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https://www.readbyqxmd.com/read/27935698/tailoring-nanostructure-morphology-for-enhanced-targeting-of-dendritic-cells-in-atherosclerosis
#1
Sijia Yi, Sean David Allen, Yu-Gang Liu, Brian Zhou Ouyang, Xiaomo Li, Punn Augsornworawat, Edward Benjamin Thorp, Evan Alexander Scott
Atherosclerosis, a leading cause of heart disease, results from chronic vascular inflammation that is driven by diverse immune cell populations. Nanomaterials may function as powerful platforms for diagnostic imaging and controlled delivery of therapeutics to inflammatory cells in atherosclerosis, but efficacy is limited by nonspecific uptake by cells of the mononuclear phagocytes system (MPS). MPS cells located in the liver, spleen, blood, lymph nodes, and kidney remove from circulation the vast majority of intravenously administered nanomaterials regardless of surface functionalization or conjugation of targeting ligands...
December 9, 2016: ACS Nano
https://www.readbyqxmd.com/read/27933282/myocardial-perfusion-scintigraphy-dosimetry-optimal-use-of-spect-and-spect-ct-technologies-in-stress-first-imaging-protocol
#2
REVIEW
M Lecchi, S Malaspina, C Scabbio, V Gaudieri, A Del Sole
PURPOSE: Over the past decade, nuclear medicine experts have been seeking to minimize patient exposure to radiation in myocardial perfusion scintigraphy (MPS). This review describes the latest technological innovations in MPS, particularly with regard to dose reduction. METHODS: We searched in PubMed for original clinical papers in English, published after 2008, using the following research criteria: (dose) and ((reduction) or (reducing)) and ((myocardial) or (cardiac) or (heart)) and ((nuclear medicine) or (nuclear imaging) or (radionuclide) or (scintigraphy) or (SPET) or (SPECT))...
2016: Clinical and Translational Imaging: Reviews in Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27916847/aortic-root-dilatation-in-mucopolysaccharidosis-i-vii
#3
Meena Bolourchi, Pierangelo Renella, Raymond Y Wang
The prevalence of aortic root dilatation (ARD) in mucopolysaccharidosis (MPS) is not well documented. We investigated aortic root measurements in 34 MPS patients at the Children's Hospital of Orange County (CHOC). The diagnosis, treatment status, age, gender, height, weight and aortic root parameters (aortic valve annulus (AVA), sinuses of Valsalva (SoV), and sinotubular junction (STJ)) were extracted by retrospective chart review and echocardiographic measurements. Descriptive statistics, ANOVA, and paired post-hoc t-tests were used to summarize the aortic dimensions...
November 29, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27910891/elevated-cerebral-spinal-fluid-biomarkers-in-children-with-mucopolysaccharidosis-i-h
#4
Gerald V Raymond, Marzia Pasquali, Lynda E Polgreen, Patricia I Dickson, Weston P Miller, Paul J Orchard, Troy C Lund
Mucopolysaccharidosis (MPS) type-IH is a lysosomal storage disease that results from mutations in the IDUA gene causing the accumulation of glycosaminoglycans (GAGs). Historically, children with the severe phenotype, MPS-IH (Hurler syndrome) develop progressive neurodegeneration with death in the first decade due to cardio-pulmonary complications. New data suggest that inflammation may play a role in MPS pathophysiology. To date there is almost no information on the pathophysiologic changes within the cerebral spinal fluid (CSF) of these patients...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27904658/circulating-microparticles-enhanced-rat-vascular-wall-remodeling-following-endothelial-denudation
#5
Fan-Yen Lee, Hung-I Lu, Han-Tan Chai, Jiunn-Jye Sheu, Yi-Ling Chen, Tein-Hung Huang, Gour-Shenq Kao, Sheng-Yi Chen, Sheng-Ying Chung, Pei-Hsun Sung, Hsueh-Wen Chang, Mel S Lee, Hon-Kan Yip
This study tested the hypothesis that circulating microparticles (MPs) exacerbated vascular wall (VW) remodeling after endothelial denudation by 0.014 wire in a rat model. Adult male Sprague Dawley rats (n = 40) were equally categorized into group 1 [sham-control (SC); 3.0 mL saline intravenous injection], group 2 [SC + intravenous MPs (1.0 × 10(7)) derived from patients with carotid artery stenosis (CAS)], group 3 [femoral arterial endothelial denudation (FAED)], group 4 (FAED + MPs derived from healthy subjects), and group 5 (FAED + CAS-derived MPs)...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27894799/a-microcosm-experiment-to-determine-the-consequences-of-magnetic-microparticles-application-on-water-quality-and-sediment-phosphorus-pools
#6
A Funes, A Del Arco, I Álvarez-Manzaneda, J de Vicente, I de Vicente
This study used microcosms to evaluate the effects of adding iron (Fe) magnetic microparticles (MPs) on water quality, focusing on P concentrations in the water column and sediment. Two treatments were considered for a constant 85:1 MP:PMobile molar ratio: T-W, applying MPs on the surface water layer; and T-S, applying MPs on the sediment. MP addition reduced P concentrations in lake water and sediment, with both treatments producing a mean reduction of 68±6% in dissolved inorganic P concentration (DIP) over a 70-day oxic period and reductions of 80±8% (T-W) and 80±4% (T-S) over a 5-day anoxic period...
