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https://www.readbyqxmd.com/read/28102956/experimental-verification-of-4d-monte-carlo-simulations-of-dose-delivery-to-a-moving-anatomy
#1
Sara Gholampourkashi, Miro Vujicic, Jason Belec, Joanna E Cygler, Emily Heath
PURPOSE: To evaluate a novel 4D Monte Carlo simulation tool by comparing calculations to physical measurements using a respiratory motion phantom. METHODS: We used a dynamic Quasar phantom in both stationary and breathing states (sinusoidal motion of amplitude of 1.8 cm and period of 3.3 s) for dose measurements on an Elekta Agility linear accelerator. Gafchromic EBT3 film and the RADPOS 4D dosimetry system were placed inside the lung insert of the phantom to measure dose profiles and point-dose values at the center of the spherical tumor inside the insert...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28102896/impact-of-pre-transplant-depression-on-outcomes-of-allogeneic-and-autologous-hematopoietic-stem-cell-transplantation
#2
Areej El-Jawahri, Yi-Bin Chen, Ruta Brazauskas, Naya He, Stephanie J Lee, Jennifer M Knight, Navneet Majhail, David Buchbinder, Raquel M Schears, Baldeep M Wirk, William A Wood, Ibrahim Ahmed, Mahmoud Aljurf, Jeff Szer, Sara M Beattie, Minoo Battiwalla, Christopher Dandoy, Miguel-Angel Diaz, Anita D'Souza, Cesar O Freytes, James Gajewski, Usama Gergis, Shahrukh K Hashmi, Ann Jakubowski, Rammurti T Kamble, Tamila Kindwall-Keller, Hilard M Lazarus, Adriana K Malone, David I Marks, Kenneth Meehan, Bipin N Savani, Richard F Olsson, David Rizzieri, Amir Steinberg, Dawn Speckhart, David Szwajcer, Helene Schoemans, Sachiko Seo, Celalettin Ustun, Yoshiko Atsuta, Jignesh Dalal, Carmem Sales-Bonfim, Nandita Khera, Theresa Hahn, Wael Saber
BACKGROUND: To evaluate the impact of depression before autologous and allogeneic hematopoietic cell transplantation (HCT) on clinical outcomes posttransplantation. METHODS: We analyzed data from the Center for International Blood and Marrow Transplant Research to compare outcomes after autologous (n = 3786) or allogeneic (n = 7433) HCT for adult patients with hematologic malignancies with an existing diagnosis of pre-HCT depression requiring treatment versus those without pre-HCT depression...
January 19, 2017: Cancer
https://www.readbyqxmd.com/read/28102733/plk1-polo-like-kinase-1-inhibits-mtor-complex-1-and-promotes-autophagy
#3
Stefanie Ruf, Alexander Martin Heberle, Miriam Langelaar-Makkinje, Sara Gelino, Deepti Wilkinson, Carolin Gerbeth, Jennifer Jasmin Schwarz, Birgit Holzwarth, Bettina Warscheid, Chris Meisinger, Marcel A T M van Vugt, Ralf Baumeister, Malene Hansen, Kathrin Thedieck
Mechanistic target of rapamycin complex 1 (MTORC1) and PLK1 (polo like kinase 1) are major drivers of cancer cell growth and proliferation, and inhibitors of both protein kinases are currently being investigated in clinical studies. To date, MTORC1's and PLK1's functions are mostly studied separately, and reports on their mutual crosstalk are scarce. Here, we identify PLK1 as a physical MTORC1 interactor in human cancer cells. PLK1 inhibition enhances MTORC1 activity under nutrient sufficiency and in starved cells, and PLK1 directly phosphorylates the MTORC1 component RPTOR/RAPTOR in vitro...
January 19, 2017: Autophagy
https://www.readbyqxmd.com/read/28102634/left-anterolateral-emergency-thoracotomy-during-the-nuss-procedure-lifesaving-shortcut
#4
Marco Ghionzoli, Diana E Deaconu, Sara Ugolini, Roberto Lo Piccolo, Antonio Messineo
No abstract text is available yet for this article.
