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https://www.readbyqxmd.com/read/29346446/osteopontin-opn-as-a-csf-and-blood-biomarker-for-multiple-sclerosis-a-systematic-review-and-meta-analysis
#1
Elmira Agah, Arshia Zardoui, Amene Saghazadeh, Mona Ahmadi, Abbas Tafakhori, Nima Rezaei
Identifying a reliable biomarker may accelerate diagnosis of multiple sclerosis (MS) and lead to early management of the disease. Accumulating evidence suggest that cerebrospinal fluid (CSF) and peripheral blood concentration of osteopontin (OPN) may have diagnostic and prognostic value in MS. We conducted a systematic review and meta-analysis of studies that measured peripheral blood and CSF levels of OPN in MS patients and controls to evaluate the diagnostic potential of this biomarker better. We searched PubMed, Web of Science and Scopus databases to find articles that measured OPN concentration in peripheral blood and CSF samples from MS patients up to October 19, 2016...
2018: PloS One
https://www.readbyqxmd.com/read/29336947/characterization-of-goose-spms-molecular-characterization-and-expression-profiling-of-spms-in-the-goose-ovary
#2
Bo Kang, Qilin Xu, Ziyu Chen, Yongsheng Wu, Su Yang, Xicheng Yang, Zhao Zhang, Dongmei Jiang
Spermine synthase (SPMS), which converts spermidine into spermine, is essential for normal cell growth and development processes in humans and other mammals, but the molecular characterization and expression profiling of the SPMS gene remain undetermined in goose tissues and ovarian follicles. In this study, the SPMS cDNA sequence of the Sichuan white goose was cloned and analysed, and SPMS mRNA expression was profiled in various tissues and ovarian follicles. The results showed that the open reading frame of the SPMS cDNA sequence was 1092 bp in length, encoding 363 amino acids with a molecular weight of 41 kDa...
January 11, 2018: Reproductive Biology
https://www.readbyqxmd.com/read/29331092/deep-grey-matter-volume-loss-drives-disability-worsening-in-multiple-sclerosis
#3
Arman Eshaghi, Ferran Prados, Wallace Brownlee, Daniel R Altmann, Carmen Tur, M Jorge Cardoso, Floriana De Angelis, Steven H van de Pavert, Niamh Cawley, Nicola De Stefano, M Laura Stromillo, Marco Battaglini, Serena Ruggieri, Claudio Gasperini, Massimo Filippi, Maria A Rocca, Alex Rovira, Jaume Sastre-Garriga, Hugo Vrenken, Cyra E Leurs, Joep Killestein, Lukas Pirpamer, Christian Enzinger, Sebastien Ourselin, Claudia A M Gandini Wheeler-Kingshott, Declan Chard, Alan J Thompson, Daniel C Alexander, Frederik Barkhof, Olga Ciccarelli
OBJECTIVE: Grey matter (GM) atrophy occurs in all multiple sclerosis (MS) phenotypes. We investigated whether there is a spatiotemporal pattern of GM atrophy that is associated with faster disability accumulation in MS. METHODS: We analysed 3,604 brain high-resolution T1-weighted MRI scans from 1,417 participants: 1,214 MS patients (253 clinically-isolated syndrome[CIS], 708 relapsing-remitting[RRMS], 128 secondary-progressive[SPMS], 125 primary-progressive[PPMS]), over an average follow-up of 2...
January 13, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29329261/sitting-posture-monitoring-system-based-on-a-low-cost-load-cell-using-machine-learning
#4
Jongryun Roh, Hyeong-Jun Park, Kwang Jin Lee, Joonho Hyeong, Sayup Kim, Boreom Lee
Sitting posture monitoring systems (SPMSs) help assess the posture of a seated person in real-time and improve sitting posture. To date, SPMS studies reported have required many sensors mounted on the backrest plate and seat plate of a chair. The present study, therefore, developed a system that measures a total of six sitting postures including the posture that applied a load to the backrest plate, with four load cells mounted only on the seat plate. Various machine learning algorithms were applied to the body weight ratio measured by the developed SPMS to identify the method that most accurately classified the actual sitting posture of the seated person...
