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https://www.readbyqxmd.com/read/29792090/procedural-and-clinical-outcomes-of-endovascular-recanalization-therapy-in-patients-with-cancer-related-stroke
#1
Seunguk Jung, Cheolkyu Jung, Jae Hyoung Kim, Byung Se Choi, Yun Jung Bae, Leonard Sunwoo, Ho Geol Woo, Jun Young Chang, Beom Joon Kim, Moon-Ku Han, Hee-Joon Bae
Objective Embolism due to coagulopathy might be the main pathomechanism underlying cancer-related stroke (CRS). CRS patients with a large artery occlusion could be candidates for endovascular recanalization therapy (ERT), although its procedural and clinical outcomes are not well known. This study aimed to investigate the procedural and clinical outcomes of ERT in CRS patients and the characteristics associated with outcomes compared with those of conventional stroke patients. Methods A registry of consecutive acute ischemic stroke patients who underwent ERT between January 2011 and October 2015 was retrospectively reviewed...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29790553/xps-experimental-and-dft-investigations-on-solid-solutions-of-mo-1-x-re-x-s-2-0-x-0-20
#2
Svetlana A Dalmatova, Anastasiya D Fedorenko, Lev N Mazalov, Igor P Asanov, Alexandra Yu Ledneva, Mariya S Tarasenko, Andrey N Enyashin, Vladimir I Zaikovskii, Vladimir E Fedorov
The synthesis, characterization, experimental X-ray photoelectron spectra (XPS) and density-functional theory (DFT) investigations on solid solutions of Mo1-xRexS2 (x = 0.05, 0.10, 0.15 and 0.20) are reported herein. It is shown that even at a low concentration of dopant Re atoms, clustering occurs. At an Re concentration of 5% the formation of dimer-like impregnations is observed. An increase in the dopant concentration leads to an increase in the amount of clustered rhenium atoms and to the formation of rhombic clusters...
May 23, 2018: Nanoscale
https://www.readbyqxmd.com/read/29788156/systemic-inflammation-markers-after-simplification-to-atazanavir-ritonavir-plus-lamivudine-in-virologically-suppressed-hiv-1-infected-patients-atlas-m-substudy
#3
Simone Belmonti, Francesca Lombardi, Eugenia Quiros-Roldan, Alessandra Latini, Antonella Castagna, Alberto Borghetti, Gianmaria Baldin, Arturo Ciccullo, Roberto Cauda, Andrea De Luca, Simona Di Giambenedetto
Background: Biomarkers of systemic inflammation predict non-AIDS events and overall mortality in virologically suppressed HIV-1-infected patients. Objectives: To determine whether switching to a dual antiretroviral maintenance therapy was associated with modification of biomarkers of systemic inflammation as compared with continuation of successful standard triple therapy. Methods: In this substudy of the randomized ATLAS-M trial, we compared in virologically suppressed patients the impact at 1 year of simplification to a dual therapy with atazanavir/ritonavir plus lamivudine versus maintaining atazanavir/ritonavir plus two NRTI triple therapy on markers of systemic inflammation...
April 17, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29787767/influence-of-gag-and-rre-sequences-on-hiv-1-rna-packaging-signal-structure-and-function
#4
Siarhei Kharytonchyk, Joshua D Brown, Krista Stilger, Saif Yasin, Aishwarya S Iyer, John Collins, Michael F Summers, Alice Telesnitsky
The packaging signal (Ψ) and Rev. responsive element (RRE), enable unspliced HIV-1 RNAs' export from the nucleus and packaging into virions. For some retroviruses, engrafting Ψ onto a heterologous RNA is sufficient to direct encapsidation. In contrast, HIV-1 RNA packaging requires 5' leader Ψ elements plus poorly defined additional features. We previously defined minimal 5' leader sequences competitive with intact Ψ for HIV-1 packaging, and here examined the potential roles of additional downstream elements...
May 19, 2018: Journal of Molecular Biology
https://www.readbyqxmd.com/read/29787346/-slipped-sandwich-model-for-chitin-and-chitosan-perception-in-arabidopsis
#5
Ekaterina Gubaeva, Airat Gubaev, Rebacca Melcher, Stefan Cord-Landwehr, Ratna Singh, Nour Eddine El Gueddari, Bruno Maria Moerschbacher
Chitin, a linear polymer of N-acetyl-D-glucosamine, and chitosans, fully or partially deacetylated derivatives of chitin, are known to elicit defense reactions in higher plants. We compared the ability of chitin and chitosan oligomers and polymers (chitin oligomers with degree of polymerization 3 to 8; chitosan oligomers with degree of acetylation 0% to 35% and degree of polymerization 3 to 15; chitosan polymers with degree of acetylation 1% to 60% and degree of polymerization ~1300) to elicit an oxidative burst indicative of induced defense reactions in A...
