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https://www.readbyqxmd.com/read/28449514/left-ventricular-outflow-tract-obstruction-due-to-a-left-ventricular-myxoma-that-was-misidentified-as-an-accessory-mitral-valve-tissue
#1
Seung-Hoon Baek, Hee Young Kim, Hyae Jin Kim, Sang Wook Shin, Hye Jin Kim, Yun Mi Choi, Eun Ji Choi, Eunjung Chang, Hong-Sik Son
We report obstruction of the left ventricle outflow tract (LVOT) caused by cardiac myxoma that was misidentified as an accessory mitral valve tissue preoperatively. A 65-year-old woman presented with chest discomfort that persisted for 7 days. Transthoracic echocardiography (TTE) revealed a mobile, low-echogenic, balloon-shaped mass attached to the anterior mitral valve leaflet and papillary muscle, which was suspected to be an accessory mitral valve tissue. Because the mass caused LVOT obstruction and it could result in hemodynamic instability, emergency operation was performed...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28449500/resectable-primary-pleural-myxoid-liposarcoma-with-a-pedicle-report-of-a-rare-case-and-literature-review
#2
Fang Wang, Shigeru Kiryu, Li Li, Qing Wang, Dumin Li, Lifeng Zhang
Primary pleural myxoid liposarcoma is a rare tumor. Here, we report a primary myxoid liposarcoma occupying the majority of the left thoracic cavity with features suggesting invasion. Computed tomography (CT) at medical check-up incidentally revealed a bulky inhomogeneous fatty mass. The tumor's large size made a prediction of its resectability by preoperative CT difficult. The patient underwent an operation, which revealed that the tumor was attached to the pleura with a thin pedicle; the tumor was resected completely...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28449254/bioresorbable-fe-mn-and-fe-mn-ha-materials-for-orthopedic-implantation-enhancing-degradation-through-porosity-control
#3
Michael Heiden, Eric Nauman, Lia Stanciu
Resorbable, porous iron-manganese-hydroxyapatite biocomposites with suitable degradation rates for orthopedic applications are prepared using salt-leaching for the first time. These transient biomaterials have the potential to replace inert, permanent implants that can suffer from long-term complications, or have to be surgically removed, leaving an unfavorable void. Fe30Mn-10HA materials are newly developed to address inadequate resorption rates of degradable materials proposed for orthopedic environments in the past...
April 27, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28449072/functions-of-galectins-as-self-non-self-recognition-and-effector-factors
#4
Gerardo R Vasta, Chiguang Feng, Nuria González-Montalbán, Justin Mancini, Lishi Yang, Kelsey Abernathy, Graeme Frost, Cheyenne Palm
Carbohydrate structures on the cell surface encode complex information that through specific recognition by carbohydrate-binding proteins (lectins), modulates interactions between cells, cells and the extracellular matrix, or mediates recognition of potential microbial pathogens. Galectins are a family of ß-galactoside-binding lectins, which are evolutionary conserved and have been identified in most organisms, from fungi to invertebrates and vertebrates, including mammals. Since their discovery in the 1970s, their biological roles, initially understood as limited to recognition of endogenous carbohydrate ligands in embryogenesis and development, have expanded in recent years by the discovery of their roles in tissue repair and regulation of immune homeostasis...
April 25, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28448920/the-effect-of-equiaxial-stretching-on-the-osteogenic-differentiation-and-mechanical-properties-of-human-adipose-stem-cells
#5
Sanni Virjula, Feihu Zhao, Joni Leivo, Sari Vanhatupa, Joose Kreutzer, Ted J Vaughan, Anna-Maija Honkala, Marlitt Viehrig, Conleth A Mullen, Pasi Kallio, Laoise M McNamara, Susanna Miettinen
Although mechanical cues are known to affect stem cell fate and mechanobiology, the significance of such stimuli on the osteogenic differentiation of human adipose stem cells (hASCs) remains unclear. In this study, we investigated the effect of long-term mechanical stimulation on the attachment, osteogenic differentiation and mechanical properties of hASCs. Tailor-made, pneumatic cell stretching devices were used to expose hASCs to cyclic equiaxial stretching in osteogenic medium. Cell attachment and focal adhesions were visualised using immunocytochemical vinculin staining on days 3 and 6, and the proliferation and alkaline phosphatase activity, as a sign of early osteogenic differentiation, were analysed on days 0, 6 and 10...
