Evidence map›Paper›PMID 34328656›Full record

ArticleCancer science2021

High level of phosphatidylcholines/lysophosphatidylcholine ratio in urine is associated with prostate cancer.

Xin Li, Kenji Nakayama, Takayuki Goto, Hiroko Kimura, Shusuke Akamatsu, Yujiro Hayashi, Kazutoshi Fujita, Takashi Kobayashi, Koji Shimizu, Norio Nonomura and 2 more

Open access · goldAbstract read
In one paragraph

Article in Cancer science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 18% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

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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

12 authors at 5 institutions in 1 country.

Xin LiDepartment of Urology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Kenji NakayamaDepartment of Urology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Takayuki GotoDepartment of Urology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Hiroko KimuraDepartment of Urology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.ORCID https://orcid.org/0000-0001-8071-6700
Shusuke AkamatsuDepartment of Urology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Yujiro HayashiDepartment of Urology, Osaka University Graduate School of Medicine, Suita, Japan.ORCID https://orcid.org/0000-0002-4701-5635
Kazutoshi FujitaDepartment of Urology, Osaka University Graduate School of Medicine, Suita, Japan.
Takashi KobayashiDepartment of Urology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.ORCID https://orcid.org/0000-0003-1069-2816
Koji ShimizuClinical Research Center for Medical Equipment Development, Kyoto University Hospital, Kyoto, Japan.
Norio NonomuraDepartment of Urology, Osaka University Graduate School of Medicine, Suita, Japan.ORCID https://orcid.org/0000-0002-6522-6233
Osamu OgawaDepartment of Urology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Takahiro InoueDepartment of Nephro-Urologic Surgery and Andrology, Mie University Graduate School of Medicine, Tsu, Japan.ORCID https://orcid.org/0000-0001-8586-784X
Kyoto University · JPThe University of Osaka · JPKindai University · JPKyoto University Hospital · JPMie University · JP

Funding

Grants-in-Aid for Scientific Research (KAKENHI) 18H02936Research Grant for Collaboration Research Projects from the Shimadzu Corporation
6 · The paper itself

Abstract

The altered levels of phospholipids (PLs) and lysophospholipids (LPLs) in prostate cancer (CaP) and benign tissues in our previous findings prompted us to explore PLs and LPLs as potential biomarkers for CaP. Urinary lipidomics has attracted increasing attention in clinical diagnostics and prognostics for CaP. In this study, 31 prostate tissues obtained from radical prostatectomy were assessed using high-resolution matrix-assisted laser desorption/ionization imaging mass spectrometry (HR-MALDI-IMS). Urine samples were collected after digital rectal examination (DRE), and urinary lipids were extracted using the acidified Bligh-Dyer method. The discovery set comprised 75 patients with CaP and 44 with benign prostatic hyperplasia (BPH) at Kyoto University Hospital; the validation set comprised 74 patients with CaP and 59 with BPH at Osaka University Hospital. Urinary lipidomic screening was performed using MALDI time-of-flight MS (MALDI-TOF/MS). The levels of urinary lysophosphatidylcholine (LPC) and phosphatidylcholines (PCs) were compared between the CaP and BPH groups. The (PC [34:2] + PC [34:1])/LPC (16:0) ratio was significantly higher (P < .001) in CaP tissues than in benign epithelial tissues. The urinary PCs/LPC ratio was significantly higher (P < .001) in the CaP group than in the BPH group in the discovery and validation sets.

Indexed as

AgedBiomarkers, TumorHumansLysophosphatidylcholinesLysophospholipidsMalePhosphatidylcholinesProstate-Specific AntigenProstatic HyperplasiaProstatic NeoplasmsReproducibility of ResultsSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationBiomarkers, TumorLysophosphatidylcholinesLysophospholipidsPhosphatidylcholinesProstate-Specific Antigenlysophosphatidylcholinematrix-assisted laser desorption/ionization time-of-flight mass spectrometryphosphatidylcholineprostate cancerurine

Identifiers

PMID34328656
PMCPMC8486217
OpenAlexW3184231672

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.