May 22, 2018: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29784833/bet-1-does-a-normal-d-dimer-rule-out-cerebral-venous-sinus-thrombosis-cvst
#6
Emma Smith, Varun Kumar
No abstract text is available yet for this article.
June 2018: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/29783247/predictors-of-thrombogenesis-by-the-state-of-pro-and-anticoagulant-components-of-hemostasis-in-the-patients-with-stage-vd-chronic-kidney-disease
#7
Olexiy B Storozhuk, Iryna B Seleznyova, Larisa O Storozhuk, Boris G Storozhuk, Tetyana V Dovgalyuk
OBJECTIVE: Introduction: One of the major complications of stage V chronic kidney disease (CKD), treated by program hemodialysis, are hemostatic system disturbances resulting in thrombosis development. To detect early predictors of potential thrombosis in study category of patients is rather difficult because of inflammatory process, accumulation of antibodies, continuous damage of blood elements. The aim: To estimate potential applicability of activators and inhibitors of thrombogenesis as thrombophilia markers in the patients with stage V CKD, treated by program hemodialysis...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29782079/the-dipep-diagnosis-of-pe-in-pregnancy-study-an-observational-study-of-the-diagnostic-accuracy-of-clinical-assessment-d-dimer-and-chest-x-ray-for-suspected-pulmonary-embolism-in-pregnancy-and-postpartum
#8
Steve Goodacre, Kimberley Horspool, Catherine Nelson-Piercy, Marian Knight, Neil Shephard, Fiona Lecky, Steven Thomas, Beverley J Hunt, Gordon Fuller
OBJECTIVE: To identify clinical features associated with PE diagnosis and determine the accuracy of decision rules and D-dimer for diagnosing suspected PE in pregnant/postpartum women. DESIGN: Observational cohort study augmented with additional cases. SETTING: Emergency departments and maternity units at eleven prospectively recruiting sites and maternity units in the United Kingdom Obstetric Surveillance System (UKOSS). POPULATION: 324 pregnant/postpartum women with suspected PE and 198 pregnant/postpartum women with diagnosed PE...
May 21, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29780589/at-the-threshold-of-certainty-risk-stratification-and-clinical-assessment-incongruity-in-the-diagnosis-of-aortic-dissection
#9
Maxim Zlatopolsky, Daniel Brancheau, Marcel Zughaib
The use of D-dimer assay to screen for aortic dissection has become routine in clinical practice. Although an uncommon disease entity, aortic dissection is rapidly fatal without prompt diagnosis, and biochemical detection in the proper clinical context is crucial. We performed a retrospective chart review of all aortic dissections presenting to a community tertiary care center between 2000 and 2016 and identified three patients in whom laboratory D-dimer testing was positive and a diagnosis of Stanford Type A aortic dissection was confirmed with computed tomography angiography based on clinical assessment and a newly validated risk stratification tool...
2018: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29779487/expression-purification-and-characterization-of-a-gii-4-norovirus-protease
#10
Benjamin D Kuiper, Bradley J Keusch, Joshua Holcomb, Kendall M Muzzarelli, Franck Amblard, Peng Liu, Shaoman Zhou, Iulia A Kovari, Zhe Yang, Raymond F Schinazi, Ladislau C Kovari
BACKGROUND: Noroviruses are the leading cause of acute gastroenteritis worldwide. Norovirus proteases, which are responsible for cleavage of the viral polyprotein, have become an attractive drug target to treat norovirus infections. Genogroup II (GII) noroviruses are responsible for a majority of outbreaks; however, limited data exist regarding GII norovirus proteases. METHOD: The Minerva virus protease (MVpro), a genogroup II genotype 4 (GII.4) norovirus protease was expressed in E...
May 20, 2018: Infectious Disorders Drug Targets
https://www.readbyqxmd.com/read/29779183/molecular-characterization-and-potential-synthetic-applications-of-gh1-%C3%AE-glucosidase-from-higher-termite-microcerotermes-annandalei
#11
Siriphan Arthornthurasuk, Wantha Jenkhetkan, Eukote Suwan, Daranee Chokchaichamnankit, Chantragan Srisomsap, Pakorn Wattana-Amorn, Jisnuson Svasti, Prachumporn T Kongsaeree
A novel β-glucosidase from higher termite Microcerotermes annandalei (MaBG) was obtained via a screening method targeting β-glucosidases with increased activities in the presence of glucose. The purified natural MaBG showed a subunit molecular weight of 55 kDa and existed in a native form as a dimer without any glycosylation. Gene-specific primers designed from its partial amino acid sequences were used to amplify the corresponding 1,419-bp coding sequence of MaBG which encodes a 472-amino acid glycoside hydrolase family 1 (GH1) β-glucosidase...
