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Roles of blood monocytes carrying TREM2 mutation in pathogenesis of Alzheimer's disease and its therapeutic potential in APP/PS1 mice.
Alzheimers Dement
December 2024
Department of Neurology and Centre for Clinical Neuroscience, Daping Hospital, Third Military Medical University, Chongqing, China.
Introduction: The triggering receptor expressed on myeloid cells 2 (TREM2) arginine-47-histidine (R47H) mutation is a significant risk for Alzheimer's disease (AD) with unclear mechanisms. Previous studies focused on microglial amyloid-β (Aβ) phagocytosis with less attention on the impact of TREM2 mutation on blood monocytes.
Methods: Bone marrow transplantation (BMT) models were used to assess the contribution of blood monocytes carrying TREM2 mutation to AD.
Lactylation of tau in human Alzheimer's disease brains.
Alzheimers Dement
December 2024
Department of Cell Biology and Physiology, University of Kansas Medical Center, Kansas City, Kansas, USA.
Introduction: Aggregation of hyperphosphorylated tau (tauopathy) is associated with cognitive impairment in patients with Alzheimer's disease (AD). In AD, a metabolic shift due to the Warburg effect results in increased lactate production. Lactate can induce a post-translational modification (PTM) on proteins that conjugates lactyl groups to lysine (K) residues, which is known as lactylation.
View Article and Find Full Text PDFFacing the new diagnostic and treatment options of Alzheimer's disease: The necessity of informed consent.
Alzheimers Dement
December 2024
Department of Psychiatry, University of Cologne, Medical Faculty, Cologne, Germany.
With advances in biomarker-based detection of Alzheimer's disease (AD) and new treatment options with disease-modifying treatments (DMTs), we are heading toward a new conceptualization of diagnostics and therapy in the early stages of AD. Yet consensus guidelines on best clinical practices in predictive AD diagnostics are still developing. Currently, there is a knowledge gap regarding counseling and disclosure practices in early symptomatic disease stages, its implications for dementia risk estimation, and DMTs with associated risks and benefits.
View Article and Find Full Text PDFRespiratory Virus Vaccines: Pathways to Recommendations and Enhanced Coverage for At-Risk Populations.
Infect Dis Ther
December 2024
Moderna, Inc., Cambridge, MA, USA.
While marked differences exist between influenza virus, respiratory syncytial virus (RSV), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), there is substantial overlap in the vulnerability of populations most at risk for severe disease following infection, chief among them being advanced age, multiple comorbidities, and immunocompromise. Vaccination is an established and effective preventative strategy to protect against respiratory viral infections (RVIs), reducing morbidity and mortality, minimizing the potential for long-term complications, and mitigating exacerbation of existing health conditions. Despite the demonstrated benefits of immunization throughout the life course and recommendations by health authorities, coverage rates of at-risk populations against vaccine-preventable diseases remain suboptimal and vary considerably by country and demographic strata.
View Article and Find Full Text PDFSpatial proteomic differences in chronic traumatic encephalopathy, Alzheimer's disease, and primary age-related tauopathy hippocampi.
Alzheimers Dement
December 2024
Department of Pathology, Molecular, and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
Introduction: Alzheimer's disease (AD), primary age-related tauopathy (PART), and chronic traumatic encephalopathy (CTE) all feature hyperphosphorylated tau (p-tau)-immunoreactive neurofibrillary degeneration, but differ in neuroanatomical distribution and progression of neurofibrillary degeneration and amyloid beta (Aβ) deposition.
Methods: We used Nanostring GeoMx Digital Spatial Profiling to compare the expression of 70 proteins in neurofibrillary tangle (NFT)-bearing and non-NFT-bearing neurons in hippocampal CA1, CA2, and CA4 subregions and entorhinal cortex of cases with autopsy-confirmed AD (n = 8), PART (n = 7), and CTE (n = 5).
Results: There were numerous subregion-specific differences related to Aβ processing, autophagy/proteostasis, inflammation, gliosis, oxidative stress, neuronal/synaptic integrity, and p-tau epitopes among these different disorders.
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