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https://www.readbyqxmd.com/read/28921401/experience-with-curative-radiotherapy-for-cervix-cancer-in-the-bahamas-for-2006-2016
#1
Glenn Jones, Osama Kellini, Nevein Girgis, Darron Halliday, Raleigh Butler, Thomas McGowan, Conville Brown
BACKGROUND: Cervix cancer is a significant health problem. As access to quality care in Small Island Developing States improves, and cancer centers become established, providers of care can summarize local experience to benchmark system quality and look for ways to further improve value. METHODS: This is a retrospective study of all cases of cervix cancer managed 2006-2016 at The Cancer Centre Bahamas, in conjunction with Princess Margaret Hospital, Nassau, affiliated with The University of West Indies...
September 18, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28919706/profile-of-pembrolizumab-in-the-treatment-of-head-and-neck-squamous-cell-carcinoma-design-development-and-place-in-therapy
#2
REVIEW
Sulsal Haque, Mahender Yellu, Jaskirat Randhawa, Nooshin Hashemi-Sadraei
Head and neck squamous cell cancer (HNSCC) is the sixth most common malignancy worldwide, and despite advances in cytotoxic, surgical and radiation techniques, outcomes are still poor in those with both locally advanced and metastatic diseases. The need for development of better therapeutics along with a greater understanding of the relationship between the immune system and malignancies has led to a new therapeutic modality, immune modulators, particularly checkpoint inhibitors in HNSCC. It is now well recognized that HNSCC circumvents crucial pathways utilized by the immune system to escape surveillance...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28917247/the-optimism-surrounding-stereotactic-body-radiation-therapy-and-immunomodulation
#3
Hannah Tharmalingam, Peter J Hoskin
In recent years, rapidly evolving radiation techniques have enabled the precise delivery of very high doses of radiation to local targets with stereotactic ablative body radiotherapy (SABR). In addition to its direct cytotoxicity, radiation and in particular SABR has powerful immunomodulatory effects resulting in immunogenic cell death and potentiation of the anti-tumour immune response. However, due to the immunosuppressive nature of non-irradiated sites of metastases, radiotherapy alone is seldom sufficient to induce the systemic response required for distant tumour rejection...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28902435/longitudinal-effects-of-single-hindlimb-radiation-therapy-on-bone-strength-and-morphology-at-local-and-contralateral-sites
#4
Megan E Oest, Connor G Policastro, Kenneth A Mann, Nicholas D Zimmerman, Timothy A Damron
Radiation therapy (RTx) is associated with increased risk for late-onset fragility fractures in bone tissue underlying the radiation field. Bone tissue outside the RTx field is often selected as a "normal" comparator tissue in clinical assessment of fragility fracture risk, but the robustness of this comparison is limited by an incomplete understanding of the systemic effects of local radiotherapy. In this study, a mouse model of limited field irradiation was used to quantify longitudinal changes in local (irradiated) and systemic (non-irradiated) femurs with respect to bone density, morphology, and strength...
September 13, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28899103/drfrne-represents-a-hitherto-unknown-class-of-eubacterial-cytoplasmic-disulfide-oxido-reductases
#5
Subhash C Bihani, Lata Panicker, Yogendra S Rajpurohit, Hari S Misra, Vinay Kumar
Aims Living cells employ thioredoxin and glutaredoxin disulfide oxido-reductases to protect thiol groups in intracellular proteins. FrnE protein of Deinococcus radiodurans (drFrnE) is a disulfide oxido-reductase induced in response to Cd2+ exposure and is involved in cadmium and radiation tolerance. The aim of the present study is to probe structure, function and cellular localization of FrnE class of proteins. Results Here we show drFrnE as a novel cytoplasmic oxido-reductase that could be functional in eubacteria under conditions where thioredoxin/glutaredoxin systems are inhibited or absent...
