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https://www.readbyqxmd.com/read/28812148/local-recurrence-of-squamous-cell-carcinoma-of-the-head-and-neck-after-radio-chemo-therapy-diagnostic-performance-of-fdg-pet-mri-with-diffusion-weighted-sequences
#1
Minerva Becker, Arthur D Varoquaux, Christophe Combescure, Olivier Rager, Marc Pusztaszeri, Karim Burkhardt, Bénédicte M A Delattre, Pavel Dulguerov, Nicolas Dulguerov, Eirini Katirtzidou, Francesca Caparrotti, Osman Ratib, Habib Zaidi, Christoph D Becker
PURPOSE: To determine the diagnostic performance of FDG-PET/MRI with diffusion-weighted imaging (FDG-PET/DWIMRI) for detection and local staging of head and neck squamous cell carcinoma (HNSCC) after radio(chemo)therapy. MATERIALS AND METHODS: This was a prospective study that included 74 consecutive patients with previous radio(chemo)therapy for HNSCC and in whom tumour recurrence or radiation-induced complications were suspected clinically. The patients underwent hybrid PET/MRI examinations with morphological MRI, DWI and FDG-PET...
August 15, 2017: European Radiology
https://www.readbyqxmd.com/read/28806981/understanding-the-potentiality-of-accelerator-based-boron-neutron-capture-therapy-for-osteosarcoma-dosimetry-assessment-based-on-the-reported-clinical-experience
#2
Silva Bortolussi, Ian Postuma, Nicoletta Protti, Lucas Provenzano, Cinzia Ferrari, Laura Cansolino, Paolo Dionigi, Olimpio Galasso, Giorgio Gasparini, Saverio Altieri, Shin-Ichi Miyatake, Sara J González
BACKGROUND: Osteosarcoma is the most frequent primary malignant bone tumour, and its incidence is higher in children and adolescents, for whom it represents more than 10% of solid cancers. Despite the introduction of adjuvant and neo-adjuvant chemotherapy that markedly increased the success rate in the treatment, aggressive surgery is still needed and a considerable percentage of patients do not survive due to recurrences or early metastases. Boron Neutron Capture Therapy (BNCT), an experimental radiotherapy, was investigated as a treatment that could allow a less aggressive surgery by killing infiltrated tumour cells in the surrounding healthy tissues...
August 15, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28804863/personalised-immunomodulating-treatments-for-graves-disease-fact-or-fiction
#3
Tristan Mirko Struja, Alexander Kutz, Stefan Fischli, Christian Meier, Beat Müller, Philipp Schütz
Although Graves' disease has been recognised for more than 100 years, its physiopathological mechanisms are incompletely understood. Treatment strategies today mainly focus on suppression of thyroid hormone production by use of antithyroid drugs or radio-iodine, but neglect the underlying immunological mechanisms. Although Graves' disease is often seen as a prototype for an autoimmune mechanism, it is more likely to be a heterogeneous syndrome showing characteristics of both autoimmunity and immunodeficiency...
August 14, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28804463/effect-of-oral-docosahexaenoic-acid-dha-supplementation-on-dha-levels-and-omega-3-index-in-red-blood-cell-membranes-of-breast-cancer-patients
#4
Alessio Molfino, Maria I Amabile, Sara Mazzucco, Gianni Biolo, Alessio Farcomeni, Cesarina Ramaccini, Simonetta Antonaroli, Massimo Monti, Maurizio Muscaritoli
Rationale: Docosahexaenoic acid (DHA) in cell membrane may influence breast cancer (BC) patients' prognosis, affecting tumor cells sensitivity to chemo- and radio-therapy and likely modulating inflammation. The possibility of identifying BC patients presenting with low DHA levels and/or low ability of DHA incorporation into cell membrane might help to treat this condition. Methods: We enrolled BC patients and healthy controls, recording their seafood dietary intake. DHA in form of algal oil was administered for 10 consecutive days (2 g/day)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28802252/exploiting-radiation-induced-signaling-to-increase-the-susceptibility-of-resistant-cancer-cells-to-targeted-drugs-akt-and-mtor-inhibitors-as-an-example
#5
Iris Eke, Adeola Y Makinde, Molykutty J Aryankalayil, Veit Sandfort, Sanjeewani T Palayoor, Barbara H Rath, Lance Liotta, Mariaelena Pierobon, Emanuel F Petricoin, Matthew F Brown, Jayne M Stommel, Mansoor M Ahmed, C Norman Coleman
Implementing targeted drug therapy in radio-oncologic treatment regimens has greatly improved the outcome of cancer patients. However, the efficacy of molecular targeted drugs such as inhibitory antibodies or small molecule inhibitors essentially depends on target expression and activity, which both can change during the course of treatment. Radiotherapy has previously been shown to activate pro-survival pathways which can help tumor cells to adapt and thereby survive treatment. Therefore, we aimed to identify changes in signaling induced by radiation and evaluate the potential of targeting these changes with small molecules to increase the therapeutic efficacy on cancer cell survival...
