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Mild Hypothermia treatment

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https://www.readbyqxmd.com/read/29327153/the-effect-of-therapeutic-mild-hypothermia-on-brain-microvascular-endothelial-cells-during-ischemia-reperfusion-injury
#1
Yao Chen, Lin Wang, Yun Zhang, Yaxiong Zhou, Wei Wei, Zhi Wan
BACKGROUND: To determine the cerebral protective effects of mild hypothermia (MH) on cerebral microcirculation. METHODS: We established ischemia-reperfusion (I/R) injury and MH treatment models with rat brain microvascular endothelial cells (RBMECs) in vitro and examined the apoptotic changes. The cultured RBMECs were randomly divided into the control group, I/R group, and MH group, which was further divided into two subgroups: intra-ischemia hypothermia (IIH) and post-ischemia hypothermia (PIH)...
January 11, 2018: Neurocritical Care
https://www.readbyqxmd.com/read/29318119/mild-hypothermia-therapy-for-moderate-or-severe-hypoxicischemic-encephalopathy-in-neonates
#2
Weihua Liao, Huiying Xu, Jing Ding, Hong Huang
Background: To study the nursing method of mild hypothermia therapy for moderate or severe hypoxic-ischemic encephalopathy (HIE) in neonates. Methods: According to the inclusion and exclusion criteria, 48 patients were selected from Nanfang Hospital from December 2015 to October 2016 and randomly divided into the control group (n=24) and observation group (n=24). The control group received routine treatment and nursing, while the observation group received the same treatment as the control group combined with mild hypothermia treatment and nursing...
January 2018: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/29312600/mild-hypothermia-modulates-the-expression-of-nestin-and-caspase-3-in-the-sub-granular-zone-and-improves-neurological-outcomes-in-rats-with-ischemic-stroke
#3
Dan Yu, Xueying Wang, Feng Zhou, Liang Wang, Guoshuai Yang, Wei Zhong, Ying Li, Zhiping Zhou, Aiyue Wang, Yanhui Zhou
We assessed neurological outcomes, infarct volume, and the expression of nestin and caspase-3 in the hippocampal dentate gyrus following middle cerebral artery occlusion (MCAO) followed by reperfusion, with mild hypothermia (MH) treatment at the onset of ischemia in a MCAO rat model. Reperfusion began 2 hours after the MCAO model was set-up. MH treatment began at the onset of ischemia and was maintained for 4 hours. We evaluated neurological deficit score, brain infarct volumes, along with the immunohistochemical staining of nestin and caspase-3 in the sub-granular zone of the injured hemisphere on the 1st, 3rd, 7th, and 14th day after the onset of ischemia...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29288014/efficacy-of-different-cooling-technologies-for-therapeutic-temperature-management-a-prospective-intervention-study
#4
Petra Sonder, Gladys N Janssens, Albertus Beishuizen, Connie L Henry, Jon C Rittenberger, Clifton W Callaway, Cameron Dezfulian, Kees H Polderman
BACKGROUND: Mild therapeutic hypothermia (32-36 °C) is associated with improved outcomes in patients with brain injury after cardiac arrest (CA). Various devices are available to induce and maintain hypothermia, but few studies have compared the performance of these devices. We performed a prospective study to compare four frequently used cooling systems in inducing and maintaining hypothermia followed by controlled rewarming. METHODS: We performed a prospective multi-centered study in ten ICU's in three hospitals within the UPMC health system...
December 26, 2017: Resuscitation
https://www.readbyqxmd.com/read/29278964/mild-hypothermia-protects-neurons-against-oxygen-glucose-deprivation-via-poly-adp-ribose-signaling
#5
Yubo Gao, Zhihua Wang, Weikun He, Wenjing Ma, Xinli Ni
OBJECTIVE: Hypothermia is a neuroprotective mechanism that has been validated for use in alleviating neonatal hypoxic-ischemic (HI) brain injury. Nevertheless, it is unclear whether poly (ADP-ribose) (PAR) signaling is involved in hypothermia-induced neuroprotection. In this study, we investigated whether mild hypothermia rescues oxygen glucose deprivation (OGD)-induced cell death by modifying PAR-relative protein expression, such as AIF, PARP-1, and PAR polymer, in primary-cultured hippocampal neurons...
