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Multiple Sclerosis Brain injury

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https://www.readbyqxmd.com/read/27915116/7t-mr-of-intracranial-pathology-preliminary-observations-and-comparisons-to-3t-and-1-5t
#1
Emmanuel C Obusez, Mark Lowe, Se-Hong Oh, Irene Wang, M S Jennifer Bullen, Paul Ruggieri, Virginia Hill, Daniel Lockwood, Todd Emch, Doksu Moon, Gareth Loy, Jonathan Lee, Matthew Kiczek, D O Manoj Massand, Volodymyr Statsevych, Todd Stultz, Stephen E Jones
PURPOSE: There have been an increasing number of studies involving ultra-high-field 7T of intracranial pathology, however, comprehensive clinical studies of neuropathology at 7T still remain limited. 7T has the advantage of a higher signal-to-noise ratio and a higher contrast-to-noise ratio, compared to current low field clinical MR scanners. We hypothesized 7T applied clinically, may improve detection and characterization of intracranial pathology. MATERIALS AND METHODS: We performed an IRB-approved 7T prospective study of patients with neurological disease who previously had lower field 3T and 1...
November 30, 2016: NeuroImage
https://www.readbyqxmd.com/read/27911071/severe-brain-injury-in-massachusetts-assessing-the-continuum-of-care
#2
Laura Lorenz, Gabrielle Katz
Acquired brain injury (ABI) is a major public health problem in Massachusetts (Hackman et al, 2014) and includes traumatic brain injury (TBI), stroke, ABI-related infectious diseases, metabolic disorders affecting the central nervous system (brain and spinal cord), and brain tumor. Advances in emergency medical care and neurosurgery mean that more people are surviving severe traumatic brain injury (Trexler et al, 2014). Yet many patients with severe TBI in particular, are not receiving inpatient services after initial treatment (Hackman et al, 2014; CDC, 2014) or later that are known to be effective (Malec & Kean, 2015; Lewis & Horn, 2015; BI Commission, 2011; Kolakowsky-Hayner et al, 2000; Interviews)...
December 10, 2015: Issue Brief
https://www.readbyqxmd.com/read/27906525/the-clinical-utility-of-qsm-disease-diagnosis-medical-management-and-surgical-planning
#3
REVIEW
Sarah Eskreis-Winkler, Yan Zhang, Jingwei Zhang, Zhe Liu, Alexey Dimov, Ajay Gupta, Yi Wang
Quantitative susceptibility mapping (QSM) is an MR technique that depicts and quantifies magnetic susceptibility sources. Mapping iron, the dominant susceptibility source in the brain, has many important clinical applications. Herein, we review QSM applications in the diagnosis, medical management, and surgical treatment of disease. To assist in early disease diagnosis, QSM can identify elevated iron levels in the motor cortex of amyotrophic lateral sclerosis patients, in the substantia nigra of Parkinson's disease (PD) patients, in the globus pallidus, putamen, and caudate of Huntington's disease patients, and in the basal ganglia of Wilson's disease patients...
December 1, 2016: NMR in Biomedicine
https://www.readbyqxmd.com/read/27904430/natalizumab-related-progressive-multifocal-leukoencephalopathy-immune-reconstitution-inflammatory-syndrome-a-case-report-highlighting-clinical-and-mri-features
#4
Bela Purohit, Eranga Ganewatte, Spyros S Kollias
Multiple sclerosis (MS) patients treated with natalizumab often face the uncommon but severe complication of developing progressive multifocal leukoencephalopathy (PML). PML may be further complicated by immune reconstitution inflammatory syndrome (IRIS) after the removal of the drug. Since both PML and IRIS are associated with high morbidity and mortality rates, early clinical and radiological diagnosis of these complications is of paramount importance. Here, we report a case of an adult male patient who was diagnosed with PML after receiving natalizumab therapy for 6 years for the treatment of MS...
September 2016: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/27889994/pd-1-pd-ls-a-new-target-for-regulating-the-immunopathogenesis-in-central-nervous-system-disorders
#5
Jie Wu, Zhengquan Yu, Gang Chen
The central nervous system (CNS) was traditionally thought to tolerate inflammatory responses. However, CNS is not completely immune-privileged in recent researches. These responses including Microglia and macrophage activation and peripheral immune cells infiltration have been founded successively. Thus, the traditional view of the adult brain as an immune-privileged organ has been changed. Increasing evidence indicated that the PD-1(programmed cell death-1)/PD-Ls signal pathway plays an important role in regulating the immunopathogenesis of brain following injury...
