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Yi S, Wang J, Wang R, Liu M, Zhong W, Zhu L, Jiang G. Structure-Related Thyroid Disrupting Effect of Perfluorooctanesulfonate-like Substances in Zebrafish Larvae. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:182-193. [PMID: 38156633 DOI: 10.1021/acs.est.3c07003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Chlorinated polyfluorooctane ether sulfonate (6:2 Cl-PFESA), hydrogenated polyfluorooctane ether sulfonate (6:2 H-PFESA), and chlorinated polyfluorooctanesulfonate (Cl-PFOS) share structural similarities with the regulated perfluorooctanesulfonate (PFOS), but their toxic potential is rarely known. Here, the thyroid disrupting potential of these four compounds in zebrafish larvae has been comparably investigated. PFOS, Cl-PFOS, and 6:2 Cl-PFESA were accumulated in the larvae at similar levels, approximately 1.3-1.6 times higher than 6:2 H-PFESA. Additionally, PFOS, Cl-PFOS, and 6:2 Cl-PFESA exhibited stronger disruption than 6:2 H-PFESA on genetic regulation, particularly concerning thyroid hormone (TH) activation and action and on TH homeostasis in both free and total forms of thyroxine (T4) and 3,5,3'-triiodothyronine (T3). These results indicate that chlorination or oxygen insertion does not substantially alter the thyrotoxicity of PFOS, but hydrogenation mitigates it. Molecular docking analysis and the luciferase reporter gene assay provided mechanistic perspectives that the PFOS-like substances could competitively replace THs to bind with TH plasma and membrane transporters, thereby disrupting TH transport and action, respectively. Moreover, they are also potent to disrupt TH synthesis and activation through Na+/K+-dependent transport of I- or competitive binding to the sites of deiodinases.
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Affiliation(s)
- Shujun Yi
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Jingwen Wang
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Rouyi Wang
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Menglin Liu
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Wenjue Zhong
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Lingyan Zhu
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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Karbownik-Lewińska M, Stępniak J, Iwan P, Lewiński A. Iodine as a potential endocrine disruptor-a role of oxidative stress. Endocrine 2022; 78:219-240. [PMID: 35726078 PMCID: PMC9584999 DOI: 10.1007/s12020-022-03107-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/02/2022] [Indexed: 12/19/2022]
Abstract
PURPOSE Iodine is an essential micronutrient required for thyroid hormone biosynthesis. However, overtreatment with iodine can unfavorably affect thyroid physiology. The aim of this review is to present the evidence that iodine-when in excess-can interfere with thyroid hormone synthesis and, therefore, can act as a potential endocrine-disrupting chemical (EDC), and that this action, as well as other abnormalities in the thyroid, occurs-at least partially-via oxidative stress. METHODS We reviewed published studies on iodine as a potential EDC, with particular emphasis on the phenomenon of oxidative stress. RESULTS This paper summarizes current knowledge on iodine excess in the context of its properties as an EDC and its effects on oxidative processes. CONCLUSION Iodine does fulfill the criteria of an EDC because it is an exogenous chemical that interferes-when in excess-with thyroid hormone synthesis. However, this statement cannot change general rules regarding iodine supply, which means that iodine deficiency should be still eliminated worldwide and, at the same time, iodine excess should be avoided. Universal awareness that iodine is a potential EDC would make consumers more careful regarding their diet and what they supplement in tablets, and-what is of great importance-it would make caregivers choose iodine-containing medications (or other chemicals) more prudently. It should be stressed that compared to iodine deficiency, iodine in excess (acting either as a potential EDC or via other mechanisms) is much less harmful in such a sense that it affects only a small percentage of sensitive individuals, whereas the former affects whole populations; therefore, it causes endemic consequences.
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Affiliation(s)
- Małgorzata Karbownik-Lewińska
- Department of Oncological Endocrinology, Medical University of Lodz, 90-752, Lodz, Poland.
