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https://www.readbyqxmd.com/read/28645311/zika-virus-tropism-and-interactions-in-myelinating-neural-cell-cultures-cns-cells-and-myelin-are-preferentially-affected
#1
Stephanie L Cumberworth, Jennifer A Barrie, Madeleine E Cunningham, Daniely Paulino Gomes de Figueiredo, Verena Schultz, Adrian J Wilder-Smith, Benjamin Brennan, Lindomar J Pena, Rafael Freitas de Oliveira França, Christopher Linington, Susan C Barnett, Hugh J Willison, Alain Kohl, Julia M Edgar
The recent global outbreak of Zika virus (ZIKV) infection has been linked to severe neurological disorders affecting the peripheral and central nervous systems (PNS and CNS, respectively). The pathobiology underlying these diverse clinical phenotypes are the subject of intense research; however, even the principal neural cell types vulnerable to productive Zika infection remain poorly characterised. Here we used CNS and PNS myelinating cultures from wild type and Ifnar1 knockout mice to examine neuronal and glial tropism and short-term consequences of direct infection with a Brazilian variant of ZIKV...
June 23, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28640335/construction-and-content-validation-of-checklist-for-patient-safety-in-emergency-care
#2
Marly Ryoko Amaya, Danieli Parreira da Silva Stalisz da Paixão, Leila Maria Mansano Sarquis, Elaine Drehmer de Almeida Cruz
Objective: To construct and validate a checklist for patient safety in emergency care. Method: This is methodological research conducted in Curitiba, in 2015, with construction and validation stages. The checklist was based on the guidelines of the Brazilian patient safety programme and validated online using the Delphi method, with a questionnaire, and with the participation of 23 Brazilian specialists in the first round and 20 in the second round. The data were analysed using the Content Validity Index (CVI), Cronbach's α, and Fisher's Exact Test...
June 5, 2017: Revista Gaúcha de Enfermagem
https://www.readbyqxmd.com/read/28636672/metabolomic-profile-and-nucleoside-composition-of-cordyceps-nidus-sp-nov-cordycipitaceae-a-new-source-of-active-compounds
#3
Juan Chiriví, Giovanna Danies, Rocio Sierra, Nicolas Schauer, Sandra Trenkamp, Silvia Restrepo, Tatiana Sanjuan
Cordyceps sensu lato is a genus of arthropod-pathogenic fungi, which have been used traditionally as medicinal in Asia. Within the genus, Ophiocordyceps sinensis is the most coveted and expensive species in China. Nevertheless, harvesting wild specimens has become a challenge given that natural populations of the fungus are decreasing and because large-scale culture of it has not yet been achieved. The worldwide demand for products derived from cultivable fungal species with medicinal properties has increased recently...
2017: PloS One
https://www.readbyqxmd.com/read/28633767/temporal-variation-in-ankle-fractures-and-orthopedic-resident-program-planning-in-an-urban-level-1-trauma-center
#4
Aaron Wynkoop, Osy Ndubaku, Norman Walter, Theresa Atkinson
Previous studies have described the mechanism of ankle fractures, their seasonal variation, and fracture patterns but never in conjunction. In addition, the cohorts previously studied were either not from trauma centers or were often dominated by low-energy mechanisms. The present study aimed to describe the epidemiology of ankle fractures presenting to an urban level 1 trauma center. The records from an urban level 1 trauma center located in the Midwestern United States were retrospectively reviewed, and the injury mechanism and energy, time of injury, day of week, month, and patient characteristics (age, gender, comorbidities, smoking status) were collected...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28629504/sulfodiicoccus-acidiphilus-gen-nov-sp-nov-a-sulfur-inhibited-thermoacidophilic-archaeon-belonging-to-the-order-sulfolobales-isolated-from-a-terrestrial-acidic-hot-spring
#5
Hiroyuki D Sakai, Norio Kurosawa
A novel thermoacidophilic archaeon, strain HS-1T, was isolated from the Hakone Ohwaku-dani hot spring in Japan. Cells of strain HS-1T in exponential phase were cocci to irregular cocci with a diameter of 0.8-1.5 µm. The strain grew within a temperature range of 50-70 °C (optimal: 65-70 °C), a pH range of pH 1.4-5.5 (optimal: pH 3.0-3.5) and a NaCl concentration range of 0-2.5 % (w/v). The novel strain grew in aerobic conditions but did not grow anaerobically. Moreover, this strain utilized various complex substrates (beef extract, casamino acids, peptone, tryptone and yeast extract) and sugars (arabinose, xylose, galactose, glucose, maltose, sucrose, raffinose and lactose) as sole carbon sources...
