Evidence map›Paper›PMID 29879217›Full record

Trial reportPloS one2018

Electron microscopic characteristics of interstitial cystitis/bladder pain syndrome and their association with clinical condition.

Jia-Fong Jhang, Han-Chen Ho, Yuan-Hong Jiang, Cheng-Ling Lee, Yuan-Hsiang Hsu, Hann-Chorng Kuo

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 2 pooled it
4.7field-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

32 citing papers in PubMed, 2 syntheses or guidelines pooled it, 44 citations in OpenAlex.

  1. Pooled it
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  12. Interstitial cystitis-an imbalance of risk and protective factors?Frontiers in pain research (Lausanne, Switzerland) · 2024
    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

6 authors at 1 institution in 1 country.

Jia-Fong JhangDepartment of Urology, Buddhist Tzu Chi General Hospital and Tzu Chi University, Hualien, Taiwan.
Han-Chen HoDepartment of Anatomy, Tzu Chi University, Hualien, Taiwan.
Yuan-Hong JiangDepartment of Urology, Buddhist Tzu Chi General Hospital and Tzu Chi University, Hualien, Taiwan.
Cheng-Ling LeeDepartment of Urology, Buddhist Tzu Chi General Hospital and Tzu Chi University, Hualien, Taiwan.
Yuan-Hsiang HsuDepartment of Pathology, Buddhist Tzu Chi General Hospital and Tzu Chi University, Hualien, Taiwan.
Hann-Chorng KuoDepartment of Urology, Buddhist Tzu Chi General Hospital and Tzu Chi University, Hualien, Taiwan.ORCID 0000-0001-7165-4771
Tzu Chi University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundElectron microscopy (EM) characteristics of the urothelium in interstitial cystitis/bladder pain syndrome (IC/BPS) and their association with clinical condition are unclear.

methodsTen IC/BPS patients who were admitted for hydrodistention and 5 patients with stress urinary incontinence (control patients) were enrolled. All patients provided detailed clinical histories and underwent urodynamic studies. Cystoscopic bladder biopsies were obtained and processed for transmission EM (TEM) and scanning EM (SEM). The severity of the urothelium findings was graded on a 4-point scale (0: none, 1: mild, 2: moderate, and 3: severe). The EM findings between IC/BPS and control patients were compared; the results were analyzed using the chi-square test.

resultsCompared with the urothelium of control patients, the urothelium of IC/BPS patients had more severe defects of the urothelial cell layers and integrity of umbrella cells in TEM (p = 0.045 and 0.01, respectively). In SEM, umbrella cell pleomorphism increased and microplicae of the cell membrane decreased in the IC/BPS group, and both were more severe than in the control group (p = 0.022 and 0.007, respectively). The patients with moderate to severe defects of umbrella cell integrity had more severe bladder pain and smaller maximal bladder capacity (MBC) (both p = 0.010). Patients with moderate to severe defects in microplicae of the cell membrane had smaller cystometric bladder capacity and MBC (p = 0.037 and 0.047, respectively).

conclusionsThe results revealed significant urothelium defects in IC/BPS, especially in the umbrella cells. Defects of umbrella cells may play an important role in the pathogenesis of IC/BPS.

Indexed as

AdultAgedCystitis, InterstitialFemaleHumansMaleMicroscopy, ElectronMiddle AgedPainUrinary BladderUrinary Incontinence, StressUrothelium

Identifiers

PMID29879217
PMCPMC5991750
OpenAlexW2807458202

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.