Abstract:
:The functional status of the globus pallidus internal segment (GPi) plays a key role in mediating the effects of antiparkinsonian drugs. During long-term levodopa therapy, patients develop abnormal movements, dyskinesias, the pathophysiological basis of which is poorly understood. We recorded single cells in the GPi of parkinsonian monkeys continuously through the "off" and "on" states, and 10 to 15 minutes later during "on with or without dyskinesias," depending on two doses of levodopa. The transition from the "off" to the "on" state was characterized by a decrease (most cells), no change, or an increase in firing rate of individual cells. During dyskinesias, firing rates declined profoundly in almost all cells, with decrements as low as 97% in individual cells. These changes occurred only when dyskinesias were present. The difference in GPi activity between "on" and "on with dyskinesias" suggests that normal motor function in Parkinson's disease critically depends on fine tuning of the basal ganglia output. Dyskinesias result from an imbalanced low GPi discharge, a circumstance that may be susceptible to development of new therapeutic approaches.
journal_name
Ann Neuroljournal_title
Annals of neurologyauthors
Papa SM,Desimone R,Fiorani M,Oldfield EHdoi
10.1002/1531-8249(199911)46:5<732::aid-ana8>3.0.cokeywords:
subject
Has Abstractpub_date
1999-11-01 00:00:00pages
732-8issue
5eissn
0364-5134issn
1531-8249journal_volume
46pub_type
杂志文章abstract::Sera from 6 of 12 patients with paraneoplastic cerebellar degeneration (PCD) contained anti-Purkinje cell antibodies, as determined by indirect immunofluorescence on frozen sections of normal human cerebellum. Samples of cerebrospinal fluid from 2 of the patients with serum antibodies were tested, and both specimens c...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410180513
更新日期:1985-11-01 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:OBJECTIVE:To evaluate the efficacy and safety of BHT-3009 in relapsing-remitting multiple sclerosis (MS) and to confirm that BHT-3009 causes immune tolerance. METHODS:BHT-3009 is a tolerizing DNA vaccine for MS, encoding full-length human myelin basic protein. Relapsing-remitting MS patients were randomized 1:1:1 into...
journal_title:Annals of neurology
pub_type: 杂志文章,随机对照试验
doi:10.1002/ana.21370
更新日期:2008-05-01 00:00:00
abstract::Ocular flutter is a rare horizontal eye movement disorder characterized by rapid saccadic oscillations. It has been hypothesized that it is caused by loss of "pause" neuronal inhibition of "burst" neuron function in the paramedian pontine reticular formation (PPRF); however, there have been no imaging studies confirmi...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.1140
更新日期:2001-09-01 00:00:00
abstract::Calcium/calmodulin-dependent serine protein kinase (CASK) belongs to the membrane-associated guanylate kinase protein family. The members of this protein family function as multiple domain adaptor proteins originally identified at cell junctions and synapses. Insertional mutations or targeted disruption of the CASK ge...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.21755
更新日期:2009-10-01 00:00:00
abstract::The consequences of axonal injuries in the adult nervous system depend on the location of the axons: complete anatomical and functional repair can occur in the peripheral but not the central nervous system. A quantitative electron microscopical comparison of the reactions to axonal injuries in a peripheral site (the s...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410030203
更新日期:1978-02-01 00:00:00
abstract::A 9-year-old, blind boy with severe mental retardation with a chronic sleep/wake disturbance had a circadian rhythm of 24.75 hours and an internal desynchronization of the endogenous rhythms. Treatment with oral melatonin given at 6 PM induced a regular sleep/wake pattern. Melatonin, in this patient, convincingly entr...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410290318
更新日期:1991-03-01 00:00:00
abstract::A nested polymerase chain reaction was used for the detection of Epstein-Barr virus DNA in 1 patient with encephalitis, and in 1 patient with myelitis. Epstein-Barr virus DNA was detected in cerebrospinal fluid samples obtained at the onset of neurological symptoms in both patients, and serological findings indicated ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410350522
更新日期:1994-05-01 00:00:00
abstract:OBJECTIVE:To assess the ability for visual search and recognition of roadside targets and safety errors during a landmark and traffic sign identification task in drivers with Parkinson's disease (PD). METHODS:Seventy-nine drivers with PD and 151 neurologically normal older adults underwent a battery of visual, cogniti...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20958
更新日期:2006-10-01 00:00:00
abstract::Intraneural injection of antisera from rabbits with high antigalactocerebroside antibody levels into rat sciatic nerve produced acute nerve conduction block. This was first apparent in some motor axons between 30 and 60 minutes after injection and progressed to completion within 2 to 4 hours. Concurrent morphological ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410110506
更新日期:1982-05-01 00:00:00
abstract::PINK1 was recently found to be associated with PARK6 as the causative gene. We performed mutation analysis in eight inbred families whose haplotypes link to the PARK6 region. We identified six pathogenic mutations (R246X, H271Q, E417G, L347P, and Q239X/R492X) in six unrelated families. All sites of mutations were nove...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20251
更新日期:2004-09-01 00:00:00
abstract::Polymorphonuclear neutral protease activity (PMN-NPA) was examined in 87 patients with definite multiple sclerosis (MS) (48 active, 39 inactive), 49 patients with other neurological diseases (OND), 24 patients with immune-mediated non-neurological diseases (INND), and 32 normal subjects. PMN-NPA was found to be signif...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410180519
更新日期:1985-11-01 00:00:00
abstract::Genomic triplication of the alpha-synuclein gene recently has been associated with familial Parkinson's disease in the Spellman-Muenter kindred. Here, we present an independent family, of Swedish-American descent, with hereditary early-onset parkinsonism with dementia due to alpha-synuclein triplication. Brain tissue ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10846
