Pub Date : 2026-01-08DOI: 10.1016/j.msard.2026.106987
Mulan Jiang, Anastasia Vishnevetsky, Mattia Wruble Clark, Monique Anderson, Takahisa Mikami, Rebecca Gillani, Fabian Murillo, Joao Vitor Mahler Ferreira Oliveira, Rebecca Salky, Gabriela Romanow, Michael Levy, Philippe A. Bilodeau
{"title":"Lack of external validity of the MOG-AR score in a North American cohort","authors":"Mulan Jiang, Anastasia Vishnevetsky, Mattia Wruble Clark, Monique Anderson, Takahisa Mikami, Rebecca Gillani, Fabian Murillo, Joao Vitor Mahler Ferreira Oliveira, Rebecca Salky, Gabriela Romanow, Michael Levy, Philippe A. Bilodeau","doi":"10.1016/j.msard.2026.106987","DOIUrl":"10.1016/j.msard.2026.106987","url":null,"abstract":"","PeriodicalId":18958,"journal":{"name":"Multiple sclerosis and related disorders","volume":"107 ","pages":"Article 106987"},"PeriodicalIF":2.9,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-08DOI: 10.1016/j.msard.2026.106988
Christopher H Hawkes , Gavin Giovannoni , Jeanette Lechner-Scott , Michael Levy , Ann Yeh
{"title":"Why don’t all adults get multiple sclerosis?","authors":"Christopher H Hawkes , Gavin Giovannoni , Jeanette Lechner-Scott , Michael Levy , Ann Yeh","doi":"10.1016/j.msard.2026.106988","DOIUrl":"10.1016/j.msard.2026.106988","url":null,"abstract":"","PeriodicalId":18958,"journal":{"name":"Multiple sclerosis and related disorders","volume":"106 ","pages":"Article 106988"},"PeriodicalIF":2.9,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-08DOI: 10.1016/j.msard.2026.106980
Mohamed Ezzat M. Mansour , Omar Kassar , Khalid Radwan Alsaadany , Mohamed Awad E. Ahmed , Mufreh Amin , Mohamed H. Khalil , Yomna Emad Abdalla
Introduction
Smoking is a common factor that contributes to the development of Multiple sclerosis during embryogenesis. Several studies found a correlation between maternal or paternal smoking and the development of Multiple sclerosis in offspring. Given inconclusive findings from recent studies, we aim to conduct a systematic review and meta-analysis of the relation between parental tobacco smoking and the risk of Multiple sclerosis in offspring.
Methods
We systematically conducted comprehensive search screening including (PubMed, Scopus, Web of Science, Embase, and Cochrane Library) until July 2025. This study aimed to assess the relation between exposure to tobacco smoke during pregnancy (maternal and paternal smoking) and the risk of Multiple sclerosis in offspring. Pooled estimates were calculated using a random-effects model. The PROSPERO registration is CRD420251117243.
Results
This study included nine studies involving 1,405,641 participants, including 5,452 Multiple sclerosis patients. We did not find a correlation between maternal smoking during and before pregnancy and risk of Multiple sclerosis in offspring (OR = 1.13, 95% CI [0.9, 1.43], P-value= 0.30, I2= 53.7%), (OR = 1.11, 95% CI [0.83, 1.48], P-value= 0.48, I2 = 0%) respectively. We found a statistically significant association between paternal smoking and the risk of Multiple sclerosis in offspring (OR 1.62, 95% CI [1.24; 2.11], P-value= 0.00036, I2= 0%).
Conclusion
These findings highlight a complex relationship between parental smoking and offspring risk of MS. We observed no clear association for maternal smoking, whereas paternal smoking was associated with an increased risk in offspring. However, neither result is definitive, and further well-designed prospective studies are required to confirm these associations and clarify underlying mechanisms.
