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https://www.readbyqxmd.com/read/28622533/intrathecal-igm-index-correlates-with-a-severe-disease-course-in-multiple-sclerosis-clinical-and-mri-results
#1
Serkan Ozakbas, Bilge Piri Cinar, Pinar Özcelik, Hatice Baser, Gorkem Kosehasanoğullari
OBJECTIVES: Intrathecally synthesized IgM can be seen not only in the cerebrospinal fluid (CSF) in infectious and inflammatory diseases of the central nervous system, but also in that of patients with multiple sclerosis (MS). Intrathecal IgM synthesis in MS seems to be correlated with an unfavorable disease course. In one cross-sectional study, intrathecal synthesis of IgM (IgM index) was found to be correlated with cranial magnetic resonance imaging (MRI) parameters. The purpose of this study was to determine the possible relationship between the IgM index and MRI and clinical parameters...
June 1, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28620687/identification-and-characterization-of-a-biosynthetic-gene-cluster-for-tryptophan-dimers-in-deep-sea-derived-streptomyces-sp-scsio-03032
#2
Liang Ma, Wenjun Zhang, Yiguang Zhu, Guangtao Zhang, Haibo Zhang, Qingbo Zhang, Liping Zhang, Chengshan Yuan, Changsheng Zhang
Tryptophan dimers (TDs) are an important class of natural products with diverse bioactivities and share conserved biosynthetic pathways. We report the identification of a partial gene cluster (spm) responsible for the biosynthesis of a class of unusual TDs with non-planar skeletons including spiroindimicins (SPMs), indimicins (IDMs), and lynamicins (LNMs) from the deep-sea derived Streptomyces sp. SCSIO 03032. Bioinformatics analysis, targeted gene disruptions, and heterologous expression studies confirmed the involvement of the spm gene cluster in the biosynthesis of SPM/IDM/LNMs, and revealed the indispensable roles for the halogenase/reductase pair SpmHF, the amino acid oxidase SpmO, and the chromopyrrolic acid (CPA) synthase SpmD, as well as the positive regulator SpmR and the putative transporter SpmA...
June 15, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28608917/elevated-risk-of-human-papillomavirus-related-second-cancers-in-survivors-of-anal-canal-cancer
#3
Rebecca A Nelson, Lily L Lai
BACKGROUND: Over the last decade, the causal link between human papillomavirus (HPV) infection and squamous cell carcinoma of the anus (SCCA) has been well described. Because HPV infection in one site is often associated with other sites of infection, it then follows that patients with SCCA may have an increased risk of additional HPV-related cancers. Identifying and targeting at-risk sites through cancer screening and surveillance may help to guide best practices. The current study sought to ascertain sites and risk of HPV-related second primary malignancies (SPMs) in survivors of SCCA...
June 13, 2017: Cancer
https://www.readbyqxmd.com/read/28603479/mri-analysis-of-white-matter-myelin-water-content-in-multiple-sclerosis-a-novel-approach-applied-to-finding-correlates-of-cortical-thinning
#4
Michael Dayan, Sandra M Hurtado Rúa, Elizabeth Monohan, Kyoko Fujimoto, Sneha Pandya, Eve M LoCastro, Tim Vartanian, Thanh D Nguyen, Ashish Raj, Susan A Gauthier
A novel lesion-mask free method based on a gamma mixture model was applied to myelin water fraction (MWF) maps to estimate the association between cortical thickness and myelin content, and how it differs between relapsing-remitting (RRMS) and secondary-progressive multiple sclerosis (SPMS) groups (135 and 23 patients, respectively). It was compared to an approach based on lesion masks. The gamma mixture distribution of whole brain, white matter (WM) MWF was characterized with three variables: the mode (most frequent value) m1 of the gamma component shown to relate to lesion, the mode m2 of the component shown to be associated with normal appearing (NA) WM, and the mixing ratio (λ) between the two distributions...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28601572/corpus-callosum-atrophy-as-a-marker-of-clinically-meaningful-cognitive-decline-in-secondary-progressive-multiple-sclerosis-impact-on-employment-status
#5
Athanasios Papathanasiou, Lambros Messinis, Petros Zampakis, Panagiotis Papathanasopoulos
Cognitive impairment in Multiple Sclerosis (MS) is more frequent and pronounced in secondary progressive MS (SPMS). Cognitive decline is an important predictor of employment status in patients with MS. Magnetic Resonance Imaging (MRI) markers have been used to associate tissue damage with cognitive dysfunction. The aim of the study was to designate the MRI marker that predicts cognitive decline in SPMS and explore its effect on employment status. 30 SPMS patients and 30 healthy participants underwent neuropsychological assessment using the Trail Making Test (TMT) parts A and B, semantic and phonological verbal fluency task and a computerized cognitive screening battery (Central Nervous System Vital Signs)...
