منابع مشابه
Preoperative cerebrospinal fluid β-Amyloid/Tau ratio and postoperative delirium
OBJECTIVE The neuropathogenesis of postoperative delirium remains unknown. Low cerebrospinal fluid (CSF) βamyloid protein (Aβ) and high CSF Tau levels are associated with Alzheimer's disease. We therefore assessed whether lower preoperative CSF Aβ/Tau ratio was associated with higher incidence and greater severity of postoperative delirium. METHODS One hundred and fifty three participants (71...
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Alzheimer's Disease (AD) is defined histopathologically by extracellular beta-amyloid (Abeta) fibrils plus intraneuronal tau filaments. Studies of transgenic mice and cultured cells indicate that AD is caused by a pathological cascade in which Abeta lies upstream of tau, but the steps that connect Abeta to tau have remained undefined. We demonstrate that tau confers acute hypersensitivity of mi...
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We have investigated at the oligomeric level interactions between Aβ(25-35) and Tau(273-284), two important fragments of the amyloid-β and Tau proteins, implicated in Alzheimer's disease. We are able to directly observe the coaggregation of these two peptides by probing the conformations of early heteroligomers and the macroscopic morphologies of the aggregates. Ion-mobility experiment and theo...
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Passive immunization against misfolded toxic proteins is a promising approach to treat neurodegenerative disorders. For effective immunotherapy against Alzheimer's disease, recent clinical data indicate that monoclonal antibodies directed against the amyloid-β peptide should be administered before the onset of symptoms associated with irreversible brain damage. It is therefore critical to devel...
متن کاملBrainstem tau pathology in Alzheimer’s disease is characterized by increase of three repeat tau and independent of amyloid β
INTRODUCTION Alzheimer-type neuropil threads (NTs) and neurofibrillary tangles (NFTs) are comprised of either 4 repeat (4R)-tau, 3 repeat (3R)-tau, or a mixture of both. In the hippocampus, the number of NFTs, and the proportion of 3R tau progressively increases. If this preferential accumulation of 3R tau also occurs in the brainstem, it may be fundamentally related to progression of Alzheimer...
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ژورنال
عنوان ژورنال: JAMA Neurology
سال: 2014
ISSN: 2168-6149
DOI: 10.1001/jamaneurol.2013.5847