Evidence map›Paper›PMID 22491860›Full record

ArticleNeurology2012

Role of common and rare APP DNA sequence variants in Alzheimer disease.

B V Hooli, G Mohapatra, M Mattheisen, A R Parrado, J T Roehr, Y Shen, J F Gusella, R Moir, A J Saunders, C Lange and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Neurology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 3 pooled it
4.5field-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

50 citing papers in PubMed, 3 syntheses or guidelines pooled it, 83 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Copy Number Variants in Alzheimer's Disease.Journal of Alzheimer's disease : JAD · 2017
    Pooled it
  4. Review
  5. Review
  6. Article
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  8. Article
  9. Review
  10. Emerging Perspectives on Prime Editor Delivery to the Brain.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
  11. Review
  12. Review
  13. Article
  14. Aggregation of Disordered Proteins Associated with Neurodegeneration.International journal of molecular sciences · 2023
    Review
  15. 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

12 authors at 2 institutions in 1 country.

B V HooliGenetics and Aging Research Unit, Massachusetts General Hospital, Charlestown, MA, USA.
G Mohapatra
M Mattheisen
A R Parrado
J T Roehr
Y Shen
J F Gusella
R Moir
A J Saunders
C Lange
R E Tanzi
L Bertram
Massachusetts General Hospital · USCenter for Human Genetics · US

Funding

National Centralized Repository for Alzheimer's Disease and Related Dementias (NCRAD)U24AG021886 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI TATIANA M. FOROUD · 2002 to 2026
$119.8M
Identification and Characterization of Novel AD GenesR37MH060009 · NIMH · MASSACHUSETTS GENERAL HOSPITAL · PI TANZI, RUDOLPH EMILE · 2003 to 2012
$7.6M
SEARCH FOR NOVEL ALZHEIMERS DISEASE GENESR01MH060009 · NIMH · MASSACHUSETTS GENERAL HOSPITAL · PI TANZI, RUDOLPH EMILE · 1999 to 2017
$5.4M
Identification and Characterization of APP Metabolism RegulatorsR01NS057295 · NINDS · DREXEL UNIVERSITY · PI SAUNDERS, ALEISTER J. · 2008 to 2012
$1.6M
SEARCH FOR NOVEL EARLY-ONSET ALZHEIMER'S GENESR01AG023667 · NIA · MASSACHUSETTS GENERAL HOSPITAL · PI BERTRAM, LARS · 2005 to 2007
$944k
DIAGNOSTIC CENTERS FOR PSYCHIATRIC LINKAGE STUDIESU01MH046290 · NIMH · JOHNS HOPKINS UNIVERSITY · PI BASSETT, SUSAN SPEAR · 1989 to 1997
–
ETIOLOGIC HETEROGENEITY IN FAMILIAL ALZHEIMERS DISEASEU01MH046373 · NIMH · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI GO, RODNEY CHUN PUNG · 1989 to 1997
–
GENETIC STUDIES OF ALZHEIMERS DISEASEU01MH046281 · NIMH · MASSACHUSETTS GENERAL HOSPITAL · PI ALBERT, MARILYN S · 1989 to 1997
–
NIA NIH HHS 5R01-AG23667NIA NIH HHS U24 AG021886NIMH NIH HHS 5R37-MH60009NIMH NIH HHS R01 MH060009NIMH NIH HHS U01 MH046281NIMH NIH HHS U01 MH046290NIMH NIH HHS U01 MH046373NINDS NIH HHS R01 NS057295
6 · The paper itself

Abstract

objectivesMore than 30 different rare mutations, including copy number variants (CNVs), in the amyloid precursor protein gene (APP) cause early-onset familial Alzheimer disease (EOFAD), whereas the contribution of common APP variants to disease risk remains controversial. In this study we systematically assessed the role of both rare and common APP DNA variants in Alzheimer disease (AD) families.

methodsFamilies with EOFAD genetically linked to the APP region were screened for missense mutations and locus duplications of APP. Further, using genome-wide DNA microarray data, we examined the APP locus for CNVs in a total of 797 additional early- and late-onset AD pedigrees. Finally, 423 single nucleotide polymorphisms (SNPs) in the APP locus, including 2 promoter polymorphisms previously associated with AD risk, were tested in up to 4,200 individuals from multiplex AD families.

resultsAnalyses of 8 21q21-linked families revealed one family carrying a nonsynonymous mutation in exon 17 (Val717Leu) and another family with a partially penetrant 3.5-Mb locus duplication encompassing APP. CNV analysis in the APP locus revealed an additional family carrying a fully penetrant 380-kb duplication, merely spanning APP. Last, contrary to previous reports, association analyses of more than 400 different SNPs in or near APP failed to show significant effects on AD risk.

conclusionOur study shows that APP mutations and locus duplications are a very rare cause of EOFAD and that the contribution of common APP variants to AD susceptibility is insignificant. Furthermore, duplications of APP may not be fully penetrant, possibly indicating the existence of hitherto unknown protective genetic factors.

Indexed as

AgedAlzheimer DiseaseAmyloid beta-Protein PrecursorDNA Copy Number VariationsFemaleGenetic LociGenetic Predisposition to DiseaseGenome-Wide Association StudyHumansMaleMiddle AgedMutation, MissensePedigreePolymorphism, Single NucleotideAmyloid beta-Protein PrecursorAPP protein, human

Identifiers

PMID22491860
PMCPMC3324321
OpenAlexW2080882681

What OpenQuestion holds

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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.