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https://www.readbyqxmd.com/read/28648414/prognostic-role-of-ki-67-score-in-localized-prostate-cancer-a-systematic-review-and-meta-analysis
#1
REVIEW
Alejandro Berlin, Julio F Castro-Mesta, Laura Rodriguez-Romo, David Hernandez-Barajas, Juan F González-Guerrero, Iván A Rodríguez-Fernández, Galileo González-Conchas, Adrian Verdines-Perez, Francisco E Vera-Badillo
BACKGROUND: Ki-67 for quantifying tumor proliferation is widely used. In localized prostate cancer (PCa), despite a suggested predictive role of Ki-67 for outcomes after therapies, it has not been incorporated into clinical practice. Herein, we conduct a systematic review and meta-analysis of the literature reporting the association of Ki-67 and disease outcomes in PCa treated radically. METHODS: Medline and EMBASE databases were searched without date or language restrictions, using "KI67" and "prostate cancer" MeSH terms...
June 22, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28643340/trans-endoscopic-diode-laser-fenestration-of-equine-conchae-via-contralateral-nostril-approach
#2
Filip Kološ, Štěpán Bodeček, Zdeněk Žert
OBJECTIVE: To describe and report preliminary outcomes of a contralateral trans-nasal endoscopic laser fenestration of the conchae for endoscopic examination and treatment of paranasal sinuses in horses. STUDY DESIGN: Cadaveric experimental and prospective clinical study. ANIMALS: Normal cadaveric equine heads (n = 7) and equine patients (horses n = 7, donkey n = 1) diagnosed with sinusitis. METHODS: Ex vivo: a video-endoscope containing a diode laser fiber in the working canal was passed through the nostril and retroflexed in the nasopharynx toward the contralateral conchae...
June 23, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28643009/patient-satisfaction-and-its-influencing-factors-of-microtia-reconstruction-using-autologous-cartilage
#3
Chunxiao Cui, Shim Yoon Hoon, Ruhong Zhang, Qun Zhang, Zhicheng Xu, Feng Xu, Datao Li, Yiyuan Li
BACKGROUND: This study aimed to investigate patient perceptions of and satisfaction with surgical outcomes of microtia reconstruction using autologous cartilage. It also analyzes associations between patient background characteristics and their evaluation. METHODS: Lobule-type microtia patients who had received first-stage surgery were interviewed using a questionnaire, which included assessment of nine auricle substructures, superior and inferior parts and overall impression...
June 22, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28635576/-a-man-with-an-anomaly-in-his-ear
#4
T E M van Doeveren, M Bol, W M C Klop
A 65-year-old man presented with an anomaly in his left ear. He had no complaints, but was ashamed of the lesion. On physical examination a pigmented, pedunculated, polypoid tumour of approximately 2 x 2.5 cm was seen, which filled the whole cavum conchae. After excision, histopathological examination showed a verruca seborrhoica.
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28631186/association-between-epidermal-growth-factor-receptor-amplification-and-adp-ribosylation-factor-1-methylation-in-human-glioblastoma
#5
Concha López-Ginés, Lara Navarro, Lisandra Muñoz-Hidalgo, Enrique Buso, José Manuel Morales, Rosario Gil-Benso, Mariela Gregori-Romero, Javier Megías, Pedro Roldán, Remedios Segura-Sabater, José Manuel Almerich-Silla, Daniel Monleón, Miguel Cerdá-Nicolás
PURPOSE: Glioblastoma (GB) is the most frequent and most malignant primary brain tumor in adults. Previously, it has been found that both genetic and epigenetic factors may play critical roles in its etiology and prognosis. In addition, it has been found that the epidermal growth factor receptor gene (EGFR) is frequently over-expressed and amplified in primary GBs. Here, we assessed the promoter methylation status of 10 genes relevant to GB and explored associations between these findings and the EGFR gene amplification status...