June 7, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28600304/second-primary-malignancies-in-retinoblastoma-patients-treated-with-intra-arterial-chemotherapy-the-first-10-years
#6
Larissa A Habib, Jasmine H Francis, Armida Wm Fabius, Pierre Y Gobin, Ira J Dunkel, David H Abramson
BACKGROUND/AIMS: Survivors of retinoblastoma carry a lifetime risk of secondary malignancies. It is well established that external beam radiation increases this risk; however, the risk with ophthalmic artery chemosurgery (OAC) remains unknown. We report on 10 years of experience with OAC and the rate of second primary malignancy (SPM) development. METHODS: This is a single-centre retrospective review approved by the Memorial Sloan Kettering Cancer Center Institutional Review Board of all patients who received OAC over a 10-year period, from May 2006 to November 2016...
June 9, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28600189/effect-of-high-dose-simvastatin-on-cognitive-neuropsychiatric-and-health-related-quality-of-life-measures-in-secondary-progressive-multiple-sclerosis-secondary-analyses-from-the-ms-stat-randomised-placebo-controlled-trial
#7
Dennis Chan, Sophie Binks, Jennifer M Nicholas, Chris Frost, M Jorge Cardoso, Sebastien Ourselin, David Wilkie, Richard Nicholas, Jeremy Chataway
BACKGROUND: In the 24-month MS-STAT phase 2 trial, we showed that high-dose simvastatin significantly reduced the annualised rate of whole brain atrophy in patients with secondary progressive multiple sclerosis (SPMS). We now describe the results of the MS-STAT cognitive substudy, in which we investigated the treatment effect on cognitive, neuropsychiatric, and health-related quality-of-life (HRQoL) outcome measures. METHODS: We did a secondary analysis of MS-STAT, a 24-month, double-blind, controlled trial of patients with SPMS done at three neuroscience centres in the UK between Jan 28, 2008, and Nov 4, 2011...
June 6, 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28572730/characteristics-burden-of-illness-and-physical-functioning-of-patients-with-relapsing-remitting-and-secondary-progressive-multiple-sclerosis-a-cross-sectional-us-survey
#8
Hillary J Gross, Crystal Watson
BACKGROUND: Although most patients with relapsing-remitting multiple sclerosis (RRMS) will develop secondary progressive multiple sclerosis (SPMS), little is known about the burden of multiple sclerosis by disease subtype. This study describes the burden of disease in terms of demographics, disease severity, symptoms, health care resource and disease-modifying therapy (DMT) utilization, work and activity impairment, and physical functioning of SPMS and RRMS patients. METHODS: SPMS and RRMS patient responses from the 2012 and 2013 waves of the US National Health and Wellness Survey were evaluated to detect differences in demographics, disease severity, symptoms, and health care resource and DMT utilization...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28569645/in-vivo-evidence-of-oxidative-stress-in-brains-of-patients-with-progressive-multiple-sclerosis
#9
In-Young Choi, Phil Lee, Peter Adany, Abbey J Hughes, Scott Belliston, Douglas R Denney, Sharon G Lynch
BACKGROUND: The oxidative stress hypothesis links neurodegeneration in the later, progressive stages of multiple sclerosis (MS) to the loss of a major brain antioxidant, glutathione (GSH). OBJECTIVE: We measured GSH concentrations among major MS subtypes and examined the relationships with other indices of disease status including physical disability and magnetic resonance imaging (MRI) measures. METHODS: GSH mapping was performed on the fronto-parietal region of patients with relapsing-remitting multiple sclerosis (RRMS, n = 21), primary progressive multiple sclerosis (PPMS, n = 20), secondary progressive multiple sclerosis (SPMS, n = 20), and controls ( n = 28) using GSH chemical shift imaging...
June 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28543098/brain-endothelial-cell-expression-of-sparcl-1-is-specific-to-chronic-multiple-sclerosis-lesions-and-is-regulated-by-inflammatory-mediators-in-vitro
#10
C Bridel, M J A Koel-Simmelink, L Peferoen, C Derada Troletti, S Durieux, R Gorter, E Nutma, P Gami, E Iacobeus, L Brundin, J Kuhle, H Vrenken, J Killestein, S R Piersma, T V Pham, H E De Vries, S Amor, C R Jimenez, C E Teunissen
AIMS: Cell matrix modulating protein SPARCL-1 is highly expressed by astrocytes during CNS development and following acute CNS damage. Applying NanoLC-MS/MS to CSF of RRMS and SPMS patients, we identified SPARCL-1 as differentially expressed between these two stages of MS, suggesting a potential as CSF biomarker to differentiate RRMS from SPMS and a role in MS pathogenesis. METHODS: This study examines the potential of SPARCL-1 as CSF biomarker discriminating RRMS from SPMS in 3 independent cohorts (n=249), analyses its expression pattern in MS lesions (n= 26), and studies its regulation in cultured human brain microvasculature endothelial cells (BEC) after exposure to MS-relevant inflammatory mediators...
