Results 41 to 50 of about 25,774 (237)

A Depolarizing Leak in Sodium Bicarbonate Cotransporter NBCe1 Causes Brain Edema

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives SLC4A4 encodes electrogenic sodium bicarbonate cotransporter NBCe1, prominently expressed in kidney and brain. Recessive loss‐of‐function variants in SLC4A4 cause proximal renal tubular acidosis, no brain edema. In the brain, NBCe1 is expressed by astrocytes, where it regulates pH and mediates astrocyte volume changes.
Quinty Bisseling   +16 more
wiley   +1 more source

Repeated closed head injury (CHI) induced chronic axonal degeneration in the pyramidal tract and cerebellar crusiforms.

open access: yes, 2016
Argyrophilic axons in the pyramidal tract (A-F) and cerebellar crusiforms (I-N) were labeled using silver stain. Scale bars: 500μm A-C, I-K; 250μm D-F, L-N).
Kathryn E. Saatman (427644)   +3 more
core   +1 more source

Sinais de Babinski e Chaddock sem disfunção piramidal aparente Babinski and Chaddock signs without apparent pyramidal disfunction

open access: yesArquivos de Neuro-Psiquiatria, 2005
OBJETIVO: Verificar a presença dos sinais de Babinski e de Chaddock em cem pacientes sem história ou indícios clínicos de comprometimento da via piramidal, internados no Serviço de Clínica Médica do Hospital Universitário Clementino Fraga Filho da ...
Péricles Maranhão-Filho   +2 more
doaj   +1 more source

SPG4 and Dementia: Expanding the Clinical Spectrum

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Hereditary spastic paraplegia (HSP) is a group of disorders characterized by progressive spasticity and lower limb weakness, with mutations in SPG4/SPAST being the most common cause. Detailed studies and clinical and molecular comparisons across different populations are missing.
Emanuele Panza   +19 more
wiley   +1 more source

New Corticopontine Connections in the Primate Brain: Contralateral Projections From the Arm/Hand Area of the Precentral Motor Region

open access: yesFrontiers in Neuroanatomy, 2018
The ipsilateral corticopontine projection (iCPP) represents a massive descending axon system terminating in the pontine nuclei (PN). In the primate, this projection is well known for its dominant influence on contralateral upper limb movements through ...
Robert J. Morecraft   +6 more
doaj   +1 more source

Parallel processing of working memory and temporal information by distinct types of cortical projection neurons

open access: yesNature Communications, 2021
Intratelencephalic and pyramidal tract neurons are two major types of cortical excitatory neurons that project to cortical and subcortical structures.
Jung Won Bae   +6 more
doaj   +1 more source

Association Between Motor Pathway Damage and Motor Deficit in Upper and Lower Limb in People With MS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Corticospinal tract damage is common in people with MS, but the degree of clinical symptoms varies. We hypothesize that corticospinal tract lesions are more extensive and severe in people with MS with motor impairments in both upper and lower limbs.
Mathilde Liffran   +13 more
wiley   +1 more source

Very early demonstration of secondary pyramidal tract degeneration by computed tomography.

open access: yes, 1994
While magnetic resonance imaging has revealed progressive changes in the pyramidal tract in accordance with histopathologic stages of wallerian degeneration secondary to a supratentorial lesion, computed tomography (CT) has only demonstrated a shrinkage ...
S Kazui, Y Kuriyama, T Sawada, S Imakita
core   +1 more source

Distinct populations of cortical pyramidal neurons mediate drug reward and aversion

open access: yesNature Communications, 2021
The anterior cingulate plays a role in addiction, but studies have not examined the role of its two types of glutamatergic projection neurons, pyramidal tract (PT) and intratelencephalic (IT).
A. F. Garcia   +4 more
doaj   +1 more source

Subclinical Optic Nerve Involvement in Radiologically Isolated Syndrome: Multimodal Detection and Diagnostic Impact

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We aimed to determine the frequency of subclinical optic nerve (ON) lesions using MRI, optical coherence tomography (OCT), and visual evoked potentials (VEP) in radiologically isolated syndrome (RIS), and to assess their diagnostic and prognostic significance.
Christine Lebrun‐Frenay   +13 more
wiley   +1 more source

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