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https://www.readbyqxmd.com/read/28102944/a-simple-and-robust-trajectory-based-stereotactic-radiosurgery-treatment
#1
Byron Wilson, Karl Otto, Ermias Gete
INTRODUCTION: We present a Trajectory-based Volumetric Modulated Arc Therapy (TVMAT) technique for Stereotactic Radiosurgery (SRS) that takes advantage of a modern linacs ability to modulate dose rate and move the couch dynamically. In addition, we investigate the quality of the developed TVMAT method and the dosimetric accuracy of the technique. METHODS: The main feature of the TVMAT technique is a standard beam trajectory formed by dynamic motion of the treatment couch and the linac gantry...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28094344/estrogen-related-receptor-is-required-for-the-testicular-development-and-for-the-normal-sperm-axoneme-mitochondrial-derivatives-in-drosophila-males
#2
Snigdha Misra, Anuj Kumar Pandey, Snigdha Gupta, Ajay Kumar, Priyanka Khanna, Jai Shankar, Kristipati Ravi Ram
Estrogen related receptors (ERRs), categorized as orphan nuclear receptors, are critical for energy homeostasis and somatic development. However, significance of ERRs in the development of reproductive organs/organelles/cells remain poorly understood, albeit their homology to estrogen receptors. In this context, here, we show that knockdown of ERR in the testes leads to improperly developed testes with mis-regulation of genes (aly, mia, bruce, bam, bgcn, fzo and eya) involved in spermatogenesis, resulting in reduced male fertility...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28060982/-ethical-dilemmas-about-disclosure-of-errors-in-medicine
#3
Sebastián Lavanderos, Juan Pedraza, Moisés Russo N, Sofía P Salas
Since the publication of the Institute of Medicine’s report “To Err is Human: Building a Safer Health System” awareness of the importance of medical errors has increased. These are a major cause of morbidity and mortality and recent studies suggest that they can be the third leading cause of death in the United States. Difficulties have been identified by health personnel to prevent, detect and disclose to patients the occurrence of a medical error, an also to report them to the appropriate authorities. Although human error cannot be eliminated, it is possible to design safety systems to mitigate their frequency and consequences...
September 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28039389/low-efficacy-of-albendazole-against-trichuris-trichiura-infection-in-schoolchildren-from-port-elizabeth-south-africa
#4
Ivan Müller, Lindsey Beyleveld, Markus Gerber, Uwe Pühse, Rosa du Randt, Jürg Utzinger, Leyli Zondie, Cheryl Walter, Peter Steinmann
BACKGROUND: Albendazole is one of two standard drugs for the control of soil-transmitted helminthiasis. METHODS: A total of 149 schoolchildren from Port Elizabeth, South Africa, were examined for soil-transmitted helminth infections using duplicate Kato-Katz thick smears before and 2 weeks after administration of albendazole (400 mg). RESULTS: Trichuris trichiura was the predominant soil-transmitted helminth species (prevalence 60.4%), followed by Ascaris lumbricoides (47...
December 29, 2016: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28030557/anthropometric-improvement-among-hiv-infected-pre-school-children-following-initiation-of-first-line-anti-retroviral-therapy-implications-for-follow-up
#5
Atnafu Mekonnen Tekleab, Birkneh Tilahun Tadesse, Ababi Zergaw Giref, Damte Shimelis, Meseret Gebre
BACKGROUND: Antiretroviral therapy (ART) is a lifesaving intervention for HIV infected children. There is a scarcity of data on immunological recovery and its relation with growth indicators among HIV infected young children. The current study aims to assess the pattern of anthropometric Z-score improvement following initiation of first-line ART among under-five children and the relationship between anthropometric Z-score improvement and immunologic recovery. METHODS: We included under-five children who were on first-line ART at five major hospitals in Addis Ababa, Ethiopia...
2016: PloS One
https://www.readbyqxmd.com/read/28024757/expression-of-inflammatory-cytokines-and-chemokines-in-replanted-permanent-teeth-with-external-root-resorption
#6
Juliana Vilela Bastos, Tarcilia A Silva, Enrico A Colosimo, Maria Ilma S Côrtes, Daniela Augusta B Ferreira, Eugenio Marcos A Goulart, Ricardo S Gomez, Walderez O Dutra
INTRODUCTION: The progressive forms of inflammatory external root resorption (IERR) and replacement external root resorption (RERR) are serious complications and the main causes of tooth loss after replantation. This study aimed to investigate the expression pattern of inflammatory molecules in extracted human teeth presenting with external root resorption (ERR) after replantation. METHODS: Root fragments from 22 teeth showing IERR and 20 teeth with RERR were triturated using a homogenizer to extract inflammatory molecules...
