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https://www.readbyqxmd.com/read/28088230/relationship-between-the-uptake-of-18-f-borono-l-phenylalanine-and-l-methyl-11-c-methionine-in-head-and-neck-tumors-and-normal-organs
#1
Yoshiaki Watanabe, Hiroaki Kurihara, Jun Itami, Ryohei Sasaki, Yasuaki Arai, Kazuro Sugimura
BACKGROUND AND PURPOSE: The purpose of this study was to determine the distribution of 4-borono-2-(18)F-fluoro-phenylalanine ((18)F-BPA) and L-[methyl-(11)C] methionine ((11)C-Met) in normal organs and tumors and to evaluate the usefulness of (11)C-Met/PET in screening potential candidates for boron neutron capture therapy (BNCT). MATERIAL METHODS: Seven patients who had at least one histologically confirmed head and neck tumor were included in this study. They underwent both whole-body (18)F-BPA-PET/CT and (11)C-Met-PET/CT within a span of 6 months...
January 14, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28081461/bdnf-gene-delivery-mediated-by-neuron-targeted-nanoparticles-is-neuroprotective-in-peripheral-nerve-injury
#2
Cátia D F Lopes, Nádia P Gonçalves, Carla P Gomes, Maria J Saraiva, Ana P Pêgo
Neuron-targeted gene delivery is a promising strategy to treat peripheral neuropathies. Here we propose the use of polymeric nanoparticles based on thiolated trimethyl chitosan (TMCSH) to mediate targeted gene delivery to peripheral neurons upon a peripheral and minimally invasive intramuscular administration. Nanoparticles were grafted with the non-toxic carboxylic fragment of the tetanus neurotoxin (HC) to allow neuron targeting and were explored to deliver a plasmid DNA encoding for the brain-derived neurotrophic factor (BDNF) in a peripheral nerve injury model...
December 24, 2016: Biomaterials
https://www.readbyqxmd.com/read/28079948/induction-of-antibodies-directed-against-branched-core-o-mannosyl-glycopeptides-selectivity-complimentary-to-the-cona-lectin
#3
Jin Yu, Oliver C Grant, Christian Pett, Sabine Strahl, Robert J Woods, Ulrika Westerlind
Mammalian protein O-mannosylation comprise a group of post-translational modifications (PTMs) involved in muscle and brain development. Despite the enormous progress made, to date the biological impact of the mammalian O-mannosyl glycoproteome remains largely unknown. Tools are still needed to investigate the structure, role and abundance of O-mannosyl glycans. While O-mannosyl branching has been shown to be of relevance in integrin-dependent cell-migration, and also plays a role in demyelinating diseases, a broader understanding of the biological roles of branched O-mannosyl glycans is lacking in part due to the paucity of detection tools...
January 12, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28077839/atypical-trigeminal-neuralgia-a-rare-neurological-manifestation-of-systemic-lupus-erythematosus
#4
Viki Kumar, Jaspinder Kaur, Pallavi Pothuri, Sahiba Bandagi
BACKGROUND Systemic lupus erythematosus (SLE) is a multisystem autoimmune disorder of unknown etiology which can present at any age with symptoms of mucocutaneous, musculoskeletal, renal, central nervous system, and nonspecific clinical pictures making the disease a "master of mimicry". CASE REPORT A 53-year-old female, who was recently diagnosed with SLE, presented with right-sided sharp and electric shock-like facial pain starting at the side of her right nostril and traveling down the naso-labial fold and then back to the angle of the jaw, mostly in the region of V2-V3 distribution with no radiation beyond trigeminal distribution...
January 12, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28073096/high-density-scalp-eeg-in-frontal-lobe-epilepsy
#5
Anteneh M Feyissa, Jeffrey W Britton, Jamie Van Gompel, Terrance L Lagerlund, Elson So, Lilly C Wong-Kisiel, Gregory C Cascino, Benjamin H Brinkman, Cindy L Nelson, Robert Watson, Gregory A Worrell
PURPOSE: Localization of seizures in frontal lobe epilepsy using the 10-20 system scalp EEG is often challenging because neocortical seizure can spread rapidly, significant muscle artifact, and the suboptimal spatial resolution for seizure generators involving mesial frontal lobe cortex. Our aim in this study was to determine the value of visual interpretation of 76 channel high density EEG (hdEEG) monitoring (10-10 system) in patients with suspected frontal lobe epilepsy, and to evaluate concordance with MRI, subtraction ictal SPECT co-registered to MRI (SISCOM), conventional EEG, and intracranial EEG (iEEG)...
