Abstract:
:In aphasia due to stroke, language-related activity shifts not only to undamaged cortex within the dominant hemisphere but also toward right-sided areas homotopical to the left-sided lesion. We examined whether a rightward shift takes place in primary progressive aphasia (PPA). Nineteen PPA patients participated, 19 healthy subjects and 14 patients with amnestic mild cognitive impairment who served as controls. Subjects underwent neuropsychological assessment, structural magnetic resonance imaging (MRI), and a functional MRI with a factorial design: words versus pictures and associative-semantic versus visuoperceptual task. Measures of neuropsychological performance were entered as regressors into a multiple linear regression analysis, with response amplitude during the associative-semantic versus control conditions as outcome variable. Language competence correlated negatively with responses in the right anterior temporal cortex and positively with volume and responses in the left-sided homotope. In normal subjects, anterior temporal activation was more extensive to the left than the right (laterality index [LI], +0.64; standard error [SE], 0.11). Laterality was inverted in PPA with word comprehension deficit (LI, - 0.34; SE, 0.19), with an intermediate pattern in PPA without comprehension deficit (LI, +0.23; SE, 0.14). The rightward laterality shift previously reported in aphasic stroke extends to PPA, in particular, when comprehension is deficient.
journal_name
Ann Neuroljournal_title
Annals of neurologyauthors
Vandenbulcke M,Peeters R,Van Hecke P,Vandenberghe Rdoi
10.1002/ana.20588keywords:
subject
Has Abstractpub_date
2005-09-01 00:00:00pages
362-70issue
3eissn
0364-5134issn
1531-8249journal_volume
58pub_type
临床试验,杂志文章abstract::The pathogenetic role of anti-GM1 in chronic acquired demyelinating polyneuropathy (CADP) is uncertain. An association between antibodies and disease activity has not yet been established. In 8 patients with CADP followed longitudinally, anti-GM1 antibodies were monitored with a standardized enzyme-linked immunosorben...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410430113
更新日期:1998-01-01 00:00:00
abstract::It is well recognized that plasma fluctuations resulting from oral levodopa therapy may cause an unstable clinical response in parkinsonian patients. We have therefore developed a slow-release polymer matrix system that can deliver levodopa continuously for extended periods of time (at least 225 days) after subcutaneo...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410280519
更新日期:1990-11-01 00:00:00
abstract::A 51-year-old man presented with a six-year history of gradually progressive exertional dyspnea. His complaint was attributed to increasing age, but evaluation finally led to a diagnosis of diaphragmatic paralysis. Neurological examination disclosed only minimal evidence of weakness of limb muscles. Electromyographic ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410090618
更新日期:1981-06-01 00:00:00
abstract::Excessive astrocytosis in cortical tubers in tuberous sclerosis complex (TSC) suggests that astrocytes may be important for epileptogenesis in TSC. We previously demonstrated that astrocyte-specific Tsc1 gene inactivation in mice (Tsc1 cKO mice) results in progressive epilepsy. Here, we report that glutamate transport...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10648
更新日期:2003-08-01 00:00:00
abstract::Various C-terminally truncated amyloid beta peptides (Abeta) are linked to Alzheimer's disease (AD) pathogenesis. Cerebrospinal fluid (CSF) concentrations of Abeta38, Abeta40, and Abeta42 were measured by enzyme-linked immunosorbent assay in 30 patients with AD and 26 control subjects. CSF Abeta42 levels was decreased...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20508
更新日期:2005-07-01 00:00:00
abstract:OBJECTIVE:Intracellular amyloid β-protein (Aβ) contributes to neurodegeneration in Alzheimer disease (AD). Apomorphine (APO) is a dopamine receptor agonist for Parkinson disease and also protects against oxidative stress. Efficacy of APO for an AD mouse model and effects of APO on cell cultures are studied. METHODS:Th...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.22319
更新日期:2011-02-01 00:00:00
abstract:OBJECTIVE:Oral anticoagulation treatment (OAT) resumption is a therapeutic dilemma in intracerebral hemorrhage (ICH) care, particularly for lobar hemorrhages related to amyloid angiopathy. We sought to determine whether OAT resumption after ICH is associated with long-term outcome, accounting for ICH location (ie, loba...
