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https://www.readbyqxmd.com/read/28068231/establishing-evidence-based-indications-for-proton-therapy-an-overview-of-current-clinical-trials
#1
Mark V Mishra, Sameer Aggarwal, Soren M Bentzen, Nancy Knight, Minesh P Mehta, William F Regine
PURPOSE: To review and assess ongoing proton beam therapy (PBT) clinical trials and to identify major gaps. METHODS AND MATERIALS: Active PBT clinical trials were identified from clinicaltrials.gov and the World Health Organization International Clinical Trials Platform Registry. Data on clinical trial disease site, age group, projected patient enrollment, expected start and end dates, study type, and funding source were extracted. RESULTS: A total of 122 active PBT clinical trials were identified, with target enrollment of >42,000 patients worldwide...
February 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28046339/su-f-p-51-similarity-analysis-of-the-linear-accelerator-machines-based-on-clinical-simulation
#2
K Li
PURPOSE: To evaluate the clinical rationale for Truebeam and Trilogy Linac machines from Varian Medical System as exchangeable treatment modalities in the same radiation oncology department. METHODS: Intensity Modulated Radiotherapy (IMRT) plans for different diseases were selected for this study. These disease sites included brain, head and neck, breast, lung, and prostate. The parameters selected for this study were the energy amount, Monitor Unit (MU); dose coverage of target reflected by prescription isodose volume(PIV); dose spillage described by the volume of 50% isodoseline of the prescription; and dose homogeneities represented by the maximum dose (MaxD) and the minimum dose (MinD) of target volume (TV) and critical structure (CS)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28034487/does-the-time-of-radiotherapy-affect-treatment-outcomes-a-review-of-the-literature
#3
S Chan, L Rowbottom, R McDonald, G A Bjarnason, M Tsao, C Danjoux, E Barnes, M Popovic, H Lam, C DeAngelis, E Chow
Circadian rhythm-dependent cell cycle progression produces daily variations in radiosensitivity. This literature review aims to summarise the data on whether radiotherapy outcomes differ depending on administration time. A literature search was conducted on Ovid Medline, Embase, Cochrane Central Register of Controlled Trials and PubMed using key words such as 'radiotherapy', 'circadian rhythm', 'treatment outcome' and 'survival'. Articles evaluating the correlation between radiotherapy time and outcomes in cancer patients were included and relevant information was extracted...
December 26, 2016: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28008224/centrosome-a-promising-anti-cancer-target
#4
REVIEW
Yainyrette Rivera-Rivera, Harold I Saavedra
The centrosome, an organelle discovered >100 years ago, is the main microtubule-organizing center in mammalian organisms. The centrosome is composed of a pair of centrioles surrounded by the pericentriolar material (PMC) and plays a major role in the regulation of cell cycle transitions (G1-S, G2-M, and metaphase-anaphase), ensuring the normality of cell division. Hundreds of proteins found in the centrosome exert a variety of roles, including microtubule dynamics, nucleation, and kinetochore-microtubule attachments that allow correct chromosome alignment and segregation...
2016: Biologics: Targets & Therapy
https://www.readbyqxmd.com/read/28007294/-the-frequency-of-cancer-in-france-most-recent-data-and-trends
#5
Laureen Ribassin-Majed, Gwénaël Le-Teuff, Catherine Hill
We present and discuss recent data on the frequency of cancer in France and on cancer survival. In the male population, the incidence of prostate and head and neck cancers diminishes rapidly and the incidence of the other common cancers: lung and colorectal diminishes less markedly; cancer mortality decreases for most sites. In the female population, the incidence of breast cancer diminishes rapidly, the incidence of colorectal and uterus cancers diminish less markedly and the incidence of lung cancer increases very fast: the mortality trends are similar...
