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 of FRDA-related changes in intrinsic functional brain architecture. METHODS:Five minutes of MEG signals were recorded at rest from 18 right-handed FRDA patients (mean age 27 years, 9 females; mean SARA score: 21.4) and matched healthy individuals. The MEG connectome was estimated as resting-state functional connectivity (rsFC) matrices involving 37 nodes from six major resting state networks and the cerebellum. Source-level rsFC maps were computed using leakage-corrected broad-band (3-40 Hz) envelope correlations. Post hoc median-split was used to contrast rsFC in FRDA patients with different clinical characteristics. Nonparametric permutations and Spearman rank correlation test were used for statistics. RESULTS:High rank correlation levels were found between rsFC and age of symptoms onset in FRDA mostly between the ventral attention, the default-mode, and the cerebellar networks; patients with higher rsFC developing symptoms at an older age. Increased rsFC was found in FRDA with later age of symptoms onset compared to healthy subjects. No correlations were found between rsFC and other clinical parameters. CONCLUSION:Age of symptoms onset is a major determinant of FRDA patients' intrinsic functional brain architecture. Higher rsFC in FRDA patients with later age of symptoms onset supports compensatory mechanisms for FRDA-related neural network dysfunction and position neuromagnetic rsFC as potential marker of FRDA neural reserve.
journal_name
Ann Clin Transl Neuroljournal_title
Annals of clinical and translational neurologyauthors
Naeije G,Wens V,Coquelet N,Sjøgård M,Goldman S,Pandolfo M,De Tiège XPdoi
10.1002/acn3.50966subject
Has Abstractpub_date
2020-01-01 00:00:00pages
94-104issue
1issn
2328-9503journal_volume
7pub_type
杂志文章abstract:Objective:The prognostic value of cerebrospinal fluid neurofilament light chain, total tau, phosphorylated tau181, and amyloid beta1-42 was examined in frontotemporal dementia subtypes. Methods:We compared baseline biomarkers between 49 controls, 40 patients with behavioral variant frontotemporal dementia, 24 with sem...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.643
更新日期:2018-09-20 00:00:00
abstract:OBJECTIVE:To examine how urate concentrations are related to the risk of having possible REM sleep behavior disorder (pRBD) in a community-based cohort. METHODS:The study included 12,923 Chinese adults of the Kailuan Study, free of Parkinson disease (PD) and dementia. Plasma urate concentrations were measured in 2006,...
journal_title:Annals of clinical and translational neurology
pub_type: 临床试验,杂志文章
doi:10.1002/acn3.50929
更新日期:2019-12-01 00:00:00
abstract:OBJECTIVE:To examine whether apolipoprotein B (ApoB), apolipoprotein A-1 (ApoA1), or their ratio (ApoB/A1) were associated with early changes in cerebrospinal fluid (CSF) biomarkers of Alzheimer's disease (AD) pathology in elderly adults with subjective cognitive decline (SCD). METHODS:This study included 507 objectiv...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51153
更新日期:2020-10-01 00:00:00
abstract::Mutations in RNF216 have been found to be associated with autosomal recessive Huntington-like disorder. Here, we describe a patient with Huntington-like disorder caused by a novel de novo RNF216 mutation. The patient started to have choreatic movements of both hands, slowly progressing to head, face, and four extremit...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51047
更新日期:2020-05-01 00:00:00
abstract::Three relatives carrying a t(4;8)(p15.2;p23.2) translocation had juvenile myoclonic epilepsy, self-limited photosensitive occipital epilepsy and migraine with aura. The t(4;8) translocation interrupted the coding sequence of CSMD1 gene and occurred immediately to the 3'UTR of STIM2 gene. STIM2 was overexpressed in the...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51040
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVE:Few studies have captured the neuropsychological profile of sporadic Creutzfeldt-Jakob disease (sCJD) with neuropsychological testing, and little is known about cognitive predictors of survival. We characterized baseline neuropsychological performance in sCJD and investigated associations with survival. METH...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51115
更新日期:2020-09-01 00:00:00
abstract:OBJECTIVE:To evaluate the effectiveness of levodopa-carbidopa intestinal gel (LCIG) as an add-on rescue therapy following deep brain stimulation (DBS) for treatment of motor fluctuations. BACKGROUND:Both DBS and LCIG are FDA-approved therapies for treatment of motor fluctuations in advanced PD. Few studies have examin...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.50889
更新日期:2019-10-01 00:00:00
abstract:OBJECTIVE:The neuropathogenesis of postoperative delirium remains unknown. Low cerebrospinal fluid (CSF) βamyloid protein (Aβ) and high CSF Tau levels are associated with Alzheimer's disease. We therefore assessed whether lower preoperative CSF Aβ/Tau ratio was associated with higher incidence and greater severity of p...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.58
更新日期:2014-05-01 00:00:00
abstract:OBJECTIVE:To study the safety of antiepileptic drug (AED) withdrawal after temporal lobe epilepsy (TLE) surgery. METHODS:We reviewed patients who underwent TLE surgery from 1995 to 2011, collecting data on doses, dates of AED initiation, reduction, and discontinuation. Predictors of seizure outcome were defined using ...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.35
更新日期:2014-02-01 00:00:00
abstract:OBJECTIVE:The mechanism of action of anti-B cell therapy in multiple sclerosis (MS) is not fully understood. Here, we compared the effect of anti-CD20 therapy on microglial activation in two distinct focal rat models of MS. METHODS:The effect of anti-CD20 therapy on lesion formation and extralesional microglial activa...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.94
更新日期:2014-09-01 00:00:00
abstract:INTRODUCTION:Multiple sclerosis (MS) is an enigmatic autoimmune-driven inflammatory/demyelinating disease of the human central nervous system (CNS), affecting brain, spinal cord, and optic nerves. The cause of the disease is not known and the number of effective treatments is limited. Despite some clear successes, tran...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章,评审
doi:10.1002/acn3.194
