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Ocrelizumab alters the circulating metabolome in people with relapsing–remitting multiple sclerosis 奥克雷珠单抗会改变复发缓解型多发性硬化症患者的循环代谢组。
IF 4.4 2区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2024-08-26 DOI: 10.1002/acn3.52167
Fatemeh Siavoshi, Dimitrios C. Ladakis, Ashley Muller, Bardia Nourbakhsh, Pavan Bhargava

Background

Circulating metabolite levels are altered in multiple sclerosis (MS) and are associated with MS severity. However, how metabolic profiles shift following highly efficacious therapies, like ocrelizumab remains unclear.

Objective

Circulating metabolite levels are altered in multiple sclerosis (MS) and are associated with MS severity. However, how metabolic profiles shift following highly efficacious therapies, like ocrelizumab remains unclear. To assess changes in the circulating metabolome produced by ocrelizumab treatment in people with relapsing–remitting MS (RRMS).

Methods

Thirty-one individuals with RRMS eligible for beginning treatment with ocrelizumab were recruited and followed with demographic, clinical, quality-of-life, and global metabolomics data collected at each visit. Modules of highly correlated metabolites were identified using the weighted correlation network analysis approach. Changes in each module's eigenmetabolite values and individual metabolites during the study were evaluated using linear mixed-effects models.

Results

Patients with a mean age of 40.8 (SD = 10.30) years, and median disease duration of 4.0 (IQR = 8.5) years, were monitored for a median of 3.36 (IQR = 1.43) years. Two out of twelve identified sets of metabolites were altered significantly. The first module mainly contained androgenic and pregnenolone steroids (p-value <0.001, coefficient: −0.10). The second module primarily consisted of several lysophospholipids, arachidonic acid, some endocannabinoids, and monohydroxy fatty acid metabolites (p-value = 0.016, coefficient: −0.12), which its reduction was significantly associated with improvement based on overall disability response score (OR 3.09e-01, 95% CI: 6.83e-02, 9.09e-01, p-value = 3.15E-02).

Interpretation

In this longitudinal observational study, using a global untargeted metabolomics approach, we showed significant alteration in circulating metabolome in RRMS patients undergoing ocrelizumab treatment. In particular, we observed a significant reduction in metabolites involved in the lysophospholipid pathway, which was associated with patients' improvement.

背景:多发性硬化症(MS)患者的循环代谢物水平会发生改变,并与 MS 的严重程度有关。然而,奥克立珠单抗等高效疗法后代谢谱如何变化仍不清楚:多发性硬化症(MS)患者的循环代谢物水平会发生改变,并与MS的严重程度有关。然而,奥克立珠单抗等高效疗法后代谢谱如何变化仍不清楚。目的:评估复发性多发性硬化症(RRMS)患者接受奥克立珠单抗治疗后循环代谢组的变化:招募了31名有资格开始接受奥克立珠单抗治疗的RRMS患者,并对他们进行随访,每次随访都收集人口统计学、临床、生活质量和全球代谢组学数据。采用加权相关网络分析方法确定了高度相关的代谢物模块。使用线性混合效应模型评估了研究期间每个模块的代谢物特征值和单个代谢物的变化:患者的平均年龄为 40.8 (SD = 10.30)岁,中位病程为 4.0 (IQR = 8.5)年,接受监测的中位时间为 3.36 (IQR = 1.43)年。在已确定的十二组代谢物中,有两组发生了显著变化。第一个模块主要包含雄激素类固醇和孕烯醇酮类固醇(p 值 解释性说明:在这项纵向观察研究中,我们采用了一种全局非靶向代谢组学方法,结果显示接受奥克立珠单抗治疗的 RRMS 患者的循环代谢组发生了显著变化。特别是,我们观察到参与溶血磷脂通路的代谢物明显减少,这与患者病情的改善有关。
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引用次数: 0
Rituximab in secondary progressive multiple sclerosis: a meta-analysis 利妥昔单抗治疗继发性进展型多发性硬化症:一项荟萃分析。
IF 4.4 2区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2024-08-26 DOI: 10.1002/acn3.52186
Pasin Intarakhao, Taksaporn Laipasu, Jiraporn Jitprapaikulsan, Natnasak Apiraksattayakul, Punchika Kosiyakul, Sasitorn Siritho, Naraporn Prayoonwiwat, Tatchaporn Ongphichetmetha

Objective

To evaluate the efficacy of rituximab (RTX) in stabilizing disability progression in secondary progressive multiple sclerosis (SPMS).