June 20, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28626946/do-changes-in-gene-expression-contribute-to-sexual-isolation-and-reinforcement-in-the-house-mouse
#6
Etienne Loire, Sergio Tusso, Pierre Caminade, Dany Severac, Pierre Boursot, Guila Ganem, Carole M Smadja
Expression divergence, rather than sequence divergence, has been shown to be important in speciation, particularly in the early stages of divergence of traits involved in reproductive isolation. In the two European subspecies of house mice, Mus musculus musculus and M. m. domesticus, earlier studies have demonstrated olfactory-based assortative mate preference in populations close to their hybrid zone. It has been suggested that this behaviour evolved following the recent secondary contact between the two taxa (~3,000 years ago) in response to selection against hybridisation...
June 19, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28625511/lung-fluid-clearance-in-chronic-heart-failure-patients
#7
Dani-Louise Dixon, Carmine G De Pasquale, Mark D Lawrence, Elena Cavallaro, Vito Rubino, Andrew D Bersten
Chronic elevation of pulmonary microvascular pressure (Pmv) consistently leads to alveolocapillary barrier thickening and reduction in the filtration coefficient. In animal models of chronic heart failure (CHF) the lung remains dry despite hydrostatic forces. As fluid flux is bi-directional, it has been postulated that an increase in alveolar fluid clearance may facilitate the dry lung when Pmv is chronically elevated. In this study we aimed to examine alveolar fluid clearance in ambulatory patients with CHF secondary to left ventricular (LV) systolic dysfunction compared against non-CHF controls...
May 26, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28625158/a-minimally-invasive-method-for-sampling-human-petrous-bones-from-the-cranial-base-for-ancient-dna-analysis
#8
Kendra A Sirak, Daniel M Fernandes, Olivia Cheronet, Mario Novak, Beatriz Gamarra, Tímea Balassa, Zsolt Bernert, Andrea Cséki, János Dani, József Zsolt Gallina, Gábor Kocsis-Buruzs, Ivett Kővári, Orsolya László, Ildikó Pap, Róbert Patay, Zsolt Petkes, Gergely Szenthe, Tamás Szeniczey, Tamás Hajdu, Ron Pinhasi
Ancient DNA (aDNA) research involves invasive and destructive sampling procedures that are often incompatible with anthropological, anatomical, and bioarcheological analyses requiring intact skeletal remains. The osseous labyrinth inside the petrous bone has been shown to yield higher amounts of endogenous DNA than any other skeletal element; however, accessing this labyrinth in cases of a complete or reconstructed skull involves causing major structural damage to the cranial vault or base. Here, we describe a novel cranial base drilling method (CBDM) for accessing the osseous labyrinth from the cranial base that prevents damaging the surrounding cranial features, making it highly complementary to morphological analyses...
June 1, 2017: BioTechniques
https://www.readbyqxmd.com/read/28620961/normal-atxn2-alleles-influences-on-the-age-at-onset-in-spinocerebellar-ataxia-type-2
#9
REVIEW
Luis E Almaguer-Mederos, Raúl Aguilera-Rodríguez, Dany Cuello-Almarales, Dennis Almaguer-Gotay, Yanetza González-Zaldívar, Yaimé Vázquez-Mojena, Nieves Santos-Falcón, Gilberto Sánchez-Cruz, Luis Velázquez-Pérez
No abstract text is available yet for this article.
