Evidence map›Paper›PMID 30467901›Full record

ArticleInternational journal of urology : official journal of the Japanese Urological Association2019

Urinary aquaporin 1 and perilipin 2: Can these novel markers accurately characterize small renal masses and help guide patient management?

Joseph B Song, Jeremiah J Morrissey, Jonathan M Mobley, Karen G Figenshau, Joel M Vetter, Sam B Bhayani, Evan D Kharasch, Robert Sherburne Figenshau

Open access · bronzeAbstract read
In one paragraph

Article in International journal of urology : official journal of the Japanese Urological Association, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.6field-weighted citation impact, top 15% 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

10 citing papers in PubMed, 17 citations in OpenAlex.

  1. Review
  2. Urine C-reactive protein content and non-invasive molecular grading of renal cell carcinoma.Kidney cancer journal : official journal of the Kidney Cancer Association · 2025
    Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Aquaporins in Renal Diseases.International journal of molecular sciences · 2019
    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.

Joseph B SongDivision of Urology, Washington University School of Medicine in St. Louis, St. Louis, Missouri,, USA.
Jeremiah J MorrisseyDepartment of Anesthesiology, Division of Clinical and Translational Research, Washington University School of Medicine in St. Louis, St. Louis, Missouri,, USA.
Jonathan M MobleyDivision of Urology, Washington University School of Medicine in St. Louis, St. Louis, Missouri,, USA.
Karen G FigenshauDivision of Urology, Washington University School of Medicine in St. Louis, St. Louis, Missouri,, USA.
Joel M VetterDivision of Urology, Washington University School of Medicine in St. Louis, St. Louis, Missouri,, USA.
Sam B BhayaniDivision of Urology, Washington University School of Medicine in St. Louis, St. Louis, Missouri,, USA.
Evan D KharaschDepartment of Anesthesiology, Division of Clinical and Translational Research, Washington University School of Medicine in St. Louis, St. Louis, Missouri,, USA.
Robert Sherburne FigenshauDivision of Urology, Washington University School of Medicine in St. Louis, St. Louis, Missouri,, USA.
Washington University in St. Louis · US

Funding

WU INSTITUTE OF CLINICAL AND TRANSLATIONAL SCIENCESUL1TR002345 · NCATS · WASHINGTON UNIVERSITY · PI William G. Powderly · 2017 to 2026
$97.8M
URINARY BIOMARKERS OF RENAL CELL CARCINOMASR01CA141521 · NCI · WASHINGTON UNIVERSITY · PI MORRISSEY, JEREMIAH J · 2011 to 2019
$2.6M
NCATS NIH HHS UL1 TR002345NCI NIH HHS R01 CA141521
6 · The paper itself

Abstract

objectiveTo evaluate the role of urine aquaporin 1 and perilipin 2 as biomarkers adjunct to renal mass biopsy in guiding the management of patients with small renal masses.

methodsPreoperative aquaporin 1 and perilipin 2 levels in 57 patients with small renal masses undergoing partial nephrectomy were analyzed and compared with postoperative tumor histology. An algorithm was created utilizing aquaporin 1 and perilipin 2 in conjunction with renal mass biopsy. Cut-off values were implemented to maximize biomarker sensitivity and specificity. Renal mass biopsy utilization and intervention were then compared with rates in traditional renal mass biopsy algorithms.

resultsAll clear cell and papillary renal cell carcinomas were correctly identified and assigned to the treatment path. All benign lesions were correctly sorted to a confirmatory renal mass biopsy path. Two chromophobe masses did not have elevated aquaporin 1 and perilipin 2, and would require renal mass biopsy. Compared with protocols that call for all small renal masses to be biopsied, confirmatory renal mass biopsy could have been safely avoided in 74% of patients with elevated aquaporin 1 and perilipin 2. Compared with protocols that do not utilize renal mass biopsy, surgical intervention would have been avoided in 23% of patients with benign masses.

conclusionsAquaporin 1 and perilipin 2 possess high sensitivity and specificity for detecting clear cell and papillary renal cell carcinoma. Use of these markers might compliment renal mass biopsy in the characterization of small renal masses.

Indexed as

AgedAquaporin 1Biomarkers, TumorBiopsyCarcinoma, Renal CellFemaleHumansKidneyKidney NeoplasmsMagnetic Resonance ImagingMaleMiddle AgedNephrectomyPatient SelectionPerilipin-2Predictive Value of TestsAQP1 protein, humanAquaporin 1Biomarkers, TumorPerilipin-2PLIN2 protein, humanaquaporin 1perilipin 2renal cell carcinomasmall renal massurine biomarkers

Identifiers

PMID30467901
PMCPMC8186455
OpenAlexW2900969834

What OpenQuestion holds

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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.