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https://www.readbyqxmd.com/read/29150799/a-hybrid-approach-based-on-logistic-classification-and-iterative-contrast-enhancement-algorithm-for-hyperintense-multiple-sclerosis-lesion-segmentation
#1
Antonio Carlos da Silva Senra Filho
Multiple sclerosis (MS) is a neurodegenerative disease with increasing importance in recent years, in which the T2 weighted with fluid attenuation inversion recovery (FLAIR) MRI imaging technique has been addressed for the hyperintense MS lesion assessment. Many automatic lesion segmentation approaches have been proposed in the literature in order to assist health professionals. In this study, a new hybrid lesion segmentation approach based on logistic classification (LC) and the iterative contrast enhancement (ICE) method is proposed (LC+ICE)...
November 18, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29143562/pathological-cut-offs-of-global-and-regional-brain-volume-loss-in-multiple-sclerosis
#2
Tomas Uher, Manuela Vaneckova, Jan Krasensky, Lukas Sobisek, Michaela Tyblova, Jana Volna, Zdenek Seidl, Niels Bergsland, Michael G Dwyer, Robert Zivadinov, Nicola De Stefano, Maria Pia Sormani, Eva Kubala Havrdova, Dana Horakova
BACKGROUND: Volumetric MRI surrogate markers of disease progression are lacking. OBJECTIVE: To establish cut-off values of brain volume loss able to discriminate between healthy controls and MS patients. METHODS: In total, 386 patients after first demyelinating event suggestive of MS (CIS), 964 relapsing-remitting MS (RRMS) patients, 63 secondary-progressive MS (SPMS) patients and 58 healthy controls were included in this longitudinal study...
November 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/29143287/lipoic-acid-stimulates-camp-production-in-healthy-control-and-secondary-progressive-ms-subjects
#3
Sarah E Fiedler, Vijayshree Yadav, Amelia R Kerns, Catherine Tsang, Sheila Markwardt, Edward Kim, Rebecca Spain, Dennis Bourdette, Sonemany Salinthone
Lipoic acid (LA) exhibits antioxidant and anti-inflammatory properties; supplementation reduces disease severity and T lymphocyte migration into the central nervous system in a murine model of multiple sclerosis (MS), and administration in secondary progressive MS (SPMS) subjects reduces brain atrophy compared to placebo. The mechanism of action (MOA) of LA's efficacy in suppression of MS pathology is incompletely understood. LA stimulates production of the immunomodulator cyclic AMP (cAMP) in vitro. To determine whether cAMP could be involved in the MOA of LA in vivo, we performed a clinical trial to examine whether LA stimulates cAMP production in healthy control and MS subjects, and whether there are differences in the bioavailability of LA between groups...
November 15, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/29141813/the-neutrophil-to-lymphocyte-ratio-as-disease-actvity-marker-in-multiple-sclerosis-and-optic-neuritis
#4
A K Bisgaard, G Pihl-Jensen, J L Frederiksen
BACKGROUND: Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS). The neutrophil-to-lymphocyte ratio (NLR) has been identified as a disease activity marker in several diseases. We aim to evaluate the significance of the NLR in the different subtypes of MS, optic neuritis (ON) and in relation to disease activity and Expanded Disability Status Scale (EDSS). METHODS: We included 378 patients and 813 healthy controls (HC) from The Nordic Reference Interval Project 2000 (NORIP)...
November 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29128442/urinary-excretion-of-aluminium-and-silicon-in-secondary-progressive-multiple-sclerosis
#5
Krista Jones, Caroline Linhart, Clive Hawkins, Christopher Exley
BACKGROUND: Progressive multiple sclerosis is a chronic autoimmune condition of unknown aetiology and few therapeutic options. Human exposure to aluminium has been linked with multiple sclerosis and affected individuals are known to excrete unusually high amounts of aluminium in their urine. Silicon-rich mineral waters facilitate the removal of aluminium from the body in urine and herein we have tested their efficacy in affecting urinary excretion of aluminium in individuals diagnosed with secondary progressive multiple sclerosis (SPMS)...
