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Iodine-131

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https://www.readbyqxmd.com/read/28727659/patient-release-criteria-following-radioactive-iodine-131-treatment-in-the-light-of-international-practice-where-does-south-africa-fit-in
#1
Modisenyane S Mongane, William I D Rae
The release from hospital of patients treated with radioactive iodine-131 (I) remains a controversial issue as a result of the range of guidelines implemented by national regulatory bodies responsible for radiation protection in various countries worldwide. The aim of this study was to review and analyse the literature on patient release criteria (PRC) applied internationally in an attempt to achieve a justifiable approach to setting equivalent criteria in South Africa. In 2016, the South African Department of Health, Directorate: Radiation Control added conditions (numbers 50 and 90), to licences to use radioactive nuclides...
July 19, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28714021/iodine-131-induces-apoptosis-in-human-cardiac-muscle-cells-through-the-p53-bax-caspase-3-and-pidd-caspase-2-t%C3%A2-bid-cytochrome%C3%A2-c-caspase-3-signaling-pathway
#2
Yansheng Wang, Changqing Liu, Jianchun Wang, Yang Zhang, Linlin Chen
The aim of this study was to elucidate the effects of iodine-131 on the induction of apoptosis in human cardiac muscle cells and the underlying molecular mechanisms. We found that iodine-131 reduced cell proliferation, induced apoptosis, induced p53, PIDD, t-BID (mitochondria) protein expression, suppressed cytochrome c (mitochondria) protein expression, and increased Bax protein expression, and promoted caspase-2, -3 and -9 expression levels in human cardiac muscle cells. Meanwhile, si-p53 inhibited the effects of iodine-131 on the reduction in cell proliferation and induction of apoptosis in human cardiac muscle cells through regulation of Bax/cytochrome c/caspase-3 and PIDD/caspase‑2/t-BID/cytochrome c/caspase-3 signaling pathway...
July 13, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28699814/survival-times-for-cats-with-hyperthyroidism-treated-with-a-3-35-mci-iodine-131-dose-a-retrospective-study-of-96-cases
#3
Marie Vagney, Loic Desquilbet, Edouard Reyes-Gomez, Françoise Delisle, Patrick Devauchelle, Maria Isabel Rodriguez-Piñeiro, Dan Rosenberg, Pauline de Fornel-Thibaud
Objectives Radioiodine ((131)I) dose determination using radiotracer kinetic studies or scoring systems, and fixed relatively high (131)I dose (ie, 4 or 5 mCi) administration, are effective and associated with prolonged survival times for hyperthyroid cats. The latter method is less complicated but could expose patients and veterinary personnel to unnecessary levels of radiation. The aim of this study was to retrospectively evaluate the efficacy of a fixed 3.35 mCi (131)I dose for the treatment of 96 hyperthyroid cats with no length estimation for any palpated goitre ⩾20 mm, assess outcome and identify factors associated with survival...
July 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28660918/iodine-131-labeled-transferrin-capped-polypyrrole-nanoparticles-for-tumor-targeted-synergistic-photothermal-radioisotope-therapy
#4
Xuejiao Song, Chao Liang, Liangzhu Feng, Kai Yang, Zhuang Liu
Combining different therapeutic functions within single tumor-targeted nanoscale delivery systems is promising to overcome the limitations of conventional cancer therapies. Herein, transferrin that recognizes transferrin receptors up-regulated on tumor cells is pre-labeled with iodine-131 ((131)I) and then utilized as the stabilizer in the fabrication of polypyrrole (PPy) nanoparticles. The obtained transferrin-capped PPy@Tf-(131)I nanoparticles could be used for tumor-targeted radioisotope therapy (RIT) and photothermal therapy (PTT), by employing beta-emission from (131)I and the intrinsic high near-infrared (NIR) absorbance of PPy, respectively...
June 29, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28651065/the-removal-of-particle-reactive-radionuclides-in-shallow-water-bottom-scavenging-versus-particle-settling-of-iodine-131-and-beryllium-7
#5
Michael P Montenero, Elizabeth K Dilbone, James T Waples
In pelagic waters, the removal of particle-reactive radionuclides is controlled by nuclide sorption to particles and subsequent settling by gravity. However, in shallow nearshore waters, the dominant mechanism of nuclide scavenging is not so clear. Understanding how particle-reactive radionuclides are scavenged from the water column is critical if these tracers are to be used as proxies of particle flux in shallow aquatic systems. In this study, we present evidence that the removal of particle-reactive radionuclides in nearshore and turbulent waters is primarily controlled by bottom scavenging...
