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https://www.readbyqxmd.com/read/29331073/cerebrospinal-fluid-macrophage-biomarkers-in-amyotrophic-lateral-sclerosis
#1
A G Thompson, E Gray, M-L Thézénas, P D Charles, S Evetts, M T Hu, K Talbot, R Fischer, B M Kessler, M R Turner
Objective The neurodegenerative disease amyotrophic lateral sclerosis (ALS) is a heterogeneous clinical syndrome involving multiple molecular pathways. The development of biomarkers for use in therapeutic trials is a priority. We sought to use a high-throughput proteomic method to identify novel biomarkers in individual cerebrospinal fluid samples. Methods Liquid chromatography-tandem mass spectrometry with label-free quantification was used to identify cerebrospinal fluid proteins using samples from a well-characterised longitudinal cohort comprising patients with ALS (n=43), the upper motor neuron variant primary lateral sclerosis (PLS, n=6), cross-sectional healthy (n=20) and disease controls (Parkinsons's n=20, ALS mimic disorders n=12)...
January 13, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29328927/alzheimer-s-disease-biomarker-guided-diagnostic-workflow-using-the-added-value-of-six-combined-cerebrospinal-fluid-candidates-a%C3%AE-1-42-total-tau-phosphorylated-tau-nfl-neurogranin-and-ykl-40
#2
Harald Hampel, Nicola Toschi, Filippo Baldacci, Henrik Zetterberg, Kaj Blennow, Ingo Kilimann, Stefan J Teipel, Enrica Cavedo, Antonio Melo Dos Santos, Stéphane Epelbaum, Foudil Lamari, Remy Genthon, Bruno Dubois, Roberto Floris, Francesco Garaci, Simone Lista
INTRODUCTION: The diagnostic and classificatory performances of all combinations of three core (amyloid β peptide [i.e., Aβ1-42], total tau [t-tau], and phosphorylated tau) and three novel (neurofilament light chain protein, neurogranin, and YKL-40) cerebrospinal fluid biomarkers of neurodegeneration were compared among individuals with mild cognitive impairment (n = 41), Alzheimer's disease dementia (ADD; n = 35), frontotemporal dementia (FTD; n = 9), and cognitively healthy controls (HC; n = 21), using 10-fold cross-validation...
January 9, 2018: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/29322259/csf-neurofilament-proteins-as-diagnostic-and-prognostic-biomarkers-for-amyotrophic-lateral-sclerosis
#3
Daniela Rossi, Paolo Volanti, Liliana Brambilla, Tiziana Colletti, Rossella Spataro, Vincenzo La Bella
Elevated cerebrospinal fluid (CSF), Neurofilament Light (NF-L) and phosphorylated Heavy (pNF-H) chain levels have been found in Amyotrophic Lateral Sclerosis (ALS), with studies reporting a correlation of both neurofilaments (NFs) with the disease progression. Here, we measured NF-L and pNF-H concentrations in the CSF of ALS patients from a single tertiary Center and investigated their relationship with disease-related variables. A total of 190 ALS patients (Bulbar, 29.9%; Spinal, 70.1%; M/F = 1.53) and 130 controls with mixed neurological diseases were recruited...
January 10, 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29321234/plasma-neurofilament-light-chain-concentration-in-the-inherited-peripheral-neuropathies
#4
Åsa Sandelius, Henrik Zetterberg, Kaj Blennow, Rocco Adiutori, Andrea Malaspina, Matilde Laura, Mary M Reilly, Alexander M Rossor
OBJECTIVE: To perform a cross-sectional study to determine whether plasma neurofilament light chain (NfL) concentration is elevated in patients with Charcot-Marie-Tooth disease (CMT) and if it correlates with disease severity. METHODS: Blood samples were collected from 75 patients with CMT and 67 age-matched healthy controls over a 1-year period. Disease severity was measured using the Rasch modified CMT Examination and neuropathy scores. Plasma NfL concentration was measured using an in-house-developed Simoa assay...
January 10, 2018: Neurology
https://www.readbyqxmd.com/read/29321227/neurofilament-light-biomarkers-and-charcot-marie-tooth-disease
#5
EDITORIAL
Davide Pareyson, Michael E Shy
No abstract text is available yet for this article.
January 10, 2018: Neurology
https://www.readbyqxmd.com/read/29314300/low-grade-fibromyxoid-sarcoma-arising-within-the-median-nerve
#6
Amy A Swanson, Caterina Giannini, Andrew L Folpe, Daniel L Van Dyke, Kimberly K Amrami, William A Michalak, Rachael A Vaubel
We report a case of low-grade fibromyxoid sarcoma arising within the median nerve. A 31-year-old woman presented with symptoms of carpal tunnel syndrome and an enlarging mass in her right palm over 1 year. MRI demonstrated a mass associated with the right median nerve with solid and cystic components. At surgery, the mass was located within the epineurium, could be bluntly dissected from the nerve fascicles, and was suspected to be a schwannoma. A 3.4 cm, tan-pink, glistening, smooth, homogenous mass was submitted to pathology...
