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https://www.readbyqxmd.com/read/28432520/unexpected-death-after-occipital-condylar-fracture
#1
Vincent J Bulthuis, E M J Cornips, J Dings, H van Santbrink, A A Postma
We present a rare fatal complication of an occipital condylar fracture. The patient was initially neurologically intact, but showed secondary clinical deterioration. Imaging revealed extensive extra-axial hemorrhage at the craniocervical junction and an acute obstructive hydrocephalus. MR imaging demonstrated a T2 hyperintens signal in both the lower brainstem and upper cervical spinal cord, likely caused by the extra-axial hemorrhage. As prognosis was estimated infaust, supportive treatment was discontinued and the patient died soon thereafter...
April 21, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28432223/fli1-level-during-megakaryopoiesis-affects-thrombopoiesis-and-platelet-biology
#2
Karen K Vo, Danuta J Jarocha, Randolph B Lyde, Vincent Hayes, Christopher S Thom, Spencer K Sullivan, Deborah L French, Mortimer Poncz
Friend Leukemia Virus Integration 1 (FLI1), a critical transcription factor (TF) during megakaryocyte differentiation, is amongst genes hemizygously deleted in Jacobsen syndrome, resulting in a macrothrombocytopenia termed Paris-Trousseau syndrome (PTSx). Recently, heterozygote human FLI1 mutations have been ascribed to cause thrombocytopenia. We studied induced-pluripotent stem cell (iPSC)-derived megakaryocytes (iMegs) to better understand these clinical disorders, beginning with iPSCs generated from a PTSx patient and iPSCs from a control line with a targeted heterozygous FLI1 knockout (FLI1(+/-))...
April 21, 2017: Blood
https://www.readbyqxmd.com/read/28432076/is-lower-hip-range-of-motion-a-risk-factor-for-groin-pain-in-athletes-a-systematic-review-with-clinical-applications
#3
REVIEW
Igor Tak, Leonie Engelaar, Vincent Gouttebarge, Maarten Barendrecht, Sylvia Van den Heuvel, Gino Kerkhoffs, Rob Langhout, Janine Stubbe, Adam Weir
BACKGROUND: Whether hip range of motion (ROM) is a risk factor for groin pain in athletes is not known. OBJECTIVES: To systematically review the relationship between hip ROM and groin pain in athletes in cross-sectional/case-control and prospective studies. STUDY DESIGN: Systematic review, prospectively registered (PROSPERO) according to PRISMA guidelines. METHODS: Pubmed, Embase, CINAHL and SPORTDiscus were systematically searched up to December 2015...
April 21, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28431879/improvement-of-herg-romk-index-of-spirocyclic-romk-inhibitors-through-scaffold-optimization-and-incorporation-of-novel-pharmacophores
#4
Shuzhi Dong, Kelsey VanGelder, Zhi-Cai Shi, Yang Yu, Zhicai Wu, Ron Ferguson, Zack Zhiqiang Guo, Haifeng Tang, Jessica Frie, Qinghong Fu, Xin Gu, Birgit T Priest, Brande Thomas-Fowlkes, Adam Weinglass, Michael Margulis, Jessica Liu, Lee-Yuh Pai, Caryn Hampton, Robin E Haimbach, Karen Owens, Vincent Tong, Shiyao Xu, Mengwei Hu, Gloria J Zingaro, Pierre Morissette, Juliann Ehrhart, Sophie Roy, Kathleen Sullivan, Alexander Pasternak
SAR in the previously described spirocyclic ROMK inhibitor series was further evolved from lead 4 by modification of the spirocyclic core and identification of novel right-side pharmacophores. In this process, it was discovered that the spiropyrrolidinone core with the carbonyl group α to the spirocenter was preferred for potent ROMK activity. Efforts aimed at decreasing hERG affinity within the series led to the discovery of multiple novel right-hand pharmacophores including 3-methoxythiadiazole, 2-methoxypyrimidine, and pyridazinone...
March 30, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28431281/dengue-virus-replicates-and-accumulates-in-aedes-aegypti-salivary-glands
#5
Vincent Raquin, Louis Lambrechts
Dengue virus (DENV) is an RNA virus transmitted among humans by mosquito vectors, mainly Aedes aegypti. DENV transmission requires viral dissemination from the mosquito midgut to the salivary glands. During this process the virus undergoes several population bottlenecks, which are stochastic reductions in population size that restrict intra-host viral genetic diversity and limit the efficiency of natural selection. Despite the implications for virus transmission and evolution, DENV replication in salivary glands has not been directly demonstrated...
