Evidence map›Paper›PMID 33811480›Full record

ArticleMolecular genetics & genomic medicine2021

Founder mutation in the PMM2 promotor causes hyperinsulinemic hypoglycaemia/polycystic kidney disease (HIPKD).

Sumaya Islam, Mehmet Tekman, Sarah E Flanagan, Lisa Guay-Woodford, Khalid Hussain, Sian Ellard, Robert Kleta, Detlef Bockenhauer, Horia Stanescu, Daniela Iancu

Open access · goldAbstract read
In one paragraph

Article in Molecular genetics & genomic medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.3field-weighted citation impact, top 34% 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

3 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Hyperinsulinemic Hypoglycemia Due toPediatric reports · 2022
    Article
  3. 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

10 authors at 5 institutions in 3 countries.

Sumaya IslamDepartment Renal Medicine, University College London, London, UK.
Mehmet TekmanDepartment Renal Medicine, University College London, London, UK.
Sarah E FlanaganInstitute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK.ORCID 0000-0002-8670-6340
Lisa Guay-WoodfordCenter for Translational Research, Children's National Hospital Health System, Washington, DC, USA.
Khalid HussainDepartment of Endocrinology, Sidra Medicine, Doha, Qatar.ORCID 0000-0002-5480-7112
Sian EllardInstitute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK.
Robert KletaDepartment Renal Medicine, University College London, London, UK.ORCID 0000-0002-0228-8656
Detlef BockenhauerDepartment Renal Medicine, University College London, London, UK.ORCID 0000-0001-5878-941X
Horia StanescuDepartment Renal Medicine, University College London, London, UK.
Daniela IancuDepartment Renal Medicine, University College London, London, UK.
University College London · GBGreat Ormond Street Hospital for Children NHS Foundation Trust · GBUniversity of Exeter · GBChildren's National · USQatar Airways (Qatar) · QA

Funding

Wellcome TrustWellcome Trust 105636/Z/14/Z
6 · The paper itself

Abstract

backgroundPolycystic kidney disease with hyperinsulinaemic hypoglycaemia (HIPKD) is a recently described disease caused by a single nucleotide variant, c.-167G>T, in the promoter region of PMM2 (encoding phosphomannomutase 2), either in homozygosity or compound heterozygosity with a pathogenic coding variant in trans. All patients identified so far are of European descent, suggesting a possible founder effect.

methodsWe generated high density genotyping data from 11 patients from seven unrelated families, and used this information to identify a common haplotype that included the promoter variant. We estimated the age of the promoter mutation with DMLE+ software, using demographic parameters corresponding to the European population.

resultsAll patients shared a 0.312 Mb haplotype which was absent in 503 European controls available in the 1000 Genomes Project. The age of this mutation was estimated as 105-110 generations, indicating its occurrence around 600 BC, a time of intense migration, which might explain the presence of the same mutations in Europeans around the globe.

conclusionThe shared unique haplotype among seemingly unrelated patients is consistent with a founder effect in Europeans.

Indexed as

Founder EffectMutationPromoter Regions, GeneticAllelesChromosome MappingFamilyFemaleGenetic Association StudiesGenetic Predisposition to DiseaseGenome-Wide Association StudyGenotypeHumansHypoglycemiaMalePhosphotransferases (Phosphomutases)Polycystic Kidney Diseasesphosphomannomutase 2, humanPhosphotransferases (Phosphomutases)founder effecthyperinsulinismhypoglycaemiaPMM2 genepolycystic kidney diseasepromoter

Identifiers

PMID33811480
PMCPMC8683636
OpenAlexW3148901101

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Registered trials

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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.