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https://www.readbyqxmd.com/read/28442547/biosynthesis-of-proresolving-lipid-mediators-by-vascular-cells-and-tissues
#1
Anuran Chatterjee, Sevan Komshian, Brian E Sansbury, Bian Wu, Giorgio Mottola, Mian Chen, Matthew Spite, Michael S Conte
Recent evidence suggests that specialized proresolving lipid mediators (SPMs) generated from docosahexaenoic acid (DHA) can modulate the vascular injury response. However, cellular sources for these autacoids within the vessel wall remain unclear. Here, we investigated whether isolated vascular cells and tissues can produce SPMs and assessed expression and subcellular localization of the key SPM biosynthetic enzyme 5-lipoxygenase (LOX) in vascular cells. Intact human arteries incubated with DHA ex vivo produced 17-hydroxy DHA (17-HDHA) and D-series resolvins, as assessed by liquid chromatography-tandem mass spectrometry...
April 25, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28429241/pharmacological-approaches-to-the-management-of-secondary-progressive-multiple-sclerosis
#2
REVIEW
A Nandoskar, J Raffel, A S Scalfari, T Friede, R S Nicholas
It is well recognised that the majority of the impact of multiple sclerosis (MS), both personal and societal, arises in the progressive phase where disability accumulates inexorably. As such, progressive MS (PMS) has been the target of pharmacological therapies for many years. However, there are no current licensed treatments for PMS. This stands in marked contrast to relapsing remitting MS (RRMS) where trials have resulted in numerous licensed therapies. PMS has proven to be a more difficult challenge compared to RRMS and this review focuses on secondary progressive MS (SPMS), where relapses occur before the onset of gradual, irreversible disability, and not primary progressive MS where disability accumulation occurs without prior relapses...
April 20, 2017: Drugs
https://www.readbyqxmd.com/read/28426850/second-primary-malignant-neoplasms-and-survival-in-adolescent-and-young-adult-cancer-survivors
#3
Theresa H M Keegan, Archie Bleyer, Aaron S Rosenberg, Qian Li, Melanie Goldfarb
Importance: Although the increased incidence of second primary malignant neoplasms (SPMs) is a well-known late effect after cancer, few studies have compared survival after an SPM to survival of the same cancer occurring as first primary malignant neoplasm (PM) by age. Objective: To assess the survival impact of SPMs in adolescents and young adults (AYAs) (15-39 years) compared with that of pediatric (<15 years) and older adult (≥40 years) patients with the same SPMs...
April 20, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28396953/autologous-hematopoietic-stem-cell-transplantation-in-relapsing-remitting-multiple-sclerosis-comparison-with-secondary-progressive-multiple-sclerosis
#4
Bonaventura Casanova, Isidro Jarque, Francisco Gascón, Juan Carlos Hernández-Boluda, Francisco Pérez-Miralles, Javier de la Rubia, Carmen Alcalá, Jaime Sanz, Javier Mallada, Angeles Cervelló, Arantxa Navarré, María Carcelén-Gadea, Isabel Boscá, Sara Gil-Perotin, Carlos Solano, Miguel Angel Sanz, Francisco Coret
The main objective of our work is to describe the long-term results of myeloablative autologous hematopoietic stem cell transplant (AHSCT) in multiple sclerosis patients. Patients that failed to conventional therapies for multiple sclerosis (MS) underwent an approved protocol for AHSCT, which consisted of peripheral blood stem cell mobilization with cyclophosphamide and granulocyte colony-stimulating factor (G-CSF), followed by a conditioning regimen of BCNU, Etoposide, Ara-C, Melphalan IV, plus Rabbit Thymoglobulin...