April 18, 2017: Virology
https://www.readbyqxmd.com/read/28431238/reducing-recurrence-of-c-difficile-infection
#6
Michael G Dieterle, Vincent B Young
Clostridium difficile infection (CDI) is facilitated by alteration of the microbiome following antibiotic administration. Antimicrobial therapy directed against the pathogen can treat CDI. Unfortunately, ∼20% of successfully treated patients will suffer recurrence. Bezlotoxumab, a human monoclonal antibody, binds to C. difficile toxin B (TcdB), reducing recurrence presumably by limiting epithelial damage and facilitating microbiome recovery.
April 20, 2017: Cell
https://www.readbyqxmd.com/read/28431099/effect-of-cold-water-induced-stress-on-immune-response-pathology-and-fertility-in-mice-during-chlamydia-muridarum-genital-infection
#7
Tesfaye Belay, Anthony Woart, Vincent Graffeo
Genital infection by Chlamydia trachomatis (CT) is the most common bacterial sexually-transmitted disease worldwide. It causes serious reproductive health complications, including pelvic inflammatory disease and infertility. Stress is implicated as a risk factor for various infections; however, its effect on chlamydia genital infection is unknown. We previously showed that repeated exposure of mice to cold water results in increased severity of chlamydia genital infection. In the present study, cold water-induced stress resulted in: i) elevated levels of NE and EP in the spleen and genital tract of stressed mice; ii) elevated IL-1β, TNF-α, IL-6 and NO production in macrophage-rich peritoneal cells of mice; iii) supplement of NE in vitro exerts an immunosuppressive effect on splenic T cell production of cytokines; iv) decreased C...
April 18, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28430963/integrated-care-for-older-populations-and-its-implementation-facilitators-and-barriers-a-rapid-scoping-review
#8
Diane E Threapleton, Roger Y Chung, Samuel Y S Wong, Eliza Wong, Patsy Chau, Jean Woo, Vincent C H Chung, Eng-Kiong Yeoh
Purpose: Inform health system improvements by summarizing components of integrated care in older populations. Identify key implementation barriers and facilitators. Data sources: A scoping review was undertaken for evidence from MEDLINE, the Cochrane Library, organizational websites and internet searches. Eligible publications included reviews, reports, individual studies and policy documents published from 2005 to February 2017. Study selection: Initial eligible documents were reviews or reports concerning integrated care approaches in older/frail populations...
April 20, 2017: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/28430892/anti-arrhythmic-potential-of-the-late-sodium-current-inhibitor-gs-458967-in-murine-scn5a-1798insd-and-human-scn5a-1795insd-ipsc-derived-cardiomyocytes
#9
Vincent Portero, Simona Casini, Maaike Hoekstra, Arie O Verkerk, Isabella Mengarelli, Luiz Belardinelli, Sridharan Rajamani, Arthur A M Wilde, Connie R Bezzina, Marieke W Veldkamp, Carol Ann Remme
AIM: Selective inhibition of cardiac late sodium current (INaL) is an emerging target in the treatment of ventricular arrhythmias. We investigated the electrophysiological effects of GS-458967 (GS967), a potent, selective inhibitor of INaL, in an overlap syndrome model of both gain and loss of sodium channel function, comprising cardiomyocytes derived from both human SCN5A-1795insD+/- induced pluripotent stem cells (hiPSC-CMs) and mice carrying the homologous mutation Scn5a-1798insD+/-...
April 18, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28430479/interfacing-superconducting-qubits-and-single-optical-photons-using-molecules-in-waveguides
#10
Sumanta Das, Vincent E Elfving, Sanli Faez, Anders S Sørensen
We propose an efficient light-matter interface at optical frequencies between a single photon and a superconducting qubit. The desired interface is based on a hybrid architecture composed of an organic molecule embedded inside an optical waveguide and electrically coupled to a superconducting qubit placed near the outside surface of the waveguide. We show that high fidelity, photon-mediated, entanglement between distant superconducting qubits can be achieved with incident pulses at the single photon level. Such a low light level is highly desirable for achieving a coherent optical interface with superconducting qubit, since it minimizes decoherence arising from the absorption of light...
