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Hypothermia neuroprotection

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https://www.readbyqxmd.com/read/29773975/cold-shock-induced-protein-rbm3-but-not-mild-hypothermia-protects-human-sh-sy5y-neuroblastoma-cells-from-mpp-induced-neurotoxicity
#1
Hai-Jie Yang, Xiang Shi, Fei Ju, Bei-Ning Hao, Shuang-Ping Ma, Lei Wang, Bin-Feng Cheng, Mian Wang
The cold shock protein RBM3 can mediate mild hypothermia-related protection in neurodegeneration such as Alzheimer's disease. However, it remains unclear whether RBM3 and mild hypothermia provide same protection in model of Parkinson's disease (PD), the second most common neurodegenerative disorder. In this study, human SH-SY5Y neuroblastoma cells subjected to insult by 1-methyl-4-phenylpyridinium (MPP+ ) served as an in-vitro model of PD. Mild hypothermia (32°C) aggravated MPP+ -induced apoptosis, which was boosted when RBM3 was silenced by siRNA...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29764541/-tianjin-characteristics-of-integrated-traditional-chinese-and-western-medicine-in-first-aid-medical-system
#2
Zhijun Li
Tianjin, as the earliest city to open up, the exchange of Chinese and Western cultures also started earlier. Therefore, today's emergency medicine system with integrated features of Chinese and Western medicine is formed. Professor Wang Jinda, who works in Tianjin First Center Hospital, makes the theory of "treating bronchitis and treating diseases" and "three methods of three syndromes" for the treatment of severe diseases such as sepsis. The surgical aspect is the treatment of acute abdomen with the combination of Chinese and Western medicine which is proposed by Academician Wu Xianzhong who worked in Tianjin Nankai Hospital...
May 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29747886/therapeutic-hypothermia-how-can-we-optimize-this-therapy-to-further-improve-outcomes
#3
REVIEW
Girija Natarajan, Abbot Laptook, Seetha Shankaran
Neonatal hypoxic-ischemic encephalopathy remains associated with considerable death and disability. In multiple randomized controlled trials, therapeutic hypothermia for neonatal moderate or severe hypoxic-ischemic encephalopathy among term infants has been shown to be safe and effective in reducing death and disability in survivors. In this article, the current status of infant and childhood outcomes following this therapy is reviewed. The clinical approaches that may help to optimize this innovative neuroprotective therapy are presented...
June 2018: Clinics in Perinatology
https://www.readbyqxmd.com/read/29733822/cardiopulmonary-bypass-glial-fibrillary-acidic-protein-correlates-with-neurocognitive-skills
#4
Luca Vedovelli, Massimo Padalino, Agnese Suppiej, Stefano Sartori, Gianclaudio Falasco, Manuela Simonato, Virgilio P Carnielli, Giovanni Stellin, Paola Cogo
BACKGROUND: Neuro-cognitive deficits at school starting age may affect as many as 50% of children who underwent cardiac surgery for complex congenital heart diseases (CHD). The aim of this study was to identify which phases of cardiopulmonary bypass (CPB) are associated with an increased risk of impaired neurodevelopmental skills in children with complex CHD. This was assessed by means of glial fibrillary acidic protein (GFAP) plasma levels during CPB for CHD surgery, as a marker of neurological insult...
May 4, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29732456/a-quality-initiative-for-optimal-therapeutic-hypothermia-during-transport-for-neonates-with-neonatal-encephalopathy
#5
Stephanie L Bourque, Stephanie A Meier, Claire Palmer, Diane L Melara, Theresa R Grover, Cassidy A Delaney
Introduction: Neuroprotection with therapeutic hypothermia (TH) is standard of care for neonatal encephalopathy (NE) and decreases death and neurodevelopmental disability. TH initiated shortly after birth insult results in greater neuroprotection compared with delayed initiation. Methods: Quality improvement methodology was used to improve temperature control during transport to a level IV neonatal intensive care unit. We included neonates with NE transported to a single institution for TH from 2010 to 2016...