Methods

A systematic review was conducted, encompassing studies from inception to April 2023, utilizing the MEDLINE and EMBASE databases. Inclusion criteria comprised studies with a minimum of 3 SPMS patients receiving intravenous RTX in at least one infusion, with a follow-up duration of at least 6 months. Primary outcome measures included changes in Expanded Disability Status Scale (EDSS) scores. Mean differences in pre- and post-RTX EDSS scores were analyzed using a random-effects model. Meta-regression examined age at RTX initiation, pre-RTX EDSS scores, disease duration, and outcome reported time as variables. Secondary outcomes assessed changes in the annualized relapse rate (ARR).

Results

Thirteen studies, involving 604 SPMS patients, met the inclusion criteria. Following a mean follow-up of 2 years, the mean difference in EDSS scores (ΔEDSS = EDSSpre-RTX − EDSSpost-RTX) was −0.21 (95% CI −0.51 to 0.08, p = 0.16), indicating no significant variation. Multivariable meta-regression identified significant associations between EDSS score mean difference and pre-RTX EDSS scores, disease duration at RTX initiation, and outcome reported time. However, age at RTX initiation showed no significant association. Pre- and post-RTX ARR data were available for 245 out of 604 SPMS patients across seven studies, revealing a mean difference in ARR (ΔARR = ARRpre-RTX − ARRpost-RTX) of 0.74 (95% CI 0.19–1.29, p = 0.008).

Interpretation

RTX demonstrates efficacy in reducing relapse frequency and exhibits potential in stabilizing disability progression over a 2-year follow-up, particularly among individuals with shorter disease duration.

目的评估利妥昔单抗(RTX)在稳定继发性进展性多发性硬化症(SPMS)残疾进展方面的疗效:方法:利用 MEDLINE 和 EMBASE 数据库对从开始到 2023 年 4 月的研究进行系统性回顾。纳入标准包括至少有3名SPMS患者接受过一次RTX静脉注射,随访时间至少6个月。主要结果指标包括扩展残疾状态量表(EDSS)评分的变化。采用随机效应模型分析了RTX前后EDSS评分的平均差异。元回归研究了RTX起始年龄、RTX前EDSS评分、病程和结果报告时间等变量。次要结果评估了年复发率(ARR)的变化:有13项研究符合纳入标准,涉及604名SPMS患者。平均随访2年后,EDSS评分的平均差异(ΔEDSS = EDSSpre-RTX - EDSSpost-RTX)为-0.21(95% CI -0.51至0.08,p = 0.16),表明无显著差异。多变量元回归发现,EDSS评分均值差异与RTX前EDSS评分、RTX开始时的病程以及结果报告时间之间存在显著关联。然而,开始使用 RTX 时的年龄与之无明显关联。在7项研究的604名SPMS患者中,有245名患者获得了RTX前和RTX后的ARR数据,显示ARR的平均差异(ΔARR = ARRpre-RTX - ARRpost-RTX)为0.74(95% CI 0.19-1.29,P = 0.008):RTX在降低复发频率方面表现出疗效,并在两年随访期间表现出稳定残疾进展的潜力,尤其是在病程较短的患者中。
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引用次数: 0
Sensitivity and specificity of the Salzburg EEG criteria for nonconvulsive status epilepticus 非惊厥性癫痫状态的萨尔茨堡脑电图标准的敏感性和特异性。
IF 4.4 2区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2024-08-26 DOI: 10.1002/acn3.52184
Line B. Ulvin, Kristian B. Nilsen, Erik Taubøll, Lars Etholm, Kjell Heuser

Objective

The Salzburg EEG criteria for nonconvulsive status epilepticus (NCSE) have been proposed as consensus criteria for NCSE. We aimed to perform an independent study of their diagnostic accuracy.

Methods

A prospective study was carried out at Oslo University Hospital, including all consecutive patients ≥15 years old who were referred for an EEG with an explicit or implicit question of NCSE from February 2020 to February 2022. Two independent EEG readers scored the included EEGs according to the Salzburg criteria and blinded to the clinical data. The reference standard was defined as the clinical diagnosis the patient received based on all available clinical and paraclinical data. Diagnostic accuracy in identifying “certain/possible NCSE” was assessed by calculating sensitivity, specificity, positive predictive value, and negative predictive value with their 95% confidence intervals.

