Kidney Ageing-Implications for the Evaluation of Allograft Quality Prior to Renal Transplantation.

Andreas Baumgartner, Simone Reichelt-Wurm, Wolfram Gronwald, Claudia Samol, Josef A Schröder, Claudia Fellner, Kathrin Holler, Andreas Steege, Franz Josef Putz, Peter J Oefner and 2 more

Open access · goldAbstract read
In one paragraph

Article in Metabolites, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.4field-weighted citation impact, top 43% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Article
  2. Article
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 at 2 institutions in 1 country.

Andreas BaumgartnerDepartment of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany.
Simone Reichelt-WurmDepartment of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany.ORCID 0000-0002-9146-8084
Wolfram GronwaldInstitute of Functional Genomics, University of Regensburg, 93053 Regensburg, Germany.ORCID 0000-0003-3646-0060
Claudia SamolInstitute of Functional Genomics, University of Regensburg, 93053 Regensburg, Germany.
Josef A SchröderInstitute of Pathology, University of Regensburg, 93053 Regensburg, Germany.
Claudia FellnerDepartment of Radiology, University Hospital Regensburg, 93053 Regensburg, Germany.
Kathrin HollerDepartment of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany.
Andreas SteegeDepartment of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany.
Franz Josef PutzDepartment of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany.ORCID 0000-0001-7903-7890
Peter J OefnerInstitute of Functional Genomics, University of Regensburg, 93053 Regensburg, Germany.
Bernhard BanasDepartment of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany.ORCID 0000-0003-2076-2195
Miriam C BanasDepartment of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany.
University Hospital Regensburg · DEUniversity of Regensburg · DE

Funding

Deutsche Forschungsgemeinschaft 387509280
6 · The paper itself

Abstract

Due to organ shortage and rising life expectancy the age of organ donors and recipients is increasing. Reliable biomarkers of organ quality that predict successful long-term transplantation outcomes are poorly defined. The aim of this study was the identification of age-related markers of kidney function that might accurately reflect donor organ quality. Histomorphometric, biochemical and molecular parameters were measured in young (3-month-old) and old (24-month-old) male Sprague Dawley rats. In addition to conventional methods, we used urine metabolomics by NMR spectroscopy and gene expression analysis by quantitative RT-PCR to identify markers of ageing relevant to allograft survival. Beside known markers of kidney ageing like albuminuria, changes in the concentration of urine metabolites such as trimethylamine-N-oxide, trigonelline, 2-oxoglutarate, citrate, hippurate, glutamine, acetoacetate, valine and 1-methyl-histidine were identified in association with ageing. In addition, expression of several genes of the toll-like receptor (TLR) pathway, known for their implication in inflammaging, were upregulated in the kidneys of old rats. This study led to the identification of age-related markers of biological allograft age potentially relevant for allograft survival in the future. Among those, urine metabolites and markers of immunity and inflammation, which are highly relevant to immunosuppression in transplant recipients, are promising and deserve further investigation in humans.

Indexed as

ageinginflammationkidneytransplantationurinary metabolites

Identifiers

PMID35208236
PMCPMC8875225
OpenAlexW4210957268

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.