April 13, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28448741/chromophore-attachment-to-fusion-protein-of-streptavidin-and-recombinant-allophycocyanin-alpha-subunit
#6
Jing Wu, Huaxin Chen, Peng Jiang
The fusion protein (SLA) of streptavidin and allophycocyanin alpha subunit (holo-ApcA) was biosynthesized in Escherichia coli by a dual plasmid system. The recombinant SLA, purified by affinity chromatography, showed spectral properties similar to natural allophycocyanin alpha subunit (ApcA). Spectral and Zinc staining analysis indicated that the recombinant SLA covalently bound phycocyanobilin (PCB). To improve chromophorylation rate of recombinant SLA, an in vitro chromophore attachment reaction system was established, which contained partially chromophylated SLA, PCB and lyase CpcS...
April 27, 2017: Bioengineered
https://www.readbyqxmd.com/read/28448558/the-herpevac-trial-for-women-sequence-analysis-of-glycoproteins-from-viruses-obtained-from-infected-subjects
#7
Miguel A Minaya, Maria Korom, Hong Wang, Robert B Belshe, Lynda A Morrison
The Herpevac Trial for Women revealed that three dose HSV-2 gD vaccine was 58% protective against culture-positive HSV-1 genital disease, but it was not protective against HSV-2 infection or disease. To determine whether vaccine-induced immune responses had selected for a particular gD sequence in strains infecting vaccine recipients compared with viruses infecting control subjects, genetic sequencing studies were carried out on viruses isolated from subjects infected with HSV-1 or HSV-2. We identified naturally occurring variants among the gD sequences obtained from 83 infected subjects...
2017: PloS One
https://www.readbyqxmd.com/read/28448464/bayesian-device-free-localization-and-tracking-in-a-binary-rf-sensor-network
#8
Zhenghuan Wang, Heng Liu, Shengxin Xu, Xiangyuan Bu, Jianping An
Received-signal-strength-based (RSS-based) device-free localization (DFL) is a promising technique since it is able to localize the person without attaching any electronic device. This technology requires measuring the RSS of all links in the network constituted by several radio frequency (RF) sensors. It is an energy-intensive task, especially when the RF sensors work in traditional work mode, in which the sensors directly send raw RSS measurements of all links to a base station (BS). The traditional work mode is unfavorable for the power constrained RF sensors because the amount of data delivery increases dramatically as the number of sensors grows...
April 27, 2017: Sensors
https://www.readbyqxmd.com/read/28448016/zebrafish-in-situ-spinal-cord-preparation-for-electrophysiological-recordings-from-spinal-sensory-and-motor-neurons
#9
Rosa L Moreno, Megan Josey, Angeles B Ribera
Zebrafish, first introduced as a developmental model, have gained popularity in many other fields. The ease of rearing large numbers of rapidly developing organisms, combined with the embryonic optical clarity, served as initial compelling attributes of this model. Over the past two decades, the success of this model has been further propelled by its amenability to large-scale mutagenesis screens and by the ease of transgenesis. More recently, gene-editing approaches have extended the power of the model. For neurodevelopmental studies, the zebrafish embryo and larva provide a model to which multiple methods can be applied...
