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https://www.readbyqxmd.com/read/28441392/radiation-effects-on-the-mixed-convection-flow-induced-by-an-inclined-stretching-cylinder-with-non-uniform-heat-source-sink
#1
Tasawar Hayat, Sajid Qayyum, Ahmed Alsaedi, Saleem Asghar
This study investigates the mixed convection flow of Jeffrey liquid by an impermeable inclined stretching cylinder. Thermal radiation and non-uniform heat source/sink are considered. The convective boundary conditions at surface are imposed. Nonlinear expressions of momentum, energy and concentration are transformed into dimensionless systems. Convergent homotopic solutions of the governing systems are worked out by employing homotopic procedure. Impact of physical variables on the velocity, temperature and concentration distributions are sketched and discussed...
2017: PloS One
https://www.readbyqxmd.com/read/28441255/european-society-of-gynaecological-oncology-guidelines-for-the-management-of-patients-with-vulvar-cancer
#2
Maaike H M Oonk, François Planchamp, Peter Baldwin, Mariusz Bidzinski, Mats Brännström, Fabio Landoni, Sven Mahner, Umesh Mahantshetty, Mansoor Mirza, Cordula Petersen, Denis Querleu, Sigrid Regauer, Lukas Rob, Roman Rouzier, Elena Ulrikh, Jacobus van der Velden, Ignace Vergote, Linn Woelber, Ate G J van der Zee
OBJECTIVE: The aim of this study was to develop clinically relevant and evidence-based guidelines as part of European Society of Gynaecological Oncology's mission to improve the quality of care for women with gynecologic cancers across Europe. METHODS: The European Society of Gynaecological Oncology Council nominated an international development group made of practicing clinicians who provide care to patients with vulvar cancer and have demonstrated leadership and interest in the management of patients with vulvar cancer (18 experts across Europe)...
May 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28435291/role-of-postmastectomy-radiotherapy-in-early-stage-t1-2n0-1m0-triple-negative-breast-cancer-a-systematic-review
#3
REVIEW
Fengxia Chen, Feifei Pu
Triple-negative breast cancer (TNBC), which represents 15%-20% of all breast cancers, is defined by the absence of estrogen receptor (ER) and progesterone receptor (PR) and overexpression of human epidermal growth factor receptor 2 (HER2). Owing to the absence of specific therapeutic targets and its aggressive biologic characteristics, TNBC patients often experience a high risk of disease progression and poor overall survival. Furthermore, TNBC exhibits an early pattern of recurrence with a peak recurrence risk at 2-3 years after surgery...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28431090/current-status-of-the-blue-butterfly-in-fukushima-research
#4
Joji M Otaki, Wataru Taira
Adverse biological impacts of the Fukushima nuclear accident have been revealed using the pale grass blue butterfly, Zizeeria maha, since 2012, which were often considered incompatible with the conventional understanding of radiation biology. This discrepancy likely originates from different system conditions and methodologies. In this article, we first respond to comments from the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) regarding our study; "technical errors" in unit usage and mathematical models noted by UNSCEAR are not errors but reflect our research philosophy not to introduce theoretical assumptions associated with unit conversion and mathematical fit...
April 18, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28427078/a-case-of-adult-metastatic-rhabdomyosarcoma-of-the-prostate-cured-by-long-term-chemotherapy-with-local-radiation
#5
Masato Konno, Koji Mitsuzuka, Shigeyuki Yamada, Shinichi Yamashita, Yasuhiro Kaiho, Akihiro Ito, Mika Watanabe, Yoichi Arai
A 32-year-old man visited our hospital due to urinary retention. Prostate-specific antigen was 13.7 ng/mL. Imaging examinations showed a large prostatic tumor and lung and internal iliac lymph node metastases. Transrectal biopsy confirmed embryonal rhabdomyosarcoma of the prostate classified as cT2bN1M1 (stage IV) by the International Rhabdomyosarcoma Study (IRS) Group staging system. Systemic chemotherapy was started according to the IRS III regimen 36, which consisted of 16 weeks of induction chemotherapy with radiation...