Results

In total, 469 patients/EEGs were included in the study. The prevalence of NCSE according to the reference standard was 11% (n = 53). The criteria showed a sensitivity of 94% (95% CI: 92–96%), a specificity of 77% (95% CI: 73–81%), a positive predictive value of 34% (95% CI: 30–39%), and a negative predictive value of 99% (95% CI: 98–100%). False positives for “certain NCSE” (n = 16) included many serial seizures and stimulus-induced rhythmic and periodic discharges (SIRPIDs), as well as a focal cortical dysplasia. False positives for “possible NCSE” (n = 79) were mainly represented by different encephalopathies and postictality.

Interpretation

The low specificity of the Salzburg criteria calls for refinement before implementation into daily clinical practice.

目的:萨尔茨堡非惊厥性癫痫状态(NCSE)脑电图标准已被提出作为 NCSE 的共识标准。我们旨在对其诊断准确性进行独立研究:我们在奥斯陆大学医院开展了一项前瞻性研究,研究对象包括 2020 年 2 月至 2022 年 2 月期间所有转诊接受脑电图检查并明确或隐含 NCSE 问题的年龄≥15 岁的连续患者。两名独立的脑电图阅读者根据萨尔茨堡标准对纳入的脑电图进行评分,并对临床数据进行盲测。参考标准被定义为根据所有可用的临床和准临床数据对患者做出的临床诊断。通过计算灵敏度、特异性、阳性预测值和阴性预测值及其 95% 置信区间,评估识别 "确定/可能的 NCSE "的诊断准确性:研究共纳入了 469 名患者/EEG。根据参考标准,NCSE 的发病率为 11%(n = 53)。该标准的灵敏度为 94% (95% CI: 92-96%),特异度为 77% (95% CI: 73-81%),阳性预测值为 34% (95% CI: 30-39%),阴性预测值为 99% (95% CI: 98-100%)。某些 NCSE"(n = 16)的假阳性包括许多连续性癫痫发作和刺激诱发的节律性和周期性放电(SIRPID),以及局灶性皮质发育不良。可能的 NCSE "假阳性(n = 79)主要表现为不同的脑病和发作后症状:解释:萨尔茨堡标准的特异性较低,在应用于日常临床实践之前需要对其进行改进。
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引用次数: 0
B-cell depletion limits HTLV-1-infected T-cell expansion and ameliorate HTLV-1-associated myelopathy B 细胞耗竭可限制受 HTLV-1 感染的 T 细胞扩增,并改善 HTLV-1 相关骨髓病变。
IF 4.4 2区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2024-08-26 DOI: 10.1002/acn3.52190
Aowei Lv, Yaofeng Fang, Xiaohong Lin, Jiaying Chen, Huanhuan Song, Ning Wang, Wan-Jin Chen, Ying Fu, Rui Li, Yi Lin

Objective

Human T-cell leukemia virus type 1-associated myelopathy (HAM) is a chronic, progressive, inflammatory disease with unclear pathogenesis and no effective treatments. We aimed to investigate a novel mechanistic theory and treat HAM patients with rituximab, which can deplete CD20+ B lymphocytes in circulation.

Methods

Single-cell RNA sequencing (scRNA-seq) data was analyzed to identify HTLV-1-associated B cells and their effect on T cells. An observational analysis of our HAM cohort was conducted to elucidate changes in the immunological microenvironment of these patients. Peripheral blood mononuclear cells (PBMC) from HAM patients were isolated to explore the efficacy of B cell depletion in vitro. To assess the effect of B-cell depletion on HAM patients, eligible participants in our cohort received rituximab therapy (NCT04004819).

Results

ScRNA-seq results suggest a significant effect of HTLV-1-associated B cells on T cells. Additionally, HTLV-1 was found to infect B cells and depletion of B cells inhibited the proliferation of T cells. Number of B cells in HAM patients had positive correlation with the proviral load and infected cell counts. Depletion of B cells led to a reduction in HTLV-1 proviral load in vitro. Furthermore, in clinical trial, 14 HAM patients were enrolled. Three patients (21.4%) who received rituximab failed to achieve remission, compared to 24 (85.7%) patients received any other therapy that failed to achieve remission. With a low level of circulating B cells, the proportion of Ki67-positive cells in CD4+ T cells fell.

Interpretation

This study provided evidence that depleting B-lymphocytes is an innovative strategy for treating patients with HAM and broadens the understanding of the role of B cells in infectious immunity.

