Evidence map›Paper›PMID 28425921›Full record

ArticleAnnals of surgery2018

Plasma Micro-RNA Alterations Appear Late in Pancreatic Cancer.

Oskar Franklin, Pär Jonsson, Ola Billing, Erik Lundberg, Daniel Öhlund, Hanna Nyström, Christina Lundin, Henrik Antti, Malin Sund

Open access · hybridAbstract read
In one paragraph

Article in Annals of surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 35% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 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

9 authors at 1 institution in 1 country.

Oskar FranklinDepartment of Surgical and Perioperative Sciences, Umeå University, Sweden.
Pär JonssonDepartment of Chemistry, Umeå University, Sweden.
Ola BillingDepartment of Surgical and Perioperative Sciences, Umeå University, Sweden.
Erik LundbergDepartment of Surgical and Perioperative Sciences, Umeå University, Sweden.
Daniel ÖhlundDepartment of Surgical and Perioperative Sciences, Umeå University, Sweden.
Hanna NyströmDepartment of Surgical and Perioperative Sciences, Umeå University, Sweden.
Christina LundinDepartment of Surgical and Perioperative Sciences, Umeå University, Sweden.
Henrik AnttiDepartment of Chemistry, Umeå University, Sweden.
Malin SundDepartment of Surgical and Perioperative Sciences, Umeå University, Sweden.
Umeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe aim of this research was to study whether plasma microRNAs (miRNA) can be used for early detection of pancreatic cancer (PC) by analyzing prediagnostic plasma samples collected before a PC diagnosis.

backgroundPC has a poor prognosis due to late presenting symptoms and early metastasis. Circulating miRNAs are altered in PC at diagnosis but have not been evaluated in a prediagnostic setting.

methodsWe first performed an initial screen using a panel of 372 miRNAs in a retrospective case-control cohort that included early-stage PC patients and healthy controls. Significantly altered miRNAs at diagnosis were then measured in an early detection case-control cohort wherein plasma samples in the cases are collected before a PC diagnosis. Carbohydrate antigen 19-9 (Ca 19-9) levels were measured in all samples for comparison.

resultsOur initial screen, including 23 stage I-II PC cases and 22 controls, revealed 15 candidate miRNAs that were differentially expressed in plasma samples at PC diagnosis. We combined all 15 miRNAs into a multivariate statistical model, which outperformed Ca 19-9 in receiver-operating characteristics analysis. However, none of the candidate miRNAs, individually or in combination, were significantly altered in prediagnostic plasma samples from 67 future PC patients compared with 132 matched controls. In comparison, Ca 19-9 levels were significantly higher in the cases at <5 years before diagnosis.

conclusionPlasma miRNAs are altered in PC patients at diagnosis, but the candidate miRNAs found in this study appear late in the course of the disease and cannot be used for early detection of the disease.

Indexed as

Early Detection of CancerAgedBilirubinBiomarkers, TumorCA-19-9 AntigenCase-Control StudiesFemaleHumansMaleMicroRNAsMiddle AgedMultivariate AnalysisPancreatic NeoplasmsRetrospective StudiesBilirubinBiomarkers, TumorCA-19-9 AntigenMicroRNAs

Identifiers

PMID28425921
PMCPMC5865497
OpenAlexW2568155869

What OpenQuestion holds

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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 OpenQuestion graph.