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Iodine-131

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https://www.readbyqxmd.com/read/29217738/radiolabeled-4-fluoro-3-iodobenzyl-guanidine-improves-imaging-and-targeted-radionuclide-therapy-of-norepinephrine-transporter-expressing-tumors
#1
Aiko Yamaguchi, Hirofumi Hanaoka, Tetsuya Higuchi, Yoshito Tsushima
Fluorine-18 (18F)/Iodine-131 (131I)-labeled (4-Fluoro-3-iodobenzyl)guanidine (FIBG) have been a promising yet unattainable derivative of radioiodine-labeled meta-iodobenzylguanidine (MIBG), because of the complex radiofluorination method. Here, we proposed a 2-step radiosynthetic method for 18F-FIBG, and evaluated the diagnostic and therapeutic potential of 18F-FIBG and 131I-FIBG in a pheochromocytoma model (PC-12). Methods:18F-FIBG was prepared from a (mesityl)(aryl)iodonium salt precursor in the presence of a copper-catalyst...
December 7, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29190950/therapeutic-response-and-long-term-outcome-of-differentiated-thyroid-cancer-with-pulmonary-metastases-treated-by-radioiodine-therapy
#2
Jing Yang, Meng Liang, Yingying Jia, Li Wang, Lin Lin, Jianhua Geng, Shengzu Chen, Ye-Xiong Li, Rong Zheng
Objective: To explore the therapeutic response (TR) and long-term outcomes of iodine-131 (I-131) treatment for patients with differentiated thyroid cancer and pulmonary metastases (DTC+PM), as well as the association between the assessment of TR and long-term outcomes. Methods: This retrospective study comprised 151 DTC+PM patients. TR was evaluated by changes in serum levels of thyroglobulin, anatomic imaging and iodine uptake in pulmonary nodules; logistic regression was applied to identify predictors...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29177256/errors-in-the-absorbed-and-the-administered-131i-therapeutic-dose-in-patients-with-graves-disease-a-suggested-more-precise-technique
#3
Yangchun Chen, Jincheng Huang, Yuehui Wang, Sipei Xie, Fang He
OBJECTIVE: The aim of this study was to evaluate the relative error (RE) in the thyroid absorbed dose (TD) of iodine-131 (131I) in patients with Graves' disease comparing the simplified Quimby-Marinelli-Hine formula method (sQMHF) and the Standard Operational Procedures for dosimetry (SOPD) recommended by the European Association of Nuclear Medicine. PATIENTS AND METHODS: This study included 45 patients with Graves' disease 12 men and 33 women; age 44.1±12.8 years...
November 27, 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29165687/investigation-of-the-relationship-between-radiation-dose-and-gene-mutations-and-fusions-in-post-chernobyl-thyroid-cancer
#4
Alexey A Efanov, Alina V Brenner, Tetiana I Bogdanova, Lindsey M Kelly, Pengyuan Liu, Mark P Little, Abigail I Wald, Maureen Hatch, Liudmyla Y Zurnadzy, Marina N Nikiforova, Vladimir Drozdovitch, Kiyohiko Mabuchi, Mykola D Tronko, Stephen J Chanock, Yuri E Nikiforov
Background: Exposure to ionizing radiation during childhood is a well-established risk factor for thyroid cancer. However, the genetic mechanisms of radiation-associated carcinogenesis remain not fully understood. Methods: In this study, we used targeted next-generation sequencing and RNA-Seq to study 65 papillary thyroid cancers (PTCs) from patients in the Ukrainian-American cohort with measurement-based iodine-131 (I-131) thyroid doses received as a result of the Chernobyl accident...
November 18, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/29162424/injectable-hydrogels-for-localized-chemo-and-radio-therapy-in-brain-tumors
#5
Pilar de la Puente, Nicole Fettig, Micah J Luderer, Abbey Jin, Shruti Shah, Barbara Muz, Vaishali Kapoor, Sreekrishna M Goddu, Noha Nabil Salama, Christina Tsien, Dinesh Thotala, Kooresh Shoghi, Buck Rogers, Abdel Kareem Azab
PURPOSE: Overall survival of patients with newly diagnosed glioblastoma (GBM) remains dismal at 16 months with state-of-the-art treatment that includes surgical resection, radiation and chemotherapy. GBM tumors are highly heterogeneous and mechanisms for overcoming tumor resistance have not yet fully been elucidated. An injectable chitosan hydrogel capable of releasing chemotherapy (Temozolomide, TMZ) while retaining radioactive isotopes agents (Iodine, (131)I) was used as a vehicle for localized radiation and chemotherapy, within the surgical cavity...
