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https://www.readbyqxmd.com/read/28525996/cancer-risks-in-a-population-based-study-of-70-570-agricultural-workers-results-from-the-canadian-census-health-and-environment-cohort-canchec
#1
Linda Kachuri, M Anne Harris, Jill S MacLeod, Michael Tjepkema, Paul A Peters, Paul A Demers
BACKGROUND: Agricultural workers may be exposed to potential carcinogens including pesticides, sensitizing agents and solar radiation. Previous studies indicate increased risks of hematopoietic cancers and decreased risks at other sites, possibly due to differences in lifestyle or risk behaviours. We present findings from CanCHEC (Canadian Census Health and Environment Cohort), the largest national population-based cohort of agricultural workers. METHODS: Statistics Canada created the cohort using deterministic and probabilistic linkage of the 1991 Canadian Long Form Census to National Cancer Registry records for 1992-2010...
May 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28525608/surgical-resection-for-advanced-lung-cancer-using-the-hemi-clamshell-approach
#2
Yasushi Shintani, Ryu Kanzaki, Tomohiro Kawamura, Soichiro Funaki, Masato Minami, Meinoshin Okumura, Eiji Okura, Yoshihisa Kadota, Mitsunori Ohta
OBJECTIVES: The hemi-clamshell (HCS) approach consists of partial sternotomy with antero-lateral thoracotomy. This study evaluated the utilities and outcomes of the HCS approach in advanced lung cancer patients. METHODS: We retrospectively investigated 45 patients who underwent surgery for advanced lung cancer via the HCS procedure between 2000 and 2014, the indications for surgery being tumour invasion extending to the aorta arch in 5, descending aorta in 9, main pulmonary artery in 5, superior vena cava in 6, right or left atrium in 4, apical thoracic dome in 7 patients and mediastinal lymphadenopathy for left-sided lung cancer in 12...
May 19, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28523582/first-in-human-radiation-dosimetry-of-68-ga-nodaga-rgdyk
#3
Silvano Gnesin, Periklis Mitsakis, Francesco Cicone, Emmanuel Deshayes, Vincent Dunet, Augusto F Gallino, Marek Kosinski, Sébastien Baechler, Franz Buchegger, David Viertl, John O Prior
BACKGROUND: Integrin-targeting radiopharmaceuticals have potential broad applications, spanning from cancer theranostics to cardiovascular diseases. We have previously reported preclinical dosimetry results of (68)Ga-NODAGA-RGDyK in mice. This study presents the first human dosimetry of (68)Ga-NODAGA-RGDyK in the five consecutive patients included in a clinical imaging protocol of carotid atherosclerotic plaques. Five male patients underwent whole-body time-of-flight (TOF) PET/CT scans 10, 60 and 120 min after tracer injection (200 MBq)...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28523162/a-preliminary-exploration-of-the-intravoxel-incoherent-motion-applied-in-the-preoperative-evaluation-of-mediastinal-lymph-node-metastasis-of-lung-cancer
#4
Xin Ye, Shuo Chen, Yaru Tian, Bin You, Wenqian Zhang, Yan Zhao, Tao Jiang, Bin Hu, Hui Li
BACKGROUND: The aim of this study was to investigate the diagnostic value of the intravoxel incoherent motion (IVIM) for distinguishing non-metastatic from metastatic mediastinal lymph nodes in lung cancer. METHODS: IVIM-diffusion weighted imaging (DWI) exams were performed preoperatively on 66 patients with lung cancer from October 2015 to June 2016 in Beijing Chao-Yang Hospital, Capital Medical University. Fifty patients underwent enhanced chest computed tomography (CT) in our hospital, while the other 16 patients already had enhanced chest CT images when they were admitted...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28522279/-stereotactic-lung-radiotherapy-technical-setting-up-on-novalis-tx-%C3%A2-and-single-centre-prospective-study-of-the-100-first-malignant-pulmonary-nodules-treated-at-centre-jean-perrin
#5
A Bellière-Calandry, G Dupic, F Magnier, V Chassin, V Dedieu, M Lapeyre
PURPOSE: Description of the treatment technique of stereotactic lung radiotherapy on Novalis Tx(®) and prospective study of the first 100 pulmonary nodules treated at centre Jean-Perrin (France). MATERIAL AND METHODS: From October 2012 to December 2015, 100 inoperable pulmonary nodules (62 stage I non-small-cell lung cancer and 38 metastases) of 90 patients with a mean age of 68.2 years (range: 46-89 years) were prospectively treated with dynamic arctherapy on Novalis Tx(®)...
