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https://www.readbyqxmd.com/read/28106960/a-novel-technique-to-exclude-the-left-ventricle-with-an-assist-device
#1
Stefan Klotz, Roza MeyerSaraei, Alex Frydrychowicz, Michael Scharfschwerdt, Andreas Koertge, Leon Putman, Hans Sievers
Left ventricular assist device implantation disrupts the natural intracavitary blood flow path through the heart, introducing flow patterns potentially associated with thrombosis, especially around the inflow cannula. We describe a novel technique for completely excluding the left ventricle with an assist device by using a cone shaped ring-reinforced prosthesis.
December 9, 2016: Multimedia Manual of Cardiothoracic Surgery: MMCTS
https://www.readbyqxmd.com/read/28106768/lipid-and-glycolipid-isomer-analyses-using-ultra-high-resolution-ion-mobility-spectrometry-separations
#2
Roza Wojcik, Ian K Webb, Liulin Deng, Sandilya V B Garimella, Spencer A Prost, Yehia M Ibrahim, Erin S Baker, Richard D Smith
Understanding the biological roles and mechanisms of lipids and glycolipids is challenging due to the vast number of possible isomers that may exist. Mass spectrometry (MS) measurements are currently the dominant approach for studying and providing detailed information on lipid and glycolipid presence and changes. However, difficulties in distinguishing the many structural isomers, due to the distinct lipid acyl chain positions, double bond locations or specific glycan types, inhibit the delineation and assignment of their biological roles...
January 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106478/uremic-calciphylaxis-325
#3
Katherine Roza, Jason C George, Maria Bermudez, Zankhana Mehta
No abstract text is available yet for this article.
January 20, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28104190/in%C3%A2-vitro-coronary-flow-after-transcatheter-aortic-valve-in-valve-implantation-a-comparison-of-2-valves
#4
Sina Stock, Michael Scharfschwerdt, Roza Meyer-Saraei, Doreen Richardt, Efstratios I Charitos, Hans-Hinrich Sievers, Thorsten Hanke
BACKGROUND: Transcatheter aortic valve-in-valve implantation (TAVI-ViV) is an evolving treatment strategy for degenerated surgical aortic valve bioprostheses (SAVBs). However, there is some concern regarding coronary obstruction, especially after TAVI-ViV in calcified SAVBs with externally mounted leaflets. We investigated in vitro coronary flow and hydrodynamics after TAVI-ViV using 2 modern SAVBs with externally and internally mounted leaflets. METHODS: Aortic root models including known risk factors for coronary obstruction served for the implantation of SAVBs with either externally mounted leaflets (St Jude Trifecta, size 25) or internally mounted leaflets (Edwards Perimount Magna Ease, size 25)...
February 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28103832/thromboelastometry-analysis-of-thrombocytopenic-dengue-patients-a-cross-sectional-study
#5
Felipe Maia de Toledo Piza, Thiago Domingos Corrêa, Alexandre Rodrigues Marra, João Carlos Campos Guerra, Roseny Dos Reis Rodrigues, Andrea Aparecida Rocco Villarinho, Valdir Fernandes de Aranda, Sandra Christina Pereira Lima Shiramizo, Maria Roza de Jesus de Lima, Esper Georges Kallas, Alexandre Biasi Cavalcanti
BACKGROUND: Dengue virus infection (DVI) is a prevalent and potentially fatal viral disease associated with coagulopathy. So far, the coagulation profile of DVI patients with thrombocytopenia has not been assessed through a viscoelastic test such as rotational thromboelastometry. We aimed to describe the prevalence and characteristics of coagulation abnormalities in dengue fever outpatients with thrombocytopenia, addressed by both rotational thromboelastometry and conventional coagulation tests...
