Intracerebral hemorrhage in the mouse altered sleep-wake patterns and activated microglia.

Intracerebral hemorrhage in the mouse altered sleep-wake patterns and activated microglia. Exp Neurol. 2020 Feb 11;:113242 Authors: Giordano KR, Denman CR, Dollish HK, Fernandez F, Lifshitz J, Akhter M, Rowe RK Abstract Sleep-wake disturbances are both a risk factor and reported morbidity for intracerebral hemorrhage (ICH). ICH begins with a ruptured blood vessel and blood leakage into the parenchyma. In response to initial damage, pathophysiological processes ensue that both exacerbate and repair damage. Inflammation is a hallmark process of ICH, which includes microglia activation and increased cytokine signaling. Due to the dual role of cytokines as inflammatory signaling proteins and sleep regulatory substances (SRSs), we hypothesized that ICH would activate microglia, increase SRSs, and alter sleep-wake patterns following an experimental model of ICH in the mouse. Male mice were randomized to receive an injection of collagenase (ICH; n = 8) or saline (sham; n = 11) in the striatum of the right hemisphere. Sleep-wake activity was recorded for 6 full days after ICH via noninvasive sleep cages. Blood and tissue were collected at 7 days after ICH to quantify pro-inflammatory cytokines/SRSs (IL-1β, TNF-α, IL-6) and microglia deramification by skeleton analysis. There was an overall injury effect on sleep in mice subjected to ICH at the transition from dark (wake) to light (sleep) at 2, 3, 4, 5, and 6 days after ICH compared with sh...
Source: Experimental Neurology - Category: Neurology Authors: Tags: Exp Neurol Source Type: research

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The present study1 further adds to our understating regarding complex role of possible seasonal variations (eg temperature) and their role as risk factors in causation of diseases (eg stroke) in humans. Authors conclude that hot in summer months the risk of ischemic stroke was higher than hemorrhagic stroke.1 Many studies in the past have generated variable evidence regarding the role of weather temperature as a risk factor for stroke (increased risk to lower risk on no risk).1-6 Increasing temperatures can lead to heat related stress thus interfering with sleep and with daily activities of life and resulting negative in health outcomes.
Source: Journal of Stroke and Cerebrovascular Diseases - Category: Neurology Authors: Tags: Letter to the Editor Source Type: research
Discussion The term, cerebral palsy, or CP has gone through many iterations with the first description in 1861 by W.J. Little who described it as “The condition of spastic rigidity of the limbs of newborn children.” The most recent definition is from Rosenbaun et al. in 2007 which states it is “a group of permanent disorders of the development of movement and posture, causing activity limitation, that are attributed to non-progressive disturbances that occurred in the developing fetal or infant brain. The motor disorders of cerebral palsy are often accompanied by disturbances of sensation, perception, cog...
Source: - Category: Pediatrics Authors: Tags: Uncategorized Source Type: news
Kevin Walsh of the Rotary Club and Julie Clayton, Head of Communications and Engagement at NHS North Cumbria Clinical Commissioning Group, explain how they have helped identify people at risk of stroke Related items fromOnMedica Ending the postcode lottery of stroke care Low cholesterol may increase risk for haemorrhagic stroke Traffic exhaust fumes at residential address increases the risk of stroke Good sleep patterns can reduce susceptibility to heart disease and stroke Innovative stroke detection monitor given green light
Source: OnMedica Views - Category: Primary Care Source Type: news
Background and Purpose: Sleep related Stroke (SRS) is common and has been associated with cerebral small vessel diseases (SVD) in ischemic strokes (ISs). We tested the hypothesis that SRS is associated with SVD in both ischemic and hemorrhagic stroke. Methods: Prospectively collected data from patients consecutively enrolled after intracerebral hemorrhage (ICH) related to SVD or after IS were analyzed. Symptom onset was recorded as SRS versus awake. Each ICH was grouped according to lobar and deep locations.
Source: Journal of Stroke and Cerebrovascular Diseases - Category: Neurology Authors: Source Type: research
Conclusions: Delirium is common after intracerebral hemorrhage, but severe neurologic deficits may confound its assessment and lead to underdiagnosis. The Intensive Care Delirium Screening Checklist’s inclusion of nonverbal features may make it more accurate than the Confusion Assessment Method for the ICU in patients with neurologic deficits, but novel tools designed for such patients may be warranted.
Source: Critical Care Medicine - Category: Emergency Medicine Tags: Neurologic Critical Care Source Type: research
Conclusion: These findings indicate that TBI differentially affects the levels of sex-steroid hormones in men and women patients. Plasma levels of testosterone could be a good candidate blood marker to predict recovery from unconsciousness after sTBI for male patients. Introduction Traumatic brain injury (TBI) is a major cause of death and disability worldwide and is increasing in incidence (1). Patients with acute severe TBI (sTBI) often develop severe disorders of consciousness, i.e., coma, minimally conscious state or vegetative state. Although many patients may regain consciousness during the 1-month post-TBI p...
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research
C-Reactive Protein and Risk of Parkinson's Disease: A Systematic Review and Meta-Analysis Xiaohui Qiu†, Yousheng Xiao†, Jingjing Wu, Lu Gan, Yanning Huang and Jin Wang* Department of Neurology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China Background: C-reactive protein (CRP) has been identified as a common inflammation-related cytokine. Although publications indicate that CRP is associated with the pathogenesis of neurological disorders and deemed to be a “risk factor” for Parkinson's disease (PD), the evidence exists still indefinitely. Here...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Conclusions: Embolism associated with asymptomatic carotid stenosis shows circadian variation with highest rates 4–6 h before midday. This corresponds with peak circadian incidence of stroke and other vascular complications. These and ASED Study results show that monitoring frequency, duration, and time of day are important in ES detection. Introduction Transcranial Doppler (TCD) detected microembolism in the ipsilateral middle cerebral artery (MCA) may help stratify the risk of stroke and other arterial disease complications in persons with advanced (≥60%) asymptomatic carotid stenosis. If so, this techniqu...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Conclusions Stroke comprises ischemic stroke and ICH. The immuno-inflammatory process is involved in neural plasticity following events such as a hemorrhage or ischemic stroke. After ischemia, astrocytes, microglia, and MDMs play important roles during rehabilitation with the modulation of cytokines or chemokines, such as TNF-α and IL-1. Moreover, MiRNAs are also important posttranscriptional regulators in these glial mitochondrial responses to cerebral ischemia. ICH involves processes similar and different to those seen in ischemia, including neuronal injury, astrocytic and microglial/macrophage activation, and neu...
Source: Frontiers in Psychiatry - Category: Psychiatry Source Type: research
Bridget Chiovari, 28, of Arizona, became delusional and unable to walk after doctors told her to just 'sleep her symptoms off'. She was later diagnosed with a brain  haemorrhage.
Source: the Mail online | Health - Category: Consumer Health News Source Type: news
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