March 2018: Pediatric Quality & Safety
https://www.readbyqxmd.com/read/29725319/nitric-oxide-synthase-inhibition-as-a-neuroprotective-strategy-following-hypoxic-ischemic-encephalopathy-evidence-from-animal-studies
#6
REVIEW
Laurent M A Favié, Arlette R Cox, Agnes van den Hoogen, Cora H A Nijboer, Cacha M P C D Peeters-Scholte, Frank van Bel, Toine C G Egberts, Carin M A Rademaker, Floris Groenendaal
Background: Hypoxic-ischemic encephalopathy following perinatal asphyxia is a leading cause of neonatal death and disability worldwide. Treatment with therapeutic hypothermia reduced adverse outcomes from 60 to 45%. Additional strategies are urgently needed to further improve the outcome for these neonates. Inhibition of nitric oxide synthase (NOS) is a potential neuroprotective target. This article reviews the evidence of neuroprotection by nitric oxide (NO) synthesis inhibition in animal models...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29710738/medico-legal-implications-of-hypothermic-neuroprotection-in-the-newborn
#7
S M Donn, J M Fanaroff
Hypoxic-ischemic encephalopathy (HIE) continues to be a significant source of long term neurological sequelae in infants born at or near term. In the past decade, selective head or whole body cooling has shown promising benefit in ameliorating some of the brain injury from intrapartum asphyxial insults and has become standard care in most developed countries. A decision to offer neuroprotective hypothermia (NPH) may engender subsequent litigation because it presupposes an acute intrapartum injury. Conversely, failing to offer cooling may be interpreted as a violation in the standard of care...
April 24, 2018: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/29707342/aortic-arch-repair-under-moderate-hypothermic-circulatory-arrest-with-or-without-antegrade-cerebral-perfusion-based-on-the-extent-of-repair
#8
Sung Jun Park, Bo Bae Jeon, Hee Jung Kim, Joon Bum Kim
Background: For aortic-arch repair, moderate hypothermic circulatory arrest (HCA) have shown favorable outcomes over conventional deep HCA when coupled with antegrade cerebral perfusion (ACP); however, recent studies have shown that ACP may not be essential when circulatory arrest time is less than 30 minutes. This study aims to evaluate the stratified arch repair strategy of moderate HCA with or without ACP based on the extent of procedure. Methods: Consecutive 138 patients (63 female; mean age, 60...
March 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29681183/neonatal-hypoxic-ischemic-encephalopathy-emerging-therapeutic-strategies-based-on-pathophysiologic-phases-of-the-injury
#9
Qiuli Wang, Hongyan Lv, Lixin Lu, Pengshun Ren, Lianxiang Li
Neonatal hypoxic ischemic encephalopathy (HIE) is an important cause of neonatal death and disability. At present, there is no unified standard and specialized treatment method for neonatal HIE. In clinical practice, we have found that a gap remains between preclinical medical research and clinical application in treatment of neonatal HIE. To promote an organic combination of preclinical research and clinical application, we propose the different phases as intervention targets, based on the pathophysiologic changes in phases I, II, and III of neonatal HIE; moreover, we suggest transformative medicine as a principle that may improve the therapeutic effect by blocking the progression of the disease to an irreversible stage...
April 22, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29667473/harnessing-neuroplasticity-modern-approaches-and-clinical-future
#10
Andrew Octavian Sasmita, Joshua Kuruvilla, Anna Pick Kiong Ling
Neurological diseases and injuries to the nervous system may cause inadvertent damage to neuronal and synaptic structures. Such phenomenon would catastrophically accumulate, leading to the development of neurological and neurodegenerative disorders which might affect memory, cognition, and motoric functions. The body has various negative feedback systems which are able to induce beneficial neuroplastic changes in mediating some neuronal damage, however, such efforts are often not enough to ameliorate the derogatory changes...