June 19, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28631167/copper-and-ectopic-expression-of-the-arabidopsis-transport-protein-copt1-alter-iron-homeostasis-in-rice-oryza-sativa-l
#6
Amparo Andrés-Bordería, Fernando Andrés, Antoni Garcia-Molina, Ana Perea-García, Concha Domingo, Sergi Puig, Lola Peñarrubia
Copper deficiency and excess differentially affect iron homeostasis in rice and overexpression of the Arabidopsis high-affinity copper transporter COPT1 slightly increases endogenous iron concentration in rice grains. Higher plants have developed sophisticated mechanisms to efficiently acquire and use micronutrients such as copper and iron. However, the molecular mechanisms underlying the interaction between both metals remain poorly understood. In the present work, we study the effects produced on iron homeostasis by a wide range of copper concentrations in the growth media and by altered copper transport in Oryza sativa plants...
June 19, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28630454/treatment-with-a-non-toxic-self-replicating-anti-prion-delays-or-prevents-prion-disease-in-vivo
#7
R Diaz-Espinoza, R Morales, L Concha-Marambio, I Moreno-Gonzalez, F Moda, C Soto
Transmissible spongiform encephalopathies (TSEs) are fatal neurological disorders caused by prions, which are composed of a misfolded protein (PrP(Sc)) that self-propagates in the brain of infected individuals by converting the normal prion protein (PrP(C)) into the pathological isoform. Here, we report a novel experimental strategy for preventing prion disease based on producing a self-replicating, but innocuous PrP(Sc)-like form, termed anti-prion, which can compete with the replication of pathogenic prions...
June 20, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28622282/towards-a-neurobiological-understanding-of-alexithymia
#8
REVIEW
Nicolás Meza-Concha, Marcelo Arancibia, Felicia Salas, Rosa Behar, Germán Salas, Hernán Silva, Rocío Escobar
Although the specialized literature on the etiology of alexithymia is controversial, neurobiological research has shown relevant advances. The aim of this review is to analyze the available evidence regarding the neurophysiological bases of alexithymia. A comprehensive review of available articles from Medline/PubMed, EBSCO and SciELO was conducted. Previously, alexithymia was linked to a reduced interhemispheric brain connection. From a childhood traumatic perspective, the right prefrontal cortex and the default mode network would experience alterations, first hypermetabolic (dopaminergic and glutamatergic dysregulation) and then hypometabolic-dissociative (serotonergic and opioid dysregulation), resulting in a distorted interoceptive and emotional awareness...
May 29, 2017: Medwave
https://www.readbyqxmd.com/read/28619419/usefulness-of-scintigraphy-with-labelled-leucocytes-and-spect-ct-in-vascular-graft-infection
#9
V Marín-Oyaga, C Gutierrez-Villamil, D García-Concha, S Arevalo-Leal
Vascular graft infections are a rare complication in this type of procedure. However, when they do occur, they usually have high morbidity, and even a high mortality. Proper identification and location is crucial for the appropriate and early management, whether medical or surgical, thus knowledge of the right tools is paramount. Nuclear medicine studies play an important role in this regard, either by using labelled white blood cells scintigraphy or (18)F-FDG. The choice, among other factors, will depend on the experience with both techniques by the different groups, their knowledge of them, as well as their availability...
June 12, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28611673/reversing-egfr-mediated-immunoescape-by-targeted-monoclonal-antibody-therapy
#10
REVIEW
Fernando Concha-Benavente, Robert L Ferris
Uncontrolled growth is a signature of carcinogenesis, in part mediated by overexpression or overstimulation of growth factor receptors. The epidermal growth factor receptor (EGFR) mediates activation of multiple oncogenic signaling pathways and escape from recognition by the host immune system. We discuss how EGFR signaling downregulates tumor antigen presentation, upregulates suppressive checkpoint receptor ligand programmed death ligand (PD-L1), induces secretion of inhibitory molecules such as transforming growth factor beta (TGFβ) and reprograms the metabolic pathways in cancer cells to upregulate aerobic glycolysis and lactate secretion that ultimately lead to impaired cellular immunity mediated by natural killer (NK) cell and cytotoxic T lymphocytes (CTL)...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28610670/lung-ultrasound-as-a-diagnostic-tool-for-radiographically-confirmed-pneumonia-in-low-resource-settings
#11
Laura E Ellington, Robert H Gilman, Miguel A Chavez, Farhan Pervaiz, Julio Marin-Concha, Patricia Compen-Chang, Stefan Riedel, Shalim J Rodriguez, Charlotte Gaydos, Justin Hardick, James M Tielsch, Mark Steinhoff, Jane Benson, Evelyn A May, Dante Figueroa-Quintanilla, William Checkley
BACKGROUND: Pneumonia is a leading cause of morbidity and mortality in children worldwide; however, its diagnosis can be challenging, especially in settings where skilled clinicians or standard imaging are unavailable. We sought to determine the diagnostic accuracy of lung ultrasound when compared to radiographically-confirmed clinical pediatric pneumonia. METHODS: Between January 2012 and September 2013, we consecutively enrolled children aged 2-59 months with primary respiratory complaints at the outpatient clinics, emergency department, and inpatient wards of the Instituto Nacional de Salud del Niño in Lima, Peru...