November 25, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27888093/randomized-trial-of-ratg-daclizumab-vs-ratg-alemtuzumab-as-dual-induction-therapy-in-renal-transplantation-results-at-8-years-of-follow-up
#7
Gaetano Ciancio, Jeffrey J Gaynor, Giselle Guerra, Junichiro Sageshima, David Roth, Linda Chen, Warren Kupin, Adela Mattiazzi, Lissett Tueros, Sandra Flores, Lois Hanson, Phillip Ruiz, Rodrigo Vianna, George W Burke
Our goal in using dual induction therapy is to bring the kidney transplant recipient closer (through more effectively timed lymphodepletion) to an optimally immunosuppressed state. Here, we report long-term results of a prospective randomized trial comparing (Group I,N=100) rATG/Dac (3 rATG, 2 Dac doses) vs. (Group II,N=100) rATG/Alemtuzumab(C1H) (1 dose each), using reduced tacrolimus dosing, EC-MPS, and early corticosteroid withdrawal. Lower EC-MPS dosing was targeted in Group II to avoid severe leukopenia...
November 22, 2016: Transplant Immunology
https://www.readbyqxmd.com/read/27877141/involvement-of-technical-reasoning-more-than-functional-knowledge-in-development-of-tool-use-in-childhood
#8
Chrystelle Remigereau, Arnaud Roy, Orianne Costini, François Osiurak, Christophe Jarry, Didier Le Gall
It is well-known that even toddlers are able to manipulate tools in an appropriate manner according to their physical properties. The ability of children to make novel tools in order to solve problems is, however, surprisingly limited. In adults, mechanical problem solving (MPS) has been proposed to be supported by "technical reasoning skills," which are thought to be involved in every situation requiring the use of a tool (whether conventional or unusual). The aim of this study was to investigate the typical development of real tool use (RTU) skills and its link with technical reasoning abilities in healthy children...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27817018/comparison-of-the-size-of-membrane-microparticles-of-different-cellular-origin-by-dynamic-light-scattering
#9
I B Alchinova, S G Khaspekova, N V Golubeva, O N Shustova, O A Antonova, M Yu Karganov, A V Mazurov
Size of membrane microparticles (MPs) from blood plasma and MPs produced in vitro by activated endothelial cells (ECs), monocytes, THP-1 monocytic cells, granulocytes, and platelets was evaluated by dynamic light scattering. MPs were sedimented from the culture media, cell supernatants, and plasma at 20 000 g for 30 min. Average diameters of all types of MPs ranged from 300 to 600 nm. Plasma MPs had the smallest size. Close sizes were registered for MPs from platelets and THP-1 cells. MPs from monocytes were larger, and MPs from granulocytes and ECs were the largest ones...
September 2016: Doklady. Biochemistry and Biophysics
https://www.readbyqxmd.com/read/27794412/prediction-of-distant-recurrence-in-resected-stage-i-and-ii-lung-adenocarcinoma
#10
Beatrice Aramini, Christian Casali, Alessandro Stefani, Stefania Bettelli, Susanne Wagner, Zaina Sangale, Elisha Hughes, Jerry S Lanchbury, Antonino Maiorana, Uliano Morandi
OBJECTIVES: Optimal procedures for adjuvant treatment and post-surgical surveillance of resected non-small-cell lung cancer remain under discussion. Pathological features are the main determinant of follow-up therapy but have limited ability to identify patients at risk of recurrence. Increasingly, molecular markers are incorporated into clinical decision-making, including measures of tumor growth. The CCP score is a quantitative, molecular measure of proliferation derived from the RNA expression of 31 cell cycle genes and a component of the molecular prognostic score (mPS)...
