Results 81 to 90 of about 171 (170)

The many roads to dementia: a systems view of Alzheimer's disease [PDF]

arXiv
Alzheimer's disease is not the outcome of a single cause but the convergence of many. This review reframes dementia as a systemic failure, where amyloid plaques and tau tangles are not root causes but late-stage byproducts of the underlying metabolic collapse.
arxiv  

Solving the Amyloid Paradox: Unveiling the Complex Pathogenicity of Amyloid Fibrils

Aggregate, EarlyView.
This review addresses the gap between strong evidence for the involvement of amyloid fibrils in neurodegeneration and the failure of anti‐amyloid therapies, a phenomenon herein termed the “amyloid paradox.” To address this paradox, we provide a comprehensive summary of the current understanding of fibrils' pathogenic properties and mechanisms ...
Maksim I. Sulatsky, Olesya V. Stepanenko, Olga V. Stepanenko, Anna I. Sulatskaya   +3 more
wiley   +1 more source

Early functional and structural hippocampal impairment in a bilateral common carotid artery stenosis mouse model

Animal Models and Experimental Medicine, EarlyView.
Our study used behavioral tests, laser speckle flowmetry, long‐term potentiation, histochemical staining, molecular experiments, and voxel‐based morphometry to evaluate the hippocampal impairments. It demonstrates early functional and structural impairments in the hippocampus contributing to learning and memory deficits after 1 month of BCAS ...
Ping Tang, Yi Sun, Chunsheng Yang, Nan Zhang   +3 more
wiley   +1 more source

Alterations in gut microbiota and metabolites contribute to postoperative sleep disturbances

Animal Models and Experimental Medicine, EarlyView.
In this study, we classified postoperative patients into poor sleepers (PS) and good sleepers (GS) based on the bispectral index (BIS), and transplanted their fecal microbiota to pseudo‐germ‐free rats to analyze the sleep changes in rats and the potential mechanism.
Hui Zhong, Meiru Jiang, Kun Yuan, Fang Sheng, Xiuyun Xu, Yong Cui, Xijia Sun, Wenfei Tan   +7 more
wiley   +1 more source

Identifying the optimal dose of cannabidiol by intrabuccal administration in Kramnik (C3HeB/FeJ) mice

Animal Models and Experimental Medicine, EarlyView.
Cannabidiol (CBD) has numerous therapeutic properties, and is used to treat neurological conditions, such as neuroinflammation. However, the optimal dose of CBD to penetrate the brain requires further investigation. The primary aim of this study was to use a mouse model and the intrabuccal route for CBD administration to determine the optimal dose at ...
Oluwadara Pelumi Omotayo, Siyethemba Bhengu, Kobus Venter, Yolandy Lemmer, Shayne Mason   +4 more
wiley   +1 more source

A data-informed mathematical model of microglial cell dynamics during ischemic stroke in the middle cerebral artery [PDF]

arXiv
Neuroinflammation immediately follows the onset of ischemic stroke in the middle cerebral artery. During this process, microglial cells are activated in and recruited to the penumbra. Microglial cells can be activated into two different phenotypes: M1, which can worsen brain injury; or M2, which can aid in long-term recovery.
arxiv  

Effects of Dictyophora polysaccharide on cerebellar Purkinje cell degeneration in a chronic alcohol mouse model

Animal Models and Experimental Medicine, EarlyView.
In an ethanol (EtOH)‐treated mouse model, increases in the NLRP3 inflammasome proteins, PC degeneration, and motor coordination disorders were observed. DIP suppressed the NLRP3‐ASC‐caspase‐1 signaling pathway, and alleviated the motor deficits and cerebellar pathological changes in chronic EtOH‐treated mice.
Jian Zhang, Zhihui Dai, Huanhuan Yu, Baofei Sun, Jiuyang Ding, Yuanhe Wang   +5 more
wiley   +1 more source

Functional Assessment of Cerebral Capillaries using Single Capillary Reporters in Ultrasound Localization Microscopy [PDF]

arXiv
The brain's microvascular cerebral capillary network plays a vital role in maintaining neuronal health, yet capillary dynamics are still not well understood due to limitations in existing imaging techniques. Here, we present Single Capillary Reporters (SCaRe) for transcranial Ultrasound Localization Microscopy (ULM), a novel approach enabling non ...
arxiv  

Distinct Alterations of Inflammatory Biomarkers in Cluster Headache: A Case Control Study

Annals of Neurology, EarlyView.
Objective Investigate the immune system's role in cluster headache by analyzing cytokines in people with cluster headache and headache‐free controls, and explore if certain cytokines could predict a specific phenotype. Methods We measured 45 cytokines in adult participants from the Danish Cluster Headache Biobank in a prospective case–control setup ...
Nunu Laura Timotheussen Lund, Connar Stanley James Westgate, Marie‐Louise Kulas Søborg, Agneta Henriette Snoer, Rigmor Højland Jensen, Thomas Folkman Hansen, Anja Sofie Petersen   +6 more
wiley   +1 more source

Modeling the prion protein-mediated transport of extracellular vesicles on the neuron surface [PDF]

arXiv
Neurodegenerative diseases are among the leading causes of global mortality, characterized by the progressive deterioration of specific neuron populations, ultimately leading to cognitive decline and dementia. Extracellular vesicles (EVs) are believed to play a role in the early stages of these diseases, acting as carriers of pathogens and contributing
arxiv