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Synaptic and synchronic impairments in subcortical brain regions associated with early non-cognitive dysfunction in Alzheimer's disease.
Neural Regen Res
January 2025
Laboratorio de Neurofisiología, Departamento de Fisiología, Universidad de Concepción, Concepción, Chile.
For many decades, Alzheimer's disease research has primarily focused on impairments within cortical and hippocampal regions, which are thought to be related to cognitive dysfunctions such as memory and language deficits. The exact cause of Alzheimer's disease is still under debate, making it challenging to establish an effective therapy or early diagnosis. It is widely accepted that the accumulation of amyloid-beta peptide in the brain parenchyma leads to synaptic dysfunction, a critical step in Alzheimer's disease development.
View Article and Find Full Text PDFVitamin D differentiates dopamine neurons in vitro, increasing neurite architecture, dopamine release and expression of relevant synaptic proteins.
J Steroid Biochem Mol Biol
January 2025
Queensland Brain Institute, University of Queensland, Qld 4072, Australia; Queensland Centre for Mental Health Research, Wacol, Qld 4076, Australia. Electronic address:
Epidemiological studies often link circulatory levels of 25 hydroxy vitamin D with an overwhelming variety of disorders. Of such studies, an increasing number are now linking blood 25 hydroxy vitamin D levels with certain brain disorders. Prominent amongst such disorders are schizophrenia and Parkinson's disease.
View Article and Find Full Text PDFOlder cerebral small vessel disease and sleep disturbance: A diffusion tensor imaging study.
Sleep Med
January 2025
Department of Neurology, Second Hospital of Tianjin Medical University, Tianjin, 300211, China. Electronic address:
Objective: This study examined the relationship between diffusion tensor imaging indicators and brain network characteristics in patients with cerebral small vessel disease (CSVD) with (CSVD + S) and without (CSVD-S) sleep disturbance. We explored the feasibility of using these imaging biomarkers to investigate the pathophysiological mechanisms underlying sleep disturbance in patients with CSVD.
Methods: A total of 146 patients with CSVD and 84 healthy controls were included.
Novel NOTCH3 mutation c.1564 T > A (p.Cys522Ser) presenting with early-onset Parkinsonism and white matter lesions.
Clin Park Relat Disord
January 2025
Cerebrovascular Unit Fondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy.
CADASIL (Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy) is a hereditary small vessel disease caused by mutations in the NOTCH3 gene, characterized by recurrent strokes, cognitive decline, and psychiatric symptoms. This report presents a novel NOTCH3 c.1564 T > A (p.
View Article and Find Full Text PDFThe brain-gut microbiota network (BGMN) is correlated with symptom severity and neurocognition in patients with schizophrenia.
Neuroimage
January 2025
School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China; Department of Aging Research and Geriatric Medicine, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan. Electronic address:
The association between the human brain and gut microbiota, known as the "brain-gut-microbiota axis", is involved in the neuropathological mechanisms of schizophrenia (SZ); however, its association patterns and correlations with symptom severity and neurocognition are still largely unknown. In this study, 43 SZ patients and 55 normal controls (NCs) were included, and resting-state functional magnetic resonance imaging (rs-fMRI) and gut microbiota data were acquired for each participant. First, the brain features of brain images and functional brain networks were computed from rs-fMRI data; the gut features of gut microbiota abundance and the gut microbiota network were computed from gut microbiota data.
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