April 10, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28396625/cd133-positive-membrane-particles-in-cerebrospinal-fluid-of-patients-with-inflammatory-and-degenerative-neurological-diseases
#5
Tobias Bobinger, Lisa May, Hannes Lücking, Stephan P Kloska, Petra Burkardt, Philipp Spitzer, Juan M Maler, Denis Corbeil, Hagen B Huttner
Background: Analysis of cerebrospinal fluid (CSF) is a frequently used diagnostic tool in a variety of neurological diseases. Recent studies suggested that investigating membrane particles enriched with the stem cell marker CD133 may offer new avenues for studying neurological disease. In this study, we evaluated the amount of membrane particle-associated CD133 in human CSF in neuroinflammatory and degenerative diseases. Methods: We compared the amount of membrane particle-associated CD133 in CSF samples collected from 45 patients with normal pressure hydrocephalus, parkinsonism, dementia, and cognitive impairment, chronic inflammatory diseases and 10 healthy adult individuals as controls...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28384363/risk-of-second-primary-malignancies-among-patients-with-prostate-cancer-a-population-based-cohort-study
#6
Chao-Yueh Fan, Wen-Yen Huang, Chun-Shu Lin, Yu-Fu Su, Cheng-Hsiang Lo, Chih-Cheng Tsao, Ming-Yueh Liu, Cheng-Li Lin, Chia-Hung Kao
PURPOSE: The rising incidence and life expectancy associated with prostate cancer (PCa) has led to increasing interest in predicting the risk of second primary malignancies (SPMs) among PCa survivors, although data regarding SPMs after PCa are controversial. METHODS: We identified 30,964 patients from the National Health Insurance Research Database in Taiwan who had newly diagnosed PCa between 2000 and 2010. Each patient was randomly frequency-matched with an individual without PCa, based on age, comorbidity, and index year...
2017: PloS One
https://www.readbyqxmd.com/read/28381130/pilot-trial-of-intravenous-autologous-culture-expanded-mesenchymal-stem-cell-transplantation-in-multiple-sclerosis
#7
Jeffrey A Cohen, Peter B Imrey, Sarah M Planchon, Robert A Bermel, Elizabeth Fisher, Robert J Fox, Amit Bar-Or, Susan L Sharp, Thomai T Skaramagas, Patricia Jagodnik, Matt Karafa, Shannon Morrison, Jane Reese Koc, Stanton L Gerson, Hillard M Lazarus
BACKGROUND: Mesenchymal stem cells (MSCs) exhibit immunomodulatory, tissue-protective, and repair-promoting properties in vitro and in animals. Clinical trials in several human conditions support the safety and efficacy of MSC transplantation. Published experience in multiple sclerosis (MS) is modest. OBJECTIVE: To assess feasibility, safety, and tolerability and explore efficacy of autologous MSC transplantation in MS. METHODS: Participants with relapsing-remitting multiple sclerosis (RRMS) or secondary progressive multiple sclerosis (SPMS), Expanded Disability Status Scale score 3...
April 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28373478/second-primary-malignancy-in-bladder-carcinoma-a-population-based-study
#8
Amit Khanal, Nibash Budhathoki, Vijay Pal Singh, Binay K Shah
BACKGROUND: A second primary malignancy is a serious long-term complication in cancer survivors. The aim of this study was to evaluate the risk of second primary malignancies (SPM) in adult patients with bladder cancer. MATERIALS AND METHODS: We selected patients ≥18 years diagnosed with bladder cancer from National Cancer Institute's Surveillance, Epidemiology and End Results (SEER) 13 database. We calculated the risk of second primary malignancies in the bladder cancer patients using the MP-SIR session of SEER*stat software...
April 2017: Anticancer Research
https://www.readbyqxmd.com/read/28356517/protectin-d1n-3-dpa-and-resolvin-d5n-3-dpa-are-effectors-of-intestinal-protection
#9
Thomas Gobbetti, Jesmond Dalli, Romain A Colas, Donata Federici Canova, Marius Aursnes, Delphine Bonnet, Laurent Alric, Nathalie Vergnolle, Celine Deraison, Trond V Hansen, Charles N Serhan, Mauro Perretti
The resolution of inflammation is an active process orchestrated by specialized proresolving lipid mediators (SPM) that limit the host response within the affected tissue; failure of effective resolution may lead to tissue injury. Because persistence of inflammatory signals is a main feature of chronic inflammatory conditions, including inflammatory bowel diseases (IBDs), herein we investigate expression and functions of SPM in intestinal inflammation. Targeted liquid chromatography-tandem mass spectrometry-based metabololipidomics was used to identify SPMs from n-3 polyunsaturated fatty acids in human IBD colon biopsies, quantifying a significant up-regulation of the resolvin and protectin pathway compared with normal gut tissue...
