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https://www.readbyqxmd.com/read/29452613/the-role-of-plasma-membrane-calcium-atpases-pmcas-in-neurodegenerative-disorders
#1
REVIEW
Parvana Hajieva, Marius W Baeken, Bernd Moosmann
Selective degeneration of differentiated neurons in the brain is the unifying feature of neurodegenerative disorders such as Parkinson's disease (PD) or Alzheimer's disease (AD). A broad spectrum of evidence indicates that initially subtle, but temporally early calcium dysregulation may be central to the selective neuronal vulnerability observed in these slowly progressing, chronic disorders. Moreover, it has long been evident that excitotoxicity and its major toxic effector mechanism, neuronal calcium overload, play a decisive role in the propagation of secondary neuronal death after acute brain injury from trauma or ischemia...
January 10, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29452194/decompressive-craniectomy-protects-against-hippocampal-edema-and-behavioral-deficits-at-an-early-stage-of-a-moderately-controlled-cortical-impact-brain-injury-model-in-adult-male-rats
#2
Zonggang Hou, Runfa Tian, Feifei Han, Shuyu Hao, Weichuan Wu, Xiang Mao, Xiaogang Tao, Te Lu, Jinqian Dong, Yun Zhen, Baiyun Liu
A decompressive craniectomy (DC) has been shown to be a life-saving therapeutic treatment for traumatic brain injury (TBI) patients, which also might result in post-operative behavioral dysfunction. However, there is still no definite conclusion about whether the behavioral dysfunction already existed at an early stage after the DC operation or is just a long-term post-operation complication. Therefore, the aim of the present study was to analyze whether DC treatment was beneficial to behavioral function at an early stage post TBI...
February 13, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29446796/posttraumatic-headache
#3
Raquel Langdon, Sharief Taraman
After sustaining a concussion or mild traumatic brain injury, headaches are one of the most common complaints. The pathophysiologic changes that occur in the setting of injury likely contribute to or cause posttraumatic headaches. Posttraumatic headaches often present as migraine or tension-type headaches. Unlike pain from other types of injuries, headaches following mild traumatic brain injury are more likely to persist. Preexisting conditions such as migraine and mood disorders may influence posttraumatic headache and complicate management...
February 1, 2018: Pediatric Annals
https://www.readbyqxmd.com/read/29443022/detecting-behavioral-deficits-in-rats-after-traumatic-brain-injury
#4
Nicole Hausser, Kathia Johnson, Margaret A Parsley, Jutatip Guptarak, Heidi Spratt, Stacy L Sell
With the increasing incidence of traumatic brain injury (TBI) in both civilian and military populations, TBI is now considered a chronic disease; however, few studies have investigated the long-term effects of injury in rodent models of TBI. Shown here are behavioral measures that are well-established in TBI research for times early after injury, such as two weeks, until two months. Some of these methods have previously been used at later times after injury, up to one year, but by very few laboratories. The methods demonstrated here are a short neurological assessment to test reflexes, a Beam-Balance to test balance, a Beam-Walk to test balance and motor coordination, and a working memory version of the Morris water maze that can be sensitive to deficits in reference memory...
January 30, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29437246/early-movement-restriction-leads-to-enduring-disorders-in-muscle-and-locomotion
#5
Maxime Delcour, Vicky S Massicotte, Michaël Russier, Hélène Bras, Julie Peyronnet, Marie-Hélène Canu, Florence Cayetanot, Mary F Barbe, Jacques-Olivier Coq
Motor control and body representation in the central nervous system (CNS) as well as musculoskeletal architecture and physiology are shaped during development by sensorimotor experience and feedback, but the emergence of locomotor disorders during maturation and their persistence over time remain a matter of debate in the absence of brain damage. By using transient immobilization of the hind limbs, we investigated the enduring impact of postnatal sensorimotor restriction (SMR) on gait and posture on treadmill, age-related changes in locomotion, musculoskeletal histopathology and Hoffmann reflex in adult rats without brain damage...