September 13, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28895970/mechanisms-and-applications-of-terahertz-metamaterial-sensing-a-review
#6
REVIEW
Wendao Xu, Lijuan Xie, Yibin Ying
Terahertz (THz) technology has attracted great worldwide interest and novel high-intensity THz sources and plasmonics are two of the most active fields of recent research. Being situated between infrared light and microwave radiation, the absorption of THz rays in molecular and biomolecular systems is dominated by the excitation of intramolecular and intermolecular vibrations. This indicates that THz technology is an effective tool for sensing applications. However, the low sensitivity of free-space THz detection limits the sensing applications, which gives a great opportunity to metamaterials...
September 12, 2017: Nanoscale
https://www.readbyqxmd.com/read/28895032/resection-of-locally-advanced-pancreatic-cancer-without-regression-of-arterial-encasement-after-modern-era-neoadjuvant-therapy
#7
Michael D Kluger, M Farzan Rashid, Vilma L Rosario, Beth A Schrope, Jonathan A Steinman, Elizabeth M Hecht, John A Chabot
INTRODUCTION: Modern-era systemic therapy for locally advanced pancreatic adenocarcinoma (LAPC) offers improved survival relative to historical regimens but not necessarily improved radiographic downstaging to allow more patients to undergo resection. The aim of this study was to evaluate the survival, progression, and pathologic outcomes after resection of LAPC that did not regress from > 180 degrees arterial encasement after neoadjuvant therapy. METHODS: Sixty-one LAPC patients were brought to the operating room after neoadjuvant therapy for NCCN-defined unresectable pancreatic cancer between 2012 and 2017...
September 11, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28894560/poems-syndrome-an-update
#8
REVIEW
Andrea Nozza
POEMS syndrome is a rare, chronic and disabling condition. The causes of this condition remain unknown; however, chronic overproduction of proinflammatory cytokines appears to be a major contributor. Early diagnosis is essential to start treatment before the clinical state of the patient becomes compromised. A complete evaluation of the disease at its onset is critical to the treatment decision. In localized disease, curative doses of radiation (50 Gy) is the recommended therapy. On the other hand, patients with disseminated disease should be given systemic therapy...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28892246/novel-hyperthermia-applicator-system-allows-adaptive-treatment-planning-preliminary-clinical-results-in-tumour-bearing-animals
#9
S Dressel, M-C Gosselin, M H Capstick, E Carrasco, M S Weyland, S Scheidegger, E Neufeld, N Kuster, S Bodis, C Rohrer Bley
Hyperthermia (HT) as an adjuvant to radiation therapy (RT) is a multimodality treatment method to enhance therapeutic efficacy in different tumours. High demands are placed on the hardware and treatment planning software to guarantee adequately planned and applied HT treatments. The aim of this prospective study was to determine the effectiveness and safety of the novel HT system in tumour-bearing dogs and cats in terms of local response and toxicity as well as to compare planned with actual achieved data during heating...
September 11, 2017: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/28890413/persistent-postherniorrhaphy-pain-following-inguinal-hernia-repair-a-cross-sectional-study-of-prevalence-pain-characteristics-and-effects-on-quality-of-life
#10
Tolga Ergönenç, Serbülent Gökhan Beyaz, Hande Özocak, Onur Palabıyık, Fatih Altıntoprak
INTRODUCTION: Chronic inguinal pain due to the inguinal hernia repair is still a serious consideration, and its incidence is evident in approximately 3%-6% of the patients. The purpose of this study was performed to assess the prevalence of chronic pain after inguinal hernia repair and the effects on the quality of life in our patient. METHODS: The records of the patients who were 18 years of age or older and had had an inguinal hernia repair under spinal anesthesia after receiving a diagnosis of inguinal hernia at this hospital from 2009 to 2015 were accessed through the hospital's data system...
