Abstract:
OBJECTIVE:Transient high-frequency oscillations (HFOs; 150-600Hz) in local field potentials generated by human hippocampal and parahippocampal areas have been related to both physiological and pathological processes. The cellular basis and effects of normal and abnormal forms of HFOs have been controversial. This lack of agreement is clinically significant, because HFOs may be good markers of epileptogenic areas. Better defining the neuronal correlate of specific HFO frequency bands could improve electroencephalographic analyses made before epilepsy surgery. METHODS:Here, we recorded HFOs in slices of the subiculum prepared from human hippocampal tissue resected for treatment of pharmacoresistant epilepsy. With combined intra- or juxtacellular and extracellular recordings, we examined the cellular correlates of interictal and ictal HFO events. RESULTS:HFOs occurred spontaneously in extracellular field potentials during interictal discharges (IIDs) and also during pharmacologically induced preictal discharges (PIDs) preceding ictal-like events. Many of these events included frequencies >250Hz and so might be considered pathological, but a significant proportion were spectrally similar to physiological ripples (150-250Hz). We found that IID ripples were associated with rhythmic γ-aminobutyric acidergic and glutamatergic synaptic potentials with moderate neuronal firing. In contrast, PID ripples were associated with depolarizing synaptic inputs frequently reaching the threshold for bursting in most pyramidal cells. INTERPRETATION:Our data suggest that IID and PID ripple-like oscillations (150-250Hz) in human epileptic hippocampus are associated with 2 distinct population activities that rely on different cellular and synaptic mechanisms. Thus, the ripple band could not help to disambiguate the underlying cellular processes.
journal_name
Ann Neuroljournal_title
Annals of neurologyauthors
Alvarado-Rojas C,Huberfeld G,Baulac M,Clemenceau S,Charpier S,Miles R,de la Prida LM,Le Van Quyen Mdoi
10.1002/ana.24324subject
Has Abstractpub_date
2015-02-01 00:00:00pages
281-90issue
2eissn
0364-5134issn
1531-8249journal_volume
77pub_type
杂志文章abstract:OBJECTIVE:Low vitamin D status at birth may be associated with risk of adult onset multiple sclerosis, but this link has not been studied directly. We assessed the relation between neonatal vitamin D concentrations, measured in stored blood samples, and risk of multiple sclerosis. METHODS:This was a population-based c...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24210
更新日期:2014-09-01 00:00:00
abstract::To understand the pathogenesis of human immunodeficiency virus-induced neuropathology, it is critical to know the dynamics of viral replication in the central nervous system. Viral decay kinetics were mathematically analyzed from multiple serial specimens of ventricular cerebrospinal fluid and plasma during antiretrov...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:
更新日期:2000-06-01 00:00:00
abstract::This study quantitatively explored the dendritic/spine extent of supragranular pyramidal neurons across several cortical areas in two adult male subjects who had undergone a callosotomy several decades before death. In all cortical areas, there were numerous atypical, supragranular pyramidal neurons with elongated "ta...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10620
更新日期:2003-07-01 00:00:00
abstract::Isolated vertigo with horizontal positional nystagmus as an impending sign of a central lesion has rarely been reported. Here we present neuro-otologic findings of patients with these clinical signs. Lesion overlays from 6 patients with ageotropic positional nystagmus revealed that the nodulus and vermis are common ar...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24292
更新日期:2014-12-01 00:00:00
abstract::Human prion diseases can occur as an idiopathic disorder (sporadic Creutzfeldt-Jakob disease) or can be acquired, as is the case for variant Creutzfeldt-Jakob disease. These disorders are characterized by the accumulation of a protease-resistant form of the host-encoded prion protein termed PrP(Sc) in the brains of af...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20127
更新日期:2004-06-01 00:00:00
abstract::A subset of human immunodeficiency virus (HIV)-infected patients develop persistent CD8 hyperlymphocytosis and a Sjogren's syndrome-like syndrome associated with multivisceral CD8 T-cell infiltration, known as the diffuse infiltrative lymphocytosis syndrome (DILS). Patients with DILS tend to have higher CD4 cell count...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410410406
更新日期:1997-04-01 00:00:00
