Evidence map›Paper›PMID 34248927›Full record

ArticleFrontiers in immunology2021

A Novel Homozygous In-Frame Deletion in Complement Factor 3 Underlies Early-Onset Autosomal Recessive Atypical Hemolytic Uremic Syndrome - Case Report.

Shirley Pollack, Israel Eisenstein, Adi Mory, Tamar Paperna, Ayala Ofir, Hagit Baris-Feldman, Karin Weiss, Nóra Veszeli, Dorottya Csuka, Revital Shemer and 3 more

Open access · goldAbstract readCase Reports
In one paragraph

Article in Frontiers in immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.1field-weighted citation impact, top 60% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. The Complement System.Advances in experimental medicine and biology · 2025
    Review
  2. Review
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

13 authors at 3 institutions in 2 countries.

Shirley PollackPediatric Nephrology Institute, Ruth Children's Hospital, Haifa, Israel.
Israel EisensteinPediatric Nephrology Institute, Ruth Children's Hospital, Haifa, Israel.
Adi MoryGenetic Institute, Haifa, Israel.
Tamar PapernaGenetic Institute, Haifa, Israel.
Ayala OfirGenetic Institute, Haifa, Israel.
Hagit Baris-FeldmanGenetic Institute, Haifa, Israel.
Karin WeissGenetic Institute, Haifa, Israel.
Nóra VeszeliResearch Laboratory, Department of Internal Medicine and Haematology, and MTA-SE Research Group of Immunology and Hematology, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary.
Dorottya CsukaResearch Laboratory, Department of Internal Medicine and Haematology, and MTA-SE Research Group of Immunology and Hematology, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary.
Revital ShemerLaboratory of Molecular Medicine, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel.
Fabian GlaserBioinformatics Knowledge Unit, The Lorry I. Lokey Interdisciplinary Center for Life Sciences and Engineering, Technion-Israel Institute of Technology, Haifa, Israel.
Zoltán ProhászkaResearch Laboratory, Department of Internal Medicine and Haematology, and MTA-SE Research Group of Immunology and Hematology, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary.
Daniella MagenPediatric Nephrology Institute, Ruth Children's Hospital, Haifa, Israel.
University of Haifa · ILTechnion – Israel Institute of Technology · ILSemmelweis University · HU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and Objectives: Atypical hemolytic uremic syndrome (aHUS) is mostly attributed to dysregulation of the alternative complement pathway (ACP) secondary to disease-causing variants in complement components or regulatory proteins. Hereditary aHUS due to C3 disruption is rare, usually caused by heterozygous activating mutations in the Design Setting Participants & Measurements: A male neonate with eculizumab-responsive fulminant aHUS and C3 hypocomplementemia, and six of his healthy close relatives were investigated. Genetic analysis on genomic DNA was performed by exome sequencing of the patient, followed by targeted Sanger sequencing for variant detection in his close relatives. Complement components analysis using specific immunoassays was performed on frozen plasma samples from the patient and mother. Results: Exome sequencing revealed a novel homozygous variant in exon 26 of Conclusions: Our findings represent the first description of aHUS secondary to a novel homozygous deletion in C3 with ensuing unbalanced C3 over-activation, highlighting a critical role for the disrupted C3-TED domain in the disease mechanism.

Indexed as

Sequence DeletionAtypical Hemolytic Uremic SyndromeBase SequenceChild, PreschoolComplement ActivationComplement C3Complement Membrane Attack ComplexExome SequencingGenes, RecessiveHomozygoteHumansMaleComplement C3Complement Membrane Attack Complexalternative complement pathwayatypical hemolytic uremic syndrome (aHUS)complement factor C3eculizumabhomozygous deletion

Identifiers

PMID34248927
PMCPMC8264753
OpenAlexW3173801067

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.