- Polish Mother's Memorial Hospital-Research Institute, 93-338, Lodz, Poland.
| | - Jan Stępniak
- Department of Oncological Endocrinology, Medical University of Lodz, 90-752, Lodz, Poland
| | - Paulina Iwan
- Department of Oncological Endocrinology, Medical University of Lodz, 90-752, Lodz, Poland
| | - Andrzej Lewiński
- Polish Mother's Memorial Hospital-Research Institute, 93-338, Lodz, Poland
- Department of Endocrinology and Metabolic Diseases, Medical University of Lodz, 93-338, Lodz, Poland
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Jing L, Zhang Q. Intrathyroidal feedforward and feedback network regulating thyroid hormone synthesis and secretion. Front Endocrinol (Lausanne) 2022; 13:992883. [PMID: 36187113 PMCID: PMC9519864 DOI: 10.3389/fendo.2022.992883] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
Thyroid hormones (THs), including T4 and T3, are produced and released by the thyroid gland under the stimulation of thyroid-stimulating hormone (TSH). The homeostasis of THs is regulated via the coordination of the hypothalamic-pituitary-thyroid axis, plasma binding proteins, and local metabolism in tissues. TH synthesis and secretion in the thyrocytes-containing thyroid follicles are exquisitely regulated by an elaborate molecular network comprising enzymes, transporters, signal transduction machineries, and transcription factors. In this article, we synthesized the relevant literature, organized and dissected the complex intrathyroidal regulatory network into structures amenable to functional interpretation and systems-level modeling. Multiple intertwined feedforward and feedback motifs were identified and described, centering around the transcriptional and posttranslational regulations involved in TH synthesis and secretion, including those underpinning the Wolff-Chaikoff and Plummer effects and thyroglobulin-mediated feedback regulation. A more thorough characterization of the intrathyroidal network from a systems biology perspective, including its topology, constituent network motifs, and nonlinear quantitative properties, can help us to better understand and predict the thyroidal dynamics in response to physiological signals, therapeutic interventions, and environmental disruptions.
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Affiliation(s)
- Li Jing
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, China
| | - Qiang Zhang
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, United States
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Rump A, Hermann C, Lamkowski A, Abend M, Port M. Simulations of radioiodine exposure and protective thyroid blocking in a new biokinetic model of the mother-fetus unit at different pregnancy ages. Arch Toxicol 2022; 96:2947-2965. [PMID: 35922584 PMCID: PMC9525366 DOI: 10.1007/s00204-022-03331-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/15/2022] [Indexed: 11/29/2022]
Abstract
In the case of nuclear incidents, radioiodine may be released. After incorporation, it accumulates in the thyroid and enhances the risk of thyroidal dysfunctions and cancer occurrence by internal irradiation. Pregnant women and children are particularly vulnerable. Therefore, thyroidal protection by administering a large dose of stable (non-radioactive) iodine, blocking radioiodide uptake into the gland, is essential in these subpopulations. However, a quantitative estimation of the protection conferred to the maternal and fetal thyroids in the different stages of pregnancy is difficult. We departed from an established biokinetic model for radioiodine in pregnancy using first-order kinetics. As the uptake of iodide into the thyroid and several other tissues is mediated by a saturable active transport, we integrated an uptake mechanism described by a Michaelis–Menten kinetic. This permits simulating the competition between stable and radioactive iodide at the membrane carrier site, one of the protective mechanisms. The Wollf–Chaikoff effect, as the other protective mechanism, was simulated by adding a total net uptake block for iodide into the thyroid, becoming active when the gland is saturated with iodine. The model’s validity was confirmed by comparing predicted values with results from other models and sparse empirical data. According to our model, in the case of radioiodine exposure without thyroid blocking, the thyroid equivalent dose in the maternal gland increases about 45% within the first weeks of pregnancy to remain in the same range until term. Beginning in the 12th pregnancy week, the equivalent dose in the fetal thyroid disproportionately increases over time and amounts to three times the dose of the maternal gland at term. The maternal and fetal glands’ protection increases concomitantly with the amount of stable iodine administered to the mother simultaneously with acute radioiodine exposure. The dose–effect curves reflecting the combined thyroidal protection by the competition at the membrane carrier site and the Wolff–Chaikoff effect in the mother are characterized by a mean effective dose (ED50) of roughly 1.5 mg all over pregnancy. In the case of the fetal thyroid, the mean effective doses for thyroid blocking, taking into account only the competition at the carrier site are numerically lower than in the mother. Taking into account additionally the Wolff–Chaikoff effect, the dose–effect curves for thyroidal protection in the fetus show a shift to the left over time, with a mean effective dose of 12.9 mg in the 12th week of pregnancy decreasing to 0.5 mg at term. In any case, according to our model, the usually recommended dose of 100 mg stable iodine given at the time of acute radioiodine exposure confers a very high level of thyroidal protection to the maternal and fetal glands over pregnancy. For ethical reasons, the possibilities of experimental studies on thyroid blocking in pregnant women are extremely limited. Furthermore, results from animal studies are associated with the uncertainties related to the translation of the data to humans. Thus model-based simulations may be a valuable tool for better insight into the efficacy of thyroidal protection and improve preparedness planning for uncommon nuclear or radiological emergencies.
