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Devastating brain injury

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https://www.readbyqxmd.com/read/29775701/lithium-posttreatment-alleviates-blood-brain-barrier-injury-after-intracerebral-hemorrhage-in-rats
#1
Weishan Li, Rui Li, Sha Zhao, Cheng Jiang, Zhen Liu, Xiaobo Tang
Vasogenic cerebral edema formation after blood brain barrier (BBB) damage aggravates the devastating consequences of intracerebral hemorrhage (ICH). The present study aims to probe into a therapeutic method on BBB preservation after ICH with a glycogen synthase kinase-3β (GSK-3β) inhibitor, lithium. Intrastriatal infusion of semicoagulated autologous whole blood or sham surgery was performed on male Sprague-Dawley (SD) rats (n = 208).Experimental animals received administration of 4,6-disubstitutedpyrrolo-pyrimidine (TWS119), lithium alone or in combination with a phosphatidylinositol 3-kinase inhibitor, wortmannin, after ICH...
May 15, 2018: Neuroscience
https://www.readbyqxmd.com/read/29750358/a-population-based-cost-effectiveness-study-of-early-genetic-testing-in-severe-epilepsies-of-infancy
#2
Katherine B Howell, Stefanie Eggers, Kim Dalziel, Jessica Riseley, Simone Mandelstam, Candace T Myers, Jacinta M McMahon, Amy Schneider, Gemma L Carvill, Heather C Mefford, Ingrid E Scheffer, A Simon Harvey
OBJECTIVE: The severe epilepsies of infancy (SEI) are a devastating group of disorders that pose a major care and economic burden on society; early diagnosis is critical for optimal management. This study sought to determine the incidence and etiologies of SEI, and model the yield and cost-effectiveness of early genetic testing. METHODS: A population-based study was undertaken of the incidence, etiologies, and cost-effectiveness of a whole exome sequencing-based gene panel (targeted WES) in infants with SEI born during 2011-2013, identified through electroencephalography (EEG) and neonatal databases...
May 11, 2018: Epilepsia
https://www.readbyqxmd.com/read/29744244/can-amantadine-ameliorate-neurocognitive-functions-after-subarachnoid-haemorrhage-a-preliminary-study
#3
Eren Fatma Akçıl, Özlem Korkmaz Dilmen, Hayriye Vehid, Yusuf Tunalı
Objective: Aneurysmal subarachnoid haemorrhage (SAH) may have devastating effects on patients. Motor and neurocognitive impairments may arise depending on the location and grade of the SAH. Although the effects of amantadine on neurocognitive function after traumatic brain injury have been widely studied to the best of our knowledge, their effects on recovery from SAH in humans have not been studied. The present study aimed to evaluate how amantadine influences improvement in neurocognitive function in patients with aneurysmal SAH over a period of six months...
April 2018: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/29727439/accuracy-of-computed-tomographic-perfusion-in-diagnosis-of-brain-death-a-prospective-cohort-study
#4
Marcin Sawicki, Joanna Sołek-Pastuszka, Katarzyna Chamier-Ciemińska, Anna Walecka, Romuald Bohatyrewicz
BACKGROUND This study was designed to determine diagnostic accuracy of computed tomographic perfusion (CTP) compared to computed tomographic angiography (CTA) for the diagnosis of brain death (BD). MATERIAL AND METHODS Whole-brain CTP was performed in patients diagnosed with BD and in patients with devastating brain injury with preserved brainstem reflexes. CTA was derived from CTP datasets. Cerebral blood flow (CBF) and volume (CBV) were calculated in all brain regions. CTP findings were interpreted as confirming diagnosis of BD (positive) when CBF and CBV in all ROIs were below 10 mL/100 g/min and 1...
May 4, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29679443/a-20-year-review-the-use-of-exception-from-informed-consent-and-waiver-of-informed-consent-in-emergency-research
#5
Lauren Klein, Johanna Moore, Michelle Biros
BACKGROUND: Due to the acuity and time sensitive needs of their clinical condition, patients presenting with certain emergent pathologies may lack capacity to provide meaningful prospective informed consent to participate in clinical research. For these reasons, these populations have often been excluded from research investigations. To mitigate this, regulations allowing Exception from Informed Consent (EFIC) (21 CFR 50.24) or Waiver of Informed Consent (WIC) (45 CFR 46.101) were developed in 1996...