journal_title:Annals of neurology
pub_type: 杂志文章,meta分析,多中心研究
doi:10.1002/ana.25079
更新日期:2017-11-01 00:00:00
abstract:OBJECTIVE:Patients with temporal lobe epilepsy often display cognitive comorbidity with recurrent seizures. However, the cellular mechanisms underlying the impairment of neuronal information processing remain poorly understood in temporal lobe epilepsy. Within the hippocampal formation neuronal networks undergo major r...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24348
更新日期:2015-04-01 00:00:00
abstract::The rate of local cerebral glucose utilization was determined for quantification of energy metabolism in macrostructures of the sensorimotor system during propagation of focal motor seizures in 24-month-old monkeys. The rate was measured in 4 control animals and in 4 monkeys each with seizures limited to the contralat...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410070304
更新日期:1980-03-01 00:00:00
abstract::A persistent vegetative state (severe dementia) developed in a 30-year-old man following hypoglycemic coma. Despite the poor clinical outcome, sensory evoked response recovered between 6 and 34 months after the insult. The cerebral blood flow level at rest after 34 months was slightly above the normal range. This find...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410140414
更新日期:1983-10-01 00:00:00
abstract::The nucleotide sequence of human T-lymphotropic virus type I (HTLV-I) in central nervous system tissue was determined in 3 autopsy cases with HTLV-I-associated myelopathy (HAM)/tropical spastic paraparesis (TSP) and 1 seropositive carrier without HAM/TSP but with multiple sclerosis. All HAM/TSP samples (3 spinal cords...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410360206
更新日期:1994-08-01 00:00:00
abstract::A family with Gerstmann-Sträussler-Scheinker disease had coincidental clinical onset in three members of two generations, a phenomenon suggesting a common source of a transmissible agent. A regular dietary supplement in this family was home-bred rabbit. The clinical picture, although generally similar to that in previ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410140611
更新日期:1983-12-01 00:00:00
abstract::Patients are understandably anxious if seizures occur immediately after temporal lobectomy. Such "neighborhood" seizures are commonly regarded as irrelevant to seizure outcome and discounted in outcome measurement. We conducted an in-depth examination of early postoperative seizures (<28 days) and outcome. The risk of...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20372
更新日期:2005-02-01 00:00:00
abstract:OBJECTIVE:Mounting evidence links neurodegenerative disorders such as Parkinson disease and Alzheimer disease with mitochondrial dysfunction, and recent emphasis has focused on mitochondrial dynamics and quality control. Mitochondrial dynamics and mtDNA maintenance is another link recently emerged, implicating mutation...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24410
更新日期:2015-07-01 00:00:00
abstract::Regional patterns of cerebral glucose utilization (rCMRglc) and blood flow (rCBF) were examined in the early recovery period following transient forebrain ischemia in order to correlate early postischemic physiological events with regionally selective patterns of ischemic neuropathology. Wistar rats were subjected to ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410180410
更新日期:1985-10-01 00:00:00
abstract::We describe a 33-year-old homosexual man with a steroid-responsive, remitting and relapsing leukoencephalopathy associated with recent human immunodeficiency virus type 1 (HIV-1) seroconversion. Biopsy of a parieto-occipital lesion revealed demyelination and astrogliosis with focal necrosis. Detailed investigations de...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410310107
更新日期:1992-01-01 00:00:00
abstract::The aim of this study was to evaluate the use of functional magnetic resonance imaging as an alternative to intraoperative electrocortical stimulation mapping for the localization of critical language areas in the temporoparietal region. We investigated several requirements that functional magnetic resonance imaging m...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10117
更新日期:2002-03-01 00:00:00
abstract::The etiology of sudden death in patients with epilepsy remains unclear. Previous studies in a well-established sheep model of status epilepticus showed that more than one-third of the unsedated animals died within 5 minutes of seizure onset due to hypoventilation. The relative contributions of airway obstruction and c...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410420409
更新日期:1997-10-01 00:00:00
