Evidence map›Paper›PMID 36062320›Full record

ArticleMolecular genetics & genomic medicine2022

Spinal muscular atrophy carrier frequency in Saudi Arabia.

Mohammed Al Jumah, Saad Al Rajeh, Wafaa Eyaid, Ahmed Al-Jedai, Hajar Al Mudaiheem, Ali Al Shehri, Mohammed Hussein, Ibrahim Al Abdulkareem

Open access · goldAbstract read
In one paragraph

Article in Molecular genetics & genomic medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

15 citing papers in PubMed, 16 citations in OpenAlex.

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  15. Spinal muscular atrophy carrier frequency in Saudi Arabia.Molecular genetics & genomic medicine · 2022
    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

8 authors at 7 institutions in 1 country.

Mohammed Al JumahKing Abdullah International Medical Research Centre, Riyadh, Saudi Arabia.ORCID 0000-0002-9820-9579
Saad Al RajehNeurology Division, King Saud University, Riyadh, Saudi Arabia.
Wafaa EyaidDepartment of Pediatrics, Genetics division, King Abdul Aziz Medical City, Riyadh, Saudi Arabia.
Ahmed Al-JedaiDeputyship of Therapeutic Affairs, Ministry of Health, Riyadh, Saudi Arabia.
Hajar Al MudaiheemKing Abdullah International Medical Research Centre, Riyadh, Saudi Arabia.
Ali Al ShehriNeuromuscular Integrated practice Unit, Neuroscience Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.
Mohammed HusseinNeurology Department, King Fahd Medical City Hospital, Riyadh, Saudi Arabia.
Ibrahim Al AbdulkareemSaudi Data and AI Authority National Center for AI, Riyadh, Saudi Arabia.
King Fahd Medical City · SAKing Abdulaziz Medical City · SAKing Abdullah International Medical Research Center · SAKing Faisal Specialist Hospital & Research Centre · SAKing Saud University · SAMinistry of Health · SASaudi Arabian Monetary Authority · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSpinal Muscular Dystrophy (SMA) is one of the leading causes of death in infants and young children from heritable diseases. Although no large-scale popultion-based studies have been done in Saudi Arabia, it is reported that the incidence of SMA is higher in the Saudi population partly because of the high degree of consanguineous marriages.

methodsThe final analysis included 4198 normal volunteers aged between 18 and 25 years old, 54.7% males, and 45.3% females. Whole blood was spotted directly from finger pricks onto IsoCode StixTM and genomic DNA was isolated using one triangle from the machine. To discern the SMN1 copy number independently from SMN2, Multiplex PCR with Dral restriction fragment analysis was completed. We used the carrier frequency and population-level data to estimate the prevalence of SMA in the population using the life-table method.

resultsThis data analysis showed the presence of one copy of the SMN1 gene in 108 samples and two copies in 4090 samples, which resulted from a carrier frequency of 2.6%. The carrier frequency was twofold in females reaching 3.7% compared to 1.6% in males. 27% of participants were children of first-cousin marriages. We estimated the birth incidence of SMA to be 32 per 100,000 birth and the total number of people living with SMA in the Kingdom of Saudi Arabia to be 2265 of which 188 are type I, 1213 are type II, and 8,64 are type III.

conclusionThe SMA carrier rate of 2.6% in Saudi control subjects is slightly higher than the reported global frequency of 1.25 to 2% with links to the high degree of consanguinity.

Indexed as

Muscular Atrophy, SpinalAdolescentAdultChildChild, PreschoolConsanguinityFamilyFemaleHumansInfantMaleMultiplex Polymerase Chain ReactionSaudi ArabiaYoung Adultconsanguineous marriagesepidemiologymass screeningSaudi Arabiaspinal muscular atrophy

Identifiers

PMID36062320
PMCPMC9651606
OpenAlexW4294578324

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.