April 21, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28425920/development-of-a-fast-monte-carlo-dose-calculation-system-for-online-adaptive-radiation-therapy-quality-assurance
#6
Yuhe Wang, Thomas Mazur, Justin Park, Deshan Yang, Sasa Mutic, H Harold Li
Online adaptive radiation therapy (ART) based on real-time magnetic resonance imaging represents a paradigm-changing treatment scheme. However, conventional quality assurance (QA) methods based on phantom measurements are not feasible with the patient on the treatment couch. The purpose of this work is to develop a fast Monte Carlo system for validating online re-optimized tri-60Co IMRT adaptive plans with both high accuracy and speed. The Monte Carlo system is based on Dose Planning Method (DPM) code with further simplification of electron transport and consideration of external magnetic fields...
April 20, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28425273/radiation-therapy-for-biliary-tract-tumors-the-joint-experience-of-three-centers
#7
Mehmet Sinan Karabey, Eda Yirmibeşoğlu Erkal, Ahmet Yolcu, Bekir Hakan Bakkal, Özlem Ay, Maksut Görkem Aksu, Emine Binnaz Sarper, Haldun Şükrü Erkal
BACKGROUND/AIM: This study presents the joint experience of three centers in the treatment of patients with biliary tract tumors with radiation therapy (RT). MATERIALS AND METHODS: The records of 27 patients were retrospectively reviewed. All of the patients who had undergone surgical resection received postoperative adjuvant RT, whereas all of the patients who had not undergone a surgical resection received RT with palliative intent. Twenty patients with adequate performance status were treated with RT and chemotherapy, while the remaining seven patients were treated with RT alone...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28425260/the-efficacy-of-microphototherapy-with-a-medlight-cupcubegrimed-device-in-psoriatic-patients-with-localized-lesions
#8
Neslihan Yildirim, Gül Erkin
BACKGROUND/AIM: Psoriasis is a chronic skin disease. To reduce side effects associated with current treatment modalities, new treatment methods are required. Some clinicians have begun to use microphototherapy to treat psoriatic patients with a limited number of lesions (lesions affecting <10% of the body surface area). MATERIALS AND METHODS: Microphototherapy is indicated in patients whose lesions persist despite systemic and topical treatment or when such treatment is contraindicated...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28424830/-when-is-a-nonsurgical-approach-possible-for-metastatic-primary-tumors-and-lymph-node-metastases-of-the-urinary-bladder-and-prostate
#9
R Fietkau
For metastatic carcinomas of the urinary bladder and prostate, systemic therapy is of primary importance. Due to technological advances in radiation oncology such as stereotactic radiotherapy, intensity-modulated radiotherapy, interstitial radiotherapy, and the combination of radiotherapy and chemotherapy, pelvic irradiation can nowadays be carried out effectively and without the risk of major side effects. New data from other tumor entities and retrospective analyses suggest that the use of these technologies can lead to a clinical benefit in terms of improvement in quality of life, local control, and overall survival...
April 19, 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28424084/durable-complete-remission-with-aromatase-inhibitor-therapy-in-a-patient-with-metastatic-uterine-carcinosarcoma-with-poor-performance-status-and-coagulation-disorders-a-case-report
#10
P Martin-Romano, M Jurado, M A Idoate, L Arbea, J L Hernandez-Lizoain, D Cano, J A Paramo, S Martin-Algarra
BACKGROUND: Chemotherapy is considered the most appropriate treatment for metastatic uterine sarcoma, despite its limited efficacy. No other treatment has been conclusively proved to be a real alternative, but some reports suggest that anti-hormonal therapy could be active in a small subset of patients. We report the case of a patient with metastatic uterine carcinosarcoma with positive hormonal receptors and a complete pathological response. CASE PRESENTATION: A 54-year-old white woman presented to our emergency room with hypovolemic shock and serious vaginal bleeding...