目的:人类 T 细胞白血病病毒 1 型相关骨髓病(HAM)是一种慢性、进行性、炎症性疾病,发病机制不明,也没有有效的治疗方法。我们旨在研究一种新的机理理论,并用利妥昔单抗治疗HAM患者,因为利妥昔单抗能消耗循环中的CD20+ B淋巴细胞:我们分析了单细胞 RNA 测序(scRNA-seq)数据,以确定与 HTLV-1 相关的 B 细胞及其对 T 细胞的影响。我们对 HAM 队列进行了观察分析,以阐明这些患者免疫微环境的变化。我们分离了 HAM 患者的外周血单核细胞 (PBMC),以探索体外 B 细胞耗竭的疗效。为了评估B细胞耗竭对HAM患者的影响,我们的队列中符合条件的参与者接受了利妥昔单抗治疗(NCT04004819):ScRNA-seq结果表明,HTLV-1相关B细胞对T细胞有显著影响。结果:ScRNA-seq 结果表明,HTLV-1 相关 B 细胞对 T 细胞有显著影响。此外,HTLV-1 还可感染 B 细胞,而 B 细胞的耗竭可抑制 T 细胞的增殖。HAM患者的B细胞数量与病毒载量和感染细胞数量呈正相关。消耗 B 细胞可减少体外 HTLV-1 病毒载量。此外,在临床试验中,有 14 名 HAM 患者参加。接受利妥昔单抗治疗的患者中有3人(21.4%)未能获得缓解,而接受其他疗法的患者中有24人(85.7%)未能获得缓解。由于循环B细胞水平较低,CD4+T细胞中Ki67阳性细胞的比例下降:这项研究提供了证据,证明消耗B淋巴细胞是治疗HAM患者的一种创新策略,并拓宽了人们对B细胞在感染性免疫中作用的认识。
{"title":"B-cell depletion limits HTLV-1-infected T-cell expansion and ameliorate HTLV-1-associated myelopathy","authors":"Aowei Lv,&nbsp;Yaofeng Fang,&nbsp;Xiaohong Lin,&nbsp;Jiaying Chen,&nbsp;Huanhuan Song,&nbsp;Ning Wang,&nbsp;Wan-Jin Chen,&nbsp;Ying Fu,&nbsp;Rui Li,&nbsp;Yi Lin","doi":"10.1002/acn3.52190","DOIUrl":"10.1002/acn3.52190","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>Human T-cell leukemia virus type 1-associated myelopathy (HAM) is a chronic, progressive, inflammatory disease with unclear pathogenesis and no effective treatments. We aimed to investigate a novel mechanistic theory and treat HAM patients with rituximab, which can deplete CD20<sup>+</sup> B lymphocytes in circulation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Single-cell RNA sequencing (scRNA-seq) data was analyzed to identify HTLV-1-associated B cells and their effect on T cells. An observational analysis of our HAM cohort was conducted to elucidate changes in the immunological microenvironment of these patients. Peripheral blood mononuclear cells (PBMC) from HAM patients were isolated to explore the efficacy of B cell depletion in vitro. To assess the effect of B-cell depletion on HAM patients, eligible participants in our cohort received rituximab therapy (NCT04004819).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>ScRNA-seq results suggest a significant effect of HTLV-1-associated B cells on T cells. Additionally, HTLV-1 was found to infect B cells and depletion of B cells inhibited the proliferation of T cells. Number of B cells in HAM patients had positive correlation with the proviral load and infected cell counts. Depletion of B cells led to a reduction in HTLV-1 proviral load in vitro. Furthermore, in clinical trial, 14 HAM patients were enrolled. Three patients (21.4%) who received rituximab failed to achieve remission, compared to 24 (85.7%) patients received any other therapy that failed to achieve remission. With a low level of circulating B cells, the proportion of Ki67-positive cells in CD4<sup>+</sup> T cells fell.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Interpretation</h3>\u0000 \u0000 <p>This study provided evidence that depleting B-lymphocytes is an innovative strategy for treating patients with HAM and broadens the understanding of the role of B cells in infectious immunity.</p>\u0000 </section>\u0000 </div>","PeriodicalId":126,"journal":{"name":"Annals of Clinical and Translational Neurology","volume":"11 10","pages":"2756-2768"},"PeriodicalIF":4.4,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/acn3.52190","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142054306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Machine learning models for outcome prediction in thrombectomy for large anterior vessel occlusion 用于大血管前端闭塞血栓切除术结果预测的机器学习模型。
IF 4.4 2区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2024-08-23 DOI: 10.1002/acn3.52185
Omid Shirvani, Stefanie Warnat-Herresthal, Ivan Savchuk, Felix J. Bode, Louisa Nitsch, Sebastian Stösser, Taraneh Ebrahimi, Niklas von Danwitz, Hannah Asperger, Julia Layer, Julius Meissner, Christian Thielscher, Franziska Dorn, Nils Lehnen, Joachim L. Schultze, Gabor C. Petzold, Johannes M. Weller, the GSR-ET Investigators