May 19, 2018: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29777099/targeting-g-protein-coupled-receptor-signaling-at-the-g-protein-level-with-a-selective-nanobody-inhibitor
#12
Sahil Gulati, Hui Jin, Ikuo Masuho, Tivadar Orban, Yuan Cai, Els Pardon, Kirill A Martemyanov, Philip D Kiser, Phoebe L Stewart, Christopher P Ford, Jan Steyaert, Krzysztof Palczewski
G protein-coupled receptors (GPCRs) activate heterotrimeric G proteins by mediating a GDP to GTP exchange in the Gα subunit. This leads to dissociation of the heterotrimer into Gα-GTP and Gβγ dimer. The Gα-GTP and Gβγ dimer each regulate a variety of downstream pathways to control various aspects of human physiology. Dysregulated Gβγ-signaling is a central element of various neurological and cancer-related anomalies. However, Gβγ also serves as a negative regulator of Gα that is essential for G protein inactivation, and thus has the potential for numerous side effects when targeted therapeutically...
May 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29774348/a-new-series-of-co-ni-zn-and-cd-metal-organic-architectures-driven-by-an-unsymmetrical-biphenyl-tricarboxylic-acid-hydrothermal-assembly-structural-features-and-properties
#13
Jin-Zhong Gu, Yan Cai, Zi-Yue Qian, Min Wen, Zi-Fa Shi, Dong-Yu Lv, Alexander M Kirillov
This study reports the hydrothermal synthesis of a novel series of twelve coordination compounds, namely, {[Cd(μ-Hnbtc)(H2O)4]·H2O}n (1), [Zn2(μ-Hnbtc)2(phen)2]·2H2O (2), [Zn(Hnbtc)(phen)2(H2O)]·4.5H2O (3), [Ni(Hnbtc)(phen)2(H2O)]·6H2O (4), [Zn2(μ-Hnbtc)2(2,2'-bipy)2]·2H2O (5), [Cd3(μ5-nbtc)(μ6-nbtc)(2,2'-bipy)2(H2O)]n (6), {[Zn3(μ3-nbtc)2(phen)3(H2O)2]·4H2O} (7), [Co(H2O)6][Co2(nbtc)2(μ-4,4'-bipy)(4,4'-bipy)2(H2O)6]·8H2O (8), {[Ni3(μ4-nbtc)2(μ-4,4'-bipy)2.5(μ-H2O)(H2O)3]·4H2O}n (9), {[Cd2(μ4-nbtc)(μ-OH)(2,2'-bipy)2]·H2O}n (10), [Cd2(μ4-nbtc)(μ-OH)(phen)2(H2O)]n (11), and {[Zn2(μ5-nbtc)(μ3-OH)(μ-4,4'-bipy)]·4,4'-bipy·H2O}n (12), which are derived from 3'-nitro-biphenyl-2,4,4'-tricarboxylic acid (H3nbtc) as a virtually unexplored building block...
May 18, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29774166/hemostatic-state-augmented-with-platelet-indices-among-sudanese-diabetic-septic-foot
#14
Bashir Abdrhman Bashir, Mohamed Salih Ali
Background: Diabetes mellitus is a very rampant metabolic disorder, particularly type II. It has many complications such as the septic foot. Diabetic septic foot (DSF) patients are at high risk for coagulation abnormalities as well as surgical hazards. Owing to the potential sequelae of coagulation and vascular abnormalities, this work aimed at studying the hemostatic state and platelet indices in diabetes type II patients with septic foot. Methods: A case-control study was conducted during the period from July to September 2017 at Dr...
2018: BMC Hematology
https://www.readbyqxmd.com/read/29773800/x-ray-structure-of-a-carpet-like-antimicrobial-defensin-phospholipid-membrane-disruption-complex
#15
Michael Järvå, Fung T Lay, Thanh Kha Phan, Cassandra Humble, Ivan K H Poon, Mark R Bleackley, Marilyn A Anderson, Mark D Hulett, Marc Kvansakul
Defensins are cationic antimicrobial peptides expressed throughout the plant and animal kingdoms as a first line of defense against pathogens. Membrane targeting and disruption is a crucial function of many defensins, however the precise mechanism remains unclear. Certain plant defensins form dimers that specifically bind the membrane phospholipids phosphatidic acid (PA) and phosphatidylinositol 4,5-bisphosphate, thereby triggering the assembly of defensin-lipid oligomers that permeabilize cell membranes. To understand this permeabilization mechanism, here we determine the crystal structure of the plant defensin NaD1 bound to PA...
