Evidence map›Paper›PMID 32302805›Full record

ArticleJournal of the neurological sciences2020

Novel likely disease-causing CLN5 variants identified in Pakistani patients with neuronal ceroid lipofuscinosis.

Beenish Azad, Stephanie Efthymiou, Tipu Sultan, Marcello Scala, Javeria Raza Alvi, Caroline Neuray, Natalia Dominik, SYNaPS Study Group, Asma Gul, Henry Houlden

Open access · hybridAbstract read
In one paragraph

Article in Journal of the neurological sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.4field-weighted citation impact, top 41% 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

5 citing papers in PubMed, 7 citations in OpenAlex.

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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

10 authors at 6 institutions in 4 countries.

Beenish AzadDepartment of Biological Sciences, International Islamic University Islamabad, H-10, Islamabad 44000, Pakistan; Department of Neuromuscular disorders, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK.
Stephanie EfthymiouDepartment of Neuromuscular disorders, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK. Electronic address: s.efthymiou@ucl.ac.uk.
Tipu SultanDepartment of Pediatric Neurology, The Children's Hospital and Institute of Child Health, Lahore 54600, Pakistan.
Marcello ScalaDepartment of Neuromuscular disorders, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK; Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy.
Javeria Raza AlviDepartment of Pediatric Neurology, The Children's Hospital and Institute of Child Health, Lahore 54600, Pakistan.
Caroline NeurayDepartment of Neuromuscular disorders, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK; Department of Neurology, Christian Doppler Klinik, Paracelsus Medical University, Salzburg, Austria.
Natalia DominikDepartment of Neuromuscular disorders, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK.
SYNaPS Study GroupDepartment of Biological Sciences, International Islamic University Islamabad, H-10, Islamabad 44000, Pakistan.
Asma GulDepartment of Biological Sciences, International Islamic University Islamabad, H-10, Islamabad 44000, Pakistan.
Henry HouldenDepartment of Neuromuscular disorders, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK. Electronic address: h.houlden@ucl.ac.uk.
International Islamic University, Islamabad · PKIstituto Giannina Gaslini · ITMRC Prion Unit · GBNational Hospital for Neurology and Neurosurgery · GBParacelsus Medical University · ATWellcome Centre for Human Neuroimaging · GB

Funding

Medical Research Council G0601943Medical Research Council G0802760Medical Research Council G1001253Medical Research Council G108/638Medical Research Council MC_UP_1502/3Medical Research Council MR/J004758/1Medical Research Council MR/S005021/1Medical Research Council MR/S01165X/1The Dunhill Medical Trust R605/0717Wellcome Trust
6 · The paper itself

Abstract

backgroundNeuronal ceroid lipofuscinosis (NCL) is a hereditary lysosomal storage disease with progressive brain neurodegeneration. Mutations in ceroid lipofuscinosis neuronal protein 5 (CLN5) cause CLN5 disease, a severe condition characterized by seizures, visual failure, motor decline, and progressive cognitive deterioration. This study aimed to identify causative gene variants in Pakistani consanguineous families diagnosed with NCL.

methodsAfter a thorough clinical and neuroradiological characterization, whole exome sequencing (WES) was performed in 3 patients from 2 unrelated families. Segregation analysis was subsequently performed through Sanger sequencing ANALYSIS: WES led to the identification of the 2 novel homozygous variants c.925_926del, (p.Leu309AlafsTer4) and c.477 T > C, (p.Cys159Arg).

conclusionIn this study, we report two novel CLN5 cases in the Punjab region of Pakistan. Our observations will help clinicians observe and compare common and unique clinical features of NCL patients, further improving our current understanding of NCL.

Indexed as

Lysosomal Membrane ProteinsNeuronal Ceroid-LipofuscinosesChildExome SequencingFemaleHomozygoteHumansMaleMembrane ProteinsPakistanCLN5 protein, humanLysosomal Membrane ProteinsMembrane ProteinsCLN5Exome sequencingNeuronal ceroid lipofuscinosis

Identifiers

PMID32302805
PMCPMC7306150
OpenAlexW3016158054

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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.