September 7, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28886482/area-based-cell-colony-surviving-fraction-evaluation-a-novel-fully-automatic-approach-using-general-purpose-acquisition-hardware
#11
Carmelo Militello, Leonardo Rundo, Vincenzo Conti, Luigi Minafra, Francesco Paolo Cammarata, Giancarlo Mauri, Maria Carla Gilardi, Nunziatina Porcino
BACKGROUND: The current methodology for the Surviving Fraction (SF) measurement in clonogenic assay, which is a technique to study the anti-proliferative effect of treatments on cell cultures, involves manual counting of cell colony forming units. This procedure is operator-dependent and error-prone. Moreover, the identification of the exact colony number is often not feasible due to the high growth rate leading to the adjacent colony merging. As a matter of fact, conventional assessment does not deal with the colony size, which is generally correlated with the delivered radiation dose or the administered cytotoxic agent...
September 5, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28885561/acute-and-late-toxicities-of-concurrent-chemoradiotherapy-for-locally-advanced-non-small-cell-lung-cancer
#12
REVIEW
Vivek Verma, Charles B 2nd Simone, Maria Werner-Wasik
For patients with unresectable locally-advanced non-small cell lung cancer (LA-NSCLC), concurrent chemoradiotherapy improves overall survival as compared to sequential chemotherapy and radiation therapy, but is associated with higher rates of toxicities. Acute, clinically significant esophagitis or pneumonitis can occur in one in five patients. The risks of esophagitis and pneumonitis can impact the decision to deliver concurrent therapy and limit the total dose of radiation therapy that is delivered. Hematologic toxicities and emesis are common toxicities from systemic therapies for LA-NSCLC and can result in delaying chemotherapy dosing or chemotherapy dose reductions...
September 8, 2017: Cancers
https://www.readbyqxmd.com/read/28884088/oncolytic-viral-therapy-for-mesothelioma
#13
REVIEW
Daniel F Pease, Robert A Kratzke
The limited effectiveness of conventional therapy for malignant pleural mesothelioma demands innovative approaches to this difficult disease. Even with aggressive multimodality treatment of surgery, radiation, and/or chemotherapy, the median survival is only 1-2 years depending on stage and histology. Oncolytic viral therapy has emerged in the last several decades as a rapidly advancing field of immunotherapy studied in a wide spectrum of malignancies. Mesothelioma makes an ideal candidate for studying oncolysis given the frequently localized pattern of growth and pleural location providing access to direct intratumoral injection of virus...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28874901/adrenocortical-carcinoma-patterns-of-care-and-role-of-adjuvant-radiation-therapy-a-population-based-study-and-review-of-the-literature
#14
REVIEW
S Atallah, H Al-Assaf, Y Xu, S El-Sayed
PURPOSE: We reviewed the experience of a tertiary cancer centre in the management of adrenocortical carcinoma (acc) treated over 40 years. We also searched the literature for guidelines related to the treatment of acc and for evidence for adjuvant radiation therapy (rt). METHODS: In a retrospective chart review, acc patients treated between January 1974 and December 2013 were identified, and patient demographics and tumour characteristics were extracted. Outcomes data, including dates and sites of failure, vital status, and cause of death, were collected...
August 2017: Current Oncology
https://www.readbyqxmd.com/read/28871996/prognostic-relevance-of-treatment-failure-patterns-in-pediatric-high-grade-glioma-is-there-a-role-for-a-revised-failure-classification-system
#15
John T Lucas, David A Cooper, Scott Hwang, Christopher Tinkle, Xingyu Li, Yimei Li, Brent Orr, Thomas E Merchant, Alberto Broniscer
PURPOSE: We sought to investigate the pattern of treatment failure with respect to anatomic extent, radiation dose, and criteria for failure according to the Response Assessment in Neuro-Oncology (RANO). We evaluated the corresponding prognostic significance of these factors in patients with pediatric high-grade glioma (pHGG). METHODS AND MATERIALS: Fifty-six patients with pHGG were enrolled in an institutional phase 1 to 2 prospective trial that included maximal safe resection and radiation therapy with concurrent and adjuvant erlotinib...