June 23, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28622037/inhibition-of-the-akt-mtor-pathway-augments-the-anticancer-effects-of-sorafenib-in-thyroid-cancer
#6
Heqing Yi, Xuemei Ye, Bin Long, Ting Ye, Lijun Zhang, Fengqin Yan, Yang Yang, Linfa Li
BACKGROUND: Sorafenib is a multikinase inhibitor that has been approved for the treatment of patients with advanced (131)iodine ((131)I) refractory differentiated thyroid cancer (DTC). However, the progression-free survival of patients with advanced (131)I refractory DTC is short, and most DTC patients eventually acquire resistance to sorafenib. Therefore, new therapeutic strategies need to be developed. MATERIALS AND METHODS: The thyroid cancer cell lines 8505C and FTC133 were treated with sorafenib in the presence or absence of BEZ235 or small interfering RNA (siRNA) directed against AKT...
June 2017: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28620714/the-outcome-of-i-131-ablation-therapy-for-intermediate-and-high-risk-differentiated-thyroid-cancer-using-a-strict-definition-of-successful-ablation
#7
Ken Watanabe, Mayuki Uchiyama, Kunihiko Fukuda
PURPOSE: This article examines the outcome of radioactive iodine ablation therapy for thyroid cancer in high-risk patients and investigates background factors influencing ablation failure. MATERIALS AND METHODS: We included 91 patients in this retrospective analysis and evaluated the ablation success rate. Successful ablation was defined as the absence of visible iodine-131 (I-131) accumulation in the thyroid bed after whole-body scans and thyroglobulin levels <2 ng/ml in a TSH-stimulated state after ablation...
June 15, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28572231/thyrotoxicosis-investigation-and-management%C3%A2
#8
REVIEW
Jackie Gilbert
Graves' disease (GD) and toxic nodular (TN) goitre account for most cases of thyrotoxicosis associated with hyperthyroidism. Hyperthyroidism is confirmed with measurement of a suppressed serum thyrotropin concentration (TSH) and elevated free thyroid hormones. The three therapeutic options are antithyroid drugs, radioactive iodine and surgery. Thionamides achieve long-term remission in 35% of cases. Many centres administer fixed doses of iodine-131; larger doses result in improved rates of cure at the cost of hypothyroidism...
June 2017: Clinical Medicine: Journal of the Royal College of Physicians of London
https://www.readbyqxmd.com/read/28542643/correction-numerical-simulations-of-atmospheric-dispersion-of-iodine-131-by-different-models
#9
(no author information available yet)
[This corrects the article DOI: 10.1371/journal.pone.0172312.].
2017: PloS One
https://www.readbyqxmd.com/read/28516979/interventional-sialendoscopy-for-radioiodine-induced-sialadenitis-quo-vadis
#10
P Canzi, S Cacciola, P Capaccio, F Pagella, A Occhini, L Pignataro, M Benazzo
Salivary gland toxicity is a common adverse effect of radioactive iodine ((131)I) for the treatment of thyroid cancers with a prevalence ranging from 2% to 67% of the (131)I exposed population. Recently, sialendoscopy has been introduced as an attractive diagnostic and therapeutic tool for management of patients with radioiodine-induced sialadenitis that is unresponsive to standard medical treatments. The objective of the current review was to assess the impact of this procedure on outcomes in patients suffering from radioiodine sialadenitis...
April 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28505591/factors-associated-with-serum-thyroglobulin-in-a-ukrainian-cohort-exposed-to-iodine-131-from-the-accident-at-the-chernobyl-nuclear-plant
#11
Kamau O Peters, Mykola Tronko, Maureen Hatch, Valeriy Oliynyk, Galyna Terekhova, Ruth M Pfeiffer, Victor M Shpak, Robert J McConnell, Vladimir Drozdovitch, Mark P Little, Lydia B Zablotska, Kiyohiko Mabuchi, Alina V Brenner, Elizabeth K Cahoon
BACKGROUND: Serum thyroglobulin (Tg) is associated with the presence of thyroid disease and has been proposed as a biomarker of iodine status. Few studies have examined factors related to serum Tg in populations environmentally exposed to ionizing radiation and living in regions with endemic mild-to-moderate iodine deficiency. METHODS: We screened 10,430 individuals who were living in Ukraine and under 18 years of age at the time of the 1986 Chernobyl Nuclear Power Plant accident for thyroid disease from 2001 to 2003...
