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https://www.readbyqxmd.com/read/29159793/curative-radiation-therapy-for-very-elderly-bladder-cancer-patients-with-localized-disease
#1
M Bonet, T Bonfill, M Nuñez, L De Verdonces, E Mur, E Gallardo, L Fernandez-Morales, A Aguilar, J Prats, M Arenas
PURPOSE: To report the outcomes of a cohort of very elderly muscle-invasive bladder cancer (MIBC) patients treated with contemporary 3D-conformal radiation therapy (3D-CRT) with or without concurrent chemotherapy, after transurethral resection of bladder tumor (TURBT). METHODS: From February 2010 to January 2014, a total of 41 patients older than 75 years, with T2-3 N0-1 high-grade MIBC, a Karnofsky index (KI) of at least 90% and/or a Barthel scale score of at least 95, were treated with TURBT followed by radiotherapy (RT) with or without chemotherapy, and were prospectively followed-up...
November 20, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/29159278/comparative-evaluation-of-two-porcine-ex-vivo-models-for-training-in-endoscopic-ultrasound-guided-drainage-of-pancreatic-fluid-collections
#2
Frederick Moryoussef, Sarah Leblanc, Alice Bertucat, Arthur Laquiere, Emmanuel Coron, Luigi Mangialavori, Jean-Christophe Duchmann, Yann Le Baleur, Frederic Prat
Introduction:  EUS-guided cystoenterostomy (EUCE), a technique used for the drainage of pancreatic pseudocysts and peri-enteric collections, requires specific skills for which dedicated models are needed. Based on a compact EASIE model (Erlangen Active Simulator for Interventional Endoscopy), we developed two ex vivo porcine models of retrogastric cysts and evaluated learning performance within the frame of a structured training program. Material and methods:  The first model was made of porcine colon (i...
October 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/29140072/novel-aerosol-phase-extraction-method-for-the-determination-of-ca-k-mg-and-na-in-biodiesel-through-inductively-coupled-plasma-atomic-emission-spectrometry
#3
Raquel Sanchez, Salvador Maestre, Maria Soledad Prats Moya, José Luis Todoli
A novel extraction method was developed, optimized and validated for the elemental analysis of organic samples. The method, called aerosol phase extraction (APE), was based on the nebulization of the extracting aqueous solution (0.1 mol L-1 nitric acid) on the sample. The extraction was performed at the interface of each generated extractant droplets as they entered in contact with the samples. Afterwards, the phases were allowed to separate and Ca, K, Na and Mg were determined in aqueous phase by means of inductively coupled plasma optical emission spectroscopy (ICP-OES)...
November 15, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29136112/local-production-of-tenascin-c-acts-as-a-trigger-for-monocyte-macrophage-recruitment-that-provokes-cardiac-dysfunction
#4
Dounia Abbadi, Fanny Laroumanie, Mathilde Bizou, Joffrey Pozzo, Danièle Daviaud, Christine Delage, Denis Calise, Fréderique Gaits-Iacovoni, Marianne Dutaur, Florence Tortosa, Edith Renaud-Gabardos, Victorine Douin-Echinard, Anne-Catherine Prats, Jerome Roncalli, Angelo Parini, Nathalie Pizzinat
Aims: Tenascin-C (TNC) is an endogenous danger signal molecule strongly associated with inflammatory diseases and with poor outcome in patients with cardiomyopathies. Its function within pathological cardiac tissue during pressure overload remains poorly understood. Methods and results: We showed that TNC accumulates after 1 week of transverse aortic constriction (TAC) in the heart of 12-week-old male mice. By cross bone marrow transplantation experiments, we determined that TNC deposition relied on cardiac cells and not on haematopoietic cells...
November 10, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/29133560/levofloxacin-population-pharmacokinetics-in-south-african-children-treated-for-multidrug-resistant-tuberculosis
#5
Paolo Denti, Anthony J Garcia-Prats, Heather R Draper, Lubbe Wiesner, Jana Winckler, Stephanie Thee, Kelly E Dooley, Rada M Savic, Helen M McIlleron, H Simon Schaaf, Anneke C Hesseling
Background: Levofloxacin is increasingly used in the treatment of multidrug-resistant tuberculosis (MDR-TB). There are limited paediatric pharmacokinetic data to inform dose selection for children.Methods: Children routinely receiving levofloxacin (250 mg adult tablets) for MDR-TB prophylaxis or disease in Cape Town, South Africa, underwent pharmacokinetic sampling following a 15 or 20 mg/kg dose, given as whole tablet(s) or crushed, orally, or by nasogastric tube. Pharmacokinetic parameters were estimated using non-linear mixed effects modelling...