May 24, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28542862/subsequent-primary-malignancies-after-diffuse-large-b-cell-lymphoma-in-the-modern-treatment-era
#11
Li Tao, Christina A Clarke, Aaron S Rosenberg, Ranjana H Advani, Brian A Jonas, Christopher R Flowers, Theresa H M Keegan
With the addition of rituximab and other treatment advances, survival after diffuse large B-cell lymphoma (DLBCL) has improved, but subsequent primary malignancies (SPMs) have emerged as an important challenge for DLBCL survivorship. We calculated standardized incidence ratios (SIRs) and 95% confidence intervals (CIs) for SPMs among 23 879 patients who survived at least 1 year after a first primary DLBCL diagnosed during 1989-2012, compared to the general population in California. Cumulative incidence (CMI) of SPMs, accounting for the competing risk of death, also was calculated...
May 25, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28528513/the-expansive-role-of-oxylipins-on-platelet-biology
#12
REVIEW
Jennifer Yeung, Megan Hawley, Michael Holinstat
In mammals, three major oxygenases, cyclooxygenases (COXs), lipoxygenases (LOXs), and cytochrome P450 (CYP450), generate an assortment of unique lipid mediators (oxylipins) from polyunsaturated fatty acids (PUFAs) which exhibit pro- or anti-thrombotic activity. Over the years, novel oxylipins generated from the interplay of theoxygenase activity in various cells, such as the specialized pro-resolving mediators (SPMs), have been identified and investigated in inflammatory disease models. Although platelets have been implicated in inflammation, the role and mechanism of these SPMs produced from immune cells on platelet function are still unclear...
June 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28524746/a-contemporary-profile-of-primary-progressive-multiple-sclerosis-participants-from-the-narcoms-registry
#13
Amber Salter, Nina P Thomas, Tuula Tyry, Gary R Cutter, Ruth Ann Marrie
BACKGROUND: Primary progressive multiple sclerosis (PPMS) represents 10%-15% of all multiple sclerosis (MS) diagnoses. Information regarding socio-demographic and clinical characteristics of persons with PPMS is limited. OBJECTIVE: To characterize persons with PPMS in the North American Research Committee on Multiple Sclerosis (NARCOMS) Registry. METHODS: We compared demographic and health-related characteristics of NARCOMS Registry participants reporting PPMS in the spring 2015 update survey with those reporting relapsing-remitting multiple sclerosis (RRMS) and secondary progressive multiple sclerosis (SPMS), with characteristics of published PPMS cohorts...
May 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28516804/spinal-cord-atrophy-as-a-primary-outcome-measure-in-phase-ii-trials-of-progressive-multiple-sclerosis
#14
Niamh Cawley, Carmen Tur, Ferran Prados, Domenico Plantone, Hugh Kearney, Khaled Abdel-Aziz, Sebastian Ourselin, Claudia Am Gandini Wheeler-Kingshott, David H Miller, Alan J Thompson, Olga Ciccarelli
OBJECTIVES: To measure the development of spinal cord (SC) atrophy over 1 year in patients with progressive multiple sclerosis (PMS) and determine the sample sizes required to demonstrate a reduction in spinal cord cross-sectional area (SC-CSA) as an outcome measure in clinical trials. METHODS: In total, 44 PMS patients (26 primary progressive multiple sclerosis (PPMS), 18 secondary progressive multiple sclerosis (SPMS)) and 29 healthy controls (HCs) were studied at baseline and 12 months...