January 19, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28097524/pubovisceralis-muscle-fiber-architecture-determination-comparison-between-biomechanical-modeling-and-diffusion-tensor-imaging
#6
Sofia Brandão, Marco Parente, Elisabete Silva, Thuane Da Roza, Teresa Mascarenhas, João Leitão, João Cunha, Renato Natal Jorge, Rita Gouveia Nunes
Biomechanical analysis of pelvic floor dysfunction requires knowledge of certain biomechanical parameters, such as muscle fiber direction, in order to adequately model function. Magnetic resonance (MR) diffusion tensor imaging (DTI) provides an estimate of overall muscle fiber directionality based on the mathematical description of water diffusivity. This work aimed at evaluating the concurrence between pubovisceralis muscle fiber representations obtained from DTI, and the maximum principal stress lines obtained through the finite element method...
January 17, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28096614/evidence-of-hemolysis-in-pigs-infected-with-highly-virulent-african-swine-fever-virus
#7
Zaven Karalyan, Hovakim Zakaryan, Elina Arakelova, Violeta Aivazyan, Marina Tatoyan, Armen Kotsinyan, Roza Izmailyan, Elena Karalova
AIM: The research was conducted to understand more profoundly the pathogenetic aspects of the acute form of the African swine fever (ASF). MATERIALS AND METHODS: A total of 10 pigs were inoculated with ASF virus (ASFV) (genotype II) in the study of the red blood cells (RBCs), blood and urine biochemistry in the dynamics of disease. RESULTS: The major hematological differences observed in ASFV infected pigs were that the mean corpuscular volume, mean corpuscular hemoglobin, and hematocrits were significantly decreased compared to controls, and the levels of erythropoietin were significantly increased...
December 2016: Veterinary World
https://www.readbyqxmd.com/read/28071713/sinonasal-delivery-of-resveratrol-via-mucoadhesive-nanostructured-microparticles-in-a-nasal-polyp-mouse-model
#8
Mingyu Lee, Chun Gwon Park, Beom Kang Huh, Se-Na Kim, Seung Ho Lee, Roza Khalmuratova, Jong-Wan Park, Hyun-Woo Shin, Young Bin Choy
Resveratrol (RSV) has been shown to effectively suppress chronic rhinosinusitis with nasal polyps in a mouse model; however, when locally administered to the sinonasal cavity, bolus RSV is limited by low drug bioavailability owing to its low aqueous solubility and relatively rapid clearance from the administration site. To address this limitation, we propose mucoadhesive nanostructured microparticles (PLGA/PEG NM) as a potential carrier for the sinonasal delivery of RSV. In this study, PLGA/PEG NM released RSV in a sustained manner...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28067251/analgesic-and-anti-inflammatory-effects-of-the-novel-semicarbazide-sensitive-amine-oxidase-inhibitor-szv-1287-in-chronic-arthritis-models-of-the-mouse
#9
Ádám Horváth, Awt Menghis, Bálint Botz, Éva Borbély, Ágnes Kemény, Valéria Tékus, Janka Zsófia Csepregi, Attila Mócsai, Tamás Juhász, Róza Zákány, Dóra Bogdán, Péter Mátyus, Julie Keeble, Erika Pintér, Zsuzsanna Helyes
Semicarbazide-sensitive amine oxidase (SSAO) catalyses oxidative deamination of primary amines. Since there is no data about its function in pain and arthritis mechanisms, we investigated the effects of our novel SSAO inhibitor SzV-1287 in chronic mouse models of joint inflammation. Effects of SzV-1287 (20 mg/kg i.p./day) were investigated in the K/BxN serum-transfer and complete Freund's adjuvant (CFA)-evoked active immunization models compared to the reference SSAO inhibitor LJP-1207. Mechanonociception was assessed by aesthesiometry, oedema by plethysmometry, clinical severity by scoring, joint function by grid test, myeloperoxidase activity by luminescence, vascular leakage by fluorescence in vivo imaging, histopathological changes by semiquantitative evaluation, and cytokines by Luminex assay...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28058621/mesenchymal-stroma-cells-in-peritoneal-dialysis-effluents-from-patients
#10
Bin Liu, Qiunong Guan, Jing Li, Gerald da Roza, Hao Wang, Caigan Du
Mesenchymal stroma cells (MSCs) have potential as an emerging cell therapy for treating many different diseases, but discovery of the practical sources of MSCs is needed for the large-scale clinical application of this therapy. This study was to identify MSCs in peritoneal dialysis (PD) effluents that were discarded after PD. The effluents were collected from patients who were on the dialysis for less than 1 month. Adherent cells from the effluents were isolated by incubation in serum-containing medium in plastic culture dishes...
