Abstract:
Objective:The dominant model of cognitive impairment in focal epilepsy has emphasised structural bases for cognitive deficits. Current theories of cognition in the healthy brain emphasise the importance of the reweighting of brain network interactions in support of task performance. Here, we explore the hypothesis that cognitive deficits in epilepsy arise through abnormalities of dynamic functional network interactions. Method:We studied 19 healthy controls and 37 temporal lobe epilepsy (TLE) patients, using a behavioural measure of verbal fluency (the Controlled Oral Word Association Test) and an fMRI verbal fluency paradigm (Orthographic Lexical Retrieval). Results:Behaviourally, verbal fluency was significantly impaired in TLE. Psychophysiological interaction analyses of the fMRI data, which capture state-dependent changes in network connectivity, revealed reduced task-dependent modulations of connectivity from left superior medial frontal cortex to left middle frontal gyrus in TLE patients. Individual differences in verbal fluency among TLE cases was correlated with task-dependent changes in connectivity from left posterior cingulate to left superior medial frontal cortex, and from left superior medial frontal cortex to a range of right predominant brain areas. Interpretation:These data reveal that the typical pattern of task-driven shifts in network connectivity is not observed in TLE. Our observations go beyond simple structure-function associations and suggest that failure of network flexibility can be an important contributor to cognitive impairment in epilepsy.
journal_name
Ann Clin Transl Neuroljournal_title
Annals of clinical and translational neurologyauthors
Tailby C,Kowalczyk MA,Jackson GDdoi
10.1002/acn3.503subject
Has Abstractpub_date
2017-11-24 00:00:00pages
29-40issue
1issn
2328-9503pii
ACN3503journal_volume
5pub_type
杂志文章abstract:Objective:We present an exploratory study for identification of sex differences in imaging biomarkers that could further refine selection of patients for acute reperfusion therapy and trials based on sex and imaging targets. Methods:The Lesion Evolution in Stroke and Ischemia On Neuroimaging (LESION) study included co...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.733
更新日期:2019-02-21 00:00:00
abstract::Rho-associated kinase (ROCK) is an emerging target in acute ischemic stroke. Early pre-hospital treatment with ROCK inhibitors may improve their efficacy, but their antithrombotic effects raise safety concerns in hemorrhagic stroke, precluding use prior to neuroimaging. Therefore, we tested whether ROCK inhibition aff...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.569
更新日期:2018-05-01 00:00:00
abstract:OBJECTIVE:The early infantile epileptic encephalopathy type 13 (EIEE13, OMIM #614558) results from de novo missense mutations of SCN8A encoding the voltage-gated sodium channel Nav1.6. More than 20% of patients have recurrent mutations in residues Arg1617 or Arg1872. Our goal was to determine the functional effects of ...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.276
更新日期:2015-12-21 00:00:00
abstract:Objective:GDP-mannose pyrophosphorylase B (GMPPB) related phenotype spectrum ranges widely from congenital myasthenic syndrome (CMS), limb-girdle muscular dystrophy type 2T (LGMD 2T) to severe congenital muscle-eye-brain syndrome. Our study investigates the clinicopathologic features of a patient with novel GMPPB mutat...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.787
更新日期:2019-05-08 00:00:00
abstract:OBJECTIVE:To investigate the effects of leptin on different T-cell populations, in order to gain more insight into the link between leptin and obesity. METHODS:Three hundred and nine RRMS patients and 322 controls participated in a cross-sectional survey, to confirm whether excess weight/obesity in adolescence or earl...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51291
更新日期:2020-12-28 00:00:00
