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Iodine-131

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https://www.readbyqxmd.com/read/27918920/highly-efficient-method-for-production-of-radioactive-silver-seed-cores-for-brachytherapy
#1
Roberta Mansini Cardoso, Carla Daruich de Souza, Maria Elisa Chuery Martins Rostelato, Koiti Araki
A simple and highly efficient (shorter reaction time and almost no rework) method for production of iodine based radioactive silver seed cores for brachytherapy is described. The method allows almost quantitative deposition of iodine-131 on dozens of silver substrates at once, with even distribution of activity per core and insignificant amounts of liquid and solid radioactive wastes, allowing the fabrication of cheaper radioactive iodine seeds for brachytherapy.
December 1, 2016: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/27893453/a-geographical-study-of-thyroid-cancer-incidence-in-north-west-england-following-the-windscale-nuclear-reactor-fire-of-1957
#2
Richard J Q McNally, Richard Wakeford, Peter W James, Nermine O Basta, Robert D Alston, Mark S Pearce, Alex T Elliott
The Windscale nuclear reactor fire at Sellafield, United Kingdom, in October 1957 led to an uncontrolled release of iodine-131 (radioactive half-life, 8 d) into the atmosphere. Contamination from the accident was most pronounced in the counties of Cumbria and Lancashire, north-west England. Radioiodine concentrates in the thyroid gland producing an excess risk of thyroid cancer, notably among those exposed as children, which persists into later life. For an initial investigation of thyroid cancer incidence in north-west England, data were obtained on cases of thyroid cancer among people born during 1929-1973 and diagnosed during 1974-2012 while resident in England, together with corresponding populations...
November 28, 2016: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/27856921/lenvatinib-a-multikinase-inhibitor-for-radioiodine-refractory-differentiated-thyroid-cancer
#3
REVIEW
Yvonne Hewett, Subash Ghimire, Bilal Farooqi, Binay K Shah
Lenvatinib, an oral multikinase inhibitor, was approved by the US Food and Drug Administration in February 2015. In a pivotal phase III study of 392 patients with progressive radioiodine-refractory thyroid cancer, the overall response rate of patients receiving lenvatinib was 64.8%, with complete response in four patients. The median progression-free survival was 18.3 months in the lenvatinib arm versus 3.6 months in patients receiving placebo. Median overall survival was not reached in either arm. Lenvatinib is a promising new treatment for patients with radioiodine (iodine-131)-refractory differentiated thyroid cancer...
November 17, 2016: Journal of Oncology Pharmacy Practice
https://www.readbyqxmd.com/read/27853073/feminizing-adrenocortical-carcinoma-with-distinct-histopathological-findings
#4
Masako Hatano, Yasuhiro Takenaka, Ikuo Inoue, Keiko Homma, Tomonobu Hasegawa, Hisanobu Sasano, Takuya Awata, Shigehiro Katayama
We herein present a 60-year-old man with adrenocortical carcinoma who had gynecomastia. An endocrinological examination revealed increased levels of serum estradiol and dehydroepiandrosterone-sulfate (DHEA-S) and reduced levels of free testosterone. Magnetic resonance imaging showed an adrenal tumor with heterogeneous intensity. Iodine-131 adosterol scintigraphy showed an increased uptake at the same site. Because feminizing adrenocortical carcinoma was suspected, right adrenalectomy was performed; the pathological diagnosis was adrenocortical carcinoma...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27824968/an-intrapericardial-ectopic-thyroid-mimicking-metastasis-in-a-patient-with-papillary-thyroid-cancer-localization-differential-diagnosis-by-18-f-fdg-pet-ct-and-ablation-by-131-i
#5
Seol Hoon Park, Minjung Seo, Tae Young Park, Seong Nam-Goong
We report a very rare case of incidental intrapericardial thyroid in a papillary thyroid cancer patient. Post ablation scan revealed iodine-131 ((131)I) uptake in the mid-chest. Fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography ((18)F-FDG PET/CT) was performed and showed a (18)F-FDG avid lesion between the right atrium and the ascending aorta, (which was) shown tube an ectopic thyroid and not metastasis. The lesion disappeared on a 6 month follow-up (123)I whole body scan while serum thyroglobulin was negative...
