Results 71 to 80 of about 5,310,608 (313)

Iron deficiency in parkinsonism : region-specific iron dysregulation in Parkinson's disease and multiple system atrophy [PDF]

open access: yes
Alpha synuclein pathology is widespread and found in diverse cell types in multiple system atrophy (MSA) as compared to Parkinson's disease (PD). The reason for this differential distribution is unknown.
Visanji, Naomi P.   +5 more
core   +1 more source

Expert consensus on diagnostic management specification and biomarker disclosure for subjective cognitive decline

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery
The concept of subjective cognitive decline (SCD) is currently receiving much attention, as SCD has a high risk of transitioning to mild cognitive impairment (MCI) and dementia.
Neurodegenerative Disease Special Committee, China Association for Promotion of Health Science and Technology
doaj   +1 more source

Impaired phonemic discrimination in logopenic variant primary progressive aphasia

open access: yesAnnals of Clinical and Translational Neurology, 2020
Logopenic variant primary progressive aphasia (lvPPA) is the least well defined of the major primary progressive aphasia (PPA) syndromes. We assessed phoneme discrimination in patients with PPA (semantic, nonfluent/agrammatic, and logopenic variants) and
Jeremy C. S. Johnson   +13 more
doaj   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

open access: yesAging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Insights into molecular mechanisms of disease in Neurodegeneration with Brain Iron Accumulation; unifying theories. [PDF]

open access: yes, 2016
Neurodegeneration with brain iron accumulation (NBIA) is a group of disorders characterised by dystonia, parkinsonism and spasticity. Iron accumulates in the basal ganglia and may be accompanied by Lewy bodies, axonal swellings and hyperphosphorylated ...
Arber, C   +7 more
core   +1 more source

Cholinergic modulation of hippocampal calcium activity across the sleep-wake cycle

open access: yeseLife, 2019
Calcium is a critical second messenger in neurons that contributes to learning and memory, but how the coordination of action potentials of neuronal ensembles with the hippocampal local field potential (LFP) is reflected in dynamic calcium activity ...
Heng Zhou   +9 more
doaj   +1 more source

Predictive Ability of Plasma p‐tau217 for β‐Amyloid Status: A Prospective Multicenter Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Plasma tau phosphorylated at threonine 217 (p‐tau217) measured with fully automated platforms has shown high accuracy for Alzheimer's disease (AD) diagnosis, but real‐world multicenter data remain limited. We aimed to validate the diagnostic performance of p‐tau217 for identifying AD pathology in a real‐world multicenter cohort ...
Miquel Massons   +33 more
wiley   +1 more source

The role of complement in synaptic degeneration

open access: yes, 2012
Synapse loss is an early event of many neurodegenerative diseases including Alzheimer?s disease and Parkinson?s disease. The causes and mechanisms that underpin synapse dysfunction and degeneration are poorly understood.
Malfa, Katya
core   +1 more source

Behavioural and neuroanatomical correlates of auditory speech analysis in primary progressive aphasias

open access: yesAlzheimer’s Research & Therapy, 2017
Background Non-verbal auditory impairment is increasingly recognised in the primary progressive aphasias (PPAs) but its relationship to speech processing and brain substrates has not been defined.
Chris J. D. Hardy   +10 more
doaj   +1 more source

Protein changes in synaptosomes of Huntington's disease knock-in mice are dependent on age and brain region

open access: yesNeurobiology of Disease, 2020
Molecular changes at synapses are thought to underly the deficits in motor and cognitive dysfunction seen in Huntington's disease (HD). Previously we showed in synaptosome preparations age dependent changes in levels of selected proteins examined by ...
Ellen Sapp   +6 more
doaj   +1 more source

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