Abstract:
:In adult brain, during insulin-induced hypoglycemia, striatal extracellular fluid concentrations of the excitatory amino acids glutamate and aspartate rise markedly (fourfold to tenfold). In this study, we used in vivo microdialysis to determine if insulin-induced hypoglycemia altered striatal amino acid efflux in similar fashion in the immature brain. Microdialysis probes were inserted into the right striatum of rats on postnatal day 7. After a 2-hour recovery period, in each animal a 30-minute baseline sample was obtained. Then insulin (0.6 mu/kg, intraperitoneal injection) was administered (n = 6) and dialysate sampling was continued over the next 210 minutes (terminal blood glucose level less than 5 mg/dl). Untreated control rats (n = 6) were sampled over the same time interval. After pre-column derivatization with o-phthaldialdehyde, dialysate samples were assayed by high-pressure liquid chromatography with electrochemical detection to measure their amino acid content; eight amino acids (glutamate, aspartate, taurine, glutamine, alanine, serine, glycine, and asparagine) were consistently detected. In controls, amino acid efflux did not change over 4 hours. In hypoglycemic animals, glutamate efflux increased (peak: 238 +/- 85% of baseline, p = 0.02, repeated measures analysis of variance [ANOVA]), glutamine efflux declined (to 44 +/- 5% of baseline, p = 0.002, ANOVA), and taurine efflux increased (up to 310 +/- 120% of baseline; p less than 0.06, ANOVA). In contrast with 9- to 12-fold increases in aspartate efflux reported in adult striatum, aspartate efflux increased only slightly (to 174 +/- 69% of baseline; not significant).(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Ann Neuroljournal_title
Annals of neurologyauthors
Silverstein FS,Simpson J,Gordon KEdoi
10.1002/ana.410280408subject
Has Abstractpub_date
1990-10-01 00:00:00pages
516-21issue
4eissn
0364-5134issn
1531-8249journal_volume
28pub_type
杂志文章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::There are no established treatments for patients with acute, severe neurological deficits caused by multiple sclerosis or other inflammatory demyelinating diseases of the central nervous system who fail to recover after treatment with high-dose corticosteroids. We conducted a randomized, sham-controlled, double-masked...
journal_title:Annals of neurology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/1531-8249(199912)46:6<878::aid-ana10>3.0.c
更新日期:1999-12-01 00:00:00
abstract::Creutzfeldt-Jakob disease (CJD) is a rare dementia that is generally found in older people and is caused by unusual infectious pathogens or prions. Using rabbit antisera raised against hamster scrapie prion proteins (HaPrPSc), we identified by immunoblotting human CJD prion proteins (HuPrPCJD) in the brains of 14 pati...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410210611
更新日期:1987-06-01 00:00:00
abstract::The prevalence and titer of serum antibodies to several Epstein-Barr virus (EBV) antigens were compared among patients with multiple sclerosis, healthy siblings of multiple sclerosis patients, patients with other neurological diseases, and healthy non-blood-related subjects. Serum-cerebrospinal fluid (serum-CSF) pairs...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410170412
更新日期:1985-04-01 00:00:00
abstract::In a double-blinded, placebo-controlled, crossover study in seven mitochondrial myopathy patients (MM), we investigated whether lowering of lactate with dichloroacetate (DCA) can improve exercise tolerance and oxidative capacity in MM. DCA lowered plasma lactate at rest and during exercise (from 10.5 +/- 2.0 to 5.0 +/...
journal_title:Annals of neurology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2001-05-01 00:00:00
abstract:OBJECTIVE:Axonal degeneration is a main contributor to disability in progressive neurodegenerative diseases in which oxidative stress is often identified as a pathogenic factor. We aim to demonstrate that antioxidants are able to improve axonal degeneration and locomotor deficits in a mouse model of X-adrenoleukodystro...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.22363
更新日期:2011-07-01 00:00:00
abstract:OBJECTIVE:To investigate whether soluble growth stimulation expressed gene 2 (sST2), a prognostic marker in cardiovascular and inflammatory disorders, is associated with neurological injury after aneurysmal subarachnoid hemorrhage (SAH). METHODS:We studied SAH patients from 2 independent cohorts. Outcome assessments i...
