Evidence map›Paper›PMID 29619023›Full record

Trial reportFrontiers in immunology2018

Functional Complement Analysis Can Predict Genetic Testing Results and Long-Term Outcome in Patients With Complement Deficiencies.

Štefan Blazina, Maruša Debeljak, Mitja Košnik, Saša Simčič, Sanja Stopinšek, Gašper Markelj, Nataša Toplak, Peter Kopač, Breda Zakotnik, Marko Pokorn and 1 more

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in Frontiers in immunology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 42% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Immunodeficiency: Complement disorders.Allergy and asthma proceedings · 2024
    Review
  3. Review
  4. Case Report: C3 deficiency in two siblings.Frontiers in pediatrics · 2024
    Article
  5. Review
  6. 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

11 authors at 3 institutions in 1 country.

Štefan BlazinaDepartment of Allergology, Rheumatology and Clinical Immunology, Children's Hospital Ljubljana, University Medical Centre Ljubljana, Ljubljana, Slovenia.
Maruša DebeljakDepartment of Special Laboratory Diagnostics, Children's Hospital Ljubljana, University Medical Centre Ljubljana, Ljubljana, Slovenia.
Mitja KošnikUniversity Clinic of Pulmonary and Allergic Diseases Golnik, Golnik, Slovenia.
Saša SimčičFaculty of Medicine, Institute of Microbiology and Immunology, University of Ljubljana, Ljubljana, Slovenia.
Sanja StopinšekFaculty of Medicine, Institute of Microbiology and Immunology, University of Ljubljana, Ljubljana, Slovenia.
Gašper MarkeljDepartment of Allergology, Rheumatology and Clinical Immunology, Children's Hospital Ljubljana, University Medical Centre Ljubljana, Ljubljana, Slovenia.
Nataša ToplakDepartment of Allergology, Rheumatology and Clinical Immunology, Children's Hospital Ljubljana, University Medical Centre Ljubljana, Ljubljana, Slovenia.
Peter KopačUniversity Clinic of Pulmonary and Allergic Diseases Golnik, Golnik, Slovenia.
Breda ZakotnikDepartment of Infectious Diseases, University Medical Centre Ljubljana, Ljubljana, Slovenia.
Marko PokornDepartment of Infectious Diseases, University Medical Centre Ljubljana, Ljubljana, Slovenia.
Tadej AvčinDepartment of Allergology, Rheumatology and Clinical Immunology, Children's Hospital Ljubljana, University Medical Centre Ljubljana, Ljubljana, Slovenia.
Ljubljana University Medical Centre · SIUniversity of Ljubljana · SIUniversity Clinic of Pulmonary and Allergic Diseases Golnik · SI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Prevalence of complement deficiencies (CDs) is markedly higher in Slovenian primary immunodeficiency (PID) registry in comparison to other national and international PID registries. Objective: The purposes of our study were to confirm CD and define complete and partial CD in registered patients in Slovenia, to evaluate frequency of clinical manifestations, and to assess the risk for characteristic infections separately for subjects with complete and partial CD. Methods: CD was confirmed with genetic analyses in patients with C2 deficiency, C8 deficiency, and hereditary angioedema or with repeated functional complement studies and measurement of complement components in other CD. Results of genetic studies (homozygous subjects vs. heterozygous carriers) and complement functional studies were analyzed to define complete (complement below the level of heterozygous carriers) and partial CD (complement above the level of homozygous patients). Presence of characteristic infections was assessed separately for complete and partial CD. Results: Genetic analyses confirmed markedly higher prevalence of CD in Slovenian PID registry (26% of all PID) than in other national and international PID registries (0.5-6% of all PID). Complement functional studies and complement component concentrations reliably distinguished between homozygous and heterozygous CD carriers. Subjects with partial CD had higher risk for characteristic infections than previously reported. Conclusion: Results of our study imply under-recognition of CD worldwide. Complement functional studies and complement component concentrations reliably predicted risk for characteristic infections in patients with complete or partial CD. Vaccination against encapsulated bacteria should be advocated also for subjects with partial CD and not limited to complete CD.

Indexed as

Genetic Diseases, InbornImmunologic Deficiency SyndromesAdolescentAdultChild, PreschoolComplement C2Complement C8FemaleHeterozygoteHomozygoteHumansInfantMaleMiddle AgedPrevalenceRegistriesComplement C2Complement C8clinical manifestationscomplement deficiencygenetic analysislaboratory analysisprimary immunodeficiency

Identifiers

PMID29619023
PMCPMC5871747
OpenAlexW2790072472

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.