May 17, 2018: Nature Communications
https://www.readbyqxmd.com/read/29772969/case-control-study-of-plasma-mean-platelet-component-concentration-and-survival-analysis-for-dogs-with-immune-mediated-hemolytic-anemia
#16
Andrea Zoia, Magda Gerou-Ferriani, Michele Drigo, Marco Caldin
OBJECTIVE To determine whether dogs with immune-mediated hemolytic anemia (IMHA) had a low plasma mean platelet component (MPC) concentration and whether MPC was associated with outcome. DESIGN Retrospective case-control study and survival analysis. ANIMALS 95 dogs with IMHA (cases) as well as 95 healthy dogs and 95 sick dogs without IMHA (controls) matched to cases by age, reproductive status, and breed. PROCEDURES Plasma MPC concentration at initial examination was compared among groups. For dogs with IMHA only, sex, age, serum urea and bilirubin concentrations, Hct, platelet count, and plasma fibrinogen, D-dimer, and MPC concentrations were evaluated for associations with survival to 42 days after initial examination...
June 1, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29771985/another-cat-and-mouse-game-deciphering-the-evolution-of-the-scgb-superfamily-and-exploring-the-molecular-similarity-of-major-cat-allergen-fel-d-1-and-mouse-abp-using-computational-approaches
#17
Rajesh Durairaj, Patrick Pageat, Cécile Bienboire-Frosini
The mammalian secretoglobin (SCGB) superfamily contains functionally diverse members, among which the major cat allergen Fel d 1 and mouse salivary androgen-binding protein (ABP) display similar subunits. We searched for molecular similarities between Fel d 1 and ABP to examine the possibility that they play similar roles. We aimed to i) cluster the evolutionary relationships of the SCGB superfamily; ii) identify divergence patterns, structural overlap, and protein-protein docking between Fel d 1 and ABP dimers; and iii) explore the residual interaction between ABP dimers and steroid binding in chemical communication using computational approaches...
2018: PloS One
https://www.readbyqxmd.com/read/29771870/hyperfibrinolysis-is-an-important-cause-of-early-hemorrhage-in-patients-with-acute-promyelocytic-leukemia
#18
Yu-Hua Song, Chun Qiao, Li-Chan Xiao, Run Zhang, Hua - Lu
BACKGROUND The objective of the current study was to guide the early clinical treatment strategies by assessing the recovery of abnormal coagulation in acute promyelocytic leukemia (APL) patients during induction therapy. MATERIAL AND METHODS Retrospective analysis was performed in 112 newly-diagnosed patients with APL during induction treatment. RESULTS The early death (ED) rate in our study was 5.36% and the main cause was fetal hemorrhage. The presence of bleeding symptoms was significantly correlated with low platelet and fibrinogen levels...
May 17, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29771498/structure-and-function-of-the-transmembrane-domain-of-nsas-an-antibiotic-sensing-histidine-kinase-in-s-aureus
#19
Manasi P Bhate, Thomas Lemmin, Georg Kuenze, Bruk Mensa, Soumya Ganguly, Jason Peters, Nathan Schmidt, Jeffrey G Pelton, Carol Gross, Jens Meiler, William F DeGrado
NsaS is one of four intramembrane histidine kinases (HKs) in Staphylococcus aureus that mediate the pathogen's response to membrane active antimicrobials and human innate immunity. We describe the first integrative structural study of NsaS using a combination of solution state NMR spectroscopy, chemical-crosslinking, molecular modeling and dynamics. Three key structural features emerge: First, NsaS has a short N-terminal amphiphilic helix that anchors its transmembrane (TM) bundle into the inner leaflet of the membrane such that it might sense neighboring proteins or membrane deformations...
May 17, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29771476/questioning-the-use-of-an-age-adjusted-d-dimer-threshold-to-exclude-venous-thromboembolism-reply
#20
S Takach Lapner, Jim A Julian, Lori-Ann Linkins, Shannon Bates, Clive Kearon
In a recent analysis[1], we questioned the validity of using a progressively higher D-dimer to define a positive test as the age of patients with suspected venous thromboembolism (VTE) increased over 50 years (termed "age-adjusted D-dimer" interpretation). We hypothesized that the benefits of age-adjusted D-dimer interpretation compared with using a conventional threshold of 500 ug/L in patients of all ages were due to a non-specific increase in the average D-dimer threshold used to classify a test as positive...
May 17, 2018: Journal of Thrombosis and Haemostasis: JTH
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