November 2016: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/27792894/seq-mapper-a-dna-sequence-searching-tool-for-massively-parallel-sequencing-data
#11
James Chun-I Lee, Bill Tseng, Liang-Kai Chang, Adrian Linacre
The development of massively parallel sequencing (MPS) has increased greatly the scale of DNA sequencing. The analysis of massive data-files from single MPS analysis can be a major challenge if examining the data for potential polymorphic loci. To aid in the analysis of both short tandem repeat (STR) and single nucleotide polymorphisms (SNP), we have designed a new program called SEQ Mapper to search for genetic polymorphisms within a large number of reads generated by MPS. This new program has been designed to perform sequence mapping between reference data and generated reads...
October 20, 2016: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/27789654/titanium-dioxide-food-additive-e171-induces-ros-formation-and-genotoxicity-contribution-of-micro-and-nano-sized-fractions
#12
Héloïse Proquin, Carolina Rodríguez-Ibarra, Carolyn G J Moonen, Ismael M Urrutia Ortega, Jacob J Briedé, Theo M de Kok, Henk van Loveren, Yolanda I Chirino
Since 1969, the European Union approves food-grade titanium dioxide (TiO2), also known as E171 colouring food additive. E171 is a mixture of micro-sized particles (MPs) and nano-sized particles (NPs). Previous studies have indicated adverse effects of oral exposure to E171, i.e. facilitation of colon tumour growth. This could potentially be partially mediated by the capacity to induce reactive oxygen species (ROS). The aim of the present study is to determine whether E171 exposure induces ROS formation and DNA damage in an in vitro model using human Caco-2 and HCT116 cells and to investigate the contribution of the separate MPs and NPs TiO2 fractions to these effects...
October 27, 2016: Mutagenesis
https://www.readbyqxmd.com/read/27785713/i-cell-disease-mucolipidosis-ii-alpha-beta-from-screening-to-molecular-diagnosis
#13
Ankur Singh, Rajniti Prasad, Aditya Kumar Gupta, Anil Sharma, Sandra Alves, Maria Francisca Coutinho, Seema Kapoor, Om Prakash Mishra
Mucopolysaccharidosis (MPS) and Mucolipidosis (ML) share common phenotypes (coarse facial features, organomegaly, dysostosis multiplex) despite having different molecular basis. Thus, they pose great diagnostic challenge to treating clinicians. Differentiating between the two conditions requires a battery of tests from screening to molecular diagnosis. Besides discussing differential diagnosis of MPS like features with negative urinary Glycosaminoglycans (GAG), the authors also discuss the utility of p-nitrocatechol sulphate based chemical test as an important screening tool, besides establishing molecular basis in index case...
October 27, 2016: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/27779215/the-use-of-targeted-genomic-capture-and-massively-parallel-sequencing-in-diagnosis-of-chinese-leukoencephalopathies
#14
Xiaole Wang, Fang He, Fei Yin, Chao Chen, Liwen Wu, Lifen Yang, Jing Peng
Leukoencephalopathies are diseases with high clinical heterogeneity. In clinical work, it's difficult for doctors to make a definite etiological diagnosis. Here, we designed a custom probe library which contains the known pathogenic genes reported to be associated with Leukoencephalopathies, and performed targeted gene capture and massively parallel sequencing (MPS) among 49 Chinese patients who has white matter damage as the main imaging changes, and made the validation by Sanger sequencing for the probands' parents...
October 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27779080/efficacy-of-ropinirole-loaded-plga-microspheres-for-the-reversion-of-rotenone-induced-parkinsonism
#15
Sofía Negro, Liudmilla Boeva, Karla Slowing, Ana Fernández-Carballido, Luis García-García, Emilia Barcia
A new controlled delivery system is developed for ropinirole (RP) for the treatment of Parkinson´s disease (PD) consisting in PLGA microparticles (MPs) which exhibited in vitro constant release of RP (78.23 µg/day/10 mg MPs) for 19 days. The neuroprotective effects of RP released from MPs are evaluated in SKN-AS cells after exposure to rotenone (20 μM). Cell apoptosis was significantly reduced by RP (100-120 μM). Daily doses of rotenone (2 mg/kg) given i.p. to rats induced neuronal and behavioral changes similar to those of PD...
