Evidence map›Paper›PMID 33810601›Full record

ArticleMetabolites2021

Discovery of Volatile Biomarkers for Bladder Cancer Detection and Staging through Urine Metabolomics.

Joana Pinto, Ângela Carapito, Filipa Amaro, Ana Rita Lima, Carina Carvalho-Maia, Maria Conceição Martins, Carmen Jerónimo, Rui Henrique, Maria de Lourdes Bastos, Paula Guedes de Pinho

Open access · goldAbstract read
In one paragraph

Article in Metabolites, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 pooled it
3.0field-weighted citation impact, top 9% 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

21 citing papers in PubMed, 3 syntheses or guidelines pooled it, 44 citations in OpenAlex.

  1. Pooled it
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  3. Unmasking the Metabolite Signature of Bladder Cancer: A Systematic Review.International journal of molecular sciences · 2024
    Pooled it
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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

10 authors at 2 institutions in 1 country.

Joana PintoUCIBIO/REQUIMTE, Department of Biological Sciences, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal.ORCID 0000-0001-9719-8364
Ângela CarapitoUCIBIO/REQUIMTE, Department of Biological Sciences, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal.
Filipa AmaroUCIBIO/REQUIMTE, Department of Biological Sciences, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal.
Ana Rita LimaUCIBIO/REQUIMTE, Department of Biological Sciences, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal.ORCID 0000-0003-1439-770X
Carina Carvalho-MaiaCancer Biology & Epigenetics Group-Research Centre, Portuguese Oncology Institute of Porto (CI-IPOP), 4200-072 Porto, Portugal.
Maria Conceição MartinsCancer Biology & Epigenetics Group-Research Centre, Portuguese Oncology Institute of Porto (CI-IPOP), 4200-072 Porto, Portugal.
Carmen JerónimoCancer Biology & Epigenetics Group-Research Centre, Portuguese Oncology Institute of Porto (CI-IPOP), 4200-072 Porto, Portugal.ORCID 0000-0003-4186-5345
Rui HenriqueCancer Biology & Epigenetics Group-Research Centre, Portuguese Oncology Institute of Porto (CI-IPOP), 4200-072 Porto, Portugal.ORCID 0000-0003-3171-4666
Maria de Lourdes BastosUCIBIO/REQUIMTE, Department of Biological Sciences, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal.
Paula Guedes de PinhoUCIBIO/REQUIMTE, Department of Biological Sciences, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal.ORCID 0000-0002-7395-5700
Universidade do Porto · PTInstituto Português de Oncologia Francisco Gentil · PT

Funding

European Regional Development Fund POCI-01-0145-FEDER-030388Fundação para a Ciência e a Tecnologia PTDC/SAU-SER/30388/2017
6 · The paper itself

Abstract

Timely diagnosis is crucial to improve the long-term survival of bladder cancer (BC) patients. The discovery of new BC biomarkers based in urine analysis is very attractive because this biofluid is in direct contact with the inner bladder layer, in which most of the neoplasms develop, and is non-invasively collected. Hence, this work aimed to unveil alterations in the urinary volatile profile of patients diagnosed with BC compared with cancer-free individuals, as well as differences among patients diagnosed at different tumor stages, to identify candidate biomarkers for non-invasive BC diagnosis and staging. Urine analysis was performed by headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry (HS-SPME-GC-MS). The results unveiled that BC patients have a distinct urinary volatile profile characterized by higher levels of several alkanes and aromatic compounds, and lower levels of aldehydes, ketones and monoterpenes. Seventeen significantly altered volatiles were used to evaluate the performance for overall BC detection, disclosing 70% sensitivity, 89% specificity and 80% accuracy. Moreover, distinct urinary volatile profiles were found among patients diagnosed at different tumor stages (Ta/Tis, T1 and ≥T2). This work identified distinct urinary volatile signatures of BC patients with potential for non-invasive detection and staging of bladder cancer.

Indexed as

bladder cancerdiagnosisgas chromatography-mass spectrometrystagingurinevolatile biomarkers

Identifiers

PMID33810601
PMCPMC8066175
OpenAlexW3152297894

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.