December 26, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29247448/itraq-based-quantitative-proteomics-reveals-the-new-evidence-base-for-traumatic-brain-injury-treated-with-targeted-temperature-management
#6
Shi-Xiang Cheng, Zhong-Wei Xu, Tai-Long Yi, Hong-Tao Sun, Cheng Yang, Ze-Qi Yu, Xiao-Sa Yang, Xiao-Han Jin, Yue Tu, Sai Zhang
This study aimed to investigate the effects of targeted temperature management (TTM) modulation on traumatic brain injury (TBI) and the involved mechanisms using quantitative proteomics technology. SH-SY5Y and HT-22 cells were subjected to moderate stretch injury using the cell injury controller (CIC), followed by incubation at TTM (mild hypothermia, 32°C), or normothermia (37°C). The real-time morphological changes, cell cycle phase distribution, death, and cell viability were evaluated. Moderate TBI was produced by the controlled cortical impactor (CCI), and the effects of TTM on the neurological damage, neurodegeneration, cerebrovascular histopathology, and behavioral outcome were determined in vivo...
December 15, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/29223591/mild-hypothermia-protects-hippocampal-neurons-from-oxygen-glucose-deprivation-injury-through-inhibiting-caspase-3-activation
#7
Tianen Zhou, Hui Lin, Longyuan Jiang, Tao Yu, Chaotao Zeng, Juanhua Liu, Zhengfei Yang
Mild hypothermia (MH) is thought to be one of the most effective therapeutic methods to treat hypoxic-ischemic encephalopathy (HIE) after cardiac arrest (CA). However, its precise mechanisms remain unclear. In this research, hippocampal neurons were cultured and treated with mild hypothermia and Ac-DEVD-CHO after oxygen-glucose deprivation (OGD). The activity of caspase-3 was detected, in order to find the precise concentration of Ac-DEVD-CHO with the same protective role in OGD injury as MH treatment. Western blot and immunofluorescence staining were conducted to analyze the effects of MH and Ac-DEVD-CHO on the expressions of caspase-3, caspase-8, and PARP...
December 6, 2017: Cryobiology
https://www.readbyqxmd.com/read/29202815/normothermia-after-decompressive-surgery-for-space-occupying-middle-cerebral-artery-infarction-a-protocol-based-approach
#8
Jan Rahmig, Matthias Kuhn, Hermann Neugebauer, Eric Jüttler, Heinz Reichmann, Hauke Schneider
BACKGROUND: Moderate hypothermia after decompressive surgery might not be beneficial for stroke patients. However, normothermia may prove to be an effective method of enhancing neurological outcomes. The study aims were to evaluate the application of a pre-specified normothermia protocol in stroke patients after decompressive surgery and its impact on temperature load, and to describe the functional outcome of patients at 12 months after treatment. METHODS: We analysed patients with space-occupying middle cerebral artery (MCA) infarction treated with decompressive surgery and a pre-specified temperature management protocol...
December 4, 2017: BMC Neurology
https://www.readbyqxmd.com/read/29162267/the-prehospital-management-of-hypothermia-an-up-to-date-overview
#9
REVIEW
Frederike J C Haverkamp, Gordon G Giesbrecht, Edward C T H Tan
BACKGROUND: Accidental hypothermia concerns a body core temperature of less than 35°C without a primary defect in the thermoregulatory system. It is a serious threat to prehospital patients and especially injured patients, since it can induce a vicious cycle of the synergistic effects of hypothermia, acidosis and coagulopathy; referred to as the trauma triad of death. To prevent or manage deterioration of a cold patient, treatment of hypothermia should ideally begin prehospital. Little effort has been made to integrate existent literature about prehospital temperature management...
November 4, 2017: Injury
https://www.readbyqxmd.com/read/29151422/-successful-perform-of-prolonged-cardiopulmonary-and-cerebral-resuscitation-on-repeated-cardiac-arrest-one-case-report
#10
Guanghui He, Yanping Liang, Jianjun Jing, Xiaofeng Li, Xin Jin, Yicheng Yang, Shibin Lyu, Jiaojiao Lu
Cardiac arrest (CA) is the most serious clinical emergency situation and cardiopulmonary-cerebral resuscitation (CPCR) performed on site with high quality is the optional therapy for its management. It has been reported that prolonging the resuscitation time after 30-minute failed conventional cardiopulmonary resuscitation (CPR) could improve the in-hospital survival rate of CA patients, and how to improve the out-hospital survival rate and survival quality of these patients is a research hot focus at present...