简介:吸烟是导致胚胎发育过程中多发性硬化症发生的一个常见因素。几项研究发现,母亲或父亲吸烟与后代患多发性硬化症之间存在相关性。鉴于最近的研究结果不确定,我们的目标是对父母吸烟与后代多发性硬化症风险之间的关系进行系统回顾和荟萃分析。方法:我们系统地进行了全面的检索筛选,包括(PubMed、Scopus、Web of Science、Embase和Cochrane Library),截止到2025年7月。本研究旨在评估怀孕期间暴露于烟草烟雾(母亲和父亲吸烟)与后代多发性硬化症风险之间的关系。汇总估计使用随机效应模型计算。普洛斯彼罗的注册号是CRD420251117243。结果:本研究包括9项研究,涉及1,405,641名参与者,包括5,452名多发性硬化症患者。我们没有发现孕期和孕前吸烟与后代多发性硬化症风险之间的相关性(OR = 1.13, 95% CI [0.9, 1.43], p值= 0.30,I2= 53.7%), (OR = 1.11, 95% CI [0.83, 1.48], p值= 0.48,I2= 0%)。我们发现父亲吸烟与后代患多发性硬化症的风险有统计学意义的关联(OR 1.62, 95% CI [1.24; 2.11], p值= 0.00036,I2= 0%)。结论:这些发现强调了父母吸烟与后代ms风险之间的复杂关系。我们没有观察到母亲吸烟与ms风险之间的明确关联,而父亲吸烟与后代ms风险增加有关。然而,这两个结果都不是决定性的,需要进一步精心设计的前瞻性研究来证实这些关联并阐明潜在的机制。
{"title":"Exposure to tobacco smoke during pregnancy and the risk of multiple sclerosis in offspring: A systematic review and meta-analysis","authors":"Mohamed Ezzat M. Mansour , Omar Kassar , Khalid Radwan Alsaadany , Mohamed Awad E. Ahmed , Mufreh Amin , Mohamed H. Khalil , Yomna Emad Abdalla","doi":"10.1016/j.msard.2026.106980","DOIUrl":"10.1016/j.msard.2026.106980","url":null,"abstract":"<div><h3>Introduction</h3><div>Smoking is a common factor that contributes to the development of Multiple sclerosis during embryogenesis. Several studies found a correlation between maternal or paternal smoking and the development of Multiple sclerosis in offspring. Given inconclusive findings from recent studies, we aim to conduct a systematic review and meta-analysis of the relation between parental tobacco smoking and the risk of Multiple sclerosis in offspring.</div></div><div><h3>Methods</h3><div>We systematically conducted comprehensive search screening including (PubMed, Scopus, Web of Science, Embase, and Cochrane Library) until July 2025. This study aimed to assess the relation between exposure to tobacco smoke during pregnancy (maternal and paternal smoking) and the risk of Multiple sclerosis in offspring. Pooled estimates were calculated using a random-effects model. The PROSPERO registration is CRD420251117243.</div></div><div><h3>Results</h3><div>This study included nine studies involving 1,405,641 participants, including 5,452 Multiple sclerosis patients. We did not find a correlation between maternal smoking during and before pregnancy and risk of Multiple sclerosis in offspring (OR = 1.13, 95% CI [0.9, 1.43], P-value= 0.30, I<sup>2</sup>= 53.7%), (OR = 1.11, 95% CI [0.83, 1.48], P-value= 0.48, I<sup>2</sup> = 0%) respectively. We found a statistically significant association between paternal smoking and the risk of Multiple sclerosis in offspring (OR 1.62, 95% CI [1.24; 2.11], P-value= 0.00036, I<sup>2</sup>= 0%).</div></div><div><h3>Conclusion</h3><div>These findings highlight a complex relationship between parental smoking and offspring risk of MS. We observed no clear association for maternal smoking, whereas paternal smoking was associated with an increased risk in offspring. However, neither result is definitive, and further well-designed prospective studies are required to confirm these associations and clarify underlying mechanisms.</div></div>","PeriodicalId":18958,"journal":{"name":"Multiple sclerosis and related disorders","volume":"107 ","pages":"Article 106980"},"PeriodicalIF":2.9,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146019124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-08DOI: 10.1016/j.msard.2026.106986
Claudia Alonso, Farren B.S. Briggs
{"title":"Letter to editor: Response to ‘psychological resilience as a mediator between depression and health-related quality of life in relapsing-remitting multiple sclerosis patients’","authors":"Claudia Alonso, Farren B.S. Briggs","doi":"10.1016/j.msard.2026.106986","DOIUrl":"10.1016/j.msard.2026.106986","url":null,"abstract":"","PeriodicalId":18958,"journal":{"name":"Multiple sclerosis and related disorders","volume":"107 ","pages":"Article 106986"},"PeriodicalIF":2.9,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145952657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.msard.2026.106983
Lidia Ammendola , Daniela Malangone , Maria Cropano , Mariachiara Gaita , Anna della Calce , Luigi Maffei , Nicola Moccaldi , Pasquale Arpaia , Giuseppe Romano , Luigi Trojano , Giacomo Lus , Gabriella Santangelo , Paolo De Blasiis , Elisabetta Signoriello , Simona Raimo
Objective
