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https://www.readbyqxmd.com/read/29151166/t2-weighted-images-are-superior-to-other-mr-image-types-for-the-determination-of-diffuse-intrinsic-pontine-glioma-intratumoral-heterogeneity
#1
Stephen Harward, S Harrison Farber, Michael Malinzak, Oren Becher, Eric M Thompson
PURPOSE: Diffuse intrinsic pontine glioma (DIPG) remains the main cause of death in children with brain tumors. Given the inefficacy of numerous peripherally delivered agents to treat DIPG, convection enhanced delivery (CED) of therapeutic agents is a promising treatment modality. The purpose of this study was to determine which MR imaging type provides the best discrimination of intratumoral heterogeneity to guide future stereotactic implantation of CED catheters into the most cellular tumor regions...
November 18, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29151095/violent-behavior
#2
Sophia Sopromadze, Alexander Tsiskaridze
Violence is a significant public health problem representing one of the leading causes of death worldwide for people aged 15-44 years. Although violence and aggression are more frequent in adolescence and early adult life and decline with advancing age, these conditions can still develop for the first time in old age especially in association with organic brain disorder. Rates of violent death vary according to country income levels and are twice as higher in low- to middle-income countries than in high-income countries...
2018: Frontiers of Neurology and Neuroscience
https://www.readbyqxmd.com/read/29150951/inflammasome-its-role-in-traumatic-brain-and-spinal-cord-injury
#3
REVIEW
Keywan Mortezaee, Neda Khanlarkhani, Cordian Beyer, Adib Zendedel
Traumatic brain injury (TBI) and spinal cord injury (SCI) are pathological events that lead to neuropathological conditions which have in consequence the initiation of pro-inflammatory cytokine production. Neuroinflammation plays a key role in the secondary phase of both TBI and SCI after initial cell death. Activation of cytoplasmic inflammasome complexes is regarded as the essential step of neuroinflammation and a key trigger for neuronal death called pyroptosis. Inflammasome complexes are involved in activation of caspase-1 which catalyzes the cleavage of pro-interleukins into their active forms (including interleukin-18 (IL-18) and IL-1β)...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150919/a-focus-on-the-beneficial-effects-of-alpha-synuclein-and-a-re-appraisal-of-synucleinopathies
#4
Larisa Ryskalin, Carla L Busceti, Fiona Limanaqi, Francesca Biagioni, Stefano Gambardella, Francesco Fornai
Alpha synuclein (α-syn) belongs to a class of proteins which are commonly considered to play a detrimental role in neuronal survival. This assumption is based on the occurrence of a severe neuronal degeneration in patients carrying a multiplication of the α-syn gene (SNCA) and in a variety of experimental models, where overexpression of α-syn leads to cell death and neurological impairment. In these conditions, a higher amount of normally structured α-syn produces a damage, which is even worse compared with that produced by α-syn owing an abnormal structure (as occurring following point gene mutations)...
November 16, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/29150873/survival-in-patients-with-parkinson-s-disease-after-deep-brain-stimulation-or-medical-management
#5
Frances M Weaver, Kevin T Stroupe, Bridget Smith, Beverly Gonzalez, Zhiping Huo, Lishan Cao, Dolores Ippolito, Kenneth A Follett
OBJECTIVE: Deep brain stimulation has been shown to have a significant long-term beneficial effect on motor function. However, whether it affects survival is not clear. In this study, we compared survival rates for Parkinson's disease (PD) patients who underwent deep brain stimulation (DBS) with those who were medically managed. METHODS: A retrospective analysis of Veterans Affairs and Medicare administrative data of veterans with PD who received DBS and were propensity score matched to a cohort of veterans with PD who did not receive DBS between 2007-2013...