May 15, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28520643/risk-of-lung-cancer-mortality-in-nuclear-workers-from-internal-exposure-to-alpha-particle-emitting-radionuclides
#6
James Grellier, Will Atkinson, Philippe Bérard, Derek Bingham, Alan Birchall, Eric Blanchardon, Richard Bull, Irina Canu Guseva, Cécile Challeton-de Vathaire, Rupert Cockerill, Minh T Do, Hilde Engels, Jordi Figuerola, Adrian Foster, Luc Holmstock, Christian Hurtgen, Dominique Laurier, Matthew Puncher, Anthony E Riddell, Eric Samson, Isabelle Thierry-Chef, Margot Tirmarche, Martine Vrijheid, Elisabeth Cardis
BACKGROUND: Carcinogenic risks of internal exposures to alpha-emitters (except radon) are poorly understood. Since exposure to alpha particles-particularly through inhalation-occurs in a range of settings, understanding consequent risks is a public health priority. We aimed to quantify dose-response relationships between lung dose from alpha-emitters and lung cancer in nuclear workers. METHODS: We conducted a case-control study, nested within Belgian, French, and UK cohorts of uranium and plutonium workers...
May 17, 2017: Epidemiology
https://www.readbyqxmd.com/read/28518146/acyl-coa-thioesterase-7-is-involved-in-cell-cycle-progression-via-regulation-of-pkc%C3%AE-p53-p21-signaling-pathway
#7
Seung Hee Jung, Hyung Chul Lee, Hyun Jung Hwang, Hyun A Park, Young-Ah Moon, Bong Cho Kim, Hyeong Min Lee, Kwang Pyo Kim, Yong-Nyun Kim, Byung Lan Lee, Jae Cheol Lee, Young-Gyu Ko, Heon Joo Park, Jae-Seon Lee
Acyl-CoA thioesterase 7 (ACOT7) is a major isoform of the ACOT family that catalyzes hydrolysis of fatty acyl-CoAs to free fatty acids and CoA-SH. However, canonical and non-canonical functions of ACOT7 remain to be discovered. In this study, for the first time, ACOT7 was shown to be responsive to genotoxic stresses such as ionizing radiation (IR) and the anti-cancer drug doxorubicin in time- and dose-dependent manners. ACOT7 knockdown induced cytostasis via activation of the p53-p21 signaling pathway without a DNA damage response...
May 18, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28516043/quantification-of-regional-deformation-of-the-lungs-by-non-rigid-registration-of-three-dimensional-contrast-enhanced-magnetic-resonance-imaging
#8
Jiaxin Shao, Peng Hu
BACKGROUND: Assessment of lung function is vital for the diagnosis of a variety of pathological conditions. Research has been proposed to study pulmonary mechanics and kinematics using two-dimensional (2D) magnetic resonance imaging (MRI). This allows estimation of regional lung tissue mechanics but is limited to 2D information. An approach based on three-dimensional (3D) contrast-enhanced MR angiogram of pulmonary blood vessels and a non-rigid image registration technique is proposed for quantification of lung regional deformations, which can potentially be used for assessment of pulmonary parenchymal mechanics and regional ventilation for disease diagnosis without ionizing radiation...
April 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28515751/malignant-triton-tumor-of-the-lung-infiltrating-the-left-atrium-and-left-ventricle-with-metastasis-to-the-small-intestine
#9
Dariusz Tomaszewski, Sebastian Beta, Jan A Rogowski
Malignant triton tumors are a rare subtype of malignant peripheral nerve sheath tumors showing rhabdomyosarcomatous differentiation. We report the case of a 33-year-old patient who underwent an excision of such a tumor by thoracic and cardiac surgery. He was reoperated on 1 month later because of a tumor of the small intestine and received adjuvant radiation.
