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https://www.readbyqxmd.com/read/29452767/uptake-and-distribution-of-organo-iodine-in-deep-sea-corals
#1
Nancy G Prouty, E Brendan Roark, Leslye M Mohon, Ching-Chih Chang
Understanding iodine concentration, transport, and bioavailability is essential in evaluating iodine's impact to the environment and its effectiveness as an environmental biogeotracer. While iodine and its radionuclides have proven to be important tracers in geologic and biologic studies, little is known about transport of this element to the deep sea and subsequent uptake in deep-sea coral habitats. Results presented here on deep-sea black coral iodine speciation and iodine isotope variability provides key information on iodine behavior in natural and anthropogenic environments, and its geochemical pathway in the Gulf of Mexico...
February 13, 2018: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/29423055/hyperplastic-thymus-with-increased-angiogenesis-is-correlated-with-elevated-serum-thyroglobulin-level-in-differentiated-thyroid-cancer-patients-with-tenis-syndrome
#2
Guangjian Zhang, Rui Gao, Yuanbo Wang, Yan Liu, Juan Li, Xi Jia, Yiqian Liang, Aimin Yang
Aims: To investigate the association between angiogenetic activity of hyperplastic thymus and serum thyroglobulin (Tg) level in differentiated thyroid carcinoma patients with thyroglobulin (Tg)-elevated Negative Iodine Scintigraphy (TENIS) Syndrome. Methods: A cohort of 30 consecutive patients who underwent total thyroidectomy followed by radioiodine ablation and had TENIS syndrome received integrin αvβ3 targeted imaging with 99mTc-HYNIC-PEG4-E[PEG4-c(RGDfk)]2 (99mTc-3PRGD2)...
January 9, 2018: Oncotarget
https://www.readbyqxmd.com/read/29411357/iodine-containing-supplement-use-by-pregnant-women-attending-antenatal-clinics-in-western-australia
#3
Tammy Hine, Yun Zhao, Andrea Begley, Sheila Skeaff, Jill Sherriff
BACKGROUND: Iodine requirements increase during pregnancy and although national recommendations for daily iodine supplementation (150 µg) exist, there is no research related to the uptake of these recommendations by pregnant women in Western Australia. AIMS: To investigate the use of iodine-containing supplements and associations with their use in a sample of Western Australian pregnant women. MATERIALS AND METHODS: A cross-sectional study was conducted on pregnant women attending antenatal clinics in a public tertiary hospital for women and neonates in Perth during 2012 and 2013 (n = 425)...
February 7, 2018: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29393056/inguinal-endometriosis-visualized-on-i-131-whole-body-scan
#4
Derya Çayır, Mine Araz, Mahmut Apaydın, Erman Çakal
We present a rare case with inguinal iodine-131 (I-131) uptake on whole body scan. The patient was suffering from a painful right inguinal mass during menstrual period, which was later sonographically and histopathologically confirmed to be an inguinal focus of endometriosis. Endometriosis is a previously reported site of radioiodine uptake and detection of radioiodine uptake in the inguinal region has also been described. Nevertheless, to the best of our knowledge, this is the first case report of I-131 uptake in an inguinal endometriosis focus...
February 1, 2018: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/29388770/a-dual-reporter-iodinated-labeling-reagent-for-cancer-positron-emission-tomography-imaging-and-fluorescence-guided-surgery
#5
Zhi Lu, Truc Thuy Pham, Vineeth Rajkumar, Zilin Yu, R Barbara Pedley, Erik Årstad, John Maher, Ran Yan
The combination of early diagnosis and complete surgical resection offers the greatest prospect of curative cancer treatment. An iodine-124/fluorescein-based dual-modality labeling reagent, 124I-Green, constitutes a generic tool for one-step installation of a positron emission tomography (PET) and a fluorescent reporter to any cancer-specific antibody. The resulting antibody conjugate would allow both cancer PET imaging and intraoperative fluorescence-guided surgery. 124I-Green was synthesized in excellent radiochemical yields of 92±5% (n=4) determined by HPLC with an improved one-pot three-component radioiodination reaction...