November 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29133558/pharmacokinetics-and-drug-drug-interactions-of-lopinavir-ritonavir-administered-with-first-and-second-line-antituberculosis-drugs-in-hiv-infected-children-treated-for-multidrug-resistant-tuberculosis
#6
Louvina E van der Laan, Anthony J Garcia-Prats, H Simon Schaaf, Tjokosela Tikiso, Lubbe Wiesner, Mine de Kock, Jana Winckler, Jennifer Norman, Helen McIlleron, Paolo Denti, Anneke C Hesseling
Background Lopinavir/ritonavir forms the backbone of current first-line antiretroviral regimens in young HIV-infected children. As multidrug-resistant (MDR) tuberculosis (TB) frequently occurs in young children in high-burden TB settings, it is important to identify potential interactions between MDR-TB treatment and lopinavir/ritonavir. We describe the pharmacokinetics of and potential drug-drug interactions between lopinavir/ritonavir and routine drugs used for MDR-TB treatment in HIV-infected children.Methods A combined population pharmacokinetic model was developed to jointly describe the pharmacokinetics of lopinavir and ritonavir in 32 HIV-infected children (16 on MDR-TB treatment with combinations of high-dose isoniazid, pyrazinamide, ethambutol, ethionamide, terizidone, a fluoroquinolone, and amikacin: and 16 without TB), who were established on a lopinavir/ritonavir-containing antiretroviral regimen...
November 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29133142/dedifferentiated-endometrial-carcinomas-with-neuroendocrine-features-a-clinicopathologic-immunohistochemical-and-molecular-genetic-study
#7
Iñigo Espinosa, Antonio De Leo, Emanuela D'Angelo, Juan M Rosa-Rosa, Marina Corominas, Alan Gonzalez, José Palacios, Jaime Prat
Undifferentiated endometrial carcinoma is an aggressive type of uterine cancer which is occasionally associated with a low-grade endometrioid carcinoma component. This combination is referred to as "dedifferentiated endometrioid endometrial carcinoma." Neuroendocrine expression may occur in undifferentiated endometrial carcinoma but its significance in dedifferentiated endometrial carcinomas is unknown. To gain insight into the pathogenesis of these tumors we have analyzed the immunophenotype (ARID1A, MLH1, PMS2, MSH2, MSH6, p53, b-catenin, SMARCB1, synaptophysin, chromogranin A, and CD56) and mutational status (PTEN, KRAS, PIK3CA, TP53 and POLE) of 4 dedifferentiated endometrial carcinomas with strong and diffuse neuroendocrine expression...
November 10, 2017: Human Pathology
https://www.readbyqxmd.com/read/29125475/control-of-active-turbulence-through-addressable-soft-interfaces
#8
Pau Guillamat, Jérôme Hardoüin, Berta M Prat, Jordi Ignés, Francesc Sagues
We present an experimental study of a kinesin/tubulin active nematic formed at different oil interfaces. By tuning the interfacial rheology of the contacting oil, we have been able to condition and control the seemingly chaotic motion that characterizes the self-sustained active flows in our preparations. The active nematic is inherently unstable and spontaneously develops defects from an initial homogeneous state. We show that the steady state and, in particular, the density and dynamics of the defects strongly depends on the rheology of the contacting oil...
November 10, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29123263/nuclear-igf-1r-predicts-chemotherapy-and-targeted-therapy-resistance-in-metastatic-colorectal-cancer
#9
Jordi Codony-Servat, Miriam Cuatrecasas, Elena Asensio, Carla Montironi, Anna Martínez-Cardús, Mercedes Marín-Aguilera, Carlos Horndler, Eva Martínez-Balibrea, Michele Rubini, Pedro Jares, Oscar Reig, Iván Victoria, Lydia Gaba, Marta Martín-Richard, Vicente Alonso, Pilar Escudero, Carlos Fernández-Martos, Jaime Feliu, Jose Carlos Méndez, Miguel Méndez, Javier Gallego, Antonieta Salud, Federico Rojo, Antoni Castells, Aleix Prat, Rafael Rosell, Xabier García-Albéniz, Jordi Camps, Joan Maurel
BACKGROUND: Although chemotherapy is the cornerstone treatment for patients with metastatic colorectal cancer (mCRC), acquired chemoresistance is common and constitutes the main reason for treatment failure. Monoclonal antibodies against insulin-like growth factor-1 receptor (IGF-1R) have been tested in pre-treated mCRC patients, but results have been largely deceiving. METHODS: We analysed time to progression, overall survival, and the mutational status of RAS, BRAF and nuclear p-IGF-1R expression by immunohistochemistry, in 470 metastatic CRC patients...
