Evidence map›Paper›PMID 30898509›Full record

SynthesisClinica chimica acta; international journal of clinical chemistry2019

Genetic determinants of circulating haptoglobin concentration.

Nabila Kazmi, Yoshiro Koda, Ndeye Coumba Ndiaye, Sophie Visvikis-Siest, Matthew J Morton, Tom R Gaunt, Ian Galea

Open access · hybridAbstract readMeta-Analysis
In one paragraph

Synthesis in Clinica chimica acta; international journal of clinical chemistry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.1field-weighted citation impact, top 25% 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

10 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Haptoglobin genotype and outcome after aneurysmal subarachnoid haemorrhage.Journal of neurology, neurosurgery, and psychiatry · 2020
    Observational
  8. Haptoglobin genotype and outcome after spontaneous intracerebral haemorrhage.Journal of neurology, neurosurgery, and psychiatry · 2020
    Observational
  9. Review
  10. Observational
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

7 authors at 4 institutions in 3 countries.

Nabila KazmiMRC Integrative Epidemiology Unit (IEU), Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
Yoshiro KodaDepartment of Forensic Medicine, Kurume University School of Medicine, Kurume 830-0011, Japan.
Ndeye Coumba NdiayeUniversité de Lorraine, Inserm, IGE-PCV, Nancy, France.
Sophie Visvikis-SiestUniversité de Lorraine, Inserm, IGE-PCV, Nancy, France.
Matthew J MortonClinical Neurosciences, Clinical & Experimental Sciences, Faculty of Medicine, University of Southampton, UK.
Tom R GauntMRC Integrative Epidemiology Unit (IEU), Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
Ian GaleaClinical Neurosciences, Clinical & Experimental Sciences, Faculty of Medicine, University of Southampton, UK. Electronic address: I.Galea@soton.ac.uk.
Interactions Gène-Environnement en Physiopathologie Cardio-Vasculaire · FRUniversity of Bristol · GBUniversity of Southampton · GBKurume University · JP

Funding

Cancer Research UK 19169Medical Research Council G9815508Medical Research Council MC_PC_15018Medical Research Council MC_PC_19009Medical Research Council MC_UU_00011/4
6 · The paper itself

Abstract

Haptoglobin (Hp) is a major plasma acute-phase glycoprotein, which binds free haemoglobin to neutralize its toxicity. The HP gene exists as two copy number variants (CNV), Hp1 and HP2, which differ in two ways: serum Hp level and functional differences in Hp protein products. Both mechanisms may underlie the HP CNV's influence on susceptibility and/or outcome in several diseases. A single nucleotide polymorphism rs2000999 has also been associated with serum Hp level. In a meta-analysis of three studies from England, France and Japan, with a combined sample size of 1210 participants, we show that rs2000999's effect on circulating Hp level is independent from that of the HP CNV. The combined use of rs2000999 and the HP CNV can be an important genetic epidemiological tool to discriminate between the two potential mechanisms underlying differences between HP1 and HP2 alleles.

Indexed as

AllelesAdolescentAdultBlood Chemical AnalysisDNA Copy Number VariationsFemaleFranceGenotypeHaptoglobinsHumansJapanMaleMolecular EpidemiologyPolymorphism, Single NucleotideUnited KingdomHaptoglobinsALSPACCopy number variantHaptoglobin

Identifiers

PMID30898509
PMCPMC6541910
OpenAlexW2921341718

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.