Theory of Mind (ToM) deficits are common in people with Multiple Sclerosis (PwMS). This pilot study evaluated the feasibility of an ecologically valid ToM training in PwMS and examined whether experimental transcranial direct current stimulation (tDCS) intervention targeting the prefrontal cortex could enhance its effects on cognitive and affective ToM components across verbal and nonverbal modalities.
Methods
Two studies were conducted. Study 1 employed a single-case design with three PwMS undergoing a 16-week video-based ToM training. ToM performance was assessed at baseline, post-intervention, and 3-month follow-up. Study 2 included 12 PwMS randomly assigned to receive ToM training with either active tDCS (dlPFC or vmPFC) or sham stimulation. tDCS was delivered twice weekly (2 mA, 20 minutes) over 16 weeks.
Results
In Study 1, participants showed improvements in cognitive ToM (verbal and nonverbal), and selective improvement in verbal affective ToM. In Study 2, both active tDCS groups exhibited improvements in cognitive and affective ToM compared to the sham group.
Conclusions
ToM training seems to be useful in improving cognitive and verbal affective ToM in PwMS, especially when combined with prefrontal tDCS. However, nonverbal affective ToM appears resistant to intervention, suggesting the need for targeted strategies. These preliminary findings support a personalized, multimodal approach to social cognitive rehabilitation in MS.
{"title":"Theory of mind in multiple sclerosis: Three-month follow-up effects after double-blind tDCS and video-training, a pilot study","authors":"Lidia Ammendola , Daniela Malangone , Maria Cropano , Mariachiara Gaita , Anna della Calce , Luigi Maffei , Nicola Moccaldi , Pasquale Arpaia , Giuseppe Romano , Luigi Trojano , Giacomo Lus , Gabriella Santangelo , Paolo De Blasiis , Elisabetta Signoriello , Simona Raimo","doi":"10.1016/j.msard.2026.106983","DOIUrl":"10.1016/j.msard.2026.106983","url":null,"abstract":"<div><h3>Objective</h3><div>Theory of Mind (ToM) deficits are common in people with Multiple Sclerosis (PwMS). This pilot study evaluated the feasibility of an ecologically valid ToM training in PwMS and examined whether experimental transcranial direct current stimulation (tDCS) intervention targeting the prefrontal cortex could enhance its effects on cognitive and affective ToM components across verbal and nonverbal modalities.</div></div><div><h3>Methods</h3><div>Two studies were conducted. Study 1 employed a single-case design with three PwMS undergoing a 16-week video-based ToM training. ToM performance was assessed at baseline, post-intervention, and 3-month follow-up. Study 2 included 12 PwMS randomly assigned to receive ToM training with either active tDCS (dlPFC or vmPFC) or sham stimulation. tDCS was delivered twice weekly (2 mA, 20 minutes) over 16 weeks.</div></div><div><h3>Results</h3><div>In Study 1, participants showed improvements in cognitive ToM (verbal and nonverbal), and selective improvement in verbal affective ToM. In Study 2, both active tDCS groups exhibited improvements in cognitive and affective ToM compared to the sham group.</div></div><div><h3>Conclusions</h3><div>ToM training seems to be useful in improving cognitive and verbal affective ToM in PwMS, especially when combined with prefrontal tDCS. However, nonverbal affective ToM appears resistant to intervention, suggesting the need for targeted strategies. These preliminary findings support a personalized, multimodal approach to social cognitive rehabilitation in MS.</div></div>","PeriodicalId":18958,"journal":{"name":"Multiple sclerosis and related disorders","volume":"107 ","pages":"Article 106983"},"PeriodicalIF":2.9,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cognitive impairment is a prevalent challenge in individuals with multiple sclerosis (MS). Cognitive reserve (CR), a multifaceted concept has been shown to have a protective role against cognitive decline. This study explores the association between cognitive reserve as measured by Cognitive Reserve Index questionnaire (CRIq), cognitive scores, and patients’ characteristics in MS patients. Additionally, we compared the predictive value of CR in cognitive function when measured by education alone versus the CRIq to examine the advantages of latter model.
