AI Article Synopsis

  • Atrophy of both white and grey matter in the brains of people with multiple sclerosis (pwMS) occurs early and has significant clinical implications, which can be measured using MRI scans and automated software tools like "md brain."
  • This study looked at brain volumes from routine MRI scans of 53 pwMS, comparing those with higher disability scores (EDSS ≥ 3.5) and longer disease duration (≥ 10 years) to those with lower scores and shorter disease duration, as well as considering the impact of immunotherapy.
  • Results indicated that pwMS with higher EDSS scores and longer disease duration had notably smaller total brain and regional grey matter volumes, particularly in various lobes, and that those not receiving immunotherapy

Article Abstract

Background: Atrophy of white and grey matter volumes occurs early in the brains of people with multiple sclerosis (pwMS) and has great clinical relevance. In clinical trials, brain atrophy can be quantified by magnetic resonance imaging (MRI) with automated software tools.

Methods: In this study, we analyze volumes of various brain regions with the software "md brain" based on routine MRI scans of 53 pwMS in a real-world setting. We compare brain volumes of pwMS with an EDSS ≥ 3.5 and a disease duration ≥ 10 years to the brain volumes of pwMS with an EDSS < 3.5 and a disease duration < 10 years as well as with or without immunotherapy.

Results: pwMS with an EDSS ≥ 3.5 and a disease duration ≥ 10 years had significantly lower volumes of the total brain, the grey matter and of the frontal, temporal, parietal and occipital lobe regions as compared to pwMS with an EDSS < 3.5 and a disease duration < 10 years. Regional brain volumes were significantly lower in pwMS without immunotherapy.

Conclusions: The study showed that higher EDSS, longer disease duration and absence of immunotherapy was associated with lower volumes in a number of brain regions. Further real-world studies may include larger patient cohorts in longitudinal analyses.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11308334PMC
http://dx.doi.org/10.1186/s42466-024-00339-yDOI Listing

Publication Analysis

Top Keywords

brain atrophy
8
multiple sclerosis
8
brain volumes
8
volumes pwms
8
brain
5
real-world analysis
4
analysis brain
4
atrophy multiple
4
sclerosis patients
4
patients artificial
4

Similar Publications

Background: Most cases of spinal muscular atrophy (SMA) can be diagnosed by copy number analysis of survival motor neuron (SMN) 1. However, a small number of cases of SMA can only be diagnosed by sequencing analysis. We present a case of SMA diagnosed 7 years after the onset of symptoms.

View Article and Find Full Text PDF

Effect of siponimod on retinal thickness, a marker of neurodegeneration, in participants with SPMS: Findings from the EXPAND OCT substudy.

Mult Scler Relat Disord

January 2025

Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), Departments of Head, Spine and Neuromedicine, Clinical Research, Biomedicine and Biomedical Engineering, University Hospital and University of Basel, Basel, Switzerland.

Background: People with MS show abnormal thinning of the retinal layers, which is associated with clinical disability and brain atrophy, and is a potential surrogate marker of neurodegeneration and treatment effects.

Objective: To evaluate the utility of retinal thickness as a surrogate marker of neurodegeneration and treatment effect in participants with secondary progressive MS (SPMS) from the optical coherence tomography (OCT) substudy of the EXPAND Phase 3 clinical trial (siponimod versus placebo).

Methods: In the OCT substudy population (n = 159), treatment effects on change in the average thickness of the retinal layer, peripapillary retinal nerve fiber layer (pRNFL), and combined macular ganglion cell and inner plexiform layers (GCIPL) were analyzed by high-definition spectral domain OCT at months 3, 12, and 24.

View Article and Find Full Text PDF

Background And Objectives: Although multiple sclerosis (MS) can be conceptualized as a network disorder, brain network analyses typically require advanced MRI sequences not commonly acquired in clinical practice. Using conventional MRI, we assessed cross-sectional and longitudinal structural disconnection and morphometric similarity networks in people with MS (pwMS), along with their relationship with clinical disability.

Methods: In this longitudinal monocentric study, 3T structural MRI of pwMS and healthy controls (HC) was retrospectively analyzed.

View Article and Find Full Text PDF

Attenuating hyperammonemia preserves protein synthesis and muscle mass via restoration of perturbed metabolic pathways in bile duct-ligated rats.

Metab Brain Dis

January 2025

Hepato-Neuro Laboratory, Centre Hospitalier de l'Université de Montréal (CRCHUM), Université de Montréal, 900, Rue Saint-Denis - Pavillon R, R08.422, Montréal (Québec), H2X 0A9, Canada.

Sarcopenia and hepatic encephalopathy (HE) are complications of chronic liver disease (CLD), which negatively impact clinical outcomes. Hyperammonemia is considered to be the central component in the pathogenesis of HE, however ammonia's toxic effects have also been shown to impinge on extracerebral organs including the muscle. Our aim was to investigate the effect of attenuating hyperammonemia with ornithine phenylacetate (OP) on muscle mass loss and associated molecular mechanisms in rats with CLD.

View Article and Find Full Text PDF

Purpose: This study examined occupational histories in multiple system atrophy to identify environmental associations of potential relevance to disease causation.

Methods: A total of 270 neuropathologically confirmed cases of multiple system atrophy obtained from the Mayo Clinic Brain Bank for neurodegenerative disorders in Jacksonville, Florida, were included in this case-control study. Demographic and disease information was collected from medical records.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!