May 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28507800/formyl-peptide-receptor-1-suppresses-gastric-cancer-angiogenesis-and-growth-by-exploiting-inflammation-resolution-pathways
#15
Nella Prevete, Federica Liotti, Anna Illiano, Angela Amoresano, Piero Pucci, Amato de Paulis, Rosa Marina Melillo
Chronic inflammation can result from inadequate engagement of resolution mechanisms, mainly accomplished by specialized pro-resolving mediators (SPMs) arising from the metabolic activity of lipoxygenases (ALOX5/15) on ω-6 or ω-3 essential polyunsaturated fatty acids (PUFA). We previously demonstrated that formyl peptide receptor 1 (FPR1) suppresses gastric cancer (GC) by inhibiting its inflammatory/angiogenic potential. In this study, we asked whether FPR1 exploits inflammation resolution pathways to suppress GC angiogenesis and growth...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28500069/b-cell-activity-is-impaired-in-human-and-mouse-obesity-and-is-responsive-to-an-essential-fatty-acid-upon-murine-influenza-infection
#16
Rasagna Kosaraju, William Guesdon, Miranda J Crouch, Heather L Teague, E Madison Sullivan, Erik A Karlsson, Stacey Schultz-Cherry, Kymberly Gowdy, Lance C Bridges, Lauren R Reese, P Darrell Neufer, Michael Armstrong, Nichole Reisdorph, J Justin Milner, Melinda Beck, Saame Raza Shaikh
Obesity is associated with increased risk for infections and poor responses to vaccinations, which may be due to compromised B cell function. However, there is limited information about the influence of obesity on B cell function and underlying factors that modulate B cell responses. Therefore, we studied B cell cytokine secretion and/or Ab production across obesity models. In obese humans, B cell IL-6 secretion was lowered and IgM levels were elevated upon ex vivo anti-BCR/TLR9 stimulation. In murine obesity induced by a high fat diet, ex vivo IgM and IgG were elevated with unstimulated B cells...
June 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28487188/poly-acrylic-acid-microspheres-loaded-with-superparamagnetic-iron-oxide-nanoparticles-for-transcatheter-arterial-embolization-and-mri-detectability-in-vitro-and-in-vivo-evaluation
#17
Zi-Yuan Li, Xiao-Ya Qin, Li-Ying Guo, Huan Wang, Xiao-Xin Liu, Zhuo-Zhao Zheng, Hai-Tao Guan, Li Song, Ying-Hua Zou, Tian-Yuan Fan
To develop embolic microspheres with MRI detectability, superparamagnetic iron oxide nanoparticles (SPIONs) were synthesized and mixed with monomer of acrylic acid to prepare SPIONs-loaded polymerized microspheres (SPMs) by inverse suspension polymerization method. The SPMs were evaluated for the ability of embolization by investigating the morphology, particle size, elasticity and renal arterial embolization to rabbits. Meanwhile, the loading of SPIONs was verified by optical microscope, transmission electron microscope, Fourier transform infrared spectrum, vibrating sample magnetometer, X-ray diffraction and X-ray photoelectron spectroscopy, and the content of SPIONs in SPMs was measured quantitatively...
May 6, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28485361/second-primary-malignancy-a-retrospective-analysis-report-from-a-tertiary-cancer-center-of-north-india
#18
D Sharma, G Singh, N Kakkar, S Raj
AIM OF STUDY: We analyzed the data of second primary malignancy (SPM) from one of the tertiary cancer centers of North India, and the basic aim was to retrieve incidence, prognosis, and outcomes. MATERIALS AND METHODS: A retrospective study was conducted in the Department of Radiation Oncology in a tertiary cancer center between January 1, 2011, and December 31, 2015. A total of 6000 cases of cancer were analyzed, out of which cases who presented with histological proven synchronous SPM were included in this study...
October 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28479307/specialized-pro-resolving-mediators-in-renal-fibrosis
#19
REVIEW
Eoin P Brennan, Antonino Cacace, Catherine Godson
Inflammation and its timely resolution play a critical role in effective host defence and wound healing. Unresolved inflammatory responses underlie the pathology of many prevalent diseases resulting in tissue fibrosis and eventual organ failure as typified by kidney, lung and liver fibrosis. The role of autocrine and paracrine mediators including cytokines, prostaglandins and leukotrienes in initiating and sustaining inflammation is well established. More recently a physiological role for specialized pro-resolving lipid mediators [SPMs] in modulating inflammatory responses and promoting the resolution of inflammation has been appreciated...
May 11, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28467982/adenosine-triphosphate-metabolism-measured-by-phosphorus-magnetic-resonance-spectroscopy-a-potential-biomarker-for-multiple-sclerosis-severity
#20
Paul Kauv, Samar S Ayache, Alain Créange, Moussa A Chalah, Jean-Pascal Lefaucheur, Jérôme Hodel, Pierre Brugières
BACKGROUND/AIMS: Phosphorus magnetic resonance spectroscopy (31P-MRS) has previously shown abnormal changes in energy metabolites in the brain of multiple sclerosis (MS) patients. However, the relationship between these energy metabolites - particularly adenosine triphosphate (ATP) - and the disease severity remains unclear. The objective of this study was to determine whether measuring ATP metabolites can help to predict disease severity in MS patients. METHODS: 31P-MRS at 3 tesla was performed in 9 relapsing remitting (RRMS), 9 secondary progressive MS patients (SPMS), and 10 age-matched healthy controls...
2017: European Neurology
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