Evidence map›Paper›PMID 32661355›Full record

ArticleGenetics in medicine : official journal of the American College of Medical Genetics2020

Tracing the mutated HTT and haplotype of the African ancestor who spread Huntington disease into the Middle East.

Ferdinando Squitieri, Tommaso Mazza, Sabrina Maffi, Alessandro De Luca, Qasem AlSalmi, Salma AlHarasi, Jennifer A Collins, Chris Kay, Fiona Baine-Savanhu, Bernard G Landwhermeyer and 2 more

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In one paragraph

Article in Genetics in medicine : official journal of the American College of Medical Genetics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
0.7field-weighted citation impact, top 35% 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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Prevalence and Incidence of Huntington's Disease: An Updated Systematic Review and Meta-Analysis.Movement disorders : official journal of the Movement Disorder Society · 2022
    Pooled it
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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

12 authors at 6 institutions in 5 countries.

Ferdinando SquitieriHuntington and Rare Diseases Unit, Fondazione IRCCS Casa Sollievo della Sofferenza Research Hospital, San Giovanni Rotondo, Italy. f.squitieri@css-mendel.it.ORCID http://orcid.org/0000-0002-7397-1727
Tommaso MazzaBioinformatics Unit, Fondazione IRCCS Casa Sollievo della Sofferenza Research Hospital, San Giovanni Rotondo, Italy.
Sabrina MaffiHuntington and Rare Diseases Unit, Fondazione IRCCS Casa Sollievo della Sofferenza Research Hospital, San Giovanni Rotondo, Italy.
Alessandro De LucaMedical Genetics Unit, Fondazione IRCCS Casa Sollievo della Sofferenza Research Hospital, San Giovanni Rotondo, Italy.
Qasem AlSalmiNational Genetic Centre, Royal Hospital, Ministry of Health, Muscat, Sultanate of Oman.
Salma AlHarasiNational Genetic Centre, Royal Hospital, Ministry of Health, Muscat, Sultanate of Oman.
Jennifer A CollinsCentre for Molecular Medicine Therapeutics, Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada.
Chris KayCentre for Molecular Medicine Therapeutics, Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada.
Fiona Baine-SavanhuNHLS & School of Pathology, University of the Witwatersrand, Johannesburg, South Africa.
Bernard G LandwhermeyerAbteilung Neurologie, Universitätsklinik Ulm, Ulm, Germany.
Umberto SabatiniDepartment of Neuroradiology, University Magna Graecia, Catanzaro, Italy.
Michael R HaydenCentre for Molecular Medicine Therapeutics, Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada.
Casa Sollievo della Sofferenza · ITUniversity of British Columbia · CAMinistry of Health · OMMagna Graecia University · ITUniversität Ulm · DEUniversity of the Witwatersrand · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe aimed to determine the origin and genetic characteristics of Huntington disease (HD) in the Middle East.

methodsWe performed genetic and genealogical analyses to establish the ancestral origin of the HTT pathgenic variant from a large kindred from Oman (hereafter called the OM-HD-01 pedigree) by single-nucleotide polymorphism and dense haplotype analysis genotyping.

resultsWe traced the oldest ancestry of the largest, eight-generation, OM-HD-01 pedigree (n = 302 subjects, with 54 showing manifest HD) back to sub-Saharan Africa and identified a unique HD haplotype carried by all pedigree members, which consisted of portions of the C6 and C9 haplotypes and was carried by all affected members. Such a unique HD haplotype was of African origin and appeared to be associated with large CAG repeat expansions on average and high frequency of juvenile-onset HD. Three other families from the same area were also identified and found carrying a Caucasian HD haplotype A, also shared by most families of Arab ancestry.

conclusionMutated HTT spread into Middle East with a unique haplotype of African origin, appeared to be associated with juvenile-onset, a HD condition frequently occurring in Black Africans, and may have a significant impact on further development of novel targeted genetic therapies.

Indexed as

Huntington DiseaseAllelesHaplotypesHumansHuntingtin ProteinMiddle EastWhite PeopleHTT protein, humanHuntingtin Proteinhaplotype analysisHTTHuntington diseasejuvenile-onset Huntington diseaseSNP

Identifiers

PMID32661355
OpenAlexW3041770882

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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.