April 19, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28417311/immune-checkpoint-inhibitors-for-brain-metastases
#11
REVIEW
Aaron C Tan, Amy B Heimberger, Alexander M Menzies, Nick Pavlakis, Mustafa Khasraw
PURPOSE OF REVIEW: Metastasis of cancer to the brain typically portends a poor prognosis and often results in significant morbidity, including from the side effects of treatment. More effective therapies for patients with brain metastases are needed. The current treatment paradigm uses multiple modalities, including surgery, radiation, and in some contexts, systemic chemotherapy and immunotherapy. Immune checkpoint inhibitors are increasingly being used to treat extracranial disease, and their effectiveness in the management of brain metastases needs to be understood...
June 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28416350/survival-among-men-at-high-risk-of-disseminated-prostate-cancer-receiving-initial-locally-directed-radical-treatment-or-initial-androgen-deprivation-therapy
#12
Prasanna Sooriakumaran, Tommy Nyberg, Olof Akre, Anders Widmark, Freddie Hamdy, Markus Graefen, Stefan Carlsson, Gunnar Steineck, N Peter Wiklund
BACKGROUND: There is increasing low-quality evidence rationalizing the use of radical therapy for men at high risk of disseminated prostate cancer. OBJECTIVE: To investigate, using high-quality epidemiologic data, whether initial radical therapy in men at high risk of disseminated prostate cancer improves survival. DESIGN, SETTING, AND PARTICIPANTS: An observational population-based Swedish study from 1996 to 2010 of men at high risk of disseminated prostate cancer (prostate-specific antigen [PSA] >50) initially treated by radical therapy (radiation therapy [n=630] or radical prostatectomy [n=120]) or androgen deprivation therapy (n=17 602), and followed for up to 15 yr...
April 14, 2017: European Urology
https://www.readbyqxmd.com/read/28412651/time-dependent-effect-of-rutin-on-skin-fibroblasts-membrane-disruption-following-uv-radiation
#13
Agnieszka Gęgotek, Katarzyna Bielawska, Michał Biernacki, Izabela Dobrzyńska, Elżbieta Skrzydlewska
Chronic exposure of the skin to solar UV radiation induces a number of biological alterations, including a redox imbalance; therefore, there is an urgent need for skin cells protective compounds. The aim of this study was to determine the effects of natural, previously extensively examined, polyphenol with antioxidant properties - rutin, on UV-induced skin fibroblasts membrane disruption. Accordingly, fibroblasts exposed to UVA and UVB irradiation were incubated with rutin (12h before and/or up to 24h after irradiation), and the structural and metabolic changes were examined...
April 9, 2017: Redox Biology
https://www.readbyqxmd.com/read/28410606/in-vivo-quantification-of-quantum-dot-systemic-transport-in-c57bl-6-hairless-mice-following-skin-application-post-ultraviolet-radiation
#14
Samreen Jatana, Brian C Palmer, Sarah J Phelan, Robert Gelein, Lisa A DeLouise
BACKGROUND: Previous work has demonstrated size, surface charge and skin barrier dependent penetration of nanoparticles into the viable layers of mouse skin. The goal of this work was to characterize the tissue distribution and mechanism of transport of nanoparticles beyond skin, with and without Ultraviolet Radiation (UVR) induced skin barrier disruption. Atomic absorption spectroscopy (AAS), flow cytometry and confocal microscopy were used to examine the effect of UVR dose (180 and 360 mJ/cm(2) UVB) on the skin penetration and systemic distribution of quantum dot (QD) nanoparticles topically applied at different time-points post UVR using a hairless C57BL/6 mouse model...
April 14, 2017: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/28406447/pvdf-sensor-stimulated-by-infrared-radiation-for-temperature-monitoring-in-microfluidic-devices
#15
Salvatore A Pullano, Ifana Mahbub, Syed K Islam, Antonino S Fiorillo
This paper presents a ferroelectric polymer-based temperature sensor designed for microfluidic devices. The integration of the sensor into a system-on-a-chip platform facilitates quick monitoring of localized temperature of a biological fluid, avoiding errors in the evaluation of thermal evolution of the fluid during analysis. The contact temperature sensor is fabricated by combining a thin pyroelectric film together with an infrared source, which stimulates the active element located on the top of the microfluidic channel...