更新日期:2004-02-01 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::We report on 3 anti-Hu-positive patients who presented with clinical and electroencephalographic (EEG) features of epilepsia partialis continua (EPC). Two of the patients had an associated small cell carcinoma. Magnetic resonance imaging (MRI) disclosed a hyperintense nonenhancing focal lesion in T2-weighted images in...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/1531-8249(199902)45:2<255::aid-ana18>3.0.c
更新日期:1999-02-01 00:00:00
abstract::The regional metabolic rate for glucose (rMRglu) was studied in macaque monkeys after spinal cord transection at T10, both during spinal shock and after reflexes had returned. The rMRglu was measured in all Rexed layers in cord segments both caudal and rostral to the level of the transection utilizing the quantitative...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410140106
更新日期:1983-07-01 00:00:00
abstract::Four examples of grossly mineralized lesions of the brain, causing seizures, are described; they include 2 hamartomas, a choristoma (novel associations), and an idiopathic "brain stone." Each was detectable with routine roentgenograms, and the seizures were ameliorated by surgical therapy. ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410020413
更新日期:1977-10-01 00:00:00
abstract:OBJECTIVE:To examine age-related changes in the neural systems for reading in nonimpaired and dyslexic children and adolescents. METHODS:Functional magnetic resonance imaging was used to study age-related changes in the neural systems for reading in a cross-sectional sample of 232 right-handed children 7 to 18 years o...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21093
更新日期:2007-04-01 00:00:00
abstract::Two extended haplotypes of the tau gene (H1 and H2) have been described. The frequency of H1 haplotype is increased in progressive supranuclear palsy (PSP). PSP is associated with filamentous tau lesions in neurons and glia, which are reportedly composed exclusively of tau isoforms with four repeats in the microtubule...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.1159
更新日期:2001-10-01 00:00:00
abstract::A case-control study was performed to determine the possible roles of various environmental factors, prior illnesses, drug use, and personal habits in the development of Alzheimer's disease. Such information was collected from 40 patients with onset of dementia prior to age 70 and from 80 community control subjects ma...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410150406
更新日期:1984-04-01 00:00:00
abstract::beta-Dystroglycan, a 43-kd transmembrane dystrophin-associated glycoprotein, plays an important role in linking dystrophin to the laminin-binding alpha-dystroglycan. alpha-/beta-Dystroglycan is encoded by a single gene on chromosome 3p21 and ubiquitously expressed in muscle and nonmuscle tissues. No known human diseas...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410400617
更新日期:1996-12-01 00:00:00
abstract:OBJECTIVE:Alterations of the gut microbiome in Parkinson disease (PD) have been repeatedly demonstrated. However, little is known about whether such alterations precede disease onset and how they relate to risk and prodromal markers of PD. We investigated associations of these features with gut microbiome composition. ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.25788
更新日期:2020-08-01 00:00:00
abstract::The fate of neurofilament (NF) proteins was examined in sections of nerves from rats that survived for 3 to 90 days following nerve transection, using anti-NF monoclonal antibodies and immunohistochemical techniques. The same methods were also applied to twenty-three human nerve biopsy specimens. Granular debris with ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410160312
更新日期:1984-09-01 00:00:00
abstract::A 42-year-old homosexual man without evidence of immune deficiency developed cerebral granulomatous angiitis in association with the isolation of human T-lymphotropic virus type III (HTLV-III) from brain tissue and cerebrospinal fluid. This syndrome may be an additional neurological sequela of HTLV-III infection. ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410200316
更新日期:1986-09-01 00:00:00
abstract::We studied patients with partial and primary generalized seizures using fluorine-18-labeled 2-fluorodeoxyglucose and positron emission tomography. Interictal studies of patients with partial seizures showed regions of focal or lateralized hypometabolism in 15 of 17 patients with unilateral electroencephalographic foci...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410150734
更新日期:1984-01-01 00:00:00
abstract::Dopamine transporter messenger RNA (mRNA) expression was assessed by in situ hybridization over individual pigmented neurons from the substantia nigra pars compacta in midbrain sections from 7 parkinsonian and 7 age-matched, neurologically normal patients. In the normal control brains, high levels of expression of dop...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410350421
更新日期:1994-04-01 00:00:00
abstract::Ultrasound scans of three newborn infants with cerebral ischemic lesions demonstrated on computed tomographic scan showed unexpected changes in echogenicity of brain parenchyma in addition to lateralized mass effect. Areas of increased echogenicity were present adjacent to regions of infarction identified on computed ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410140212
更新日期:1983-08-01 00:00:00
abstract:OBJECTIVE:Migraine aura is sparsely studied due to the highly challenging task of capturing patients during aura. Cortical spreading depression (CSD) is likely the underlying phenomenon of aura. The possible correlation between the multifaceted phenomenology of aura symptoms and the effects of CSD on the brain has not ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.25096
更新日期:2017-12-01 00:00:00
abstract::Six polypeptides resolved by two-dimensional electrophoresis of homogenates from human skeletal muscle have been identified as tropomyosin by electrophoretic and immunochemical methods. The 6 proteins are consistently present in approximately the same abundance in normal biceps, deltoid, gastrocnemius, and quadriceps ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410180211
更新日期:1985-08-01 00:00:00
abstract::Twenty-five patients with recently diagnosed leptomeningeal metastases underwent a prospective clinical and electro-physiological study to assess the mode and extent of peripheral nerve and spinal root involvement. Motor conduction velocities and F wave latencies in the legs were found frequently to be disturbed compa...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410170611
更新日期:1985-06-01 00:00:00