January 12, 2018: Sensors
https://www.readbyqxmd.com/read/29328190/orbital-angular-momentum-generation-via-a-spiral-phase-microsphere
#5
Yan Zhou, Hui Gao, Jinghua Teng, Xiangang Luo, Minghui Hong
Vortex beam carrying orbital angular momentum (OAM) attracts much attention in many research fields for its special phase and intensity distributions. In this Letter, a novel design called the spiral phase microsphere (SPMS) is proposed for the first time, to the best of our knowledge, which can convert incident plane wave light into the focused vortex beam that carries OAM with different topological charges l=±1 and ±2. The vortex beam generation is verified by a self-interfered modification of the SPMS...
January 1, 2018: Optics Letters
https://www.readbyqxmd.com/read/29302056/human-macrophages-differentially-produce-specific-resolvin-or-leukotriene-signals-that-depend-on-bacterial-pathogenicity
#6
Oliver Werz, Jana Gerstmeier, Stephania Libreros, Xavier De la Rosa, Markus Werner, Paul C Norris, Nan Chiang, Charles N Serhan
Proinflammatory eicosanoids (prostaglandins and leukotrienes) and specialized pro-resolving mediators (SPM) are temporally regulated during infections. Here we show that human macrophage phenotypes biosynthesize unique lipid mediator signatures when exposed to pathogenic bacteria. E. coli and S. aureus each stimulate predominantly proinflammatory 5-lipoxygenase (LOX) and cyclooxygenase pathways (i.e., leukotriene B4 and prostaglandin E2) in M1 macrophages. These pathogens stimulate M2 macrophages to produce SPMs including resolvin D2 (RvD2), RvD5, and maresin-1...
January 4, 2018: Nature Communications
https://www.readbyqxmd.com/read/29289234/digitally-controlled-analog-proportional-integral-derivative-pid-controller-for-high-speed-scanning-probe-microscopy
#7
Maja Dukic, Vencislav Todorov, Santiago Andany, Adrian P Nievergelt, Chen Yang, Nahid Hosseini, Georg E Fantner
Nearly all scanning probe microscopes (SPMs) contain a feedback controller, which is used to move the scanner in the direction of the z-axis in order to maintain a constant setpoint based on the tip-sample interaction. The most frequently used feedback controller in SPMs is the proportional-integral (PI) controller. The bandwidth of the PI controller presents one of the speed limiting factors in high-speed SPMs, where higher bandwidths enable faster scanning speeds and higher imaging resolution. Most SPM systems use digital signal processor-based PI feedback controllers, which require analog-to-digital and digital-to-analog converters...
December 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/29276624/subcutaneous-interferon-%C3%AE-1a-three-times-weekly-and-the-natural-evolution-of-gadolinium-enhancing-lesions-into-chronic-black-holes-in-relapsing-and-progressive-multiple-sclerosis-analysis-of-prisms-and-spectrims-trials
#8
A Traboulsee, Dkb Li, R Tam, G Zhao, A Riddehough, J Fang, F Dangond, L Kappos
Background: Evolution of gadolinium-enhancing lesions into chronic black holes (CBH) may be reduced by interferon (IFN) therapy. Objective: The objective of this paper is to assess the effect of IFN β-1a and placebo on CBH evolution and disability in patients with relapsing-remitting multiple sclerosis (RRMS), as well as CBH evolution in patients with secondary progressive multiple sclerosis (SPMS). Methods: A post hoc, exploratory analysis of patients with RRMS and SPMS with monthly MRI scans (months -1 to 9) from two separate placebo-controlled clinical trials of IFN β-1a was conducted...
