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https://www.readbyqxmd.com/read/28918129/where-do-substrates-of-diacylglycerol-kinases-come-from-diacylglycerol-kinases-utilize-diacylglycerol-species-supplied-from-phosphatidylinositol-turnover-independent-pathways
#1
REVIEW
Fumio Sakane, Satoru Mizuno, Daisuke Takahashi, Hiromichi Sakai
Diacylglycerol kinase (DGK) phosphorylates diacylglycerol (DG) to produce phosphatidic acid (PA). Mammalian DGK comprises ten isozymes (α-κ) and regulates a wide variety of physiological and pathological events, such as cancer, type II diabetes, neuronal disorders and immune responses. DG and PA consist of various molecular species that have different acyl chains at the sn-1 and sn-2 positions, and consequently, mammalian cells contain at least 50 structurally distinct DG/PA species. Because DGK is one of the components of phosphatidylinositol (PI) turnover, the generally accepted dogma is that all DGK isozymes utilize 18:0/20:4-DG derived from PI turnover...
September 9, 2017: Advances in Biological Regulation
https://www.readbyqxmd.com/read/28917281/magnetic-resonance-thermometry-and-laser-interstitial-thermal-therapy-for-brain-tumors
#2
REVIEW
Danilo Silva, Mayur Sharma, Rupa Juthani, Antonio Meola, Gene H Barnett
Recent technological advancements in intraoperative imaging are shaping the way for a new era in brain tumor surgery. Magnetic resonance thermometry has provided intraoperative real-time imaging feedback for safe and effective application of laser interstitial thermal therapy (LITT) in neuro-oncology. Thermal ablation has also established itself as a surgical option in epilepsy surgery and is currently used in spine oncology with promising results. This article reviews the principles and rationale as well as the clinical application of LITT for brain tumors...
October 2017: Neurosurgery Clinics of North America
https://www.readbyqxmd.com/read/28912153/comprehensive-genomic-profiling-of-282-pediatric-low-and-high-grade-gliomas-reveals-genomic-drivers-tumor-mutational-burden-and-hypermutation-signatures
#3
Adrienne Johnson, Eric Severson, Laurie Gay, Jo-Anne Vergilio, Julia Elvin, James Suh, Sugganth Daniel, Mandy Covert, Garrett M Frampton, Sigmund Hsu, Glenn J Lesser, Kimberly Stogner-Underwood, Ryan T Mott, Sarah Z Rush, Jennifer J Stanke, Sonika Dahiya, James Sun, Prasanth Reddy, Zachary R Chalmers, Rachel Erlich, Yakov Chudnovsky, David Fabrizio, Alexa B Schrock, Siraj Ali, Vincent Miller, Philip J Stephens, Jeffrey Ross, John R Crawford, Shakti H Ramkissoon
BACKGROUND: Pediatric brain tumors are the leading cause of death for children with cancer in the U.S. Incorporating next-generation sequencing data for both pediatric low-grade (pLGGs) and high-grade gliomas (pHGGs) can inform diagnostic, prognostic, and therapeutic decision-making. MATERIALS AND METHODS: We performed comprehensive genomic profiling on 282 pediatric gliomas (157 pHGGs, 125 pLGGs), sequencing 315 cancer-related genes and calculating the tumor mutational burden (TMB; mutations per megabase [Mb])...
September 14, 2017: Oncologist
https://www.readbyqxmd.com/read/28906341/the-neurophysiology-of-paediatric-movement-disorders
#4
Verity M McClelland
PURPOSE OF REVIEW: To demonstrate how neurophysiological tools have advanced our understanding of the pathophysiology of paediatric movement disorders, and of neuroplasticity in the developing brain. RECENT FINDINGS: Delineation of corticospinal tract connectivity using transcranial magnetic stimulation (TMS) is being investigated as a potential biomarker for response to therapy. TMS measures of cortical excitability and neuroplasticity are also being used to investigate the effects of therapy, demonstrating neuroplastic changes that relate to functional improvements...