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Affiliation(s)
- A Rump
- Bundeswehr Institute of Radiobiology, Neuherberg Str. 11, 80937, Munich, Germany.
| | - C Hermann
- Bundeswehr Institute of Radiobiology, Neuherberg Str. 11, 80937, Munich, Germany
| | - A Lamkowski
- Bundeswehr Institute of Radiobiology, Neuherberg Str. 11, 80937, Munich, Germany
| | - M Abend
- Bundeswehr Institute of Radiobiology, Neuherberg Str. 11, 80937, Munich, Germany
| | - M Port
- Bundeswehr Institute of Radiobiology, Neuherberg Str. 11, 80937, Munich, Germany
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Toft DJ, Schneider AB. Protecting the Thyroid in Times of Conflict (Ukraine 2022). Thyroid 2022; 32:607-610. [PMID: 35469429 DOI: 10.1089/thy.2022.0135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Daniel J Toft
- Department of Endocrinology, Diabetes and Metabolism and University of Illinois at Chicago, Chicago, Illinois, USA
| | - Arthur B Schneider
- Department of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
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Gaouaoui-Azouaou H, L'Homme B, Benadjaoud MA, Sache-Aloui A, Granger R, Voyer F, Lestaevel P, Gruel G, Caire-Maurisier F, Crambes C, Dare-Doyen S, Benderitter M, Souidi M. Protection and safety of a repeated dosage of KI for iodine thyroid blocking during pregnancy. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2022; 42:011512. [PMID: 34700314 DOI: 10.1088/1361-6498/ac336e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
In case of nuclear power plant accidents resulting in the release of radioactive iodine (131I) in large amounts, a single intake of stable iodine is recommended in order to prevent131I fixation to the thyroid gland. However, in situations of prolonged exposure to131I (e.g. Fukushima-Daiichi natural and nuclear disaster), repetitive administration of iodine may be necessary to ensure adequate protection, with acceptable safety in vulnerable populations including pregnant women. Here we conducted toxicological studies on adult rats progeny following prolonged exposure to potassium iodide (KI)in utero. Pregnant Wistar rats were treated with 1 mg kg d-1KI or saline water for 2 or 4 d either between gestation days gestational day (GD) GD 9-12, or GD13-16. Plasma samples from the progeny were tested 30 d post-weaning for clinical biochemistry, thyroid hormones, and anti-thyroid antibody levels. Thyroid and brain were collected for gene expression analysis. The hormonal status was similar for the mothers in all experimental conditions. In the offspring, while thyroid-stimulating hormone and anti-thyroid peroxidase (anti-TPO) antibody levels were similar in all groups, a significant increase of FT3 and FT4 levels was observed in GD9-GD10 and in GD13-GD14 animals treated for 2 d, respectively. In addition, FT4 levels were mildly decreased in 4 d treated GD13-16 individuals. Moreover, a significant decrease in the expression level of thyroid genes involved in iodide metabolism, TPO and apical iodide transporter, was observed in GD13-GD14 animals treated for 2 d. We conclude that repeated KI administration for 2-4 d during gestation did not induce strong thyroid toxicity.