更新日期:2015-05-01 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::The precise genetic cause remains elusive in nearly 50% of patients with presumed neurogenetic disease, representing a significant barrier for clinical care. This is despite significant advances in clinical genetic diagnostics, including the application of whole-exome sequencing and next-generation sequencing-based ge...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.267
更新日期:2015-12-08 00:00:00
abstract:OBJECTIVE:Brain connectivity at rest is altered in temporal lobe epilepsy (TLE), particularly in "hub" areas such as the posterior default mode network (DMN). Although both functional and anatomical connectivity are disturbed in TLE, the relationships between measures as well as to seizure frequency remain unclear. We ...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.173
更新日期:2015-04-01 00:00:00
abstract:OBJECTIVE:Heterozygous SHANK3 mutations or partial deletions of the long arm of chromosome 22, also known as Phelan-McDermid syndrome, result in a syndromic form of the autism spectrum as well as in global developmental delay, intellectual disability, and several neuropsychiatric comorbidities. The exact pathophysiolog...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.50959
更新日期:2020-01-01 00:00:00
abstract::The maintenance of mitochondrial DNA (mtDNA) relies on proteins encoded by nuclear genes. Mutations in their coding sequences result in heterogenous clinical presentations featuring mtDNA instability in affected tissues. DNA2 is a multi-catalytic protein involved in the removal of single strand DNA during mtDNA replic...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.50888
更新日期:2019-09-01 00:00:00
abstract:OBJECTIVE:Epilepsy is a common neurological disorder that affects 1% of the population. Approximately, 30% of individuals with epilepsy are refractory to treatment, highlighting the need for novel therapies. Conventional anticonvulsant screening relies predominantly on induced seizure models. However, these models may ...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.413
更新日期:2017-04-26 00:00:00
abstract:OBJECTIVE:To assess the predictive potential of the complete response pattern from the University of Pennsylvania Smell Identification Test for the diagnosis of Parkinson's disease. METHODS:We analyzed a large dataset from the Arizona Study of Aging and Neurodegenerative Disorders, a longitudinal clinicopathological s...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.447
更新日期:2017-09-08 00:00:00
abstract:OBJECTIVE:Analysis of the T-cell receptor (TCR) repertoire in the cerebrospinal fluid (CSF) of patients with multiple sclerosis (MS) can reveal antigen-specific immune responses potentially implicated in the disease process. We applied a new unbiased deep-sequencing method for TCR repertoire analysis to accurately meas...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.310
更新日期:2016-04-20 00:00:00
abstract:OBJECTIVE:To develop, test, and iterate a comprehensive neuromuscular targeted gene panel in a national referral center. METHODS:We designed two iterations of a comprehensive targeted gene panel for neuromuscular disorders. Version 1 included 336 genes, which was increased to 464 genes in Version 2. Both panels used T...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51002
更新日期:2020-03-01 00:00:00
abstract:Objective:Clinical assessment of auditory attention in patients with disorders of consciousness is often limited by motor impairment. Here, we employ intersubject correlations among electroencephalography responses to naturalistic speech in order to assay auditory attention among patients and healthy controls. Methods...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.470
更新日期:2017-09-27 00:00:00
abstract:OBJECTIVE:Oxidative stress in the brain is highly prevalent in many neurodegenerative disorders including lysosomal storage disorders, in which neurodegeneration is a devastating manifestation. Despite intense studies, a precise mechanism linking oxidative stress to neuropathology in specific neurodegenerative diseases...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.261
更新日期:2015-11-06 00:00:00
abstract:OBJECTIVE:Brain involvement is a serious complication of HIV infection. The earliest changes in the brain, which represents an anatomic site for viral persistence, are largely unknown. METHODS:This investigation used quantitative Magnetic Resonance methodologies, including high resolution and diffusion tensor (DTI) im...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.136
更新日期:2015-01-01 00:00:00
abstract::Inclusion Body Myositis (IBM) is a relatively common acquired inflammatory myopathy in patients above 50 years of age. Pathological hallmarks of IBM are intramyofiber protein inclusions and endomysial inflammation, indicating that both myodegenerative and inflammatory mechanisms contribute to its pathogenesis. Impaire...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章,评审
doi:10.1002/acn3.419
更新日期:2017-05-16 00:00:00
abstract::Spinocerebellar ataxia type 2 (SCA2) is among the most common forms of autosomal dominant ataxias, accounting for 15% of the total families. Occurrence is higher in specific populations such as the Cuban and Southern Italian. The disease is caused by a CAG expansion in ATXN2 gene, leading to abnormal accumulation of t...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章,评审
doi:10.1002/acn3.437
更新日期:2017-08-10 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: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::FBXO7 is implicated in the ubiquitin-proteasome system and parkin-mediated mitophagy. FBXO7defects cause a levodopa-responsive parkinsonian-pyramidal syndrome(PPS). METHODS:We investigated the disease molecular bases in a child with PPS and brain iron accumulation. RESULTS:A novel homozygous c.368C>G (p.S123*) FBXO7...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.51095
更新日期:2020-08-01 00:00:00
abstract::Many observations suggest that mutations of mitochondrial DNA (mtDNA) could be responsible for the neurodegenerative changes of Alzheimer's disease (AD). Here we examined the signal intensity of the four alleles of each mtDNA nucleotide position (np) in whole blood of AD patients and age-matched controls using MitoChi...
journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
doi:10.1002/acn3.42
更新日期:2014-04-01 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