April 21, 2018: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/29648983/enhancement-of-brain-d-serine-mediates-recovery-of-cognitive-function-after-tbi
#6
Sigal Liraz-Zaltsman, Barbara Slusher, Dana Atrakchi-Baranes, Kinneret Rosenblatt, Yael Friedman Levi, Efrat Leah Kesner, Alcino J Silva, Anat Biegon, Esther Shohami
Cognitive deficits, especially memory loss, are common and devastating neuropsychiatric sequelae of traumatic brain injury (TBI). The deficits may persist for a long time and may be accompanied by increased risk of developing early onset dementia. Past attempts to reverse the neuropsychological effects of brain injury with glutamate-N-methyl-D-aspartate (NMDA) antagonists failed to show any benefits or worsened the outcome, suggesting activation, rather than blockage, of the NMDA receptor (NMDAR) may be useful in the sub-acute period after TBI and stroke...
March 14, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29629830/molecular-dynamics-simulations-showing-1-palmitoyl-2-oleoyl-phosphatidylcholine-popc-membrane-mechanoporation-damage-under-different-strain-paths
#7
M A Murphy, Sungkwang Mun, M F Horstemeyer, M I Baskes, A Bakhtiary, Michelle C LaPlaca, Steven R Gwaltney, Lakiesha N Williams, R K Prabhu
Continuum finite element material models used for traumatic brain injury lack local injury parameters necessitating nanoscale mechanical injury mechanisms be incorporated. One such mechanism is membrane mechanoporation, which can occur during physical insults and can be devastating to cells, depending on the level of disruption. The current study investigates the strain state dependence of phospholipid bilayer mechanoporation and failure. Using molecular dynamics, a simplified membrane, consisting of 72 1-palmitoyl-2-oleoyl-phosphatidylcholine (POPC) phospholipids, was subjected to equibiaxial, 2:1 non-equibiaxial, 4:1 non-equibiaxial, strip biaxial, and uniaxial tensile deformations at a von Mises strain rate of 5...
April 9, 2018: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/29622334/pediatric-major-head-injury-not-a-minor-problem
#8
REVIEW
Aaron N Leetch, Bryan Wilson
Traumatic brain injury is a highly prevalent and devastating cause of morbidity and mortality in children. A rapid, stepwise approach to the traumatized child should proceed, addressing life-threatening problems first. Management focuses on preventing secondary injury from physiologic extremes such as hypoxemia, hypotension, prolonged hyperventilation, temperature extremes, and rapid changes in cerebral blood flow. Initial Glasgow Coma Score, hyperglycemia, and imaging are often prognostic of outcome. Surgically amenable lesions should be evacuated promptly...
May 2018: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/29619963/national-cancer-institute-workshop-on-proton-therapy-for-children-considerations-regarding-brainstem-injury
#9
REVIEW
Daphne Haas-Kogan, Daniel Indelicato, Harald Paganetti, Natia Esiashvili, Anita Mahajan, Torunn Yock, Stella Flampouri, Shannon MacDonald, Maryam Fouladi, Kry Stephen, John Kalapurakal, Stephanie Terezakis, Hanne Kooy, David Grosshans, Mike Makrigiorgos, Kavita Mishra, Tina Young Poussaint, Kenneth Cohen, Thomas Fitzgerald, Vinai Gondi, Arthur Liu, Jeff Michalski, Dragan Mirkovic, Radhe Mohan, Stephanie Perkins, Kenneth Wong, Bhadrasain Vikram, Jeff Buchsbaum, Larry Kun
PURPOSE: Proton therapy can allow for superior avoidance of normal tissues. A widespread consensus has been reached that proton therapy should be used for patients with curable pediatric brain tumor to avoid critical central nervous system structures. Brainstem necrosis is a potentially devastating, but rare, complication of radiation. Recent reports of brainstem necrosis after proton therapy have raised concerns over the potential biological differences among radiation modalities. We have summarized findings from the National Cancer Institute Workshop on Proton Therapy for Children convened in May 2016 to examine brainstem injury...
