CNS tuberculosis remains relatively frequent in endemic regions. Both CT and MRI are valuable for diagnosis. Even though non-specific, MRI including diffusion-weighted imaging and proton spectroscopy is more sensitive than CT for detection of some lesions. The purpose of this paper is to illustrate the imaging features of CNS tuberculosis.
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Device-assisted strategies for drug delivery across the blood-brain barrier to treat glioblastoma.
Commun Mater
January 2025
Department of Biology, Emory University, Atlanta, GA USA.
The blood-brain barrier, essential for protecting the central nervous system, also restricts drug delivery to this region. Thus, delivering drugs across the blood-brain barrier is an active research area in immunology, oncology, and neurology; moreover, novel methods are urgently needed to expand therapeutic options for central nervous system pathologies. While previous strategies have focused on small molecules that modulate blood-brain barrier permeability or penetrate the barrier, there is an increased focus on biomedical devices-external or implanted-for improving drug delivery.
View Article and Find Full Text PDFDeep learning MRI models for the differential diagnosis of tumefactive demyelination versus -wildtype glioblastoma.
AJNR Am J Neuroradiol
January 2025
From the Department of Radiology (GMC, MM, YN, BJE), Department of Quantitative Health Sciences (PAD, MLK, JEEP), Department of Neurology (CBM, JAS, MWR, FSG, HKP, DHL, WOT), Department of Neurosurgery (TCB), Department of Laboratory Medicine and Pathology (RBJ), and Center for Multiple Sclerosis and Autoimmune Neurology (WOT), Mayo Clinic, Rochester, MN, USA; Dell Medical School (MFE), University of Texas, Austin, TX, USA.
Background And Purpose: Diagnosis of tumefactive demyelination can be challenging. The diagnosis of indeterminate brain lesions on MRI often requires tissue confirmation via brain biopsy. Noninvasive methods for accurate diagnosis of tumor and non-tumor etiologies allows for tailored therapy, optimal tumor control, and a reduced risk of iatrogenic morbidity and mortality.
View Article and Find Full Text PDFAstrocytes in aging.
Neuron
January 2025
Salk Institute for Biological Studies, Molecular Neurobiology Laboratory, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA. Electronic address:
The mammalian nervous system is impacted by aging. Aging alters brain architecture, is associated with molecular damage, and can manifest with cognitive and motor deficits that diminish the quality of life. Astrocytes are glial cells of the CNS that regulate the development, function, and repair of neural circuits during development and adulthood; however, their functions in aging are less understood.
View Article and Find Full Text PDFBackground: Tau phosphorylated at position 217 (pTau217) is considered to have the highest accuracy in identifying Alzheimer's disease (AD) pathology using blood. We describe a multi-cohort evaluation of the Simoa ALZpath pTau217 assay for the prediction of amyloid status in combination with additional blood-based AD biomarkers (GFAP, pTau181, etc.), as well as comparisons between histopathological and PET based amyloid measurements.
View Article and Find Full Text PDFBiomarkers.
Alzheimers Dement
December 2024
Australian Alzheimer's Research Foundation, Perth, Western Australia, Australia.
Background: As an extension of the central nervous system (CNS), the retina shares many similarities with the brain and can manifest signs of various neurological diseases, including Alzheimer's disease (AD). This study investigates the spectral features of the retina to develop a classification model for the differentiation of individuals with elevated brain amyloid levels.
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