Evidence map›Paper›PMID 34946939›Full record

ReviewGenes2021

Genetic Insights into the Impact of Complement in Alzheimer's Disease.

Megan Torvell, Sarah M Carpanini, Nikoleta Daskoulidou, Robert A J Byrne, Rebecca Sims, B Paul Morgan

Open access · goldAbstract readReview
In one paragraph

Review in Genes, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

19 citing papers in PubMed, 25 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. PreoperativeFrontiers in bioinformatics · 2026
    Review
  5. Review
  6. The Alzheimer's disease-associated complement receptor 1 variant confers risk by impacting glial phagocytosis.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. The complement system in neurodegenerative diseases.Clinical science (London, England : 1979) · 2024
    Article
  11. Article
  12. Review
  13. Review
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. 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 2 institutions in 1 country.

Megan TorvellUK Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Cardiff CF24 4HQ, UK.
Sarah M CarpaniniUK Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Cardiff CF24 4HQ, UK.ORCID 0000-0002-7609-7529
Nikoleta DaskoulidouUK Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Cardiff CF24 4HQ, UK.
Robert A J ByrneUK Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Cardiff CF24 4HQ, UK.
Rebecca SimsDivision of Psychological Medicine and Clinical Neuroscience, School of Medicine, Cardiff University, Cardiff CF24 4HQ, UK.ORCID 0000-0002-3885-1199
B Paul MorganUK Dementia Research Institute Cardiff, School of Medicine, Cardiff University, Cardiff CF24 4HQ, UK.ORCID 0000-0003-4075-7676
UK Dementia Research Institute · GBCardiff University · GB

Funding

Medical Research Council MR/N029402/1
6 · The paper itself

Abstract

The presence of complement activation products at sites of pathology in post-mortem Alzheimer's disease (AD) brains is well known. Recent evidence from genome-wide association studies (GWAS), combined with the demonstration that complement activation is pivotal in synapse loss in AD, strongly implicates complement in disease aetiology. Genetic variations in complement genes are widespread. While most variants individually have only minor effects on complement homeostasis, the combined effects of variants in multiple complement genes, referred to as the "complotype", can have major effects. In some diseases, the complotype highlights specific parts of the complement pathway involved in disease, thereby pointing towards a mechanism; however, this is not the case with AD. Here we review the complement GWAS hits;

Indexed as

Alzheimer DiseaseBrainClusterinComplement ActivationComplement C1sComplement System ProteinsGenetic Predisposition to DiseaseGenome-Wide Association StudyHumansPolymorphism, Single NucleotideReceptors, Complement 3bCLU protein, humanClusterinComplement C1sComplement System ProteinsCR1 protein, humanReceptors, Complement 3bclusterincomplementcomplement receptor 1geneticslate-onset Alzheimer’s diseaseneuroinflammation

Identifiers

PMID34946939
PMCPMC8702080
OpenAlexW4200406161

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.