Abstract:
OBJECTIVE:To determine the associations between amyloid-PET, tau-PET, and atrophy with the behavioral/dysexecutive presentation of Alzheimer disease (AD), how these differ from amnestic AD, and how they correlate to clinical symptoms. METHODS:We assessed 15 patients with behavioral/dysexecutive AD recruited from a tertiary care memory clinic, all of whom had biologically defined AD. They were compared with 25 patients with disease severity- and age-matched amnestic AD and a group of 131 cognitively unimpaired (CU) elderly individuals. All participants were evaluated with amyloid-PET with [18F]AZD4694, tau-PET with [18F]MK6240, MRI, and neuropsychological testing. RESULTS:Voxelwise contrasts identified patterns of frontal cortical tau aggregation in behavioral/dysexecutive AD, with peaks in medial prefrontal, anterior cingulate, and frontal insular cortices in contrast to amnestic AD. No differences were observed in the distribution of amyloid-PET or atrophy as determined by voxel-based morphometry. Voxelwise area under the receiver operating characteristic curve analyses revealed that tau-PET uptake in the medial prefrontal, anterior cingulate, and frontal insular cortices were best able to differentiate between behavioral/dysexecutive and amnestic AD (area under the curve 0.87). Voxelwise regressions demonstrated relationships between frontal cortical tau load and degree of executive dysfunction. CONCLUSIONS:Our results provide evidence of frontal cortical involvement of tau pathology in behavioral/dysexecutive AD and highlight the need for consensus clinical criteria in this syndrome.
journal_name
Neurologyjournal_title
Neurologyauthors
Therriault J,Pascoal TA,Savard M,Benedet AL,Chamoun M,Tissot C,Lussier F,Kang MS,Thomas E,Terada T,Rej S,Massarweh G,Nasreddine Z,Vitali P,Soucy JP,Saha-Chaudhuri P,Gauthier S,Rosa-Neto Pdoi
10.1212/WNL.0000000000011081subject
Has Abstractpub_date
2021-01-05 00:00:00pages
e81-e92issue
1eissn
0028-3878issn
1526-632Xpii
WNL.0000000000011081journal_volume
96pub_type
杂志文章相关文献
NEUROLOGY文献大全abstract:OBJECTIVE:To determine the diagnostic accuracy of confrontation visual field testing and to compare the accuracy of confrontation tests both individually and in combination. METHODS:Patients were prospectively recruited from ophthalmology clinics over a 6-month period. All patients underwent SITA-standard 24-2 Humphre...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/WNL.0b013e3181d90017
更新日期:2010-04-13 00:00:00
abstract:BACKGROUND:Inherited and de novo mutations in sodium channel genes underlie a variety of channelopathies. Mutations in SCN2A, encoding the brain sodium channel Na(V)1.2, have previously been reported to be associated with benign familial neonatal infantile seizures, febrile seizures plus, and intractable epilepsy of in...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/WNL.0b013e3181f8812e
更新日期:2010-10-19 00:00:00
abstract:OBJECTIVE:To test the hypothesis that concussion-related brain alterations seen at symptomatic injury and medical clearance to return to play (RTP) will have dissipated by 1 year after RTP. METHODS:For this observational study, 24 athletes with concussion were scanned longitudinally within 1 week after injury, at RTP,...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/WNL.0000000000008523
更新日期:2019-11-19 00:00:00
abstract::The predictive value of CSF oligoclonal banding for the development of clinically definite MS (CDMS) within 5 years after optic neuritis was assessed in 76 patients enrolled in the Optic Neuritis Treatment Trial. The presence of oligoclonal bands was associated with the development of CDMS (p = 0.02). However, the res...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.51.3.885
更新日期:1998-09-01 00:00:00
abstract::Four patients with disabling action tremor in the setting of MS were treated with isoniazid (800 to 1200 mg per day). All patients showed significant improvement of the tremor, allowing more functional use of their extremities. To the best of our knowledge, this is the only medical treatment for this type of tremor. ...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.32.8.912
更新日期:1982-08-01 00:00:00
abstract::Early, intravenous administration of hematin in a patient with acute intermittent porphyria and severe quadriparesis may have produced partial but remarkable improvement of neuropathy, and resulted in simultaneous decline of porphyrin precursors in the blood. Intermittent, biweekly hematin infusions given 1 month afte...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.27.11.1053
更新日期:1977-11-01 00:00:00
abstract::A 12-year-old girl who had zoster ophthalmicus 10 months earlier presented with hemiparesis and corresponding basal ganglionic infarction related to middle cerebral artery branch thrombosis ipsilateral to the zoster. Hematologic evaluation disclosed protein C deficiency. This represents the first zoster-associated str...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.53.5.1128
更新日期:1999-09-22 00:00:00
abstract:OBJECTIVE:To study the attributes of quantitative strength testing using hand-held dynamometry (HHD) as an efficacy measure in 2 large phase 3 amyotrophic lateral sclerosis (ALS) trials. METHODS:In the phase 3 trials of ceftriaxone and dexpramipexole, 513 and 943 patients, respectively, were enrolled in double-blind, ...