August 11, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28801268/positron-emission-tomography-pet-guided-glioblastoma-targeting-by-a-fullerene-based-nanoplatform-with-fast-renal-clearance
#6
Yayun Peng, Dongzhi Yang, Weifei Lu, Xiongwei Hu, Hao Hong, Ting Cai
Various carbonaceous nanomaterials, including fullerene, carbon nanotube, graphene, and carbon dots, have attracted increasing attention during past decades for their potential applications in biological imaging and therapy. In this study, we have developed a fullerene-based tumor-targeted positron emission tomography (PET) imaging probe. Water-soluble functionalized C60 conjugates were radio-labeled with (64)Cu and modified with cyclo (Arg-Gly-Asp) peptides (cRGD) for targeting of integrin αvβ3 in glioblastoma...
August 8, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28799445/molecular-efficacy-of-radio-and-chemotherapy-sequences-from-direct-dna-damages-measurements
#7
Yanfang Dong, Yunfeng Chen, Limei Zhou, Yu Shao, Xianzhi Fu, Yi Zheng
PURPOSE: To investigate the molecular aspects of the synergy of between ionizing radiation and platinum (Pt) chemotherapeutic agents in cancer treatment with chemoradiation therapy (CRT), by measuring damages induced by low-energy electrons (LEE) to DNA bound to cisplatin. LEE are produced abundantly by any types of ionizing radiation and cisplatin represents a typical Pt-chemotherapeutic agents. MATERIALS AND METHODS: Our strategy involves two parallel administrations of cisplatin and irradiation with a 4...
August 11, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/28791989/treatment-of-resistant-idiopathic-hiccups-with-pulse-radio-frequency-on-phrenic-nerve-and-gabapentin-a-case-report
#8
O Ozturk, E Yavuz, B Yazicioglu, B Uzuner
Hiccups affect life quality, career and family life when they become persistent. We present here a 54-year-old man who worked as a mason and a blacksmith with hiccups complaint for nearly one and a half years. In this period, he was admitted to emergency service ten times with fainting or almost fainting, cold sweating and hand stretching complaints. The patient expressed that he frequently threw up when he had hiccups and his social life was negatively affected. He reported that he was treated with baclofen, esomeprazole and hyoscine-n-butyl bromur without relief...
July 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28790108/cyclophilin-a-maintains-glioma-initiating-cell-stemness-by-regulating-wnt-%C3%AE-catenin-signaling
#9
Guangzhi Wang, Jia Shen, Jiahang Sun, Zhenfeng Jiang, Jiabing Fan, Hongjun Wang, Shan Yu, Yu Long, Yi Liu, HOngbo Bao, Kelvin X Zhang, Ke Han, Min-Wei Zhu, Yongri Zheng, Zhiguo Lin, Chuanlu Jiang, Mian Guo
PURPOSE: Glioma-initiating cells (GICs) are glioma stem-like cells that contribute to glioblastoma (GBM) development, recurrence, and resistance to chemotherapy and radiotherapy. They have recently become the focus of novel treatment strategies. Cyclophilin A (CypA) is a cytosolic protein that belongs to the peptidyl-prolyl isomerase (PPIase) family and the major intracellular target of the immunosuppressive drug cyclosporin A (CsA). In this study, we investigate the functions of CypA and its mechanism of action in GICs' development...
August 8, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28774596/patterns-of-failure-guided-biological-target-volume-definition-for-head-and-neck-cancer-patients-fdg-pet-and-dosimetric-analysis-of-dose-escalation-candidate-subregions
#10
Abdallah S R Mohamed, Carlos E Cardenas, Adam S Garden, Musaddiq J Awan, Crosby D Rock, Sarah A Westergaard, G Brandon Gunn, Abdelaziz M Belal, Ahmed G El-Gowily, Stephen Y Lai, David I Rosenthal, Clifton D Fuller, Michalis Aristophanous
BACKGROUND: To identify the radio-resistant subvolumes in pretreatment FDG-PET by mapping the spatial location of the origin of tumor recurrence after IMRT for head-and-neck squamous cell cancer to the pretreatment FDG-PET/CT. METHODS: Patients with local/regional recurrence after IMRT with available FDG-PET/CT and post-failure CT were included. For each patient, both pre-therapy PET/CT and recurrence CT were co-registered with the planning CT (pCT). A 4-mm radius was added to the centroid of mapped recurrence growth target volumes (rGTV's) to create recurrence nidus-volumes (NVs)...