January 2, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28072672/a-simplified-electroencephalogram-monitoring-system-in-the-emergency-room
#6
Masahiro Nozawa, Hiroshi Terashima, Satoshi Tsuji, Masaya Kubota
OBJECTIVES: The study aims to assess the clinical usefulness and related limitations of our simplified emergency electroencephalography (eEEG) as an assessment tool of lethal abnormal brain waves in the emergency room (ER). METHODS: Electrodes were placed on 4 places: bilateral frontal poles and parietal regions. The derivations to judge consisted of only 2 bipolar leads on the left and right. Abnormal wave was defined as either persistent rhythmic waves or persistent high-amplitude slow waves (<2 Hz)...
January 9, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28071526/methylmercury-in-fish-from-the-southern-baltic-sea-and-coastal-lagoons-as-a-function-of-species-size-and-region
#7
Lucyna Polak-Juszczak
BACKGROUND: Methylmercury (MeHg) is a highly toxic compound that traverses the blood-brain barrier with deleterious effects to the central nervous system. Exposure is generally through the ingestion of contaminated fish. Fish are a main source of MeHg. Goals and methods: The aim of this study was to determine the dependence of MeHg concentrations on fish species and age, the percentage of MeHg in total mercury (THg) and risk assessment depending on the size of fish. Assays of THg and MeHg were performed on the muscle tissues of 18 species of fish...
January 1, 2017: Toxicology and Industrial Health
https://www.readbyqxmd.com/read/28070911/effects-of-exercise-training-on-brain-derived-neurotrophic-factor-in-skeletal-muscle-and-heart-of-rats-post-myocardial-infarction
#8
Heow Won Lee, Monir Ahmad, Hong-Wei Wang, Frans H H Leenen
Exercise training post myocardial infarction (MI) attenuates progressive left ventricle (LV) remodeling and dysfunction, but the peripheral stimuli induced by exercise which trigger these beneficial effects are still unclear. We investigated as possible mediators fibronectin type III domain-containing protein 5 (FNDC5) and brain-derived neurotrophic factor (BDNF) in the skeletal muscle and heart. Male Wistar rats underwent either sham surgery or ligation of left descending coronary artery, and surviving MI rats were allocated to either sedentary (Sed-MI) or exercise group (ExT-MI)...
January 9, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28070746/boundary-cap-neural-crest-stem-cells-promote-survival-of-mutant-sod1-motor-neurons
#9
Tanya Aggarwal, Jan Hoeber, Patrik Ivert, Svitlana Vasylovska, Elena N Kozlova
ALS is a devastating disease resulting in degeneration of motor neurons (MNs) in the brain and spinal cord. The survival of MNs strongly depends on surrounding glial cells and neurotrophic support from muscles. We previously demonstrated that boundary cap neural crest stem cells (bNCSCs) can give rise to neurons and glial cells in vitro and in vivo and have multiple beneficial effects on co-cultured and co-implanted cells, including neural cells. In this paper, we investigate if bNCSCs may improve survival of MNs harboring a mutant form of human SOD1 (SOD1(G93A)) in vitro under normal conditions and oxidative stress and in vivo after implantation to the spinal cord...
January 9, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28070494/pure-myopathy-with-enlarged-mitochondria-associated-to-a-new-mutation-in-mtnd2-gene
#10
Alice Zanolini, Ana Potic, Franco Carrara, Eleonora Lamantea, Daria Diodato, Flavia Blasevich, Silvia Marchet, Marina Mora, Francesco Pallotti, Lucia Morandi, Massimo Zeviani, Costanza Lamperti
To date, only few mutations in the mitochondrial DNA (mtDNA)-encoded ND2 subunit of Complex I have been reported, usually presenting a severe phenotype characterized by early onset encephalomyopathy and early death. In this report, we describe a new mutation in the MTND2 gene in a 21-year-old man with a mild myopathic phenotype characterized by exercise intolerance and increased plasma lactate at rest. Electromyography and brain NMR were normal, and no cardiac involvement was present. Muscle biopsy showed a massive presence of ragged red - COX-positive fibres, with enlarged mitochondria containing osmiophilic inclusions...