October 2017: Multiple Sclerosis Journal—Experimental, Translational and Clinical
https://www.readbyqxmd.com/read/29275315/clinical-and-prognostic-analysis-of-hypopharyngeal-squamous-cell-carcinoma-with-synchronous-and-metachronous-multiple-malignancies
#9
Keisuke Yamamoto, Kenichi Takano, Atsushi Kondo, Makoto Kurose, Kazufumi Obata, Tetsuo Himi
BACKGROUND/AIM: To analyze the clinical features and prevalence of synchronous and metachronous second primary malignancies (SPMs) in patients with hypopharyngeal squamous cell carcinoma (HSCC), their associated risk factors, and cause-specific mortality. PATIENTS AND METHODS: We retrospectively reviewed 136 patients treated with curative intent at our hospital. Statistical analyses were performed to determine factors predictive of SPM and cause-specific mortality...
January 2018: In Vivo
https://www.readbyqxmd.com/read/29246612/extracellular-mir-145-mir-223-and-mir-326-expression-signature-allow-for-differential-diagnosis-of-immune-mediated-neuroinflammatory-diseases
#10
Wessam E Sharaf-Eldin, Nirmeen A Kishk, Yehia Z Gad, Heba Hassan, Mohamed A M Ali, Maha S Zaki, Mohamed R Mohamed, Mona L Essawi
BACKGROUND: Although misdiagnosis of neuromyelitis optica spectrum disorder (NMOSD) with neuropsychiatric systemic lupus erythematosus (NPSLE) or multiple sclerosis (MS) is not infrequent, reliable biomarkers remains an unmet need. Extracellular microRNAs (miRNAs) represent a worthy avenue to identify biomarkers for differential diagnosis. We aimed to explore the potential role of some selected circulating miRNAs as biomarkers for the differential diagnosis in immune-mediated neuroinflammatory diseases...
December 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29234305/functional-components-of-cognitive-impairment-in-multiple-sclerosis-a-cross-sectional-investigation
#11
Jordi A Matias-Guiu, Ana Cortés-Martínez, María Valles-Salgado, Celia Oreja-Guevara, Vanesa Pytel, Paloma Montero, Teresa Moreno-Ramos, Jorge Matias-Guiu
Background: Cognitive impairment is frequent and disabling in multiple sclerosis (MS). Changes in information processing speed constitute the most important cognitive deficit in MS. However, given the clinical and topographical variability of the disease, cognitive impairment may vary greatly and appear in other forms in addition to slower information processing speed. Our aim was to determine the frequency of cognitive impairment, the principal cognitive domains, and components involved in MS and to identify factors associated with presence of cognitive impairment in these patients in a large series of patients...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29224960/persons-with-secondary-progressive-and-relapsing-remitting-multiple-sclerosis-reveal-different-responses-of-tryptophan-metabolism-to-acute-endurance-exercise-and-training
#12
Jens Bansi, Christina Koliamitra, Wilhelm Bloch, Niklas Joisten, Alexander Schenk, Matthew Watson, Jan Kool, Dawn Langdon, Ulrik Dalgas, Jürg Kesselring, Philipp Zimmer
Disturbances in Tryptophan metabolism play a crucial role in multiple sclerosis (MS). Exercise is suspected to counteract the progress of MS and its side effects. Current research suggests alterations of Tryptophan metabolism in healthy individuals in response to exercise. We investigated the influence of acute aerobic exercise and training on Tryptophan metabolism in 57 inpatients with relapsing remitting ((RRMS) n=33) and secondary progressive ((SPMS) n=24) MS. Serotonin increased after training, whereas the kynurenine pathway was only activated in persons with RRMS...
December 6, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29223870/validation-of-an-algorithm-to-detect-severe-ms-relapses-in-administrative-health-databases
#13
James John Marriott, Hui Chen, Randall Fransoo, Ruth Ann Marrie
BACKGROUND: Severe relapses that required treatment were important outcomes in the sentinel trials of disease-modifying therapy (DMT). Identifying such relapses in administrative data would allow comparative-effectiveness studies of DMTs to be conducted in real-world clinical settings. METHODS: All relapsing-remitting (RRMS) and secondary-progressive (SPMS) patients living in Manitoba between 1999 and 2015 were identified using a validated case definition and linkage to the Manitoba MS Clinic database...
