Abstract:
:The pharmacokinetics of levodopa (L-dopa) in plasma and in cisternal and lumbar cerebrospinal fluid (CSF) were studied in Rhesus monkeys that were given 2- to 3-hour intravenous infusions of L-dopa. Steady-state L-dopa concentrations in cisternal CSF correlated well with plasma levels, and yielded a CSF:plasma ratio of 0.17. The disappearance of L-dopa from plasma and cisternal CSF compartments fits an open, two-compartment pharmacokinetic model. Although slower, the distribution and elimination half-lives for L-dopa from cisternal CSF (8.9 and 49.2 minutes, respectively) were of a similar magnitude to those from plasma (4.9 and 33.2 minutes, respectively). If cisternal CSF reflects brain extracellular fluid, then plasma pharmacokinetics of L-dopa are a reasonable approximation of those in the brain. In contrast to cisternal CSF, the disappearance of L-dopa from lumbar CSF fits an open, one-compartment model with an elimination half-life of 100 minutes. This indicates that the lumbar CSF compartment is unsuitable for investigation of the pharmacokinetics of L-dopa in the brain.
journal_name
Ann Neuroljournal_title
Annals of neurologyauthors
Hammerstad JP,Woodward WR,Gliessman P,Boucher B,Nutt JGdoi
10.1002/ana.410270507subject
Has Abstractpub_date
1990-05-01 00:00:00pages
495-9issue
5eissn
0364-5134issn
1531-8249journal_volume
27pub_type
杂志文章abstract::The developmental sequence of sleep cycles has been found to be a useful index of central nervous system maturation in premature infants. To determine the effects of severe reversible stress on the maturation of sleep cycles, 6- to 8-hour sleep studies were done on 10 premature infants with severe hyaline membrane dis...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410060610
更新日期:1979-12-01 00:00:00
abstract::Increased glutamatergic transmission in the basal ganglia is implicated in the pathophysiology of Parkinson's disease. However, the mechanisms by which activation of glutamate receptors produce parkinsonism are unknown. Therefore, we examined whether the glutamate agonists N-methyl-D-aspartate (NMDA), alpha-amino-3-hy...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410340413
更新日期:1993-10-01 00:00:00
abstract::Traumatic coma was produced in 45 monkeys by accelerating the head without impact in one of three directions. The duration of coma, degree of neurological impairment, and amount of diffuse axonal injury (DAI) in the brain were directly related to the amount of coronal head motion used. Coma of less than 15 minutes (co...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410120611
更新日期:1982-12-01 00:00:00
abstract::There is increasing interest in the potential of dopamine agonists to provide a neuroprotective effect and to alter the natural course of levodopa-treated Parkinson's disease (PD). Theoretically, such a protective effect might derive from (a) a levodopa sparing effect, (b) stimulation dopamine autoreceptors resulting ...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.410440725
更新日期:1998-09-01 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::We prepared RNA probes from cloned segments of human and murine enteroviruses (EVs) for in situ hybridization of skeletal muscle biopsies from patients with dermatomyositis (DM), polymyositis, other inflammatory myopathies, and noninflammatory muscle diseases, and from normal control subjects. A probe derived from The...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410260204
更新日期:1989-08-01 00:00:00
abstract::The prevalence of migraine is much greater in female than male individuals. Cortical spreading depression (CSD) is thought to be a fundamental mechanism of migraine, and CSD in rodents is used as a model for migraine. We used optical intrinsic signal imaging and electrophysiological techniques to investigate CSD in C5...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21138
更新日期:2007-06-01 00:00:00
abstract::A series of nine related aromatic monocarboxylic acids (ACAs) previously shown to inhibit muscle membrane chloride conductance (GCl) selectively in the rat were studied for their ability to produce myotonia. All nine induced characteristic repetitive electrical activity and delayed relaxation in isolated muscle, altho...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410040411
更新日期:1978-10-01 00:00:00
abstract::Existing and emerging viral central nervous system (CNS) infections are major sources of human morbidity and mortality. Treatments of proven efficacy are currently limited predominantly to herpesviruses and human immunodeficiency virus (HIV). Development of new therapies has been hampered by the lack of appropriate an...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.23988
更新日期:2013-09-01 00:00:00
abstract::The worldwide epidemiology of Creutzfeldt-Jakob disease (CJD) is presented from an analysis of 1,435 patients. In the United States, the average annual mortality rate is at least 0.26 deaths per million. Temporal-spatial clustering of cases was not found in the United States, but reports from other countries indicate ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410050212
更新日期:1979-02-01 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::We reviewed the records of 160 consecutive patients with glioblastoma and anaplastic astrocytoma to evaluate the long-term consequences of radiation therapy and chemotherapy. We defined long-term survivors as those patients with glioblastoma or anaplastic astrocytoma who lived at least 100% longer than median survival...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410280614
更新日期:1990-12-01 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::Biallelic DNAJC12 mutations were described in children with hyperphenylalaninemia, neurodevelopmental delay, and dystonia. We identified DNAJC12 homozygous null variants (c.187A>T;p.K63* and c.79-2A>G;p.V27Wfs*14) in two kindreds with early-onset parkinsonism. Both probands had mild intellectual disability, mild nonpr...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.25048
更新日期:2017-10-01 00:00:00