Objective

Predicting long-term functional outcomes shortly after a stroke is challenging, even for experienced neurologists. Therefore, we aimed to evaluate multiple machine learning models and the importance of clinical/radiological parameters to develop a model that balances minimal input data with reliable predictions of long-term functional independency.

Methods

Our study utilized data from the German Stroke Registry on patients with large anterior vessel occlusion who underwent endovascular treatment. We trained seven machine learning models using 30 parameters from the first day postadmission to predict a modified Ranking Scale of 0–2 at 90 days poststroke. Model performance was assessed using a 20-fold cross-validation and one-sided Wilcoxon rank-sum tests. Key features were identified through backward feature selection.

Results

We included 7485 individuals with a median age of 75 years and a median NIHSS score at admission of 14 in our analysis. Our Deep Neural Network model demonstrated the best performance among all models including data from 24 h postadmission. Backward feature selection identified the seven most important features to be NIHSS after 24 h, age, modified Ranking Scale after 24 h, premorbid modified Ranking Scale, intracranial hemorrhage within 24 h, intravenous thrombolysis, and NIHSS at admission. Narrowing the Deep Neural Network model's input data to these features preserved the high performance with an AUC of 0.9 (CI: 0.89–0.91).

Interpretation

Our Deep Neural Network model, trained on over 7000 patients, predicts 90-day functional independence using only seven clinical/radiological features from the first day postadmission, demonstrating both high accuracy and practicality for clinical implementation on stroke units.

目的:预测中风后不久的长期功能预后具有挑战性,即使是经验丰富的神经科医生也不例外。因此,我们旨在评估多种机器学习模型以及临床/放射学参数的重要性,以开发出一种模型,在最小输入数据与长期功能独立的可靠预测之间取得平衡:我们的研究利用了德国卒中登记处关于接受血管内治疗的前方大血管闭塞患者的数据。我们使用入院后第一天的 30 个参数训练了 7 个机器学习模型,以预测卒中后 90 天的修正排名量表 0-2。模型性能通过 20 倍交叉验证和单侧 Wilcoxon 秩和检验进行评估。通过反向特征选择确定了关键特征:我们在分析中纳入了 7485 名中位数年龄为 75 岁、入院时 NIHSS 评分中位数为 14 分的患者。在包括入院后 24 小时数据在内的所有模型中,我们的深度神经网络模型表现最佳。逆向特征选择确定了七个最重要的特征:24 小时后的 NIHSS、年龄、24 小时后的修正排名量表、入院前的修正排名量表、24 小时内的颅内出血、静脉溶栓和入院时的 NIHSS。将深度神经网络模型的输入数据缩小到这些特征后,其AUC为0.9(CI:0.89-0.91),保持了较高的性能:我们的深度神经网络模型是在 7000 多名患者身上训练出来的,只需使用入院后第一天的七个临床/放射学特征就能预测 90 天的功能独立性,证明了其高准确性和在卒中单元临床实施的实用性。
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引用次数: 0
Exploring postictal recovery with acetaminophen or nimodipine: A randomized-controlled crossover trial 探索对乙酰氨基酚或尼莫地平的发作后恢复:随机对照交叉试验。
IF 4.4 2区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2024-08-19 DOI: 10.1002/acn3.52143
Julia C. M. Pottkämper, Joey P. A. J. Verdijk, Sven Stuiver, Eva Aalbregt, Freek ten Doesschate, Esmée Verwijk, Martin Schmettow, Guido A. van Wingen, Michel J. A. M. van Putten, Jeannette Hofmeijer, Jeroen A. van Waarde

Objective

The postictal state is underrecognized in epilepsy. Animal models show improvement of postictal symptoms and cerebral perfusion with acetaminophen or nimodipine. We studied the effects of acetaminophen or nimodipine on postictal electroencephalographic (EEG) recovery, clinical reorientation, and hypoperfusion in patients with ECT-induced seizures.