December 19, 2016: Bulletin du Cancer
https://www.readbyqxmd.com/read/28001329/fna-biopsy-of-secondary-nonlymphomatous-malignancies-in-salivary-glands-a-multi-institutional-study-of-184-cases
#6
He Wang, Raza S Hoda, William Faquin, Esther Diana Rossi, Nihar Hotchandani, Tianlin Sun, Marc Pusztaszeri, Tommaso Bizzarro, Massimo Bongiovanni, Viren Patel, Nirag Jhala, Guido Fadda, Yun Gong
BACKGROUND: Secondary malignancies of salivary glands (SMSGs) are among the most common malignant neoplasms to involve the salivary glands. Fine-needle aspiration biopsy (FNAB) of SMSG can present diagnostic challenges. The current report presents the largest such FNAB series to date. METHODS: A search of the pathology database from 6 academic institutions identified 184 FNAB cases of nonlymphomatous SMSG. RESULTS: Of the 184 cases, 171 were of the parotid glands, and 13 were of the submandibular glands; 130 patients were men, and 54 were women, and the mean patient age at diagnosis was 68 years...
December 21, 2016: Cancer
https://www.readbyqxmd.com/read/28001084/resveratrol-as-an-anticancer-agent-a-review
#7
Abdur Rauf, Muhammad Imran, Masood Sadiq Butt, Muhammad Nadeem, Dennis G Peters, Mohammad S Mubarak
Owing to their antimicrobial, antioxidant, and anti-inflammatory activity, grapes (Vitis vinifera L.) are the archetypal paradigms of fruits used not only for nutritional purposes but also for exclusive therapeutics. Grapes are a prominent and promising source of phytochemicals, especially resveratrol, a phytoalexin antioxidant found in red grapes which has both chemopreventive and therapeutic effects against various ailments. Resveratrol's role in reducing different human cancers, including breast, cervical, uterine, blood, kidney, liver, eye, bladder, thyroid, esophageal, prostate, brain, lung, skin, gastric, colon, head and neck, bone, ovarian, and cervical, has been reviewed...
December 21, 2016: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/27931212/pdgf-aa-mediates-mesenchymal-stromal-cell-chemotaxis-to-the-head-and-neck-squamous-cell-carcinoma-tumor-microenvironment
#8
Tammara L Watts, Ruwen Cui, Peter Szaniszlo, Vicente A Resto, Don W Powell, Irina V Pinchuk
BACKGROUND: The robust desmoplasia associated with head and neck squamous cell carcinoma (HNSCC) suggests that the tumor microenvironment may be an important component in the pathophysiology of this cancer. Moreover, the high recurrence rate and poor clinical response to chemotherapy and radiation treatment further underscores that the non-cancerous cells of the microenvironment, such as mesenchymal stromal cells (MSCs), cancer associated fibroblasts (CAFs), and pericytes, may be important in the pathophysiology of HNSCC...
December 8, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27929512/a-survey-on-table-tolerances-and-couch-overrides-in-radiotherapy
#9
Bonnie Chinsky, Rakesh Patel, Joshua Panfil, Murat Surucu, John C Roeske
The purpose of this study was to survey current departmental policies on treatment couch overrides and the values of table tolerances used clinically. A 25-question electronic survey on couch overrides and tolerances was sent to full members of the American Association of Physicists in Medicine (AAPM). The first part of the survey asked participants if table overrides were allowed at their institution, who was allowed to perform these overrides, and if imaging was required with overrides. The second part of the survey asked individuals to provide table tolerance data for the following treatment sites: brain/head and neck (H&N), lung, breast, abdo-men/pelvis and prostate...
November 8, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27929483/a-dosimetric-evaluation-of-knowledge-based-vmat-planning-with-simultaneous-integrated-boosting-for-rectal-cancer-patients
#10
Hao Wu, Fan Jiang, Haizhen Yue, Sha Li, Yibao Zhang
RapidPlan, a commercial knowledge-based optimizer, has been tested on head and neck, lung, esophageal, breast, liver, and prostate cancer patients. To appraise its performance on VMAT planning with simultaneous integrated boosting (SIB) for rectal cancer, this study configured a DVH (dose-volume histogram) estimation model consisting 80 best-effort manual cases of this type. Using the model-generated objectives, the MLC (multileaf collimator) sequences of other 70 clinically approved plans were reoptimized, while the remaining parameters, such as field geometry and photon energy, were maintained...