February 13, 2018: Brain Pathology
https://www.readbyqxmd.com/read/29434726/effects-of-apolipoprotein-e-gene-polymorphism-on-the-intracellular-ca2-concentration-of-astrocytes-in-the-early-stages-post-injury
#6
Haitao Wu, Shuai Zhou, Hongxin Zhao, Yuyu Wang, Xiaozhong Chen, Xiaochuan Sun
The present study aimed to investigate the correlation between apolipoprotein E (APOE) polymorphisms and the intracellular concentration of Ca2+ in astrocytes in the early stages after an injury. The chondroitin sulfate region of three APOE alleles (ε2, ε3 and ε4) was obtained by reverse transcription-polymerase chain reaction (RT-PCR). A recombinant plasmid, pEGFP-N1-APOE, was constructed and identified by sequencing, while astrocytes were isolated from APOE gene-knockout mice and examined using immunocytochemistry...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29434719/ag490-ameliorates-early-brain-injury-via-inhibition-of-jak2-stat3-mediated-regulation-of-hmgb1-in-subarachnoid-hemorrhage
#7
Ji-Yang An, Hong-Gang Pang, Ting-Qin Huang, Jin-Ning Song, Dan-Dong Li, Yong-Lin Zhao, Xu-Dong Ma
High mobility group box 1 (HMGB1) is a classic damage-associated molecular pattern that has an important role in the pathological inflammatory response. In vitro studies have demonstrated that the Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) signaling pathway is involved in the regulation of HMGB1 expression, mediating the inflammatory response. Therefore, the purpose of the present study was to evaluate JAK2/STAT3 pathway involvement in the subarachnoid hemorrhage (SAH)-dependent regulation of HMGB1, using an in vivo rat model...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29432885/repetitive-brain-injury-of-juvenile-mice-impairs-environmental-enrichment-induced-modulation-of-rem-sleep-in-adulthood
#8
Jeremy C Borniger, Kyra Ungerleider, Ning Zhang, Kate Karelina, Ulysses J Magalang, Zachary M Weil
Traumatic brain injuries (TBI) are a common and costly ongoing public health concern. Injuries that occur during childhood development can have particularly profound and long-lasting effects. One common consequence and potential mediator of negative outcomes of TBI is sleep disruption which occurs in a substantial proportion of TBI patients. These individuals report greater incidences of insomnia and sleep fragmentation combined with a greater overall sleep requirement meaning that many patients are chronically sleep-deprived...
February 9, 2018: Neuroscience
https://www.readbyqxmd.com/read/29432249/pediatric-traumatic-brain-injury-and-concussion
#9
Meeryo Choe, Karen M Barlow
PURPOSE OF REVIEW: This article summarizes the impact and complications of mild traumatic brain injury and concussion in children and outlines the recent evidence for its assessment and early management. Useful evidence-based management strategies are provided for children who have a typical recovery following concussion as well as for those who have persistent postconcussion syndrome. Cases are used to demonstrate the commonly encountered pathologies of headache, cognitive issues, and mood disturbances following injury...
February 2018: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/29429559/epo-improved-neurologic-outcome-in-rat-pups-late-after-traumatic-brain-injury
#10
Michelle E Schober, Daniela F Requena, Christopher K Rodesch
In adult rats, erythropoietin improved outcomes early and late after traumatic brain injury, associated with increased levels of Brain Derived Neurotrophic Factor. Using our model of pediatric traumatic brain injury, controlled cortical impact in 17-day old rats, we previously showed that erythropoietin increased hippocampal neuronal fraction in the first two days after injury. Erythropoietin also decreased activation of caspase3, an apoptotic enzyme modulated by Brain Derived Neurotrophic Factor, and improved Novel Object Recognition testing 14 days after injury...
February 8, 2018: Brain & Development
https://www.readbyqxmd.com/read/29428344/the-effects-of-timing-and-intensity-of-neurorehabilitation-on-functional-outcome-after-traumatic-brain-injury-a-systematic-review-meta-analysis
#11
REVIEW
Marsh Königs, Eva A Beurskens, Lian Snoep, Erik J A Scherder, Jaap Oosterlaan
OBJECTIVE: To systematically review evidence on the effects of timing and intensity of neurorehabilitation on the functional recovery of patients with moderate to severe traumatic brain injury (TBI) and aggregate the available evidence using meta-analytic methods. DATA SOURCES: Pubmed, Embase, PsycINFO and Cochrane Database. DATA SELECTION: Electronic databases were searched for prospective controlled clinical trials assessing the effect of timing or intensity of multidisciplinary neurorehabilitation programs on functional outcome of patients with moderate or severe TBI...