Methods

In this prospective clinical trial with three-condition randomized crossover design, study interventions were administered orally 2 h before ECT sessions (1000 mg acetaminophen, 60 mg nimodipine, or a placebo condition). Primary outcome measure was the speed of postictal EEG recovery. Secondary outcomes were the extent of postictal EEG recovery, clinical reorientation time, and postictal cerebral blood flow as assessed by perfusion-weighted MRI. Bayesian generalized mixed-effects models were applied for analyses.

Results

We included 300 seizures, postictal EEGs, and reorientation time values, and 76 MRI perfusion measures from 33 patients (median age 53 years, 19 female). Pretreatment with acetaminophen or nimodipine was not associated with change in speed of EEG recovery compared to placebo (1.13 [95%CI 0.92, 1.40] and 1.07 [95%CI 0.87, 1.31], respectively), nor with the secondary outcomes. No patient reached full EEG recovery at 1 h post-seizure, despite clinical recovery in 89%. Longer seizures were associated with slower EEG recovery and lower postictal perfusion. Nimodipine altered regional perfusion in the posterior cortex.

Interpretation

Pretreatment with acetaminophen or nimodipine did not alleviate symptoms and signs of the postictal state. Systematic study of the postictal state after ECT-induced seizures is feasible.

目的:人们对癫痫发作后状态的认识不足。动物模型显示,对乙酰氨基酚或尼莫地平可改善发作后症状和脑灌注。我们研究了对乙酰氨基酚或尼莫地平对ECT诱发癫痫发作患者发作后脑电图(EEG)恢复、临床定向和低灌注的影响:在这项采用三条件随机交叉设计的前瞻性临床试验中,研究干预措施在 ECT 治疗前 2 小时口服(1000 毫克对乙酰氨基酚、60 毫克尼莫地平或安慰剂)。主要结果是发作后脑电图恢复的速度。次要结果是发作后脑电图的恢复程度、临床重新定向时间以及通过灌注加权核磁共振成像评估的发作后脑血流量。分析采用贝叶斯广义混合效应模型:我们纳入了来自 33 名患者(中位年龄 53 岁,19 名女性)的 300 次癫痫发作、发作后脑电图、重新定向时间值和 76 次 MRI 灌注测量值。与安慰剂相比,对乙酰氨基酚或尼莫地平的预处理与脑电图恢复速度的变化无关(分别为 1.13 [95%CI 0.92, 1.40] 和 1.07 [95%CI 0.87, 1.31]),也与次要结果无关。尽管89%的患者临床恢复,但没有患者在发作后1小时达到脑电图完全恢复。发作时间越长,脑电图恢复越慢,发作后灌注量也越低。尼莫地平改变了后部皮层的区域灌注:解释:对乙酰氨基酚或尼莫地平的预处理并不能减轻发作后状态的症状和体征。对ECT诱导癫痫发作后的发作后状态进行系统研究是可行的。
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引用次数: 0
Cobb syndrome effectively treated with trametinib 曲美替尼可有效治疗柯布综合征。
IF 4.4 2区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2024-08-17 DOI: 10.1002/acn3.52181
Yi Sun, Xitao Yang, Xindong Fan, Lixin Su, Ren Cai

Cobb syndrome is a rare neurocutaneous disease characterized by vascular anomalies involving the skin and spinal cord at the same metamere. The most common initial symptoms are neurological manifestations such as pain, monoparesis, headache, scoliosis, and motor damage. We present two patients with Cobb syndrome and severe disease burden harboring somatic mutations in KRAS. The two patients were subsequently treated with the MEK inhibitor trametinib, indicating the potential therapeutic benefit of this treatment for patients with life-threatening Cobb syndrome who are currently considered incurable.

柯布综合征是一种罕见的神经皮肤病,其特征是皮肤和脊髓在同一部位出现血管异常。最常见的初期症状是神经系统表现,如疼痛、单瘫、头痛、脊柱侧弯和运动损伤。我们介绍了两名患有柯布综合征和严重疾病负担并携带 KRAS 体细胞突变的患者。这两名患者随后接受了MEK抑制剂曲美替尼的治疗,这表明该疗法对目前被认为无法治愈的危及生命的柯布综合征患者具有潜在的治疗益处。
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引用次数: 0
Altered structural network in temporal lobe epilepsy with focal to bilateral tonic–clonic seizures 颞叶癫痫伴局灶至双侧强直阵挛发作的结构网络改变。
IF 4.4 2区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2024-08-16 DOI: 10.1002/acn3.52135
Yi Ge, Cong Chen, Hong Li, Ruyi Wang, Yuyu Yang, Lingqi Ye, Chenmin He, Ruotong Chen, Zijian Wang, Xiaotong Shao, Yuting Gong, Linglin Yang, Shan Wang, Jiping Zhou, Xunyi Wu, Shuang Wang, Yao Ding