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Affiliation(s)
- Hayat Gaouaoui-Azouaou
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Bruno L'Homme
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Mohamed Amine Benadjaoud
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Amandine Sache-Aloui
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Romain Granger
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Frederic Voyer
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Philippe Lestaevel
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Gaëtan Gruel
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - François Caire-Maurisier
- Pharmacie Centrale des Armées, Direction des Approvisionnement en produits de santé des armées, 45404 Fleury-les Aubrais, France
| | - Caroline Crambes
- Pharmacie Centrale des Armées, Direction des Approvisionnement en produits de santé des armées, 45404 Fleury-les Aubrais, France
| | - Stephanie Dare-Doyen
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Marc Benderitter
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Maâmar Souidi
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
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7
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Fedoruk RS, Tesarivska UI, Kovalchuk II, Tsap MM, Kaplunenko VH, Koleschuk OI, Khrabko MI. Biological effects of iodine, selenium, sulfur citrates in broiler chickens. REGULATORY MECHANISMS IN BIOSYSTEMS 2021. [DOI: 10.15421/022172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
This study aimed at the assessment of the I, Se, S citrate effect on the organism of broiler chickens. Feeding of chickens of all groups was carried out by using standard balanced feeds – starter, grower, and finish with the use of group feeders placed at the appropriate height from the floor depending on the poultry height. For the chickens of experimental groups, I, Se, S citrate was added to drinking water daily during the 48th day. To the drinking water of chickens of experimental groups different amounts of the citrate solution were added I (200 mg/L), Se (50 mg/L), S (300 mg/L), prepared by the nanotechnology method. Chickens of the II group received the lowest dose of I, Se, S at the rate of 5 μg I/L, 1.25 μg Se/L, 7.5 μg S/L of drinking water, and for poultry of other experimental groups, it was increased by 2 (III), 4 (IV), 6 (V) and 8 (VI) times compared to II group. Coccidiostat "Kokcisan 12%" (KRKA, Slovenia) was added to the starter and grower feed at the stages of its manufacture in quantities of 0.5 kg/t of feed. Coccidiostat was not added to the final feed. During the 48-day technological period, the clinical condition of the poultry was monitored daily by forage and motor activity, safety, and every 7 days – for growth intensity with the individual determination of body weight on a laboratory scale. The investigation of the blood was carried out from the 35th or 48th day during the growing, period and also investigation of the internal organs – liver, heart, spleen, stomach, thymus, and bursa of Fabricius. The increase of cholesterol, triacylglycerols, and albumin in the blood of II, III, and VI chicken groups was established on the 35th day of the experiment, and the reduction of creatinine in III and VI groups. By that time, the effect of highest dose of I, Se, S caused a decrease in the T3 concentration in the blood of chickens in the VI group compared to the I and II groups. In particular, in the blood of chickens of IV, V and VI groups compared to the I, II, III group under these conditions there was a significant increase in the content of urea, Ca, P, cholesterol, as well as albumin – only in IV group on the 48th day. Triacylglycerols’ content increased in the blood serum of chickens in III and IV groups compared to the II and V groups, but in V group – decreased compared to the III, IV groups. The increase in liver, thymus, and heart mass in the II and V chicken groups was noticed and their decrease in the VI group was revealed compared with the control group. Reliable lower coefficients of the body mass of chickens of III and VI groups may indicate a less notable stimulating biological effect of I, Se, S citrate in these doses on liver development than on the whole organism. The addition of I, Se, S citrate to broiler chickens during the period of growing revealed the difference in their biological action in the presence and absence of the Kokcisan 12% in a mixed fodder. A more notable stimulating effect of low dose of I, Se, S citrate on the growth and development on the chickens' organism was established during the withdrawal of coccidiostatics from their diet. The effect may be due to its inhibitory influence on the biological activity of these elements in the first 35 days of growing. In the final period of chicken growing and withdrawal of ionophore Kokcisan from the diet more noticeable changes were revealed in the studied parameters.