April 7, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28430290/frequency-and-topography-of-small-cerebrovascular-lesions-in-vascular-and-in-mixed-dementia-a-post-mortem-7-tesla-magnetic-resonance-imaging-study-with-neuropathological-correlates
#11
Jacques De Reuck, Florent Auger, Nicolas Durieux, Vincent Deramecourt, Claude-Alain Maurage, Charlotte Cordonnier, Florence Pasquier, Didier Leys, Regis Bordet
<i><b>Introduction</b>: Mixed dementia (MixD) refers to a combination of definite Alzheimer's disease (AD) and vascular encephalopathy. The existence of a "pure" type of vascular dementia (VaD) is controversial. There is a need to find magnetic resonance imaging (MRI) characteristics allowing the distinction between VaD and MixD. The present post-mortem 7.0-tesla MRI compares the frequency or severity and the topography of the small cerebrovascular lesions in brains of patients with VaD and with MixD...
2017: Folia Neuropathologica
https://www.readbyqxmd.com/read/28429504/induced-pluripotent-stem-cells-reduce-neutrophil-chemotaxis-via-activating-grk2-in-endotoxin-induced-acute-lung-injury
#12
Vincent Yi-Fong Su, Shih-Hwa Chiou, Chi-Shiuan Lin, Wei-Chih Chen, Wen-Kuang Yu, Yen-Wen Chen, Cheng-Yu Chen, Kuang-Yao Yang
BACKGROUND AND OBJECTIVE: We investigated the effect of induced pluripotent stem cells (iPSCs) in moderating neutrophil chemotaxis in endotoxin-induced acute lung injury (ALI). METHODS: Male C57BL/6 mice at 8-12 weeks of age were studied. Murine iPSCs were delivered through the tail veins of mice 4 h after intratracheal instillation of endotoxin. Lung histopathological findings, neutrophil counts in peripheral blood and bronchoalveolar lavage fluid (BALF), bone marrow (BM) cell distribution, expression of chemokine receptors and regulatory signalling pathways were analysed after 24 h...
April 21, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28429498/separate-neural-systems-for-behavioral-change-and-for-emotional-responses-to-failure-during-behavioral-inhibition
#13
Wanlu Deng, Edmund T Rolls, Xiaoxi Ji, Trevor W Robbins, Tobias Banaschewski, Arun L W Bokde, Uli Bromberg, Christian Buechel, Sylvane Desrivières, Patricia Conrod, Herta Flor, Vincent Frouin, Juergen Gallinat, Hugh Garavan, Penny Gowland, Andreas Heinz, Bernd Ittermann, Jean-Luc Martinot, Herve Lemaitre, Frauke Nees, Dimitri Papadopoulos Orfanos, Luise Poustka, Michael N Smolka, Henrik Walter, Robert Whelan, Gunter Schumann, Jianfeng Feng
To analyze the involvement of different brain regions in behavioral inhibition and impulsiveness, differences in activation were investigated in fMRI data from a response inhibition task, the stop-signal task, in 1709 participants. First, areas activated more in stop-success (SS) than stop-failure (SF) included the lateral orbitofrontal cortex (OFC) extending into the inferior frontal gyrus (ventrolateral prefrontal cortex, BA 47/12), and the dorsolateral prefrontal cortex (DLPFC). Second, the anterior cingulate and anterior insula (AI) were activated more on failure trials, specifically in SF versus SS...
April 21, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28429482/the-periodontal-restorative-interface-esthetic-considerations
#14
REVIEW
Vincent Bennani, Hadeel Ibrahim, Latfiya Al-Harthi, Karl M Lyons
Esthetic considerations are a significant contributing factor in the management of prosthodontic cases and an interdisciplinary approach is often necessary to achieve an optimal result. The visible soft-tissue architecture plays a key role in developing an esthetic smile. Furthermore, an understanding of the relationship between the restorative margin and the gingiva is important for long-term stability of the result. The gingival architecture and gingival health are important for ensuring optimal esthetics following prosthodontic work and close attention to both soft and hard tissues around the teeth, before, during and after restorative procedures, will greatly improve the likelihood of a successful outcome...