November 1, 2017: EBioMedicine
https://www.readbyqxmd.com/read/29126887/combined-administration-of-resolvin-e1-and-lipoxin-a4-resolves-inflammation-in-a-murine-model-of-alzheimer-s-disease
#6
Alpdogan Kantarci, Nurgul Aytan, Iro Palaska, Danielle Stephens, Leah Crabtree, Claudia Benincasa, Bruce G Jenkins, Isabel Carreras, Alpaslan Dedeoglu
Dysfunction in the resolution of inflammation may play a key role in Alzheimer's disease (AD). In this study, we found that the levels of specialized pro-resolving lipid mediators (SPMs) in the hippocampus of 5xFAD mice are significantly lower than in non-transgenic littermates. We, therefore, tested the hypothesis that treatment with resolvin E1 (RvE1) and lipoxin A4 (LXA4) alone or in combination will reverse the neuroinflammatory process and decrease Aβ pathology. 5xFAD mice were treated intraperitoneally starting at 1month of age with RvE1 or LXA4 alone or in combination at a dose of 1...
November 7, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/29121642/limbic-system-damage-in-ms-mri-assessment-and-correlations-with-clinical-testing
#7
Jie Wen, Dmitriy A Yablonskiy, Amber Salter, Anne H Cross
Volume loss in some limbic region structures has been observed in multiple sclerosis (MS) patients. However, in vivo evaluation of existing tissue cellular microstructure integrity has received less attention. The goal of studies reported here was to quantitatively assess loss of limbic system volumes and tissue integrity, and to evaluate associations of these measures with cognitive and physical dysfunction in MS patients. Thirty-one healthy controls (HC) and 80 MS patients, including 32 relapsing remitting (RRMS), 32 secondary progressive (SPMS) and 16 primary progressive (PPMS), participated in this study...
2017: PloS One
https://www.readbyqxmd.com/read/29111873/longitudinal-optical-coherence-tomography-study-of-optic-atrophy-in-secondary-progressive-multiple-sclerosis-results-from-a-clinical-trial-cohort
#8
Kimberly M Winges, Charles F Murchison, Dennis N Bourdette, Rebecca I Spain
BACKGROUND: Limited prospective information exists regarding spectral-domain optical coherence tomography (SD-OCT) in secondary progressive multiple sclerosis (SPMS). OBJECTIVE: Document cross-sectional and longitudinal retinal nerve fiber layer (RNFL) and macular ganglion cell plus inner plexiform layer (GCIPL) features of an SPMS clinical trial cohort. METHODS: Prospective, observational study using a 2-year randomized placebo-controlled SPMS trial cohort with yearly SD-OCT testing...
November 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/29107957/febuxostat-ameliorates-secondary-progressive-experimental-autoimmune-encephalomyelitis-by-restoring-mitochondrial-energy-production-in-a-got2-dependent-manner
#9
Josephe A Honorat, Yuji Nakatsuji, Mikito Shimizu, Makoto Kinoshita, Hisae Sumi-Akamaru, Tsutomu Sasaki, Kazushiro Takata, Toru Koda, Akiko Namba, Kazuya Yamashita, Eri Sanda, Manabu Sakaguchi, Atsushi Kumanogoh, Takashi Shirakura, Mizuho Tamura, Saburo Sakoda, Hideki Mochizuki, Tatsusada Okuno
Oxidative stress and mitochondrial dysfunction are important determinants of neurodegeneration in secondary progressive multiple sclerosis (SPMS). We previously showed that febuxostat, a xanthine oxidase inhibitor, ameliorated both relapsing-remitting and secondary progressive experimental autoimmune encephalomyelitis (EAE) by preventing neurodegeneration in mice. In this study, we investigated how febuxostat protects neuron in secondary progressive EAE. A DNA microarray analysis revealed that febuxostat treatment increased the CNS expression of several mitochondria-related genes in EAE mice, most notably including GOT2, which encodes glutamate oxaloacetate transaminase 2 (GOT2)...
2017: PloS One
https://www.readbyqxmd.com/read/29103035/immunotherapy-of-mild-cognitive-impairment-by-%C3%AF-3-supplementation-why-are-amyloid-%C3%AE-antibodies-and-%C3%AF-3-not-working-in-clinical-trials
#10
Milan Fiala, Lucas Restrepo, Matteo Pellegrini
This article reviews the basic tenets of a clinical approach to effective immunotherapy of Alzheimer's disease (AD) in patients with mild cognitive impairment (MCI). Although one randomized controlled study in early MCI patients by fish-derived omega-3 fatty acids (ω-3) showed slowing of disease progression, large clinical trials with different products have failed to show cognitive effects. Macrophages of healthy subjects phagocytize and degrade amyloid-β1 - 42 (Aβ) in the brain tissues, whereas macrophages of patients with AD and MCI are functionally defective...