Materials and methods
A total of 81 patients (39.22 ± 8.09 years old, 64 female) were recruited for the study and completed the interview. Cognitive function was evaluated with the “Brief International Cognitive Assessment for Multiple Sclerosis (BICAMS). CRIq and depression questionnaires were also obtained.
Results
CRIq score had significant correlation with all three age-adjusted cognitive test scores (rho = 0.551, 0.392, 0.418 for information processing speed, verbal memory and visuospatial memory respectively, p < 0.001 for all tests). The inclusion of CRIq significantly improved the cognitive function models, accounting for an additional 10.8% to 18.7% of the explained variance beyond age, and clinical predictors. In hierarchical regression models, education did not provide significant additional predictive value beyond CRIq scores across all three cognitive tests.
Conclusions
The CRIq provides a more comprehensive measure of CR than formal education alone, underscoring the multidimensional nature of cognitive enrichment in adults.
认知障碍是多发性硬化症(MS)患者普遍面临的挑战。认知储备(Cognitive reserve, CR)是一个多方面的概念,已被证明对认知衰退具有保护作用。本研究探讨认知储备指数问卷(cognitive reserve Index questionnaire, CRIq)、认知评分与MS患者特征之间的关系。此外,我们比较了仅通过教育和CRIq测量认知功能时CR的预测价值,以检验后者模型的优势。材料与方法共招募81例患者(39.22±8.09岁,女性64例)完成访谈。认知功能采用“国际多发性硬化症简短认知评估(BICAMS)”进行评估。同时获得CRIq和抑郁问卷。结果scriq评分与三项年龄调整后的认知测试得分均有显著相关(信息处理速度、言语记忆和视觉空间记忆的rho分别为0.551、0.392、0.418,p < 0.001)。CRIq的纳入显著改善了认知功能模型,在年龄和临床预测因子之外的解释方差中占10.8%至18.7%。在层次回归模型中,教育并没有提供显著的额外预测价值,除了在所有三个认知测试中的CRIq分数。CRIq提供了一种比单独的正规教育更全面的认知能力评估方法,强调了成人认知能力丰富的多维性。
{"title":"Cognitive reserve and its contribution to predicting cognitive performance in multiple sclerosis","authors":"Sadra Habibi Moini , Majid Hamidi , Ali Rezaei , Zahra Sarvestani , Zahra Azizan , Seyed Ehsan Mohammadianinejad , Mohammad Hossein Harirchian","doi":"10.1016/j.msard.2026.106985","DOIUrl":"10.1016/j.msard.2026.106985","url":null,"abstract":"<div><h3>Background</h3><div>Cognitive impairment is a prevalent challenge in individuals with multiple sclerosis (MS). Cognitive reserve (CR), a multifaceted concept has been shown to have a protective role against cognitive decline. This study explores the association between cognitive reserve as measured by Cognitive Reserve Index questionnaire (CRIq), cognitive scores, and patients’ characteristics in MS patients. Additionally, we compared the predictive value of CR in cognitive function when measured by education alone versus the CRIq to examine the advantages of latter model.</div></div><div><h3>Materials and methods</h3><div>A total of 81 patients (39.22 ± 8.09 years old, 64 female) were recruited for the study and completed the interview. Cognitive function was evaluated with the “Brief International Cognitive Assessment for Multiple Sclerosis (BICAMS). CRIq and depression questionnaires were also obtained.</div></div><div><h3>Results</h3><div>CRIq score had significant correlation with all three age-adjusted cognitive test scores (rho = 0.551, 0.392, 0.418 for information processing speed, verbal memory and visuospatial memory respectively, p < 0.001 for all tests). The inclusion of CRIq significantly improved the cognitive function models, accounting for an additional 10.8% to 18.7% of the explained variance beyond age, and clinical predictors. In hierarchical regression models, education did not provide significant additional predictive value beyond CRIq scores across all three cognitive tests.</div></div><div><h3>Conclusions</h3><div>The CRIq provides a more comprehensive measure of CR than formal education alone, underscoring the multidimensional nature of cognitive enrichment in adults.</div></div>","PeriodicalId":18958,"journal":{"name":"Multiple sclerosis and related disorders","volume":"107 ","pages":"Article 106985"},"PeriodicalIF":2.9,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.msard.2026.106982
Gary Rance , Julien Zanin , Daniel Merlo , Anneke van der Walt
Multiple sclerosis is an inflammatory autoimmune disease characterized by focal destruction of myelin within the central nervous system. Auditory deficits are a relatively frequent, but often underdiagnosed symptom. This study examined sound detection threshold and functional hearing ability in a cohort of patients with multiple sclerosis.
