Evidence map›Paper›PMID 30396857›Full record

ArticleEBioMedicine2018

Dual-center, dual-platform microRNA profiling identifies potential plasma biomarkers of adult temporal lobe epilepsy.

Rana Raoof, Sebastian Bauer, Hany El Naggar, Niamh M C Connolly, Gary P Brennan, Elizabeth Brindley, Thomas Hill, Hazel McArdle, Elaine Spain, Robert J Forster and 6 more

Open access · goldAbstract read
In one paragraph

Article in EBioMedicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 5 pooled it
3.8field-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

65 citing papers in PubMed, 5 syntheses or guidelines pooled it, 113 citations in OpenAlex.

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  5. MicroRNAs in temporal lobe epilepsy: a systematic review.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
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5 more citing papers are in PubMed but not listed here.

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

16 authors at 6 institutions in 3 countries.

Rana RaoofDepartment of Physiology & Medical Physics, RCSI, Dublin, Ireland; Department of Anatomy, Mosul Medical College, University of Mosul, Mosul, Iraq.
Sebastian BauerEpilepsy Center Hessen, Department of Neurology, Philipps University Marburg, Marburg, Germany; Epilepsy Center Frankfurt Rhine-Main, Neurocenter, Goethe-University Frankfurt, Frankfurt a.m., Germany; Center for Personalized Translational Epilepsy Research (CePTER), Frankfurt/Main, Germany.
Hany El NaggarDepartment of Physiology & Medical Physics, RCSI, Dublin, Ireland; Beaumont Hospital, Beaumont Road, Dublin, Ireland.
Niamh M C ConnollyDepartment of Physiology & Medical Physics, RCSI, Dublin, Ireland.
Gary P BrennanDepartment of Physiology & Medical Physics, RCSI, Dublin, Ireland.
Elizabeth BrindleyDepartment of Physiology & Medical Physics, RCSI, Dublin, Ireland.
Thomas HillDepartment of Physiology & Medical Physics, RCSI, Dublin, Ireland.
Hazel McArdleSchool of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Dublin, Ireland.
Elaine SpainSchool of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Dublin, Ireland.
Robert J ForsterSchool of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Dublin, Ireland; FutureNeuro Research Centre, RCSI, Dublin, Ireland.
Jochen H M PrehnDepartment of Physiology & Medical Physics, RCSI, Dublin, Ireland; FutureNeuro Research Centre, RCSI, Dublin, Ireland.
Hajo HamerEpilepsy Centre, Department of Neurology, University of Erlangen, Erlangen, Germany.
Norman DelantyBeaumont Hospital, Beaumont Road, Dublin, Ireland; FutureNeuro Research Centre, RCSI, Dublin, Ireland; Department of Molecular & Cellular Therapeutics, RCSI, Dublin, Ireland.
Felix RosenowEpilepsy Center Hessen, Department of Neurology, Philipps University Marburg, Marburg, Germany; Epilepsy Center Frankfurt Rhine-Main, Neurocenter, Goethe-University Frankfurt, Frankfurt a.m., Germany; Center for Personalized Translational Epilepsy Research (CePTER), Frankfurt/Main, Germany.
Catherine MooneyFutureNeuro Research Centre, RCSI, Dublin, Ireland; School of Computer Science, UCD, Dublin, Ireland.
David C HenshallDepartment of Physiology & Medical Physics, RCSI, Dublin, Ireland; FutureNeuro Research Centre, RCSI, Dublin, Ireland. Electronic address: dhenshall@rcsi.ie.
Royal College of Surgeons in Ireland · IEDublin City University · IEGoethe University Frankfurt · DEBeaumont Hospital · IEUniversity College Dublin · IEUniversity of Mosul · IQ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere are no blood-based molecular biomarkers of temporal lobe epilepsy (TLE) to support clinical diagnosis. MicroRNAs are short noncoding RNAs with strong biomarker potential due to their cell-specific expression, mechanistic links to brain excitability, and stable detection in biofluids. Altered levels of circulating microRNAs have been reported in human epilepsy, but most studies collected samples from one clinical site, used a single profiling platform or conducted minimal validation.

methodUsing a case-control design, we collected plasma samples from video-electroencephalogram-monitored adult TLE patients at epilepsy specialist centers in two countries, performed genome-wide PCR-based and RNA sequencing during the discovery phase and validated findings in a large (>250) cohort of samples that included patients with psychogenic non-epileptic seizures (PNES).

findingsAfter profiling and validation, we identified miR-27a-3p, miR-328-3p and miR-654-3p with biomarker potential. Plasma levels of these microRNAs were also changed in a mouse model of TLE but were not different to healthy controls in PNES patients. We determined copy number of the three microRNAs in plasma and demonstrate their rapid detection using an electrochemical RNA microfluidic disk as a prototype point-of-care device. Analysis of the microRNAs within the exosome-enriched fraction provided high diagnostic accuracy while Argonaute-bound miR-328-3p selectively increased in patient samples after seizures. In situ hybridization localized miR-27a-3p and miR-328-3p within neurons in human brain and bioinformatics predicted targets linked to growth factor signaling and apoptosis.

interpretationThis study demonstrates the biomarker potential of circulating microRNAs for epilepsy diagnosis and mechanistic links to underlying pathomechanisms.

Indexed as

BiomarkersCirculating MicroRNAAnimalsCase-Control StudiesComputational BiologyDisease Models, AnimalEpilepsy, Temporal LobeGene Expression ProfilingGene Regulatory NetworksHigh-Throughput Nucleotide SequencingHumansMiceMicroRNAsTranscriptomeBiomarkersCirculating MicroRNAMicroRNAsBiofluidsDissociative seizuresNoncoding RNASerumStatus epilepticusTemporal lobe epilepsy

Identifiers

PMID30396857
PMCPMC6306312
OpenAlexW2899243969

What OpenQuestion 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 OpenQuestion graph.