December 23, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27994322/accuracy-in-the-diagnosis-of-vertical-root-fractures-external-root-resorptions-and-root-perforations-using-cone-beam-computed-tomography-with-different-voxel-sizes-of-acquisition
#7
Fernanda Paula Bragatto, Liogi Iwaki Filho, Amanda Vessoni Barbosa Kasuya, Mariliani Chicarelli, Alfredo Franco Queiroz, Wilton Mitsunari Takeshita, Lilian Cristina Vessoni Iwaki
AIM: The aim of this study is to assess the accuracy of images acquired with cone-beam computed tomography (CBCT) in the identification of three different root alterations. MATERIALS AND METHODS: Forty human premolars were allocated to four experimental groups (n = 10): sound teeth (control), vertical root fracture (VRF), external root resorption (ERR), and root perforation (RP). After the root alterations had been produced, four teeth were randomly assembled into 10 macerated mandibles and submitted to CBCT...
November 2016: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/27992282/mortality-analysis-of-the-life-span-study-lss-cohort-taking-into-account-multiple-causes-of-death-indicated-in-death-certificates
#8
Ayako Takamori, Ikuno Takahashi, Fumiyoshi Kasagi, Akihiko Suyama, Kotaro Ozasa, Takashi Yanagawa
Mortality analyses have been performed using underlying causes of death as reported on death certificates; these are uniquely determined for a deceased person according to the World Health Organization coding system. Comorbidities, the disease conditions other than the underlying cause of death from death certificates recording multiple causes of death, have rarely been explored in Life Span Study subjects. The purpose of this study was to clarify associations between atomic bomb radiation exposure and mortality from combinations of the underlying cause of death and comorbidities...
December 19, 2016: Radiation Research
https://www.readbyqxmd.com/read/27978608/a-case-of-eruptive-neurofibroma-in-a-woman-with-neurofibromatosis-during-treatment-with-methotrexate
#9
Giuliana Onnis, Amelia Lissia, Maria A Montesu, Gianluca Erre, Rosanna Satta
No abstract text is available yet for this article.
2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/27976596/influence-of-non-impacted-third-molars-on-the-pathologies-of-adjacent-second-molars-a-retrospective-study
#10
Zhi-Bang Li, Hong-Lei Qu, Li-Na Zhou, Bei-Min Tian, Fa-Ming Chen
BACKGROUND: Although the removal of impacted third molars (I-M3s) is common in dental clinics, the decision to retain or remove asymptomatic non-impacted third molars (N-M3s) presents a significant challenge. This study investigated the influence of N-M3s on the pathologies of the adjacent second molars (A-M2s). METHODS: The clinical status of M3s was evaluated, and the presence of distal caries, the external root resorption (ERR) and the alveolar bone loss of A-M2s were assessed by orthopantomograms (OPGs)...
December 15, 2016: Journal of Periodontology
https://www.readbyqxmd.com/read/27966445/antimetastatic-effects-of-cordycepin-mediated-by-the-inhibition-of-mitochondrial-activity-and-estrogen-related-receptor-%C3%AE-in-human-ovarian-carcinoma-cells
#11
Chia-Woei Wang, Wei-Hsuan Hsu, Chen-Jei Tai
Cordycepin (3'-deoxyadenosine) is a compound for antitumor, which has been found to exert antiangiogenic, antimetastatic, and antiproliferative effects, as well as inducing apoptosis. However, the association between cancer metastasis and mitochondrial activity in cordycepin-treated ovarian carcinoma cells remains unclear. The 50 and 100 μM of cordycepin inhibits mitochondrial fusion and induces mitochondrial fission, respectively. These suggested that cordycepin showed the down-regulation of mitochondrial function and limitation of energy production...