journal_title:Neurology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1212/WNL.0000000000002941
更新日期:2016-08-09 00:00:00
abstract::In a series of 44 consecutive patients with Charcot-Marie-Tooth disease (CMT), we found restless legs syndrome (RLS) in 10 of 27 CMT type 2 (CMT2) patients (37%) and in none of 17 CMT type 1 patients (p = 0.004). In the CMT2 patients, RLS was associated with positive sensory symptoms (10/10 versus 10/17; p = 0.026). T...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.52.5.1064
更新日期:1999-03-23 00:00:00
abstract:OBJECTIVE:We determined whether Gram-negative bacterial molecules are associated with Alzheimer disease (AD) neuropathology given that previous studies demonstrate Gram-negative Escherichia coli bacteria can form extracellular amyloid and Gram-negative bacteria have been reported as the predominant bacteria found in no...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/WNL.0000000000003391
更新日期:2016-11-29 00:00:00
abstract::IgM anti-GM1 antibodies occur with increased frequency in the serum of patients with multifocal motor neuropathy (MMN). We tested the ability of serum IgM from patients with MMN to bind to GM1 ganglioside covalently bound to secondary amino groups on ELISA plates (Co-GM1). The Co-GM1 technique detected high titer (> 1...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.49.5.1289
更新日期:1997-11-01 00:00:00
abstract::Patients, clinicians, and hospitals have undergone monumental changes during the coronavirus disease 2019 (COVID-19) pandemic. This crisis has forced us to consider the obligations that we neurologists have to our individual patients as well as the greater community. By returning to our fundamental understanding of th...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/WNL.0000000000009744
更新日期:2020-07-28 00:00:00
abstract:OBJECTIVE:To determine if progressive brain atrophy could be detected over 1- and 2-year intervals in relapsing MS, based on annual MR studies from the Multiple Sclerosis Collaborative Research Group (MSCRG) trial of interferon beta-1a (Avonex). METHODS:All subjects had mild to moderate disability, with baseline expan...
journal_title:Neurology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1212/wnl.53.1.139
更新日期:1999-07-13 00:00:00
abstract::The authors studied immunoglobulin G (IgG) Fc receptor (FcgammaR) IIA, IIIA, and IIIB polymorphisms in 62 patients with Guillain-Barré syndrome (GBS) and in 89 healthy controls. The FcgammaR genotypes and allele frequencies did not differ significantly between the patients with GBS and the controls. Patients homozygou...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.55.5.705
更新日期:2000-09-12 00:00:00
abstract::All Olmsted County, Minnesota, residents who experienced brain injury from 1935 through 1979 were identified and their medical records reviewed for survival and neurologic outcome. Minimum inclusion criteria included loss of consciousness or post-traumatic amnesia or neurologic evidence of brain injury or skull fractu...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.39.1.96
更新日期:1989-01-01 00:00:00
abstract:OBJECTIVE:To investigate the role of blocking antibodies in neonatal Guillain-Barré syndrome (GBS) occurring 12 days postpartum in a child born to a mother with ongoing GBS. METHODS:We studied plasma filtrate, purified IgG, and monovalent Fab fragments from the affected mother and serum from the neonate as well as ser...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.53.6.1246
更新日期:1999-10-12 00:00:00
abstract::A 51-year-old man had a 4-month history of progressive headache and gradual onset of somnolence. MRI suggested spontaneous intracranial hypotension (SIH) with diencephalic compression, but he did not improve after three epidural blood patches. He became alert following intrathecal saline infusion that normalized his C...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.50.6.1854
更新日期:1998-06-01 00:00:00
abstract:BACKGROUND:Benefit from carotid endarterectomy is greatest when performed within 2 weeks of a presenting TIA or stroke and decreases rapidly thereafter. OBJECTIVE:To determine the delays to carotid imaging and endarterectomy in Oxfordshire, UK, and the consequences for the effectiveness of stroke prevention. METHODS:...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/01.wnl.0000170368.82460.b4
更新日期:2005-08-09 00:00:00
abstract:BACKGROUND:HIV infection is associated with a painful distal sensory polyneuropathy (DSP) that can severely limit the quality of life of affected subjects. The pathogenesis of DSP is unknown, although both HIV proteins and products of immune activation triggered by HIV infection have been implicated. OBJECTIVE:To asse...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/01.WNL.0000152981.32057.BB
更新日期:2005-03-08 00:00:00
abstract::We studied three patients with Leigh's syndrome (LS) and cytochrome c oxidase (COX) deficiency. Biochemical studies in brain, muscle, heart, liver, kidney, and fibroblasts disclosed a generalized COX deficiency. Kinetic studies of COX activity in brain mitochondria showed a low Vmax and a normal Km for reduced cytochr...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.41.4.491
更新日期:1991-04-01 00:00:00
abstract::We performed an open-label study testing the effects of GM1 ganglioside on 10 Parkinson's disease (PD) patients. Patients received 1,000 mg of GM1 by IV infusion after the last of three baseline functional assessments. Patients then self-administered GM1 at a dose of 200 mg/d, by subcutaneous injection, for 18 weeks. ...
