Results 91 to 100 of about 49,483 (288)

Physiological Roles of Aquaporin-4 in Brain

open access: yesPhysiological Reviews, 2013
Aquaporin-4 (AQP4) is one of the most abundant molecules in the brain and is particularly prevalent in astrocytic membranes at the blood-brain and brain-liquor interfaces. While AQP4 has been implicated in a number of pathophysiological processes, its role in brain physiology has remained elusive.
Erlend A, Nagelhus, Ole P, Ottersen
openaire   +3 more sources

Cells Dynamically Adapt Their Nuclear Volumes and Proliferation Rates During Single to Multicellular Transitions

open access: yesAdvanced Science, EarlyView.
It is currently not well understood how cells regulate basic properties, e.g., volume and mechanics within dense multicellular environments like tumors. Here, we show that different cell types of cancer and also normal cells largely decrease their nuclear and cellular volumes in emerging cell clusters and that this is partly driven by cell cycle shifts.
Vaibhav Mahajan   +13 more
wiley   +1 more source

Spatial model of convective solute transport in brain extracellular space does not support a "glymphatic" mechanism. [PDF]

open access: yes, 2016
A "glymphatic system," which involves convective fluid transport from para-arterial to paravenous cerebrospinal fluid through brain extracellular space (ECS), has been proposed to account for solute clearance in brain, and aquaporin-4 water channels in ...
Jin, Byung-Ju   +2 more
core  

Astrocytic LRP1 mediates brain Aβ clearance and impacts amyloid deposition [PDF]

open access: yes, 2017
Accumulation and deposition of amyloid-β (Aβ) in the brain represent an early and perhaps necessary step in the pathogenesis of Alzheimer's disease (AD).
Bu, Guojun   +8 more
core   +2 more sources

Hyperreflective Foci in the Inner Nuclear Layer: Proof‐of‐Concept for an Optical Coherence Tomography Derived Microglia‐Related Marker in Multiple Sclerosis

open access: yesAnnals of Neurology, EarlyView.
The role of microglia has emerged as a critical driver of disease progression in multiple sclerosis (MS), but we lack broadly applicable monitoring tools. Here, we investigated whether hyperreflective foci (HRF), as detected by optical coherence tomography (OCT) within the inner nuclear layer (INL) of the retina, can be used as a marker for microglial ...
Jonathan A. Gernert   +13 more
wiley   +1 more source

Neuromyelitis optica - an update: 2007-2009

open access: yesAnnals of Indian Academy of Neurology, 2009
Neuromyelitis optica is an inflammatory demyelinating disorder of the central nervous system. The discovery of a specific antibody (NMO IgG /aquaporin-4 antibody) in patients with this condition has led to a marked revival of research on the disease ...
Jacob Anu
doaj  

Barrier mechanisms in neonatal stroke. [PDF]

open access: yes, 2014
Clinical data continue to reveal that the incidence of perinatal stroke is high, similar to that in the elderly. Perinatal stroke leads to significant morbidity and severe long-term neurological and cognitive deficits, including cerebral palsy ...
Chip, Sophorn   +2 more
core   +2 more sources

Clock genes regulate Ca2+ signaling and mitochondrial bioenergetics to inhibit Sjogren's disease

open access: yesArthritis &Rheumatology, Accepted Article.
Objective Although Ca2+ signaling and metabolism have been identified as key determinants for the development of Sjogren's disease (SjD), the intricate connection between them and salivary gland physiology remains poorly understood. Methods Fluorescence‐based Ca2+ imaging, RNA seq, and mitochondrial activity were used to investigate the effects of ...
Viktor R. Drel   +12 more
wiley   +1 more source

Antidepressants and the risk of hyponatremia: A multi‐institutional cohort study using observational medical outcomes partnership—Common Data Model

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Aim Hyponatremia is a common yet potentially serious adverse event associated with antidepressants. Identifying the antidepressant class with the least risk of hyponatremia would improve patient safety. Methods Using electronic medical records from 15 hospitals standardized into Observational Medical Outcomes Partnership Common Data Model (2003–2023 ...
Kyungyeon Jung   +21 more
wiley   +1 more source

Ammonia toxicity: from head to toe? [PDF]

open access: yes, 2016
Ammonia is diffused and transported across all plasma membranes. This entails that hyperammonemia leads to an increase in ammonia in all organs and tissues.
Dasarathy, Srinivasan   +6 more
core   +1 more source

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