Evidence map›Paper›PMID 18799893›Full record

ArticleNeonatology2009

Archived unfrozen neonatal blood spots are amenable to quantitative gene expression analysis.

Peterson T Haak, Julia V Busik, Eric J Kort, Maria Tikhonenko, Nigel Paneth, James H Resau

Open access · bronzeAbstract read
In one paragraph

Article in Neonatology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

22 citing papers in PubMed, 33 citations in OpenAlex.

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  9. Psychological resilience and the gene regulatory impact of posttraumatic stress in Nepali child soldiers.Proceedings of the National Academy of Sciences of the United States of America · 2016
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  12. High correlations in gene expression between paired umbilical cord blood and neonatal blood of healthy newborns on Guthrie cards.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2013
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  18. Storage and use of residual newborn screening blood spots: a public policy emergency.Genetics in medicine : official journal of the American College of Medical Genetics · 2011
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  19. Article
  20. Maximizing deoxyribonucleic acid yield from dried blood spots.Journal of diabetes science and technology · 2010
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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

6 authors at 4 institutions in 2 countries.

Peterson T HaakLaboratory of Microarray Technology, Van Andel Research Institute, Grand Rapids, Mich. 49503, USA.
Julia V Busik
Eric J Kort
Maria Tikhonenko
Nigel Paneth
James H Resau
Michigan State University · USVan Andel Institute · USHealth and Human Development (2HD) Research Network · CMPhiladelphia College of Osteopathic Medicine · US

Funding

Training Program in Perinatal EpidemiologyT32HD046377 · NICHD · MICHIGAN STATE UNIVERSITY · PI PANETH, NIGEL SEFTON · 2005 to 2014
$2.5M
NICHD NIH HHS T32 HD046377
6 · The paper itself

Abstract

backgroundState laws in the USA mandate that blood be drawn from all newborn infants to screen for health-threatening conditions. These screening assays consume only a small portion of the blood samples, which are collected on filter paper ('Guthrie') cards. Many states archive unused blood spots, often in unrefrigerated storage.

objectivesWhile individual RNA transcripts have been identified from archived neonatal blood spots, no study to date has performed quantitative analysis of archived blood spot RNA.

methodsWe demonstrate that RNA can be isolated and amplified from newborn blood spots stored unfrozen for as long as 9 years, and can be analyzed by microarray and qPCR.

resultsMicroarray assays of archived neonatal blood spots consistently detected 3,000-4,000 expressed genes with correlations of 0.90 between replicates. Blood spot mRNA is amenable to qPCR and we detected biologically relevant expression levels of housekeeping and immune-mediating genes.

conclusionsThese experiments demonstrate the feasibility of using blood spots as a source of RNA which can be analyzed using quantitative microarray and qPCR assays. The application of these methods to the analysis of widely collected biological specimens may be a valuable resource for the study of perinatal determinants of disease development.

Indexed as

Blood Specimen CollectionGene Expression ProfilingHumansInfant, NewbornNeonatal ScreeningOligonucleotide Array Sequence AnalysisPolymerase Chain ReactionRNA, MessengerTime FactorsRNA, Messenger

Identifiers

PMID18799893
PMCPMC2693916
OpenAlexW2042040391

What OpenQuestion holds

Textmetadata
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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.