abstract:OBJECTIVE:To develop and validate a questionnaire for assessing cutaneous allodynia (CA), and to estimate the prevalence and severity of CA in the migraine population. METHODS:Migraineurs (n = 11,388) completed the Allodynia Symptom Checklist, assessing the frequency of allodynia symptoms during headache. Response opt...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21211
更新日期:2008-02-01 00:00:00
abstract::Patients with senile dementia of the Alzheimer type frequently have difficulty performing visual tasks. These difficulties may be due, at least partially, to degenerative changes in both the primary visual pathway and the visual association areas. To determine whether retinal ganglion cell dysfunction contributes to v...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410260208
更新日期:1989-08-01 00:00:00
abstract:OBJECTIVE:The Epi4K Consortium recently identified 4 de novo mutations in the γ-aminobutyric acid type A (GABAA ) receptor β3 subunit gene GABRB3 and 1 in the β1 subunit gene GABRB1 in children with one of the epileptic encephalopathies (EEs) Lennox-Gastaut syndrome (LGS) and infantile spasms (IS). Because the etiology...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.24631
更新日期:2016-05-01 00:00:00
abstract::In an attempt to define prognostic indicators of intelligence and seizures in the hemiparetic cerebral palsy population, birth histories, electroencephalograms, and computerized tomographic (CT) scans were reviewed in 52 children with hemiparetic cerebral palsy. Cases were excluded when the hemiparesis might have been...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410090407
更新日期:1981-04-01 00:00:00
abstract::Ten patients developed a subacute lower motor neuron syndrome as a remote effect of Hodgkin's disease or other lymphoma. The illness usually followed a benign course independent of the activity of the underlying neoplasm. Seven of the patients improved spontaneously, and 3 became neurologically normal. Two patients di...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410050310
更新日期:1979-03-01 00:00:00
abstract::Pathological evidence suggests that alterations of the blood-brain barrier (BBB) may occur in association with human immunodeficiency virus (HIV) dementia (HIVD). Increased BBB permeability could contribute to the development of dementia by facilitating the entry of activated and infected monocytes, as well as potenti...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/1531-8249(199909)46:3<391::aid-ana15>3.0.c
更新日期:1999-09-01 00:00:00
abstract::Plasma exchange (PE) is the standard treatment in Guillain-Barré syndrome (GBS) patients who have lost the ability to walk. The effect of exchanges before this stage and the optimal number of exchanges for the other patients are still unknown. We randomized 556 GBS patients according to severity and number of exchange...
journal_title:Annals of neurology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1002/ana.410410304
更新日期:1997-03-01 00:00:00
abstract::In aphasia due to stroke, language-related activity shifts not only to undamaged cortex within the dominant hemisphere but also toward right-sided areas homotopical to the left-sided lesion. We examined whether a rightward shift takes place in primary progressive aphasia (PPA). Nineteen PPA patients participated, 19 h...
journal_title:Annals of neurology
pub_type: 临床试验,杂志文章
doi:10.1002/ana.20588
更新日期:2005-09-01 00:00:00
abstract::Myelination is a central nervous system (CNS) process wherein oligodendrocyte-axon interactions lead to the establishment of myelin sheaths that stabilize, protect, and electrically insulate axons. In inflammatory demyelinating diseases such as multiple sclerosis (MS), the degeneration and eventual loss of functional ...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.22415
更新日期:2011-04-01 00:00:00
abstract::To define the molecular mechanisms underlying amphetamine (AMPH) neurotoxicity, primary cultures of dopaminergic neurons were examined for drug-induced changes in dopamine (DA) distribution, oxidative stress, protein damage, and cell death. As in earlier studies, AMPH rapidly redistributed vesicular DA to the cytoplas...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/1531-8249(200101)49:1<79::aid-ana11>3.0.co
更新日期:2001-01-01 00:00:00
abstract:OBJECTIVE:Though effective anti-human immunodeficiency virus (HIV) therapies are now available, they have variable penetration into the brain. We therefore aimed to assess changes over calendar time in the risk for HIV-associated dementia (HIV-D), and factors associated with HIV-D risk. METHODS:Using Concerted Action ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21225
更新日期:2008-02-01 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::The possibility of detecting acute hypoxic-ischemic brain lesions by prenatal magnetic resonance imaging or ultrasound is low. We present a case of a fetus with a vein of Galen arteriovenous malformation in whom prenatal diffusion-weighted magnetic resonance imaging at 33 weeks of gestation clearly detected cerebral a...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.10255