Thirty adults with relapsing-remitting multiple sclerosis and 30 age, gender and hearing-level matched controls underwent peripheral and central auditory assessments. These included audiometric (sound detection threshold) measurement, binaural speech perception, spatial hearing (Listening in Spatialized Noise test) and self-perceived hearing/communication disability rating (Speech, Spatial and Qualities of Hearing Questionnaire). Correlations with neurological disability, white matter lesion count, lesion volume and whole brain volume were evaluated.
Average sound detection levels for individuals with multiple sclerosis were abnormal in one or both ears for 18/30 participants and outside age-based population norms in 17/60 ears. Binaural speech perception was significantly poorer (P<.001) in listening conditions requiring localization of sound sources and participants rated their everyday hearing/communication ability lower than matched controls (P=.001). Importantly, peripheral hearing loss did not account for the observed speech deficits. Rather, poorer speech perception moderately correlated with greater disability and lower brain volume, and poorer binaural processing was strongly correlated with increased lesion and lower brain volumes.
The findings of this study are consistent with disruption of auditory neural activity occurring as a result of demyelination in the central pathways and global neurodegeneration. Clinicians should be aware that both peripheral- and central deficits severe enough to affect the quality of life of patients are common in multiple sclerosis.
{"title":"Binaural hearing, neurological disability and brain imaging in Multiple Sclerosis","authors":"Gary Rance , Julien Zanin , Daniel Merlo , Anneke van der Walt","doi":"10.1016/j.msard.2026.106982","DOIUrl":"10.1016/j.msard.2026.106982","url":null,"abstract":"<div><div>Multiple sclerosis is an inflammatory autoimmune disease characterized by focal destruction of myelin within the central nervous system. Auditory deficits are a relatively frequent, but often underdiagnosed symptom. This study examined sound detection threshold and functional hearing ability in a cohort of patients with multiple sclerosis.</div><div>Thirty adults with relapsing-remitting multiple sclerosis and 30 age, gender and hearing-level matched controls underwent peripheral and central auditory assessments. These included audiometric (sound detection threshold) measurement, binaural speech perception, spatial hearing (Listening in Spatialized Noise test) and self-perceived hearing/communication disability rating (Speech, Spatial and Qualities of Hearing Questionnaire). Correlations with neurological disability, white matter lesion count, lesion volume and whole brain volume were evaluated.</div><div>Average sound detection levels for individuals with multiple sclerosis were abnormal in one or both ears for 18/30 participants and outside age-based population norms in 17/60 ears. Binaural speech perception was significantly poorer (P<.001) in listening conditions requiring localization of sound sources and participants rated their everyday hearing/communication ability lower than matched controls (P=.001). Importantly, peripheral hearing loss did not account for the observed speech deficits. Rather, poorer speech perception moderately correlated with greater disability and lower brain volume, and poorer binaural processing was strongly correlated with increased lesion and lower brain volumes.</div><div>The findings of this study are consistent with disruption of auditory neural activity occurring as a result of demyelination in the central pathways and global neurodegeneration. Clinicians should be aware that both peripheral- and central deficits severe enough to affect the quality of life of patients are common in multiple sclerosis.</div></div>","PeriodicalId":18958,"journal":{"name":"Multiple sclerosis and related disorders","volume":"107 ","pages":"Article 106982"},"PeriodicalIF":2.9,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.msard.2026.106984
Jessica Podda , Federica Di Antonio , Ludovico Pedullà , Erica Grange , Mario Alberto Battaglia , Andrea Tacchino , Giampaolo Brichetto
Background
The Paced Auditory Serial Addition Test (PASAT) is widely used to assess cognitive functioning and fatigability in people with Multiple Sclerosis (PwMS). However, its poor acceptability and high refusal rates may limit its clinical interpretability, while potentially conveying meaningful information beyond test performance.