April 18, 2018: International Journal of Neuroscience
https://www.readbyqxmd.com/read/29660115/a-working-model-for-hypothermic-neuroprotection
#11
Guido Wassink, Joanne O Davidson, Christopher A Lear, Sandra E Juul, Frances Northington, Laura Bennet, Alistair J Gunn
Therapeutic hypothermia significantly improves survival without disability in near-term and full-term newborns with moderate-severe hypoxic-ischaemic encephalopathy. However, hypothermic neuroprotection is incomplete. The challenge now is to find ways to further improve outcomes. One major limitation to progress is that the specific mechanisms of hypothermia are only partly understood. Evidence supports the concept that therapeutic cooling suppresses multiple extracellular death signals, including intracellular pathways of apoptotic and necrotic cell death and inappropriate microglial activation...
April 16, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29649465/therapeutic-time-window-and-regulation-of-autophagy-by-mild-hypothermia-after-intracerebral-hemorrhage-in-rats
#12
Feifei Song, Cen Guo, Yang Geng, Xuqing Wu, Wei Fan
Although recent studies have shown that mild hypothermia has neuroprotective effects on intracerebral hemorrhage (ICH), the therapeutic time window of the therapy and the role of autophagy as a potential neuroprotective mechanism remain unclear. This study was aimed to investigate the appropriate time window of mild hypothermia and the regulation of autophagy during the treatment in a rat model of autologous blood-injected ICH injury. The rats were divided into Sham, normothermic (NT) and hypothermic (HT) groups...
April 9, 2018: Brain Research
https://www.readbyqxmd.com/read/29648595/progesterone-as-a-postnatal-prophylactic-agent-for-encephalopathy-caused-by-prenatal-hypoxic-ischemic-insult
#13
Yoshimasa Kawarai, Hirokazu Tanaka, Tatsuya Kobayashi, Makio Shozu
Brain damage caused by hypoxic ischemic insult during the perinatal period causes hypoxic ischemic encephalopathies (HIEs). Therapeutic hypothermia is indicated for HIE, but since the therapeutic burden is large for its limited therapeutic effectiveness, another strategy is needed. Progesterone (P4) plays a neuroprotective role through the actions of its metabolite, allopregnanolone (Allo), on P4 receptor, GABA (γ-aminobutyric acid)A receptors or both. We examined the therapeutic potential of P4 using a newborn rat model of HIE...
April 10, 2018: Endocrinology
https://www.readbyqxmd.com/read/29608502/xenon-an-emerging-neuroprotectant-with-potential-application-for-cardiac-arrest-care
#14
Mohammad Roostan, William H Frishman
Xenon is an inert, highly polarizable noble gas with demonstrated safety and application in general anesthesia for over fifty years. A potent inhibitor of the N-methyl-D-aspartate subtype of glutamate receptors, xenon has a well-documented ameliorating effect on excitotoxic neuronal injury in numerous cellular and animal models of hypoxic-ischemic brain injury. The most important determinant of overall survival and morbidity in out-of-hospital cardiac arrest is the severity of neurological injury. The only approved neuroprotective strategy in this setting is mild therapeutic hypothermia, which has demonstrated significant, albeit modest, improvements in mortality...
March 30, 2018: Cardiology in Review
https://www.readbyqxmd.com/read/29580655/protection-of-the-rat-brain-from-hypothermic-circulatory-arrest-injury-by-a-chipmunk-protein
#15
Xuan Jiang, Tianxiang Gu, Yu Liu, Chun Wang, Enyi Shi, Guangwei Zhang, Zongyi Xiu
OBJECTIVES: The study objectives were to test the hypothesis that special protein exists in hibernating chipmunk albumin and whether this protein has a neuroprotective effect in Sprague-Dawley rats during deep hypothermia circulatory arrest. METHODS: Forty chipmunks were allocated into a hibernation group and an active group (20 chipmunks in each group). Special protein was detected and isolated from hibernating chipmunk albumin. Forty Sprague-Dawley rats were randomly divided into a sham group, deep hypothermia circulatory arrest group, special protein group, and naloxone group (10 rats in each group)...
