Abstract:
:We performed dynamic [18F]fluorodeoxyglucose ([18F]FDG) positron emission tomographic (PET) analyses in 8 patients. Rate constants of influx (K1*), efflux (k2*), phosphorylation (k3*), and dephosphorylation (k4*) were derived for the regions of interest (ROIs), which included (1) the hypometabolic epileptogenic regions and (2) the homologous regions in the contralateral hemispheres. In addition, the four constants were determined from at least one clearly defined (control) ROI from the same plane and its homologous contralateral ROI. Influx (K1*) in the epileptogenic region was reduced in comparison with the contralateral ROI. Reductions in influx (K1*), which averaged 18 +/- 13% (mean +/- SD), [18F]FDG phosphorylation (k3*) (25 +/- 20%), and brain glucose utilization rates (26 +/- 10%) were observed in the epileptogenic region. Reductions in efflux were not statistically significant (k2* = 13 +/- 28%) but were comparable in magnitude to the average reduction in K1*. No ipsilateral versus contralateral differences were seen for any rate constants measured outside the epileptogenic region. Influx correlated highly with phosphorylation in the epileptogenic region. Our data suggest that the hypometabolic epileptogenic focus seen in [18F]FDG-PET studies is also a region of reduced blood-brain barrier glucose transporter activity and that reductions in phosphorylation are proportional to reductions in [18]FDG influx.
journal_name
Ann Neuroljournal_title
Annals of neurologyauthors
Cornford EM,Gee MN,Swartz BE,Mandelkern MA,Blahd WH,Landaw EM,Delgado-Escueta AVdoi
10.1002/ana.410430615subject
Has Abstractpub_date
1998-06-01 00:00:00pages
801-8issue
6eissn
0364-5134issn
1531-8249journal_volume
43pub_type
杂志文章abstract::Because the symptomatic treatments for multiple sclerosis (MS) are limited, new approaches have been sought. Anatomical studies of MS lesions show a relative preservation of axons, and clinical studies suggest that some of the neurological impairment in patients with MS is physiological. Electrophysiological studies s...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.410360728
更新日期:1994-01-01 00:00:00
abstract::We describe a French amyotrophic lateral sclerosis (ALS) family with two distinct mutations in the Cu/Zn superoxide dismutase (SOD1) gene. The D90A mutation has been well described and clearly shown to cause recessive ALS. In this family, affected individuals are heterozygous for the D90A mutation and also carry a sin...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/1531-8249(20010201)49:2<267::aid-ana51>3.0
更新日期:2001-02-01 00:00:00
abstract:OBJECTIVE:A number of hypotheses have been put forward as to why humans respond to fever by seizing. The current leading hypotheses are that respiratory alkalosis produces an as yet unidentified change in neural excitability or that inflammatory mediators potentiate excitatory synaptic transmission. However, it is well...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21712
更新日期:2009-08-01 00:00:00
abstract::Mitochondrial iron accumulation is thought to underlie the pathophysiology of Friedreich ataxia and may occur at the expense of cytosolic iron. Decreases in cytosolic iron induce expression of the transferrin receptor, some of which is released into the serum. Here, we demonstrate that serum transferrin receptor conce...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:
更新日期:2000-05-01 00:00:00
abstract::Progressive multifocal leukoencephalopathy (PML) complicating the acquired immunodeficiency syndrome (AIDS) is typically inexorably progressive with death usually occurring within 6 months of symptom onset. Occasional patients have been observed to survive longer than 1 year, often with remission of clinical features....