February 1, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29382875/template-free-synthesis-of-porous-carbon-from-triazine-based-polymers-and-their-use-in-iodine-adsorption-and-co2-capture
#6
Chan Yao, Guoyan Li, Jiku Wang, Yanhong Xu, Limin Chang
A series of novel triazine-containing pore-tunable carbon materials (NT-POP@800-1-6), which was synthesized via pyrolysis of porous organic polymers (POPs) without any templates. NT-POP@800-1-6 possess moderate BET surface areas of 475-736 m2 g-1, have permanent porosity and plenty of nitrogen units in the skeletons as effective sorption sites, and display relatively rapid guest uptake of 56-192 wt% in iodine vapour in the first 4 h. In addition, all the samples exhibit the outstanding CO2 adsorption capacity of 2...
January 30, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29363248/a-high-fat-diet-rich-in-saturated-and-mono-unsaturated-fatty-acids-induces-disturbance-of-thyroid-lipid-profile-and-hypothyroxinemia-in-male-rats
#7
Xiaohan Zhang, Wenbin Chen, Shanshan Shao, Guowang Xu, Yongfeng Song, Chao Xu, Ling Gao, Chunxiu Hu, Jiajun Zhao
SCOPE: Increasing evidence has shown that the disturbance of lipid metabolism might make a possible contribution to the pathogenesis of organ dysfunction, including thyroid, yet it is unknown whether excess intake of dietary fat interferes in thyroid lipid profile. We investigated the effects of dietary fat towards the thyroid lipid profile and thyroid function. METHODS AND RESULTS: Male Sprague-Dawley rats were fed with high fat diet (HFD) rich in saturated and mono-unsaturated fatty acids or chow diet for 18 weeks...
January 23, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29353393/131i-induced-graves-disease-in-patients-treated-for-toxic-multinodular-goitre-systematic-review-and-descriptive-analysis
#8
REVIEW
C Roque, C A Vasconcelos
BACKGROUND: Graves' disease (GD) arising after the treatment of toxic multinodular goitre (TMNG) with radioiodine has long been described but it remained unclear whether GD was in fact iodine induced, its incidence, risk factors, natural history and treatment outcomes. METHODS: A systematic search using The Cochrane Library, Medline and PubMed Central allowed the pooling of data from 3633 patients with thyroid autonomy, 1340 patients with TMNG, to fill gaps in knowledge, regarding the clinical expression of iodine-induced GD (131I-IGD) in adults...
January 20, 2018: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29353104/galactosylated-iodine-based-small-molecule-i-v-ct-contrast-agent-for-bile-duct-imaging
#9
Yeonjin Jung, Hee Sook Hwang, Kun Na
Computed tomography (CT) with contrast plays an important role as a clinical diagnostic tool but still has a limited diagnostic range. In this work, we developed a novel injectable iodine-based small molecule CT contrast agent, even can be used for bile duct diagnostics. The bile duct diagnosable CT contrast agent (BDICA) is synthesized with 5-amino-2,4,6-triiodoisophthaloyl dichloride (ATIPC), tromethamine and lactobionic acid (LBA) for asialoglycoprotein receptor (ASGPR) targeted delivery via receptor-mediated endocytosis and transport to the bile canaliculi...
January 12, 2018: Biomaterials
https://www.readbyqxmd.com/read/29344218/atra-increases-iodine-uptake-and-inhibits-the-proliferation-and-invasiveness-of-human-anaplastic-thyroid-carcinoma-sw1736-cells-involvement-of-%C3%AE-catenin-phosphorylation-inhibition
#10
Ling Lan, Spyros Basourakos, Dai Cui, Xuemei Zuo, Wei Deng, Lili Huo, Hailing Chen, Guoying Zhang, Lili Deng, Bingyin Shi, Yong Luo
All-trans-retinoic acid (ATRA) can enhance iodine uptake capability of thyroid tumors, but the mechanisms remain poorly understood. The aim of the present study was to investigate the effects of ATRA on isotope susceptibility, proliferation and invasion of anaplastic thyroid carcinoma (ATC) and potential mechanisms. SW1736 cells were treated with 1 µmol/l ATRA or 1% ethanol for 5 days. A cell line stably expressing β-catenin-shRNA was established. An iodine uptake assay was performed using 125I. Proliferation and invasiveness were tested using MTT and Transwell assays, respectively...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29343651/determining-patient-selection-tool-and-response-predictor-for-outpatient-30-mci-radioiodine-ablation-dose-in-non-metastatic-differentiated-thyroid-carcinoma-a-japanese-perspective
#11
Tetsuya Higuchi, Arifudin Achmad, Duong Duc Binh, Anu Bhattarai, Yoshito Tsushima
The lack of isolation ward throughout Japan has long been limiting the 131I radioactive iodine (RAI) ablation for differentiated thyroid cancer (DTC) cases. The 30 mCi RAI ablation was only recently permitted for outpatient basis. However, no patient selection tool nor response predictor has been proposed. This study evaluated factors to find response predictor and determinant for the suitable patients. The retrospective study reviewed 47 eligible non-metastatic papillary DTC patients whose had first 30 mCi RAI ablation after total thyroidectomy...
