Evidence map›Paper›PMID 32169090›Full record

ArticleBMC research notes2020

Influence of storage conditions of small volumes of blood on immune transcriptomic profiles.

Rebecca Mathew, Mohammed Toufiq, Valentina Mattei, Muna Al Hashmi, Harshitha Shobha Manjunath, Basirudeen Syed Ahamed Kabeer, Rita Calzone, Chiara Cugno, Damien Chaussabel, Sara Deola and 1 more

Abstract read
In one paragraph

Article in BMC research notes, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
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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

11 authors.

Rebecca MathewOmics Core, Research Branch, Out Patient Clinic, Sidra Medicine, PO 26999, Doha, Qatar.
Mohammed ToufiqSystem Biology, Research Branch, Out Patient Clinic, Sidra Medicine, Doha, Qatar.
Valentina MatteiOmics Core, Research Branch, Out Patient Clinic, Sidra Medicine, PO 26999, Doha, Qatar.
Muna Al HashmiOmics Core, Research Branch, Out Patient Clinic, Sidra Medicine, PO 26999, Doha, Qatar.
Harshitha Shobha ManjunathOmics Core, Research Branch, Out Patient Clinic, Sidra Medicine, PO 26999, Doha, Qatar.
Basirudeen Syed Ahamed KabeerSystem Biology, Research Branch, Out Patient Clinic, Sidra Medicine, Doha, Qatar.
Rita CalzoneAdvanced Cell Therapy Core, Sidra Medicine, Doha, Qatar.
Chiara CugnoAdvanced Cell Therapy Core, Sidra Medicine, Doha, Qatar.
Damien ChaussabelSystem Biology, Research Branch, Out Patient Clinic, Sidra Medicine, Doha, Qatar.
Sara DeolaAdvanced Cell Therapy Core, Sidra Medicine, Doha, Qatar.
Sara TomeiOmics Core, Research Branch, Out Patient Clinic, Sidra Medicine, PO 26999, Doha, Qatar. stomei@sidra.org.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTranscriptome analysis of human whole blood is used to discover biomarkers of diseases and to assess phenotypic traits. Here we have collected small volumes of blood in Tempus solution and tested whether different storage conditions have an impact on transcriptomic profiling. Fifty µl of blood were collected in 100µl of Tempus solutions, freezed at - 20 °C for 1 day and eventually thawed, stored and processed under five different conditions: (i) - 20 °C for 1 week; (ii) +4 °C for 1 week; (iii) room temperature for 1 week; (iv) room temperature for 1 day, - 20 °C for 1 day, room temperature until testing at day 7, (v) - 20 °C for 1 week, RNA was isolated and stored in GenTegra solution. We used 272 immune transcript specific assays to test the expression profiling using qPCR based Fluidigm BioMark HD dynamic array.

resultsRNA yield ranged between 0.17 and 1.39µg. Except for one sample, RIN values were > 7. Using Principal Component Analysis, we saw that the storage conditions did not drive sample distribution. The condition that showed larger variability was the RT-FR-RT (room temperature-freezing-room temperature), suggesting that freezing-thawing cycles may have a worse effect on data reproducibility than keeping the samples at room temperature.

Indexed as

BloodGene Expression ProfilingCold TemperatureFreezingHumansImmune SystemReal-Time Polymerase Chain ReactionReproducibility of ResultsRNASpecimen HandlingTemperatureTranscriptomeRNABloodGenTegraImmune profilingQPCRStorageTempusTrancriptome

Identifiers

PMID32169090
PMCPMC7069204

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Registered trials

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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.