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https://www.readbyqxmd.com/read/29775397/receptor-tyrosine-kinase-signaling-in-cancer-radiotherapy-and-its-targeting-for-tumor-radiosensitization
#1
Poushali Bhattacharya, Neena G Shetake, Badri N Pandey, Amit Kumar
PURPOSE: One of the most important implications of 'Radiation Biology' research is to improve cancer radiotherapy with minimum side effects. In this regard, combination of chemotherapy with radiation has significantly improved tumor control as well as overall survival in a variety of cancers. However, this has been achieved at the cost of significant normal tissue toxicity, due to the lack of specificity of chemotherapy. Membrane-localized receptor tyrosine kinases (RTKs) have been found to play a driving role in various hallmarks of cancer...
May 18, 2018: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/29774271/gatekeepers-for-infertility-treatment-views-of-art-providers-concerning-referrals-by-non-art-providers
#2
Robert Klitzman
Many patients who might benefit from treatment using assisted reproductive technology (ART) do not receive it, raising critical questions of why, and how best to overcome existing barriers. In-depth interviews of approximately 1 h each were conducted with 27 ART providers (17 physicians and 10 other healthcare providers). These interviewees suggest that non-ART providers may serve as gatekeepers in a complex system, involving not only individual-level, but also dyadic and institutional, processes and factors related to provider-patient relationships...
April 2018: Reproductive Biomedicine & Society Online
https://www.readbyqxmd.com/read/29774168/evaluating-the-potential-for-maximized-t-cell-redistribution-entropy-to-improve-abscopal-responses-to-radiotherapy
#3
Rachel Walker, Jonathan D Schoenfeld, Shari Pilon-Thomas, Jan Poleszczuk, Heiko Enderling
The potential for local radiation therapy to elicit systemic (abscopal) anti-tumor immune responses has been receiving a significant amount of attention over the last decade. We recently developed a mathematical framework designed to simulate the systemic dissemination of activated T cells among multiple metastatic sites. This framework allowed the identification of non-intuitive patterns of T cell redistribution after localized therapy, and offered suggestions as to the optimal site to irradiate in order to increase the magnitude of an immune-mediated abscopal response...
September 2017: Convergent Science Physical Oncology
https://www.readbyqxmd.com/read/29772077/a-feature-alignment-score-for-online-cone-beam-ct-based-image-guided-radiotherapy-for-prostate-cancer
#4
Catriona Hargrave, Timothy Deegan, Michael Poulsen, Tomasz Bednarz, Fiona Harden, Kerrie Mengersen
PURPOSE: To develop a method for scoring online cone-beam CT (CBCT)-to-planning CT image feature alignment to inform prostate image-guided radiotherapy (IGRT) decision-making. The feasibility of incorporating volume variation metric thresholds, predictive of delivering planned dose into weighted functions, was investigated. METHODS: Radiation therapists and radiation oncologists participated in workshops where they reviewed prostate CBCT-IGRT case examples and completed a paper-based survey of image feature matching practices...
May 17, 2018: Medical Physics
https://www.readbyqxmd.com/read/29770995/adolescent-and-young-adult-oncology-patients-in-france-heterogeneity-in-pathways-of-care
#5
Emmanuel Desandes, Laurence Brugières, Florence Molinié, Gautier Defossez, Patricia Delafosse, Karine Jehannin-Ligier, Michel Velten, Brigitte Trétarre, Brice Amadéo, Emilie Marrer, Anne-Sophie Woronoff, Olivier Ganry, Alain Monnereau, Tania d'Almeida, Xavier Troussard, Laetitia Daubisse-Marliac, Simona Bara, Anne-Valérie Guizard, Isabelle Baldi, Guy Launoy, Jacqueline Clavel, Brigitte Lacour
BACKGROUND: In order to evaluate at the population level the impact of the actions developed in France since 2004 to organize the care of adolescents and young adults (AYAs) with cancer, we conducted the present study to provide an unbiased view of the pathway of care of these patients. METHODS: Using a population-based registry, we conducted a review of all cases of cancer diagnosed during 2012 and 2013 in 15- to 24-year-old patients living in nineteen French administrative areas...