January 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28102505/maternal-characteristics-and-incidence-of-overweight-obesity-in-children-a-13-year-follow-up-study-in-an-eastern-mediterranean-population
#5
Sara Jalali-Farahani, Parisa Amiri, Behnood Abbasi, Mehrdad Karimi, Leila Cheraghi, Maryam Sadat Daneshpour, Fereidoun Azizi
Objectives To investigate clustering of parental sociobehavioral factors and their relationship with the incidence of overweight and obesity in Iranian children. Methods Demographics, body weight, and certain medical characteristics of the parents of 2999 children were used to categorize parents by cluster; children's weights were assessed for each cluster. Specifically, survival analysis and Cox regression models were used to test the effect of parental clustering on the incidence of childhood overweight and obesity...
January 19, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28102223/global-and-local-selection-acting-on-the-pathogen-stenotrophomonas-maltophilia-in-the-human-lung
#6
Hattie Chung, Tami D Lieberman, Sara O Vargas, Kelly B Flett, Alexander J McAdam, Gregory P Priebe, Roy Kishony
Bacterial populations diversify during infection into distinct subpopulations that coexist within the human body. Yet, it is unknown to what extent subpopulations adapt to location-specific selective pressures as they migrate and evolve across space. Here we identify bacterial genes under local and global selection by testing for spatial co-occurrence of adaptive mutations. We sequence 552 genomes of the pathogen Stenotrophomonas maltophilia across 23 sites of the lungs from a patient with cystic fibrosis. We show that although genetically close isolates colocalize in space, distant lineages with distinct phenotypes separated by adaptive mutations spread throughout the lung, suggesting global selective pressures...
January 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28101769/childhood-absence-epilepsy-and-benign-epilepsy-with-centro-temporal-spikes-a-narrative-review-analysis
#7
REVIEW
Alberto Verrotti, Renato D'Alonzo, Victoria Elisa Rinaldi, Sara Casciato, Alfredo D'Aniello, Giancarlo Di Gennaro
BACKGROUND: Recent studies have shown a possible coexistence of absence seizures with other forms of epilepsy. The purpose of this study was to ascertain the possible contemporary or subsequent presence of childhood absence epilepsy (CAE) and benign epilepsy with centro-temporal spikes (BECTS) in pediatric epileptic patients. METHODS: A PubMed systematic search indexed for MEDLINE, PubMed and EMBASE was undertaken to identify studies in children including articles written between 1996 and 2015...
January 19, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28101657/levodopa-carbidopa-microtablets-in-parkinson-s-disease-a-study-of-pharmacokinetics-and-blinded-motor-assessment
#8
Marina Senek, Sten-Magnus Aquilonius, Håkan Askmark, Filip Bergquist, Radu Constantinescu, Anders Ericsson, Sara Lycke, Alexander Medvedev, Mevludin Memedi, Fredrik Ohlsson, Jack Spira, Jerker Westin, Dag Nyholm
BACKGROUND: Motor function assessments with rating scales in relation to the pharmacokinetics of levodopa may increase the understanding of how to individualize and fine-tune treatments. OBJECTIVES: This study aimed to investigate the pharmacokinetic profiles of levodopa-carbidopa and the motor function following a single-dose microtablet administration in Parkinson's disease. METHODS: This was a single-center, open-label, single-dose study in 19 patients experiencing motor fluctuations...
January 18, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28101594/michael-schuenke-erik-schulte-udo-schumacher-editors-atlas-of-anatomy-head-neck-and-neuroanatomy-thieme-publishers-new-york-2016-isbn-978-1-62623-120-7
#9
Sara Maria Delle Acque Giorgio, Luigi Mansi
No abstract text is available yet for this article.
January 18, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28101501/classical-presentation-of-acute-pyelonephritis-in-a-case-of-brucellosis
#10
Wadha Alfouzan, Sara Al-Sahali, Hawra'a Sultan, Rita Dhar
Although Brucella species is known to affect almost all organs in humans, renal involvement presenting as acute pyelonephritis remains a rare entity in brucellosis. We report the case of a female patient who presented with symptoms of fever with chills, right loin pain and dysuria in the emergency room. Blood cultures drawn at the time of admission grew Brucella spp., but no organisms were isolated from urine culture although urinalysis data was indicative of urinary tract infection. Empiric therapy with piperacillin/tazobactam plus gentamicin relieved her symptoms...