November 18, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29145639/assessment-of-intake-according-to-ideas-guidance-case-study
#6
A Bitar, M Maghrabi
Estimation of radiation intake and internal dose can be carried out through direct or indirect measurements during routine or special monitoring program. In case of Iodine-131 contamination, direct measurements, such as thyroid counting, are fast and efficient to give quick results. Generally, the calculation method implements suitable values for known parameters whereas default values are used if no information is available. However, in view to avoid significant discrepancies, IDEAS guidelines put in route a comprehensive method to evaluate the monitoring data for one and different types of monitoring...
November 14, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29135721/clinical-outcomes-and-prognostic-factors-of-radioiodine-ablation-therapy-for-lymph-node-metastases-from-papillary-thyroid-carcinoma
#7
Xinyu Wu, Hao Gu, Yongju Gao, Bo Li, Ruitai Fan
OBJECTIVE: A total of 118 patients with papillary thyroid carcinoma treated with radioactive iodine for lymph node metastases were analyzed retrospectively between August 2008 and June 2014. We describe the clinical course of these patients and focus on factors associated with lymph node metastases response to iodine-131 (I) treatment. PATIENTS AND METHODS: A total of 118 postoperative papillary thyroid carcinoma patients who underwent I treatment with lymph nodes as the only site of metastasis on whole-body scan (I Rx-WBS) and single-photon emission computed tomography-computed tomography (SPECT-CT) were enrolled...
November 10, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29119458/efficacy-of-radioiodine-therapy-for-treating-20-patients-with-pulmonary-metastases-from-differentiated-thyroid-cancer-and-a-meta-analysis-of-the-current-literature
#8
X Zhang, D-S Liu, Z-S Luan, F Zhang, X-H Liu, W Zhou, S-F Zhong, H Lai
BACKGROUND: Radioiodine therapy (RAI) after total or near-total thyroidectomy is a recommended treatment for patients with pulmonary metastasis from differentiated thyroid cancer (DTC). However, the total effective rate of iodine-131 therapy remains controversial. This study aimed to determine the efficacy of RAI for treating patients with pulmonary metastasis from DTC, and to identify independent predictors of its efficacy. METHODS: We conducted a retrospective study to evaluate 20 patients with pulmonary metastasis from DTC who underwent RAI at our center at first and performed a meta-analysis to evaluate relevant literature regarding the overall efficacy of RAI and subgroup-specific efficacies subsequently...
November 8, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/29113356/prediction-of-thyroidal-131-i-effective-half-life-in-patients-with-graves-disease
#9
Ruiguo Zhang, Guizhi Zhang, Renfei Wang, Jian Tan, Yajing He, Zhaowei Meng
Purpose: Calculation of effective thyroidal half-life (Teff) of iodine-131((131)I) is cumbersome and tedious. The aim of this study was to investigate factors that could be used to predict Teff and to develop a Teff prediction model in Graves' disease patients. Methods: A total of 256 patients with GD were involved in this study. We investigated the influences of age, gender, disease duration, thyroid weight, antithyroid drugs, antithyroid drugs discontinuation period (ADP), thyroid function indexes, thyroid autoantibodies, thyroid-stimulating hormone receptor antibody (TRAb) level and radioactive iodine uptake (RAIU) values before (131)I therapy on Teff, applying univariate and multivariate analyses...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29101822/internal-dosimetry-of-inhaled-iodine-131
#10
Mitra Kiani Nasab, Laleh Rafat Motavalli, Hashem Miri Hakimabad
In this paper, the dose assessment for the iodine inhalation exposure in 19 aerosol sizes and three gas/vapor forms at three levels of thyroid uptake, was performed. Two different modes of work (light vs. heavy) and breathing (nose vs. mouth) for aerosol inhalation were investigated. In order to calculate the cumulated activities per unit of inhaled activity, a combined model which included the latest models of both human respiratory and alimentary tract was developed. The S values for (131)I were computed based on the ICRP adult male and female reference voxel phantoms by the Monte Carlo method...