Objectives
To determine whether PASAT rejection at the first assessment represents a clinically meaningful marker of overall vulnerability in PwMS, reflected by a tendency toward worsening across demographic, disease-related and clinical domains, using both patient-reported and clinician-assessed outcomes.
Methods
One-way ANOVAs or non-parametric equivalents were run to compare different groups defined by baseline PASAT performance (missing, low, high) in terms of demographic, disease-related and clinical variables.
Results
Retrospective data from 1154 PwMS were analyzed. Participants with missing PASAT (N=224) were significantly older (60.1±13.5 years), had longer disease duration (18.9±12.2 years), higher EDSS (6.1±2.0), lower educational level (9.9±3.9 years), poorer cognitive performances on the Montreal Cognitive Assessment (MoCA) and Symbol Digit Modalities Test (SDMT) (respectively, 17.4±6.5, 22.5±13.6), and higher level of required assistance in daily functioning as measured by the Functional Independence Measure (FIM) (91.1±29.3), compared with both low and high PASAT groups (all ps < 0.05).
Conclusions
PASAT rejection at first assessment identifies a subgroup of older PwMS with higher disability, lower education, and more pronounced cognitive and functional impairments, suggesting that test refusal may serve as a clinically relevant marker of overall vulnerability in MS.
{"title":"Revealing the clinical significance of PASAT rejection in multiple sclerosis: Insights from patient-reported and clinician-assessed outcomes","authors":"Jessica Podda , Federica Di Antonio , Ludovico Pedullà , Erica Grange , Mario Alberto Battaglia , Andrea Tacchino , Giampaolo Brichetto","doi":"10.1016/j.msard.2026.106984","DOIUrl":"10.1016/j.msard.2026.106984","url":null,"abstract":"<div><h3>Background</h3><div>The Paced Auditory Serial Addition Test (PASAT) is widely used to assess cognitive functioning and fatigability in people with Multiple Sclerosis (PwMS). However, its poor acceptability and high refusal rates may limit its clinical interpretability, while potentially conveying meaningful information beyond test performance.</div></div><div><h3>Objectives</h3><div>To determine whether PASAT rejection at the first assessment represents a clinically meaningful marker of overall vulnerability in PwMS, reflected by a tendency toward worsening across demographic, disease-related and clinical domains, using both patient-reported and clinician-assessed outcomes.</div></div><div><h3>Methods</h3><div>One-way ANOVAs or non-parametric equivalents were run to compare different groups defined by baseline PASAT performance (missing, low, high) in terms of demographic, disease-related and clinical variables.</div></div><div><h3>Results</h3><div>Retrospective data from 1154 PwMS were analyzed. Participants with missing PASAT (N=224) were significantly older (60.1±13.5 years), had longer disease duration (18.9±12.2 years), higher EDSS (6.1±2.0), lower educational level (9.9±3.9 years), poorer cognitive performances on the Montreal Cognitive Assessment (MoCA) and Symbol Digit Modalities Test (SDMT) (respectively, 17.4±6.5, 22.5±13.6), and higher level of required assistance in daily functioning as measured by the Functional Independence Measure (FIM) (91.1±29.3), compared with both low and high PASAT groups (all ps < 0.05).</div></div><div><h3>Conclusions</h3><div>PASAT rejection at first assessment identifies a subgroup of older PwMS with higher disability, lower education, and more pronounced cognitive and functional impairments, suggesting that test refusal may serve as a clinically relevant marker of overall vulnerability in MS.</div></div>","PeriodicalId":18958,"journal":{"name":"Multiple sclerosis and related disorders","volume":"107 ","pages":"Article 106984"},"PeriodicalIF":2.9,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145966516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-06DOI: 10.1016/j.msard.2026.106981
István Mórocz , Mojtaba Jouzizadeh , Amir Hossein Ghaderi , Hamed Cheraghmakani , Seyed Mohammad Baghbanian , Reza Khanbabaie , Andrei Mogoutov