January 3, 2018: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29291173/phosphorylated-neurofilament-heavy-a-potential-blood-biomarker-to-evaluate-the-severity-of-acute-spinal-cord-injuries-in-adults
#7
Ajai Singh, Vineet Kumar, Sabir Ali, Abbas Ali Mahdi, Rajeshwer Nath Srivastava
Aims: The aim of this study is to analyze the serial estimation of phosphorylated neurofilament heavy (pNF-H) in blood plasma that would act as a potential biomarker for early prediction of the neurological severity of acute spinal cord injuries (SCI) in adults. Settings and Design: Pilot study/observational study. Subjects and Methods: A total of 40 patients (28 cases and 12 controls) of spine injury were included in this study. In the enrolled cases, plasma level of pNF-H was evaluated in blood samples and neurological evaluation was performed by the American Spinal Injury Association Injury Scale at specified period...
October 2017: International Journal of Critical Illness and Injury Science
https://www.readbyqxmd.com/read/29288365/methylphenidate-disrupts-cytoskeletal-homeostasis-and-reduces-membrane-associated-lipid-content-in-juvenile-rat-hippocampus
#8
Felipe Schmitz, Paula Pierozan, Helena Biasibetti-Brendler, Fernanda Silva Ferreira, Fernanda Dos Santos Petry, Vera Maria Treis Trindade, Regina Pessoa-Pureur, Angela T S Wyse
Although methylphenidate (MPH) is ubiquitously prescribed to children and adolescents, the consequences of chronic utilization of this psychostimulant are poorly understood. In this study, we investigated the effects of MPH on cytoskeletal homeostasis and lipid content in rat hippocampus. Wistar rats received intraperitoneal injections of MPH (2.0 mg/kg) or saline solution (controls), once a day, from the 15th to the 44th day of age. Results showed that MPH provoked hypophosphorylation of glial fibrillary acidic protein (GFAP) and reduced its immunocontent...
December 29, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29287521/could-conservative-iron-chelation-lead-to-neuroprotection-in-amyotrophic-lateral-sclerosis
#9
Caroline Moreau, Véronique Danel, Jean Christophe Devedjian, Guillaume Grolez, Kelly Timmerman, Charlotte Laloux, Maud Petrault, Flore Gouel, Aurélie Jonneaux, Mary Dutheil, Cedrick Lachaud, Renaud Lopes, Gregory Kuchinski, Florent Auger, Maeva Kyheng, Alain Duhamel, Thierry Perez, Pierre-Francois Pradat, Helene Blasco, Charlotte Veyrat-Durebex, Philippe Corcia, Patrick Oeckl, Markus Otto, Luc Dupuis, Guillaume Garçon, Luc Defebvre, Ioav Zvi Cabantchik, James Duce, Régis Bordet, David Devos
Iron accumulation has been observed in mouse models and both sporadic and familial forms of Amyotrophic lateral sclerosis. Iron chelation could reduce iron accumulation and the related excess of oxidative stress in the motor pathways. However, classical iron chelation would induce systemic iron depletion. We assess the safety and efficacy of conservative iron chelation (i.e. chelation with low risk of iron depletion) in a murine preclinical model and pilot clinical trial. In Sod1G86R mice, deferiprone increased the mean life span as compared with placebo...
December 29, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29285976/partial-recovery-of-proprioception-in-rats-with-dorsal-root-injury-following-human-olfactory-bulb-cell-transplantation
#10
Andrew Collins, Daqing Li, Modinat Liadi, Pawel Tabakow, Wojciech Fortuna, Geoffrey Raisman, Ying Li
We transplanted human olfactory bulb OECs (hOECs) mixed with collagen into a unilateral transection of four dorsal roots (C6-T1) in a rat model. By mixing with collagen, we could maximise the limited numbers of hOEC from an olfactory bulb biopsy and optimise cavity-filling. Cyclosporine was administered daily to prevent immune rejection. Forelimb proprioception was assessed weekly in a vertical climb task. Half of the rats receiving hOEC transplants showed some functional improvement ('responders') over six weeks of the study whilst the other half did not ('non-responders') and performed similarly to 'injured only' rats...