abstract:OBJECTIVE:Multiple sclerosis (MS) is an autoimmune demyelinating disorder, which is characterized by relapses and remissions. Serum neurofilament light chain (sNfL) is an emerging biomarker of disease activity but its clinical use is still limited. In this study, we aim to characterize the temporal association between ...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51060
更新日期:2020-06-01 00:00:00
abstract:OBJECTIVES:Isradipine is a dihydropyridine calcium channel inhibitor that has demonstrated concentration-dependent neuroprotective effects in animal models of Parkinson's disease (PD) but failed to show efficacy in a phase 3 clinical trial. The objectives of this study were to model the plasma pharmacokinetics of israd...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51300
更新日期:2021-01-18 00:00:00
abstract:OBJECTIVE:To evaluate the CSF levels of chitinase proteins during the presymptomatic and early symptomatic phases of amyotrophic lateral sclerosis (ALS). METHODS:CSF samples were obtained from 16 controls, 55 individuals at-risk for ALS (including 18 carrying a mutation in C9ORF72, 33 in SOD1), 12 ALS patients, and 7 ...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51114
更新日期:2020-08-01 00:00:00
abstract:OBJECTIVE:Friedreich ataxia (FRDA) is the commonest hereditary ataxia in Caucasians. Most patients are homozygous for expanded GAA triplet repeats in the first intron of the frataxin (FXN) gene, involved in mitochondrial iron metabolism. Here, we used magnetoencephalography (MEG) to characterize the main determinants o...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.50966
更新日期:2020-01-01 00:00:00
abstract:OBJECTIVE:Little is known about the long-term outcome of patients with disorders of consciousness (DOCs) such as unresponsive wakefulness syndrome (UWS) or minimally conscious state (MCS). We describe the disease course of a large group of DOC patients 2-14 years after brain damage. METHODS:In 102 patients (59 UWS, 43...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.63
更新日期:2014-06-01 00:00:00
abstract:OBJECTIVE:Pathogenesis in facioscapulohumeral muscular dystrophy (FSHD) appears to be due to aberrant expression, particularly in skeletal muscle nuclei, of the full-length isoform of DUX4 (DUX4-FL). Expression of DUX4-FL is known to alter gene expression and to be cytotoxic, but cell responses to DUX4-FL are not fully...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.158
更新日期:2015-02-01 00:00:00
abstract:OBJECTIVE:Gaucher disease (GD) is a lysosomal storage disease characterized by a deficiency of glucocerebrosidase. Although enzyme-replacement and substrate-reduction therapies are available, their efficacies in treating the neurological manifestations of GD are negligible. Pharmacological chaperone therapy is hypothes...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.292
更新日期:2016-02-02 00:00:00
abstract::Radiation necrosis mostly occurs in and near the radiation field. We used magnetic resonance imaging to study radiation-induced necrosis of atypical onset, severity, and extent following stereotactic radiosurgery for a symptomatic arteriovenous malformation. Susceptibility-sensitive imaging, T1-relaxation, myelin wate...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.704
更新日期:2018-12-10 00:00:00
abstract:OBJECTIVES:The distribution of pathology in neurodegenerative disease can be predicted by the organizational characteristics of white matter in healthy brains. However, we have very little evidence for the impact these pathological changes have on brain function. Understanding any such link between structure and functi...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.384
更新日期:2017-01-16 00:00:00
abstract::Biallelic mutations in the sorbitol dehydrogenase (SORD) encoding gene were recently identified as a common genetic cause in autosomal-recessive CMT patients. Here, we investigated the clinical, genetic, and electrophysiological characteristics of three CMT patients with biallelic SORD mutations from a Chinese cohort....