March 2017: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/28069928/functional-organization-of-cutaneous-and-muscle-afferent-synapses-onto-immature-spinal-lamina-i-projection-neurons
#11
Jie Li, Mark L Baccei
: It is well-established that sensory afferents innervating muscle are more effective at inducing hyperexcitability within spinal cord circuits compared to skin afferents, which likely contributes to the higher prevalence of chronic musculoskeletal pain compared to pain of cutaneous origin. However, the mechanisms underlying these differences in central nociceptive signaling remain incompletely understood, as nothing is known about how superficial dorsal horn (SDH) neurons process sensory input from muscle vs...
January 9, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28069811/tgf-%C3%AE-1-smad3-pathway-targets-pp2a-ampk-foxo1-to-regulate-hepatic-gluconeogenesis
#12
Hariom Yadav, Samir Devalaraja, Stephanie Chung, Sushil G Rane
Maintenance of glucose homeostasis is essential for normal physiology. Deviation from normal glucose levels, in either direction, increases susceptibility to serious medical complications such as hypoglycemia or diabetes. Maintenance of glucose homeostasis is achieved via functional interactions amongst various organs, liver, skeletal muscle, adipose tissue, brain and the endocrine pancreas. The liver is the primary site for endogenous glucose production, especially during states of prolonged fasting. However, enhanced gluconeogenesis is also a signature feature of type 2 diabetes (T2D)...
January 9, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28068656/mechanisms-of-improved-exercise-performance-under-hyperoxia
#13
Silvia Ulrich, Elisabeth D Hasler, Séverine Müller-Mottet, Stephan Keusch, Michael Furian, Tsogyal D Latshang, Simon Schneider, Stéphanie Saxer, Konrad E Bloch
BACKGROUND: The impact of hyperoxia on exercise limitation is still incompletely understood. OBJECTIVES: We investigated to which extent breathing hyperoxia enhances the exercise performance of healthy subjects and which physiologic mechanisms are involved. METHODS: A total of 32 healthy volunteers (43 ± 15 years, 12 women) performed 4 bicycle exercise tests to exhaustion with ramp and constant-load protocols (at 75% of the maximal workload [Wmax] on FiO2 0...
January 10, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28068428/a-network-model-of-local-field-potential-activity-in-essential-tremor-and-the-impact-of-deep-brain-stimulation
#14
Nada Yousif, Michael Mace, Nicola Pavese, Roman Borisyuk, Dipankar Nandi, Peter Bain
Essential tremor (ET), a movement disorder characterised by an uncontrollable shaking of the affected body part, is often professed to be the most common movement disorder, affecting up to one percent of adults over 40 years of age. The precise cause of ET is unknown, however pathological oscillations of a network of a number of brain regions are implicated in leading to the disorder. Deep brain stimulation (DBS) is a clinical therapy used to alleviate the symptoms of a number of movement disorders. DBS involves the surgical implantation of electrodes into specific nuclei in the brain...
January 9, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28068295/support-vector-machines-to-detect-physiological-patterns-for-eeg-and-emg-based-human-computer-interaction-a-review
#15
L R Quitadamo, F Cavrini, L Sbernini, F Riillo, L Bianchi, S Seri, G Saggio
Support vector machines (SVMs) are widely used classifiers for detecting physiological patterns in human-computer interaction (HCI). Their success is due to their versatility, robustness and large availability of free dedicated toolboxes. Frequently in the literature, insufficient details about the SVM implementation and/or parameters selection are reported, making it impossible to reproduce study analysis and results. In order to perform an optimized classification and report a proper description of the results, it is necessary to have a comprehensive critical overview of the applications of SVM...
