Evidence map›Paper›PMID 24305621›Full record

ArticleAge and ageing2014

C-reactive protein, APOE genotype and longitudinal cognitive change in an older population.

Thomas A S Lima, Amanda L Adler, Thais Minett, Fiona E Matthews, Carol Brayne, Riccardo E Marioni, Medical Research Council Cognitive Function and Ageing Study

Open access · bronzeAbstract read
In one paragraph

Article in Age and ageing, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 7% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
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  7. Alteration of Blood Immune Biomarkers in MCI Patients with DifferentInternational journal of molecular sciences · 2023
    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

7 authors at 3 institutions in 1 country.

Thomas A S LimaHospital Militar de Área de Brasília, Brasília, Brazil.
Amanda L Adler
Thais Minett
Fiona E Matthews
Carol Brayne
Riccardo E Marioni
Medical Research Council Cognitive Function and Ageing Study
University of Cambridge · GBAddenbrooke's Hospital · GBMRC Biostatistics Unit · GB

Funding

Biotechnology and Biological Sciences Research CouncilMedical Research Council G9901400Medical Research Council MC_U105292687Medical Research Council MRC G9901400Medical Research Council UC_US_A030_0031
6 · The paper itself

Abstract

backgroundcirculating measures of inflammatory markers, such as C-reactive protein (CRP) have been associated with an increased risk of future cognitive decline. However, the nature of the relationship among the very old (>75 years) is unclear. Cross-sectional evidence suggests that elevated CRP may even be protective in this age group. This study examines these associations longitudinally.

methodslogistic regression was used to investigate the association between CRP and drop in cognitive performance (≥3 point change on the Mini-Mental State Examination) over a 4-year period in a population of 266 people, mean age 77 years.

resultsincreased levels of CRP were associated with a decreased risk of a drop in cognitive performance; however, this association was only seen in those without an APOE e4 allele [odds ratio of decline per unit increase in ln(CRP) 0.57, P = 0.04]. The magnitude of the finding remained consistent after adjustment for cardiovascular confounders (smoking, drinking, MI, stroke, diabetes, education, medication and blood pressure). For those with an e4 allele, the relationship with longitudinal cognitive decline was neither statistically significant nor in a consistent direction after controlling for acute inflammation.

conclusionsthis study strengthens previous cross-sectional findings and shows elevated levels of CRP to be linked to a decreased risk of longitudinal cognitive decline in the very old. However, as with prior analyses, this was only observed in those not carrying an APOE e4 allele. Future work on larger APOE e4 allele carrying samples is required to determine the nature of the association in this population.

Indexed as

AgingCognitionAgedAged, 80 and overAge FactorsApolipoprotein E4BiomarkersCognition DisordersC-Reactive ProteinFemaleGenotypeHumansInflammation MediatorsLogistic ModelsLongitudinal StudiesMaleApolipoprotein E4BiomarkersC-Reactive ProteinInflammation MediatorsAPOEcognitive declineC-reactive proteinolder peopleolder population

Identifiers

PMID24305621
PMCPMC3927773
OpenAlexW2158826027

What OpenQuestion holds

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LicenceCC BY
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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.