May 2016: Case Reports in Nephrology and Dialysis
https://www.readbyqxmd.com/read/28101473/purification-and-characterization-of-bovine-serum-albumin-using-chromatographic-method
#11
Sanaz Balkani, Sara Shamekhi, Ramin Raoufinia, Reza Parvan, Jalal Abdolalizadeh
Purpose: Albumin is an abundant protein of blood and has many biopharmaceutical applications. The aim of this study was to purify bovine serum albumin (BSA) using produced rabbit anti-BSA antibody. Methods: The polyclonal antibody was produced against the BSA in rabbits. Then, the pure BSA was injected to three white New Zealand rabbits. ELISA test was done to evaluate antibody production. After antibody purification,the purified antibody was attached to CNBr-activated sepharose and finally it was used for purification of albumin from bovine serum...
December 2016: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28101464/anti-inflammatory-and-antibothropic-properties-of-jatropha-elliptica-a-plant-from-brazilian-cerrado-biome
#12
Sára Cósta Ferreira-Rodrigues, Cássio Milhomens Rodrigues, Marcio Galdino Dos Santos, Jean Antonio Abraham Gautuz, Magali Glauzer Silva, José Carlos Cogo, Camila Batista-Silva, Cleiton Pita Dos Santos, Francisco Carlos Groppo, Karina Cogo-Müller, Yoko Oshima-Franco
Purpose: The aim of this study was to evaluate the antibothropic and anti-inflammatory properties of J. elliptica.Methods: Phytochemical screening and thin-layer chromatography (TLC) assays were performed on J. elliptica hydroalcoholic extract (TE) in order to observe its main constituents. The antibothropic activity of TE was evaluated by the in vitro neuromuscular blockade caused by Bothrops jararacussu venom (Bjssu), in a mouse phrenic nerve-diaphragm model (PND). A quantitative histological study was carried out to observe a possible protection of TE against the venom myotoxicity...
December 2016: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28101456/overview-of-albumin-and-its-purification-methods
#13
REVIEW
Ramin Raoufinia, Ali Mota, Neda Keyhanvar, Fatemeh Safari, Sara Shamekhi, Jalal Abdolalizadeh
As the most frequent plasma protein, albumin constitutes more than 50% of the serum proteins in healthy individuals. It has a key role in oncotic pressure maintenance and it is known as a versatile protein carrier for transportation of various endogenous and exogenous ligands. Reduced amounts of albumin in the body will lead to different kinds of diseases such as hypovolemia and hypoproteinemia. It also has various indications in shocks, burns, cardiopulmonary bypass, acute liver failure and etc. Further applications in research consist of cell culture supplement, drug delivery carrier and protein/drug stabilizer...
December 2016: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28101306/essential-role-of-small-bowel-capsule-endoscopy-in-reclassification-of-colonic-inflammatory-bowel-disease-type-unclassified
#14
Sara Monteiro, Francisca Dias de Castro, Pedro Boal Carvalho, Bruno Rosa, Maria João Moreira, Rolando Pinho, Miguel Mascarenhas Saraiva, José Cotter
AIM: To evaluate the role of small bowel capsule endoscopy (SBCE) on the reclassification of colonic inflammatory bowel disease type unclassified (IBDU). METHODS: We performed a multicenter, retrospective study including patients with IBDU undergoing SBCE, between 2002 and 2014. SBCE studies were reviewed and the inflammatory activity was evaluated by determining the Lewis score (LS). Inflammatory activity was considered significant and consistent with Crohn's disease (CD) when the LS ≥ 135...
January 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28101266/how-to-assess-your-cure-a-practical-guide-for-instructors-of-course-based-undergraduate-research-experiences
#15
Erin E Shortlidge, Sara E Brownell
Integrating research experiences into undergraduate life sciences curricula in the form of course-based undergraduate research experiences (CUREs) can meet national calls for education reform by giving students the chance to "do science." In this article, we provide a step-by-step practical guide to help instructors assess their CUREs using best practices in assessment. We recommend that instructors first identify their anticipated CURE learning outcomes, then work to identify an assessment instrument that aligns to those learning outcomes and critically evaluate the results from their course assessment...