February 8, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29427384/lingo-1-antibody-ameliorates-myelin-impairment-and-spatial-memory-deficits-in-the-early-stage-of-5xfad-mice
#12
Di Wu, Xiang Tang, Li-Hua Gu, Xiao-Li Li, Xin-Yang Qi, Feng Bai, Xiao-Chun Chen, Jian-Zhi Wang, Qing-Guo Ren, Zhi-Jun Zhang
AIMS: Multiple evidence has indicated that myelin injury is common in Alzheimer's disease (AD). However, whether myelin injury is an early event in AD and the relationship between it and cognitive function is still elusive. METHODS: Spatial memory of 5XFAD mice was determined by Morris water maze at 1 and 3 months old. Meanwhile, the deposition of Aβ, the expression of myelin basic protein (MBP), LINGO-1, NgR, and myelin ultrastructure in many memory-associated brain regions were detected in one-month-old and three-month-old mice (before and after LINGO-1 antibody administration) using immunostaining, Western blot (WB), and transmission electron microscopy (TEM), respectively...
February 9, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29427321/effects-of-sevoflurane-preconditioning-on-microglia-macrophage-dynamics-and-phagocytosis-profile-against-cerebral-ischemia-in-rats
#13
Dan-Dan Dang, Hexige Saiyin, Qiong Yu, Wei-Min Liang
AIM: The effects of sevoflurane on microglia/macrophages, promoting or suppressing their activation, remains controversy. We aimed to determine whether sevoflurane preconditioning can protect brain via changing microglia/macrophage dynamics and phagocytosis profile after ischemia. METHODS: The impact of sevoflurane preconditioning was evaluated on microglia/macrophage migration, phagocytosis and proliferation altogether from day 1 to day 7 after transient middle cerebral arterial occlusion (tMCAO) in rats...
February 9, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29426806/neonatal-epilepsies-clinical-management
#14
REVIEW
Marie-Coralie Cornet, Tristan T Sands, Maria Roberta Cilio
Whereas the majority of seizures in neonates are related to acute brain injury, a substantial minority are the first symptom of a neonatal-onset epilepsy, often linked to a pathogenic genetic variant. This defect may disrupt cortical development (e.g., lissencephaly, focal cortical dysplasia), lead to metabolic changes (e.g., pyridoxine-dependent epilepsy, sulfite oxidase deficiency) or lead to cortical dysfunction without metabolic or macroscopic structural changes (e.g., channelopathies, STXBP1). Historically, studies on treatment response and long-term consequences of neonatal seizures have lumped all etiologies together...
January 31, 2018: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29426320/supporting-play-exploration-and-early-developmental-intervention-versus-usual-care-to-enhance-development-outcomes-during-the-transition-from-the-neonatal-intensive-care-unit-to-home-a-pilot-randomized-controlled-trial
#15
Stacey C Dusing, Tanya Tripathi, Emily C Marcinowski, Leroy R Thacker, Lisa F Brown, Karen D Hendricks-Muñoz
BACKGROUND: While therapy services may start in the Neonatal Intensive Care Unit (NICU) there is often a gap in therapy after discharge. Supporting Play Exploration and Early Development Intervention (SPEEDI) supports parents, helping them build capacity to provide developmentally supportive opportunities starting in the NICU and continuing at home. The purpose of this single blinded randomized pilot clinical trial was to evaluate the initial efficacy of SPEEDI to improve early reaching and exploratory problem solving behaviors...