September 12, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28905640/neurobiological-mechanisms-of-exercise-and-psychotherapy-in-depression-the-speed-study-rationale-design-and-methodological-issues
#5
Stephan Heinzel, Michael A Rapp, Thomas Fydrich, Andreas Ströhle, Christina Terán, Gunnar Kallies, Melanie Schwefel, Andreas Heissel
BACKGROUND/AIMS: Even though cognitive behavioral therapy has become a relatively effective treatment for major depressive disorder and cognitive behavioral therapy-related changes of dysfunctional neural activations were shown in recent studies, remission rates still remain at an insufficient level. Therefore, the implementation of effective augmentation strategies is needed. In recent meta-analyses, exercise therapy (especially endurance exercise) was reported to be an effective intervention in major depressive disorder...
September 1, 2017: Clinical Trials: Journal of the Society for Clinical Trials
https://www.readbyqxmd.com/read/28903026/differential-expression-of-genes-in-fetal-brain-as-a-consequence-of-maternal-protein-deficiency-and-nematode-infection
#6
Manjurul Haque, Lisa M Starr, Kristine G Koski, Marilyn E Scott
Maternal dietary protein deficiency and gastrointestinal (GI) nematode infection during early pregnancy have negative impacts on both maternal placental gene expression and fetal growth in the mouse. Here we used next-generation RNA sequencing (RNA-Seq) to test our hypothesis that maternal protein deficiency and/or nematode infection also alter the expression of genes in the developing fetal brain. Outbred pregnant CD1 mice were used in a 2x2 design with two levels of dietary protein (24% versus 6%) and two levels of infection (repeated sham versus Heligmosomoides bakeri beginning at gestation day 5)...
September 10, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28901661/-d40-knl1-casc5-and-autosomal-recessive-primary-microcephaly
#7
REVIEW
Masato Takimoto
Autosomal recessive primary microcephaly (MCPH) is a very rare neuro-developmental disease with brain size reduction. More than a dozen loci encoding proteins of diverse function have been shown to be responsible for MCPH1-13. Mutations in the D40/KNL1/CASC5 gene, which was initially characterized as a gene involved in chromosomal translocation in leukemia and as a member of the cancer/testis gene family, was later found to encode a kinetochore protein essential for mitotic cell division and to cause MCPH4...
September 13, 2017: Congenital Anomalies
https://www.readbyqxmd.com/read/28895591/development-of-drug-loaded-polymer-microcapsules-for-treatment-of-epilepsy
#8
Yu Chen, Qi Gu, Zhilian Yue, Jeremy M Crook, Simon E Moulton, Mark J Cook, Gordon G Wallace
Despite significant progress in developing new drugs for seizure control, epilepsy still affects 1% of the global population and is drug-resistant in more than 30% of cases. To improve the therapeutic efficacy of epilepsy medication, a promising approach is to deliver anti-epilepsy drugs directly to affected brain areas using local drug delivery systems. The drug delivery systems must meet a number of criteria, including high drug loading efficiency, biodegradability, neuro-cytocompatibility and predictable drug release profiles...
September 12, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28894384/technology-that-achieves-the-triple-aim-an-economic-analysis-of-the-brainpath%C3%A2-approach-in-neurosurgery
#9
Sidney P Norton, Evan M Dickerson, Charles G Kulwin, Mitesh V Shah
BACKGROUND: The Triple Aim is defined as: improving the patient experience of care, improving the health of populations, and reducing the per capita cost of health care. The purpose of this analysis was to evaluate the economic value of a new neurosurgical technique, the BrainPath™ approach, for use in patients with subcortical tumors and intracerebral hemorrhage (ICH). METHODS: Inpatient length of stay (LOS) data were collected for ICH and brain tumor surgical patient cases between August 2013 and November 2015...
2017: ClinicoEconomics and Outcomes Research: CEOR
https://www.readbyqxmd.com/read/28894299/dhea-inhibits-acute-microglia-mediated-inflammation-through-activation-of-the-trka-akt1-2-creb-jmjd3-pathway
#10
V I Alexaki, G Fodelianaki, A Neuwirth, C Mund, A Kourgiantaki, E Ieronimaki, K Lyroni, M Troullinaki, C Fujii, W Kanczkowski, A Ziogas, M Peitzsch, S Grossklaus, B Sönnichsen, A Gravanis, S R Bornstein, I Charalampopoulos, C Tsatsanis, T Chavakis
Dehydroepiandrosterone (DHEA) is the most abundant circulating steroid hormone in humans, produced by the adrenals, the gonads and the brain. DHEA was previously shown to bind to the nerve growth factor receptor, tropomyosin-related kinase A (TrkA), and to thereby exert neuroprotective effects. Here we show that DHEA reduces microglia-mediated inflammation in an acute lipopolysaccharide-induced neuro-inflammation model in mice and in cultured microglia in vitro. DHEA regulates microglial inflammatory responses through phosphorylation of TrkA and subsequent activation of a pathway involving Akt1/Akt2 and cAMP response element-binding protein...