December 9, 2016: Oncotarget
https://www.readbyqxmd.com/read/27914102/examining-temporal-effects-on-cancer-risk-in-the-international-nuclear-workers-study-inworks
#12
Robert D Daniels, Stephen J Bertke, David B Richardson, Elisabeth Cardis, Michael Gillies, Jacqueline A O'Hagan, Richard Haylock, Dominique Laurier, Klervi Leuraud, Monika Moissonnier, Isabelle Thierry-Chef, Ausrele Kesminiene, Mary K Schubauer-Berigan
The paper continues the series of publications from the International Nuclear Workers Study cohort (INWORKS) that comprises 308,297 workers from France, the United Kingdom and the United States, providing 8.2 million person-years of observation from a combined follow-up period (at earliest 1944 to at latest 2005). These workers' external radiation exposures were primarily to photons, resulting in an estimated average career absorbed dose to the colon of 17.4 milligray. The association between cumulative ionizing radiation dose and cancer mortality was evaluated in general relative risk models that describe modification of the excess relative risk (ERR) per gray (Gy) by time since exposure and age at exposure...
December 3, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27908393/association-of-30-day-readmission-metric%C3%A2-for-heart-failure-under-the-hospital%C3%A2-readmissions-reduction-program%C3%A2-with-quality-of-care-and%C3%A2-outcomes
#13
Ambarish Pandey, Harsh Golwala, Haolin Xu, Adam D DeVore, Roland Matsouaka, Michael Pencina, Dharam J Kumbhani, Adrian F Hernandez, Deepak L Bhatt, Paul A Heidenreich, Clyde W Yancy, James A de Lemos, Gregg C Fonarow
OBJECTIVES: This study sought to determine whether processes of care and long-term clinical outcomes for heart failure (HF) admissions across Get With The Guidelines-Heart Failure (GWTG-HF) program participating centers differ according to HF-specific risk-adjusted 30-day readmission rates (excess readmission ratio [ERR]) as determined by the Hospital Readmission Reduction Program (HRRP). BACKGROUND: HRRP penalizes hospitals with higher than expected risk-adjusted 30-day readmission rates (ERR >1) for common conditions including HF...
December 2016: JACC. Heart Failure
https://www.readbyqxmd.com/read/27895280/effectiveness-of-albendazole-for-hookworm-varies-widely-by-community-and-correlates-with-nutritional-factors-a-cross-sectional-study-of-school-age-children-in-ghana
#14
Debbie Humphries, Sara Nguyen, Sunny Kumar, Josephine E Quagraine, Joseph Otchere, Lisa M Harrison, Michael Wilson, Michael Cappello
Mass drug administration (MDA) targeting school-age children is recommended by the World Health Organization for the global control of soil-transmitted helminth (STH) infections. Although considered safe and cost-effective to deliver, benzimidazole anthelminthics are variably effective against the three most common STNs, and widespread use has raised concern about the potential for emerging resistance. To identify factors mediating response to albendazole, we conducted a cross-sectional study of hookworm infection in the Kintampo North Municipality of Ghana in 2011...
November 28, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27890585/cadmium-in%C3%A2-vivo-exposure-alters-stress-response-and-endocrine-related-genes-in-the-freshwater-snail-physa-acuta-new-biomarker-genes-in-a-new-model-organism
#15
Pedro Martínez-Paz, Mónica Morales, Paloma Sánchez-Argüello, Gloria Morcillo, José Luis Martínez-Guitarte
The freshwater snail Physa acuta is a sensitive organism to xenobiotics that is appropriate for toxicity testing. Cadmium (Cd) is a heavy metal with known toxic effects on several organisms, which include endocrine disruption and activation of the cellular stress responses. There is scarce genomic information on P. acuta; hence, in this work, we identify several genes related to the hormonal system, the stress response and the detoxification system to evaluate the effects of Cd. The transcriptional activity of the endocrine-related genes oestrogen receptor (ER), oestrogen-related receptor (ERR), and retinoid X receptor (RXR), the heat shock proteins genes hsp70 and hsp90 and a metallothionein (MT) gene was analysed in P...
January 2017: Environmental Pollution
https://www.readbyqxmd.com/read/27855443/in-utero-exposure-to-radiation-and-haematological-malignancies-pooled-analysis-of-southern-urals-cohorts
#16
Joachim Schüz, Isabelle Deltour, Lyudmila Y Krestinina, Yulia V Tsareva, Evgenia I Tolstykh, Mikhail E Sokolnikov, Alexander V Akleyev
BACKGROUND: It is scientifically uncertain whether in utero exposure to low-dose ionising radiation increases the lifetime risk of haematological malignancies. METHODS: We pooled two cohorts from the Southern Urals comprising offspring of female workers of a large nuclear facility (the Mayak Production Association) and of women living in areas along the Techa River contaminated by nuclear accidents/waste from the same facility, with detailed dosimetry. RESULTS: The combined cohort totalled 19 536 subjects with 700 504 person-years at risk over the period of incidence follow-up, and slightly more over the period of mortality follow-up, yielding 58 incident cases and 36 deaths up to age 61 years...
