Abstract:
:The effect of focal ischemia on tissue pH was studied at various times up to 6 hours after permanent middle cerebral artery occlusion in rats. Tissue pH was imaged by using umbelliferone fluorescence and correlated with cerebral blood flow, ATP content, and recordings of the steady potential. Circumscribed foci of allalosis (pH 7.32+/-0.11) were detected with increasing frequency in penumbral regions having near-to-normal ATP concentrations and cerebral blood flow values between 20% and 40% of control. Both the infarct core, defined by ATP loss and cerebral blood flow values of less than 20% of control, and the inner peri-infarct rim were consistently acidic (pH 6.03+/-0.36 and 6.53+/-0.24, respectively). Treatment with the glutamate antagonist dizocilpine (MK-801) suppressed negative shifts of the steady potential and reduced significantly the occurrence of alkalosis observed in 90% of untreated but only in 44% of treated animals. Penumbral alkalosis appeared to be a time-dependent event occurring 30 to 60 minutes after the passage of peri-infarct depolarizations. The diversity of penumbral pH changes reflects the local disturbance of pH regulation and, possibly, the differential fate of penumbral subareas.
journal_name
Ann Neuroljournal_title
Annals of neurologyauthors
Back T,Hoehn M,Mies G,Busch E,Schmitz B,Kohno K,Hossmann KAkeywords:
subject
Has Abstractpub_date
2000-04-01 00:00:00pages
485-92issue
4eissn
0364-5134issn
1531-8249journal_volume
47pub_type
杂志文章abstract::We present a patient with hemidystonia and an abnormality of the contralateral basal ganglion seen only with positron emission tomography. A 50-year-old sinistral man suffered minor trauma to the right side of his head and neck. Within 20 minutes he developed paroxysmal intermittent dystonic posturing of his right fac...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410150303
更新日期:1984-03-01 00:00:00
abstract::Intracranial abscesses are uncommon in the newborn. Observation of 2 infants and a review of the literature reveal that the offending organism was a Citrobacter in 12 of the 16 documented cases. In the Neonatal Meningitis Cooperative Study this organism was responsible for meningitis in only 4%. However, an analysis o...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410080308
更新日期:1980-09-01 00:00:00
abstract:OBJECTIVE:The polyglutamine diseases, including Huntington's disease (HD) and multiple spinocerebellar ataxias (SCAs), are among the commonest hereditary neurodegenerative diseases. They are caused by expanded CAG tracts, encoding glutamine, in different genes. Longer CAG repeat tracts are associated with earlier ages ...
journal_title:Annals of neurology
pub_type: 杂志文章,多中心研究
doi:10.1002/ana.24656
更新日期:2016-06-01 00:00:00
abstract::To establish phenotype-genotype correlations in early-onset parkinsonism, we have compared the phenotype of a large series of 146 patients with and 250 patients without parkin mutations. Although no single sign distinguished the groups, patients with mutations had significantly earlier and more symmetrical onset, dyst...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10613
更新日期:2003-08-01 00:00:00
abstract::A 64-year-old man developed lethargy and aphasia immediately following cerebral arteriography with iothalamate meglumine. An electroencephalogram showed continuous epileptiform activity. The patient was treated with intravenous phenytoin with complete resolution of clinical symptoms and electroencephalographic epilept...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410250217
更新日期:1989-02-01 00:00:00
abstract:OBJECTIVE:Therapeutic drug monitoring (TDM) of antiepileptic drugs (AEDs) is widely established for older generation AEDs, whereas there is limited evidence about newer AEDs. Our aim is to assess the benefit of TDM of newer generation AEDs in epilepsy. METHODS:We performed a randomized, controlled trial comparing syst...
journal_title:Annals of neurology
pub_type: 杂志文章,随机对照试验
doi:10.1002/ana.25641
更新日期:2020-01-01 00:00:00
abstract::We report on a 28-year-old man with long-standing intractable complex partial and secondary generalized seizures, whose magnetic resonance imaging scans 4 years apart documented progressive decrease in the left hippocampal volume. Left anterior temporal lobectomy with amygdalohippocampectomy rendered the patient seizu...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:
更新日期:1999-04-01 00:00:00
abstract:OBJECTIVE:Determine the probability of attaining complete remission in children with nonsyndromic epilepsy (NSE) over the course of ≥10 years from initial diagnosis; identify early predictors of complete remission; and assess the risk of relapse after achieving complete remission. METHODS:In a prospective community-ba...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.22461
更新日期:2011-10-01 00:00:00
abstract:OBJECTIVE:The primary imaging modalities used to select patients for endovascular thrombectomy (EVT) are noncontrast computed tomography (CT) and CT perfusion (CTP). However, their relative utility is uncertain. We prospectively assessed CT and CTP concordance/discordance and correlated the imaging profiles on both wit...