journal_title:Neurology
pub_type: 临床试验,杂志文章
doi:10.1212/wnl.45.6.1149
更新日期:1995-06-01 00:00:00
abstract:OBJECTIVE:To compare effects of immediate-release (IR) and sustained-release (CR) carbidopa/levodopa in levodopa-naive PD patients. BACKGROUND:It was hypothesized that the long-acting preparation would be associated with fewer long-term complications. METHODS:A total of 618 patients were studied in 36 centers worldwi...
journal_title:Neurology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1212/wnl.53.5.1012
更新日期:1999-09-22 00:00:00
abstract:OBJECTIVE:This study investigated the sex difference in prevalence of depression at 90 days after first-ever stroke. METHODS:Patients with first-ever stroke (n = 786) were identified from the population-based Brain Attack Surveillance in Corpus Christi project (2011-2016). Poststroke depressive symptoms were assessed ...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/WNL.0000000000009394
更新日期:2020-05-12 00:00:00
abstract::This study was undertaken to determine the amount and histologic appearance of the persistent thymic tissue removed post mortem from 20 patients over 60 years of age with myasthenia gravis. One patient died several days after thymectomy. No recognizable thymic tissue on gross examination was seen in any patient. On mi...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.25.3.294
更新日期:1975-03-01 00:00:00
abstract::Previous research has shown that the Mini-Mental State Examination (MMS) is biased as a measure of cognitive impairment in minority and low-education patients. The purpose of this study was to (1) develop a statistical correction for effects of age and education and (2) test the efficacy of the statistically adjusted ...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.46.3.700
更新日期:1996-03-01 00:00:00
abstract:OBJECTIVES:This study aims to investigate if patients with inflammatory neuropathies and tremor have evidence of dysfunction in the cerebellum and interactions in sensorimotor cortex compared to nontremulous patients and healthy controls. METHODS:A prospective data collection study investigating patients with inflamma...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/WNL.0b013e318292a2b8
更新日期:2013-05-14 00:00:00
abstract::We investigated the association of PD with a recently reported I93M mutation of the ubiquitin carboxy-terminal hydrolase L1 (UCH-L1) gene, and with a new and common polymorphic variant S18Y of the same gene. We did not identify the I93M mutation in any of 139 unrelated PD cases or 113 controls. However, S18Y polymorph...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.53.8.1858
更新日期:1999-11-10 00:00:00
abstract:OBJECTIVE:To describe the clinical, genetic and MR characteristics of patients with familial mesial temporal lobe epilepsy (MTLE). DESIGN/METHODS:The familial occurrence of MTLE was identified by a systematic search of family history of seizures in patients followed in the authors' epilepsy clinic. All probands and, w...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.56.2.166
更新日期:2001-01-23 00:00:00
abstract::A comprehensive sequence analysis of 29 exons that code for the functional domains of LRRK2 in 160 nondominant Parkinson disease (PD) patients was performed. Novel variant screening in a further 470 sporadic PD patients and 630 controls revealed two novel variants (R1067Q and IVS33 + 6 T>A), which are likely to be pat...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/01.wnl.0000180517.70572.37
更新日期:2005-10-25 00:00:00
abstract::We report two conjugal cases of amyotrophic lateral sclerosis (ALS) occurring between 1977 and 1991 in southern France (Languedoc-Roussillon). Although conjugal ALS may occur by chance, the description of two cases in the same area points to a role of environmental or genetic factors in the etiology of the disease. ...
journal_title:Neurology
pub_type: 杂志文章
doi:10.1212/wnl.44.3_part_1.547
更新日期:1994-03-01 00:00:00