Central chemosensitivity is ascribed to three areas on the ventral medullary surface. The discharge frequency of neurons observed in these areas depends upon pH. Other neurons within the same areas do not change their frequency during acidosis or alkalosis. Histologically the areas are characterized by superficial nerve cells.
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Ann Neurol
January 2025
Department of Nuclear Medicine, Xiangya Hospital, Central South University, Changsha, People's Republic of China.
Objective: The objective of this study was to delineate synaptic density alterations in multiple system atrophy (MSA) and explore its potential role as a biomarker for MSA diagnosis and disease severity monitoring using [F]SynVesT-1 positron emission tomography / computed tomography (PET CT).
Methods: In this prospective study, 60 patients with MSA (30 patients with MSA-parkinsonian [MSA-P] subtype and 30 patients with MSA-cerebellar [MSA-C] subtype), 30 patients with Parkinson's disease (PD), and 30 age-matched healthy controls (HCs) underwent [F]SynVesT-1 PET/CT for synaptic density assessment. Visual, voxel, and volumetric region of interest (VOI) analyses were used to elucidate synaptic density patterns in the MSA brain and establish diagnostic criteria.
Brain Behav
January 2025
Department of Neurology, Tianjin Key Laboratory of Cerebrovascular and Neurodegenerative Diseases, Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Huanhu Hospital, Tianjin Medical University, Tianjin, China.
Background: Respirator failure (RF) is a severe malignant complication in both lateral medullary infarction (LMI) and medial medullary infarction (MMI) patients. However, the differences in clinical and radiological manifestations associated with RF between patients with LMI and MMI have not been fully elucidated.
Methods: A total of 435 consecutive patients with MI within 7 days of onset in our institute were retrospectively enrolled from January 2017 to January 2024.
Biomedicines
December 2024
Diagnostic and Interventional Neuroradiology Unit, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy.
The glycosylphosphatidylinositol (GPI) is a glycol-lipid that anchors several proteins to the cell surface. The GPI-anchor pathway is crucial for the correct function of proteins involved in cell function, and it is fundamental in early neurogenesis and neural development. The PIG gene family is a group of genes involved in this pathway with six genes identified so far, and defects in these genes are associated with a rare inborn metabolic disorder manifesting with a spectrum of clinical phenotypes in newborns and children.
View Article and Find Full Text PDFJ Comp Neurol
December 2024
Department of Neurology, University of Iowa, Iowa City, Iowa, USA.
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