April 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28352187/risk-of-subsequent-primary-malignancies-among-patients-with-prior-colorectal-cancer-a-population-based-cohort-study
#10
Jiao Yang, Shuting Li, Meng Lv, Yinying Wu, Zheling Chen, Yanwei Shen, Biyuan Wang, Ling Chen, Min Yi, Jin Yang
BACKGROUND: The site-distribution pattern and relative risk of subsequent primary malignancies (SPMs) in colorectal cancer (CRC) patients remains to be determined. MATERIALS AND METHODS: A population-based cohort of 288,390 CRC patients diagnosed between 1973 and 2012 from the Surveillance, Epidemiology, and End Results database was retrospectively reviewed. Standardized incidence ratios were calculated to estimate the relative risk for SPMs. RESULTS: The overall risk of SPMs increased in CRC patients (standardized incidence ratio 1...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28338430/trends-of-second-primary-malignancy-in-patients-with-thyroid-cancer-a-population-based-cohort-study-in-israel
#11
Elena Izkhakov, Micha Barchana, Irena Liphshitz, Barbara G Silverman, Naftali Stern, Lital Keinan-Boker
BACKGROUND: Thyroid cancer (TC) is the most common endocrine malignancy. TC patients have a good prognosis and a low disease-related mortality rate. Since such patients are often young, they may be at a higher risk for a second primary malignancy (SPM). This study sought to determine the incidence, risk, and types of SPM between 1980 and 2011, and to assess SPM trends over time among Israeli TC patients. METHODS: Data were derived from the Israel National Cancer Registry...
April 21, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28302760/-11-c-pbr28-or-18-f-pbr111-detect-white-matter-inflammatory-heterogeneity-in-multiple-sclerosis
#12
Gourab Datta, Alessandro Colasanti, Nicola Kalk, David R Owen, Gregory Scott, Eugenii Ilan A Rabiner, Roger Gunn, Anne Lingford-Hughes, Omar Malik, Olga Ciccarelli, Richard Nicholas, Lei Nie, Marco Battaglini, Nicola De Stefano, Paul Matthews
Objective: To assess microglial activation in lesions and in normal appearing white matter of multiple sclerosis (MS) patients using positron emission tomography (PET). Methods: 34 MS patients (7 with secondary progressive MS (SPMS), 27 with relapsing remitting MS (RRMS)) and 30 healthy volunteers, genetically stratified for translocator protein (TSPO), binding status underwent PET scanning with TSPO radioligands ((11)C-PBR28 or (18)F-PBR111). Regional TSPO availability was measured as a distribution volume ratio (DVR) relative to the caudate (a pseudo-reference region)...
March 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28301067/progressive-iron-accumulation-across-multiple-sclerosis-phenotypes-revealed-by-sparse-classification-of-deep-gray-matter
#13
Ahmed M Elkady, Dana Cobzas, Hongfu Sun, Gregg Blevins, Alan H Wilman
PURPOSE: To create an automated framework for localized analysis of deep gray matter (DGM) iron accumulation and demyelination using sparse classification by combining quantitative susceptibility (QS) and transverse relaxation rate (R2*) maps, for evaluation of DGM in multiple sclerosis (MS) phenotypes relative to healthy controls. MATERIALS AND METHODS: R2*/QS maps were computed using a 4.7T 10-echo gradient echo acquisition from 16 clinically isolated syndrome (CIS), 41 relapsing-remitting (RR), 40 secondary-progressive (SP), 13 primary-progressive (PP) MS patients, and 75 controls...
March 16, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28284338/understanding-the-impact-of-relapses-in-the-overall-course-of-ms-refinement-of-the-2-stage-natural-history-model
#14
REVIEW
Thomas F Scott
Recent studies suggest a need for refinement of the traditional two phase model of relapse onset multiple sclerosis (RMS) to include dynamically changing subgroups within the broad category of secondary progressive MS (SPMS). These studies challenge the traditional notion that relapses play a minor role in comparison to a secondary progressive (perhaps degenerative) process. Patients fulfilling the broad definition for SPMS may take several courses, including variable rates and patterns of overall worsening...