November 1, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/29071241/total-thyroidectomy-for-thyroid-cancer-followed-by-thyroid-storm-due-to-thyrotropin-receptor-antibody-stimulation-of-metastatic-thyroid-tissue
#11
Lars Folkestad, Frans Brandt, Thomas Brix, Marianne Vogsen, Lars Bastholt, Peter Grupe, Jeanette Krogh Petersen, Laszlo Hegedüs
BACKGROUND: Graves disease (GD) is an autoimmune condition characterized by the presence of antibodies against the thyrotropin receptor (TRAB), which stimulate the thyroid gland to produce excess thyroid hormone. Theoretically, TRAB could stimulate highly differentiated thyroid cancer tissue and/or metastases to produce thyroid hormone. CASE: A 68-year-old male, with weight loss and palpitations, was diagnosed with thyrotoxicosis. A later MRI, due to persistent shoulder pain, revealed multiple bone metastases...
September 2017: European Thyroid Journal
https://www.readbyqxmd.com/read/29069013/incidentally-polycystic-kidney-disease-identified-by-spect-ct-with-post-therapy-radioiodine-scintigraphy-in-a-patient-with-differentiated-thyroid-carcinoma-a-case-report
#12
Yan-Xia Mi, Xin Sui, Jian-Min Huang, Ling-Ge Wei, Peng Xie
RATIONALE: Post-therapy or diagnostic whole-body radioiodine scintigraphy is widely employed to evaluate the residual, recurrence, or metastases of differentiated thyroid carcinoma because of the high sensitivity and accuracy. However, it has pitfalls. PATIENT CONCERNS: We described a 63-year-old male with a history of papillary thyroid carcinoma who was referred for iodine-131 ablation therapy. The post-therapy iodine-131 whole-body images demonstrated abnormal increased uptake of the tracer in the regions of bilateral upper abdomen...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29066479/eosinophil-cationic-protein-in-patients-with-differentiated-thyroid-cancer-treated-with-radioactive-iodine-131
#13
Snezana Zivancevic-Simonovic, Olgica Mihaljevic, Irena Kostic, Nevenka Ilic, Dusan Mihajlovic, Dragan Vasiljevic, Ljiljana Mijatovic-Teodorovic, Svetlana Miletic-Drakulic, Miodrag Colic
Published data indicate the involvement of eosinophil granulocytes and eosinophil cationic protein (ECP) in tumor defense. The aim of this study was to analyze serum ECP concentrations in patients with differentiated thyroid cancer (DTC) before, 3 days and 7 days after radioactive iodine (131-I) therapy. Association of ECP concentrations with histological type of tumor, stage of disease and/or levels of selected T-helper 2 (Th2) cytokines was examined. The study population included 17 DTC patients and 10 control subjects...
September 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/29055256/radiotracer-investigation-and-modeling-of-an-activated-sludge-system-in-a-pulp-and-paper-industry
#14
Metali Sarkar, Vikas Kumar Sangal, Vijay Kumar Sharma, Jitendra Samantray, Haripada Bhunia, Pramod Kumar Bajpai, Anil Kumar, Anil K Naithani, Harish Jagat Pant
A radiotracer investigation was carried out in an activated sludge process (ASP) system of an effluent treatment plant in a pulp and paper industry. The system consists of an aeration tank and a secondary clarifier connected in series. The primary objective of the investigation was to measure mean hydraulic retention times (MHRTs) of wastewater and investigate the hydraulic performance of the ASP. Residence time distributions (RTD) of the wastewater were measured in an aeration tank and a secondary clarifier of the system using Iodine-131 as a radiotracer...
October 10, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28966960/seeking-optimal-management-for-radioactive-iodine-therapy-induced-adverse-effects
#15
REVIEW
Andreas Charalambous
Radioactive iodine therapy (RAIT) is one of the important treatment modalities in the management of differentiated thyroid cancer (DTC). RAIT with iodine-131 has long been used in the management of DTC for the ablation of residual thyroid or treatment of its metastases. Despite being reasonably safe, radioiodine therapy is not always without side effects. Even relatively low administered activities of RAIT used for remnant ablation have been associated with the more clinically significant side effects of sialadenitis, xerostomia, salivary gland pain and swelling, dry eyes, excessive tearing, or alterations in taste in as many as 25% of patients...