May 1, 2018: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29599706/lipoprotein-lipase-is-a-feature-of-alternatively-activated-microglia-and-may-facilitate-lipid-uptake-in-the-cns-during-demyelination
#10
Kimberley D Bruce, Sachi Gorkhali, Katherine Given, Alison M Coates, Kristen E Boyle, Wendy B Macklin, Robert H Eckel
Severe demyelinating disorders of the central nervous system (CNS) such as multiple sclerosis (MS), can be devastating for many young lives. To date, the factors resulting in poor remyelination and repair are not well understood, and reparative therapies that benefit MS patients have yet to be developed. We have previously shown that the activity and abundance of Lipoprotein Lipase (LPL)-the rate-limiting enzyme in the hydrolysis of triglyceride-rich lipoproteins-is increased in Schwann cells and macrophages following nerve crush injury in the peripheral nervous system (PNS), suggesting that LPL may help scavenge myelin-derived lipids...
2018: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29560495/material-properties-of-rat-middle-cerebral-arteries-at-high-strain-rates
#11
E David Bell, Matthew Converse, Haojie Mao, Ginu Unnikrishnan, Jaques Reifman, Kenneth L Monson
Traumatic brain injury (TBI), resulting from either impact- or non-impact blast-related mechanisms, is a devastating cause of death and disability. The cerebral blood vessels, which provide critical support for brain tissue in both health and disease, are commonly injured in TBI. However, little is known about how vessels respond to traumatic loading, particularly at rates relevant to blast. To better understand vessel responses to trauma, the objective of this project was to characterize the high-rate response of passive cerebral arteries...
March 19, 2018: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29550375/freezing-of-gait-promising-avenues-for-future-treatment
#12
REVIEW
Moran Gilat, Ana Lígia Silva de Lima, Bastiaan R Bloem, James M Shine, Jorik Nonnekes, Simon J G Lewis
Freezing of gait is a devastating symptom of Parkinson's disease and other forms of parkinsonism. It poses a major burden on both patients and their families, as freezing often leads to falls, fall-related injuries and a loss of independence. Treating freezing of gait is difficult for a variety of reasons: it has a paroxysmal and unpredictable nature; a multifaceted pathophysiology, with an interplay between motor elements (disturbed stepping mechanisms) and non-motor elements (cognitive decline, anxiety); and a complex (and likely heterogeneous) underlying neural substrate, involving multiple failing neural networks...
March 12, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29478776/cerebral-blood-vessel-damage-in-traumatic-brain-injury
#13
REVIEW
Kenneth L Monson, Matthew I Converse, Geoffrey T Manley
Traumatic brain injury is a devastating cause of death and disability. Although injury of brain tissue is of primary interest in head trauma, nearly all significant cases include damage of the cerebral blood vessels. Because vessels are critical to the maintenance of the healthy brain, any injury or dysfunction of the vasculature puts neural tissue at risk. It is well known that these vessels commonly tear and bleed as an immediate consequence of traumatic brain injury. It follows that other vessels experience deformations that are significant though not severe enough to produce bleeding...
February 19, 2018: Clinical Biomechanics
https://www.readbyqxmd.com/read/29473512/the-role-of-inflammatory-response-in-stroke-associated-programmed-cell-death
#14
K Duris, Z Splichal, M Jurajda
Stroke represents devastating pathology which is associated with a high morbidity and mortality. Initial damage caused directly by the onset of stroke, primary injury, may be eclipsed by secondary injury which may have a much more devastating effect on the brain. Primary injury is predominantly associated with necrotic cell death due to fatal insufficiency of oxygen and glucose. Secondary injury may on the contrary, lead apoptotic cell death due to structural damage which is not compatible with cellular functions or which may even represent the danger of malign transformation...