January 5, 2017: Human Cell
https://www.readbyqxmd.com/read/28050535/anterior-cruciate-ligament-and-meniscal-injuries-in-sports-incidence-time-of-practice-until-injury-and-limitations-caused-after-trauma
#11
Diego Costa Astur, Marcos Xerez, João Rozas, Pedro Vargas Debieux, Carlos Eduardo Franciozi, Moises Cohen
OBJECTIVE: To analyze the incidence of ACL and meniscal injuries in a population of recreational and elite athletes from Brazil and the relation of these injuries with their sports activities. METHODS: This was a prospective observational study of 240 patients with ACL and/or meniscal injuries submitted to surgical treatment. Data of patients and sport modality, as well as Tegner score were registered in the first clinical evaluation. The patients were divided into three groups: (1) isolated rupture of the ACL; (2) ACL injury associated with meniscal injury; (3) isolated menisci injury...
November 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28049565/adapting-the-concepts-of-brain-and-cognitive-reserve-to-post-stroke-cognitive-deficits-implications-for-understanding-neglect
#12
Roza M Umarova
Advanced lesion mapping and connectivity analyses are currently the main tools used to understand the mechanisms underlying post-stroke cognitive deficits. However, the factors contributing to pre-stroke architecture of cognitive networks are often ignored, even though they reportedly play a decisive role in the manifestation of cognitive impairment in neurodegeneration. The present review on post-stroke cognitive deficits therefore adopts the concept of brain and cognitive reserve, which was originally developed to account for the individual differences in the course of aging and neurodegenerative diseases...
December 16, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28031251/expression-and-biochemical-characterization-and-substrate-specificity-of-the-fucoidanase-from-formosa-algae
#13
Artem S Silchenko, Nadezhda E Ustyuzhanina, Mikhail I Kusaykin, Vadim B Krylov, Alexander S Shashkov, Andrey S Dmitrenok, Roza V Usoltseva, Anastasiya O Zueva, Nikolay E Nifantiev, Tatyana N Zvyagintseva
A gene that encodes fucoidanase ffa2 in the marine bacterium Formosa algae strain KMM 3553(T) was cloned, and the protein (FFA2) was produced in Escherichia coli Recombinant fucoidanase FFA2 was purified, and the biochemical properties of this enzyme were studied. The amino acid sequence of FFA2 showed 57% identity with known fucoidanase FcnA from Mariniflexile fucanivorans. The mass of the gene product FFA2 is 101.2 kDa (918 amino acid residues). Sequence analysis has revealed that fucoidanase FFA2 belongs to the GH107 (CAZy) family...
December 28, 2016: Glycobiology
https://www.readbyqxmd.com/read/28030525/adherence-to-antituberculosis-drugs-in-children-and-adolescents-in-a-low-endemic-setting-a-retrospective-series
#14
Eva-Maria Guix-Comellas, Librada Rozas, Eneritz Velasco-Arnaiz, Victoria Morín-Fraile, Enriqueta Force-Sanmartín, Antoni Noguera-Julian
Adherence to antituberculosis drug regimens is critical for the prevention and treatment of tuberculosis in pediatrics. In a large retrospective series of children and adolescents in Barcelona, Spain, completion of treatment was worse among patients treated for latent infection, compared with those treated for active tuberculosis or receiving primary chemoprophylaxis. Toxicity and cultural and language barriers were identified as predictors of non-adherence.