November 8, 2016: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/27824959/risk-factors-and-stratification-for-recurrence-of-patients-with-differentiated-thyroid-cancer-elevated-thyroglobulin-and-negative-i-131-whole-body-scan-by-restaging-18-f-fdg-pet-ct
#6
Kursat Okuyucu, Semra Ince, Engin Alagoz, Ozdes Emer, Huseyin San, Elif Balkan, Aslı Ayan, Coskun Meric, Cem Haymana, Cengizhan Acıkel, Bengul Gunalp, Alper Ozgur Karacalioglu, Nuri Arslan
OBJECTIVE: In nearly 20%-30% of patients with differentiated thyroid carcinoma (DTC) relapse and 7% of them die during the next 10 years after initial diagnosis. In 10%-30% of patients with DTC after ablation therapy during the follow-up show a negative iodine-131 ((131)I) whole-body screening test ((131)I WBS) and increased serum thyroglobulin (Tg) level. Loss of ability of DTC metastatic lesions to trap (131)I is associated with pure survival and often aggressive disease. Several studies have shown that in DTC cases non trapping (131)I, fluorine-18-fluorodeoxyglucose positron emission tomography ((18)F-FDG PET) can detect recurrence or metastases with high sensitivity (80%-90%)...
November 8, 2016: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/27813621/incidental-thyroid-99mtc-mdp-uptake-in-a-patient-affected-by-differentiated-thyroid-cancer
#7
Domenico Albano, Gian Carlo Magri, Giorgio Treglia, Francesco Bertagna
We report a case of incidental uptake of 99mTc-methylene diphosphonate in the thyroid in a 62-year-old female with a history of breast cancer treated with quadrantectomy, chemotherapy and radiotherapy, who underwent total-body-bone scintigraphy during follow up. Planar scintigraphy was followed by neck SPECT-CT that demonstrated an area of increased tracer uptake in the neck at the left lobe of the thyroid. Neck ultrasonography showed a nodule corresponding to SPECT-CT finding and the ultrasound-guided fine needle aspiration documented the presence of papillary carcinoma...
2016: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/27807784/public-exposure-to-radioactivity-levels-in-the-lebanese-environment
#8
O El Samad, R Baydoun, M Aoun, W Zaidan, H El Jeaid
In the framework of a National Environmental Radiation Survey Program, a total of 950 samples were collected and analyzed over 7 years. The program covers different compartment of Lebanese environment, rivers, wells, marine samples, soil, and foodstuff. Air was monitored continuously through a radiation early warning network system. Data collected from 2009 to 2015 are presented in this work. Gross alpha/gross beta values in well samples were below the guidance levels stated by the WHO. Cesium-137 was detected in milk samples, whey, and jam...
November 2, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27802029/an-integrative-folate-based-metal-complex-nanotube-as-a-potent-antitumor-nanomedicine-as-well-as-an-efficient-tumor-targeted-drug-carrier
#9
Lixiang Liu, Bingxia Li, Qiyan Wang, Zhipeng Dong, Hongmei Li, Qiaomei Jin, Hao Hong, Jian Zhang, Yue Wang
Metal-organic complexes (MOCs) are emerging developing functional materials, the different categories of metal ions and organic biomolecules provide great possibilities for the morphologies, sizes and properties of the products. Enlightened by the previous works of folate-nickel nanotubes (FA-Ni NTs), herein, a series of metal ions are tested to coordinate with folate (FA) by solvothermal method, among which folate-cobalt (2+) complex is formed to be a scaffold for the nanotube with the length of 150-500 nm and inner diameter of 6-11 nm, while the other metal ions fail...
November 1, 2016: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/27793633/use-of-177-lu-dotatate-in-the-treatment-of-iodine-refractory-thyroid-carcinomas
#10
P Oliván-Sasot, M Falgás-Lacueva, J García-Sánchez, V Vera-Pinto, C Olivas-Arroyo, P Bello-Arques
In a patient with a differentiated thyroid cancer the standard treatment protocol to be followed is surgery, ablation of thyroid remnants with (131)Iodine ((131)I), and TSH suppression. However, the treatment with (131)I is not effective in some cases, and it no longer becomes a therapeutic option due to cell de-differentiation with loss of (131)I uptake. Systemic treatment can be used as other options, although patients are not always responsive; thus, the disease may progress and therapeutic options may run out...