February 22, 2018: Current Neuropharmacology
https://www.readbyqxmd.com/read/29434566/assessment-of-platelet-function-in-traumatic-brain-injury-a-retrospective-observational-study-in-the-neuro-critical-care-setting
#15
Caroline Lindblad, Eric Peter Thelin, Michael Nekludov, Arvid Frostell, David W Nelson, Mikael Svensson, Bo-Michael Bellander
Background: Despite seemingly functional coagulation, hemorrhagic lesion progression is a common and devastating condition following traumatic brain injury (TBI), stressing the need for new diagnostic techniques. Multiple electrode aggregometry (MEA) measures platelet function and could aid in coagulopathy assessment following TBI. The aims of this study were to evaluate MEA temporal dynamics, influence of concomitant therapy, and its capabilities to predict lesion progression and clinical outcome in a TBI cohort...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29414883/possible-role-of-inflammation-and-galectin-3-in-brain-injury-after-subarachnoid-hemorrhage
#16
REVIEW
Hirofumi Nishikawa, Hidenori Suzuki
Aneurysmal subarachnoid hemorrhage (SAH) is known as one of the most devastating diseases in the central nervous system. In the past few decades, research on SAH has focused on cerebral vasospasm to prevent post-SAH delayed cerebral ischemia (DCI) and to improve outcomes. However, increasing evidence has suggested that early brain injury (EBI) is an important mechanism contributing to DCI, cerebral vasospasm as well as poor outcomes. Though the mechanism of EBI is very complex, inflammation is thought to play a pivotal role in EBI...
February 7, 2018: Brain Sciences
https://www.readbyqxmd.com/read/29410157/regulatory-accepted-drug-development-tools-are-needed-to-accelerate-innovative-cns-disease-treatments
#17
REVIEW
Stephen P Arnerić, Volker D Kern, Diane T Stephenson
Central Nervous System (CNS) diseases represent one of the most challenging therapeutic areas for successful drug approvals. Developing quantitative biomarkers as Drug Development Tools (DDTs) can catalyze the path to innovative treatments, and improve the chances of drug approvals. Drug development and healthcare management requires sensitive, reliable, validated, and regulatory accepted biomarkers and endpoints. This review highlights the regulatory paths and considerations for developing DDTs required to advance biomarker and endpoint use in clinical development (e...
May 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29397137/decision-making-in-perceived-devastating-brain-injury-a-call-to-explore-the-impact-of-cognitive-biases
#18
EDITORIAL
B Rohaut, J Claassen
No abstract text is available yet for this article.
January 2018: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29397121/management-of-perceived-devastating-brain-injury-after-hospital-admission-a-consensus-statement-from-stakeholder-professional-organizations
#19
D Harvey, J Butler, J Groves, A Manara, D Menon, E Thomas, M Wilson
Patients with severe grades of life-threatening brain injury are commonly characterized as having devastating brain injury (DBI), which we have defined as: 'any neurological condition that is assessed at the time of hospital admission as an immediate threat to life or incompatible with good functional recovery AND where early limitation or withdrawal of therapy is being considered'. The outcome in patients with DBI is often death or severe disability, and as a consequence rapid withdrawal of life sustaining therapies is commonly contemplated or undertaken...
January 2018: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29396300/traumatic-brain-injury-and-alzheimer-s-disease-the-cerebrovascular-link
#20
REVIEW
Jaime Ramos-Cejudo, Thomas Wisniewski, Charles Marmar, Henrik Zetterberg, Kaj Blennow, Mony J de Leon, Silvia Fossati
Traumatic brain injury (TBI) and Alzheimer's disease (AD) are devastating neurological disorders, whose complex relationship is not completely understood. Cerebrovascular pathology, a key element in both conditions, could represent a mechanistic link between Aβ/tau deposition after TBI and the development of post concussive syndrome, dementia and chronic traumatic encephalopathy (CTE). In addition to debilitating acute effects, TBI-induced neurovascular injuries accelerate amyloid β (Aβ) production and perivascular accumulation, arterial stiffness, tau hyperphosphorylation and tau/Aβ-induced blood brain barrier damage, giving rise to a deleterious feed-forward loop...
February 2018: EBioMedicine
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