December 29, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29282336/csf-neurofilament-light-chain-and-phosphorylated-tau-181-predict-disease-progression-in-psp
#11
Julio C Rojas, Jee Bang, Iryna V Lobach, Richard M Tsai, Gil D Rabinovici, Bruce L Miller, Adam L Boxer
OBJECTIVE: To determine the ability of CSF biomarkers to predict disease progression in progressive supranuclear palsy (PSP). METHODS: We compared the ability of baseline CSF β-amyloid1-42, tau, phosphorylated tau 181 (p-tau), and neurofilament light chain (NfL) concentrations, measured by INNO-BIA AlzBio3 or ELISA, to predict 52-week changes in clinical (PSP Rating Scale [PSPRS] and Schwab and England Activities of Daily Living [SEADL]), neuropsychological, and regional brain volumes on MRI using linear mixed effects models controlled for age, sex, and baseline disease severity, and Fisher F density curves to compare effect sizes in 50 patients with PSP...
December 27, 2017: Neurology
https://www.readbyqxmd.com/read/29282262/brain-health-and-healthy-ageing-in-retired-rugby-union-players-the-brain-study-study-protocol-for-an-observational-study-in-the-uk
#12
Valentina Gallo, Damien McElvenny, Catherine Hobbs, Donna Davoren, Huw Morris, Sebastian Crutch, Henrik Zetterberg, Nick C Fox, Simon Kemp, Matthew Cross, Nigel K Arden, Madeleine A M Davies, Andrea Malaspina, Neil Pearce
INTRODUCTION: Relatively little is known about the long-term health of former elite rugby players, or former sportspeople more generally. As well as the potential benefits of being former elite sportspersons, there may be potential health risks from exposures occurring during an individual's playing career, as well as following retirement. Each contact sport has vastly different playing dynamics, therefore exposing its players to different types of potential traumas. Current evidence suggests that these are not necessarily comparable in terms of pathophysiology, and their potential long-term adverse effects might also differ...
December 26, 2017: BMJ Open
https://www.readbyqxmd.com/read/29281157/serum-neurofilament-light-chain-in-patients-with-acute-cerebrovascular-events
#13
Gian Marco De Marchis, Mira Katan, Christian Barro, Joachim Fladt, Christopher Traenka, David J Seiffge, Lisa Hert, Henrik Gensicke, Giulio Disanto, Raoul Sutter, Nils Peters, Hakan Sarikaya, Barbara Goeggel-Simonetti, Marwan El-Koussy, Stephan Engelter, Philippe A Lyrer, Mirjam Christ-Crain, Marcel Arnold, Jens Kuhle, Leo H Bonati
BACKGROUND AND PURPOSE: Serum Neurofilaments are markers of axonal injury. We addressed their diagnostic and prognostic role in acute ischemic stroke (AIS) and TIA. METHODS: Nested within a prospective cohort study, we compared serum neurofilament light chain levels (sNfL) drawn within 24 hours from symptom onset in patients with AIS or TIA. Patients without MRI on admission were excluded. We assessed if sNfL are associated with: (i) clinical severity on admission, (ii) diagnosis of AIS vs TIA, (iii) infarct size on admission diffusion weighted imaging (MR-DWI), and (iv) functional outcome at 3 months...
December 27, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29278529/erythropoietin-does-not-alter-serum-profiles-of-neuronal-and-axonal-biomarkers-after-traumatic-brain-injury-findings-from-the-australian-epo-tbi-clinical-trial
#14
Sarah C Hellewell, Stefania Mondello, Alison Conquest, Gerry Shaw, Irina Madorsky, Jay V Deng, Lorraine Little, Firas Kobeissy, Nicole Bye, Rinaldo Bellomo, David J Cooper, Shirley Vallance, Jasmine Board, Maria C Morganti-Kossmann
OBJECTIVE: To determine profiles of serum ubiquitin carboxy-terminal hydrolase L1 and phosphorylated neurofilament heavy-chain, examine whether erythropoietin administration reduce their concentrations, and whether biomarkers discriminate between erythropoietin and placebo treatment groups. DESIGN: Single-center, prospective observational study. SETTING: A sub-study of the erythropoietin-traumatic brain injury clinical trial, conducted at the Alfred Hospital, Melbourne, Australia...
December 22, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29274843/oxaliplatin-induced-changes-in-expression-of-transient-receptor-potential-channels-in-the-dorsal-root-ganglion-as-a-neuropathic-mechanism-for-cold-hypersensitivity
#15
Akiko Chukyo, Terumasa Chiba, Toshie Kambe, Ken Yamamoto, Kazuyoshi Kawakami, Kyoji Taguchi, Kenji Abe
Transient receptor potential (TRP) receptors are involved in the development of chemotherapy-induced peripheral neuropathic pain, which is a common side effect of selected chemotherapeutic agents such as oxaliplatin. However, the precise contribution of TRPs to this condition remains unknown. Cold hypersensitivity is the hallmark of oxaliplatin-induced neuropathy, so we used a preclinical model of oxaliplatin-induced cold hypersensitivity in rats to determine the effects of oxaliplatin on TRP channels. To this end, immunohistochemistry was used to examine TRP vanilloid 1 (TRPV1), TRP ankyrin 1 (TRPA1), and TRP melastatin 8 (TRPM8) expression in the rat dorsal root ganglion (DRG) after 4days of oxaliplatin treatment...
