Functional connectome analysis reveals different alterations between relapsing remitting multiple sclerosis with short and longer disease duration

Author(s):  
Gloria Castellazzi
Neurology ◽  
1992 ◽  
Vol 42 (1) ◽  
pp. 60-60 ◽  
Author(s):  
A. J. Thompson ◽  
D. Miller ◽  
B. Youl ◽  
D. MacManus ◽  
S. Moore ◽  
...  

2002 ◽  
Vol 8 (1) ◽  
pp. 10-14 ◽  
Author(s):  
C Liu ◽  
L D Blumhardt

The treatment effects of recent immunomodulatory therapies on disease progression in relapsing-remitting multiple sclerosis (MS) have been mostly established from ‘confirmed progression’ endpoints. However, the reliability of this outcome measure is poor and a significant proportion of patients may be erroneously classified. We previously proposed the area under disability/time curves to quantify in-trial disability changes, but although these have advantages, they lack information on the direction of change. We have therefore performed disease trend analyses and categorical classifications using serial Expanded Disability Status Scale (EDSS) scores from the 533 complete datasets in a double-blind, randomized, placebo-controlled, phase III trial of subcutaneous interferon β-1a (IFNβ-1a) (PRISMS study). We found significant treatment benefits for IFNβ-1a on in-trial disability course (P=0.002). Therapeutic advantages remained when relapse-related assessments were excluded (P=0.018). Post hoc analyses demonstrated that IFNβ-1a was mainly effective in both increasing the proportion of patients with a ‘stable’ course and reducing those with prolonged, disabling deteriorations. Baseline disease duration and EDSS levels, but not MRI lesion load, predicted the subsequent disability trends. Mean ‘numbers needed to treat’ (NNTs) to obtain preferred disability courses were reduced in patients with shorter disease duration. These results have important implications for the targeting of immunomodulatory therapies in MS.


2000 ◽  
Vol 6 (5) ◽  
pp. 332-337 ◽  
Author(s):  
T L Luks ◽  
D E Goodkin ◽  
S J Nelson ◽  
S Majumdar ◽  
P Bacchetti ◽  
...  

The specific aim of this study was to determine whether progressive brain atrophy could be detected within 18 months of establishing a diagnosis of relapsing-remitting multiple sclerosis (RRMS). Fifteen patients with clinically definite RRMS (mean disease duration from first symptom=6 months, mean EDSS=1.2) completed 6-14 monthly quantitative MRI sessions. The volume of the lateral ventricles was determined each month using a semi-automated thresholding technique from T1-weighted axial images. The number of new monthly gadolinium-enhancing (Gd+) lesions and EDSS scores were also recorded. Lateral ventricular volumes increased significantly during this study. When individual data were examined, statistically significant changes were observed in six of 15 patients. Monthly change in ventricular volume was related to baseline EDSS and total number of new Gd+ lesions. These observations indicate brain atrophy, a putative imaging marker of diffuse demyelination and axonal loss, can occur as early as 18 months after first symptons of RRMS, and is related to the baseline level of disability and to the number of new Gd+ lesions.


2002 ◽  
Vol 8 (1_suppl) ◽  
pp. 10-14 ◽  
Author(s):  
C. Liu ◽  
LD Blumhardt

The treatment effects of recent immunomodulatory therapies on disease progression in relapsing-remitting multiple sclerosis (MS) have been mostly established from 'confirmed progression' endpoints. However, the reliability of this outcome measure is poor and a significant proportion of patients may be erroneously classified. We previously proposed the area under disability/time curves to quantify in-trial disability changes, but although these have advantages, they lack information on the direction of change. We have therefore performed disease trend analyses and categorical classifications using serial Expanded Disability Status Scale (EDSS) scores from the 533 complete datasets in a double-blind, randomized, placebo-controlled, phase III trial of subcutaneous interferon β-1a (IFNβ-1a) (PRISMS study). We found significant treatment benefits for IFNβ-1a on in-trial disability course (P=0.002). Therapeutic advantages remained when relapse-related assessments were excluded (P=0.018). Post hoc analyses demonstrated that IFNβ-la was mainly effective in both increasing the proportion of patients with a 'stable' course and reducing those with prolonged, disabling deteriorations. Baseline disease duration and EDSS levels, but not MRI lesion load, predicted the subsequent disability trends. Mean 'numbers needed to treat' (NNTs) to obtain preferred disability courses were reduced in patients with shorter disease duration. These results have important implications for the targeting of immunomodulatory therapies in MS. Multiple Sclerosis (2002) 8, 10-14


2009 ◽  
Vol 16 (1) ◽  
pp. 45-54 ◽  
Author(s):  
A. Prinster ◽  
M. Quarantelli ◽  
R. Lanzillo ◽  
G. Orefice ◽  
G. Vacca ◽  
...  