November 18, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29150743/differential-response-of-neural-cells-to-trauma-induced-swelling-in-vitro
#6
A R Jayakumar, M Taherian, K S Panickar, N Shamaladevi, M E Rodriguez, B G Price, M D Norenberg
Brain edema and the associated increase in intracranial pressure are major consequences of traumatic brain injury (TBI) that accounts for most early deaths after TBI. We recently showed that acute severe trauma to cultured astrocytes results in cell swelling. We further examined whether trauma induces cell swelling in neurons and microglia. We found that severe trauma also caused cell swelling in cultured neurons, whereas no swelling was observed in microglia. While severe trauma caused cell swelling in both astrocytes and neurons, mild trauma to astrocytes, neurons, and microglia failed to cell swelling...
November 17, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/29150710/computed-tomography-perfusion-is-a%C3%A2-useful-adjunct-to-computed-tomography-angiography-in-the-diagnosis-of-brain-death
#7
M Sawicki, J Sołek-Pastuszka, K Chamier-Ciemińska, A Walecka, J Walecki, R Bohatyrewicz
BACKGROUND: In the diagnosis of brain death (BD), computed tomography angiography (CTA) results in some cases show intracranial filling, leading to diagnostic confusion. Because cerebral circulatory arrest commences at the capillary level, we hypothesized that computed tomography perfusion (CTP) would be a more sensitive approach than CTA; therefore, the aim of the study was to compare the sensitivities of CTP and CTA in the diagnosis of BD. MATERIAL AND METHODS: Whole brain CTP was performed in patients in the intensive care unit diagnosed with BD and CTA was derived from CTP datasets...
November 17, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29150431/the-e3-ubiquitin-ligase-apc-c-c-dh1-degrades-mcph1-after-mcph1-%C3%AE-trcp2-cdc25a-mediated-mitotic-entry-to-ensure-neurogenesis
#8
Xiaoqian Liu, Wen Zong, Tangliang Li, Yujun Wang, Xingzhi Xu, Zhong-Wei Zhou, Zhao-Qi Wang
Mutations of microcephalin (MCPH1) can cause the neurodevelopmental disorder primary microcephaly type 1. We previously showed that MCPH1 deletion in neural stem cells results in early mitotic entry that distracts cell division mode, leading to exhaustion of the progenitor pool. Here, we show that MCPH1 interacts with and promotes the E3 ligase βTrCP2 to degrade Cdc25A independent of DNA damage. Overexpression of βTrCP2 or the knockdown of Cdc25A remedies the high mitotic index and rescues the premature differentiation of Mcph1-deficient neuroprogenitors in vivo MCPH1 itself is degraded by APC/C(C)(dh1), but not APC/C(C)(dc20), in late mitosis and G1 phase...
November 17, 2017: EMBO Journal
https://www.readbyqxmd.com/read/29149948/knowledge-and-attitudes-toward-organ-donation-in-health-care-undergraduate-students-in-italy
#9
F Fontana, M Massari, L Giovannini, G Alfano, G Cappelli
INTRODUCTION: The number of organ donors in Italy is increasing, but with still disappointing living donation activity and relatively frequent objection by potential deceased donors' relatives to organ recovery. Few studies have assessed health care students' knowledge and attitude on donation. METHODS: We administered a questionnaire to medical (MS) and nursing students (NS) at University of Modena and Reggio Emilia, Italy, and 749 students (406 MS and 343 NS) completed the questionnaire...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149946/organ-donation-a-comparison-of-donating-and-nondonating-families-in-turkey
#10
F Can, S Hovardaoglu
Based on public opinion surveys, although 75% of people state that they would donate the organs of one of their relatives, in reality, the rate of the people who donate the organs of their relatives is 24%. To decrease the organ shortage, the key point is to understand the difference between intention and real behavior. For this reason, in this study, analyses of variables related to the potential organ donor families' decisions of approval or refusal for organ harvesting were analyzed. The interviews were conducted with 101 families who made a decision about organ donation between 2010 and 2014...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149760/patterns-of-relapse-in-poor-prognosis-germ-cell-tumours-in-the-getug-13-trial-implications-for-assessment-of-brain-metastases
#11
Y Loriot, L Pagliaro, A Fléchon, J Mardiak, L Geoffrois, P Kerbrat, C Chevreau, R Delva, F Rolland, C Theodore, G Roubaud, G Gravis, J C Eymard, J P Malhaire, C Linassier, M Habibian, A L Martin, F Journeau, M Reckova, C Logothetis, A Laplanche, G Le Teuff, S Culine, K Fizazi
BACKGROUND: The GETUG 13 phase III trial tested personalised chemotherapy based on tumour marker decline in patients with poor-prognosis germ-cell tumour (GCT) and demonstrated that a dose-dense regimen improves progression-free survival in patients with an unfavourable decline. We investigated the pattern of relapse for patients included in GETUG 13. METHODS: We conducted an analysis of relapse events in patients from GETUG 13. Baseline procedures before inclusion in the trial comprised a thoraco-abdomino-pelvic computed tomography scan and a magnetic resonance imaging of the brain...