June 16, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28620604/medical-students-knowledge-of-fertility-awareness-based-methods-of-family-planning
#10
Peter G Danis, Sally A Kurz, Laura M Covert
OBJECTIVE: Traditional medical school curricula have not addressed fertility awareness-based methods (FABMs) of family planning. The objective of this study was to assess (1) 3-year medical students' knowledge of FABMs of family planning, (2) their confidence in utilizing that knowledge in patient care, and (3) to implement focused education on FABMs to improve knowledge and confidence. METHODS: Third-year medical students at one institution in the United States were given a 10-question assessment at the beginning of their OB-GYN rotation...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28608227/bimodality-of-stable-and-plastic-traits-in-plants
#11
Josef Fisher, Elad Bensal, Dani Zamir
We discovered an unexpected mode of bimodal distribution of stable and plastic traits, which was consistent for homologous traits of 32 varieties of seven species both in well-irrigated fields and dry conditions. We challenged archived genetic mapping data for 36 fruit, seed, flower and yield traits in tomato and found an unexpected bimodal distribution in one measure of trait variability, the mean coefficient of variation, with some traits being consistently more variable than others. To determine the degree of conservation of this distribution among higher plants, we compared 18 homologous phenotypes, including yield and seed production, across different crop species grown in a common 'crop garden' experiment...
June 12, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28606997/hpv-e7-induces-chemotherapy-mediated-tumor-suppression-by-ceramide-dependent-mitophagy
#12
Raquela J Thomas, Natalia Oleinik, Shanmugam Panneer Selvam, Silvia G Vaena, Mohammed Dany, Rose N Nganga, Ryan Depalma, Kyla D Baron, Jisun Kim, Zdzislaw M Szulc, Besim Ogretmen
Human papillomavirus (HPV) infection is linked to improved survival in response to chemo-radiotherapy for patients with oropharynx head and neck squamous cell carcinoma (HNSCC). However, mechanisms involved in increased HNSCC cell death by HPV signaling in response to therapy are largely unknown. Here, using molecular, pharmacologic and genetic tools, we show that HPV early protein 7 (E7) enhances ceramide-mediated lethal mitophagy in response to chemotherapy-induced cellular stress in HPV-positive HNSCC cells by selectively targeting retinoblastoma protein (RB)...
June 12, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28604327/effects-of-exogenous-human-insulin-dose-adjustment-on-body-mass-index-in-adult-patients-with-type-1-diabetes-mellitus-at-kalafong-hospital-pretoria-south-africa-2009-2014
#13
Tohlang Solomon A Sehloho, Danie G Van Zyl
BACKGROUND: To maintain fasting blood glucose levels within near to the normal range in type 1 diabetes mellitus (DM), frequent insulin dose adjustments may be required with short-, intermediate- and long-acting insulin formulations. Patients on human insulin generally experience weight gain over time, regardless of the level of glycaemic control achieved. OBJECTIVES: To determine the effects of human insulin, adjusted quarterly to achieve glycaemic control, on body mass index (BMI), and establish dose regimens that achieve optimal glycaemic control without increasing BMI in patients with type 1 DM at the Kalafong Diabetes Clinic in Pretoria, South Africa...
May 24, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28597837/-effectiveness-of-selective-alveolar-decortication-in-accelerating-orthodontic-treatment-a-systematic-review
#14
Victor Fau, Dany Diep, Gérard Bader, Damien Brézulier, Olivier Sorel
INTRODUCTION: The number of scientific publications on accelerating orthodontic treatment, and especially surgical alveolar corticotomies techniques, has grown exponentially over the years. The objective of this systematic literature review was to assess the effectiveness of these corticotomies basing on human studies. MATERIAL AND METHOD: The review was conducted from Medline and Web of Science Core Collection to identify prospective controlled clinical trials with duration of orthodontic treatment or the tooth movement rate for primary endpoint...