May 17, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29770585/exploring-the-effect-of-vitamin-e-in-cancer-chemotherapy-a-biochemical-and-biophysical-insight
#6
Mustansir Bhori, Kanchanlata Singh, Thankamani Marar, C MuraliKrishna
Many oncologists contend that patient undergoing chemotherapy must avoid antioxidant supplementation as it may interfere with the activity of the drug. In the present investigation, we have explored the influence of vitamin E, a well known antioxidant on Camptothecin (CPT), a potent anti-cancer drug induced cell apoptosis and death of cervical cancer cells. HeLa cells were treated with different concentrations of CPT in presence and absence of 100μm vitamin E. Treated cells were subjected to cytotoxicity studies, catalase assay, DNA fragmentation assay, clonogenic assay and flow cytometry based apoptosis detection...
May 16, 2018: Journal of Biophotonics
https://www.readbyqxmd.com/read/29769386/global-acceptance-of-biosimilars-importance-of-regulatory-consistency-education-and-trust
#7
REVIEW
Eduardo Cazap, Ira Jacobs, Ali McBride, Robert Popovian, Karol Sikora
Globally, biosimilars are expected to have a key role in improving patient access to biological therapies and addressing concerns regarding the escalating cost of health care. Indeed, in Europe, increased use of biologics and reduced drug prices have been observed after the introduction of biosimilars. Recently, several monoclonal antibody biosimilars of anticancer therapies have been approved, and numerous others are in various stages of clinical development. Biosimilars are authorized via a regulatory pathway separate from that used for generic drugs; they are also regulated separately from novel biologics...
May 16, 2018: Oncologist
https://www.readbyqxmd.com/read/29769383/incidence-of-thyroid-function-test-abnormalities-in-patients-receiving-immune-checkpoint-inhibitors-for-cancer-treatment
#8
Nisha Subhash Patel, Anais Oury, Gregory A Daniels, Lyudmila Bazhenova, Sandip Pravin Patel
BACKGROUND: With the advent of immune-checkpoint inhibitor (ICI) therapy (anti-CTLA-4, anti-PD-1), immune-related adverse events such as thyroid function test abnormalities (TFTAs) are common, with a reported incidence range of 2%-15% depending upon the ICI used. The aim of this study is to describe the incidence of TFTAs retrospectively in patients who received ICI therapy. METHODS: A total of 285 patients were reviewed (178 male, 107 female; 16-94 years of age), of whom 218 had no baseline TFTAs, 61 had baseline TFTAs, and 6 had a history of thyroidectomy (excluded)...
May 16, 2018: Oncologist
https://www.readbyqxmd.com/read/29769103/the-alfa-and-beta-of-tumours-a-review-of-parameters-of-the-linear-quadratic-model-derived-from-clinical-radiotherapy-studies
#9
REVIEW
C M van Leeuwen, A L Oei, J Crezee, A Bel, N A P Franken, L J A Stalpers, H P Kok
BACKGROUND: Prediction of radiobiological response is a major challenge in radiotherapy. Of several radiobiological models, the linear-quadratic (LQ) model has been best validated by experimental and clinical data. Clinically, the LQ model is mainly used to estimate equivalent radiotherapy schedules (e.g. calculate the equivalent dose in 2 Gy fractions, EQD2 ), but increasingly also to predict tumour control probability (TCP) and normal tissue complication probability (NTCP) using logistic models...
May 16, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29765772/nutrition-in-patients-with-cancer-a-new-area-for-medical-oncologists-a-practising-oncologist-s-interdisciplinary-position-paper
#10
EDITORIAL
Stefan Rauh, Andrea Antonuzzo, Paolo Bossi, Robert Eckert, Marie Fallon, Anna Fröbe, Silvia Gonella, Raffaele Giusti, Gabor Lakatos, Daniele Santini, Anna Villarini
No abstract text is available yet for this article.