更新日期:2002-08-01 00:00:00
abstract:OBJECTIVE:Degeneration of chronically demyelinated axons is a major cause of irreversible neurological decline in the human central nervous system disease, multiple sclerosis (MS). Although the molecular mechanisms responsible for this axonal degeneration remain to be elucidated, dysfunction of axonal Na+/K+ ATPase is ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21381
更新日期:2008-04-01 00:00:00
abstract::Electroencephalographic (EEG) and evoked potential data were recorded during behavioral testing from 8 dyslexic and 10 normal boys aged 9 to 11 years. Topographic mapping of their brain electrical activity revealed four discrete regions of difference between the two groups involving both hemispheres, left more than ri...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410070505
更新日期:1980-05-01 00:00:00
abstract::The cervical nerves may play a significant role in primary headache disorders. We reviewed the patterns of pain evoked by stimulation of the first 3 cervical nerves (C1-C3) in 10 patients with chronic occipital pain, 6 of whom also had migraine. Stimulation at the C1 level evoked periorbital and frontal pain in 6 of 6...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.23869
更新日期:2013-07-01 00:00:00
abstract:OBJECTIVE:Migraine with aura is a severe debilitating neurological disorder with few relatively specific therapeutic options. METHODS:We used amiloride, a blocker of epithelial sodium channels, to evaluate its pharmacological potential and explored the biology of a potential mechanism of action in well-established exp...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.23653
更新日期:2012-10-01 00:00:00
abstract::Juvenile myoclonic epilepsy is a common type of idiopathic generalized epilepsy characterized by myoclonic, generalized tonic-clonic, and in 30% of patients, absence seizures. We studied a three-generation pedigree of 33 members, 10 of whom were clinically affected with juvenile myoclonic epilepsy or presented with su...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410390208
更新日期:1996-02-01 00:00:00
abstract::Progressive multifocal leukoencephalopathy is the most common clinical presentation of JC virus (JCV)-associated central nervous system (CNS) disease and has emerged as a major safety concern in multiple sclerosis patients treated with the monoclonal antibody natalizumab. Here we report clinical, radiological, and his...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.23973
更新日期:2013-10-01 00:00:00
abstract::Axonal loss is thought to be a likely cause of persistent disability after a multiple sclerosis relapse; therefore, noninvasive in vivo markers specific for axonal loss are needed. We used optic neuritis as a model of multiple sclerosis relapse to quantify axonal loss of the retinal nerve fiber layer (RNFL) and second...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.20575
更新日期:2005-09-01 00:00:00
abstract::Alzheimer's disease (AD) and Parkinson's disease (PD) are generally considered to be separate and distinct disease entities. However, a considerable amount of evidence demonstrates that these disorders share common clinical and neuropathologic features and that overlap between the two conditions is extensive. For exam...
journal_title:Annals of neurology
pub_type: 杂志文章,评审
doi:10.1002/ana.410440705
更新日期:1998-09-01 00:00:00
abstract::The rate of local cerebral glucose utilization was determined for quantification of energy metabolism in macrostructures of the sensorimotor system during propagation of focal motor seizures in 24-month-old monkeys. The rate was measured in 4 control animals and in 4 monkeys each with seizures limited to the contralat...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410070304
更新日期:1980-03-01 00:00:00
abstract::A patient developed conjugate horizontal eye deviation to the side opposite a large frontal-perisylvian hemorrhage from a ruptured aneurysm. Autopsy examination confirmed the hemispheric locus of the hemorrhage and failed to disclose any lesion of the brainstem or thalamus to explain the "wrong-way" eye deviation. ...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.410090115
更新日期:1981-01-01 00:00:00
abstract:OBJECTIVE:Right-handedness and left-sided language lateralization is an unresolved mystery with unknown cause/effect relations. Most studies suggest that the language lateralization is related to a fundamental brain asymmetry: right-handedness may be secondary. We analyzed the possibility of an opposite cause/effect re...
journal_title:Annals of neurology
pub_type: 杂志文章
doi:10.1002/ana.21538
更新日期:2009-01-01 00:00:00