April 18, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28447865/a-versatile-stretch-sensor-for-measuring-physiological-movement-using-a-centre-loaded-end-supported-load-cell
#10
Syrpailyne Wankhar, Albert A Kota, Dheepak Selvaraj
Acquisition of movement of some body parts can provide important physiological information. In clinical practice as well as for research purposes different types of sensors such as piezoelectric crystals, conductive rubber and optical displacement sensors are used for such measurements. Each of these sensors is associated with its problems. This paper discusses the use of a stretch sensor constructed using a small metal bar, approximately the size of a zipper slider that can be sewn into a fabric in the form of a belt...
April 27, 2017: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/28447814/undetected-scars-self-criticism-attachment-and-romantic-relationships-among-otherwise-well-functioning-childhood-sexual-abuse-survivors
#11
Dana Lassri, Patrick Luyten, Peter Fonagy, Golan Shahar
BACKGROUND: Studies have consistently demonstrated the negative impact of childhood sexual abuse (CSA) on intimate relationships. The majority of studies have focused on revictimization in at-risk or clinical samples, with very few addressing the impact of CSA on otherwise well-functioning adults and even fewer investigating the psychological mechanisms involved. To fill this gap, this study focuses on the effect of CSA on "normative" (nonviolent) romantic relationships in otherwise well-functioning young women, and the mediating role of personality dimension self-criticism and attachment in this regard...
April 27, 2017: Psychological Trauma: Theory, Research, Practice and Policy
https://www.readbyqxmd.com/read/28447471/how-does-video-interaction-guidance-contribute-to-infant-and-parental-mental-health-and-well-being
#12
Hilary Kennedy, Kevin Ball, Jane Barlow
This article describes the contribution of video interaction guidance (VIG) to the development of infant and parental and VIG practitioners' mental health and well-being. The theoretical core of VIG was depicted in terms of concepts such as intersubjectivity, attunement and mediated learning. The way the VIG principles alongside the underpinning values and beliefs promote a process of attunement between parent and infant, the VIG practitioner and parent, and the VIG practitioner and supervisor is described...
April 1, 2017: Clinical Child Psychology and Psychiatry
https://www.readbyqxmd.com/read/28447294/the-binding-of-a-monoclonal-antibody-to-the-apical-region-of-scarb2-blocks-ev71-infection
#13
Xuyuan Zhang, Pan Yang, Nan Wang, Jialong Zhang, Jingyun Li, Hao Guo, Xiangyun Yin, Zihe Rao, Xiangxi Wang, Liguo Zhang
Entero virus 71 (EV71) causes hand, foot, and mouth disease (HFMD) and occasionally leads to severe neurological complications and even death. Scavenger receptor class B member 2 (SCARB2) is a functional receptor for EV71, that mediates viral attachment, internalization, and uncoating. However, the exact binding site of EV71 on SCARB2 is unknown. In this study, we generated a monoclonal antibody (mAb) that binds to human but not mouse SCARB2. It is named JL2, and it can effectively inhibit EV71 infection of target cells...
April 26, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28447242/testing-the-online-reading-effects-of-emotionality-on-relative-clause-attachment
#14
Javier García-Orza, José Manuel Gavilán, Isabel Fraga, Pilar Ferré
Previous research has shown the impact of the emotional dimension of nouns (i.e., valence and arousal) on the completion of relative clauses (RC) that are preceded by a double antecedent [e.g.,: Someone shot the servant (the first noun phrase, NP1) of the actress (the second noun phrase, NP2) who was on the balcony] (Fraga et al. in Q J Exp Psychol 65:1740-1759, 2012). The present study explored for the first time the role of emotional valence, specifically emotional positive nouns, on RC disambiguation in a self-paced reading experiment...
April 26, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28447179/influence-of-inherent-mechanophenotype-on-competitive-cellular-adherence
#15
Manisha K Shah, Iris H Garcia-Pak, Eric M Darling
Understanding the role of mechanophenotype in competitive adherence of cells to other cells versus underlying substrates can inform such processes as tissue development, cancer progression, and wound healing. This study investigated how mechanophenotype, defined by whole-cell, elastic/viscoelastic properties for the perinuclear region, and cellular assembly are intertwined through the mechanosensing process. Atomic force microscopy was used to characterize the temporal elastic/viscoelastic properties of individual and assembled fibroblasts grown on substrates with elastic moduli above, below, or similar to whole-cell mechanophenotypes measured for three, genetically modified cell lines...