July 2017: Environmental Research
https://www.readbyqxmd.com/read/28499805/differentiating-131-i-radiation-sialadenitis-from-autoimmune-sj%C3%A3-gren-syndrome-sialadenitis-case-report
#12
Louis Mandel, Loren Wissner Greene
Radioactive iodine ((131)I) is used effectively for the treatment of differentiated thyroid cancers. Because it is actively secreted by the salivary glands, radiation damage to these glands can occur. Obstructive swellings after mealtime salivary stimulation are common occurrences. Dry mouth is not usually seen if low doses of (131)I are used. A subjective complaint of xerostomia in a patient treated with (131)I 75.8 mCi proved to be related to the simultaneous presence of Sjögren syndrome (SS). Serologic, histologic, scintigraphic, and salivary volume findings and the patient's subjective complaints served to establish the pre-existence of SS...
April 17, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28498337/imaging-of-early-response-to-predict-prognosis-in-the-first-line-management-of-follicular-non-hodgkin-lymphoma-with-iodine-131-rituximab-radioimmunotherapy
#13
Murali Kesavan, Jan Boucek, William MacDonald, Andrew McQuillan, J Harvey Turner
The purpose of this study was to evaluate prediction of prognosis after first-line radioimmunotherapy (RIT) of advanced follicular non-Hodgkin lymphoma (FL), by imaging with fluorine-18-fluorodeoxyglucose positron emission tomography with computed tomography ((18)F-FDG-PET/CT) three months after induction treatment by Iodine-131-rituximab ((131)I-rituximab). Objective response was determined using the Deauville 5-point scale in 68 prospective clinical trial patients. Baseline (18)F-FDG-PET/CT studies were used to calculate total-metabolic-tumor-volume (TMTV)...
May 12, 2017: Diagnostics
https://www.readbyqxmd.com/read/28489758/analysis-of-radioiodine-therapy-and-prognostic-factors-of-differentiated-thyroid-cancer-patients-with-pulmonary-metastasis-an-8-year-retrospective-study
#14
Renfei Wang, Yueqian Zhang, Jian Tan, Guizhi Zhang, Ruiguo Zhang, Wei Zheng, Yajing He
To assess the efficacy of radioiodine therapy (RIT) and investigate the prognostic factors for patients with pulmonary metastasis secondary to differentiated thyroid carcinoma (DTC) through a retrospective study. A total of 80 patients with radioactive iodine-131 (I)-avid pulmonary metastasis from DTC treated with I from 2007 to 2014 at our institution entered the study. Treatment response was mainly measured by two parameters: serum thyroglobulin (Tg) levels and post-therapeutic I whole-body scan (WBS). Treatment variables were assessed for statistical significance using the univariate and multivariate analyses...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28470585/evaluation-of-radioiodinated-1-4-naphthoquinones-as-necrosis-avid-agents-for-rapid-myocardium-necrosis-imaging
#15
Chang Su, Dongjian Zhang, Na Bao, Aiyan Ji, Yuanbo Feng, Li Chen, Yicheng Ni, Jian Zhang, Zhiqi Yin
PURPOSE: Identifying necrotic myocardium in ischemic regions is of great importance for risk stratification and clinical decision-making. However, rapid noninvasive imaging of necrotic myocardium is still challenging. This study sought to evaluate the potential of 1,4-naphthoquinones to rapidly visualize necrotic myocardium and the possible mechanisms of necrosis avidity. PROCEDURES: Six 1,4-naphthoquinones were radiolabeled with iodine-131 and the necrosis avidity was estimated in mouse models with muscular necrosis by gamma counting and autoradiography...