November 23, 2016: Current Drug Delivery
https://www.readbyqxmd.com/read/27884460/endogenous-spinal-cord-stem-cells-in-multiple-sclerosis-and-its-animal-model
#6
Ruxandra Covacu, Lou Brundin
The adult mammalian spinal cord (SC) harbors neural stem cells (NSCs). The SC-NSCs are mostly quiescent during physiological conditions but are quickly activated in traumatic injury models. The SC-NSCs generate mostly glia, but are able to differentiate into neurons when affected by favourable conditions. An example is the inflammatory milieu in the SC of rat EAE, where the SC-NSCs migrate into demyelinated lesions and give rise to both glia and neurons. In MS, cells with progenitor phenotypes accumulate in inflammatory lesions both in brain and SC, but the extent to which these cells contribute to repair remains to be revealed...
November 15, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/27870453/do-microglia-play-a-role-in-sex-differences-in-tbi
#7
REVIEW
Henry W Caplan, Charles S Cox, Supinder S Bedi
Traumatic brain injury (TBI) is one of the leading causes of morbidity and mortality for both males and females and is, thus, a major focus of current study. Although the overall death rate of TBI for males is roughly three times higher than that for females, males have been disproportionately represented in clinical and preclinical studies. Gender differences are known to exist in many neurologic disorders, such as multiple sclerosis and stroke, and differences appear to exist in TBI. Furthermore, it is known that microglia have sexually dimorphic roles in CNS development and other neurologic conditions; however, most animal studies of microglia and TBI have focused on male subjects...
January 2, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/27865736/ips-derived-neural-progenitor-cells-from-ppms-patients-reveal-defect-in-myelin-injury-response
#8
Alexandra M Nicaise, Erin Banda, Rosa M Guzzo, Kristen Russomanno, Wanda Castro-Borrero, Cory M Willis, Kasey M Johnson, Albert C Lo, Stephen J Crocker
Primary progressive multiple sclerosis (PPMS) is a chronic demyelinating disease of the central nervous system (CNS) currently lacking any effective treatment. Promoting endogenous brain repair offers a potential strategy to halt and possibly restore neurologic function in PPMS. To understand how the microenvironment within white matter lesions plays a role in repair we have focused on neural progenitor cells (NPCs) since these are found in lesions in PPMS and have been found to influence oligodendrocyte progenitor cell maturation (OPCs)...
November 16, 2016: Experimental Neurology
https://www.readbyqxmd.com/read/27831974/outcomes-of-palatal-lift-prosthesis-on-dysarthric-speech
#9
Firas S D Alfwaress, Abdel Rahim Bibars, Abedelhadi Hamasha, Emad Al Maaitah
PURPOSE: This study was designed to investigate the effect of palatal lift prosthesis (PLP) on the speech of individuals with different types of dysarthria. PARTICIPANTS: Thirty (19 males and 11 females) native speakers of Jordanian Arabic with dysarthria participated in the study. The age of the participants ranged from 8 to 67 years with an average of 34.1 years. Traumatic brain injury was the most common etiology of dysarthria among 12 participants, stroke among 11, multiple sclerosis among 3, and pseudobulbar palsy among 2; 1 participant had Parkinson disease, and another participant had amyotrophic lateral sclerosis...
November 9, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27779426/wais-iv-gai-and-cpi-discrepancies-in-multiple-sclerosis-and-traumatic-brain-injury
#10
Joseph J Ryan, David S Kreiner, Laura Glass Umfleet, Samuel T Gontkovsky, Allison Myers-Fabian
We examined relationships between the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV) General Ability Index (GAI) and Cognitive Proficiency Index (CPI) in two clinical samples. The mean pattern produced by 42 individuals with multiple sclerosis (MS) and 47 with traumatic brain injury (TBI) was the same, GAI > CPI. This pattern occurred in 61.9% and 78.7% of the protocols of patients with MS or TBI, respectively. The MS sample earned a significantly larger CPI mean than did patients with TBI...
