Evidence map›Paper›PMID 29745836›Full record

ArticleBMC neuroscience2018

Haplotype analysis of APOE intragenic SNPs.

Vladimir N Babenko, Dmitry A Afonnikov, Elena V Ignatieva, Anton V Klimov, Fedor E Gusev, Evgeny I Rogaev

Open access · goldAbstract read
In one paragraph

Article in BMC neuroscience, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 5% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Physical activity andmedRxiv : the preprint server for health sciences · 2025
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  9. Neuropathology-based APOE genetic risk score better quantifies Alzheimer's risk.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023
    Article
  10. International journal of molecular sciences · 2023
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
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  18. Article
  19. Frontiers in aging neuroscience · 2022
    Article
  20. 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

6 authors at 3 institutions in 3 countries.

Vladimir N BabenkoThe Federal Research Center Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences, Center of Neurobiology and Neurogenetics, Lavrentieva str. 10, Novosibirsk, Russia, 630090. bob@bionet.nsc.ru.
Dmitry A AfonnikovThe Federal Research Center Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences, Center of Neurobiology and Neurogenetics, Lavrentieva str. 10, Novosibirsk, Russia, 630090.
Elena V IgnatievaThe Federal Research Center Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences, Center of Neurobiology and Neurogenetics, Lavrentieva str. 10, Novosibirsk, Russia, 630090.
Anton V KlimovThe Federal Research Center Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences, Center of Neurobiology and Neurogenetics, Lavrentieva str. 10, Novosibirsk, Russia, 630090.
Fedor E GusevVavilov Institute of General Genetics RAS, Gubkina str. 3, Moscow, Russia, 119991.
Evgeny I RogaevThe Federal Research Center Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences, Center of Neurobiology and Neurogenetics, Lavrentieva str. 10, Novosibirsk, Russia, 630090.
Institute of Cytology and Genetics · RUNovosibirsk State University · RUVavilov Institute of General Genetics · RU

Funding

Alzheimer's Disease Neuroimaging Initiative - SupplementU01AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI WEINER, MICHAEL W · 2004 to 2015
$121.0M
Epigenetic-Genetic Modulations in Aging and Alzheimer's Disease NeuronsR01AG054712 · NIA · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI ROGAEV, EVGENY I · 2017 to 2021
$3.3M
CIHRNIA NIH HHS R01 AG054712NIA NIH HHS U01 AG024904
6 · The paper itself

Abstract

backgroundAPOE ε4 allele is most common genetic risk factor for Alzheimer's disease (AD) and cognitive decline. However, it remains poorly understood why only some carriers of APOE ε4 develop AD and how ethnic variabilities in APOE locus contribute to AD risk. Here, to address the role of APOE haplotypes, we reassessed the diversity of APOE locus in major ethnic groups and in Alzheimer's Disease Neuroimaging Initiative (ADNI) dataset on patients with AD, and subjects with mild cognitive impairment (MCI), and control non-demented individuals.

resultsWe performed APOE gene haplotype analysis for a short block of five SNPs across the gene using the ADNI whole genome sequencing dataset. The compilation of ADNI data with 1000 Genomes identified the APOE ε4 linked haplotypes, which appeared to be distant for the Asian, African and European populations. The common European ε4-bearing haplotype is associated with AD but not with MCI, and the Africans lack this haplotype. Haplotypic inference revealed alleles that may confer protection against AD. By assessing the DNA methylation profile of the APOE haplotypes, we found that the AD-associated haplotype features elevated APOE CpG content, implying that this locus can also be regulated by genetic-epigenetic interactions.

conclusionsWe showed that SNP frequency profiles within APOE locus are highly skewed to population-specific haplotypes, suggesting that the ancestral background within different sites at APOE gene may shape the disease phenotype. We propose that our results can be utilized for more specific risk assessment based on population descent of the individuals and on higher specificity of five site haplotypes associated with AD.

Indexed as

HaplotypesPolymorphism, Single NucleotideAlzheimer DiseaseApolipoproteins EAsian PeopleBlack PeopleDatabases, FactualDNA MethylationGenetic Predisposition to DiseaseHumansWhite PeopleWhole Genome SequencingApoE protein, humanApolipoproteins EADNI datasetAlzheimer’s diseaseAPOEDNA methylationGWASHaplotype analysisPCASNPs

Identifiers

PMID29745836
PMCPMC5998902
OpenAlexW2799889823

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.