July 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28610447/significance-of-heat-moisture-treatment-conditions-on-the-pasting-and-gelling-behaviour-of-various-starch-rich-cereal-and-pseudocereal-flours
#12
Concha Collar
The impact of heat-moisture treatment processing conditions (15%, 25%, and 35% moisture content; 1, 3, and 5 h heating time at 120 ℃) on the viscosity pasting and gelling profiles of different grain flours matrices (barley, buckwheat, sorghum, high β-glucan barley, and wheat) was investigated by applying successive cooking and cooling cycles to rapid visco analyser canisters with highly hydrated samples (3.5:25, w:w). At a milder heat-moisture treatment conditions (15% moisture content, 1 h heating time), except for sorghum, heat-moisture treatment flours reached much higher viscosity values during earlier pasting and subsequent gelling than the corresponding native counterparts...
January 1, 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/28608393/the-impact-of-the-use-of-intraoperative-radiotherapy-on-costs-travel-time-and-distance-for-women-with-breast-cancer-in-the-mexico-city-metropolitan-area
#13
Juan Enrique Bargallo-Rocha, Enrique Soto-Perez-de-Celis, Francisco Javier Picó-Guzmán, Carlos Eduardo Quintero-Rodríguez, David Almog, Gabriel Santiago-Concha, Christian Haydee Flores-Balcazar, Jaime Corona, Rafael Vazquez-Romo, Cynthia Villarreal-Garza, Alejandro Mohar
BACKGROUND AND OBJECTIVES: The low availability and poor access to external beam radiotherapy (EBRT) in developing countries makes it hard for women with breast cancer to receive breast conservation. We studied the effect of providing intraoperative radiotherapy (IORT) on the travel time, distance, and costs of in the Mexico City Metropolitan Area (MCMA). METHODS: Sixty-nine patients treated between January 2013 and September 2014 were analyzed. Travel distance and transit time was calculated using Google Maps...
June 12, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28595820/quality-management-a-directive-approach-to-patient-safety
#14
Diego Ayuso-Murillo, Begoña de Andrés-Gimeno, Concha Noriega-Matanza, Rafael Jesús López-Suárez, Ivan Herrera-Peco
Nowadays the implementation of effective quality management systems and external evaluation in healthcare is a necessity to ensure not only transparency in activities related to health but also access to health and patient safety. The key to correctly implementing a quality management system is support from the managers of health facilities, since it is managers who design and communicate to health professionals the strategies of action involved in quality management systems. This article focuses on nursing managers' approach to quality management through the implementation of cycles of continuous improvement, participation of improvement groups, monitoring systems and external evaluation quality models (EFQM, ISO)...
June 5, 2017: Enfermería Clínica
https://www.readbyqxmd.com/read/28580937/extra-embryonic-tissue-spreading-directs-early-embryo-morphogenesis-in-killifish
#15
Germán Reig, Mauricio Cerda, Néstor Sepúlveda, Daniela Flores, Victor Castañeda, Masazumi Tada, Steffen Härtel, Miguel L Concha
The spreading of mesenchymal-like cell layers is critical for embryo morphogenesis and tissue repair, yet we know little of this process in vivo. Here we take advantage of unique developmental features of the non-conventional annual killifish embryo to study the principles underlying tissue spreading in a simple cellular environment, devoid of patterning signals and major morphogenetic cell movements. Using in vivo experimentation and physical modelling we reveal that the extra-embryonic epithelial enveloping cell layer, thought mainly to provide protection to the embryo, directs cell migration and the spreading of embryonic tissue during early development...