October 25, 2016: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/27778395/complement-c3-on-microglial-clusters-in-multiple-sclerosis-occur-in-chronic-but-not-acute-disease-implication-for-disease-pathogenesis
#11
Iliana Michailidou, Daphne M P Naessens, Simon Hametner, Willemijn Guldenaar, Evert-Jan Kooi, Jeroen J G Geurts, Frank Baas, Hans Lassmann, Valeria Ramaglia
Microglial clusters with C3d deposits are observed in the periplaque of multiple sclerosis (MS) brains and were proposed as early stage of lesion formation. As such they should appear in the brain of MS donors with acute disease but thus far this has not been shown. Using postmortem brain tissue from acute (n = 10) and chronic (n = 15) MS cases we investigated whether C3d+ microglial clusters are part of an acute attack against myelinated axons, which could have implications for disease pathogenesis...
October 25, 2016: Glia
https://www.readbyqxmd.com/read/27778158/neurorehabilitation-applied-neuroplasticity
#12
Fary Khan, Bhasker Amatya, Mary P Galea, Roman Gonzenbach, Jürg Kesselring
The prevalence of disability due to neurological conditions is escalating worldwide. Neurological disorders have significant disability-burden with long-term functional and psychosocial issues, requiring specialized rehabilitation services for comprehensive management, especially treatments tapping into brain recovery 'neuroplastic' processes. Neurorehabilitation is interdisciplinary and cross-sectorial, requiring coordinated effort of diverse sectors, professions, patients and community to manage complex condition-related disability...
October 24, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27720818/sct-spinal-cord-toolbox-an-open-source-software-for-processing-spinal-cord-mri-data
#13
Benjamin De Leener, Simon Lévy, Sara M Dupont, Vladimir S Fonov, Nikola Stikov, D Louis Collins, Virginie Callot, Julien Cohen-Adad
For the past 25 years, the field of neuroimaging has witnessed the development of several software packages for processing multi-parametric magnetic resonance imaging (mpMRI) to study the brain. These software packages are now routinely used by researchers and clinicians, and have contributed to important breakthroughs for the understanding of brain anatomy and function. However, no software package exists to process mpMRI data of the spinal cord. Despite the numerous clinical needs for such advanced mpMRI protocols (multiple sclerosis, spinal cord injury, cervical spondylotic myelopathy, etc...
October 5, 2016: NeuroImage
https://www.readbyqxmd.com/read/27685637/interleukin-13-immune-gene-therapy-prevents-cns-inflammation-and-demyelination-via-alternative-activation-of-microglia-and-macrophages
#14
Caroline Guglielmetti, Debbie Le Blon, Eva Santermans, Angelica Salas-Perdomo, Jasmijn Daans, Nathalie De Vocht, Disha Shah, Chloé Hoornaert, Jelle Praet, Jurgen Peerlings, Firat Kara, Christian Bigot, Zhenhua Mai, Herman Goossens, Niel Hens, Sven Hendrix, Marleen Verhoye, Anna M Planas, Zwi Berneman, Annemie van der Linden, Peter Ponsaerts
Detrimental inflammatory responses in the central nervous system are a hallmark of various brain injuries and diseases. With this study we provide evidence that lentiviral vector-mediated expression of the immune-modulating cytokine interleukin 13 (IL-13) induces an alternative activation program in both microglia and macrophages conferring protection against severe oligodendrocyte loss and demyelination in the cuprizone mouse model for multiple sclerosis (MS). First, IL-13 mediated modulation of cuprizone induced lesions was monitored using T2 -weighted magnetic resonance imaging and magnetization transfer imaging, and further correlated with quantitative histological analyses for inflammatory cell influx, oligodendrocyte death, and demyelination...
September 29, 2016: Glia
https://www.readbyqxmd.com/read/27685467/determining-immune-system-suppression-versus-cns-protection-for-pharmacological-interventions-in-autoimmune-demyelination
#15
Kirsten S Evonuk, Carson E Moseley, Ryan E Doyle, Casey T Weaver, Tara M DeSilva
A major hallmark of the autoimmune demyelinating disease multiple sclerosis (MS) is immune cell infiltration into the brain and spinal cord resulting in myelin destruction, which not only slows conduction of nerve impulses, but causes axonal injury resulting in motor and cognitive decline. Current treatments for MS focus on attenuating immune cell infiltration into the central nervous system (CNS). These treatments decrease the number of relapses, improving quality of life, but do not completely eliminate relapses so long-term disability is not improved...