December 15, 2017: Neuropeptides
https://www.readbyqxmd.com/read/29260495/caffeic-acid-phenethyl-ester-cape-protects-pc12-cells-from-cisplatin-induced-neurotoxicity-by-activating-the-ngf-signaling-pathway
#16
Rafaela Scalco Ferreira, Neife Aparecida Guinaim Dos Santos, Nádia Maria Martins, Laís Silva Fernandes, Antonio Cardozo Dos Santos
Cisplatin is a highly effective chemotherapeutic drug that is toxic to the peripheral nervous system. Findings suggest that axons are early targets of the neurotoxicity of cisplatin. Although many compounds have been reported as neuroprotective, there is no effective treatment against the neurotoxicity of cisplatin. Caffeic acid phenethyl ester (CAPE) is a propolis component with neuroprotective potential mainly attributed to antioxidant and anti-inflammatory mechanisms. We have recently demonstrated the neurotrophic potential of CAPE in a cellular model of neurotoxicity related to Parkinson's disease...
December 19, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/29246630/expression-of-rgmb-in-brain-tissue-of-mcao-rats-and-its-relationship-with-axonal-regeneration
#17
Xiao Wang, Jing-Liang Cheng, Yun-Cai Ran, Yong Zhang, Lu Yang, Ya-Nan Lin
OBJECTIVE: To investigate the changes in the expression of repulsive guidance molecule b (RGMb) in brain tissue of rats with ischemic cerebral infarction and determine its relationship with axonal regeneration, synapse remodeling and magnetic resonance imaging (MRI) parameters with magnetic resonance diffusion tensor imaging as the dynamic continuous monitoring method in vivo, so as to explore the pathophysiological mechanism of the occurrence, development and prognosis of cerebral infarction...
December 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29246377/dimethyloxalylglycine-embedded-poly-%C3%AE%C2%B5-caprolactone-fiber-meshes-promote-odontoblastic-differentiation-of-human-dental-pulp-derived-cells
#18
Yeon-Jee Yoo, Joung-Hwan Oh, Qiankun Zhang, WooCheol Lee, Kyung Mi Woo
INTRODUCTION: The in vivo effect of prolyl hydroxylase inhibitors on the regeneration of the pulp-dentin complex is unclear. The purpose of this study was to investigate the effect of dimethyloxalylglycine (DMOG)-embedded poly(ε-caprolactone) fiber (PCLF/DMOG) on odontoblastic differentiation of human dental pulp-derived cells (hDPCs) by transplantation of the dentin slice model. METHODS: The hDPCs were seeded onto electrospun PCLF and PCLF/DMOG in dentin slices and then transplanted into nude mice...
January 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29244790/lentivirus-mediated-silencing-of-the-ptc1-and-ptc2-genes-promotes-recovery-from-spinal-cord-injury-by-activating-the-hedgehog-signaling-pathway-in-a-rat-model
#19
Ya-Dong Zhang, Zhong-Sheng Zhu, Dong Zhang, Zhen Zhang, Bin Ma, Shi-Chang Zhao, Feng Xue
This study aimed to investigate the effect of Patched-1 (PTC1) and PTC2 silencing in a rat model, on Hedgehog (Hh) pathway-mediated recovery from spinal cord injury (SCI). An analytical emphasis on the relationship between the sonic hedgehog (Shh) pathway and nerve regeneration was explored. A total of 126 rats were divided into normal, sham, SCI, negative control (NC), PTC1-RNAi, PTC2-RNAi and PTC1/PTC2-RNAi groups. The Basso, Beattie and Bresnahan (BBB) scale was employed to assess hind limb motor function...
December 15, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29239337/globose-basal-cells-for-spinal-cord-regeneration
#20
Durai Murugan Muniswami, Indirani Kanakasabapathy, George Tharion
Spinal cord injury (SCI) is a devastating condition with loss of motor and sensory functions below the injury level. Cell based therapies are experimented in pre-clinical studies around the world. Neural stem cells are located intra-cranially in subventricular zone and hippocampus which are highly invasive sources. The olfactory epithelium is a neurogenic tissue where neurogenesis takes place throughout the adult life by a population of stem/progenitor cells. Easily accessible olfactory neuroepithelial stem/progenitor cells are an attractive cell source for transplantation in SCI...
November 2017: Neural Regeneration Research
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