November 8, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27852183/trends-in-cancer-incidence-and-survival-for-indigenous-and-non-indigenous-people-in-the-northern-territory
#11
John R Condon, Xiaohua Zhang, Karen Dempsey, Lindy Garling, Steven Guthridge
OBJECTIVE: To assess trends in cancer incidence and survival for Indigenous and non-Indigenous Australians in the Northern Territory. DESIGN: Retrospective analysis of population-based cancer registration data. SETTING: New cancer diagnoses in the NT, 1991-2012. MAIN OUTCOME MEASURES: Age-adjusted incidence rates; rate ratios comparing incidence in NT Indigenous and non-Indigenous populations with that for other Australians; 5-year survival; multivariable Poisson regression of excess mortality...
November 21, 2016: Medical Journal of Australia
https://www.readbyqxmd.com/read/27769636/empowering-patients-for-radiation-therapy-safety-results-of-the-empathy-study
#12
J-E Bibault, A Pernet, V Mollo, L Gourdon, O Martin, P Giraud
PURPOSE: With the increase of treatment complexity, enhancing safety is a key concern in radiation oncology. Beyond the involvement of the healthcare professional, patient involvement and empowerment could play a major role in that setting. We explored how patients perceived and fulfilled that role during their radiation treatment. MATERIALS AND METHODS: A voluntary and anonymous questionnaire was administered to all patients treated in our department between November 2013 and May 2014...
December 2016: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/27709959/-64-cu-2-ions-as-pet-probe-an-emerging-paradigm-in-molecular-imaging-of-cancer
#13
Rubel Chakravarty, Sudipta Chakraborty, Ashutosh Dash
Positron emission tomography (PET) imaging has transformed diagnostic nuclear medicine and become an essential strategy in cancer management. With the expected growth of this molecular imaging modality, there is a recognized need for new PET probes to address the clinical challenges in the early diagnosis and staging of various types of cancers. In this endeavor, the prospect of using (64)Cu in the form of simple Cu(2+) ions as PET probe is not only a cost-effective proposition but also seems poised to broaden the palette of molecular imaging probes in the foreseeable future...
November 7, 2016: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/27692741/functional-imaging-in-radiotherapy-in-the-netherlands-availability-and-impact-on-clinical-practice
#14
W V Vogel, M G E H Lam, F A Pameijer, U A van der Heide, J B van de Kamer, M E Philippens, M van Vulpen, M Verheij
AIMS: Functional imaging with positron emission tomography/computed tomography (PET/CT) and multiparametric magnetic resonance (mpMR) is increasingly applied for radiotherapy purposes. However, evidence and experience are still limited, and this may lead to clinically relevant differences in accessibility, interpretation and decision making. We investigated the current patterns of care in functional imaging for radiotherapy in the Netherlands in a care evaluation study. MATERIALS AND METHODS: The availability of functional imaging in radiotherapy centres in the Netherlands was evaluated; features available in >80% of academic and >80% of non-academic centres were considered standard of care...