journal_title:Annals of neurology
pub_type: 杂志文章,多中心研究
doi:10.1002/ana.25545
更新日期:2019-09-01 00:00:00
abstract::Parkinsonism occurs in approximately 35 to 40% of patients with Alzheimer's disease (AD) even with little or no neuronal degeneration in the substantia nigra, which in idiopathic Parkinson's disease (PD) results in the severe loss of striatal dopamine transporter sites. It is not known if there is a loss of striatal d...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410370306
更新日期:1995-03-01 00:00:00
abstract::Using the technique of transcranial magnetic stimulation over the motor areas of cortex and recording electromyographic (EMG) responses from the first dorsal interosseous muscle, we measured the excitability of corticocortical inhibitory circuits at rest using a double pulse paradigm, in 11 patients with Parkinson's d...
journal_title:Annals of neurology
pub_type: 临床试验,杂志文章
doi:10.1002/ana.410370208
更新日期:1995-02-01 00:00:00
abstract::Striopallidodentate calcinosis (Fahr's disease) is characterized clinically by seizures, rigidity, and dementia and pathologically by mineral deposition in the basal ganglia, dentate nucleus, and cerebral cortex. Disorders of iron and calcium-phosphate metabolism are thought to play a role in its pathogenesis. We pres...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410260412
更新日期:1989-10-01 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
abstract::The detection of 14-3-3 protein by Western immunoblot is a sensitive and specific cerebrospinal fluid marker of Creutzfeldt-Jakob disease (CJD). We developed a quantitative enzyme-linked immunosorbent assay (ELISA) that reliably detects 14-3-3 in cerebrospinal fluid. In a prospective study of 147 cerebrospinal fluid s...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:
更新日期:2000-09-01 00:00:00
abstract::We studied neuronal activity and its relation to the accumulation of neurofibrillary tangles in Alzheimer's disease (AD) neurons by in situ hybridization to cytochrome oxidase subunit III messenger RNA, a marker of mitochondrial energy metabolism. In AD midtemporal cortex, levels of cytochrome oxidase subunit III mess...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410400310
更新日期:1996-09-01 00:00:00
abstract::Mutations of the ganglioside-induced differentiation-associated protein 1 gene (GDAP1) cause autosomal recessive Charcot-Marie-Tooth disease type 4A. We report four additional families with recessive mutations (487C-->T, Q163X; 359G-->A, R120Q) of GDAP1; Q163X occurred in three unrelated Hispanic families that had the...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10505
更新日期:2003-03-01 00:00:00
abstract:OBJECTIVE:Somnambulism affects up to 4% of adults and constitutes one of the leading causes of sleep-related violence and self-injury. Diagnosing somnambulism with objective instruments is often difficult because episodes rarely occur in the laboratory. Because sleep deprivation can precipitate sleepwalking, we aimed t...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21339
更新日期:2008-04-01 00:00:00
abstract::Clinical electrophysiological studies are important in the evaluation of patients with Guillain-Barré syndrome. Physiological evidence of demyelination occurs in almost all patients with Guillain-Barré syndrome, especially if serial studies are performed. Criteria for demyelination are proposed. Prognostic information...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.410270706
更新日期:1990-01-01 00:00:00
abstract::We report a neurological disease among Cree Indian children in a northern Quebec village. The disease manifests as severe mental retardation, cerebral atrophy with white matter changes and calcifications, and systemic immunological abnormalities. Eleven cases are known in five families. The familial incidence of cases...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410240402
更新日期:1988-10-01 00:00:00
abstract::Postmortem frontal, temporal, and occipital regions of the brain from adult patients who had a diagnosis of Tourette's syndrome were analyzed for neurochemical alterations. In 3 of 4 TS-affected brains, the concentration of adenosine 3',5'-monophosphate (cyclic AMP) was reduced in all brain regions evaluated. This dim...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410270415
更新日期:1990-04-01 00:00:00
abstract::The seemingly unpredictable response to levodopa in patients with Parkinson's disease can be understood as an interaction between several distinct pharmacological effects of levodopa. The most important are a short-duration response with a half-life of minutes to hours and a long-duration response with a half-life of ...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.410390504
