Evidence map›Paper›PMID 23028804›Full record

ArticlePloS one2012

Mitochondrial genomic analysis of late onset Alzheimer's disease reveals protective haplogroups H6A1A/H6A1B: the Cache County Study on Memory in Aging.

Perry G Ridge, Taylor J Maxwell, Christopher D Corcoran, Maria C Norton, Joann T Tschanz, Elizabeth O'Brien, Richard A Kerber, Richard M Cawthon, Ronald G Munger, John S K Kauwe

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

31 citing papers in PubMed, 51 citations in OpenAlex.

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  15. Assembly of 809 whole mitochondrial genomes with clinical, imaging, and fluid biomarker phenotyping.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2018
    Article
  16. Review
  17. Frontiers in neuroscience · 2018
    Review
  18. 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

10 authors at 6 institutions in 1 country.

Perry G RidgeDepartment of Biology, Brigham Young University, Provo, Utah, USA.
Taylor J Maxwell
Christopher D Corcoran
Maria C Norton
Joann T Tschanz
Elizabeth O'Brien
Richard A Kerber
Richard M Cawthon
Ronald G Munger
John S K Kauwe
Utah State University · USUniversity of Louisville · USARUP Laboratories (United States) · USBrigham Young University · USThe University of Texas Health Science Center at Houston · USUniversity of Utah · US

Funding

EPIDEMIOLOGY OF DEMENTIA IN CACHE COUNTY, UTAHR01AG011380 · NIA · JOHNS HOPKINS UNIVERSITY · PI WELSH-BOHMER, KATHLEEN ANNE · 1994 to 2009
$12.2M
Progression of Dementia: A Population StudyR01AG021136 · NIA · UTAH STATE UNIVERSITY · PI LYKETSOS, CONSTANTINE G, TSCHANZ, JOANN T · 2002 to 2010
$6.0M
Lifespan Stressors and Alzheimer's Disease: The Cache County StudyR01AG031272 · NIA · UTAH STATE UNIVERSITY · PI NORTON, MARIA C · 2008 to 2010
$967k
NIA NIH HHS R01 AG011380NIA NIH HHS R01 AG021136NIA NIH HHS R01 AG031272NIA NIH HHS R01AG11380NIA NIH HHS R01AG21136NIA NIH HHS R01AG31272
6 · The paper itself

Abstract

backgroundAlzheimer's disease (AD) is the most common cause of dementia and AD risk clusters within families. Part of the familial aggregation of AD is accounted for by excess maternal vs. paternal inheritance, a pattern consistent with mitochondrial inheritance. The role of specific mitochondrial DNA (mtDNA) variants and haplogroups in AD risk is uncertain. METHODOLOGY/PRINCIPAL

findingsWe determined the complete mitochondrial genome sequence of 1007 participants in the Cache County Study on Memory in Aging, a population-based prospective cohort study of dementia in northern Utah. AD diagnoses were made with a multi-stage protocol that included clinical examination and review by a panel of clinical experts. We used TreeScanning, a statistically robust approach based on haplotype networks, to analyze the mtDNA sequence data. Participants with major mitochondrial haplotypes H6A1A and H6A1B showed a reduced risk of AD (p=0.017, corrected for multiple comparisons). The protective haplotypes were defined by three variants: m.3915G>A, m.4727A>G, and m.9380G>A. These three variants characterize two different major haplogroups. Together m.4727A>G and m.9380G>A define H6A1, and it has been suggested m.3915G>A defines H6A. Additional variants differentiate H6A1A and H6A1B; however, none of these variants had a significant relationship with AD case-control status. CONCLUSIONS/SIGNIFICANCE: Our findings provide evidence of a reduced risk of AD for individuals with mtDNA haplotypes H6A1A and H6A1B. These findings are the results of the largest study to date with complete mtDNA genome sequence data, yet the functional significance of the associated haplotypes remains unknown and replication in others studies is necessary.

Indexed as

Genetic Predisposition to DiseaseMemoryAgedAgingAlzheimer DiseaseDemographyDNA, MitochondrialFemaleGenetic VariationGenome, MitochondrialHaplotypesHumansMaleRisk FactorsUtahDNA, Mitochondrial

Identifiers

PMID23028804
PMCPMC3444479
OpenAlexW2042141031

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.