abstract::Effective surgical treatment of patients with intractable complex partial seizures depends on accurate preoperative seizure focus localization. We evaluated seizure localization with interictal and immediate postictal single photon emission computed tomographic images of cerebral perfusion using technetium-99m-hexamet...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410260512
更新日期:1989-11-01 00:00:00
abstract::A patient is described with the dermatological features of blue rubber bleb nevus syndrome (BRBNS), focal seizures, and lateralized neurological signs. CAT scan demonstrated a nonenhanced density in the region of the vein of Galen. Neuropathological examination showed that this density was a clot within a vein of Gale...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410030522
更新日期:1978-05-01 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::B cells have long played an enigmatic role in the scenario of multiple sclerosis pathogenesis. This review summarizes recent progress in our understanding of B-cell trafficking, survival, and differentiation in the central nervous system (CNS). We propose four possible routes of intrathecal immunoglobulin-producing ce...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.20890
更新日期:2006-06-01 00:00:00
abstract::We studied sleep patterns for three nights in 10 subjects with moderate to severe progressive supranuclear palsy and correlated the findings with disease severity using quantitative measures of motor, cognitive, and eye movement impairment. All subjects had severe insomnia, spending 2 to 6 hours awake per night; the m...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410250609
更新日期:1989-06-01 00:00:00
abstract:OBJECTIVE:Ischemic injury of axons is a feature of periventricular leukomalacia, a pathological correlate of cerebral palsy. Recent evidence suggests that axons are damaged before they receive the first layer of compact myelin. Here we examine the cellular mechanisms underlying ischemic-type injury of premyelinated cen...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21767
更新日期:2009-11-01 00:00:00
abstract::Latency measurements between three potentials (waves I, III, and IV/V) of the human brainstem auditory response can allow early detection of certain posterior fossa lesions. The diagnostic use of these interwave latencies requires knowledge of what factors may prolong them in the absence of disease. Hypothermia appear...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410030416
更新日期:1978-04-01 00:00:00
abstract::An artificial system is described in which anti-dinitrophenyl (DNP) antibody attaches to hapten-conjugated human brain tissue. Treatment of this material with acetic acid at pH 2.5 to 3.0 for 90 seconds followed by immediate neutralization results in dissociation of antibody from the hapten-conjugated brain. Less than...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410030507
更新日期:1978-05-01 00:00:00
abstract::We previously reported a marked increase of a 20,000 molecular weight (MW) protein, P20, in some neuronal fractions and whole cortical homogenates isolated from affected cortex in Alzheimer disease; P20 comigrated electrophoretically with an unidentified, major 20,000 MW protein present in human neurofilament (NF) fra...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410100505
更新日期:1981-11-01 00:00:00
abstract::There is currently no effective pharmacological treatment for amyotrophic lateral sclerosis (ALS). Because evidence suggests that multiple pathways may contribute to ALS pathogenesis, we tested in a mouse model of ALS (SOD1(G37R) mice) a combination approach consisting of three drugs for distinct targets in the comple...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10500
更新日期:2003-04-01 00:00:00
abstract::We performed a population-based clinical and molecular genetic study of spinocerebellar ataxia type 6 (SCA6) in the northeast of England. The minimum point prevalence of SCA6 was 1.59 in 100,000 (95% confidence interval [CI], 1.04-2.14), and the number of individuals who either had SCA6 or are at risk of developing SC...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20110
更新日期:2004-05-01 00:00:00
abstract::The purpose of this study was to explore the feasibility of obtaining magnetic resonance-measured cerebral metabolic rate of oxygen utilization (MR-CMRO(2)) in acute ischemic stroke patients. Seven stroke patients were serially imaged: 4.5 +/- 0.9 hours (tp1), 3 to 5 days (tp2), and 1 to 3 months (tp3) after symptom o...
journal_title:Annals of neurology
pub_type: 临床试验,杂志文章
doi:10.1002/ana.10433
更新日期:2003-02-01 00:00:00
abstract:OBJECTIVE:We utilized the amyloid imaging ligand Pittsburgh Compound B (PiB) to determine the presence of Alzheimer's disease (AD) pathology in different mild cognitive impairment (MCI) subtypes and to relate increased PiB binding to other markers of early AD and longitudinal outcome. METHODS:Twenty-six patients with ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21598
更新日期:2009-05-01 00:00:00
abstract::Patterns of cerebral metabolic intercorrelations were compared in the resting state in 15 healthy young men (ages 20 to 32 years) and 15 healthy elderly men (ages 64 to 83 years). Controlling for whole-brain glucose metabolism, partial correlation coefficients were determined between pairs of regional cerebral metabol...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410190111
更新日期:1986-01-01 00:00:00
abstract:OBJECTIVE:Neonatal white matter injury (NWMI) is a lesion found in preterm infants that can lead to cerebral palsy. Although antagonists of bone morphogenetic protein (BMP) signaling, such as Noggin, promote oligodendrocyte precursor cell (OPC) production after hypoxic-ischemic (HI) injury, the downstream functional ta...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24907
更新日期:2017-04-01 00:00:00
abstract:OBJECTIVE:To study antibody-independent contributions of B cells to inflammatory disease activity, and the immune consequences of B-cell depletion with rituximab, in patients with multiple sclerosis (MS). METHODS:B-Cell effector-cytokine responses were compared between MS patients and matched controls using a 3-signal...
journal_title:Annals of neurology
pub_type: 杂志文章,随机对照试验
doi:10.1002/ana.21939
更新日期:2010-04-01 00:00:00