November 9, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29118392/control-of-evaporation-by-geometry-in-capillary-structures-from-confined-pillar-arrays-in-a-gap-radial-gradient-to-phyllotaxy-inspired-geometry
#10
Chen Chen, Paul Duru, Pierre Joseph, Sandrine Geoffroy, Marc Prat
Evaporation is a key phenomenon in the natural environment and in many technological systems involving capillary structures. Understanding the evaporation front dynamics enables the evaporation rate from microfluidic devices and porous media to be finely controlled. Of particular interest is the ability to control the position of the front through suitable design of the capillary structure. Here, we show how to design model capillary structures in microfluidic devices so as to control the drying kinetics. This is achieved by acting on the spatial organization of the constrictions that influence the invasion of the structure by the gas phase...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29106744/germ-cell-tumor-growth-patterns-originating-from-clear-cell-carcinomas-of-the-ovary-and-endometrium-a-comparative-immunohistochemical-study-favouring-their-origin-from-somatic-stem-cells
#11
F F Nogales, J Prat, M Schuldt, N Cruz-Viruel, B Kau, E D'Angelo, X Matias-Guiu, A Vidal, W G McCluggage, J W Oosterhuis
AIMS: To report a series of 11 ovarian and one endometrial neoplasm in elderly patients with mixed clear cell tumour and germ cell tumour (GCT) components, to compare their immunohistochemical and demonstrate a putative stem cell population. METHODS AND RESULTS: The clear cell tumours included 11 clear cell carcinomas (CCC) and 1 borderline clear cell tumour, while the GCT always included glandular yolk sac tumour (YST). In 4 cases, there were also foci of teratoma with immature neuroepithelial and endodermal tissues, and undifferentiated areas showing true embryoids...
November 6, 2017: Histopathology
https://www.readbyqxmd.com/read/29102109/molecular-resistance-mechanisms-of-mycoplasma-agalactiae-to-macrolides-and-lincomycin
#12
Miranda Prats-van der Ham, Juan Tatay-Dualde, Christian de la Fe, Ana Paterna, Antonio Sánchez, Juan Carlos Corrales, Antonio Contreras, Ángel Gómez-Martín
The extensive use of antimicrobials for disease control has caused a remarkable decrease in antimicrobial susceptibility of different animal mycoplasma species, including Mycoplasma agalactiae (M. agalactiae), the main causative agent of contagious agalactia. However, the molecular mechanisms behind M. agalactiae resistance to macrolides and lincomycin have not yet been elucidated. The aim of the present study was to investigate the association between minimum inhibitory concentration (MIC) values of different antimicrobials and mutations in the 23S rRNA gene and ribosomal proteins L4 and L22, analysing both field isolates (n=50) and in vitro selected resistant mutants of M...
November 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/29099420/predictors-of-intubation-in-patients-with-acute-hypoxemic-respiratory-failure-treated-with-a-noninvasive-oxygenation-strategy
#13
Jean-Pierre Frat, Stéphanie Ragot, Rémi Coudroy, Jean-Michel Constantin, Christophe Girault, Gwénael Prat, Thierry Boulain, Alexandre Demoule, Jean-Damien Ricard, Keyvan Razazi, Jean-Baptiste Lascarrou, Jérôme Devaquet, Jean-Paul Mira, Laurent Argaud, Jean-Charles Chakarian, Muriel Fartoukh, Saad Nseir, Alain Mercat, Laurent Brochard, René Robert, Arnaud W Thille
OBJECTIVES: In patients with acute hypoxemic respiratory failure, noninvasive ventilation and high-flow nasal cannula oxygen are alternative strategies to conventional oxygen therapy. Endotracheal intubation is frequently needed in these patients with a risk of delay, and early predictors of failure may help clinicians to decide early. We aimed to identify factors associated with intubation in patients with acute hypoxemic respiratory failure treated with different noninvasive oxygenation techniques...
November 2, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29096017/tuberculous-pericardial-effusions-in-children
#14
Ndidi J Obihara, Elisabetta Walters, John Lawrenson, Anthony J Garcia-Prats, Anneke C Hesseling, H Simon Schaaf
Current data on tuberculous pericardial effusion in children are limited. In this study, the cases of 30 children with tuberculous pericardial effusion were reviewed retrospectively. The prevalence of human immunodeficiency virus and of culture-confirmed tuberculosis was high. Chest radiography provided lower diagnostic sensitivity than sonography but detected all large and complicated effusions. Outcomes were generally good, and residual complications were mainly due to comorbidity.