December 2, 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29216408/a-cold-responsive-erf-from-medicago-falcata-confers-cold-tolerance-by-up-regulation-of-polyamine-turnover-antioxidant-protection-and-proline-accumulation
#14
Chunliu Zhuo, Lu Liang, Yaqing Zhao, Zhenfei Guo, Shaoyun Lu
ERF subfamily transcription factors play an important role in plant abiotic and biotic stress tolerance. A cold responsive ethylene responsive factor (ERF), MfERF1, was isolated from Medicago falcata, an important forage legume that has great cold tolerance. Overexpression of MfERF1 resulted in an increased tolerance to freezing and chilling in transgenic tobacco plants, while down-regulation of the ortholog of MfERF1 in M. truncatula resulted in reduced freezing tolerance in RNAi plants. Higher transcript levels of some stress responsive genes (CHN50, OSM, ERD10C, and SAMS) and those involved in spermidine (Spd) and spermine (Spm) synthesis (SAMDC1, SAMDC2, SPDS1, SPDS2, and SPMS) and catabolism (PAO) were observed in transgenic plants than in WT...
December 7, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/29205296/impact-of-latency-time-on-survival-for-adolescents-and-young-adults-with-a-second-primary-malignancy
#15
Melanie Goldfarb, Aaron S Rosenberg, Qian Li, Theresa H M Keegan
BACKGROUND: The adverse impact of second primary malignancies (SPMs) on survival is substantial for adolescents and young adults (AYAs; ie, those 15-39 years old). No studies have evaluated whether the latency time between the first malignancy (the primary malignancy [PM]) and the SPM affects cancer-specific survival (CSS). METHODS: A multivariate Cox proportional hazards regression with Surveillance, Epidemiology, and End Results data for 13 regions from 1992 to 2008 was used to ascertain whether the latency time (1-5 vs ≥ 6 years) to the development of an SPM affected the CSS and overall survival with respect to either the PM or SPM for AYAs with common SPMs...
December 4, 2017: Cancer
https://www.readbyqxmd.com/read/29204985/comparison-of-the-characteristics-of-macrophages-derived-from-murine-spleen-peritoneal-cavity-and-bone-marrow
#16
Yan-Long Zhao, Pu-Xun Tian, Feng Han, Jin Zheng, Xin-Xin Xia, Wu-Jun Xue, Xiao-Ming Ding, Chen-Guang Ding
Macrophages have a diverse set of functions based upon their activation states. The activation states, including resting (M0) and polarizing (M1 and M2) states, of macrophages derived from the mouse bone marrow, spleen, and peritoneal cavity (BMs, SPMs, and PCMs, respectively) were compared. We evaluated the macrophage yield per mouse and compared the surface markers major histocompatibility complex (MHC) II and CD86 by flow cytometry. The relative mRNA levels of tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, mannose receptor (MR), and Ym1 in the M0, M1, and M2 states were also compared using real-time polymerase chain reaction (PCR) analysis...
2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/29177070/evaluation-of-neurological-changes-in-secondary-progressive-multiple-sclerosis-patients-treated-with-immune-modulator-mis416-results-from-a-feasibility-study
#17
Gill A Webster, Dalice A Sim, Anne C La Flamme, Nancy E Mayo
Background: While disease progression can be readily monitored in early stage relapsing multiple sclerosis (MS), it is more challenging for secondary progressive multiple sclerosis (SPMS). This advanced stage of disease has distinct pathophysiology due to compartmentalization of neuroinflammatory activity within the central nervous system, resulting in increased incidence and severity of cognitive dysfunction. The shift in the dominant disease pathways is underscored by the failure of relapsing therapies to benefit SPMS patients, highlighting the need for novel treatment strategies and clinical trial endpoints that are well-aligned with potential benefits...
2017: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/29150799/a-hybrid-approach-based-on-logistic-classification-and-iterative-contrast-enhancement-algorithm-for-hyperintense-multiple-sclerosis-lesion-segmentation
#18
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
#19
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
#20
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
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