September 12, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28890737/from-hard-neuro-tools-to-soft-neuro-toys-refocussing-the-neuro-enhancement-debate
#11
Jonna Brenninkmeijer, Hub Zwart
Since the 1990's, the debate concerning the ethical, legal and societal aspects of 'neuro-enhancement' has evolved into a massive discourse, both in the public realm and in the academic arena. This ethical debate, however, tends to repeat the same sets of arguments over and over again. Normative disagreements between transhumanists and bioconservatives on invasive or radical brain stimulators, and uncertainties regarding the use and effectivity of nootropic pharmaceuticals dominate the field. Building on the results of an extensive European project on responsible research and innovation in neuro-enhancement (NERRI), we observe and encourage that the debate is now entering a new and, as we will argue, more realistic and societally relevant stage...
2017: Neuroethics
https://www.readbyqxmd.com/read/28890692/white-matter-injury-after-intracerebral-hemorrhage-pathophysiology-and-therapeutic-strategies
#12
REVIEW
Chuanyuan Tao, Xin Hu, Hao Li, Chao You
Intracerebral hemorrhage (ICH) accounts for 10%-30% of all types of stroke. Bleeding within the brain parenchyma causes gray matter (GM) destruction as well as proximal or distal white matter (WM) injury (WMI) due to complex pathophysiological mechanisms. Because WM has a distinct cellular architecture, blood supply pattern and corresponding function, and its response to stroke may vary from that of GM, a better understanding of the characteristics of WMI following ICH is essential and may shed new light on treatment options...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28888668/effects-of-obesity-on-depression-a-role-for-inflammation-and-the-gut-microbiota
#13
REVIEW
Julieta Schachter, Jan Martel, Chuan-Sheng Lin, Chih-Jung Chang, Tsung-Ru Wu, Chia-Chen Lu, Yun-Fei Ko, Hsin-Chih Lai, David M Ojcius, John D Young
Depression is a mental disorder associated with environmental, genetic and psychological factors. Recent studies indicate that chronic neuro-inflammation may affect brain physiology and alter mood and behavior. Consumption of a high-fat diet leads to obesity and chronic systemic inflammation. The gut microbiota mediates many effects of a high-fat diet on human physiology and may also influence the mood and behavior of the host. We review here recent studies suggesting the existence of a link between obesity, the gut microbiota and depression, focusing on the mechanisms underlying the effects of a high-fat diet on chronic inflammation and brain physiology...
September 6, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28887978/neuro-differentiated-ntera2-cancer-stem-cells-encapsulated-in-alginate-beads-first-evidence-of-biological-functionality
#14
Ilaria Cacciotti, Claudia Ceci, Alessandra Bianco, Giuseppa Pistritto
The present communication investigates an application of alginate encapsulation technology to the differentiation of the embryonic cancer stem NTera2 cells (NT2) into dopamine-producing cells. The encapsulation of cells in polymeric beads allows their immune isolation and makes them eligible for transplantation, thus representing a promising biotech tool for the delivery of biologically active compounds to the brain. The polysaccharide alginate is one of the most commonly used material for this procedure since it is well tolerated by various tissues, including the brain...
December 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28876566/a-survey-of-selected-key-areas-of-management-of-south-african-neurosurgical-patients
#15
C H Daniel, M D du Trevou
BACKGROUND: Previous surveys of neurosurgical patient management, including a South African (SA) survey conducted in 2001, confirmed the existence of significant dissimilarities in management on national and international levels. This survey aimed to determine current SA neurosurgical patient management and to compare this with international trends. METHOD: Questionnaires in multiple choice question (MCQ) and free text entry format covering key areas of neurosurgical practice were emailed to SA neurosurgeons following ethics approval...