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410440309
更新日期:1998-09-01 00:00:00
abstract:OBJECTIVE:To create a data-driven computational model that identifies brain regions most frequently influenced by successful deep brain stimulation (DBS) of the globus pallidus (GP) for advanced, medication-resistant, generalized dystonia. METHODS:We studied a retrospective cohort of 21 DYT1 primary dystonia patients ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24187
更新日期:2014-07-01 00:00:00
abstract::Dentatorubral-pallidoluysian atrophy is an autosomal dominant neurodegenerative disease characterized by various combinations of ataxia, choreoathetosis, myoclonus, epilepsy, and dementia as well as a wide range of ages at onset. A specific unstable trinucleotide repeat expansion in a gene on the short arm of chromoso...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410370610
更新日期:1995-06-01 00:00:00
abstract::The effects on cerebral hemodynamics of venisection and a 4% albumin-saline infusion were studied in six patients with high hematocrit (mean, 51.5%). Cerebral blood flow (CBF) was measured using the xenon 133 intracarotid injection method. Blood gases were measured in arterial and jugular venous blood. Rapid two-stage...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410090507
更新日期:1981-05-01 00:00:00
abstract::Posterior choroidal artery (PChA) territory infarcts remain the least well-known type of thalamic infarcts. Our study of 10 personal cases, selected from 2,925 stroke patients admitted consecutively to a community-based primary care center, and 10 published cases of unilateral PChA territory infarct suggests that they...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410390614
更新日期:1996-06-01 00:00:00
abstract::Imaging of cerebrovascular beta-amyloid (cerebral amyloid angiopathy) is complicated by the nearly universal overlap of this pathology with Alzheimer's pathology. We performed positron emission tomographic imaging with Pittsburgh Compound B on 42-year-old man with early manifestations of Iowa-type hereditary cerebral ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21528
更新日期:2008-11-01 00:00:00
abstract::We have conducted a trial to randomly assess the efficacy and tolerance of intravenous immunoglobulin (i.v.Ig) or plasma exchange (PE) in myasthenia gravis (MG) exacerbation and to compare two doses of i.v.Ig. Eighty-seven patients with MG exacerbation were randomized to receive either three PE (n = 41), or i.v.Ig (n ...
journal_title:Annals of neurology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/ana.410410615
更新日期:1997-06-01 00:00:00
abstract:OBJECTIVE:To determine whether brain activation changes in clinically and neurocognitively normal human immunodeficiency virus (HIV)-infected and in HIV-seronegative control (SN) participants over a 1-year period. METHODS:Functional magnetic resonance imaging (fMRI) was performed in 32 SN and 31 HIV patients (all with...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21594
更新日期:2009-03-01 00:00:00
abstract::Chronic measles virus infection of the brain causes subacute sclerosing panencephalitis (SSPE), a progressive, relentless fatal disorder. We report a 52-year-old male who developed focal, chronic persistent measles virus infection of the brain following interferon and ribavirin therapy for hepatitis C, and who respond...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24183
更新日期:2014-06-01 00:00:00
abstract::We prospectively recruited 10 patients who presented with urinary retention as a neurological deficit that was attributable to lateral medullary infarction. Of these, 9 patients underwent a urodynamic study, which demonstrated detrusor underactivity of the bladder in 7 patients. Urinary retention developed mainly when...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24379
更新日期:2015-04-01 00:00:00
abstract::Fifty children with marked neurological abnormality manifested by moderate or severe motor disability and severe mental retardation were compared with a large control population with respect to prospectively ascertained perinatal characteristics. None of 60 prenatal factors distinguished the affected group from contro...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410020505
更新日期:1977-11-01 00:00:00
abstract:OBJECTIVE:The Veterans Administration Cooperative Studies Program #468, a multicenter study that randomized Parkinson's disease (PD) patients to either subthalamic nucleus (STN) or globus pallidus internus (GPi) deep brain stimulation (DBS), found that stimulation at either target provided similar overall motoric benef...