October 31, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/29079180/mixed-endometrial-carcinomas-with-a-low-grade-serous-like-component-a-clinicopathologic-immunohistochemical-and-molecular-genetic-study
#15
Iñigo Espinosa, Emanuela D'Angelo, Marina Corominas, Alan Gonzalez, Jaime Prat
Recently, we reported 2 mixed endometrioid endometrial carcinomas with a low-grade serous-like component which doesn't fit into any of the 4 molecular groups described by The Cancer Genome Atlas (TCGA). In order to understand the nature of these tumors, we have done an immunohistochemical and molecular genetic study of these two cases and added a third case. Immunoreactivity for p53, ER, Ki67, WT1, MLH1, PMS2, MSH2, and MSH6 were assessed. Targeted next-generation sequencing for somatic mutations, including genes commonly implicated in carcinogenesis including TP53, KRAS, and PIK3CA, and Sanger sequencing for PTEN and POLE were also performed...
October 24, 2017: Human Pathology
https://www.readbyqxmd.com/read/29073783/book-review-endoscopic-approaches-to-the-paranasal-sinuses-and-skull-base-bernal-sprekelsen-manuel-alobid-isam-ensenat-joaquim-prats-galino-alberto-eds-endoscopic-approaches-to-the-paranasal-sinuses-and-skull-base-barcelona-thieme-2017-hard-cover-and-e-book
#16
https://www.readbyqxmd.com/read/29066856/modelling-acrylamide-acute-neurotoxicity-in-zebrafish-larvae
#17
Eva Prats, Cristian Gómez-Canela, Shani Ben-Lulu, Tamar Ziv, Francesc Padrós, Daniel Tornero, Natàlia Garcia-Reyero, Romà Tauler, Arie Admon, Demetrio Raldúa
Acrylamide (ACR), a type-2 alkene, may lead to a synaptopathy characterized by ataxia, skeletal muscles weakness and numbness of the extremities in exposed human and laboratory animals. Currently, only the mildly affected patients undergo complete recovery, and identification of new molecules with therapeutic bioactivity against ACR acute neurotoxicity is urgently needed. Here, we have generated a zebrafish model for ACR neurotoxicity by exposing 5 days post-fertilization zebrafish larvae to 1 mM ACR for 3 days...
October 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29064476/perirenal-fat-is-related-to-carotid-intima-media-thickness-in-children
#18
J Bassols, J-M Martínez-Calcerrada, A Prats-Puig, G Carreras-Badosa, S Xargay-Torrent, E Lizarraga-Mollinedo, M Feliu-Alsina, E Riera-Pérez, I Osiniri, F de Zegher, L Ibáñez, A López-Bermejo
BACKGROUND/OBJECTIVES: It is well known that increased abdominal fat is associated with cardiovascular (CV) risk. Perirenal fat has been recently associated with CV risk in adults. However, studies with children are lacking. We investigated the relationship of perirenal fat and other abdominal fat depots (including preperitoneal, intra-abdominal and subcutaneous fat) with carotid intima-media thickness (cIMT-a surrogate marker of CV risk) in prepubertal children, so as to identify novel markers that can be easily assessed and used in the early prevention of cardiovascular disease...
September 25, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29062823/interaction-of-demographic-factors-with-the-results-of-the-surgery-for-degenerative-disease-of-the-cervical-spine-a-retrospective-evaluation
#19
Celso Garreta Prats Dias, Bruno Braga Roberto, Lucas Basaglia, Mario Lenza, Rodrigo Junqueira Nicolau, Mario Ferretti
OBJECTIVE: Degenerative disease of the cervical spine is a frequent source of intermittent neck pain, where the predominant symptom is axial neck pain. The indications for surgical treatment are reserved for the cases where the conservative treatment has not relieved the symptoms or the patient presents progressive neurological impairment. The objective of this study was to evaluate the prognostic factors involved in patients submitted to surgical treatment of the cervical spine. METHODS: The study analyzed data from patients submitted to cervical spine surgery between July 2011 and November 2015 (n = 58)...
September 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/29057376/p2y12-receptor-function-and-response-to-cangrelor-in-neonates-with-cyanotic-congenital-heart-disease
#20
Elisabeth A Kaza, Matthew C Egalka, Hairu Zhou, Jianchun Chen, Denise Evans, Jayne Prats, Ruizhi Li, Scott L Diamond, Julie A Vincent, Emile A Bacha, Thomas G Diacovo
Shunt thrombosis remains a major cause of morbidity and mortality, especially during the initial palliation for single-ventricle physiology. The authors present evidence that the P2Y12 inhibitor cangrelor may fill a therapeutic void in thromboprophylaxis. They base this theory on results showing that platelets from neonatal patients with cyanotic congenital heart disease have a robust response to adenosine diphosphate and are amenable to P2Y12 inhibition with cangrelor. Unique to this study was their ability to establish drug efficacy in an avatar mouse model that permits the in vivo evaluation of human platelet-mediated thrombus formation illustrating that this P2Y12 inhibitor yields the intended biological response...
August 2017: JACC. Basic to Translational Science
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