September 2017: South African Journal of Surgery. Suid-Afrikaanse Tydskrif Vir Chirurgie
https://www.readbyqxmd.com/read/28875947/improved-prediction-of-bimanual-movements-by-a-two-staged-effector-then-trajectory-decoder-with-epidural-ecog-in-nonhuman-primates
#16
Hoseok Choi, Jeyeon Lee, Jinsick Park, Seho Lee, Kyoung-Ha Ahn, In Young Kim, Kyoung-Min Lee, Dong Pyo Jang
OBJECTIVE: In arm movement BCIs (brain-computer interfaces), unimanual research has been much more extensively studied than its bimanual counterpart. However, it is well known that the bimanual brain state is different from the unimanual one. Conventional methodology used in unimanual studies does not take the brain stage into consideration, and therefore appears to be insufficient for decoding bimanual movements. In this paper, we propose the use of a two-staged (effector-then-trajectory) decoder, which combines the classification of movement conditions and uses a hand trajectory predicting algorithm for unimanual and bimanual movements, for application to in real-world BCIs...
September 6, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28875850/pharmacological-aspects-of-neuro-immune-interactions
#17
Vadim V Tarasov, Nikita V Kudryashov, Vladimir N Chubarev, Tatiana S Kalinina, George E Barreto, Ghulam Md Ashraf, Gjumrakch Aliev
The use of systematic approach for the analysis of mechanism of action of drugs at different levels of biological organization of organism is an important task in experimental and clinical pharmacology for drug designing and increasing the efficacy and safety of drugs. The analysis of published data on pharmacological effects of psychotropic drugs possessing immunomodulatory and/or antiviral properties have shown a correlation between central effects of examined drugs associated with the impact on the processes of neurogenesis of mature brain and survival of neurons, and their ability to alter levels of key proinflammatory cytokines...
August 29, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28875373/differentiating-brain-radionecrosis-from-tumour-recurrence-a-role-for-contrast-enhanced-ultrasound
#18
Luca Mattei, Francesco Prada, Marcello Marchetti, Paola Gaviani, Francesco DiMeco
Differentiating radionecrosis from tumour recurrence is a major issue in neuro-oncology. Conventional imaging is far from being validated as an alternative to histological assessment. We report the case of a patient operated on for suspected recurrence of brain metastasis 9 months after cyberknife radiosurgery. While magnetic resonance imaging showed strong enhancement of the lesion, intraoperative contrast-enhanced ultrasonography (CEUS) surprisingly did not-different from what is expected for brain metastases...
September 5, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28874832/antibiotic-induced-perturbations-in-microbial-diversity-during-post-natal-development-alters-amyloid-pathology-in-an-aged-appswe-ps1%C3%AE-e9-murine-model-of-alzheimer-s-disease
#19
Myles R Minter, Reinhard Hinterleitner, Marlies Meisel, Can Zhang, Vanessa Leone, Xiaoqiong Zhang, Paul Oyler-Castrillo, Xulun Zhang, Mark W Musch, Xunuo Shen, Bana Jabri, Eugene B Chang, Rudolph E Tanzi, Sangram S Sisodia
Recent evidence suggests the commensal microbiome regulates host immunity and influences brain function; findings that have ramifications for neurodegenerative diseases. In the context of Alzheimer's disease (AD), we previously reported that perturbations in microbial diversity induced by life-long combinatorial antibiotic (ABX) selection pressure in the APPSWE/PS1ΔE9 mouse model of amyloidosis is commensurate with reductions in amyloid-β (Aβ) plaque pathology and plaque-localised gliosis. Considering microbiota-host interactions, specifically during early post-natal development, are critical for immune- and neuro-development we now examine the impact of microbial community perturbations induced by acute ABX exposure exclusively during this period in APPSWE/PS1ΔE9 mice...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28867383/protective-effects-of-kinetin-against-aluminum-chloride-and-d-galactose-induced-cognitive-impairment-and-oxidative-damage-in-mouse
#20
Yunpeng Wei, Dan Liu, Yin Zheng, Honglian Li, Chaoshuang Hao, Wuqing Ouyang
Increasing evidence indicates that aluminum exposure and oxidative stress play crucial roles in the initiation and development of Alzheimer's disease (AD). Aluminum chloride (AlCl3) and d-galactose (d-gal) combined treatment of mice is considered as an easy and cheap way to obtain an animal model of AD. Kinetin is a plant cytokinin, which is also reported to exert neuro-protective effects in vivo and in vitro. Thus, in this study, neuro-protective effects of kinetin were investigated in an AD model of mice induced by AlCl3 and d-gal...
September 1, 2017: Brain Research Bulletin
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