May 3, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28450957/iodine-131-therapy-alters-the-immune-inflammatory-responses-in-the-thyroids-of-patients-with-graves-disease
#16
Wenhua Du, Qingyu Dong, Xiaoting Lu, Xiaomeng Liu, Yueli Wang, Wenxia Li, Zhenyu Pan, Qian Gong, Cuige Liang, Guanqi Gao
The aim of the present study was to evaluate the serum levels of interleukin-6 (IL-6), CXC chemokine ligand-10 (CXCL-10) and intercellular adhesion molecule-l (ICAM-1) in patients with Graves' disease (GD) following iodine-131 ((131)I) therapy. A total of 30 patients with GD participated in the present study. Serum cytokine levels were measured with ELISA, and correlation analyses were performed. Serum levels of IL-6, CXCL-10 and ICAM-1 were significantly higher in patients with GD prior to treatment than those in the control subjects (P<0...
March 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28441828/-clinical-analysis-of-seven-cases-of-pulmonary-malignant-tumors-in-children
#17
D Xu, Z M Chen, W Z Gu, Y S Wang, M X Huang, L F Tang, Y Y Zhang, Y Jiang
Objective: To understand the clinical manifestation, imaging characteristics and outcomes of pulmonary malignant tumors in children. Method: We retrospectively collected information about seven cases of pulmonary malignant tumors in children in our hospital from Jan 2010 to Dec 2016. The information included clinical manifestation, imaging characteristics, pathologic results, and treatment. Result: (1) All the seven patients firstly visited pediatric internal medicine departments. Symptoms included cough (n=6), dyspnea (n=4), fever (n=2), anorexia (n=2), chest tightness (n=1), chest pain (n=1), lameness (n=1), abdominal distension and constipation (n=1)...
April 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28436636/-iodine-131-joint-radio-frequency-ablation-treatment-for-child-with-hyperthyroidism-goiter-one-case-report
#18
Yonghua Chen, Li Liang, Yanlan Fang, Chunlin Wang, Linfa Li, Tian'an Jiang
A 12-year-old girl presented with a history of cervical mass, and one week of throat discomfort and dyspnea. Five years ago, the patient was diagnosed as Hashimoto's thyroiditis and hyperthyroidism; she received antithyroid drug treatment, but the result was not satisfactory. B-ultrasonic showed that the size of thyroid gland was 8.1 cm×3.2 cm in the left and 8.2 cm×4.8 cm in the right. After iodine 131 combined with radiofrequency ablation (RFA) treatment, throat discomfort and recumbent breathing difficulties disappeared, and B-ultrasonic showed that the size of thyroid reduced to 2...
January 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28430648/radioimmunotherapy-for-cd133-colonic-cancer-stem-cells-inhibits-tumor-development-in-nude-mice
#19
Dinghu Weng, Xueyan Jin, Saimei Qin, Xiaoli Lan, Chong Chen, Xun Sun, Xianliang She, Changling Dong, Rui An
Accumulating evidence indicates that cancer stem cells (CSCs) are the cause of tumor drug/radio-resistance or distant metastasis; therefore, it is essential to eliminate CSCs to cure cancer completely. The purpose of this study was to utilize radioimmunotherapy (RIT) to target CD133(+) colonic CSCs and observe whether this prevented tumor development, by assessing the maximum tolerated dose (MTD) of HCT116 tumor-bearing nude mice with escalating doses of 131I-AC133.1 monoclonal antibody (mAb), and determining the therapeutic efficacy of RIT with 131I-AC133...
July 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28429876/iodine-131-meta-iodobenzylguanidine-therapy-for-patients-with-newly-diagnosed-high-risk-neuroblastoma
#20
REVIEW
Kathelijne Cjm Kraal, Elvira C van Dalen, Godelieve Am Tytgat, Berthe Lf Van Eck-Smit
BACKGROUND: Patients with newly diagnosed high-risk (HR) neuroblastoma (NBL) still have a poor outcome, despite multi-modality intensive therapy. This poor outcome necessitates the search for new therapies, such as treatment with (131)I-meta-iodobenzylguanidine ((131)I-MIBG). OBJECTIVES: To assess the efficacy and adverse effects of (131)I-MIBG therapy in patients with newly diagnosed HR NBL. SEARCH METHODS: We searched the following electronic databases: the Cochrane Central Register of Controlled Trials (CENTRAL; the Cochrane Library 2016, Issue 3), MEDLINE (PubMed) (1945 to 25 April 2016) and Embase (Ovid) (1980 to 25 April 2016)...
April 21, 2017: Cochrane Database of Systematic Reviews
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