Evidence map›Paper›PMID 24373927›Full record

ArticleClinical biochemistry2014

High sensitivity C-reactive protein (Hs-CRP) remains highly stable in long-term archived human serum.

Ayo P Doumatey, Jie Zhou, Adebowale Adeyemo, Charles Rotimi

Abstract read
In one paragraph

Article in Clinical biochemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 2 pooled it
–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

55 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Effect of Phytosterols on Serum Levels of C-Reactive Protein: A Time- and Dose-Response Meta-analysis of Randomized Controlled Trial.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2024
    Pooled it
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  13. Inflammation and Ovarian Function in Reproductive-Aged Women.American journal of human biology : the official journal of the Human Biology Council · 2025
    Article
  14. Observational
  15. Early life stress is associated with greater negative emotionality and peripheral inflammation in alcohol use disorder.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Article
  16. Article
  17. Systemic inflammation and menstrual cycle length in a prospective cohort study.American journal of obstetrics and gynecology · 2023
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  19. 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

4 authors.

Ayo P DoumateyCenter for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA. Electronic address: doumateya@mail.nih.gov.
Jie ZhouCenter for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
Adebowale AdeyemoCenter for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
Charles RotimiCenter for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.

Funding

Genetic epidemiology of complex diseasesZIAHG200362 · NHGRI · NATIONAL HUMAN GENOME RESEARCH INSTITUTE · PI ROTIMI, CHARLES · 2009 to 2025
$54.7M
The Howard University SCORE Program Supplemental GrantS06GM008016 · NIGMS · HOWARD UNIVERSITY · PI TIZABI, YOUSEF · 1989 to 2009
$16.1M
Understanding Obesity In Relation to the Built EnvironmentP20MD006899 · NIMHD · JACKSON STATE UNIVERSITY · PI ADDISON, CLIFTON · 2012 to 2016
$5.3M
Genetic epidemiology of complex diseasesZ01HG200362 · NHGRI · NATIONAL HUMAN GENOME RESEARCH INSTITUTE · PI ROTIMI, CHARLES · 2008 to 2008
$1.7M
Intramural NIH HHS Z01 HG200362Intramural NIH HHS Z99 HG999999NIGMS NIH HHS S06 GM008016NIGMS NIH HHS S06GM008016-320107NIGMS NIH HHS S06GM008016-380111NIMHD NIH HHS P20 MD006899
6 · The paper itself

Abstract

backgroundThe stability of biomarkers in stored biomedical samples is crucial, especially when storage is for extended periods of time. High-sensitivity CRP (Hs-CRP) is a biomarker of low grade inflammation that is extensively used to identify and study cardiovascular and/or inflammatory processes in clinical care and large epidemiologic studies. Therefore, assessing Hs-CRP stability in archived samples at a given temperature is important to ensure precision of measurements over time and the validity of studies using archived samples.

methodsWe evaluated the stability of Hs-CRP in 30 randomly selected human serum samples by measuring Hs-CRP concentrations in freshly collected sample [Hs-CRP (0)] and in the same set of samples after 7-11years of storage at -80°C [Hs-CRP (LT)].

resultsHs-CRP did not significantly change up to 11years of storage at -80°C as shown by a negligible median difference between Hs-CRP (0) and Hs-CRP (LT), delta(Hs-CRP (0)-Hs-CRP (LT))=-0.01, p=0.45. There was a good concordance and agreement between Hs-CRP (0) and Hs-CRP (LT) as measured respectively by Lin's coefficient of correlation (ρC=0.98) and Bland-Altman analysis (mean difference=-0.02, 95% CI [-0.04-0.0045] p=0.107). In addition, the data also suggest that the time elapsed between collection and Hs-CRP measurement does not affect Hs-CRP stability over time when samples are kept under the appropriate conditions.

conclusionsLong-term storage at -80°C for up to 11years did not significantly affect the stability of serum Hs-CRP. Given the cost and time for collecting fresh samples, this observation represents an important finding for biomedical research and clinical care.

Indexed as

CryopreservationBiomarkersC-Reactive ProteinHumansProtein StabilityReproducibility of ResultsSpecimen HandlingTime FactorsBiomarkersC-Reactive ProteinArchived samplesBiomedical researchC-reactive proteinLong-term storageStability

Identifiers

PMID24373927
PMCPMC3991112

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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.