June 2017: Periodontology 2000
https://www.readbyqxmd.com/read/28429455/base-controlled-completely-selective-linear-or-branched-rhodium-i-catalyzed-c-h-ortho-alkylation-of-azines-without-preactivation
#15
Gaël Tran, Kevin D Hesp, Vincent Mascitti, Jonathan A Ellman
A [Rh(I) ]/bisphosphine/base catalytic system for the ortho-selective C-H alkylation of azines by acrylates and acrylamides is reported. This catalytic system features an unprecedented complete linear or branched selectivity that is solely dependent on the catalytic base that is used. Complete branched selectivity is even achieved for ethyl methacrylate, which enables the introduction of a quaternary carbon center. Excellent functional group compatibility is demonstrated for both linear and branched alkylations...
April 21, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28429403/accuracy-of-computed-tomographic-arthrography-for-assessment-of-articular-cartilage-defects-in-the-ovine-stifle
#16
Fanny Hontoir, Peter Clegg, Vincent Simon, Nathalie Kirschvink, Jean-Francois Nisolle, Jean-Michel Vandeweerd
Articular cartilage defects are one of the features of osteoarthritis in animals and humans. Early detection of cartilage defects is a challenge in clinical veterinary practice and also in translational research studies. An accurate, diagnostic imaging method would be desirable for detecting and following up lesions in specific anatomical regions of the articular surface. The current prospective experimental study aimed to describe the accuracy of computed tomographic arthrography (CTA) for detecting cartilage defects in a common animal model used for osteoarthritis research, the ovine stifle (knee, femoropatellar/femorotibial) joint...
April 20, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28429244/fluctuating-asymmetry-of-meristic-traits-an-isofemale-line-analysis-in-an-invasive-drosophilid-zaprionus-indianus
#17
Lilian Madi-Ravazzi, Luis Fernando Segala, Vincent Debat, Jean R David
Metric (e.g., body size) and meristic (e.g., bristle number) traits are of general use in quantitative genetic studies, and the phenotypic variance is subdivided into a genetic and a non-genetic environmental component. The non-genetic variance may have two origins: a common garden effect between individuals and a developmental instability within the same individual. Developmental instability may be studied by considering the fluctuating asymmetry (FA) between the two sides of the body. The isofemale line technique is a convenient method for investigating the architecture of natural populations but has been rarely implemented for investigating FA...
April 20, 2017: Genetica
https://www.readbyqxmd.com/read/28428886/vaccination-with-inhibin-%C3%AE-provides-effective-immunotherapy-against-testicular-stromal-cell-tumors
#18
Robert Aguilar, Justin M Johnson, Patrick Barrett, Vincent K Tuohy
BACKGROUND: Testicular cancer is the most common male neoplasm occurring in men between the ages of 20 and 34. Although germ-line testicular tumors respond favorably to current standard of care, testicular stromal cell (TSC) tumors derived from Sertoli cells or Leydig cells often fail to respond to chemotherapy or radiation therapy and have a 5-year overall survival significantly lower than the more common and more treatable germ line testicular tumors. METHODS: To improve outcomes for TSC cancer, we have developed a therapeutic vaccine targeting inhibin-α, a protein produced by normal Sertoli and Leydig cells of the testes and expressed in the majority of TSC tumors...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28428342/lysibodies-are-igg-fc-fusions-with-lysin-binding-domains-targeting-staphylococcus-aureus-wall-carbohydrates-for-effective-phagocytosis
#19
Assaf Raz, Anna Serrano, Christine Lawson, Maneesha Thaker, Tricia Alston, Stylianos Bournazos, Jeffrey V Ravetch, Vincent A Fischetti
The cell wall of Gram-positive bacteria contains abundant surface-exposed carbohydrate molecules that are highly conserved within and often across species. The potential therapeutic usefulness of high-affinity antibodies to cell wall carbohydrates is unquestioned, however obtaining such antibodies is challenging due to the poor overall immunogenicity of these bacterial targets. Autolysins and phage lysins are peptidoglycan hydrolases, enzymes that have evolved over a billion years to degrade bacterial cell wall...
April 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28428131/human-dermal-fibroblast-sub-populations-display-distinct-gene-signatures-related-to-cell-behaviors-and-matrisome
#20
Pauline Nauroy, Vincent Barruche, Laetitia Marchand, Steven Nindorera-Badara, Sylvie Bordes, Brigitte Closs, Florence Ruggiero
No abstract text is available yet for this article.
April 17, 2017: Journal of Investigative Dermatology
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