October 30, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29097413/spatial-correlation-of-pathology-and-perfusion-changes-within-the-cortex-and-white-matter-in-multiple-sclerosis
#11
A D Mulholland, R Vitorino, S-P Hojjat, A Y Ma, L Zhang, L Lee, T J Carroll, C G Cantrell, C R Figley, R I Aviv
BACKGROUND AND PURPOSE: The spatial correlation between WM and cortical GM disease in multiple sclerosis is controversial and has not been previously assessed with perfusion MR imaging. We sought to determine the nature of association between lobar WM, cortical GM, volume and perfusion. MATERIALS AND METHODS: Nineteen individuals with secondary-progressive multiple sclerosis, 19 with relapsing-remitting multiple sclerosis, and 19 age-matched healthy controls were recruited...
November 2, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29097315/mapping-of-thalamic-magnetic-susceptibility-in-multiple-sclerosis-indicates-decreasing-iron-with-disease-duration-a-proposed-mechanistic-relationship-between-inflammation-and-oligodendrocyte-vitality
#12
Ferdinand Schweser, Ana Luiza Raffaini Duarte Martins, Jesper Hagemeier, Fuchun Lin, Jannis Hanspach, Bianca Weinstock-Guttman, Simon Hametner, Niels P Bergsland, Michael G Dwyer, Robert Zivadinov
Recent advances in susceptibility MRI have dramatically improved the visualization of deep gray matter brain regions and the quantification of their magnetic properties in vivo, providing a novel tool to study the poorly understood iron homeostasis in the human brain. In this study, we used an advanced combination of the recent quantitative susceptibility mapping technique with dedicated analysis methods to study intra-thalamic tissue alterations in patients with clinically isolated syndrome (CIS) and multiple sclerosis (MS)...
October 30, 2017: NeuroImage
https://www.readbyqxmd.com/read/29057703/the-risk-of-second-primary-malignancy-in-patients-with-stage-ia-non-small-cell-lung-cancer-a-u-s-population-based-study
#13
Amit Khanal, Bilal Haider Lashari, Sreechandralekha Kruthiventi, Lubina Arjyal, Amir Bista, Priya Rimal, Dipesh Uprety
BACKGROUND: Lung cancer is one of the most common cancers worldwide. Patients with early stage lung cancer have improved long-term survival. With the introduction of low-dose CT scan, more patients are going to be diagnosed at an early stage. However, there is limited data on the risk of second primary malignancies (SPMs) in these subsets of patients in the United States. METHODS: We utilized SEER-13 (Surveillance, Epidemiology and End Results) registry to obtain Multiple Primary- Standardized Incidence Ratio and an Absolute Excess Risk between January 2004 and December 2010 for patients with Stage Ia non-small cell lung cancer...
October 23, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/29055459/smoking-and-multiple-sclerosis-a-systematic-review-and-meta-analysis-using-the-bradford-hill-criteria-for-causation
#14
REVIEW
Michelle L Degelman, Katya M Herman
BACKGROUND: Despite being one of the most common neurological disorders globally, the cause(s) of multiple sclerosis (MS) remain unknown. Cigarette smoking has been studied with regards to both the development and progression of MS. The Bradford Hill criteria for causation can contribute to a more comprehensive evaluation of a potentially causal risk factor-disease outcome relationship. The objective of this systematic review and meta-analysis was to assess the relationship between smoking and both MS risk and MS progression, subsequently applying Hill's criteria to further evaluate the likelihood of causal associations...
October 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29055441/clinical-and-mri-outcomes-after-stopping-or-switching-disease-modifying-therapy-in-stable-ms-patients-a-case-series-report
#15
Regina Berkovich
OBJECTIVE: To evaluate clinical and MRI outcomes after stopping or switching disease-modifying therapy in patients with stable MS. METHODS: A retrospective chart review was conducted of stable MS patients who discontinued or switched their DMT from 2011 to 2015. Clinical and MRI outcomes were obtained at baseline and 1-year follow-up. RESULTS: For the DMT discontinuation group, 15 patients were included, with 67% female, 53% Caucasian, mean age of 45...