October 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28871983/phase-1-2-study-of-dual-energy-computed-tomography-for-assessment-of-pulmonary-function-in-radiation-therapy-planning
#16
Houda Bahig, Marie-Pierre Campeau, Andréanne Lapointe, Stephane Bedwani, David Roberge, Jacques de Guise, Danis Blais, Toni Vu, Louise Lambert, Carl Chartrand-Lefebvre, Martin Lord, Edith Filion
PURPOSE: To quantify lung function according to a dual-energy computed tomography (DECT)-derived iodine map in patients treated with radiation therapy for lung cancer, and to assess the dosimetric impact of its integration in radiation therapy planning. METHODS AND MATERIALS: Patients treated with stereotactic ablative radiation therapy for early-stage or intensity modulated radiation therapy for locally advanced lung cancer were prospectively enrolled in this study...
October 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28871434/cutaneous-and-mucosal-manifestations-of-sj%C3%A3-gren-s-syndrome
#17
REVIEW
Elena Generali, Antonio Costanzo, Carlo Mainetti, Carlo Selmi
Sjögren's syndrome is currently considered an "autoimmune epithelitis," as exocrine glands, especially salivary and lacrimal, are progressively destructed by an immune-mediated process associated with specific serum autoantibodies and local lymphocyte infiltrate. Xerostomia remains a key complain in patients with Sjögren's syndrome but should be evaluated also for other causes such as xerogenic medications, followed by radiation and chemotherapy for head and neck cancers, hormone disorders, infections, or other connective tissue diseases...
September 4, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28870966/robot-assisted-extracranial-stereotactic-radiotherapy-of-adrenal-metastases-in-oligometastatic-non-small-cell-lung-cancer
#18
Eren Celik, Robert Semrau, Christian Baues, Maike Trommer-Nestler, Wolfgang Baus, Simone Marnitz
AIM: The aim of this study was to evaluate the efficacy and toxicity of stereotactic body radiation therapy (SBRT) in the treatment of patients with adrenal metastases in oligometastatic non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS: Between November 2012 and May 2015, fifteen patients with oligometastatic non-small cell lung cancer and adrenal metastases were treated with the Cyberknife® system. The primary endpoint was local control. RESULTS: The 1-year and 2-year local control rates were 60% and 46...
September 2017: Anticancer Research
https://www.readbyqxmd.com/read/28865518/radiation-induced-liver-toxicity
#19
REVIEW
Pablo Munoz-Schuffenegger, Sylvia Ng, Laura A Dawson
The advent of highly conformal radiation therapy (RT) has defined a new role for RT in the treatment of both primary and metastatic liver cancer. Despite major advances in how RT is delivered, radiation-induced liver disease (RILD) remains a concern. Classic RILD, characterized by anicteric ascites and hepatomegaly, is unlikely to occur if treating to doses of ≤30Gy in 2Gy per fraction in patients with baseline Child-Pugh A liver function. On the other hand, nonclassic RILD is a spectrum of liver toxicity, including a general decline in liver function and elevation of liver enzymes...
October 2017: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/28864223/risk-factors-for-disease-progression-after-postprostatectomy-salvage-radiation-long-term-results-of-a-single-institution-experience
#20
Danielle Rodin, Michael Drumm, Rebecca Clayman, Daniela L Buscariollo, Sigolene Galland-Girodet, Alec Eidelman, Adam S Feldman, Douglas M Dahl, Francis J McGovern, Aria F Olumi, Andrzej Niemierko, William U Shipley, Anthony L Zietman, Jason A Efstathiou
BACKGROUND: Salvage radiotherapy (SRT) has been successfully used for recurrent prostate cancer after radical prostatectomy; however, the optimal timing of SRT remains controversial. Our objective was to identify the risk factors for disease progression after SRT, with a focus on the pre-SRT prostate-specific antigen (PSA) levels in the modern era of PSA testing. PATIENTS AND METHODS: We performed a retrospective review of 551 consecutive patients who had undergone postradical prostatectomy SRT for recurrent prostate cancer from 2000 to 2013...
August 3, 2017: Clinical Genitourinary Cancer
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