December 27, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28028122/evolution-of-chemosensory-gene-families-in-arthropods-insight-from-the-first-inclusive-comparative-transcriptome-analysis-across-spider-appendages
#15
Joel Vizueta, Cristina Frías-López, Nuria Macías-Hernández, Miquel A Arnedo, Alejandro Sánchez-Gracia, Julio Rozas
Unlike hexapods and vertebrates, in chelicerates, knowledge of the specific molecules involved in chemoreception comes exclusively from the comparative analysis of genome sequences. Indeed, the genomes of mites, ticks and spiders contain several genes encoding homologs of some insect membrane receptors and small soluble chemosensory proteins. Here, we conducted for the first time a comprehensive comparative RNA-Seq analysis across different body structures of a chelicerate: the nocturnal wandering hunter spider Dysdera silvatica Schmidt 1981...
December 27, 2016: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28010873/paraffin-wax-baths-for-the-treatment-of-chronic-hand-eczema
#16
J F Mir-Bonafé, E Serra-Baldrich, E Rozas-Muñoz, L Puig
No abstract text is available yet for this article.
December 20, 2016: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28004640/designing-synthetic-rna-for-delivery-by-nanoparticles
#17
Dominika Jedrzejczyk, Edyta Gendaszewska-Darmach, Roza Pawlowska, Arkadiusz Chworos
The synthetic biology and nanobiotechnology rapid development has led to construction of various synthetic RNA nanoparticles of different functionalities and potential applications. As naturally occurring, the nucleic acids are an attractive construction material for biocompatible nanoscaffolds and nanomachines design. In this review, we provide an overview on the types of RNA, nucleic acid's nanoparticle design with the focus on relevant nanostructures utilized for gene expression regulation in cellular models...
December 22, 2016: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/27987862/structural-features-and-anticancer-activity-in-vitro-of-fucoidan-derivatives-from-brown-alga-saccharina-cichorioides
#18
Stanislav D Anastyuk, Natalia M Shevchenko, Roza V Usoltseva Menshova, Artyom S Silchenko, Pavel A Zadorozhny, Pavel S Dmitrenok, Svetlana P Ermakova
A fucoidan ScF from brown alga Saccharina cichorioides was extracted, purified and partially depolymerized by autohydrolysis at 37°C for 24, 48 and 72h. Supernatant (SN) and pellet (PL) fractions were obtained by ethanol precipitation of each sample. Unlike spectral data of ScF, NMR of PL derivatives clearly suggested the structure: 1,3-linked α-l-Fucp-4-OSO3(-) repeating unit. Molecular weights (MWs) of PL fractions were 30, 26 and 18kDa for 24, 48 and 72h of autohydrolyis, respectively. MALDI-TOFMS, size-exclusion HPLC and carbohydrate polyacrylamide-gel electrophoresis (C-PAGE) indicated a similarity of SN mixtures...
February 10, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/27982363/-efficiency-indicators-to-assess-the-organ-donation-and-transplantation-process-systematic-review-of-the-literature
#19
Marina Martins Siqueira, Claudia Affonso Araujo, Bartira de Aguiar Roza, Janine Schirmer
Objective: To search the literature and identify indicators used to monitor and control the organ donation and transplantation process and to group these indicators into categories. Method: In November 2014, a systematic review of the literature was carried out in the following databases: Biblioteca Virtual em Saúde (BVS), EBSCO, Emerald, Proquest, Science Direct, and Web of Science. The following search terms (and the corresponding terms in Brazilian Portuguese) were employed: "efficiency," "indicators," "organ donation," "tissue and organ procurement," and "organ transplantation...
August 2016: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/27977188/exchange-hole-dipole-dispersion-model-for-accurate-energy-ranking-in-molecular-crystal-structure-prediction
#20
Sarah R Whittleton, A Otero-de-la-Roza, Erin R Johnson
Accurate energy ranking is a key facet to the problem of first-principles crystal-structure prediction (CSP) of molecular crystals. This work presents a systematic assessment of B86bPBE-XDM, a semilocal density functional combined with the exchange-hole dipole moment (XDM) dispersion model, for energy ranking using 14 compounds from the first five CSP blind tests. Specifically, the set of crystals studied comprises 11 rigid, planar compounds and 3 co-crystals. The experimental structure was correctly identified as the lowest in lattice energy for 12 of the 14 total crystals...
January 3, 2017: Journal of Chemical Theory and Computation
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