January 16, 2018: Endocrine Journal
https://www.readbyqxmd.com/read/29332912/impairment-of-iodine-123-metaiodobenzylguanidine-123i-mibg-uptake-in-patients-with-pulmonary-artery-hypertension
#12
Kenjuro Higo, Kayoko Kubota, Sunao Miyanaga, Masaaki Miyata, Masatoyo Nakajo, Megumi Jinguji, Mitsuru Ohishi
According to recent studies, lung uptake of iodine-123-metaiodobenzylguanidine (123I-MIBG) is impaired in many lung diseases and low lung uptake of 123I-MIBG suggests endothelial dysfunction of the pulmonary artery. 123I-MIBG scintigraphy in patients with pulmonary hypertension (PH) has not yet been clinically evaluated. We hypothesized that the lung uptake of 123I-MIBG is reduced in patients with PH and differs among PH subtypes. The purpose of the present study was to analyze the lung uptake of 123I-MIBG in patients with PH and compare it with the data obtained by echocardiography or right heart catheterization...
January 15, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29323252/clinical-value-of-99mtc-3prgd2-spect-ct-in-differentiated-thyroid-carcinoma-with-negative-131i-whole-body-scan-and-elevated-thyroglobulin-level
#13
Rui Gao, Guang-Jian Zhang, Yuan-Bo Wang, Yan Liu, Fan Wang, Xi Jia, Yi-Qian Liang, Ai-Min Yang
The aim of this study was to assess the usefulness of integrin imaging with 99mTc-PEG4-E[PEG4-c(RGDfK)]2 (99mTc-3PRGD2) single photon emission computed tomography (SPECT)/computed tomography (CT) in detecting recurrent disease in patients with differentiated thyroid cancer (DTC), negative radioiodine whole-body scan (WBS) and high serum thyroglobulin (Tg). Thirty-seven patients who underwent total thyroidectomy followed by radioactive iodine ablation and had negative radioiodine WBS but elevated Tg levels were included...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29319129/cerebellar-metastasis-of-papillary-thyroid-carcinoma-detected-with-somatostatin-receptor-scintigraphy
#14
Rafal Czepczynski, Anna Wyszomirska, Maria Gryczynska, Ewelina Szczepanek-Parulska, Marek Ruchala
BACKGROUND: Distant metastases of papillary thyroid carcinoma (PTC) may lack the ability to concentrate radioiodine. In such cases, positive somatostatin receptor scintigraphy might be useful in demonstrating the expression of somatostatin receptors that are potential therapeutic targets. To date, only several cerebellar metastases from PTC have been reported in the literature. PATIENT FINDINGS: We present an 82-year-old female, in whom an asymptomatic cerebellar metastasis from PTC was diagnosed by the means of Tc-99m-EDDA/HYNIC-TOC scintigraphy four years following the initial diagnosis...
January 10, 2018: Endokrynologia Polska
https://www.readbyqxmd.com/read/29305726/evaluation-of-necrosis-avidity-and-potential-for-rapid-imaging-of-necrotic-myocardium-of-radioiodinated-hypocrellins
#15
Qiaomei Jin, Juanzhi Zhao, Meng Gao, Yuanbo Feng, Wei Liu, Zhiqi Yin, Tiannv Li, Shaoli Song, Yicheng Ni, Jian Zhang, Dejian Huang, Dongjian Zhang
PURPOSE: Rapid noninvasive delineation of necrotic myocardium in ischemic regions is very critical for risk stratification and clinical decision-making but still challenging. This study aimed to evaluate the necrosis avidity of radioiodinated hypocrellins and its potential for rapidly imaging necrotic myocardium. PROCEDURES: The aggregation constants of four natural hypocrellins were analyzed by UV/vis spectroscopy. Then, they were radiolabeled with iodine-131 by iodogen oxidation method...