June 5, 2017: Nature Communications
https://www.readbyqxmd.com/read/28571175/unilateral-absence-of-ethmoid-sinus-and-nasal-turbinates-a-rare-case-report
#16
Vinod Felix, Narendrakumar Veerasigamani
A variety of anatomical variation of paranasal sinus and nasal turbinates exist, as its development is a complex and long standing process. Computerized Tomography (CT) of the paranasal sinuses is a very valuable tool in diagnosing these variations. Preoperatively defining the anatomical variations of the intranasal structures is essential in performing the safe functional endoscopic sinus surgery and to avoid unnecessary complications. Several degrees and combinations of aplasias and hypoplasias have been reported...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28556800/disease-prevention-an-opportunity-to-expand-edible-plant-based-vaccines
#17
REVIEW
Christopher Concha, Raúl Cañas, Johan Macuer, María José Torres, Andrés A Herrada, Fabiola Jamett, Cristian Ibáñez
The lethality of infectious diseases has decreased due to the implementation of crucial sanitary procedures such as vaccination. However, the resurgence of pathogenic diseases in different parts of the world has revealed the importance of identifying novel, rapid, and concrete solutions for control and prevention. Edible vaccines pose an interesting alternative that could overcome some of the constraints of traditional vaccines. The term "edible vaccine" refers to the use of edible parts of a plant that has been genetically modified to produce specific components of a particular pathogen to generate protection against a disease...
May 30, 2017: Vaccines
https://www.readbyqxmd.com/read/28545517/evaluation-of-two-strategies-for-the-interpretation-of-tumour-markers-in-pleural-effusions
#18
Jaume Trapé, Francesc Sant, Josefina Franquesa, Jesús Montesinos, Anna Arnau, Maria Sala, Oscar Bernadich, Esperanza Martín, Damià Perich, Concha Pérez, Joan Lopez, Sandra Ros, Enrique Esteve, Rafael Pérez, Jordi Aligué, Gabriel Gurt, Silvia Catot, Montserrat Domenech, Joan Bosch, Josep Miquel Badal, Mariona Bonet, Rafael Molina, Josep Ordeig
BACKGROUND: Pleural effusions present a diagnostic challenge. Approximately 20% are associated with cancer and some 50% require invasive procedures to perform diagnosis. Determination of tumour markers may help to identify patients with malignant effusions. Two strategies are used to obtain high specificity in the differential diagnosis of malignant pleural effusions: a) high cut-off, and b) fluid/serum (F/S) ratio and low cut-off. The aim of this study is to compare these two strategies and to establish whether the identification of possible false positives using benign biomarkers - ADA, CRP and % of polymorphonuclear cells - improves diagnostic accuracy...
May 25, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28538813/mechanisms-of-endothelial-protection-by-natural-bioactive-compounds-from-fruit-and-vegetables
#19
Bernardita Monsalve, Anibal Concha-Meyer, Iván Palomo, Eduardo Fuentes
The endothelium is fundamental for the regulation of vascular tone and structure. Under disease conditions, including the presence of cardiovascular disease risk factors, the endothelium loses its protective role and becomes a proatherosclerotic structure. In this article we searched for strategies from PUBMED and Science Direct databases using the following key words: endothelium, natural bioactive compounds, polyphenols and cardiovascular diseases. The search was restricted to english language papers. Studies have identified the contribution of diet to the risk of developing cardiovascular diseases...
May 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28531246/heat-not-burn-tobacco-cigarettes-smoke-by-any-other-name
#20
Reto Auer, Nicolas Concha-Lozano, Isabelle Jacot-Sadowski, Jacques Cornuz, Aurélie Berthet
No abstract text is available yet for this article.
May 22, 2017: JAMA Internal Medicine
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