Background:
Any treatment of multiple sclerosis should preserve mental function, considering how cognitive deterioration interferes with quality of life. However, mental assessment is still realized with neuro-psychological tests without monitoring cognition on neurobiological grounds whereas the ongoing neural activity is readily observable and readable.
Objective:
The proposed method deciphers electrical brain states which as multi-dimensional cognetoms quantitatively discriminate normal from pathological patterns in an EEG.
Method:
Baseline recordings from a prior EEG study of 88 subjects, 36 with MS, were analyzed. Spectral bands served to compute cognetoms and categorize subsequent feature combination sets.
Result:
The brain states predictor correlates with disease burden and duration. Using cognetoms and spectral bands, a cross-sectional comparison separated patients from controls with a precision of 85% while using bands alone arrived at 79%.
Conclusion:
We demonstrate the efficiency of the quantitative data-driven method based on brain states analysis by contrasting EEG data of patients with MS and healthy subjects. The congruity with disease severity and duration is a neurophysiological indicator for disease accumulation over time. We discuss potential applications of the approach for the monitoring of disease time course and treatment efficacy in longitudinal clinical studies in psychiatry and neurology.
{"title":"Brain states analysis of EEG predicts multiple sclerosis and mirrors disease duration and burden","authors":"István Mórocz , Mojtaba Jouzizadeh , Amir Hossein Ghaderi , Hamed Cheraghmakani , Seyed Mohammad Baghbanian , Reza Khanbabaie , Andrei Mogoutov","doi":"10.1016/j.msard.2026.106981","DOIUrl":"10.1016/j.msard.2026.106981","url":null,"abstract":"<div><h3>Background:</h3><div>Any treatment of multiple sclerosis should preserve mental function, considering how cognitive deterioration interferes with quality of life. However, mental assessment is still realized with neuro-psychological tests without monitoring cognition on neurobiological grounds whereas the ongoing neural activity is readily observable and readable.</div></div><div><h3>Objective:</h3><div>The proposed method deciphers electrical brain states which as multi-dimensional cognetoms quantitatively discriminate normal from pathological patterns in an EEG.</div></div><div><h3>Method:</h3><div>Baseline recordings from a prior EEG study of 88 subjects, 36 with MS, were analyzed. Spectral bands served to compute cognetoms and categorize subsequent feature combination sets.</div></div><div><h3>Result:</h3><div>The brain states predictor correlates with disease burden and duration. Using cognetoms and spectral bands, a cross-sectional comparison separated patients from controls with a precision of 85% while using bands alone arrived at 79%.</div></div><div><h3>Conclusion:</h3><div>We demonstrate the efficiency of the quantitative data-driven method based on brain states analysis by contrasting EEG data of patients with MS and healthy subjects. The congruity with disease severity and duration is a neurophysiological indicator for disease accumulation over time. We discuss potential applications of the approach for the monitoring of disease time course and treatment efficacy in longitudinal clinical studies in psychiatry and neurology.</div></div>","PeriodicalId":18958,"journal":{"name":"Multiple sclerosis and related disorders","volume":"107 ","pages":"Article 106981"},"PeriodicalIF":2.9,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-06DOI: 10.1016/j.msard.2026.106976
Daniel Selchen , Rebecca Grant , Claire Magnussen , Jillian Murray , Calum S Neish
Background
In multiple sclerosis, disease-modifying therapies aim to reduce relapse rate and slow disease progression. An important component of successful disease control is treatment persistence, which is the time a patient remains on a therapy. The primary objective of this study was to examine persistence with ofatumumab in a real-world setting.