June 2017: L' Orthodontie Française
https://www.readbyqxmd.com/read/28592814/impairment-of-the-activin-a-autocrine-loop-by-lopinavir-reduces-self-renewal-of-distinct-human-adipose-progenitors
#15
Christophe Ravaud, Martin Paré, Stéphane Azoulay, Christian Dani, Annie Ladoux
Maintenance of the adipose tissue requires a proper balance between self-renewal and differentiation of adipose progenitors (AP). Any deregulation leads either to fat overexpansion and obesity or fat loss and consequent lipodystrophies. Depending on the fat pad location, APs and adipocytes are heterogeneous. However, information on the pharmacological sensitivity of distinct APs to drugs known to alter the function of adipose tissue, especially HIV protease inhibitors (PIs) is scant. Here we show that PIs decreased proliferation and clonal expansion of APs, modifying their self-renewal potential...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28592806/platelet-rich-plasma-respectively-reduces-and-promotes-adipogenic-and-myofibroblastic-differentiation-of-human-adipose-derived-stromal-cells-via-the-tgf%C3%AE-signalling-pathway
#16
Bérengère Chignon-Sicard, Magali Kouidhi, Xi Yao, Audrey Delerue-Audegond, Phi Villageois, Pascal Peraldi, Patricia Ferrari, Yves Rival, David Piwnica, Jérôme Aubert, Christian Dani
Autologous fat grafting is a gold standard therapy for soft tissue defects, but is hampered by unpredictable postoperative outcomes. Fat graft enrichment with adipose-derived stromal cell (ASCs) was recently reported to enhance graft survival. Platelet-rich plasma (PRP) has also emerged as a biologic scaffold that promotes fat graft viability. Combined ASC/PRP fat grafting enrichment is thus a promising new regenerative medicine approach. The effects of PRP on ASC proliferation are well documented, but the impact of PRP on ASC differentiation has yet to be investigated in depth to further elucidate the PRP clinical effects...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28589954/wnt10a-mutation-causes-ectodermal-dysplasia-by-impairing-progenitor-cell-proliferation-and-klf4-mediated-differentiation
#17
Mingang Xu, Jeremy Horrell, Melinda Snitow, Jiawei Cui, Heather Gochnauer, Camille M Syrett, Staci Kallish, John T Seykora, Fei Liu, Dany Gaillard, Jonathan P Katz, Klaus H Kaestner, Brooke Levin, Corinne Mansfield, Jennifer E Douglas, Beverly J Cowart, Michael Tordoff, Fang Liu, Xuming Zhu, Linda A Barlow, Adam I Rubin, John A McGrath, Edward E Morrisey, Emily Y Chu, Sarah E Millar
Human WNT10A mutations are associated with developmental tooth abnormalities and adolescent onset of a broad range of ectodermal defects. Here we show that β-catenin pathway activity and adult epithelial progenitor proliferation are reduced in the absence of WNT10A, and identify Wnt-active self-renewing stem cells in affected tissues including hair follicles, sebaceous glands, taste buds, nails and sweat ducts. Human and mouse WNT10A mutant palmoplantar and tongue epithelia also display specific differentiation defects that are mimicked by loss of the transcription factor KLF4...
June 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/28584777/dental-and-skeletal-age-estimations-in-lebanese-children-a-retrospective-cross-sectional-study
#18
Antoine Saadé, Pascal Baron, Ziad Noujeim, Dany Azar
AIMS AND OBJECTIVES: Assessing dental and bone ages is frequently required in a wide range of fields such as odontology, forensic science, as well as orthopedics. The aim of this study was to evaluate applicability of two methods of bone age assessment and two methods of dental age (DA) assessment for Lebanese children. MATERIALS AND METHODS: Skeletal age (SA) of 260 orthodontic patients (124 males, 136 females divided into four groups each) was consecutively assessed using Greulich and Pyle and Fishman's SMI methods...
May 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28580509/erratum-to-perfusion-index-and-left-ventricular-output-correlation-in-healthy-term-infants
#19
Iuri Corsini, Alessandra Cecchi, Caterina Coviello, Carlo Dani
No abstract text is available yet for this article.
June 5, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28577964/rp5063-a-novel-multimodal-serotonin-receptor-modulator-prevents-monocrotaline-induced-pulmonary-arterial-hypertension-in-rats
#20
Laxminarayan Bhat, Jon Hawkinson, Marc Cantillon, Dasharatha G Reddy, Seema R Bhat, Charles E Laurent, Annie Bouchard, Marzena Biernat, Dany Salvail
Pulmonary arterial hypertension (PAH), a condition characterized by pulmonary vasculature constriction and remodeling, involves dysregulation of the serotonin (5-HT) receptors 5-HT2A and 5-HT2B. A rat model of monocrotaline (MCT)-induced PAH was used to examine the potential beneficial effects of RP5063, a 5-HT receptor modulator. After a single 60mg/kg dose of MCT, rats were gavaged twice-daily (b.i.d.) with vehicle, RP5063 (1, 3, or 10mg/kg), or sildenafil (50mg/kg) for 28 days. RP5063 at a dose as low as 1mg/kg, b...
May 31, 2017: European Journal of Pharmacology
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