Previous studies have shown a preferential loss of grey matter in fronto-temporal regions in patients with multiple sclerosis. Studies of correlates of disease severity are more controversial, because some studies have suggested an association between sensorimotor cortex atrophy and Expanded Disability Status Scale score, while others did not find such a correlation. The objective of this study was to assess the correlation of regional loss of grey matter and white matter with indexes of clinical and radiological severity in relapsing—remitting multiple sclerosis, including the Expanded Disability Status Scale and lesion load. Correlations between Expanded Disability Status Scale, lesion load and disease duration were assessed in 128 patients with relapsing—remitting multiple sclerosis (Expanded Disability Status Scale range 1.0—6.0) using optimized voxel-based morphometry. Bilateral loss of grey matter in sensorimotor cortices was correlated with Expanded Disability Status Scale, and tissue loss also involved adjacent white matter, extending along pyramidal tracts to the brainstem. Increasing lesion load was correlated with loss of deep grey matter and white matter. No specific region of grey matter or white matter showed a significant correlation with disease duration. These findings support the hypothesis that motor neuron involvement plays a major role in the progression of physical disability. Lesion load accrual affects mainly highly interconnected subcortical structures, while disease duration has a less significant impact on brain atrophy, probably owing to the inter-subject heterogeneity of the clinical course of the disease.


2010 ◽  
Vol 16 (6) ◽  
pp. 701-706 ◽  
Author(s):  
V. Mastorodemos ◽  
H. Nikolakaki ◽  
M. Tzagournissakis ◽  
D. Kotzamani ◽  
T. Panou ◽  
...  

Our objective was to study multiple sclerosis on Crete, an island of 0.6 million inhabitants sharing a similar genetic background and the same environment. Case ascertainment was achieved using the MS Epidemiology Program Project of Crete. The diagnosis and classification of multiple sclerosis were made by established clinical and magnetic resonance imaging criteria, and disease evolution was assessed by periodic evaluations. Thorough clinical and laboratory evaluations were conducted; a detailed history, including a questionnaire of 36 items, was taken. Data obtained were analysed for possible interaction with disease prognosis. We identified 587 cases of multiple sclerosis (F:M = 1.6), >90% of which were of Cretan origin from both parental lines. Age at onset was 31.5 ± 10.3 years (mean ± SD) and disease duration 12.7 ± 9.1 years. About 84.6% had relapsing remitting multiple sclerosis, 9.4% primary progressive multiple sclerosis and 6% clinically isolated syndrome. Nearly 40% of our multiple sclerosis patients with disease duration >10 years (mean = 16.2 ± 5.3 years) remained with no or mild disability (Expanded Disability Status Scale [EDSS] ≤3). Also, about 30% of patients with relapsing remitting multiple sclerosis showed benign disease evolution (EDSS ≤3) more than 20 years (mean = 24.0 ± 3.3) after onset. Factors predisposing to benign multiple sclerosis included younger age at onset, shorter disease duration and a lower number of relapses. We conclude that a substantial proportion of patients with multiple sclerosis from Crete follow a rather benign disease course, and this may relate to the genetic background of the population and/or to environmental factors.


Author(s):  
Elena Lozano-Soto ◽  
Álvaro Javier Cruz-López ◽  
Rafael Gutiérrez ◽  
Macarena González ◽  
Florencia Sanmartino ◽  
...  

Abstract Objective This retrospective observational study aimed to define neuropsychological impairment (NI) profiles and determine the influence of clinical, demographic, and neuropsychiatric measures in specific cognitive domains in a cohort of relapsing–remitting multiple sclerosis (RRMS) patients. Methods Ninety-one RRMS patients underwent a neurological examination and a brief neuropsychological assessment. Patients were classified according to the disease-modifying therapies (DMTs) received (platform or high-efficacy). Differences between groups and multiple regression analyses were performed to determine the predictive value of the assessed measures in cognitive performance. Results More than two-thirds of the patients showed NI. Specifically, mild to moderate NI was presented in approximately half of the participants. Paced Auditory Serial Addition Test (PASAT-3) and Symbol Digit Modalities Test (SDMT) were the most frequently impaired cognitive tests (45.3% and 41.3%, respectively) followed by phonemic verbal fluency (PVF) (27.8%). Expanded Disability Status Scale (EDSS), age, depressive symptoms, and disease duration were the best predictors of SDMT (R2 = .34; p < .01), whereas disease duration, EDSS, and anxiety-state levels predicted PASAT-3 (R2 = .33, p < .01). Educational level, age, EDSS, and depressive symptoms demonstrated the strongest association with PVF (R2 = .31, p < .01). Conclusions Our results indicated a significant prevalence of NI in RRMS patients that was not dependent on the DMT type. In addition to the meaningful working memory (PASAT-3) and information processing speed (SDMT) impairments found, PVF deficits may also be an important marker of cognitive impairment in RRMS patients. This study supports the relevance of standard clinical measures and reinforces the importance of quantifying clinical and neuropsychiatric symptoms to predict subsequent cognitive performance on a similar multiple sclerosis phenotype and disease stage.


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