March 2017: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28514950/lung-function-imaging-methods-in-cystic-fibrosis-pulmonary-disease
#10
REVIEW
Magdalena Kołodziej, Michael J de Veer, Marian Cholewa, Gary F Egan, Bruce R Thompson
Monitoring of pulmonary physiology is fundamental to the clinical management of patients with Cystic Fibrosis. The current standard clinical practise uses spirometry to assess lung function which delivers a clinically relevant functional readout of total lung function, however does not supply any visible or localised information. High Resolution Computed Tomography (HRCT) is a well-established current 'gold standard' method for monitoring lung anatomical changes in Cystic Fibrosis patients. HRCT provides excellent morphological information, however, the X-ray radiation dose can become significant if multiple scans are required to monitor chronic diseases such as cystic fibrosis...
May 17, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28512460/immunological-aspect-of-radiation-induced-pneumonitis-current-treatment-strategies-and-future-prospects
#11
REVIEW
Anup Kainthola, Teena Haritwal, Mrinialini Tiwari, Noopur Gupta, Suhel Parvez, Manisha Tiwari, Hrideysh Prakash, Paban K Agrawala
Delivery of high doses of radiation to thoracic region, particularly with non-small cell lung cancer patients, becomes difficult due to subsequent complications arising in the lungs of the patient. Radiation-induced pneumonitis is an early event evident in most radiation exposed patients observed within 2-4 months of treatment and leading to fibrosis later. Several cytokines and inflammatory molecules interplay in the vicinity of the tissue developing radiation injury leading to pneumonitis and fibrosis. While certain cytokines may be exploited as biomarkers, they also appear to be a potent target of intervention at transcriptional level...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28512260/targeting-metabolism-and-amp-activated-kinase-with-metformin-to-sensitize-non-small-cell-lung-cancer-nsclc-to-cytotoxic-therapy-translational-biology-and-rationale-for-current-clinical-trials
#12
REVIEW
Michael Troncone, Stephanie M Cargnelli, Linda A Villani, Naghmeh Isfahanian, Lindsay A Broadfield, Laura Zychla, Jim Wright, Gregory Pond, Gregory R Steinberg, Theodoros Tsakiridis
Lung cancer is the most fatal malignancy worldwide, in part, due to high resistance to cytotoxic therapy. There is need for effective chemo-radio-sensitizers in lung cancer. In recent years, we began to understand the modulation of metabolism in cancer and its importance in tumor progression and survival after cytotoxic therapy. The activity of biosynthetic pathways, driven by the Growth Factor Receptor/Ras/PI3k/Akt/mTOR pathway, is balanced by the energy stress sensor pathway of LKB1/AMPK/p53. AMPK responds both to metabolic and genotoxic stress...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28508834/a-dosimetric-analysis-of-cardiac-dose-with-or-without-active-breath-coordinator-moderate-deep-inspiratory-breath-hold-in-left-sided-breast-cancer-radiotherapy
#13
Beena Kunheri, Sanketh Kotne, Sneha S Nair, Dinesh Makuny
BACKGROUND AND AIM: Cardiac toxicity is a major concern for left breast tangential field irradiation. The left ventricle and left anterior descending (LAD) artery are suggested to be radiosensitive and radiation to these structures leads to late lethal cardiotoxicity. Moderate deep inspiration breath hold (mDIBH) during radiation treatment delivery helps in reducing the cardiac dose. This study compares dosimetric parameters of heart with and without active breath coordinator (ABC) mDIBH during tangential field breast cancer radiation...
January 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28508830/dosimetric-verification-of-dose-calculation-algorithm-in-the-lung-during-total-marrow-irradiation-using-helical-tomotherapy
#14
Ewelina Konstanty, Julian Malicki, Katarzyna Łagodowska, Anna Kowalik
INTRODUCTION: Treatment of proliferative diseases of the hematopoietic system involves, in most cases, chemotherapy combined with radiation therapy, which is intended to provide adequate immunosuppressant. Conventionally, total body irradiation (TBI) was used; however, total marrow irradiation (TMI) performed with helical tomotherapy (HT) has been proposed as an alternative, with the aim of delivering the highest dose in the target area (skeleton bone). PURPOSE: The purpose of this study is to evaluate the accuracy of the dose calculation algorithm for the lung in TMI delivered with HT...