April 13, 2017: Sensors
https://www.readbyqxmd.com/read/28405106/evaluation-of-intensity-modulated-radiation-therapy-delivery-system-using-a-volumetric-phantom-on-the-basis-of-the-task-group-119-report-of-american-association-of-physicists-in-medicine
#16
Raphaela Avgousti, Christina Armpilia, Ioannis Floros, Christos Antypas
The current work describes the implementation of the American Association of Physicists in Medicine (AAPM)'s Task Group 119 report on a volumetric phantom (Delta(4), Scandidos, Uppsala, Sweden) following the stated dose goals, to evaluate the step-and-shoot intensity modulated radiation therapy (IMRT) system. Delta(4) consists of diode detectors, lying on two crossed planes, measuring the delivered dose, and providing two-dimensional dosimetric information. Seven plans of different goals and complexity were performed, with individual structure sets...
January 2017: Journal of Medical Physics
https://www.readbyqxmd.com/read/28400749/radiative-energy-budgets-of-phototrophic-surface-associated-microbial-communities-and-their-photosynthetic-efficiency-under-diffuse-and-collimated-light
#17
Mads Lichtenberg, Kasper E Brodersen, Michael Kühl
We investigated the radiative energy budgets of a heterogeneous photosynthetic coral reef sediment and a compact uniform cyanobacterial biofilm on top of coastal sediment. By combining electrochemical, thermocouple and fiber-optic microsensor measurements of O2, temperature and light, we could calculate the proportion of the absorbed light energy that was either dissipated as heat or conserved by photosynthesis. We show, across a range of different incident light regimes, that such radiative energy budgets are highly dominated by heat dissipation constituting up to 99...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28399345/intraocular-metastases-a-review
#18
Lazaros Konstantinidis, Bertil Damato
Intraocular metastases almost invariably arise in the uveal tract, mostly in the posterior choroid. They are the most common type of intraocular malignancy and often the first sign of tumor dissemination. Choroidal metastases generally appear as a creamy white or pale yellow mass associated with subretinal fluid and may be multifocal and bilateral. The most common primary sites are breast and lung. Diagnosis is aided by a variety of tests, particularly ultrasonography and optical coherence tomography. Intraocular biopsy is useful in patients with clinical suspicion of uveal metastasis but no evidence of primary malignancy despite systemic evaluation...
March 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28399033/european-society-of-gynaecological-oncology-guidelines-for-the-management-of-patients-with-vulvar-cancer
#19
Maaike H M Oonk, François Planchamp, Peter Baldwin, Mariusz Bidzinski, Mats Brännström, Fabio Landoni, Sven Mahner, Umesh Mahantshetty, Mansoor Mirza, Cordula Petersen, Denis Querleu, Sigrid Regauer, Lukas Rob, Roman Rouzier, Elena Ulrikh, Jacobus van der Velden, Ignace Vergote, Linn Woelber, Ate G J van der Zee
OBJECTIVE: The aim of this study was to develop clinically relevant and evidence-based guidelines as part of European Society of Gynaecological Oncology's mission to improve the quality of care for women with gynecologic cancers across Europe. METHODS: The European Society of Gynaecological Oncology Council nominated an international development group made of practicing clinicians who provide care to patients with vulvar cancer and have demonstrated leadership and interest in the management of patients with vulvar cancer (18 experts across Europe)...
April 8, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28397587/photon-induced-auger-effect-in-biological-systems-a-review
#20
Akinari Yokoya, Takashi Ito
PURPOSE: We review interesting findings reported in the studies of the biological effects induced by inner-shell ionization with the aim of interpreting them from a mechanistic viewpoint of Auger effect of in particular atoms on to the different biological systems. MATERIALS AND METHODS: Cited more than 70 published papers on the Auger effects ranging from DNA related elements (carbon, nitrogen, oxygen and phosphorus) to mammalian cells. Externally administrated bromine, iodine, and platinum have also been cited for the present endeavor...
April 11, 2017: International Journal of Radiation Biology
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