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51268
更新日期:2021-01-01 00:00:00
abstract::Mutations in MYH7 cause autosomal dominant Laing distal myopathy. We present a family with a previously reported deletion (c.5186_5188delAGA, p.K1729del). Muscle pathology in one family member was characterized by an inflammatory myopathy with rimmed vacuoles, increased MHC Class I expression, and perivascular and end...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.140
更新日期:2014-12-01 00:00:00
abstract:Objective:FOXG1 syndrome is a rare neurodevelopmental disorder associated with heterozygous FOXG1 variants or chromosomal microaberrations in 14q12. The study aimed at assessing the scope of structural cerebral anomalies revealed by neuroimaging to delineate the genotype and neuroimaging phenotype associations. Method...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.735
更新日期:2019-03-03 00:00:00
abstract:OBJECTIVE:Trinucleotide GGC repeat expansion in the 5'UTR of the NOTCH2NLC gene has been recognized as the pathogenesis of neuronal intranuclear inclusion disease (NIID). Previous studies have described that some NIID patients showed clinical and pathological similarities with multiple system atrophy (MSA). This study ...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51021
更新日期:2020-04-01 00:00:00
abstract:OBJECTIVE:Multiple sclerosis (MS) is a disease of the central nervous system with marked heterogeneity in several aspects including pathological processes. Based on infiltrating immune cells, deposition of humoral factors and loss of oligodendrocytes and/or myelin proteins, four lesion patterns have been described. Pat...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.218
更新日期:2015-09-01 00:00:00
abstract:OBJECTIVE:Serum neurofilament light (sNfL) is a promising new biomarker in multiple sclerosis (MS). We explored the relationship between sNfL and health outcomes and resource use in MS patients. METHODS:MS patients with serum samples and health-outcome measurements collected longitudinally between 2011 and 2016 were a...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51305
更新日期:2021-01-25 00:00:00
abstract:Objective:We aimed to evaluate the impact of underlying mechanism of basilar artery (BA) occlusion on the outcomes after endovascular therapy (EVT) for reperfusion and the outcome factors associated with each mechanism, and to identify radiologic parameters enabling to distinguish the underlying mechanism. Methods:Fro...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.536
更新日期:2018-01-30 00:00:00
abstract:Objective:The objective of this study was to evaluate prespecified and post hoc analyses in RENEW subgroups to identify participants more likely to benefit from opicinumab. Methods:RENEW assessed the efficacy/safety of opicinumab versus placebo in participants with a first unilateral acute optic neuritis (AON) episode...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.620
更新日期:2018-08-15 00:00:00
abstract::The causal role of midline thalamus in the initiation and early organization of mesial temporal lobe seizures is studied. Three patients undergoing stereoelectroencephalography were enrolled for the placement of an additional depth electrode targeting the midline thalamus. The midline thalamus was recruited in all thr...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.50835
更新日期:2019-08-01 00:00:00
abstract::Refractory epilepsy and encephalopathy are frequently encountered in patients with inborn errors of metabolism. We report a case of an 8-year-old girl with history of developmental delay, autism and intractable epilepsy that was found to have a pathogenic variant in CAD. We briefly review the biochemical pathway of CA...
journal_title:Annals of clinical and translational neurology
pub_type:
doi:10.1002/acn3.51257
更新日期:2021-01-01 00:00:00
abstract:Objective:Determining the sequence in which Huntington's disease biomarkers become abnormal can provide important insights into the disease progression and a quantitative tool for patient stratification. Here, we construct and present a uniquely fine-grained model of temporal progression of Huntington's disease from pr...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.558
更新日期:2018-04-02 00:00:00
abstract:OBJECTIVE:Cancer patients may experience neurologic adverse effects, such as alterations in neurocognitive function, as a consequence of chemotherapy. The mechanisms underlying such neurotoxic syndromes remain poorly understood. We here describe the temporal and regional effects of systemically administered platinum-ba...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.121
更新日期:2014-10-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate if urinary sediment cells offered a robust alternative to muscle biopsy for the diagnosis of single mtDNA deletions. METHODS:Eleven adult patients with progressive external ophthalmoplegia and a known single mtDNA deletion were investigated. Urinary sediment cells were u...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51119
更新日期:2020-08-01 00:00:00
abstract:OBJECTIVES:To assess the impact of ventriculoperitoneal (VPS) in patients with glioma. METHODS:Retrospective review of patients with grade II-IV glioma who had VPS placement from January 1995 to November 2012. RESULTS:We identified 62 patients. At time of VPS, 41 had gait disturbance, 40 cognitive impairment and 16 u...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.17
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVE:Given their diverse phenotypes, mitochondrial diseases (MDs) are often difficult to diagnose. Fibroblast growth factor 21 (FGF-21) and growth differentiation factor 15 (GDF-15) represent promising biomarkers for MD diagnosis. Herein we conducted a meta-analysis to compare their diagnostic accuracy for MDs. M...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51104
更新日期:2020-07-01 00:00:00
abstract:Objective:There is no consensus on the treatment of progressive multifocal leukoencephalopathy (PML) occurring in multiple sclerosis (MS) patients treated with natalizumab (Nz). We report novel immune activating treatment with filgrastim of Nz-associated PML in MS patients treated at Rush University Medical Center. Me...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.776
更新日期:2019-04-08 00:00:00