Evidence map›Paper›PMID 28422821›Full record

Observational studyMedicine2017

How the cognitive reserve interacts with β-amyloid deposition in mitigating FDG metabolism: An observational study.

Elena Carapelle, Laura Serra, Sergio Modoni, Michele Falcone, Carlo Caltagirone, Marco Bozzali, Luigi Maria Specchio, Carlo Avolio

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in Medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

8 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Interaction between Cognitive Reserve and Biomarkers in Alzheimer Disease.International journal of molecular sciences · 2020
    Review
  6. Article
  7. Review
  8. Article
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

8 authors at 2 institutions in 3 countries.

Elena CarapelleaClinic of Nervous System Diseases, OORR Foggia bNeuroimaging Laboratory, IRCCS Santa Lucia Foundation, Rome cInstitute of Nuclear Medicine d1° Laboratory, OORR Foggia eNeuroimaging Laboratory IRCCS Santa Lucia Foundation, and Department of NeuroScience University of Rome "Tor Vergata", Rome, Italy.
Laura Serra
Sergio Modoni
Michele Falcone
Carlo Caltagirone
Marco Bozzali
Luigi Maria Specchio
Carlo Avolio
Apple (Israel) · ILUniversity of Foggia · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This observational study had the aim to assess the interaction between cognitive reserve (CR) and cerebrospinal fluid β-amyloid1-42 (Aβ1-42) in modulating brain [18F]fluorodeoxyglucose positron emission tomography (FDG-PET) metabolism in patients with moderate Alzheimer disease (AD).Twenty-seven patients with probable AD and 25 neurological normal subjects (NNS) entered the study. All participants had an FDG-PET scan, and AD patients also received a lumbar puncture to measure Aβ1-42, 181p-tau, and Tau concentrations. Based on years of formal education, AD patients were classified as highly educated-AD (years of formal education >5) or less educated-AD (years of formal education <5). By using a voxel-wise approach, we first investigated differences in the cerebral glucose uptake between AD and NNS, then we assessed the interaction between level of education (a proxy of CR) and cerebrospinal fluid biomarkers on FDG-PET metabolism in the patient groups.Significantly lower glucose uptake was observed in the posterior cingulate gyrus, in the precuneus, in the inferior and medial temporal gyrus, and in the inferior parietal lobule of AD patients compared with NNS. A significant interaction was found between CR and Aβ1-42 values on brain metabolism in the inferior and medial temporal gyrus bilaterally.The AD patients with higher CR level and marked signs of neuropathology showed glucose hypometabolism in regions typically targeted by AD pathology. This finding supports the hypothesis that CR partially compensates for the effect of Aβ plaques on cognitive impairment, helps in patients' clinical staging, and opens new possibilities for the development of nonpharmacological interventions.

Indexed as

AgedAlzheimer DiseaseAmyloid beta-PeptidesBiomarkersBrainBrain MappingCognitive ReserveEducational StatusFemaleFluorodeoxyglucose F18GlucoseHumansMagnetic Resonance ImagingMaleMental Status ScheduleNeuropsychological TestsAmyloid beta-Peptidesamyloid beta-protein (1-42)BiomarkersFluorodeoxyglucose F18GlucoseMAPT protein, humanPeptide FragmentsRadiopharmaceuticalstau Proteins

Identifiers

PMID28422821
PMCPMC5406037
OpenAlexW2607269242

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.