October 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29041866/-progressive-ms-macro-views-the-need-for-novel-clinical-trial-paradigms-to-enable-drug-development-for-progressive-ms
#16
P Zaratin, G Comi, D Leppert
This article outlines the principal challenges to establish a standard phase-2 approach for progressive multiple sclerosis (PMS) and presents referring strategies to accelerate the registration process via a guidance approved by regulatory agencies. Accordingly, the contribution of 'big datasets' for a better understanding of the natural history of primary-progressive multiple sclerosis (PPMS) and secondary-progressive multiple sclerosis (SPMS) and of their prognostic factors and the value of novel biomarkers are discussed...
October 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/29031390/effects-of-postnatal-omega-3-fatty-acid-supplementation-on-offspring-pro-resolving-mediators-of-inflammation-at-6-months-and-5-years-of-age-a-double-blind-randomized-controlled-clinical-trial
#17
V H L See, E Mas, S L Prescott, L J Beilin, S Burrows, A E Barden, R C Huang, T A Mori
BACKGROUND: Resolution of inflammation is an active process involving specialised pro-resolving mediators (SPMs) generated from the omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Omega-3 fatty acid supplementation during infancy may provide an intervention strategy to modify SPMs and reduce oxidative stress. This study evaluates the effect of omega-3 fatty acid supplementation in infancy on SPMs and F2-isoprostanes from 6 months to 5 years of age. METHODS: In a double-blind, placebo-controlled, parallel-group study design, 420 infants were randomized to a daily supplement of omega-3 fatty acids (280mg DHA and 110mg EPA) or olive oil (control), from birth to age 6 months...
November 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29031194/the-prevalence-and-characteristics-of-epilepsy-in-patients-with-multiple-sclerosis-in-nordland-county-norway
#18
Espen Benjaminsen, Kjell-Morten Myhr, Karl B Alstadhaug
PURPOSE: The prevalence of epilepsy among patients with multiple sclerosis (MS) has been found higher than in the general population. Although cortical pathology may be involved, the causal link between MS and epileptic seizures is still unclear. We aimed to identify and describe the patients with active epilepsy in a previously described population based MS-cohort. METHODS: Medical records of all patients with MS in Nordland County on January 1, 2010, were scrutinizing for evidence of comorbid seizures and epilepsy...
October 6, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29024167/imaging-spinal-cord-atrophy-in-progressive-myelopathies-htlv-i-associated-neurological-disease-ham-tsp-and-multiple-sclerosis-ms
#19
Shila Azodi, Govind Nair, Yoshimi Enose-Akahata, Emily Charlip, Ashley Vellucci, Irene Cortese, Jenifer Dwyer, B Jeanne Billioux, Chevaz Thomas, Joan Ohayon, Daniel S Reich, Steven Jacobson
OBJECTIVE: Previous work measures spinal cord thinning in chronic progressive myelopathies, including human T-lymphotropic virus 1 (HTLV-1)-associated myelopathy/tropical spastic paraparesis (HAM/TSP) and multiple sclerosis (MS). Quantitative measurements of spinal cord atrophy are important in fully characterizing these and other spinal cord diseases. We aimed to investigate patterns of spinal cord atrophy and correlations with clinical markers. METHODS: Spinal cord cross-sectional area was measured in individuals (24 healthy controls [HCs], 17 asymptomatic carriers of HTLV-1 (AC), 47 HAM/TSP, 74 relapsing-remitting MS [RRMS], 17 secondary progressive MS [SPMS], and 40 primary progressive MS [PPMS]) from C1 to T10...
October 10, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28986469/staging-of-cortical-and-deep-grey-matter-functional-connectivity-changes-in-multiple-sclerosis
#20
Kim A Meijer, Anand J C Eijlers, Jeroen J G Geurts, Menno M Schoonheim
OBJECTIVE: Functional connectivity is known to increase as well as decrease throughout the brain in multiple sclerosis (MS), which could represent different stages of the disease. In addition, functional connectivity changes could follow the atrophy pattern observed with disease progression, that is, moving from the deep grey matter towards the cortex. This study investigated when and where connectivity changes develop and explored their clinical and cognitive relevance across different MS stages...
October 6, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
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