November 14, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29149481/neuroprotective-effects-of-melatonin-on-amphetamine-induced-dopaminergic-fiber-degeneration-in-the-hippocampus-of-postnatal-rats
#12
Tanawan Leeboonngam, Ratchadaporn Pramong, Kwankanit Sae-Ung, Piyarat Govitrapong, Pansiri Phansuwan-Pujito
Chronic amphetamine (AMPH) abuse leads to damage of the hippocampus, the brain area associated with learning and memory process. Previous results have shown that AMPH-induced dopamine neurotransmitter release, reactive oxygen species formation and degenerative protein aggregation lead to neuronal death. Melatonin, a powerful antioxidant, plays a role as a neuroprotective agent. The objective of this study was to investigate whether the protective effect of melatonin on AMPH-induced hippocampal damage in the postnatal rat acts through the dopaminergic pathway...
November 17, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/29149396/a-survey-on-pediatric-brain-death-and-on-organ-transplantation-how-did-the-law-amendment-change-the-awareness-of-pediatric-healthcare-providers
#13
Takashi Araki, Hiroyuki Yokota, Koutaro Ichikawa
OBJECTIVES: In Japanese society taking a cautious attitude towards organ transplantation, we investigate how amendment of the Organ Transplant Law which legalized brain death (BD) determination criteria changed the awareness concerning BD and organ transplantation of pediatric healthcare providers. METHODS: The questionnaire survey adopted the bearer method and was sent to members of the Japanese Society of Emergency Pediatrics (JSEP). In both the surveys of 2008 and 2016, the same item "Questionnaire survey on BD and organ transplant" was disseminated...
October 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29149389/autoregulation-in-paediatric-tbi-current-evidence-and-implications-for-treatment
#14
REVIEW
Joseph E Donnelly, Adam M H Young, Ken Brady
BACKGROUND: Children who survive acute traumatic brain injury are at risk of death from subsequent brain swelling and secondary injury. Strict physiologic management in the ICU after traumatic brain injury is believed to be key to survival, and cerebral perfusion pressure is a prominent aspect of post brain injury care. However, optimal cerebral perfusion pressure targets for children are not known. Autoregulation monitoring has been used to delineate individualized optimal perfusion pressures for patients with traumatic brain injury...
October 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29149386/glucose-metabolism-in-pediatric-traumatic-brain-injury
#15
Mayumi L Prins
Traumatic brain injury is the number one cause of death and disability among the pediatric population in the USA. The heterogeneity of the pediatric population is reflected by both the normal cerebral maturation and the age differences in the causes of TBI, which generate unique age-related pathophysiology responses and recovery profiles. This review will address the normal changes in cerebral glucose metabolism throughout developmental phases and how TBI alters glucose metabolism. Evidence has shown that TBI disrupts the biochemical processing of glucose to energy...