journal_title:Annals of neurology
pub_type: 杂志文章,多中心研究
doi:10.1002/ana.25669
更新日期:2020-03-01 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::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:OBJECTIVE:Chronic, low-dose exposure to pesticides is suspected to increase the risk for Parkinson's disease (PD), but data are inconclusive. METHODS:We prospectively examined whether individuals exposed to pesticides have higher risk for PD than those not exposed. The study population comprised participants in the Ca...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20904
更新日期:2006-08-01 00:00:00
abstract::Huntington's disease is a genetic disorder that causes motor dysfunction, personality changes, dementia, and premature death. There is currently no effective therapy. Several transgenic models of Huntington's disease are available, the most widely used of which is the R6/2 mouse, because of its rapid disease progressi...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10094
更新日期:2002-02-01 00:00:00
abstract::Between 36 and 44 weeks after conception, telencephalic white matter in the newborn appears to be particularly vulnerable to insults that result in morphological disturbances. Available evidence indicates that this disorder (or group of disorders), named acquired perinatal leukoencephalopathy, reflects a decrease in b...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410160102
更新日期:1984-07-01 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::Vasospasm may be one of the causes of amaurosis fugax. A patient is reported who daily experienced multiple brief episodes of amaurosis fugax. The absence of physical, laboratory, or radiographic evidence for thromboembolism, hemodynamic compromise, or vasculitis, suggested that the amaurosis might be caused by vasosp...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410300317
更新日期:1991-09-01 00:00:00
abstract::A patient with an intracranial hemorrhage showed differential impairment among arithmetic types (impaired in multiplication but not in subtraction). A functional magnetic resonance imaging (fMRI) experiment using normal volunteers also revealed a differential activation between the two arithmetic types. The fMRI resul...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:
更新日期:2000-10-01 00:00:00
abstract::A 13-year-old boy with imipramine overdose developed seizures, respiratory arrest, and coma. Abnormalities of oculovestibular reflexes, electroencephalograms, and brainstem auditory evoked potentials were monitored in relation to measurements of drug levels. An alpha-coma electroencephalographic pattern evolved into o...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410140516
更新日期:1983-11-01 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
abstract::A prospective study of 162 patients with adult-onset chronic epilepsy revealed 4 in whom computed tomographic scanning was the only diagnostic test that detected the presence of a surgically correctable cerebral lesion. These patients had suffered from seizures for 1 to 14 years and at the time of operation demonstrat...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410070411
更新日期:1980-04-01 00:00:00
abstract::Adult GM2 gangliosidosis is a rare disorder that often presents with both neurological and psychiatric syndromes. Effective treatment of the psychotic and affective symptoms associated with this disorder has been complicated by poor treatment response and the concern that many psychotropic agents may worsen the underl...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.410310320
更新日期:1992-03-01 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:OBJECTIVE:Chronic seizures in women can have adverse effects on reproductive function, such as polycystic ovarian syndrome, but it has been difficult to dissociate the effects of epilepsy from the role of antiepileptic drugs. To distinguish the effects of chronic seizures from medication, we used the laboratory rat, be...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21518
更新日期:2008-12-01 00:00:00
abstract::An inverse relationship between the cerebrospinal fluid (CSF) opening pressure and the corresponding protein value was found for patients with idiopathic pseudotumor cerebri who underwent their first lumbar puncture (LP) prior to the initiation of therapy. This relationship provides evidence for a pressure-dependent b...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410190116
更新日期:1986-01-01 00:00:00
abstract::Mutations of copper,zinc-superoxide dismutase (cu,zn SOD) are found in patients with a familial form of amyotrophic lateral sclerosis. When expressed in transgenic mice, mutant human cu,zn SOD causes progressive loss of motor neurons with consequent paralysis and death. Expression profiling of gene expression in SOD1-...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.1252
更新日期:2001-12-01 00:00:00
abstract::Neurofilaments, assembled from NF-L (68 kd), NF-M (95 kd), and NF-H (115 kd), are the most abundant structural components in large myelinated axons, particularly those of motor neurons. Aberrant neurofilament accumulation in cell bodies and axons of motor neurons is a prominent pathological feature of several motor ne...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410400410
更新日期:1996-10-01 00:00:00
abstract::We compared the accuracy of saccades made to seen or remembered visual targets in 3 patients with saccadic dysmetria due to cerebellar lesions. Saccadic dysmetria was worse for saccades to remembered targets and for saccades to flashed targets visible for only 150 msec (i.e., invisible at the time of saccade). Further...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410350117
更新日期:1994-01-01 00:00:00
abstract::It has been known for some time that patients with Parkinson's disease (PD) have difficulty executing simultaneous motor acts, yet the pathophysiology underlying this impairment remains uncertain. We examined the possibility that these dual-task deficits stem from defective sensorimotor mechanisms producing interferen...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410310110
更新日期:1992-01-01 00:00:00
abstract::We report on a 12-year-old girl with a severe subacute to chronic bifrontal leukoencephalopathy. By clinical, biochemical, radiological, and neuropathological criteria, a diagnosis of inflammatory myelinoclastic diffuse sclerosis was reached. This is the third fully documented case. ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410230422
更新日期:1988-04-01 00:00:00
abstract::Cerebral blood flow (CBF) velocity is decreased in patients with Alzheimer's disease. It is being debated whether this reflects diminished demand because of advanced neurodegeneration or that cerebral hypoperfusion contributes to dementia. We examined the relation of CBF velocity as measured with transcranial Doppler ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20493
更新日期:2005-06-01 00:00:00