April 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28273783/multiple-sclerosis-serum-derived-exosomes-express-myelin-proteins
#15
Grazyna Galazka, Marcin P Mycko, Igor Selmaj, Cedric S Raine, Krzysztof W Selmaj
BACKGROUND: Exosomes are small extracellular vesicles that provide cell-to-cell communication and are involved in immunoregulation. OBJECTIVE: To investigate serum exosomes for the presence of myelin proteins outside the central nervous system (CNS) and their role in multiple sclerosis (MS). METHODS: Serum, cerebrospinal fluid (CSF), and peripheral blood mononuclear cell (PBMC) samples were collected from 45 patients with relapsing-remitting MS (RRMS), 30 patients with secondary progressive MS (SPMS), and 45 healthy controls...
February 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28273770/transglutaminase-6-is-an-autoantigen-in-progressive-multiple-sclerosis-and-is-upregulated-in-reactive-astrocytes
#16
Massimiliano Cristofanilli, Daniel Gratch, Benjamin Pagano, Kelsey McDermott, Jessie Huang, Jeffrey Jian, Deneb Bates, Saud A Sadiq
BACKGROUND: Transglutaminase-6 (TGM6), a member of the transglutaminase enzyme family, is found predominantly in central nervous system (CNS) neurons under physiological conditions. It has been proposed as an autoimmune target in cerebral palsy, gluten-sensitive cerebellar ataxia, and schizophrenia. OBJECTIVE: To investigate TGM6 involvement in multiple sclerosis (MS). METHODS: Antibody levels against TGM6 (TGM6-IgG) were measured in the cerebrospinal fluid (CSF) of 62 primary progressive multiple sclerosis (PPMS), 85 secondary progressive multiple sclerosis (SPMS), and 50 relapsing-remitting multiple sclerosis (RRMS) patients and 51 controls...
December 1, 2016: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28268576/pixel-based-skin-segmentation-in-psoriasis-images
#17
Y George, M Aldeen, R Garnavi
In this paper, we present a detailed comparison study of skin segmentation methods for psoriasis images. Different techniques are modified and then applied to a set of psoriasis images acquired from the Royal Melbourne Hospital, Melbourne, Australia, with aim of finding the best technique suited for application to psoriasis images. We investigate the effect of different colour transformations on skin detection performance. In this respect, explicit skin thresholding is evaluated with three different decision boundaries (CbCr, HS and rgHSV)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28257820/specialized-pro-resolving-mediators-in-cardiovascular-diseases
#18
REVIEW
Gabrielle Fredman, Matthew Spite
The resolution of inflammation is a highly regulated process enacted by endogenous mediators including specialized pro-resolving lipid mediators (SPMs): the lipoxins, resolvins, protectins and maresins. SPMs activate specific cellular receptors to temper the production of pro-inflammatory mediators, diminish the recruitment of neutrophils, and promote the clearance of dead cells by macrophages. These mediators also enhance host-defense and couple resolution of inflammation to subsequent phases of tissue repair...
February 28, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28237084/identification-and-profiling-of-specialized-pro-resolving-mediators-in-human-tears-by-lipid-mediator-metabolomics
#19
Justin T English, Paul C Norris, Robin R Hodges, Darlene A Dartt, Charles N Serhan
Specialized pro-resolving mediators (SPM), e.g. Resolvin D1, Protectin D1, Lipoxin A₄, and Resolvin E1 have each shown to be active in ocular models reducing inflammation. In general, SPMs have specific agonist functions that stimulate resolution of infection and inflammation in animal disease models. The presence and quantity of SPM in human emotional tears is of interest. Here, utilizing a targeted LC-MS-MS metabololipidomics based approach we document the identification of pro-inflammatory (Prostaglandins and Leukotriene B₄) and pro-resolving lipid mediators (D-series Resolvins, Protectin D1, and Lipoxin A₄) in human emotional tears from 12 healthy individuals...
February 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28226754/pixel-based-skin-segmentation-in-psoriasis-images
#20
Y George, M Aldeen, R Garnavi, Y George, M Aldeen, R Garnavi, M Aldeen, Y George, R Garnavi
In this paper, we present a detailed comparison study of skin segmentation methods for psoriasis images. Different techniques are modified and then applied to a set of psoriasis images acquired from the Royal Melbourne Hospital, Melbourne, Australia, with aim of finding the best technique suited for application to psoriasis images. We investigate the effect of different colour transformations on skin detection performance. In this respect, explicit skin thresholding is evaluated with three different decision boundaries (CbCr, HS and rgHSV)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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