January 9, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28067393/longitudinal-assessment-of-metal-concentrations-and-copper-isotope-ratios-in-the-g93a-sod1-mouse-model-of-amyotrophic-lateral-sclerosis
#16
T Gabriel Enge, Heath Ecroyd, Dianne F Jolley, Justin J Yerbury, Anthony Dosseto
Amyotrophic lateral sclerosis (ALS) is a motor neuron disease, which involves progressive motor neuron degeneration in the central nervous system (CNS). The G93A SOD1 mouse model simulates one of the most common causes of familial ALS through the overexpression of a mutated form of the human gene encoding copper/zinc superoxide dismutase (SOD1). Transition metals, particularly Cu and Zn, have been shown to behave abnormally in the disease context and have been hypothesized to contribute to and potentially trigger the disease...
January 9, 2017: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/28067171/molecular-cloning-and-developmental-expression-patterns-of-the-striatin-gene-encoding-a-member-of-the-regulatory-subunits-for-the-protein-serine-threonine-phosphatase-2a-in-fish
#17
S-S Xie, Z-W Luo, F-Y Liu, L Liu, Z Chen, J-W Xiang, T-H Yang, R-L Qi, Y Yang, Q Nie, L Wang, Z Huang, X-H Hu, Y-F Liu, Q Sun, Y Xiao, W-J Qing, W-B Liu, Y-Z Liu, D-Y Zhang, D W-C Li
The protein phosphatase-2A (PP-2A) is one of the most important serine/threonine phosphatases in eukaryotes. The holoenzyme of PP-2A consists of three subunits: a scaffold A subunit, a catalytic C subunit and a regulatory B subunit. While both A and C subunits are coded by two different genes, the B subunits exist in 26 or more isoforms which are encoded by at least 15 different genes. Previous studies have shown that besides regulating specific PP-2A activity, the various B subunits may have other functions...
January 9, 2017: Current Molecular Medicine
https://www.readbyqxmd.com/read/28065791/the-neuroprotective-strategic-analysis-for-patients-with-acute-myocardial-infarction-combined-with-hypoxic-ischemic-encephalopathy-in-icu
#18
Yali Chao, Weiwei Hu, Xiaojuan Geng
BACKGROUND: We conducted this study to investigate the neuroprotective treatment strategies for patients with acute myocardial infarction (AMI) complicated with hypoxic ischemic encephalopathy (HIE) in the ICU. METHODS: A total of 83 cases that were diagnosed with secondary AMI for the first time were selected and divided into observation group (n=43) and the control group (n=40). All of patients underwent emergency or elective PCI. Patients in the control group were treated with mannitol to reduce intracranial pressure, cinepazide maleate to improve microcirculation in the brain and also given comprehensive treatments of oxygen inhalation, fluid infusion, acid-base imbalance correction, electrolyte disturbance, etc...
January 5, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28064346/effects-of-cerebellar-transcranial-alternating-current-stimulation-on-motor-cortex-excitability-and-motor-function
#19
Antonino Naro, Alessia Bramanti, Antonino Leo, Alfredo Manuli, Francesca Sciarrone, Margherita Russo, Placido Bramanti, Rocco Salvatore Calabrò
The cerebellum regulates several motor functions through two main mechanisms, the cerebellum-brain inhibition (CBI) and the motor surround inhibition (MSI). Although the exact cerebellar structures and functions involved in such processes are partially known, Purkinje cells (PC) and their surrounding interneuronal networks may play a pivotal role concerning CBI and MSI. Cerebellar transcranial alternating current stimulation (tACS) has been proven to shape specific cerebellar components in a feasible, safe, effective, and non-invasive manner...
January 7, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28063512/tackling-guanidinoacetic-acid-for-advanced-cellular-bioenergetics
#20
REVIEW
Sergej M Ostojic
Tissues with high-energy output, such as the brain and skeletal muscle, suffer the most from impaired or depleted energy levels, with innovative nutritional approaches needed to effectively tackle metabolic deficits in bioenergetics. Here, we highlight the role of guanidinoacetic acid in the control and provision of cellular energy by its interaction with cellular transporters for taurine (SLC6 A6) and γ-aminobutyric acid (SLC6 A13), previously dismissed as "untargetable" carriers by other bioenergetics therapeutics...
February 2017: Nutrition
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