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Background: Neuromyelitis optica spectrum disorder (NMOSD) is a clinically defined, inflammatory central nervous system (CNS) disease of unknown cause, associated with humoral autoimmune findings such as anti-aquaporin 4 (AQP4)-IgG.
Oliver Schmetzer +18 more
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Neuroimmunological Implications of AQP4 in Astrocytes [PDF]
The brain has high-order functions and is composed of several kinds of cells, such as neurons and glial cells. It is becoming clear that many kinds of neurodegenerative diseases are more-or-less influenced by astrocytes, which are a type of glial cell.
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Drug Treatment of Neuromyelitis Optica Spectrum Disorders: Out with the Old, in with the New?
Friederike Held, Ana-Katharina Klein, Achim Berthele Department of Neurology, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, GermanyCorrespondence: Achim BertheleDepartment of Neurology, School of Medicine, Klinikum
Held F, Klein AK, Berthele A
doaj
Freeze-fracture and immunogold analysis of aquaporin-4 (AQP4) square arrays, with models of AQP4 lattice assembly [PDF]
Each day, approximately 0.5-0.9 l of water diffuses through (primarily) aquaporin-1 (AQP1) channels in the human choroid plexus, into the cerebrospinal fluid of the brain ventricles and spinal cord central canal, through the ependymal cell lining, and into the parenchyma of the CNS. Additional water is also derived from metabolism of glucose within the
J E, Rash +3 more
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AQP4, Astrogenesis, and Hydrocephalus: A New Neurological Perspective
Aquaporin 4 (AQP4) is a cerebral glial marker that labels ependymal cells and astrocytes’ endfeet and is the main water channel responsible for the parenchymal fluid balance. However, in brain development, AQP4 is a marker of glial stem cells and plays a crucial role in the pathophysiology of pediatric hydrocephalus.
Leandro Castañeyra-Ruiz +5 more
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1,2-Dichloroethane (1,2-DCE) is a pervasive environmental pollutant, and overexposure to this hazardous material causes brain edema and demyelination in humans. We found that 1,2-DCE inhibits aquaporin 4 (AQP4) and is a primary pathogenic effector of 1,2-
Yizhou Zhong +14 more
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We assessed interactions between the astrocytic volume-regulated anion channel (VRAC) and aquaporin 4 (AQP4) in the supraoptic nucleus (SON). Acute SON slices and cultures of hypothalamic astrocytes prepared from rats received hyposmotic challenge (HOC ...
Yang Liu +11 more
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A Case of Longitudinal Extensive Transversal Myelitis in Patient With Neuromyelitis Optica Spectrum Disorder and Systemic Lupus Erythematosus. [PDF]
ABSTRACT Neuromyelitis optica spectrum disorder (NMOSD) is a rare autoimmune, demyelinating disorder of the central nervous system. Clinical manifestations include optic neuritis, longitudinally extensive transverse myelitis (LETM) involving three or more vertebral segments, and, in most cases, seropositivity for anti‐aquaporin‐4 antibodies (AQP4‐IgG).
Pravdic N +7 more
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An allograft glioma model reveals the dependence of aquaporin-4 expression on the brain microenvironment. [PDF]
Aquaporin-4 (AQP4), the main water channel of the brain, is highly expressed in animal glioma and human glioblastoma in situ. In contrast, most cultivated glioma cell lines don't express AQP4, and primary cell cultures of human glioblastoma lose it ...
Susan Noell +4 more
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Biology of
AbstractThe water channel aquaporin‐4 (AQP4) is the target of the immunoglobulin G autoantibody (AQP4‐IgG) in neuromyelitis optica (NMO). AQP4 is expressed in foot processes of astrocytes throughout the central nervous system, as well as in skeletal muscle and epithelial cells in kidney, lung and gastrointestinal organs.
A S, Verkman +3 more
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