February 9, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29425056/human-brain-trauma-severity-is-associated-with-lectin-complement-pathway-activation
#16
Daiana De Blasio, Stefano Fumagalli, Franca Orsini, Laura Neglia, Carlo Perego, Fabrizio Ortolano, Elisa R Zanier, Edoardo Picetti, Marco Locatelli, Nino Stocchetti, Luca Longhi, Peter Garred, Maria-Grazia De Simoni
We explored the involvement of the lectin pathway of complement in post-traumatic brain injury (TBI) pathophysiology in humans. Brain samples were obtained from 28 patients who had undergone therapeutic contusion removal, within 12 h (early) or from >12 h until five days (late) from injury, and from five non-TBI patients. Imaging analysis indicated that lectin pathway initiator molecules (MBL, ficolin-1, ficolin-2 and ficolin-3), the key enzymes MASP-2 and MASP-3, and the downstream complement components (C3 fragments and TCC) were present inside and outside brain vessels in all contusions...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29420761/chinese-military-evaluation-of-a-portable-near-infrared-detector-of-traumatic-intracranial-hematomas
#17
Chun-Yang Liang, Yang Yang, Chun-Sen Shen, Hai-Jiang Wang, Nai-Ming Liu, Zhi-Wen Wang, Feng-Lei Zhu, Ru-Xiang Xu
Introduction: Secondary brain injury is the main cause of mortality from traumatic brain injury (TBI). One hallmark of TBI is intracranial hemorrhage, which occurs in 40-50% of severe TBI cases. Early identification of intracranial hematomas in TBI patients allows early surgical evacuation and can reduce the case fatality rate of TBI. As pre-hospital care is the weakest part of Chinese emergency care, there is an urgent need for a capability to detect brain hematomas early. In China, in addition to preventing injuries and diseases in military staff and in enhancing the military armed forces during war, military medicine participates in actions such as emergency public health crises, natural disasters, emerging conflicts, and anti-terrorist campaigns during peacetime...
February 6, 2018: Military Medicine
https://www.readbyqxmd.com/read/29420701/cerebellar-functional-connectivity-in-term-and-very-preterm-born-infants
#18
Charlotte S Herzmann, Abraham Z Snyder, Jeanette K Kenley, Cynthia E Rogers, Joshua S Shimony, Christopher D Smyser
Cortical resting state networks have been consistently identified in infants using resting state-functional connectivity magnetic resonance imaging (rs-fMRI). Comparable studies in adults have demonstrated cerebellar components of well-established cerebral networks. However, there has been limited investigation of early cerebellar functional connectivity. We acquired non-sedated rs-fMRI data in the first week of life in 57 healthy, term-born infants and at term-equivalent postmenstrual age in 20 very preterm infants (mean birth gestational age 27 ± 2 weeks) without significant cerebral or cerebellar injury...
February 6, 2018: Cerebral Cortex
https://www.readbyqxmd.com/read/29420102/family-appraisal-of-paediatric-acquired-brain-injury-a-social-work-clinical-intervention-trial
#19
Lyndal Hickey, Vicki Anderson, Stephen Hearps, Brigid Jordan
OBJECTIVE: To compare the efficacy of a new intervention 'Family Forward' with 'Usual Care' social work practice in optimising family appraisal of a child's acquired brain injury to ensure better adaptation during the inpatient rehabilitation phase of care and early transition home. RESEARCH DESIGN: Single site, prospective, sequential comparison group design. METHODS AND PROCEDURES: Families were recruited on admission to an inpatient rehabilitation service based at a tertiary paediatric hospital...
February 8, 2018: Developmental Neurorehabilitation
https://www.readbyqxmd.com/read/29415332/ccl23-a-new-cc-chemokine-involved-in-human-brain-damage
#20
Alba Simats, Teresa García-Berrocoso, Anna Penalba, Dolors Giralt, Gemma Llovera, Yinghua Jiang, Laura Ramiro, Alejandro Bustamante, Elena Martinez-Saez, Francesc Canals, Xiaoying Wang, Arthur Liesz, Anna Rosell, Joan Montaner
BACKGROUND: CCL23 role in the inflammatory response after acute brain injuries remains elusive. Here, we evaluated whether CCL23 blood levels associate with acquired cerebral lesions and determined CCL23 predictive capacity for assessing stroke prognosis. We used pre-clinical models to study the CCL23 homologous chemokines in rodents, CCL9 and CCL6. METHODS: Baseline CCL23 blood levels were determined on 245 individuals, including ischemic strokes (IS), stroke-mimics and controls...
February 7, 2018: Journal of Internal Medicine
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