Evidence map›Paper›PMID 23165972›Full record

ArticleJournal of magnetic resonance imaging : JMRI2013

(1) H magnetic resonance spectroscopy of neurodegeneration in a mouse model of niemann-pick type C1 disease.

John W Totenhagen, Eriko S Yoshimaru, Robert P Erickson, Theodore P Trouard

Open access · bronzeAbstract read
In one paragraph

Article in Journal of magnetic resonance imaging : JMRI, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.2field-weighted citation impact, top 46% 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

2 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. 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

4 authors at 1 institution in 1 country.

John W TotenhagenBiomedical Engineering, University of Arizona, Tucson, AZ 85721, USA.
Eriko S Yoshimaru
Robert P Erickson
Theodore P Trouard
University of Arizona · US

Funding

Non-Invasive Monitoring of NPC Disease Progression and TherapyR01EB000343 · NIBIB · UNIVERSITY OF ARIZONA · PI TROUARD, THEODORE P · 2002 to 2010
$2.3M
NIBIB NIH HHS R01 EB000343NIBIB NIH HHS R01-EB000343
6 · The paper itself

Abstract

purposeTo evaluate brain metabolite levels as in vivo indicators of disease progression in a widely studied mouse model of Niemann-Pick type C1 (NPC1) disease with quantitative (1) H magnetic resonance spectroscopy (MRS). MATERIALS AND

methodsSingle voxel MRS experiments were carried out in vivo in a mouse model of NPC1 disease and in control mice in two brain regions (central and posterior) at two timepoints (presymptomatic and endstage) to examine changes in metabolite levels in NPC1 disease. Concentrations of nine metabolites were quantified by fitting a simulated basis set of metabolite signals to the acquired spectra.

resultsThe only differences found in brain metabolite levels between NPC1 disease model and control mice were increased myo-inositol and decreased taurine in the posterior region of the brain at the endstage of the disease. Metabolite changes reported in past clinical MRS studies of NPC disease were not found in the current study of the mouse model.

conclusionsThe (1) H spectra obtained from NPC1 mice and control mice were very similar, even at endstages of the disease. Although differences in two metabolites associated with neurodegenerative diseases were found and could inform future studies of the disease model, it appears that MRS in this mouse model of NPC1 disease does not have the sensitivity desired for a biomarker.

Indexed as

AnimalsAspartic AcidBiomarkersBrainCholineMagnetic Resonance SpectroscopyMiceMice, Inbred BALB CMice, TransgenicNeurodegenerative DiseasesNiemann-Pick Disease, Type CProtonsReproducibility of ResultsSensitivity and SpecificityTissue DistributionAspartic AcidBiomarkersCholineN-acetylaspartateProtons

Identifiers

PMID23165972
PMCPMC3652275
OpenAlexW1976881010

What OpenQuestion holds

Textmetadata
LicenceTDM
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.