2018: ESMO Open
https://www.readbyqxmd.com/read/29764891/developing-a-complex-intervention-to-support-timely-engagement-with-palliative-care-for-patients-with-advanced-cancer-in-primary-and-secondary-care-in-the-uk-a-study-protocol
#11
Julia Hackett, Hilary Bekker, Michael I Bennett, Paul Carder, Jean Gallagher, Claire Henry, Suzanne Kite, Sally Taylor, Galina Velikova, Lucy Ziegler
INTRODUCTION: For patients with advanced cancer, timely access to palliative care can improve quality of life and enable patients to participate in decisions about their end-of-life care. However, in a UK population of 2500 patients who died from cancer, one-third did not receive specialist palliative care, and of those who did, the duration of involvement was too short to maximise the benefits. Initiating a conversation about palliative care is challenging for some health professionals and patients often have unmet information needs and misconceptions about palliative care...
May 14, 2018: BMJ Open
https://www.readbyqxmd.com/read/29764185/management-of-metastatic-spinal-cord-compression-among-veterans-health-administration-radiation-oncologists
#12
Ruchika Gutt, Sheeta Malhotra, Shruti Jolly, Drew Moghanaki, Alice V Cheuk, Helen Fosmire, Maria Kelly, Lori Hoffman-Hogg, Stephen Lutz, Mitchell Anscher, George Dawson
BACKGROUND: Optimal management of metastatic spinal cord compression (MSCC) improves functional outcomes in patients with metastatic disease. This survey study evaluated management of MSCC by Veterans Health Administration (VHA) radiation oncologists (ROs), to determine whether management of MSCC correlates with American College of Radiology (ACR) guidelines, and to compare times to initiation of treatment between surgery and radiotherapy (RT). METHODS: Surveys emailed to 79 VHA ROs included questions on steroid use, surgical care, palliative care, fractionation of irradiation, re-irradiation, and management of common MSCC case scenarios...
April 2018: Annals of Palliative Medicine
https://www.readbyqxmd.com/read/29762285/cone-beam-computed-tomography-guided-navigation-in-complex-osteotomies-improves-accuracy-at-all-competence-levels-a-study-assessing-accuracy-and-reproducibility-of-joint-sparing-bone-cuts
#13
Amir Sternheim, Aidin Kashigar, Michael Daly, Harley Chan, Jimmy Qiu, Robert Weersink, David Jaffray, Jonathan C Irish, Peter C Ferguson, Jay S Wunder
BACKGROUND: The objective of this study was to assess the accuracy and reproducibility of a novel cone-beam computed tomography (CBCT)-guided navigation system designed for osteotomies with joint-sparing bone cuts. METHODS: Eighteen surgeons participated in this study. First, 3 expert tumor surgeons resected bone tumors in 3 Sawbones tumor models identical to actual patient scenarios. They first performed these osteotomies without navigation and then performed them using a navigation system and 3-dimensional (3D) planning tools based on CBCT imaging...
May 16, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29761863/surgical-treatment-of-esophageal-cancer-in-the-era-of-multimodality-management
#14
REVIEW
Alicia S Borggreve, B Feike Kingma, Serg A Domrachev, Mikhail A Koshkin, Jelle P Ruurda, Richard van Hillegersberg, Flavio R Takeda, Lucas Goense
Over the last decades, the treatment of resectable esophageal cancer has evolved into a multidisciplinary process in which all players are essential for treatment to be successful. Medical oncologists and radiation oncologists have been increasingly involved since the implementation of neoadjuvant therapy, which has been shown to improve survival. Although esophagectomy is still considered the cornerstone of curative treatment for locally advanced esophageal cancer, it remains associated with considerable postoperative morbidity, despite promising results of minimally invasive techniques...