September 27, 2016: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/27675613/proton-therapy-in-the-usa-from-2012-to-2014-increasing-treatment-of-pediatric-lung-head-and-neck-gastrointestinal-and-breast-cancers-but-no-increase-in-prostate-cancer-treatments-a-study-from-the-national-association-for-proton-therapy
#15
W F Hartsell, D Godes, T D Ketch, J Caron, J M Metz, M P Mehta
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/27671820/honokiol-an-active-compound-of-magnolia-plant-inhibits-growth-and-progression-of-cancers-of-different-organs
#16
Ram Prasad, Santosh K Katiyar
Honokiol (C18H18O2) is a biphenolic natural product isolated from the bark and leaves of Magnolia plant spp. During the last decade or more, honokiol has been extensively studied for its beneficial effect against several diseases. Investigations have demonstrated that honokiol possesses anti-carcinogenic, anti-inflammatory, anti-oxidative, anti-angiogenic as well as inhibitory effect on malignant transformation of papillomas to carcinomas in vitro and in vivo animal models without any appreciable toxicity. Honokiol affects multiple signaling pathways, molecular and cellular targets including nuclear factor-κB (NF-κB), STAT3, epidermal growth factor receptor (EGFR), cell survival signaling, cell cycle, cyclooxygenase and other inflammatory mediators, etc...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27638340/zinc-and-zinc-containing-biomolecules-in-childhood-brain-tumors
#17
Jan Hrabeta, Tomas Eckschlager, Marie Stiborova, Zbynek Heger, Sona Krizkova, Vojtech Adam
Zinc ions are essential cofactors of a wide range of enzymes, transcription factors, and other regulatory proteins. Moreover, zinc is also involved in cellular signaling and enzymes inhibition. Zinc dysregulation, deficiency, over-supply, and imbalance in zinc ion transporters regulation are connected with various diseases including cancer. A zinc ion pool is maintained by two types of proteins: (i) zinc-binding proteins, which act as a buffer and intracellular donors of zinc and (ii) zinc transporters responsible for zinc fluxes into/from cells and organelles...
November 2016: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/27550571/dermatological-adverse-events-with-taxane-chemotherapy
#18
Vincent Sibaud, Nicole R Lebœuf, Henri Roche, Viswanath R Belum, Laurence Gladieff, Marion Deslandres, Marion Montastruc, Audrey Eche, Emmanuelle Vigarios, Florence Dalenc, Mario E Lacouture
Taxanes (docetaxel and paclitaxel) are among the most commonly prescribed anticancer drugs approved for the treatment of metastatic or locally advanced breast, non-small cell lung, prostate, gastric, head and neck, and ovarian cancers, as well as in the adjuvant setting for operable node-positive breast cancers. Although the true incidence of dermatological adverse events (AEs) in patients receiving taxanes is not known, and has never been prospectively analysed, they clearly represent one of the major AEs associated with these agents...
October 1, 2016: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/27468722/mirna-regulated-cancer-stem-cells-understanding-the-property-and-the-role-of-mirna-in-carcinogenesis
#19
REVIEW
Chiranjib Chakraborty, Kok-Yong Chin, Srijit Das
Over the last few years, microRNAs (miRNA)-controlled cancer stem cells have drawn enormous attention. Cancer stem cells are a small population of tumor cells that possess the stem cell property of self-renewal. Recent data shows that miRNA regulates this small population of stem cells. In the present review, we explained different characteristics of cancer stem cells as well as miRNA regulation of self-renewal and differentiation in cancer stem cells. We also described the migration and tumor formation. Finally, we described the different miRNAs that regulate various types of cancer stem cells, such as prostate cancer stem cells, head and neck cancer stem cells, breast cancer stem cells, colorectal cancer stem cells, lung cancer stem cells, gastric cancer stem cells, pancreatic cancer stem cells, etc...
October 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/27430156/identifying-the-role-of-wilms-tumor-1-associated-protein-in-cancer-prediction-using-integrative-genomic-analyses
#20
Li-Sheng Wu, Jia-Yi Qian, Minghai Wang, Haiwei Yang
The Wilms tumor suppressor, WT1 was first identified due to its essential role in the normal development of the human genitourinary system. Wilms tumor 1 associated protein (WTAP) was subsequently revealed to interact with WT1 using yeast two-hybrid screening. The present study identified 44 complete WTAP genes in the genomes of vertebrates, including fish, amphibians, birds and mammals. The vertebrate WTAP proteins clustered into the primate, rodent and teleost lineages using phylogenetic tree analysis. From 1,347 available SNPs in the human WTAP gene, 19 were identified to cause missense mutations...
September 2016: Molecular Medicine Reports
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