Evidence map›Paper›PMID 31185935›Full record

ArticleBMC nephrology2019

Urinary extracellular vesicular release of aquaporins in patients with renal transplantation.

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

Open access · goldAbstract read
In one paragraph

Article in BMC nephrology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 3 pooled it
1.2field-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

19 citing papers in PubMed, 3 syntheses or guidelines pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Review
  6. Review
  7. Article
  8. Article
  9. Urinary extracellular vesicles in childhood kidney diseases.Pediatric nephrology (Berlin, Germany) · 2024
    Review
  10. Article
  11. Article
  12. Urinary extracellular vesicles and tubular transport.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2023
    Review
  13. Review
  14. Review
  15. Article
  16. Emerging roles for AQP in mammalian extracellular vesicles.Biochimica et biophysica acta. Biomembranes · 2022
    Review
  17. Article
  18. Article
  19. 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

4 authors at 2 institutions in 1 country.

Sayaka Oshikawa-HoriDepartment of Veterinary Pharmacology, Faculty of Agriculture, University of Miyazaki, Gakuenkibanadai-Nishi 1-1, Miyazaki, 889-2192, Japan.
Naoko Yokota-IkedaNephrology, Miyazaki Prefectural Miyazaki Hospital, Kitatakamatsu 5-30, Miyazaki, 880-8510, Japan.
Hiroko SonodaDepartment of Veterinary Pharmacology, Faculty of Agriculture, University of Miyazaki, Gakuenkibanadai-Nishi 1-1, Miyazaki, 889-2192, Japan.
Masahiro IkedaDepartment of Veterinary Pharmacology, Faculty of Agriculture, University of Miyazaki, Gakuenkibanadai-Nishi 1-1, Miyazaki, 889-2192, Japan. a0d302u@cc.miyazaki-u.ac.jp.ORCID 0000-0003-2539-8812
University of Miyazaki · JPMiyazaki Prefectural Hospital · JP

Funding

JSPS KAKENHI 15H04594JSPS KAKENHI 15K18784JSPS KAKENHI 16K15047JSPS KAKENHI 25221205JSPS KAKENHI 25660241
6 · The paper itself

Abstract

backgroundDiuresis has been observed within a week following renal transplantation, suggesting that the procedure causes acute disturbance of renal water homeostasis. Aquaporin (AQP) 1 and AQP2, important proteins for renal water reabsorption, have been identified in urinary extracellular vesicles (uEV-AQP1 and -AQP2), and experimental studies have shown that the presence of uEV-AQP1 and -AQP2 may be an indicator of their levels of expression in the kidney. However, the release patterns of uEV-AQP1 and -AQP2 during the acute phase following renal transplantation are largely unknown.

methodsIn this study, we examined the release of uEV-AQP1 and -AQP2 in recipients until 6 days (day 6) after renal transplantation. At Miyazaki prefectural Miyazaki Hospital, Japan, uEVs were obtained from 7 recipients, all of whom had received renal allografts from living donors. uEVs were isolated by differential centrifugation.

resultsImmunoblotting analysis showed that the release of uEV-AQP2 was significantly decreased on day 1 in comparison with a control sample (from 3 healthy volunteers), accompanied by high urine output and low urine osmolality. Thereafter, the level increased gradually to the control level by day 6. The release pattern of uEV-AQP1 was similar to that of uEV-AQP2, but the levels did not reach statistical significance in comparison with the control level at any of the time points examined. Evaluation of the relationship between urinary osmolality and uEV-AQPs revealed a significant correlation for uEV-AQP2, but not for uEV-AQP1.

conclusionThese results indicate that acute diuresis after renal transplantation might be due to a decrease in the renal expression of AQP2, whose level can be estimated from the amount released in uEVs.

Indexed as

Kidney TransplantationPostoperative ComplicationsAdultAquaporin 1Aquaporin 2Extracellular VesiclesFemaleHumansKidney Failure, ChronicMaleMiddle AgedPostoperative CareRenal ReabsorptionUrinalysisWater-Electrolyte ImbalanceAquaporin 1Aquaporin 2Aquaporin-1Aquaporin-2ExosomesExtracellular vesiclesKidneyRenal transplantationUrine

Identifiers

PMID31185935
PMCPMC6580655
OpenAlexW2950217843

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.