July 31, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28772312/-current-indications-for-surgery-in-small-cell-lung-cancer
#11
Wolfgang Jungraithmayr
Small cell lung cancer (SCLC) is characterised by an aggressive and rapid growth, with a tendency towards early metastatic spread. It has one of the worst prognoses of all malignancies. Though radio-chemotherapy is still considered the mainstay of therapy due to its high sensitivity, increasing evidence, supported by a number of retrospective analyses and large case series, suggests that surgery may play a significant role in the treatment of SCLC within a multimodality treatment concept. In this context, surgery can provide overall survival benefit and improve local control in selected cases...
August 3, 2017: Zentralblatt Für Chirurgie
https://www.readbyqxmd.com/read/28768450/outcome-of-dichorionic-triamniotic-triplet-the-experience-from-an-emerging-fetal-therapy-center
#12
Luming Sun, Gang Zou, Fenhe Zhou, Yingjun Yang, Dick Oepkes, Tao Duan
OBJECTIVES: To report a cohort of dichorionic triamniotic (DCTA) triplets with access to contemporary fetal interventions. DESIGN: Prospective study. SETTING: A regional referral center for the diagnosis and management of complicated multiple pregnancies. POPULATION: All DCTA triplets receiving consultation and prenatal care at our center from 2010 to 2015. METHODS: The following management alternatives for DCTA were offered: 1) expectant management; 2) reduction of 1 or 2 fetus of the monochorionic component using radio frequency ablation (RFA) after 16 weeks or potassium chloride (KCL) before 16 weeks, respectively; 3) reduction of the isolated fetus using KCL before 16 weeks...
August 3, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28756493/impact-of-adjuvant-chemotherapy-after-neoadjuvant-radio-or-radiochemotherapy-for-patients-with-locally-advanced-rectal-cancer
#13
Sven Lichthardt, Lisa Zenorini, Johanna Wagner, Johannes Baur, Alexander Kerscher, Niels Matthes, Caroline Kastner, Jörg Pelz, Volker Kunzmann, Christoph-Thomas Germer, Armin Wiegering
BACKGROUND: Due to its primarily extraperitoneal location, potential affection of the anorectal continence and different metastatic behavior the rectal carcinoma (RC) is classified and treated as an independent disease. Over the past few decades various trials have led to improved multimodal therapies (including radiation, chemotherapy and surgery) for locally advanced rectal cancer and significant changes in the management of this disease whereas the benefit of adjuvant chemotherapy remains unclear...
July 29, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28756006/upfront-vs-no-upfront-neck-dissection-in-primary-head-and-neck-cancer-radio-chemo-therapy-tumor-control-and-late-toxicity
#14
Daan Nevens, Fréderic Duprez, Katrien Bonte, Philippe Deron, Wouter Huvenne, Annouschka Laenen, Wilfried De Neve, Sandra Nuyts
PURPOSE/OBJECTIVE: The benefit of upfront neck dissection (ND) in locally advanced head and neck squamous cell carcinoma (HNSCC) treated with primary (chemo-) radiotherapy (R(C)T) is debated. Therefore, we retrospectively compared disease control and toxicity between patients who were treated with and without upfront ND followed by R(C)T. MATERIAL/METHODS: Two-hundred sixty-four consecutive patients with HNSCC without distant metastases at diagnosis and with lymph node stage N2-N3 were included in 2 centers...
July 26, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28755256/rectal-sparing-approach-after-preoperative-radio-and-or-chemotherapy-resarch-in-patients-with-rectal-cancer-a-multicentre-observational-study
#15
A Barina, A De Paoli, P Delrio, M Guerrieri, A Muratore, F Bianco, D Vespa, C Asteria, E Morpurgo, A Restivo, C Coco, U Pace, C Belluco, C Aschele, S Lonardi, V Valentini, G Mantello, I Maretto, P Del Bianco, A Perin, S Pucciarelli
BACKGROUND: Rectum-sparing approaches appear to be appropriate in rectal cancer patients with a major (mCR) or complete clinical response (cCR) after neoadjuvant therapy. The aim of the present study is to evaluate the effectiveness of rectum-sparing approaches at 2 years after the completion of neoadjuvant treatment. STUDY DESIGN: Patients with rectal adenocarcinoma eligible to receive neoadjuvant therapy will be prospectively enrolled. Patients will be restaged 7-8 weeks after the completion of neoadjuvant therapy and those with mCR (defined as absence of mass, small mucosal irregularity no more than 2 cm in diameter at endoscopy and no metastatic nodes at MRI) or cCR will be enrolled in the trial...