November 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29113791/pd149163-induces-hypothermia-to-protect-against-brain-injury-in-acute-cerebral-ischemic-rats
#11
Teng-Fei Xue, Xu Ding, Juan Ji, Hui Yan, Ji-Ye Huang, Xu-Dong Guo, Jin Yang, Xiu-Lan Sun
Therapeutic hypothermia is a promising strategy for acute cerebral ischemia via physical or pharmacological methods. In this study, we pharmacologically induced hypothermia on Sprague Dawley rats by intraperitoneally injecting PD149163. We found that mild hypothermia was induced by PD149163 treatment without local cerebral blood flow (LCBF) alteration. To evaluate the neuroprotective effects of PD149163, TTC staining, HE staining and Nissl's staining were performed in our study. We found that PD149163 could prevent neuronal damage, and inhibit proliferation and activation of glial cells induced by ischemia...
October 23, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/29098600/a-model-based-on-the-pennes-bioheat-transfer-equation-is-valid-in-normal-brain-tissue-but-not-brain-tissue-suffering-focal-ischaemia
#12
Thomas Lillicrap, Murat Tahtalı, Andrew Neely, Xiaofei Wang, Andrew Bivard, Christian Lueck
Ischaemic stroke is a major public health issue in both developed and developing nations. Hypothermia is believed to be neuroprotective in cerebral ischaemia. Conversely, elevated brain temperature is associated with poor outcome after ischaemic stroke. Mechanisms of heat exchange in normally-perfused brain are relatively well understood, but these mechanisms have not been studied as extensively during focal cerebral ischaemia. A finite element model (FEM) of heat exchange during focal ischaemia in the human brain was developed, based on the Pennes bioheat equation...
November 2, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/29035834/synergistic-effect-of-mild-hypothermia-and-the-notch-inhibitor-dapt-against-post-stroke-seizures
#13
Guo-Shuai Yang, Xiao-Yan Zhou, Xue-Fang An, Xuan-Jun Liu, Yan-Jun Zhang, Dan Yu
Seizure is a serious complication of stroke, indicating poor prognosis. Notch signaling is associated with neuronal activity. Inhibition of Notch signaling suppresses seizure activity induced by kainic acid. The present study investigated the effect of the Notch inhibitor, DAPT, alone or in combination with mild hypothermia, on post-stroke seizures. A global cerebral ischemia (GCI) model was performed in Sprague Dawley (SD) male rats. Seizure activity was evaluated by the frequency of seizure attacks, seizure severity scores, and seizure discharges...
October 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28951276/early-transient-mild-hypothermia-attenuates-neurological-deficits-and-brain-damage-after-experimental-subarachnoid-hemorrhage-in-rats
#14
Nadine Lilla, Christoph Rinne, Judith Weiland, Thomas Linsenmann, Ralf-Ingo Ernestus, Thomas Westermaier
OBJECTIVE: Metabolic exhaustion in ischemic tissue is the basis for a detrimental cascade of cell damage. In the acute stage of subarachnoid hemorrhage (SAH), a sequence of global and focal ischemia occurs, threatening brain tissue to undergo ischemic damage. This study was conducted to investigate whether early therapy with moderate hypothermia can offer neuroprotection after experimental SAH. MATERIALS AND METHODS: 20 male Sprague-Dawley rats were subjected to SAH and treated by active cooling (34° C) or served as controls by continuous maintenance of normothermia (37...
September 23, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28947065/enhanced-neuroprotective-effect-of-mild-hypothermia-with-vpa-against-ethanol-mediated-neuronal-injury
#15
Sandeep Kumar Vishwakarma, Avinash Bardia, L Chandrakala, Sana Arshiya, Syed Ameer Basha Paspala, Vishnupriya Satti, Aleem Ahmed Khan
INTRODUCTION: Progress in understanding pathophysiological mechanisms and the development of targeted regenerative strategies have been hampered by the lack of predictive disease models, specifically for the conditions to which affected cell types are inaccessible. The present study has aimed to unearth the role of valproic acid (VPA) and mild hypothermia (MH) as promising strategy to enhance the neuroprotective mechanisms in undifferentiated and differentiated human neural precursor cells (hNPCs) against ethanol-induced damage...
