Evidence map›Paper›PMID 32472747›Full record

ArticleMolecular genetics & genomic medicine2020

A TOMM40/APOE allele encoding APOE-E3 predicts high likelihood of late-onset Alzheimer's disease in autopsy cases.

Selma M Soyal, Markus Kwik, Ognian Kalev, Stefan Lenz, Greta Zara, Peter Strasser, Wolfgang Patsch, Serge Weis

Open access · goldAbstract read
In one paragraph

Article in Molecular genetics & genomic medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 23% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
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  10. Associations of Vascular Risk Factors,Frontiers in psychiatry · 2021
    Article
  11. Review
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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 at 2 institutions in 1 country.

Selma M SoyalInstitute of Pharmacology and Toxicology, Paracelsus Medical University, Salzburg, Austria.
Markus KwikInstitute of Pharmacology and Toxicology, Paracelsus Medical University, Salzburg, Austria.
Ognian KalevDivision of Neuropathology, Neuromed Campus, Kepler University Hospital, Linz, Austria.
Stefan LenzDivision of Neuropathology, Neuromed Campus, Kepler University Hospital, Linz, Austria.
Greta ZaraInstitute of Pharmacology and Toxicology, Paracelsus Medical University, Salzburg, Austria.
Peter StrasserInstitute of Laboratory Medicine, Paracelsus Medical University, Salzburg, Austria.
Wolfgang PatschInstitute of Pharmacology and Toxicology, Paracelsus Medical University, Salzburg, Austria.
Serge WeisDivision of Neuropathology, Neuromed Campus, Kepler University Hospital, Linz, Austria.ORCID 0000-0001-6750-2599
Paracelsus Medical University · ATKepler Universitätsklinikum · AT

Funding

Austrian Science Fund FWF V 344
6 · The paper itself

Abstract

backgroundThe APOE-ε4 allele is an established risk factor for Alzheimer's disease (AD). TOMM40 located adjacent to APOE has also been implicated in AD but reports of TOMM40 associations with AD that are independent of APOE-ε4 are at variance.

methodsWe investigated associations of AD with haplotypes defined by three TOMM40 and two APOE single nucleotide polymorphisms in 73 and 71 autopsy cases with intermediate and high likelihood of AD (defined by BRAAK stages <V and V-VI), respectively, and in 150 controls without major neurodegenerative diseases.

resultsWe observed eight haplotypes with a frequency >0.02. The two haplotypes encoding APOE-E4 showed strong associations with AD that did not differ between intermediate and high likelihood AD. In contrast, a TOMM40 haplotype encoding APOE-E3 was identified as risk haplotype of high- (p = .0186), but not intermediate likelihood AD (p = .7530). Furthermore, the variant allele of rs2075650 located in intron 2 of TOMM40, increased the risk of high-, but not intermediate likelihood AD on the APOE-ε3/ε3 background (p = .0230).

conclusionThe striking association of TOMM40 only with high likelihood AD may explain some contrasting results for TOMM40 in clinical studies and may reflect an association with more advanced disease and/or suggest a role of TOMM40 in the pathogenesis of neurofibrillary tangles.

Indexed as

Polymorphism, Single NucleotideAgedAged, 80 and overAlzheimer DiseaseApolipoproteins EFemaleGene FrequencyHaplotypesHumansMaleMembrane Transport ProteinsMitochondrial Precursor Protein Import Complex ProteinsApoE protein, humanApolipoproteins EMembrane Transport ProteinsMitochondrial Precursor Protein Import Complex ProteinsTOMM40 protein, humanAlzheimer’ diseaseAPOEbeta-amyloidgeneticshaplotypesneurofibrillary tanglesTOMM40

Identifiers

PMID32472747
PMCPMC7434743
OpenAlexW3032005411

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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.