Evidence map›Paper›PMID 27357286›Full record

ArticleActa neuropathologica communications2016

The relationship between complement factor C3, APOE ε4, amyloid and tau in Alzheimer's disease.

Luke W Bonham, Rahul S Desikan, Jennifer S Yokoyama, Alzheimer’s Disease Neuroimaging Initiative

Open access · goldAbstract read
In one paragraph

Article in Acta neuropathologica communications, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 2 pooled it
4.7field-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

42 citing papers in PubMed, 2 syntheses or guidelines pooled it, 69 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Review
  6. APOE-Targeted Therapeutics for Alzheimer's Disease.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Review
  7. Exploring the intersection of atherosclerosis and Alzheimer's disease: the role of inflammation and complement activation.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025
    Review
  8. Article
  9. Observational
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Complement protein levels in serum astrocyte-derived exosomes are associated with cognitive impairment in obstructive sleep apnea.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2023
    Article
  17. Article
  18. Article
  19. Review
  20. Potential Progression Mechanism and Key Genes in Early Stage of mTBI.Evidence-based complementary and alternative medicine : eCAM · 2022
    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

4 authors at 2 institutions in 1 country.

Luke W BonhamMemory and Aging Center, Department of Neurology, University of California, San Francisco, 675 Nelson Rising Lane, Suite 190, San Francisco, CA, 94158, USA.
Rahul S DesikanNeuroradiology Section, Department of Radiology and Biomedical Imaging, University of California, San Francisco, 505 Parnassus Avenue, San Francisco, 94143, CA, USA. jennifer.yokoyama@ucsf.edu.
Jennifer S YokoyamaMemory and Aging Center, Department of Neurology, University of California, San Francisco, 675 Nelson Rising Lane, Suite 190, San Francisco, CA, 94158, USA. rahul.desikan@ucsf.edu.
Alzheimer’s Disease Neuroimaging Initiative
University of California, San Francisco · USUniversity Memory and Aging Center · US

Funding

Alzheimer's Disease Neuroimaging Initiative - SupplementU01AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI WEINER, MICHAEL W · 2004 to 2015
$121.0M
RNA signatures of frontotemporal dementia and ALS due to C9ORF72 expansionK01AG049152 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI YOKOYAMA, JENNIFER S · 2015 to 2019
$648k
CIHRNIA NIH HHS K01 AG049152NIA NIH HHS U01 AG024904
6 · The paper itself

Abstract

Inflammation is becoming increasingly recognized as an important contributor to Alzheimer's disease (AD) pathogenesis. As a part of the innate immune system, the complement cascade enhances the body's ability to destroy and remove pathogens and has recently been shown to influence Alzheimer's associated amyloid and tau pathology. However, little is known in humans about the effects of the complement system and genetic modifiers of AD risk like the ε4 allele of apolioprotein E (APOE ε4) on AD pathobiology. We evaluated cerebrospinal fluid (CSF) protein levels from 267 individuals clinically diagnosed as cognitively normal, mild cognitive impairment, and AD. Using linear models, we assessed the relationship between APOE ε4 genotype, CSF Complement 3 (C3), CSF amyloid-β (amyloid) and CSF hyperphosphorylated tau (ptau). We found a significant interaction between APOE ε4 and CSF C3 on both CSF amyloid and CSF ptau. We also found that CSF C3 is only associated with CSF ptau after accounting for CSF amyloid. Our results support a conceptual model of the AD pathogenic cascade where a synergistic relationship between the complement cascade (C3) and APOE ε4 results in elevated Alzheimer's neurodegeneration and in turn, amyloid further regulates the effect of the complement cascade on downstream tau pathology.

Indexed as

AgedAlzheimer DiseaseAmyloidAnalysis of VarianceApolipoprotein E4BiomarkersCognitive DysfunctionCohort StudiesComplement C3FemaleHumansLinear ModelsMalePhosphorylationtau ProteinsAmyloidApolipoprotein E4BiomarkersComplement C3MAPT protein, humantau ProteinsAlzheimer's diseaseAmyloidAPOE ε4AβCerebrospinal fluidComplement 3CSFphospho-tauptau

Identifiers

PMID27357286
PMCPMC4928261
OpenAlexW2474047706

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.