Methods
This was a retrospective cohort study using data from the Patient Support Program (clinicaltrials.gov number NCT06854341). Adults diagnosed with relapsing remitting multiple sclerosis who initiated ofatumumab were included. Persistence, defined as the number of days from ofatumumab initiation until discontinuation, was assessed from April 2021 to May 2024. Ofatumumab persistence was quantified by Kaplan-Meier estimates for discontinuation probabilities with corresponding 95% confidence intervals at 12, 24 and 36 months. Secondary objectives included a descriptive analysis of patients’ baseline demographic and clinical characteristics, and their association with discontinuation.
Results
The PSP included a total of 6377 patients, of which 5436 patients met the inclusion criteria and had information to assess discontinuation. Persistence probability with ofatumumab was 96.94% at 12-months, 95.02% at 24-months, and 92.26% at 36-months post index. During this period, 167 patients (3.1%) discontinued ofatumumab. The most common reasons for discontinuation included side effects (0.9%), trying to conceive/pregnancy (0.5%), and patient request (0.5%).
Conclusion
This study provides insights into real-world ofatumumab utilization among patients with multiple sclerosis and demonstrates that persistence with ofatumumab remained high over 3 years. These results complement data from controlled clinical trials and suggest that patients persist with ofatumumab.
{"title":"A real-world study on persistence with ofatumumab in Canadian patients with multiple sclerosis","authors":"Daniel Selchen , Rebecca Grant , Claire Magnussen , Jillian Murray , Calum S Neish","doi":"10.1016/j.msard.2026.106976","DOIUrl":"10.1016/j.msard.2026.106976","url":null,"abstract":"<div><h3>Background</h3><div>In multiple sclerosis, disease-modifying therapies aim to reduce relapse rate and slow disease progression. An important component of successful disease control is treatment persistence, which is the time a patient remains on a therapy. The primary objective of this study was to examine persistence with ofatumumab in a real-world setting.</div></div><div><h3>Methods</h3><div>This was a retrospective cohort study using data from the Patient Support Program (clinicaltrials.gov number NCT06854341). Adults diagnosed with relapsing remitting multiple sclerosis who initiated ofatumumab were included. Persistence, defined as the number of days from ofatumumab initiation until discontinuation, was assessed from April 2021 to May 2024. Ofatumumab persistence was quantified by Kaplan-Meier estimates for discontinuation probabilities with corresponding 95% confidence intervals at 12, 24 and 36 months. Secondary objectives included a descriptive analysis of patients’ baseline demographic and clinical characteristics, and their association with discontinuation.</div></div><div><h3>Results</h3><div>The PSP included a total of 6377 patients, of which 5436 patients met the inclusion criteria and had information to assess discontinuation. Persistence probability with ofatumumab was 96.94% at 12-months, 95.02% at 24-months, and 92.26% at 36-months post index. During this period, 167 patients (3.1%) discontinued ofatumumab. The most common reasons for discontinuation included side effects (0.9%), trying to conceive/pregnancy (0.5%), and patient request (0.5%).</div></div><div><h3>Conclusion</h3><div>This study provides insights into real-world ofatumumab utilization among patients with multiple sclerosis and demonstrates that persistence with ofatumumab remained high over 3 years. These results complement data from controlled clinical trials and suggest that patients persist with ofatumumab.</div></div>","PeriodicalId":18958,"journal":{"name":"Multiple sclerosis and related disorders","volume":"107 ","pages":"Article 106976"},"PeriodicalIF":2.9,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145966481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}