May 15, 2018: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29760790/anticancer-properties-of-fenofibrate-a-repurposing-use
#15
REVIEW
Xin Lian, Gang Wang, Honglan Zhou, Zongyu Zheng, Yaowen Fu, Lu Cai
Cancer is a leading cause of death throughout the world, and cancer therapy remains a big medical challenge in terms of both its therapeutic efficacy and safety. Therefore, to find out a safe anticancer drug has been long goal for oncologist and medical scientists. Among clinically used medicines with no or little toxicity, fenofibrate is a drug of the fibrate class that plays an important role in lowering the levels of serum cholesterol and triglycerides while elevating the levels of high-density lipoproteins...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29759560/cardiotoxic-effects-of-chemotherapy-a-review-of-both-cytotoxic-and-molecular-targeted-oncology-therapies-and-their-effect-on-the-cardiovascular-system
#16
REVIEW
Hani M Babiker, Ali McBride, Michael Newton, Leigh M Boehmer, Adrienne Goeller Drucker, Mollie Gowan, Manouchkathe Cassagnol, Todd D Camenisch, Faiz Anwer, James M Hollands
Cardiotoxic effects of chemotherapy and targeted drugs are ubiquitous and challenging in the field of oncology therapeutics. The broad spectrum of toxicities ranging from ischemic, hypertensive, cardiomyopathic, and arrhythmic complications can present as a significant challenge for clinicians treating cancer patients. If early diagnosis and intervention of cardiotoxic complications is missed, this can lead to delay or abrogation of planned treatment, which can potentially culminate to significant morbidity due to not only the cardiotoxic complications but also the progression of cancer...
June 2018: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/29757874/the-clearance-of-serum-human-epididymis-protein-4-following-primary-cytoreductive-surgery-for-ovarian-carcinoma
#17
Claire Thompson, Waseem Kamran, Lucy Dockrell, Srwa Khalid, Meena Kumari, Nadia Ibrahim, John OʼLeary, Lucy Norris, Max Petzold, Sharon OʼToole, Noreen Gleeson
OBJECTIVE: The aim of this study was to examine the clearance of serum human epididymis protein 4 (HE4) in the immediate postoperative period in patients undergoing maximal effort cytoreductive surgery for ovarian carcinoma. METHODS: The study was performed at a tertiary gynecologic oncology center. The surgery was performed by accredited gynecological oncologists. RESULTS: Preoperative and serial postoperative venous blood samples at 4, 8, 24, 48, 72, 96, and 120 hours were taken from 10 sequential patients...
May 4, 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29757719/providing-mr-imaging-for-cervical-cancer-brachytherapy-lessons-for-radiologists
#18
Thomas Sullivan, Joseph H Yacoub, Matthew M Harkenrider, William Small, Murat Surucu, Steven M Shea
Brachytherapy (BT), the use of a locally placed or implanted radioactive source for treatment of an adjacent tumor, is an important component in the treatment of patients with both early- and advanced-stage cervical cancer and is increasingly part of the standard treatment protocol. When it is feasible, many radiation oncologists choose to include a magnetic resonance (MR) imaging examination for planning BT treatment (ie, an MR imaging examination after placement of the applicator but before radiation dosing)...
May 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29757474/automated-patient-specific-transperineal-ultrasound-probe-setups-for-prostate-cancer-patients-undergoing-radiotherapy
#19
Saskia Maria Camps, Frank Verhaegen, Ben G L Vanneste, Peter H N de With, Davide Fontanarosa
PURPOSE: The use of ultrasound imaging is not widespread in prostate cancer radiotherapy workflows, despite several advantages (e.g. allowing real-time volumetric organ tracking). This can be partially attributed to the need for a trained operator during acquisition and interpretation of the images. We introduce and evaluate an algorithm that can propose a patient-specific transperineal ultrasound probe setup, based on a CT scan and anatomical structure delineations. The use of this setup during the simulation and treatment stage could improve usability of ultrasound imaging for relatively untrained operators (radiotherapists with less than one year experience with ultrasound)...
May 14, 2018: Medical Physics
https://www.readbyqxmd.com/read/29756421/survey-of-cutaneous-adverse-reactions-to-targeted-cancer-therapies-value-of-dermatological-advice
#20
Giovanni Damiani, Ausilia Manganoni, Simone Cazzaniga, Luigi Naldi
BACKGROUND: Target-therapy offers a better efficacy for several cancers, with less toxic adverse effects, if compared with traditional chemotherapy. However cutaneous complications are increased in number and complexity. The severity of these reactions positively correlates with efficacy, and the management of these reactions is challenging. METHODS: This was a multicenter cross-sectional study on a consecutive series of adult patients with incident cutaneous reactions linked to targeted cancer therapies observed in five referral centers for cancer treatment in the province of Bergamo and Brescia in northern Italy...
May 11, 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
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