January 3, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/27828930/neonatal-icu-system-safety-a-pilot-test-for-medication-error-by-using-fuzzy-grey-relational-analysis
#17
Xin Zhang, Shih-Yu Lee, Jingli Chen, Huaping Liu
This study analyzed risk factors for medication/near-miss errors in the neonatal intensive care unit by using Grey Relational Analysis based on self-incident reports from staff nurses. The ASSESS-ERR Medication System Worksheet was used. A total of 156 medication/near-miss errors were found across 5 stages of the medication use process. The order prescribing stage had the most errors. The highest systemic risk factors were critical drug information missing; environmental, staffing, and workflow problems; and lack of staff education...
November 8, 2016: Journal of Nursing Care Quality
https://www.readbyqxmd.com/read/27825009/effect-of-anakinra-on-recurrent-pericarditis-among-patients-with-colchicine-resistance-and-corticosteroid-dependence-the-airtrip-randomized-clinical-trial
#18
RANDOMIZED CONTROLLED TRIAL
Antonio Brucato, Massimo Imazio, Marco Gattorno, George Lazaros, Silvia Maestroni, Mara Carraro, Martina Finetti, Davide Cumetti, Alessandra Carobbio, Nicolino Ruperto, Renzo Marcolongo, Monia Lorini, Alessandro Rimini, Anna Valenti, Gian Luca Erre, Maria Pia Sormani, Riccardo Belli, Fiorenzo Gaita, Alberto Martini
Importance: Anakinra, an interleukin 1β recombinant receptor antagonist, may have potential to treat colchicine-resistant and corticosteroid-dependent recurrent pericarditis. Objective: To determine the efficacy of anakinra for colchicine-resistant and corticosteroid-dependent recurrent pericarditis. Design, Setting, and Participants: The Anakinra-Treatment of Recurrent Idiopathic Pericarditis (AIRTRIP) double-blind, placebo-controlled, randomized withdrawal trial (open label with anakinra followed by a double-blind withdrawal step with anakinra or placebo until recurrent pericarditis occurred) conducted among 21 consecutive patients enrolled at 3 Italian referral centers between June and November 2014 (end of follow-up, October 2015)...
November 8, 2016: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/27816452/deletion-of-the-transcriptional-coactivator-pgc1%C3%AE-in-skeletal-muscles-is-associated-with-reduced-expression-of-genes-related-to-oxidative-muscle-function
#19
Yukino Hatazawa, Kimiko Minami, Ryoji Yoshimura, Takumi Onishi, Mark Christian Manio, Kazuo Inoue, Naoki Sawada, Osamu Suzuki, Shinji Miura, Yasutomi Kamei
The expression of the transcriptional coactivator PGC1α is increased in skeletal muscles during exercise. Previously, we showed that increased PGC1α leads to prolonged exercise performance (the duration for which running can be continued) and, at the same time, increases the expression of branched-chain amino acid (BCAA) metabolism-related enzymes and genes that are involved in supplying substrates for the TCA cycle. We recently created mice with PGC1α knockout specifically in the skeletal muscles (PGC1α KO mice), which show decreased mitochondrial content...
December 9, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27815431/leukaemia-mortality-and-low-dose-ionising-radiation-in-the-wismut-uranium-miner-cohort-1946-2013
#20
Michaela Kreuzer, Christina Sobotzki, Nora Fenske, James W Marsh, Maria Schnelzer
OBJECTIVES: To examine the risk of death from leukaemia in relation to occupational chronic low-level external and internal radiation exposure in a cohort of 58 972 former German uranium miners with mortality follow-up from 1946 to 2013. METHODS: The red bone marrow (RBM) dose from low-linear energy transfer (LET) (mainly external γ-radiation) and high-LET (mainly radon gas) radiation was estimated based on a job-exposure matrix and biokinetic/dosimetric models...
November 4, 2016: Occupational and Environmental Medicine
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