The glymphatic pathway in neurological disorders

Publication date: November 2018Source: The Lancet Neurology, Volume 17, Issue 11Author(s): Martin Kaag Rasmussen, Humberto Mestre, Maiken NedergaardSummaryBackgroundThe glymphatic (glial-lymphatic) pathway is a fluid-clearance pathway identified in the rodent brain in 2012. This pathway subserves the flow of CSF into the brain along arterial perivascular spaces and subsequently into the brain interstitium, facilitated by aquaporin 4 (AQP4) water channels. The pathway then directs flow towards the venous perivascular and perineuronal spaces, ultimately clearing solutes from the neuropil into meningeal and cervical lymphatic drainage vessels. In rodents, the glymphatic pathway is predominantly active during sleep, when the clearance of harmful metabolites such as amyloid β (Aβ) increases two-fold relative to the waking state. Glymphatic dysfunction, probably related to perturbed AQP4 expression, has been shown in animal models of traumatic brain injury, Alzheimer's disease, and stroke. The recent characterisations of the glymphatic and meningeal lymphatic systems in rodents and in humans call for revaluation of the anatomical routes for CSF–interstitial fluid flow and the physiological role that these pathways play in CNS health.Recent developmentsSeveral features of the glymphatic and meningeal lymphatic systems have been shown to be present in humans. MRI scans with intrathecally administered contrast agent show that CSF flows along pathways that closely resem...
Source: The Lancet Neurology - Category: Neurology Source Type: research

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Neurologic disease in horses can be particularly challenging to diagnose and treat. These diseases can result in economic losses, emotional distress to owners, and injury to the horse or handlers. To date, there are 5 neurologic diseases caused by known genetic mutations and several more are suspected to be heritable: lethal white foal syndrome, lavender foal syndrome, cerebellar abiotrophy, occipitoatlantoaxial malformation, and Friesian hydrocephalus. Genetic testing allows owners, breeders, and veterinarians to make informed decisions when selecting dams and sires for breeding or deciding the treatment or prognosis of a neurologic animal.
Source: Veterinary Clinics of North America: Equine Practice - Category: Veterinary Research Authors: Source Type: research
Publication date: Available online 9 July 2020Source: Physiology &BehaviorAuthor(s): Erik Wibowo, Angela C.B. Garcia, Joanna Mainwaring
Source: Physiology and Behavior - Category: Physiology Source Type: research
CONCLUSIONS: The GXT provided only a peak VO2 but not the VO2max. Consequently, the real VO2max and PPO could be provided by only VP administrations. This is likely to result from the lower Qc and SV responses observed from a prolonged incremental test protocol when compared to short bouts of constant work rate trials. PMID: 32639117 [PubMed - as supplied by publisher]
Source: Journal of Sports Medicine and Physical Fitness - Category: Sports Medicine Tags: J Sports Med Phys Fitness Source Type: research
We report a new approach for the development of multitargeted therapeutics for Alzheimer ’s disease (AD) based on dual targeting of monomeric tau and biogenesis of microRNA-146a. Compound MG-1102 displayed superior... The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - Chem. Commun. latest articles - Category: Chemistry Authors: Source Type: research
CONCLUSIONS: PulseRider-assisted coiling for treatment of patients with wide-necked aneurysm reached 90% adequate occlusion rate that rises up to 91% at sixth month with 5% complication rate. PMID: 32635777 [PubMed - as supplied by publisher]
Source: Interventional Neuroradiology - Category: Radiology Tags: Interv Neuroradiol Source Type: research
Publication date: Available online 9 July 2020Source: European UrologyAuthor(s): Egesta Lopci, Massimo Lazzeri
Source: European Urology - Category: Urology & Nephrology Source Type: research
ConclusionFor the PWE included in this study, the incidence of comorbid anxiety and depression in PWE was similar for men and women, but the moderating factors affecting comorbid anxiety and depressive disorders differed between genders: male PWE were more likely to be affected by psychosocial factors, while female PWE were more influenced by epilepsy itself. This exploration suggests that gender-specific health care should be considered in epilepsy therapy to improve the psychiatric condition and QOL of PWE, and different treatments should be conducted for male and female PWE to prevent negative emotional comorbidities.
Source: Frontiers in Psychiatry - Category: Psychiatry Source Type: research
Cytokine storm is an acute hyperinflammatory response that may be responsible for critical illness in many conditions including viral infections, cancer, sepsis, and multi-organ failure. The phenomenon has been implicated in critically ill patients infected with SARS-CoV-2, the novel coronavirus implicated in COVID-19. Critically ill COVID-19 patients experiencing cytokine storm are believed to have a worse prognosis and increased fatality rate. In SARS-CoV-2 infected patients, cytokine storm appears important to the pathogenesis of several severe manifestations of COVID-19: acute respiratory distress syndrome, thromboembo...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Background: The association between contrast enhanced (CE) and non-contrast enhanced (NCE) tumor resection and survival in patients with glioblastoma in relation to molecular subtypes is poorly understood. The aim of this study was to assess the association between CE and NCE tumor resection and survival in light of MGMT promoter methylation in newly diagnosed IDH-wildtype glioblastoma.Materials and methods: Patients with newly diagnosed IDH-wildtype glioblastoma who underwent surgery were eligible. CE and NCE tumor volumes were assessed on pre- and post-operative MRI scans and extent of resection was calculated. The assoc...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Publication date: Available online 8 July 2020Source: International Journal of Nursing SciencesAuthor(s): Nursiswati Nursiswati, Ruud JG. Halfens, Christa Lohrmann
Source: International Journal of Nursing Sciences - Category: Nursing Source Type: research
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