October 25, 2016: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/27761621/radioiodine-the-success-story-of-nuclear-medicine-75th-anniversary-of-the-first-use-of-iodine-131-in-humans
#11
V Ralph McCready
No abstract text is available yet for this article.
October 19, 2016: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27709475/differentiated-thyroid-carcinoma-incremental-diagnostic-value-of-131-i-spect-ct-over-planar-whole-body-scan-after-radioiodine-therapy
#12
Valentina Zilioli, Alessia Peli, Maria Beatrice Panarotto, Giancarlo Magri, Ahmed Alkraisheh, Christiane Wiefels, Carlo Rodella, Raffaele Giubbini
The purpose of this prospective study was to determine the incremental diagnostic value of single photon emission computed tomography/computed tomography with iodine-131 over planar whole body scan in the staging of patients with differentiated thyroid carcinoma. A total of 365 patients (270 female, 95 male) with differentiated thyroid carcinoma were treated with radioiodine therapy for thyroid remnant ablation with radical intent after thyroidectomy between January 2013 and November 2014. In addition to planar whole body scan, single photon emission computed tomography/computed tomography of neck and chest were performed...
September 29, 2016: Endocrine
https://www.readbyqxmd.com/read/27651737/gastrointestinal-side-effects-of-the-radioiodine-therapy-for-the-patients-with-differentiated-thyroid-carcinoma-two-days-after-prescription
#13
Mehran Pashnehsaz, Abbas Takavar, Sina Izadyar, Seyed Salman Zakariaee, Mahmoud Mahmoudi, Reza Paydar, Parham Geramifar
Iodine-131 (I-131) therapy is one of the conventional approaches in the treatment of patients with differentiated thyroid carcinoma (DTC). The radioiodine agents also accumulate in the other organs that cause pain and damage to the patients. Radioiodine therapy is associated with various gastrointestinal (GI) toxicities. In this study, GI side effects of the radioiodine therapy were investigated. GI toxicities of the radioiodine therapy were studied in 137 patients with histologically proven DTC in Jun-Nov 2014...
September 2016: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/27621604/comparative-clinicopathological-and-outcome-analysis-of-differentiated-thyroid-cancer-in-saudi-patients-aged-below-60-years-and-above-60-years
#14
Khalid Hussain Al-Qahtani, Mutahir A Tunio, Mushabbab Al Asiri, Yasser Bayoumi, Ali Balbaid, Naji J Aljohani, Hanadi Fatani
INTRODUCTION: The aim of this study was to evaluate the treatment outcomes of differentiated thyroid cancer in Saudi patients aged above 60 years. MATERIALS AND METHODS: Comparative analysis was performed in 252 patients aged 46-60 years (Group A) and 118 patients aged above 60 years (Group B), who had thyroidectomy, radioactive iodine-131, and thyroid-stimulating hormone suppression therapy between July 2000 and December 2012. Different clinicopathological features, treatment, complications, disease-free survival, and overall survival rates were compared...
2016: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/27618325/current-concepts-in-the-molecular-genetics-and-management-of-thyroid-cancer-an-update-for-radiologists
#15
Tatiana Kelil, Abhishek R Keraliya, Stephanie A Howard, Katherine M Krajewski, Marta Braschi-Amirfarzan, Jason L Hornick, Nikhil H Ramaiya, Sree Harsha Tirumani
Substantial improvement in the understanding of the oncogenic pathways in thyroid cancer has led to identification of specific molecular alterations, including mutations of BRAF and RET in papillary thyroid cancer, mutation of RAS and rearrangement of PPARG in follicular thyroid cancer, mutation of RET in medullary thyroid cancer, and mutations of TP53 and in the phosphatidylinositol 3'-kinase (PI3K)/AKT1 pathway in anaplastic thyroid cancer. Ultrasonography (US) and US-guided biopsy remain cornerstones in the initial workup of thyroid cancer...
