Evidence map›Paper›PMID 34435473›Full record

ArticlePhysiological reports2021

Reduced urinary release of AQP1- and AQP2-bearing extracellular vesicles in patients with advanced chronic kidney disease.

Sayaka Oshikawa-Hori, Naoko Yokota-Ikeda, Hiroko Sonoda, Yosuke Sasaki, Masahiro Ikeda

Open access · goldAbstract read
In one paragraph

Article in Physiological reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 24% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Observational
  4. Article
  5. Article
  6. Article
  7. Urinary extracellular vesicles in childhood kidney diseases.Pediatric nephrology (Berlin, Germany) · 2024
    Review
  8. Review
  9. Urinary extracellular vesicles and tubular transport.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2023
    Review
  10. Article
  11. Article
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  13. Review
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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

5 authors at 2 institutions in 1 country.

Sayaka Oshikawa-HoriDepartment of Veterinary Pharmacology, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.
Naoko Yokota-IkedaDepartment of Nephrology, Miyazaki Prefectural Miyazaki Hospital, Miyazaki, Japan.
Hiroko SonodaDepartment of Veterinary Pharmacology, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.
Yosuke SasakiDepartment of Animal and Grassland Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.
Masahiro IkedaDepartment of Veterinary Pharmacology, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.ORCID 0000-0003-2539-8812
University of Miyazaki · JPMiyazaki Prefectural Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although several studies have shown that release of water channel proteins, aquaporin 1 (AQP1) and AQP2 in urinary extracellular vesicles (uEV-AQP1 and -AQP2), were altered in experimental kidney injury models, their release in human chronic kidney disease (CKD) has been largely unexplored. The aim of the present study was to clarify whether the release of uEV-AQP1 and -AQP2 is altered in patients with CKD. Urine samples were collected from 15 healthy volunteers (normal group) and 62 CKD patients who were categorized into six glomerular filtration rate (GFR) categories (G1, G2, G3a, G3b, G4, and G5) in between 2005 and 2016 at Miyazaki Prefectural Miyazaki Hospital, Japan. uEV-proteins were evaluated by immunoblot analysis. The release of AQP1 and AQP2 were significantly decreased in patients with both CKD G4 and G5, in comparison with the normal group. The area under the receiver operating characteristic (ROC) curve (AUC) values for AQP1 and AQP2 in patients with CKD G4 and G5 were 0.926 and 0.881, respectively. On the other hand, the AUC values in patients with CKD G1-G3 were 0.512 for AQP1 and 0.680 for AQP2. Multiple logistic regression analysis showed that AQP1 and AQP2 in combination were useful for detecting CKD G4 and G5, with a higher AUC value of 0.945. These results suggest that the release of uEV-AQP1 and -AQP2 was decreased in patients with CKD G4 and G5, and these proteins might be helpful to detect advanced CKD.

Indexed as

AdolescentAdultAgedAquaporin 1Aquaporin 2BiomarkersDisease ProgressionExtracellular VesiclesFemaleGlomerular Filtration RateHumansMaleMiddle AgedRenal Insufficiency, ChronicYoung AdultAQP1 protein, humanAQP2 protein, humanAquaporin 1Aquaporin 2Biomarkersaquaporin-1aquaporin-2chronic kidney diseaseurinary extracellular vesicles

Identifiers

PMID34435473
PMCPMC8387789
OpenAlexW3195251730

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Registered trials

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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.