Objectives

This study aims to investigate whether alterations in white matter topological networks are associated with focal to bilateral tonic–clonic seizures (FBTCS) in temporal lobe epilepsy (TLE). Additionally, we investigated the variables contributing to memory impairment in TLE.

Methods

This cross-sectional study included 88 unilateral people with TLE (45 left/43 right), and 42 healthy controls. Graph theory analysis was employed to compare the FBTCS (+) group (n = 51) with the FBTCS (−) group (n = 37). The FBTCS (+) group was subcategorized into current-FBTCS (n = 31) and remote-FBTCS (n = 20), based on the history of FBTCS within 1 year or longer than 1 year before scanning, respectively. We evaluated the discriminatory power of topological network properties by receiver operating characteristic (ROC) analysis. Generalized linear models (GLMs) were employed to investigate variables associated with memory impairment in TLE.

Results

Global efficiency (Eg) was significantly reduced in the FBTCS (+) group, especially in the current-FBTCS subgroup. Greater disruption of regional properties in the ipsilateral occipital and temporal association cortices was observed in the FBTCS (+) group. ROC analysis revealed that Eg, normalized characteristic shortest path length, and nodal efficiency of the ipsilateral middle temporal gyrus could distinguish between FBTCS (+) and FBTCS (−) groups. Additionally, GLMs linked the occurrence of current FBTCS with poorer verbal memory outcomes in TLE.

Interpretation

Our study suggests that abnormal networks could be the structural basis of seizure propagation in FBTCS. Strategies aimed at reducing the occurrence of FBTCS could potentially improve the memory outcomes in people with TLE.

研究目的本研究旨在探讨白质拓扑网络的改变是否与颞叶癫痫(TLE)的局灶至双侧强直阵挛发作(FBTCS)有关。此外,我们还调查了导致颞叶癫痫患者记忆障碍的变量:这项横断面研究包括88名单侧TLE患者(45名左侧/43名右侧)和42名健康对照者。采用图论分析法对FBTCS(+)组(n = 51)和FBTCS(-)组(n = 37)进行比较。根据扫描前 1 年内或超过 1 年的 FBTCS 病史,FBTCS(+)组又分为当前 FBTCS 组(n = 31)和远程 FBTCS 组(n = 20)。我们通过接收器操作特征(ROC)分析评估了拓扑网络特性的判别能力。我们采用了广义线性模型(GLM)来研究与TLE记忆损伤相关的变量:结果:FBTCS(+)组的全局效率(Eg)明显降低,尤其是在当前-FBTCS亚组中。在FBTCS(+)组中,同侧枕叶和颞叶联想皮层的区域特性受到了更大的破坏。ROC分析显示,同侧颞中回的Eg、归一化特征最短路径长度和结节效率可以区分FBTCS(+)组和FBTCS(-)组。此外,GLMs将当前FBTCS的发生与TLE患者较差的言语记忆结果联系起来:我们的研究表明,异常网络可能是 FBTCS 中癫痫发作传播的结构基础。旨在减少FBTCS发生的策略有可能改善TLE患者的记忆效果。
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引用次数: 0
Cerebral-Cerebellar Cortical Activity and Connectivity Underlying Sensory Trick in Cervical Dystonia 颈性肌张力障碍的大脑-小脑皮层活动和感觉伎俩的连接性
IF 4.4 2区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2024-08-16 DOI: 10.1002/acn3.52177
Nai-Qing Cai, Wu-Xiang Shi, Ru-Kai Chen, Bo-Li Chen, Yu-Rong Li, Ning Wang

Objective

The objective of this study was to investigate the activity and connectivity of cerebral and cerebellar cortices underlying the sensory trick (ST) effects in patients with cervical dystonia (CD), using electroencephalography (EEG).

Methods

We recruited 15 CD patients who exhibited clinically effective ST and 15 healthy controls (HCs) who mimicked the ST maneuver. EEG signals and multiple-channel electromyography (EMG) were recorded simultaneously during resting and acting stages. EEG source analysis and functional connectivity were performed. To account for the effects of sensory processing, we calculated relative power changes as the difference in power spectral density between resting and the maneuver execution.