abstract::Persons affected with tuberous sclerosis complex (TSC) develop a wide range of neurological abnormalities including aberrant neuronal migration and seizures. In an effort to model TSC-associated central nervous system abnormalities in mice, we generated two independent lines of astrocyte-specific Tsc1 conditional knoc...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10283
更新日期:2002-09-01 00:00:00
abstract::We recorded horizontal smooth-pursuit responses to sinusoidal and step-ramp stimuli in 7 patients with unilateral frontal lobe lesions. Five patients had directional smooth-pursuit deficits, all with impairment toward the side of cerebral damage. Ipsidirectional pursuit defects involved pursuit maintenance to sinusoid...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410370406
更新日期:1995-04-01 00:00:00
abstract::The subtype IV of Machado-Joseph disease (MJD), characterized by parkinsonism variably combined with ataxia, distal atrophy, and sensory loss, has been all but ignored in recent reports of MJD, including those describing the molecular biologic substrate of the disease. We have demonstrated expansion of the CAG trinucl...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410380422
更新日期:1995-10-01 00:00:00
abstract:OBJECTIVE:GM2 gangliosidoses are lysosomal diseases due to biallelic mutations in the HEXA (Tay-Sachs disease [TS]) or HEXB (Sandhoff disease [SD]) genes, with subsequent low hexosaminidase(s) activity. Most patients have childhood onset, but some experience the first symptoms during adolescence/adulthood. This study a...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.25689
更新日期:2020-04-01 00:00:00
abstract::Striatal 18F-6-fluorodopa (FD) uptake constants were measured by positron emission tomography in (1) normal cynomolgus monkeys and (2) a series of cynomolgus and rhesus monkeys that had received intracarotid infusions of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). After the animals were killed, the number and...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410340306
更新日期:1993-09-01 00:00:00
abstract::N-acetylaspartate (NAA) contributes to the most prominent signal in proton magnetic resonance spectroscopy (1H-MRS) of the adult human brain. We report the absence of NAA in the brain of a 3-year-old child with neurodevelopmental retardation and moderately delayed myelination. Since normal concentration of NAA in body...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:
更新日期:2001-04-01 00:00:00
abstract::In diabetic nerves, the activation of the polyol pathway and a resulting decrease in Na(+)-K(+) ATPase activity lead to intra-axonal Na(+) accumulation and a smaller Na(+) gradient across the axolemma than normal. To investigate whether glycemic control is associated with acutely reversible changes in axonal excitabil...
journal_title:Annals of neurology
pub_type: 临床试验,杂志文章
doi:10.1002/ana.20232
更新日期:2004-10-01 00:00:00
abstract::Direct DNA tests for mutations in neurogenetic disorders are establishing a new era in diagnostic neurology. These highly accurate and specific tests will greatly improve diagnosis and genetic counseling, lead to more accurate assessment of prognosis, and reduce the cost of diagnostic evaluations. However, the use and...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410380204
更新日期:1995-08-01 00:00:00
abstract::Autopsy examination confirmed the diagnosis of subacute necrotizing encephalomyelopathy (SNE) in a 7-month-old male infant who underwent several metabolic studies before death. Intermittent lactic acidemia and fumaric aciduria, an extreme hyperglycemic response to an intravenous bolus of alanine, and an elevated total...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410060605
更新日期:1979-12-01 00:00:00
abstract::The need for novel, efficacious, antiseizure therapies is widely acknowledged. This study investigates in humans the feasibility, safety, and efficacy of high-frequency electrical stimulation (HFES; 100-500 Hz) triggered by automated seizure detections. Eight patients were enrolled in this study, which consisted of a ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20377
更新日期:2005-02-01 00:00:00
abstract::In Alzheimer's disease (AD), loss of cortical and hippocampal choline acetyltransferase (ChAT) activity has been correlated with dementia severity and disease duration, and it forms the basis for current therapies. However, the extent to which reductions in ChAT activity are associated with early cognitive decline has...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10069
更新日期:2002-02-01 00:00:00
abstract::Emotional blunting can be found after cerebellar lesions. However, the mechanism of such a modification is not clear. We present a patient with emotional flattening and increased risk taking after left cerebellar infarct who had an impaired autonomic reactivity to negative as compared with positive reinforcement. This...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10549
更新日期:2003-05-01 00:00:00