December 2016: Journal of Microbiology & Biology Education: JMBE
https://www.readbyqxmd.com/read/28101028/a-scary-onset-of-a-rare-and-aggressive-type-of-primary-breast-sarcoma-a-case-report
#16
Inês Ramalho, Sara Campos, Teresa Rebelo, Margarida Figueiredo Dias
Primary breast sarcoma, arising from connective tissue within the breast, is extremely rare, accounting for less than 1% of all primary breast malignancies and no more than 5% of all sarcomas. The rarity of this pathology limits most studies to case reports and small retrospective studies, which has led to a lack of consensus on the clinical management. We report a clinical case of a 52-year-old woman, perimenopausal, previously healthy, with regular breast surveillance, who presented with a large (>20 cm) and rapidly expanding hypervascularized tumor of the left breast developed over 10 days, with a very thin preulcerative skin over the last 4 days...
September 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/28100929/quantitative-computed-tomography-analysis-of-the-airways-in-patients-with-cystic-fibrosis-using-automated-software-correlation-with-spirometry-in-the-evaluation-of-severity
#17
Marcel Koenigkam Santos, Danilo Lemos Cruvinel, Marcelo Bezerra de Menezes, Sara Reis Teixeira, Elcio de Oliveira Vianna, Jorge Elias Júnior, José Antonio Baddini Martinez
OBJECTIVE: To perform a quantitative analysis of the airways using automated software, in computed tomography images of patients with cystic fibrosis, correlating the results with spirometric findings. MATERIALS AND METHODS: Thirty-four patients with cystic fibrosis were studied-20 males and 14 females; mean age 18 ± 9 years-divided into two groups according to the spirometry findings: group I (n = 21), without severe airflow obstruction (forced expiratory volume in first second [FEV1] > 50% predicted), and group II (n = 13), with severe obstruction (FEV1 ≤ 50% predicted)...
November 2016: Radiologia Brasileira
https://www.readbyqxmd.com/read/28100882/efficient-fractionation-and-analysis-of-fatty-acids-and-their-salts-in-fat-oil-and-grease-fog-deposits
#18
Herman P Benecke, Sara K Allen, Daniel B Garbark
A fractionation methodology of fat, oil and grease (FOG) deposits was developed based on the insolubility of fatty acid salts in dichloromethane (DCM) and the relatively high solubility of fatty acids and triglycerides in DCM. Using this method, coupled with spectral analysis, it was shown that fatty acids rather than fatty acid salts were the predominant species in FOG deposits obtained from three metropolitan locations in the United States and that fatty acid triglycerides were either not detected or were present in very small concentrations...
January 18, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28100833/follicular-cd8-t-cells-accumulate-in-hiv-infection-and-can-kill-infected-cells-in-vitro-via-bispecific-antibodies
#19
Constantinos Petrovas, Sara Ferrando-Martinez, Michael Y Gerner, Joseph P Casazza, Amarendra Pegu, Claire Deleage, Arik Cooper, Jason Hataye, Sarah Andrews, David Ambrozak, Perla M Del Río Estrada, Eli Boritz, Robert Paris, Eirini Moysi, Kristin L Boswell, Ezequiel Ruiz-Mateos, Ilias Vagios, Manuel Leal, Yuria Ablanedo-Terrazas, Amaranta Rivero, Luz Alicia Gonzalez-Hernandez, Adrian B McDermott, Susan Moir, Gustavo Reyes-Terán, Fernando Docobo, Giuseppe Pantaleo, Daniel C Douek, Michael R Betts, Jacob D Estes, Ronald N Germain, John R Mascola, Richard A Koup
Cytolytic CD8 T cells play a crucial role in the control and elimination of virus-infected cells and are a major focus of HIV cure efforts. However, it has been shown that HIV-specific CD8 T cells are infrequently found within germinal centers (GCs), a predominant site of active and latent HIV infection. We demonstrate that HIV infection induces marked changes in the phenotype, frequency, and localization of CD8 T cells within the lymph node (LN). Significantly increased frequencies of CD8 T cells in the B cell follicles and GCs were found in LNs from treated and untreated HIV-infected individuals...
January 18, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28100730/sleep-to-remember
#20
Susan J Sara
Scientific investigation into the possible role of sleep in memory consolidation began with the early studies of Jenkins and Dallenbach (1924). Despite nearly a century of investigation with a waxing and waning of interest, the role of sleep in memory processing remains controversial and elusive. This review provides the historical background for current views and considers the relative contribution of two sleep states, rapid eye movement sleep and slow-wave sleep, to offline memory processing. The sequential hypothesis, until now largely ignored, is discussed, and recent literature supporting this view is reviewed...
January 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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