January 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28508827/multiple-primary-malignant-neoplasms-a-10-year-experience-at-a-single-institution-from-turkey
#15
Durmus Etiz, Evrim Metcalfe, Melek Akcay
PURPOSE: The development of improved diagnostic techniques, increased survival, and life expectancy of cancer patients have all contributed to the higher frequency of multiple primary malignant neoplasms (MPMN). MPMN can be divided into two main categories: Synchronous MPMN (sMPMN) and metachronous MPMN (mMPMN). MATERIALS AND METHODS: 122 patients with MPMN analyzed retrospectively who were admitted to the Radiation Oncology Department of Eskisehir Osmangazi University Medical Faculty from January 2004 to December 2013...
January 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28506589/the-relationship-between-dosimetric-factors-side-effects-and-survival-in-patients-with-non-small-cell-lung-cancer-treated-with-definitive-radiotherapy
#16
Dilruba Okumus, Sureyya Sarihan, Sema Gozcu, Deniz Sigirli
The patients with non-small cell lung cancer (NSCLC) treated with definitive conformal radiotherapy (RT) were evaluated in terms of side effects and survival. Normal tissue complication probability (NTCP) was calculated for 68 patients treated between 2009 and 2012. Clinical and dosimetric factors were analyzed. The median dose of 63 Gy (range: 54 to 70 Gy) was given with conformal RT with blocks (n = 37), 3-dimensional conformal RT (3DCRT) (n = 11), or intensity-modulated RT (IMRT) (n = 20)...
May 12, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28503898/evaluation-of-initial-setup-errors-of-two-immobilization-devices-for-lung-stereotactic-body-radiation-therapy-sbrt
#17
Yoshihiro Ueda, Teruki Teshima, Higinia Cárdenes, Indra J Das
The aim of this study was to investigate the accuracy and efficacy of two commonly used commercial immobilization systems for stereotactic body radiation therapy (SBRT) in lung cancer. This retrospective study assessed the efficacy and setup accuracy of two immobilization systems: the Elekta Body Frame (EBF) and the Civco Body Pro-Lok (CBP) in 80 patients evenly divided for each system. A cone beam CT (CBCT) was used before each treatment fraction for setup correction in both devices. Analyzed shifts were applied for setup correction and CBCT was repeated...
May 14, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28500351/non-targeted-effects-models-predict-significantly-higher-mars-mission-cancer-risk-than-targeted-effects-models
#18
Francis A Cucinotta, Eliedonna Cacao
Cancer risk is an important concern for galactic cosmic ray (GCR) exposures, which consist of a wide-energy range of protons, heavy ions and secondary radiation produced in shielding and tissues. Relative biological effectiveness (RBE) factors for surrogate cancer endpoints in cell culture models and tumor induction in mice vary considerable, including significant variations for different tissues and mouse strains. Many studies suggest non-targeted effects (NTE) occur for low doses of high linear energy transfer (LET) radiation, leading to deviation from the linear dose response model used in radiation protection...
May 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28499662/-acute-toxicity-of-breast-cancer-irradiation-with-modulated-intensity-by-tomotherapy-%C3%A2
#19
N Aoulad, C Massabeau, B de Lafontan, L Vieillevigne, G Hangard, C Ciprian, L Chaltiel, É Moyal, F Izar
PURPOSE: Helical radiation intensity modulated by tomotherapy improves dose distribution to complex and large volumes. The aim of the study was to assess acute toxicity of this technique during breast cancer irradiation after conserving surgery or mastectomy. PATIENTS AND METHODS: Cutaneous toxicities, lung and oesophageal side effects, and breast lymphedema were retrospectively collected according to the Common Terminology Criteria for Adverse Events Version 4...
May 9, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28496548/palliative-thoracic-radiotherapy-for-lung-cancer-what-is-the-impact-of-total-radiation-dose-on-survival
#20
Carsten Nieder, Terje Tollali, Rosalba Yobuta, Anne Reigstad, Liv Randi Flatoy, Adam Pawinski
BACKGROUND: Effective symptom palliation can be achieved with low-dose palliative thoracic radiotherapy. In several studies, median survival was not improved with higher doses of radiation. More controversy exists regarding the impact of higher doses on 1- and 2-year survival rates. Therefore, a comparison of survival outcomes after radiotherapy with different biologically equivalent doses (equivalent dose in 2-Gy fractions, EQD2) was performed. METHODS: This was a retrospective single-institution study of 232 patients with small or non-small cell lung cancer...
June 2017: Journal of Clinical Medicine Research
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