journal_title:Annals of neurology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1002/ana.24374
更新日期:2015-04-01 00:00:00
abstract::The current functional model of the basal ganglia suggests that dyskinesia results from abnormally low activity at the output of the system. This view appears incomplete. The recent literature suggests other factors. Thus, dyskinesia may result from disturbance of surround inhibition: a physiologic mechanism to select...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:
更新日期:2000-04-01 00:00:00
abstract::We report the use of a new stable isotope-labeled form of levodopa (LD) to examine in vivo central LD metabolism in Parkinson's disease (PD). Eight patients representing a wide spectrum of disease severity were administered 50 mg of carbidopa orally followed in 1 hour by an intravenous bolus of 150 mg of stable isotop...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410420305
更新日期:1997-09-01 00:00:00
abstract::Thirty patients in whom the initial diagnosis of multiple sclerosis was clinically entertained underwent cranial magnetic resonance imaging (MRI) in close temporal relationship to cranial x-ray computed tomography (CT), electrodiagnostic studies (visual evoked responses, brainstem auditory evoked responses, and somato...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410170509
更新日期:1985-05-01 00:00:00
abstract:OBJECTIVE:Amyotrophic lateral sclerosis (ALS) is a motor neuron disease whose pathophysiological deficits, causing impairment in motor function, are largely unknown. Here we propose that hydrogen sulfide (H2 S), as a glial-released inflammatory factor, contributes to ALS-mediated motor neuron death. METHODS:H2 S conce...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24372
更新日期:2015-04-01 00:00:00
abstract:OBJECTIVE:The effect of prestroke aspirin use on initial severity, hemorrhagic transformation, and functional outcome of ischemic stroke is uncertain. METHODS:Using a multicenter stroke registry database, patients with acute ischemic stroke of three subtypes (large artery atherosclerosis [LAA], small vessel occlusion ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24602
更新日期:2016-04-01 00:00:00
abstract:OBJECTIVE:The study was undertaken to determine whether normobaric hypoxia causes elevated brain volume and intracranial pressure in individuals with symptoms consistent with acute mountain sickness (AMS). METHODS:Thirteen males age = (26 (sd 6)) years were exposed to normobaric hypoxia (12% O2 ) and normoxia (21% O2 ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24171
更新日期:2014-06-01 00:00:00
abstract:OBJECTIVE:Nonketotic hyperglycinemia is a neurometabolic disorder characterized by intellectual disability, seizures, and spasticity. Patients with attenuated nonketotic hyperglycinemia make variable developmental progress. Predictive factors have not been systematically assessed. METHODS:We reviewed 124 patients stra...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24485
更新日期:2015-10-01 00:00:00
abstract::The cerebrovascular response of newborn animals to hypotension has not been defined on a regional basis. Using an autoradiographic technique employing 14C-iodoantipyrine as indicator, we studied the cerebral physiological responses of newborn dogs to hypotension induced by exsanguination or by administration of Escher...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410120506
更新日期:1982-11-01 00:00:00
abstract::The reported inverse association between the S18Y variant of the ubiquitin carboxy-terminal hydrolase L1 (UCHL1) gene and Parkinson's disease (PD) has strong biological plausibility. If confirmed, genetic association of this variant with PD may support molecular targeting of the UCHL1 gene and its product as a therape...
journal_title:Annals of neurology
pub_type: 杂志文章,meta分析
doi:10.1002/ana.20017
更新日期:2004-04-01 00:00:00
abstract:OBJECTIVE:The prevalence of mitochondrial disease has proven difficult to establish, predominantly as a result of clinical and genetic heterogeneity. The phenotypic spectrum of mitochondrial disease has expanded significantly since the original reports that associated classic clinical syndromes with mitochondrial DNA (...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24362
更新日期:2015-05-01 00:00:00
abstract::Powerful new methods for imaging both brain anatomy and brain function are appearing at an increasing rate. The modern era of minimally invasive, highly informative, neurological diagnostic imaging methods began with the introduction of x-ray computed tomography in the 1970s. More recently, positron emission tomograph...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.410320316
更新日期:1992-09-01 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::In healthy individuals, motor training elicits cortical plasticity that encodes the kinematic details of the practiced movements and is thought to underlie recovery of function after stroke. The influence of age on this form of plasticity is incompletely understood. We studied 55 healthy subjects and identified a subs...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10529
更新日期:2003-04-01 00:00:00
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