October 2017: Asia-Pacific Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28883260/a-case-of-metastatic-follicular-thyroid-carcinoma-complicated-with-graves-disease-after-total-thyroidectomy
#16
Mariko Aoyama, Hiromitsu Takizawa, Mitsuhiro Tsuboi, Yasushi Nakagawa, Akira Tangoku
Thyroid cancer and Graves' disease may present simultaneously in one patient. The incidence of the development of hyperthyroidism from metastatic differentiated thyroid carcinoma is rare. We herein report a case of metastatic follicular carcinoma complicated with Graves' disease after total thyroidectomy. A 57-year-old woman underwent right hemithyroidectomy for follicular carcinoma. Metastatic lesions appeared in the lungs and skull two years after the first surgery, and remnant thyroidectomy was performed for radioactive iodine-131 (RAI) therapy, during which the TSH receptor antibody (TRAb) was found to be negative...
September 5, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28867113/precision-medicine-and-pet-computed-tomography-in-pediatric-malignancies
#17
REVIEW
Yasemin Sanli, Ebru Yilmaz, Rathan M Subramaniam
Fluorine-18 fluorodeoxyglucose ((18)F-FDG) PET-computed tomography (CT) plays a significant role in diagnosis, staging, therapy selection, and therapy assessment of multiple pediatric malignancies and facilitating precision medicine delivery in pediatric patients. In patients with Hodgkin lymphoma, interim fludeoxyglucose (18)F-FDG PET/CT is highly sensitive and specific for predicting survival and multiple trials with FDG PET/CT-based adaptive therapies are currently ongoing. It is superior to iodine-131 metaiodobenzylguanidine ((131)I-MIBG) scintigraphy and bone scintigraphy for detecting metastases in neuroblastoma patients and sarcoma patients...
October 2017: PET Clinics
https://www.readbyqxmd.com/read/28856527/neonatal-outcomes-following-exposure-in-utero-to-fallout-from-chernobyl
#18
Maureen Hatch, Mark P Little, Alina V Brenner, Elizabeth K Cahoon, Valery Tereshchenko, Ludmyla Chaikovska, Igor Pasteur, Ilya Likhtarov, Andre Bouville, Victor Shpak, Olena Bolshova, Galyna Zamotayeva, Katherine Grantz, Liping Sun, Kiyohiko Mabuchi, Paul Albert, Mykola Tronko
Iodine 131 (I-131), the principal component of nuclear fallout from the Chernobyl accident, concentrates in the thyroid gland and may pose risks to fetal development. To evaluate this, neonatal outcomes following the accident in April of 1986 were investigated in a cohort of 2582 in utero-exposed individuals from northern Ukraine for whom estimates of fetal thyroid I-131 dose were available. We carried out a retrospective review of cohort members' prenatal, delivery and newborn records. The relationships of dose with neonatal anthropometrics and gestational length were modeled via linear regression with adjustment for potentially confounding variables...
August 30, 2017: European Journal of Epidemiology
https://www.readbyqxmd.com/read/28834790/comparison-of-treatment-efficacy-1-and-2-years-after-thyroid-remnant-ablation-with-1110-versus-5550%C3%A2-mbq-of-iodine-131-in-patients-with-intermediate-risk-differentiated-thyroid-cancer
#19
Atena Aghaei, Narjess Ayati, Susan Shafiei, Bita Abbasi, S Rasoul Zakavi
BACKGROUND: Radioiodine ablation may be associated with improved survival in patients with intermediate-risk follicular cell differentiated thyroid cancer (FCDTC). The aim of this study was to compare ablation efficacy of 1110 versus 5500 MBq of iodine-131 (I) in FCDTC patients with intermediate risk. METHODS: Thirty-nine patients with intermediate-risk FCDTC (T3N0, T1-2N1b and T1-3N1a) were treated with 1110 MBq of I and compared with 43 age-matched and sex-matched patients who received 5550 MBq of I...
November 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28811561/analysis-of-risk-factors-of-rapid-thyroidal-radioiodine-131-turnover-in-graves-disease-patients
#20
Ruiguo Zhang, Jian Tan, Renfei Wang, Guizhi Zhang, Qiang Jia, Zhaowei Meng, Yueqian Zhang
Rapid iodine-131((131)I) turnover in the thyroid gland is an important feature of Graves' disease (GD) and also a strong predictor of radioiodine therapy failure. The aim of this study was to explore the predictors of rapid (131)I turnover. The clinical data on 2543 patients were retrospectively reviewed. Patients were divided into 2 groups depending on present or absent with rapid (131)I turnover defined as a 4-hour to 24-hour (131)I uptake ratio of ≥1. Overall, 590 cases (23.2%) had a rapid (131)I turnover...
August 15, 2017: Scientific Reports
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