Evidence map›Paper›PMID 37086568›Full record

ArticleMolecular genetics and metabolism2023

Brain proton MR spectroscopy measurements in CLN3 disease.

An N Dang Do, Eva H Baker, Cristan A Farmer, Ariane G Soldatos, Audrey E Thurm, Forbes D Porter

Open access · greenAbstract read
In one paragraph

Article in Molecular genetics and metabolism, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 2 citations in OpenAlex.

  1. Guideline
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  4. 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

6 authors at 4 institutions in 1 country.

An N Dang DoEunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD, USA. Electronic address: an.dangdo@nih.gov.
Eva H BakerRadiology and Imaging Sciences Department, Clinical Center, NIH, Bethesda, MD, USA.
Cristan A FarmerNational Institute of Mental Health, NIH, Bethesda, MD, USA.
Ariane G SoldatosNational Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD, USA.
Audrey E ThurmNational Institute of Mental Health, NIH, Bethesda, MD, USA.
Forbes D PorterEunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD, USA.
Eunice Kennedy Shriver National Institute of Child Health and Human Development · USNational Institute of Mental Health · USNational Institute of Neurological Disorders and Stroke · USNational Institutes of Health Clinical Center · US

Funding

Neurodevelopmental and Behavioral Phenotyping ZICMH002961 · NIMH · NATIONAL INSTITUTE OF MENTAL HEALTH · PI THURM, AUDREY · 2017 to 2025
$12.6M
Clinical Investigations of Inborn Errors of MetabolismZIAHD008989 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI PORTER, FORBES · 2020 to 2025
$5.1M
Research Investigations of Cellular Stress in Development and DiseasesZIAHD009001 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI DANG DO, AN · 2022 to 2025
$4.9M
Intramural NIH HHS ZIA HD008989Intramural NIH HHS ZIA HD009001Intramural NIH HHS ZIC MH002961
6 · The paper itself

Abstract

backgroundCLN3 is an autosomal recessive lysosomal disorder with intracellular accumulation of ceroid-lipofuscins. CLN3 classically has onset around 4-6 years of age involving vision loss, followed by developmental regression and seizures. Symptoms are progressive and result in premature death. Because treatments are under development, here we explore magnetic resonance spectroscopy (MRS) measurements of metabolite levels in the brain as a potential objective outcome measures.

methodsIndividuals with genetically confirmed CLN3 were enrolled from October 2017-November 2021 in a prospective natural history study (NCT033007304). Baseline concentrations of brain metabolites measured by MRS were compared to concurrently collected dimensional assessment measures: Vineland-3 Adaptive Behavior Composite (ABC) score, verbal intelligence quotient (VIQ), and the Physical, Capability with actual vision, and Clinical global impression of change sub-domains of the Unified Batten Disease Rating Scale (UBDRS).

results27 participants with typical CLN3 presentation (15F:12M; ages 6.0-20.7 years) completed MRS, ABC, and UBDRS; 20 (12F:8M; ages 6.5-20.7 years) also completed the VIQ assessment. N-acetyl aspartate [B(95% CI) = -0.61(-0.78;-0.45)] and glutamine/glutamate/GABA [B(95% CI) = -0.82(-1.04;-0.6)] in the parietal gray matter (PGM) decreased across the ages. The strongest correlations between MRS metabolite measurements and the clinical severity assessments were found with N-acetyl aspartate [VIQ (ρ = 0.58), Vineland-3 ABC (ρ = 0.59), UBDRS |ρ| range = (0.57;0.7)] and glutamine/glutamate/GABA [VIQ (ρ = 0.57), Vineland-3 ABC (ρ = 0.60), UBDRS |ρ| range = (0.59;0.77)] measured in the midline PGM. These correlations were accounted for when age was considered.

conclusionsBased on their correlations to established assessments, NAA and glutamine/glutamate/GABA measured in the midline parietal gray matter may be useful indicators of CLN3 disease state. In a clinical trial, divergence of the MRS measurements and clinical severity markers from age may be useful as surrogate measures for treatment responses.

Indexed as

Neuronal Ceroid-LipofuscinosesProtonsAdolescentAdultBrainChildgamma-Aminobutyric AcidGlutamic AcidGlutamineHumansMagnetic Resonance SpectroscopyMembrane GlycoproteinsMolecular ChaperonesProspective StudiesYoung AdultCLN3 protein, humangamma-Aminobutyric AcidGlutamic AcidGlutamineMembrane GlycoproteinsMolecular ChaperonesProtonsGlxJuvenile neuronal ceroid lipofuscinosisNAANeurodevelopment

Identifiers

PMID37086568
PMCPMC10202445
OpenAlexW4365812445

What OpenQuestion holds

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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.