July 28, 2017: Techniques in Coloproctology
https://www.readbyqxmd.com/read/28755240/bridging-to-liver-transplantation-in-hcc-patients
#16
REVIEW
Dagmar Kollmann, Nazia Selzner, Markus Selzner
BACKGROUND: Liver transplantation (LT) is the only cure for patients diagnosed with unresectable hepatocellular carcinoma (HCC), and HCC has become the leading indication for LT in the USA. The shortage of liver grafts results in a significant waiting time for LT with the risk of tumour progression. Treating HCCs during the waiting time prior to transplantation (bridging therapy) is an attractive strategy to reduce the risk of exceeding the tumour criteria for transplantation. Studies on bridging therapy are heterogenous and due to ethical issues, mostly of retrospective design...
July 28, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28754668/transglutaminase-2-inhibition-reverses-mesenchymal-transdifferentiation-of-glioma-stem-cells-by-regulating-c-ebp%C3%AE-signaling
#17
Jinlong Yin, Young Taek Oh, Jeong-Yub Kim, Sung Soo Kim, Eunji Choi, Tae Hoon Kim, Jun Hee Hong, Nakho Chang, Hee Jin Cho, Jason Kyungha Sa, Jeong Cheol Kim, Hyung Joon Kwon, Saewhan Park, Weiwei Lin, Ichiro Nakano, Ho-Shin Gwak, Heon Yoo, Seung-Hoon Lee, Jeongwu Lee, Jong Heon Kim, Soo-Youl Kim, Do-Hyun Nam, Myung-Jin Park, Jong Bae Park
Necrosis is a hallmark of glioblastoma (GBM) and is responsible for poor prognosis and resistance to conventional therapies. However, the molecular mechanisms underlying necrotic microenvironment-induced malignancy of GBM have not been elucidated. Here, we report that transglutaminase 2 (TGM2) is upregulated in the perinecrotic region of GBM and triggered mesenchymal (MES) transdifferentiation of glioma stem cells (GSC) by regulating master transcription factors (TF), such as C/EBPβ, TAZ, and STAT3. TGM2 expression was induced by macrophages/microglia-derived cytokines via NFκB activation and further degraded DNA damage-inducible transcript 3 (GADD153) to induce C/EBPβ expression, resulting in expression of the MES transcriptome...
July 28, 2017: Cancer Research
https://www.readbyqxmd.com/read/28750525/wireless-passive-stimulation-of-engineered-cardiac-tissues
#18
Shiyi Liu, Ali Navaei, Xueling Meng, Mehdi Nikkhah, Junseok Chae
We present a battery-free radio frequency (RF) microwave activated wireless stimulator, 25 × 42 × 1.6 mm(3) on a flexible substrate, featuring high current delivery, up to 60 mA, to stimulate engineered cardiac tissues. An external antenna shines 2.4 GHz microwave, which is modulated by an inverted pulse to directly control the stimulating waveform, to the wireless passive stimulator. The stimulator is equipped with an on-board antenna, multistage diode multipliers, and a control transistor. Rat cardiomyocytes, seeded on electrically conductive gelatin-based hydrogels, demonstrate synchronous contractions and Ca(2+) transients immediately upon stimulation...
July 28, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28743201/pharyngotomy-in-head-and-neck-squamous-cell-carcinoma-functional-and-oncological-aspects
#19
Carolin Remmert, Naglaa Mansour, Benedikt Hofauer, Elias Q Scherer, Murat Bas, Henning Bier, Andreas Knopf
BACKGROUND: Head and Neck Surgery constantly has to oppose non-invasive organ preservation methods and therefore should be evaluated especially with regard to clinical and functional outcome. We will discuss the role of pharyngotomy in the treatment of HNSCC. METHODS: Seventy-three patients with carcinoma of the oral cavity, oro-/hypopharynx and supraglottis underwent lateral/median pharyngotomy. Functional and oncological parameters were retrospectively assessed and set into clinical context...
July 25, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28735518/the-possible-prognostic-role-of-histone-deacetylase-and-transforming-growth-factor-%C3%AE-smad-signaling-in-high-grade-gliomas-treated-by-radio-chemotherapy-a-preliminary-immunohistochemical-study
#20
Roberta Sferra, Simona Pompili, Claudio Festuccia, Francesco Marampon, Giovanni L Gravina, Luca Ventura, Ernesto Di Cesare, Sara Cicchinelli, Eugenio Gaudio, Antonella Vetuschi
Glioblastoma (GBM) is the most common and aggressive tumor of the central nervous system. Unfortunately, patients affected by this disease have a very poor prognosis, due to high level of invasiveness and resistance to standard therapies. Although the molecular profile of GBM has been extensively investigated, the events responsible for its pathogenesis and progression remain largely unknown. Histone Deacetylases (HDAC) dependent epigenetic modifications and transforming growth factor (TGF)-β/Smad pathway seem to play an important role in GBM tumorigenesis, resistance to common therapies and poor clinical outcome...
May 16, 2017: European Journal of Histochemistry: EJH
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