April 26, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28447169/modeling-of-carbon-dioxide-mass-transfer-behavior-in-attached-cultivation-photobioreactor-using-the-analysis-of-the-ph-profiles
#16
Chunli Ji, Junfeng Wang, Runzhi Li, Tianzhong Liu
The CO2 mass transfer model associated with growth kinetics of microalgal biofilm in attached cultivation photobioreactor was developed and verified by using the analysis of pH profiles which were in equilibrium with inorganic carbon components concentrations (CO2, H2CO3, HCO3(-) and CO3(2-)) in medium. Model simulation results showed that the model well presented the biofilm growth process. The overall volumetric mass transfer coefficient of CO2 was more influenced by CO2 concentration in aerated gas but less by gas aeration rate and medium circulation rate...
April 26, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28447141/the-iliotibial-band-and-anterolateral-capsule-have-a-combined-attachment-to-the-segond-fracture
#17
Marcio Albers, Humza Shaikh, Elmar Herbst, Kentaro Onishi, Kanto Nagai, Volker Musahl, Freddie H Fu
The purpose of this report was to describe the injury mechanism, surgical findings, and outcomes in a 21-year-old professional female football player who presented with a complete anterior cruciate ligament (ACL) rupture and Segond fracture. Interview and video analysis were performed to elicit the injury mechanism. Clinical examination and imaging revealed a complete ACL tear, Segond fracture, lateral meniscus tear, MCL sprain, and posterolateral corner sprain. Examination under anaesthesia revealed Grade 2 pivot shift and varus/valgus instability...
April 26, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28447128/insufficiency-avulsion-fracture-of-the-femoral-attachment-of-the-posterior-cruciate-ligament-of-the-knee-joint
#18
Omar M Albtoush, Marius Horger
Multiple ligaments are involved in avulsion injuries of the knee joint, including both anterior and posterior cruciate ligaments; however, avulsion injury of the posterior cruciate ligament is less frequently encountered than the anterior counterpart. Furthermore, avulsion of the femoral side of the posterior cruciate ligament is far less common than the tibial one.Femoral attachment avulsion fracture of the posterior cruciate ligaments has been reported in literature in adolescents, rarely in adulthood, and never before in elderly patients, showing an inverse relationship with advancement in patient age...
April 26, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28447081/plasma-treatment-effect-on-polymer-buried-interfacial-structure-and-property
#19
Nathan W Ulrich, John Andre, Jaimal Williamson, Kang-Wook Lee, Zhan Chen
Adhesion is important in many industrial applications including those in the microelectronics industry. Flip-chip assemblies commonly utilize epoxy underfills to promote reliability and the buried interfacial structure of underfills is crucial to device lifetime. Poor adhesion at this interface can cause premature device failure. One method to increase adhesion strength is to plasma treat the substrate attached to underfills, however, the mechanism of this increase in adhesion strength has not been thoroughly investigated at the molecular level in situ, because it is difficult to probe a buried interface where the adhesion occurs...
April 27, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28446705/diverse-integrin-adhesion-stoichiometries-caused-by-varied-actomyosin-activity
#20
Natalia A Bulgakova, Jutta Wellmann, Nicholas H Brown
Cells in an organism are subjected to numerous sources of external and internal forces, and are able to sense and respond to these forces. Integrin-mediated adhesion links the extracellular matrix outside cells to the cytoskeleton inside, and participates in sensing, transmitting and responding to forces. While integrin adhesion rapidly adapts to changes in forces in isolated migrating cells, it is not known whether similar or more complex responses occur within intact, developing tissues. Here, we studied changes in integrin adhesion composition upon different contractility conditions in Drosophila embryonic muscles...
April 2017: Open Biology
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