Now showing items 1-10 of 20
Dysfunction of the unfolded protein response increases neurodegeneration in aged rat hippocampus following proteasome inhibition
Dysfunctions of the ubiquitin proteasome system (UPS) have been proposed to be involved in the aetiology and/or progression of several age-related neurodegenerative disorders. However, the mechanisms linking proteasome ...
Disruption of Amyloid Plaques Integrity Affects the Soluble Oligomers Content from Alzheimer Disease Brains
(Public Library of Science, 2014)
The implication of soluble Abeta in the Alzheimer's disease (AD) pathology is currently accepted. In fact, the content of soluble extracellular Abeta species, such as monomeric and/or oligomeric Abeta, seems to correlate ...
In vivo modification of Abeta plaque toxicity as a novel neuroprotective lithium-mediated therapy for Alzheimer’s disease pathology
(BioMed Central, 2013)
Background: Alzheimer’s disease (AD) is characterized by the abnormal accumulation of extracellular beta-amyloid (Abeta) plaques, intracellular hyperphosphorylated tau, progressive synaptic alterations, axonal dystrophies, ...
Amyloid-β reduces the expression of neuronal FAIM-L, thereby shifting the inflammatory response mediated by TNFα from neuronal protection to death
(Nature Publishing Group, 2015)
The brains of patients with Alzheimer's disease (AD) present elevated levels of tumor necrosis factor-α (TNFα), a cytokine that has a dual function in neuronal cells. On one hand, TNFα can activate neuronal apoptosis, and ...
Molecular and pharmacological characterization of native cortical γ- aminobutyric acids receptors containing both α1 and α3 subunits
We have investigated the existence, molecular composition, and benzodiazepine binding properties of native cortical α1-α3 γ- aminobutyric acid(A) (GABA(A)) receptors using subunit-specific antibodies. The co-existence of ...
GABAa and a-Amino-3-hydroxy-5-methylsoxazole-4-propionate receptors are differentially affected by aging in the rat hippocampus
(American Society for Biochemistry and Molecular Biology, 2000)
We have investigated the age-dependent modifications in the expression of eight different subunits of the γ-aminobutyric acid, type A (GABAA) receptor (α1, α2, α3, α5, β2, β3, γ2S, and γ2L) and all four subunits of the ...
Acute and Chronic Sustained Hypoxia Do Not Substantially Regulate Amyloid-β Peptide Generation In Vivo
(Public Library of Science, 2017)
Background Recent epidemiological evidence has linked hypoxia with the development of Alzheimer disease (AD). A number of in vitro and in vivo studies have reported that hypoxia can induce amyloid-β peptide accumulation ...
Defective lysosomal proteolysis and axonal transport are early pathogenic events that worsen with age leading to increased APP metabolism and synaptic Abeta in transgenic APP/PS1 hippocampus
Background: Axonal pathology might constitute one of the earliest manifestations of Alzheimer disease. Axonal dystrophies were observed in Alzheimer’s patients and transgenic models at early ages. These axonal dystrophies ...
Regional difference in inflammatory response to LPS-injection in the brain: Role of microglia cell density
To elucidate whether density of cells could contribute to the extent of microglial activation, we performed in vitro assays using three different densities of N13 microglia stimulated with LPS. Our results showed that ...
Distinct Microglial Responses in Two Transgenic Murine Models of TAU Pathology
(Frontiers Media Research Foundation, 2018-11-14)
Microglial cells are crucial players in the pathological process of neurodegenerative diseases, such as Alzheimer’s disease (AD). Microglial response in AD has been principally studied in relation to amyloid-beta pathology ...