Results

ST induced a decrease in low gamma (30–50 Hz) spectral power in the primary sensory and cerebellar cortices, which remained lower than in HCs during the maintenance period. Compared with HCs, patients exhibited consistently strengthened connectivity within the sensorimotor network during the maintenance period, particularly in the primary sensory-sensorimotor cerebellum connection.

Interpretation

The application of ST resulted in altered cortical excitability and functional connectivity regulated by gamma oscillation in CD patients, suggesting that this effect cannot be solely attributed to motor components. The cerebellum may play important roles in mediating the ST effects.

研究目的本研究的目的是利用脑电图(EEG)研究颈性肌张力障碍(CD)患者感觉伎俩(ST)效应所依赖的大脑和小脑皮层的活动和连接性:方法:我们招募了 15 名在临床上表现出有效 ST 的 CD 患者和 15 名模仿 ST 动作的健康对照组(HCs)。我们同时记录了静息和行动阶段的脑电信号和多通道肌电图(EMG)。进行了脑电图信号源分析和功能连接分析。为了考虑感觉处理的影响,我们将相对功率变化计算为静息和动作执行时功率谱密度的差异:结果:ST导致初级感觉皮层和小脑皮层的低伽马(30-50赫兹)频谱功率下降,在维持期仍低于普通人。与普通人相比,患者在维持期的感觉运动网络中表现出持续增强的连通性,尤其是在初级感觉-感觉运动小脑连接中:ST的应用导致CD患者大脑皮层兴奋性和由伽马振荡调节的功能连接发生改变,这表明这种效应不能完全归因于运动成分。小脑可能在介导 ST 效应方面发挥了重要作用。
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引用次数: 0
Retina as a potential biomarker for the early stage of Alzheimer's disease spectrum 视网膜作为阿尔茨海默氏症早期阶段的潜在生物标志物。
IF 4.4 2区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2024-08-09 DOI: 10.1002/acn3.52172
Rong Gao, Huan Luo, Su Yan, Li Ba, Sirui Peng, Bitao Bu, Xufang Sun, Min Zhang

Objective

To characterize the retinal microvasculature and structure in subjective cognitive decline (SCD) and identify the potential biomarker for the early stage of the Alzheimer's disease (AD) spectrum.

Methods

In this study, 35 patients with SCD, 36 with cognitive impairment, and 29 with normal cognition (NC) were enrolled. Optical coherence tomography angiography was employed to assess retinal vascular density, fovea avascular zone area, and retinal thickness. The parameters reflecting retinal perfusion and structure were compared among the three groups. In addition, the association between retinal parameters, cerebral blood flow (CBF), and peripheral blood biomarkers in the SCD stage was analyzed.

Results

The superficial vascular complex (SVC) vascular density in the macula and retinal nerve fiber layer thickness in the peripapillary were significantly reduced in individuals with SCD compared to NC. Furthermore, there was a positive correlation between macular ganglion cell complex thickness and CBF in SCD.

Interpretation

The retinal microvasculature and structure exhibit alterations in individuals with SCD. Macular ganglion cell complex thickness demonstrates correlations with cerebral perfusion. The retina holds potential as a novel biomarker for early detection of AD.

目的描述主观认知功能减退(SCD)患者视网膜微血管和结构的特征,并确定阿尔茨海默病(AD)早期的潜在生物标志物:本研究共纳入了 35 名 SCD 患者、36 名认知障碍患者和 29 名认知正常(NC)患者。采用光学相干断层血管造影术评估视网膜血管密度、眼窝无血管区面积和视网膜厚度。比较了三组患者的视网膜灌注和结构参数。此外,还分析了SCD阶段视网膜参数、脑血流(CBF)和外周血生物标志物之间的关联:结果:与NC相比,SCD患者黄斑部浅层血管复合体(SVC)血管密度和毛细血管周围视网膜神经纤维层厚度明显降低。此外,SCD 患者黄斑神经节细胞复合体厚度与 CBF 呈正相关:SCD患者的视网膜微血管和结构发生了改变。黄斑神经节细胞复合体厚度与脑灌注相关。视网膜具有作为早期检测 AD 的新型生物标记物的潜力。
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引用次数: 0
期刊
Annals of Clinical and Translational Neurology
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