September 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27614988/multitargeted-kinase-inhibition-in-metastatic-differentiated-radioiodine-refractory-thyroid-cancer-a-look-at-new-therapeutic-options-for-a-rare-disease
#16
Katharina Mischler, Stefan Kneifel, Richard Cathomas
BACKGROUND: Metastatic differentiated thyroid cancer (DTC) is a rare disease that is in the first line treated with iodine-131 radioisotope therapy. Until recently, options were very limited in the case of progressive radioactive-iodine (RAI)-refractory disease. Based on new study results, tyrosine kinase inhibitors (TKIs) have attracted attention. The TKI sorafenib demonstrated significantly improved progression-free survival (PFS) in a phase III trial. Recent data from another phase III trial showed that the TKI lenvatinib achieved high response rates and a large improvement in PFS in metastatic RAI-refractory DTC patients in the first-line setting and after 1 prior line of TKI...
2016: Oncology Research and Treatment
https://www.readbyqxmd.com/read/27531898/combretastatin-a4-phosphate-improves-the-distribution-and-antitumor-efficacy-of-albumin-bound-paclitaxel-in-w256-breast-carcinoma-model
#17
Meng Gao, Dongjian Zhang, Qiaomei Jin, Cuihua Jiang, Cong Wang, Jindian Li, Fei Peng, Dejian Huang, Jian Zhang, Shaoli Song
Nanomedicine holds great promise for fighting against malignant tumors. However, tumor elevated interstitial fluid pressure (IFP) seriously hinders convective transvascular and interstitial transport of nanomedicines and thus damages its antitumor efficacy. In this study, combretastatin-A4 phosphate (CA4P) was utilized to reduce tumor IFP, and thereby to improve the intratumoral distribution and antitumor efficacy of nanoparticle albumin-bound paclitaxel (nab-paclitaxel). IFP was measured using the wick-in-needle method in tumors growing subcutaneously pretreatment and posttreatment with a single intravenous injection of CA4P...
August 12, 2016: Oncotarget
https://www.readbyqxmd.com/read/27493271/tert-promoter-mutation-predicts-radioiodine-refractory-in-distant-metastatic-differentiated-thyroid-cancer
#18
Xue Yang, Jiao Li, Xiaoyi Li, Zhiyong Liang, Wen Gao, Jun Liang, Shujun Cheng, Yansong Lin
: Telomerase Reverse Transcriptase (TERT) promoter mutation has been reported to be associated with aggressive characteristics in differentiated thyroid cancer (DTC). This study examined the status of TERT promoter mutation in distant metastatic DTC (DM-DTC), and evaluated the correlation between TERT mutation and radioactive iodine-131(RAI) uptake, as well as that between TERT mutation and therapy response. METHODS: TERT promoter and B-Raf proto-oncogene (BRAF) V600E mutation were retrospectively examined in primary tumors of 66 DM-DTC patients...
August 4, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/27461690/what-is-the-role-of-florine-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-imaging-in-well-differentiated-thyroid-cancers-with-negative-iodine-131-scan-high-thyroglobulin-and-normal-anti-thyroglobulin-levels
#19
Rana Kaya Döner, Sait Sager, Fatma Arzu Görtan, Özge Vural Topuz, Reşit Akyel, Betül Vatankulu, Ahmet Baran, Serkan Teksoz, Kerim Sönmezoglu
PURPOSE: This retrospective study aims to assess the cut-off value of thyroglobulin (Tg) levels in nux or metastatic well-differentiated thyroid cancers (DTCs) with normal anti-Tg levels using with fluorodeoxyglucose/positron emission tomography/computed tomography (FDG PET/CT). MATERIALS AND METHODS: We reviewed FDG PET/CT images of 104 patients with well DTC (28 men, 76 women) whose: Iodine-131 (131 I) whole-body scanning was negative but had elevated Tg with normal anti-Tg levels...
April 2016: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/27451110/using-smartphone-as-a-motion-detector-to-collect-time-microenvironment-data-for-estimating-the-inhalation-dose
#20
Tran Xuan Hoi, Huynh Truc Phuong, Nguyen Van Hung
During the production of iodine-131 from neutron irradiated tellurium dioxide by the dry distillation, a considerable amount of (131)I vapor is dispersed to the indoor air. People who routinely work at the production area may result in a significant risk of exposure to chronic intake by inhaled (131)I. This study aims to estimate the inhalation dose for individuals manipulating the (131)I at a radioisotope production. By using an application installed on smartphones, we collected the time-microenvironment data spent by a radiation group during work days in 2015...
September 2016: Applied Radiation and Isotopes
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