January 5, 2018: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/29302491/an-ectopic-intrathyroidal-thymic-tissue-and-intrathymic-parathyroid-tissue-in-a-patient-with-graves-disease
#16
Kelly O'Connor, Hassan Alzahrani, Fadi Murad, Philip Daroca, Emad Kandil
Ectopic intrathyroidal thymic tissue, with coinciding intrathymic parathyroid tissue, is a very rare occurrence that is most often found incidentally in adults during surgery. We report a 23-year-old female who presented with Graves disease refractory to medical treatment. Radioactive iodine uptake demonstrated increased, diffuse uptake in the region of the thyroid. The patient underwent a total thyroidectomy and right inferior parathyroidectomy which was found enlarged intraoperatively. Histopathologically, surgical specimen demonstrated characteristics of intrathyroidal thymic tissue and intrathymic parathyroid tissue...
December 2017: Gland Surgery
https://www.readbyqxmd.com/read/29245323/lung-adenocarcinoma-and-pulmonary-metastases-coexist-in-a-patient-with-papillary-thyroid-carcinoma-a-case-report
#17
Changhai Cheng, Jinxin Zhou, Xiaonan Shao
RATIONALE: Multiple primary malignant tumors (MPMTs) are defined as 2 or more independent primary malignancies of different histologies/origins in the same individual. Although the incidence of MPMTs is being increasing, second primary cancer (SPC) is still rare and difficult to distinguish from metastasis. Here, we present a case of thyroid carcinoma with lung metastasis and primary lung cancer. PATIENTS CONCERNS: The patient was a 66-year-old man diagnosed of papillary thyroid carcinoma (PTC) with lymph nodes, lung, and skeletons metastases...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29232183/loss-of-substantia-nigra-hyperintensity-at-3-0-t-mr-imaging-in-idiopathic-rem-sleep-behavior-disorder-comparison-with-123i-fp-cit-spect
#18
Yun Jung Bae, Jong-Min Kim, Kyeong Joon Kim, Eunhee Kim, Hyun Soo Park, Seo Young Kang, In-Young Yoon, Jee-Young Lee, Beomseok Jeon, Sang Eun Kim
Purpose To examine whether the loss of nigral hyperintensity (NH) on 3.0-T susceptibility-weighted (SW) magnetic resonance (MR) images can help identify high synucleinopathy risk in patients with idiopathic rapid eye movement sleep behavior disorder (iRBD). Materials and Methods Between March 2014 and April 2015, 18 consecutively recruited patients with iRBD were evaluated with 3.0-T SW imaging and iodine 123-2β-carbomethoxy-3β-(4-iodophenyl)-N-(3-fluoropropyl)-nortropane (123I-FP-CIT) single photon emission computed tomography and compared with 18 healthy subjects and 18 patients with Parkinson disease (PD)...
December 12, 2017: Radiology
https://www.readbyqxmd.com/read/29217738/radiolabeled-4-fluoro-3-iodobenzyl-guanidine-improves-imaging-and-targeted-radionuclide-therapy-of-norepinephrine-transporter-expressing-tumors
#19
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/29200191/determination-of-thresholds-of-radioactive-iodine-uptake-response-with-clinical-exposure-to-perchlorate-a-pooled-analysis
#20
Gretchen M Bruce, Lisa M Corey, Elizabeth N Pearce, Lewis E Braverman, Richard C Pleus
OBJECTIVE: To conduct a more robust examination of perchlorate exposure on iodide uptake inhibition (IUI) using pooled data from four clinical studies of perchlorate exposure. METHODS: To establish a response threshold for IUI, data were analyzed using segmented linear regression and benchmark dose (BMD) analysis. RESULTS: Segmented linear regression applied to data for 69 subjects representing nine doses identified a breakpoint corresponding to a change in the slope of the dose-response relationship of 3...
December 1, 2017: Journal of Occupational and Environmental Medicine
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