September 14, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28933514/hypothermia-for-traumatic-brain-injury
#16
REVIEW
Sharon R Lewis, David Jw Evans, Andrew R Butler, Oliver J Schofield-Robinson, Phil Alderson
BACKGROUND: Hypothermia has been used in the treatment of brain injury for many years. Encouraging results from small trials and laboratory studies led to renewed interest in the area and some larger trials. OBJECTIVES: To determine the effect of mild hypothermia for traumatic brain injury (TBI) on mortality, long-term functional outcomes and complications. SEARCH METHODS: We ran and incorporated studies from database searches to 21 March 2016...
September 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28931834/mild-hypothermia-provides-treg-stability
#17
Marek- Trzonkowska Natalia, Piekarska Karolina, Filipowicz Natalia, Piotrowski Arkadiusz, Gucwa Magdalena, Vogt Katrin, Sawitzki Birgit, Siebert Janusz, Trzonkowski Piotr
Regulatory T cells (Tregs) play crucial role in maintenance of peripheral tolerance. Recent clinical trials confirmed safety and efficacy of Treg treatment of deleterious immune responses. However, Tregs lose their characteristic phenotype and suppressive potential during expansion ex vivo. Therefore, multiple research teams have been studding Treg biology in aim to improve their stability in vitro. In the current paper, we demonstrate that mild hypothermia of 33 °C induces robust proliferation of Tregs, preserves expression of FoxP3, CD25 and Helios, and prevents TSDR methylation during culture in vitro...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28931363/a-guideline-based-policy-to-decrease-intensive-care-unit-admission-rates-for-accidental-hypothermia
#18
Herman R Sequeira, Hesham E Mohamed, Neal Hakimi, Dorothy B Wakefield, Jonathan Fine
RATIONALE: Despite guidelines advising passive rewarming for mild accidental hypothermia (AH), patients are frequently admitted to intensive care unit (ICU) for active rewarming using a forced-air warming device. We implemented a new policy at our institution aimed at safely reducing ICU admissions for AH. We analyzed our practice pre- and post-policy intervention and compared our experiences with acute care hospitals in Connecticut. METHODS: A retrospective chart review was performed on 203 participants with AH identified by primary and secondary discharge codes...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28925524/hypothermia-increases-aquaporin-4-aqp4-plasma-membrane-abundance-in-human-primary-cortical-astrocytes-via-a-calcium-transient-receptor-potential-vanilloid-4-trpv4-and-calmodulin-mediated-mechanism
#19
Mootaz M Salman, Philip Kitchen, M Nicola Woodroofe, James E Brown, Roslyn M Bill, Alex C Conner, Matthew T Conner
Human aquaporin 4 (AQP4) is the primary water channel protein in brain astrocytes. Hypothermia is known to cause astrocyte swelling in culture, but the precise role of AQP4 in this process is unknown. Primary human cortical astrocytes were cultured under hypothermic (32 °C) or normothermic (37 °C) conditions. AQP4 transcript, total protein and surface-localized protein were quantified using RT-qPCR, sandwich ELISA with whole cell lysates or cell surface biotinylation, followed by ELISA analysis of the surface-localized protein, respectively...
September 19, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28895060/cerebral-tissue-oxidative-ischemia-reperfusion-injury-in-connection-with-experimental-cardiac-arrest-and-cardiopulmonary-resuscitation-effect-of-mild-hypothermia-and-methylene-blue
#20
Lars Wiklund, Ranjana Patnaik, Aruna Sharma, Adriana Miclescu, Hari S Sharma
The present investigation is an expansion of previous studies which all share a basic experimental protocol of a porcine-induced cardiac arrest (CA) of 12 min followed by 8 min of cardiopulmonary resuscitation (CPR), different experimental treatments (immediate as well as postponed induced mild hypothermia and administration of much or less cool intravenous fluids), and a follow-up period of 3 h after which the animals were sacrificed. Another group of animals was studied according to the same protocol after 12-min CA and "standard CPR...
September 11, 2017: Molecular Neurobiology
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