September 12, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27683897/age-related-changes-in-axonal-and-mitochondrial-ultrastructure-and-function-in-white-matter
#16
Katharine E Stahon, Chinthasagar Bastian, Shelby Griffith, Grahame J Kidd, Sylvain Brunet, Selva Baltan
UNLABELLED: The impact of aging on CNS white matter (WM) is of general interest because the global effects of aging on myelinated nerve fibers are more complex and profound than those in cortical gray matter. It is important to distinguish between axonal changes created by normal aging and those caused by neurodegenerative diseases, including multiple sclerosis, stroke, glaucoma, Alzheimer's disease, and traumatic brain injury. Using three-dimensional electron microscopy, we show that in mouse optic nerve, which is a pure and fully myelinated WM tract, aging axons are larger, have thicker myelin, and are characterized by longer and thicker mitochondria, which are associated with altered levels of mitochondrial shaping proteins...
September 28, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27677851/parp-inhibition-in-leukocytes-diminishes-inflammation-via-effects-on-integrins-cytoskeleton-and-protects-the-blood-brain-barrier
#17
Slava Rom, Viviana Zuluaga-Ramirez, Nancy L Reichenbach, Holly Dykstra, Sachin Gajghate, Pal Pacher, Yuri Persidsky
BACKGROUND: Blood-brain barrier (BBB) dysfunction/disruption followed by leukocyte infiltration into the brain causes neuroinflammation and contributes to morbidity in multiple sclerosis, encephalitis, traumatic brain injury, and stroke. The identification of pathways that decreases the inflammatory potential of leukocytes would prevent such injury. Poly(ADP-ribose) polymerase 1 (PARP) controls various genes via its interaction with myriad transcription factors. Selective PARP inhibitors have appeared lately as potent anti-inflammatory tools...
September 27, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27676710/is-disability-measured-by-fim-a-predictor-for-successful-self-intermittent-catheterization-in-neurological-patients
#18
Rebecca Haddad, Alix Verrando, Claire Hentzen, Laura Weglinski, Frédérique Le Breton, Delphine Verollet, Gérard Amarenco
OBJECTIVE: Self-clean intermittent catheterization (CIC) is a part of the arsenal of treatment strategies of neurogenic bladder (1). The acquisition of this technique depends on environment and parameters related to the patients, that can be measured by the FIM score (Functional Independence Measure), validated in various neurological populations (2). The objective of this study is to determine whether disability, as measured by the FIM, is predictive of the acquisition and the retention of CIC...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27645554/qualitative-exploration-of-the-benefits-of-group-based-memory-rehabilitation-for-people-with-neurological-disabilities-implications-for-rehabilitation-delivery-and-evaluation
#19
Niki Chouliara, Nadina B Lincoln
OBJECTIVE: To identify patient-perceived benefits of memory rehabilitation and draw transferrable lessons for the delivery and evaluation of similar interventions for people with neurological disabilities. METHODS: A qualitative study was conducted as part of a pragmatic randomised controlled trial comparing 2 memory rehabilitation approaches with a self-help control group. Postintervention interviews were conducted with 20 participants with a diagnosis of traumatic brain injury, multiple sclerosis or stroke...
September 19, 2016: BMJ Open
https://www.readbyqxmd.com/read/27635608/-the-efficacy-of-botulinum-toxin-therapy-in-patients-with-upper-limb-spasticity-due-to-traumatic-brain-injury
#20
M A Akulov, S E Khat'kova, O A Mokienko, O R Orlova, D Yu Usachev, V O Zakharov, A S Orlova, A A Tomsky
Spasticity is a type of muscle hyperactivity that occurs in patients after focal lesions of the Central nervous system due to various diseases: stroke, traumatic brain injury or spinal cord injury, neurosurgical intervention, as well as multiple sclerosis and other diseases of the Central nervous system and is the most disability manifestation of the syndrome of upper motor neuron (UMNS). Focal spasticity of the upper limb requires a complex treatment. Botulinum toxin therapy is an effective treatment for focal/multifocal spasticity in reducing muscle tone and improving function with the highest level of evidence according to the latest American and European guidelines for treatment of spasticity...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
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