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On page 1 showing 1 ~ 3 papers out of 3 papers

Elevated levels of extracellular vesicles in progranulin-deficient mice and FTD-GRN Patients.

  • Andrew E Arrant‎ et al.
  • Annals of clinical and translational neurology‎
  • 2020‎

The goal of this study was to investigate the effect of progranulin insufficiency on extracellular vesicles (EVs), a heterogeneous population of vesicles that may contribute to progression of neurodegenerative disease. Loss-of-function mutations in progranulin (GRN) are a major cause of frontotemporal dementia (FTD), and brains from GRN carriers with FTD (FTD-GRN) exhibit signs of lysosomal dysfunction. Lysosomal dysfunction may induce compensatory increases in secretion of exosomes, EVs secreted from the endolysosomal system, so we hypothesized that progranulin insufficiency would increase EV levels in the brain.


Age-dependent effects of APOE ε4 in preclinical Alzheimer's disease.

  • Luke W Bonham‎ et al.
  • Annals of clinical and translational neurology‎
  • 2016‎

The ε4 allele of apolipoprotein E (APOE) is the strongest known common genetic risk factor for Alzheimer's disease (AD) and alters age of onset in retrospective studies. Here, we longitudinally test the effects of APOE ε4 genotype and age during progression from normal cognition to AD.


Spatiotemporal characteristics of neurophysiological changes in patients with four-repeat tauopathies.

  • Niyatee Samudra‎ et al.
  • Annals of clinical and translational neurology‎
  • 2024‎

Progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD), are the most common four-repeat tauopathies (4RT), and both frequently occur with varying degree of Alzheimer's disease (AD) copathology. Intriguingly, patients with 4RT and patients with AD are at opposite ends of the wakefulness spectrum-AD showing reduced wakefulness and excessive sleepiness whereas 4RT showing decreased homeostatic sleep. The neural mechanisms underlying these distinct phenotypes in the comorbid condition of 4RT and AD are unknown. The objective of the current study was to define the alpha oscillatory spectrum, which is prominent in the awake resting-state in the human brain, in patients with primary 4RT, and how it is modified in comorbid AD-pathology.


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