September 28, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27777414/microparticles-in-the-blood-of-patients-with-systemic-lupus-erythematosus-sle-phenotypic-characterization-and-clinical-associations
#16
Fariborz Mobarrez, Anna Vikerfors, Johanna T Gustafsson, Iva Gunnarsson, Agneta Zickert, Anders Larsson, David S Pisetsky, Håkan Wallén, Elisabet Svenungsson
Systemic lupus erythematosus (SLE) is a prototypic autoimmune disease characterized by circulating autoantibodies and the formation of immune complexes. In these responses, the selecting self-antigens likely derive from the remains of dead and dying cells, as well as from disturbances in clearance. During cell death/activation, microparticles (MPs) can be released to the circulation. Previous MP studies in SLE have been limited in size and differ regarding numbers and phenotypes. Therefore, to characterize MPs more completely, we investigated 280 SLE patients and 280 individually matched controls...
October 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27773442/acute-and-chronic-effects-of-magnetic-microparticles-potentially-used-in-lake-restoration-on-daphnia-magna-and-chironomus-sp
#17
I Álvarez-Manzaneda, E Ramos-Rodríguez, M J López-Rodríguez, G Parra, A Funes, I de Vicente
Magnetic microparticles (MPs) have been recently proposed as a new and promising tool for restoring eutrophicated waters. In this study, we analyzed the acute (immobilization) and chronic effects of iron (Fe) MPs on Daphnia magna and on the benthic macroinvertebrate Chironomus sp. In the chronic toxicity tests the offspring production (male and female) in D. magna and the mortality of larvae and pupae, and adult emergence in Chironomus sp. experiments were used as the endpoints. The concentration of MPs that caused 50% of immobilized individuals (EC50) in the acute toxicity test was much higher in D...
October 17, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27766162/maternal-mosaicism-for-idua-deletion-clarifies-recurrence-risk-in-mps-i
#18
Catherine Breen, Jean Mercer, Simon A Jones, Amir Jahic, Lesley Heptinstall, Karen Tylee, William G Newman, Christian Beetz
Mucopolysaccharidosis I (MPS I) is a rare autosomal recessive multisystem lysosomal storage disorder. It is caused by biallelic loss-of-function variants in IDUA, encoding alpha-l iduronidase. Here, we describe an individual affected by MPS I due to a paternally inherited deletion of IDUA exons 1 and 2, c.(?_-88)_(299+1_300-1)del and a whole-gene deletion of IDUA (?_-88?)_(*136?)del secondary to maternal somatic mosaicism. We define a previously unreported mutational mechanism for this disorder.
2016: Human Genome Variation
https://www.readbyqxmd.com/read/27743312/angiotensin-receptor-blockade-mediated-amelioration-of-mucopolysaccharidosis-type-i-cardiac-and-craniofacial-pathology
#19
Mark J Osborn, Beau R Webber, Ronald T McElmurry, Kyle D Rudser, Anthony P DeFeo, Michael Muradian, Anna Petryk, Benedikt Hallgrimsson, Bruce R Blazar, Jakub Tolar, Elizabeth A Braunlin
Mucopolysaccharidosis type I (MPS IH) is a lysosomal storage disease (LSD) caused by inactivating mutations to the alpha-L-iduronidase (IDUA) gene. Treatment focuses on IDUA enzyme replacement and currently employed methods can be non-uniform in their efficacy particularly for the cardiac and craniofacial pathology. Therefore, we undertook efforts to better define the pathological cascade accounting for treatment refractory manifestations and demonstrate a role for the renin angiotensin system (RAS) using the IDUA(-/-) mouse model...
October 14, 2016: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/27742266/proteomic-analysis-of-muccopolysaccharidosis-i-mouse-brain-with-two-dimensional-polyacrylamide-gel-electrophoresis
#20
Li Ou, Michael J Przybilla, Chester B Whitley
Mucopolysaccharidosis type I (MPS I) is due to deficiency of α-l-iduronidase (IDUA) and subsequent storage of undegraded glycosaminoglycans (GAG). The severe form of the disease, known as Hurler syndrome, is characterized by mental retardation and neurodegeneration of unknown etiology. To identify potential biomarkers and unveil the neuropathology mechanism of MPS I disease, two-dimensional polyacrylamide gel electrophoresis (PAGE) and nanoliquid chromatography-tandem mass spectrometry (nanoLC-MS/MS) were applied to compare proteome profiling of brains from MPS I and control mice (5-month old)...
October 11, 2016: Molecular Genetics and Metabolism
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