October 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29148909/inhibition-of-gaba-transporters-fails-to-afford-significant-protection-following-focal-cerebral-ischemia
#16
Maria Ek Lie, Emma K Gowing, Rasmus P Clausen, Petrine Wellendorph, Andrew N Clarkson
Brain ischemia triggers excitotoxicity and cell death, yet no neuroprotective drugs have made it to the clinic. While enhancing GABAergic signaling to counterbalance excitotoxicity has shown promise in animal models, clinical studies have failed. Blockade of GABA transporters (GATs) offers an indirect approach to increase GABA inhibition to lower the excitation threshold of neurons. Among the GATs, GAT1 is known to promote neuroprotection, while the protective role of the extrasynaptic transporters GAT3 and BGT1 is elusive...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29148904/randomized-controlled-study-comparing-2-surgical-techniques-for-decompressive-craniectomy-with-watertight-duraplasty-and-without-watertight-duraplasty
#17
Eduardo Vieira, Thiago C Guimarães, Igor V Faquini, Jose L Silva, Tammy Saboia, Rodrigo V C L Andrade, Thaís L Gemir, Valesca C Neri, Nivaldo S Almeida, Hildo R C Azevedo-Filho
OBJECTIVE Decompressive craniectomy (DC) is a widely used procedure in neurosurgery; however, few studies focus on the best surgical technique for the procedure. The authors' objective was to conduct a prospective randomized controlled trial comparing 2 techniques for performing DC: with watertight duraplasty and without watertight duraplasty (rapid-closure DC). METHODS The study population comprised patients ranging in age from 18 to 60 years who were admitted to the Neurotrauma Service of the Hospital da Restauração with a clinical indication for unilateral decompressive craniectomy...
November 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29148640/short-term-outcome-of-operated-traumatic-brain-injury-patients-for-intracranial-hemorrhage-at-tikur-anbessa-specialized-teaching-hospital-tasth-addis-ababa-ethiopia
#18
Hagos Biluts, Azarias Kassahun, Mersha Abebe
Background: Traumatic brain injury is the leading cause of death and disability in people younger than 40 years of age worldwide. Objective: The study primarily aims at assessing the short-term outcome of patients operated for traumatic intracranial hemorrhage. Patients and Methods: This is a hospital based cross sectional study on patients with traumatic brain injury at Tikur Anbessa Specialized Teaching Hospital in Addis Ababa, Ethiopia, between February 2013 and February 2014...
January 2017: Ethiopian Medical Journal
https://www.readbyqxmd.com/read/29147905/transcriptional-regulation-of-dj-1
#19
Kazuko Takahashi-Niki, Takeshi Niki, Sanae M M Iguchi-Ariga, Hiroyoshi Ariga
DJ-1 is an oncogene and also a causative gene for familial Parkinson's disease. DJ-1 has various functions, and the oxidative status of a cysteine residue at position 106 (C106) is crucial for determination of the activation level of DJ-1.DJ-1 binds to many proteins, including various transcription factors, and acts as a coactivator or corepressor for regulating their target genes without direct binding to DNA, thereby affecting various cell functions. DJ-1-regulating transcription factors and their modified proteins are the androgen receptor and its regulatory proteins, p53; polypyrimidine tract-binding protein-associated splicing factor (PSF); Keap1, an inhibitor for nuclear factor erythroid2-related factor 2 (Nrf2); sterol regulatory element-binding protein (SREBP); Ras-responsive element-binding protein (RREB1); signal transducer and activator of transcription 1 (STAT1); and Nurr1...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29147859/initial-psycho-oncological-counselling-in-neuro-oncology-analysis-of-topics-and-needs-of-brain-tumour-patients
#20
Stephanie Schipmann, Eric Suero Molina, Anna Frasch, Walter Stummer, Dorothee Wiewrodt
Diagnosis of a brain tumour is associated with a tremendous disruption of emotional, physical and social well-being. Due to the complexity of the disease and the affection of the central organ, the brain, brain tumour patients differ from other cancer patients. The purpose of this study was to evaluate the concerns and burdens presented by brain tumour patients during their initial psycho-oncological consultation. We performed a retrospective analysis of 53 patients with the diagnosis of either benign or malignant brain tumour, seeking counsel by a neurosurgeon specialised in psycho-oncology...
November 17, 2017: Journal of Neuro-oncology
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