February 24, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29562588/pretreatment-with-group-ii-metabotropic-glutamate-receptor-agonist-ly379268-protects-neonatal-rat-brains-from-oxidative-stress-in-an-experimental-model-of-birth-asphyxia
#16
Ewelina Bratek, Apolonia Ziembowicz, Elzbieta Salinska
Hypoxia-ischemia (H-I) at the time of birth may cause neonatal death or lead to persistent brain damage. The search for an effective treatment of asphyxiated infants has not resulted in an effective therapy, and hypothermia remains the only available therapeutic strategy. Among possible experimental therapies, the induction of ischemic tolerance is promising. Recent investigations have shown that activation of group II metabotropic glutamate receptors (mGluR2/3) can provide neuroprotection against H-I, but the mechanism of this effect is not clear...
March 17, 2018: Brain Sciences
https://www.readbyqxmd.com/read/29557357/glia-and-hemichannels-key-mediators-of-perinatal-encephalopathy
#17
REVIEW
Robert Galinsky, Joanne O Davidson, Justin M Dean, Colin R Green, Laura Bennet, Alistair J Gunn
Perinatal encephalopathy remains a major cause of disability, such as cerebral palsy. Therapeutic hypothermia is now well established to partially reduce risk of disability in late preterm/term infants. However, new and complementary therapeutic targets are needed to further improve outcomes. There is increasing evidence that glia play a key role in neural damage after hypoxia-ischemia and infection/inflammation. In this review, we discuss the role of astrocytic gap junction (connexin) hemichannels in the spread of neural injury after hypoxia-ischemia and/or infection/inflammation...
February 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/29556208/raised-plasma-neurofilament-light-protein-levels-are-associated-with-abnormal-mri-outcomes-in-newborns-undergoing-therapeutic-hypothermia
#18
Divyen K Shah, Vennila Ponnusamy, Jane Evanson, Olga Kapellou, Georgia Ekitzidou, Neelam Gupta, Paul Clarke, Adina T Michael-Titus, Ping K Yip
Aims and hypothesis: Hypoxic-ischemic encephalopathy (HIE) remains an important cause of death and disability in newborns. Mild therapeutic hypothermia (TH) is safe and effective; however, there are no tissue biomarkers available at the bedside to select babies for treatment. The aim of this study was to show that it is feasible to study plasma neurofilament light (NfL) levels from newborns and to evaluate their temporal course. Hypothesis: Raised plasma NFL protein levels from newborns who undergo TH after HIE are associated with abnormal MRI outcomes...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29519539/autonomic-dysfunction-in-neonates-with-hypoxic-ischemic-encephalopathy-undergoing-therapeutic-hypothermia-impairs-physiological-responses-to-routine-care-events
#19
Heather Campbell, Rathinaswamy B Govindan, Srinivas Kota, Tareq Al-Shargabi, Marina Metzler, Nickie Andescavage, Taeun Chang, Gilbert Vezina, Adre du Plessis, An N Massaro
OBJECTIVE: To evaluate whether infants with hypoxic-ischemic encephalopathy and evidence of autonomic dysfunction have aberrant physiological responses to care events that could contribute to evolving brain injury. STUDY DESIGN: Continuous tracings of heart rate (HR), blood pressure (BP), cerebral near infrared spectroscopy, and video electroencephalogram data were recorded from newborn infants with hypoxic-ischemic encephalopathy who were treated with hypothermia...
May 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29514165/high-dose-erythropoietin-for-asphyxia-and-encephalopathy-heal-a-randomized-controlled-trial-background-aims-and-study-protocol
#20
Sandra E Juul, Bryan A Comstock, Patrick J Heagerty, Dennis E Mayock, Amy M Goodman, Stephanie Hauge, Fernando Gonzalez, Yvonne W Wu
BACKGROUND: Hypoxic-ischemic encephalopathy (HIE) remains an important cause of neonatal death and frequently leads to significant long-term disability in survivors. Therapeutic hypothermia, while beneficial, still leaves many treated infants with lifelong disabilities. Adjunctive therapies are needed, and erythropoietin (Epo) has the potential to provide additional neuroprotection. OBJECTIVES: The aim of this study was to review the current incidence, mechanism of injury, and sequelae of HIE, and to describe a new phase III randomized, placebo-controlled trial of Epo neuroprotection in term and near-term infants with moderate to severe HIE treated with therapeutic hypothermia...
March 7, 2018: Neonatology
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