Evidence map›Paper›PMID 40295636›Full record

ArticleScientific reports2025

Regional analysis of APOE polymorphism in Alzheimer's disease in Spain.

Ignacio Pardo-Pérez, Leticia Sánchez-Valdeón, Ana García-Gallego, Brisamar Estébanez, Inés Casado-Verdejo, Jesús Antonio Fernández-Fernández, Carlos Méndez-Martínez, Laura Bello-Corral

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Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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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

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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

0 citing papers in PubMed.

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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

8 authors.

Ignacio Pardo-PérezUniversity Hospital of León, 24071, León, Spain.
Leticia Sánchez-ValdeónDepartment of Nursing and Physiotherapy, University of León, 24071, León, Spain. lsanv@unileon.es.
Ana García-GallegoHealth Research Nursing Group (GREIS), University of León, Campus Vegazana, 24071, León, Spain.
Brisamar EstébanezInstitute of Biomedicine (IBIOMED), University of León, 24071, León, Spain.
Inés Casado-VerdejoHealth Research Nursing Group (GREIS), University of León, Campus Vegazana, 24071, León, Spain.
Jesús Antonio Fernández-FernándezDepartment of Nursing and Physiotherapy, University of León, 24071, León, Spain.
Carlos Méndez-MartínezUniversity Hospital of León, 24071, León, Spain.
Laura Bello-CorralDepartment of Nursing and Physiotherapy, University of León, 24401, Ponferrada, Spain.

Funding

Consejo General de Enfermería PNI_CGE11
6 · The paper itself

Abstract

Alzheimer's disease (AD) is a progressive neurodegenerative disorder with significant cognitive and functional impacts. Genetic factors, particularly the APOE gene and its allelic variants (ε2, ε3, ε4), play a critical role in AD susceptibility. This study analyzed the allelic frequency and distribution of APOE polymorphisms in three provinces of Castilla y León (León, Soria, Salamanca), Spain, to explore their potential relationship with AD risk. Genotypes were determined using polymerase chain reactions, and statistical analyses revealed significant regional variations. The ε3/ε3 genotype was the most prevalent overall, while the ε3/ε4 genotype predominated in specific areas like Ponferrada. The absence of homozygous ε4 individuals in Soria contrasts sharply with higher frequencies in Salamanca. These differences suggest historical and migratory influences on genetic variability. Identifying regional genetic patterns enhances our understanding of AD risk and supports the development of targeted preventive strategies. Early detection of high-risk alleles could improve patient outcomes, reduce healthcare burdens and inform public health policies.

Indexed as

Alzheimer DiseaseApolipoproteins EPolymorphism, GeneticAgedAged, 80 and overAllelesFemaleGene FrequencyGenetic Predisposition to DiseaseGenotypeHumansMaleSpainApoE protein, humanApolipoproteins EAlzheimer’s DiseaseAPOE polymorphismGeneticGeographical distributionLife quality

Identifiers

PMID40295636
PMCPMC12037765

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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.