更新日期:1996-05-01 00:00:00
abstract:OBJECTIVE:To evaluate the ability of mesenchymal stem cells (MSCs), a subset of adult stem cells from bone marrow, to cure experimental autoimmune encephalomyelitis. METHODS:The outcome of the injection of MSCs, in mice immunized with the peptide 139-151 of the proteolipid protein (PLP), was studied analyzing clinical...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21076
更新日期:2007-03-01 00:00:00
abstract::Intellectual disability is common and is associated with significant morbidity. Until the latter half of the 20th century, there were no efficacious treatments. Following initial breakthroughs associated with newborn screening and metabolic corrections, little progress was made until recently. With improved understand...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.24002
更新日期:2013-09-01 00:00:00
abstract::Using two-color flow cytometric analysis, we studied peripheral blood lymphocyte subsets in 15 patients with human T-cell lymphotropic virus type I-associated myelopathy. The percentage of CD4+ 4B4+ cells (helper inducer T cell) was significantly increased in the patients with the myelopathy, compared with 16 healthy ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410260212
更新日期:1989-08-01 00:00:00
abstract::Striatal particulate preparations, both from rats with lesion-induced striatal dopamine (DA) loss and from some striatal dopamine (DA) loss and from some patients with Parkinson's disease, exhibit increased 3H-neuroleptic binding, which is interpreted to be the mechanism of denervation-induced behavioral supersensitiv...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410190412
更新日期:1986-04-01 00:00:00
abstract::A patient with generalized convulsions noted that seizures were reliably precipitated by mental arithmetic. The interictal electroencephalogram revealed only a mild, diffuse, nonspecific disturbance, but bursts of generalized epileptiform activity with no obvious clinical expression accompanied efforts at mental arith...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410110609
更新日期:1982-06-01 00:00:00
abstract::Brain tissue from normal individuals with incidental Lewy bodies and cell loss in pigmented substantia nigra neurons (asymptomatic Parkinson's disease) and age-matched control subjects without nigral Lewy bodies was examined biochemically. There was no difference in dopamine levels or dopamine turnover in the caudate ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410350107
更新日期:1994-01-01 00:00:00
abstract::We describe a family of 9 affected individuals in three generations with nocturnal oro-facio-brachial partial seizures, secondarily generalized partial seizures, and centro-temporal epileptiform discharges, associated with oral and speech dyspraxia and cognitive impairment. The speech disorder was prominent, but diffe...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410380412
更新日期:1995-10-01 00:00:00
abstract::Two distinct deficits of ocular smooth pursuit could be demonstrated using two types of visual stimulus motion in a patient who had suffered bilateral occipitoparietal lobe infarction. First, in response to constant-velocity (zero acceleration) target motion, smooth pursuit gain (eye velocity/target velocity) was mild...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410170213
更新日期:1985-02-01 00:00:00
abstract::We report the clinical, radiological, and neuropathological features of selective brainstem injury in an asphyxiated term infant. Disproportionate injury to thalamus, basal ganglia, and brainstem with relative sparing of cortex and subcortical white matter is observed occasionally after acute total asphyxia. Although ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410230115
更新日期:1988-01-01 00:00:00
abstract::We examined the expression of Fas antigen and Bcl-2 protein in thymic tissue surgically resected from 10 patients with myasthenia gravis, using immunocytochemical techniques. Histologically, thymic tissues from 7 myasthenia gravis patients showed hyperplasia, while 3 other patients had thymomas. In hyperplastic thymic...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410390414
更新日期:1996-04-01 00:00:00
abstract::We used spin-echo magnetic resonance imaging and proton magnetic resonance spectroscopic imaging in 8 patients with probable Alzheimer's disease and in 10 age-matched elderly control subjects to assess the effects of Alzheimer's disease on the brain. On magnetic resonance images the patients showed significant ventric...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410360110
更新日期:1994-07-01 00:00:00