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Fedoruk RS, Tesarivska UI, Kovalchuk II, Iskra RJ, Tsap M, Khrabko MI, Koleshchuk OI. The indices of thyroid system and metabolism of rats under the influence of nanocomposition based on iodine and citrate. UKRAINIAN BIOCHEMICAL JOURNAL 2021. [DOI: 10.15407/ubj93.03.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Nishikawa Y, Suzuki C, Takahashi Y, Sawano T, Kinoshita H, Clero E, Laurier D, Phan G, Nakayama T, Tsubokura M. No significant association between stable iodine intake and thyroid dysfunction in children after the Fukushima Nuclear Disaster: an observational study. J Endocrinol Invest 2021; 44:1491-1500. [PMID: 33206361 PMCID: PMC8195967 DOI: 10.1007/s40618-020-01454-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 10/16/2020] [Indexed: 12/28/2022]
Abstract
PURPOSE Stable iodine prophylaxis helps prevent childhood thyroid cancer in nuclear emergencies; however, there is limited information on its effect on thyroid function. This study aimed to examine thyroid function and autoimmunity among children and adolescents that took stable iodine after the Fukushima Nuclear Disaster. METHODS For this observational study, data were obtained from children and adolescents that underwent thyroid cancer screening at Hirata Central Hospital from April 2012 to March 2018. Participant characteristics, including possible hypothyroidism and hyperthyroidism, were compared between the prophylaxis and no-prophylaxis groups. Multivariable logistic regression models were used to assess for possible hypothyroidism, autoantibodies positive, and hyperthyroidism. RESULTS A total of 1,225 participants with stable iodine prophylaxis and 3,946 without prophylaxis were enrolled. Of those participants, blood samples were available for 144 and 1,201 participants in the prophylaxis and no-prophylaxis groups, respectively. There were 17 (11.8%) and 146 cases (12.2%) of possible hypothyroidism or autoantibodies positive cases in the prophylaxis and no-prophylaxis groups, respectively, and there were no cases and 3 cases (0.2%) of possible hyperthyroidism in those two groups, respectively. Multivariable analysis for possible hypothyroidism revealed no association between stable iodine intake and possible hypothyroidism or autoantibodies positive [odds ratio 0.716 (95% confidence interval 0.399-1.284)] (p = 0.262). We did not perform multivariable analysis for hyperthyroidism due to the limited number of cases. CONCLUSION Significant adverse effects of stable iodine intake on thyroid function were not observed among children and adolescents 7 years after the Fukushima Nuclear Disaster.
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Affiliation(s)
- Y Nishikawa
- Department of Internal Medicine, Hirata Central Hospital, 4, Shimizu-uchi, Kami-Yomogida, Hirata-mura, Ishikawa-gun, Fukushima, 963-8202, Japan.
- Department of Health Informatics, Kyoto University School of Public Health, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - C Suzuki
- Department of Thyroid Surgery, Hirata Central Hospital, Shimizu-uchi, Kami-Yomogida, Hirata-mura, Ishikawa-gun, Fukushima, 963-8202, Japan
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Y Takahashi
- Department of Health Informatics, Kyoto University School of Public Health, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - T Sawano
- Department of Radiation Health Management, Fukushima Medical University School of Medicine, 1, Hikariga-oka, Fukushima City, 960-1295, Japan
| | - H Kinoshita
- The Institute for Humanistic Studies, Kamakura Women's University, 6-1-3, Ofuna, Kamakura, 247-0056, Japan
| | - E Clero
- Health and Environment Division, Institute for Radiological Protection and Nuclear Safety, 92262, Fontenay-aux-Roses, France
| | - D Laurier
- Health and Environment Division, Institute for Radiological Protection and Nuclear Safety, 92262, Fontenay-aux-Roses, France
| | - G Phan
- Health and Environment Division, Institute for Radiological Protection and Nuclear Safety, 92262, Fontenay-aux-Roses, France
| | - T Nakayama
- Department of Health Informatics, Kyoto University School of Public Health, Yoshida Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - M Tsubokura
- Department of Internal Medicine, Hirata Central Hospital, 4, Shimizu-uchi, Kami-Yomogida, Hirata-mura, Ishikawa-gun, Fukushima, 963-8202, Japan
- Department of Radiation Health Management, Fukushima Medical University School of Medicine, 1, Hikariga-oka, Fukushima City, 960-1295, Japan
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Mikosch P, Trifina-Mikosch E, Saidler K, Kellner J, Suhrau S. [Iodine-rich thermal water in cure and rehabilitation from the perspective of the thyroid gland]. Wien Med Wochenschr 2020; 170:392-402. [PMID: 33026541 PMCID: PMC7593323 DOI: 10.1007/s10354-020-00782-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 08/19/2020] [Indexed: 11/05/2022]
Abstract
Bei einzelnen Schilddrüsenerkrankungen (Immunthyreopathie Morbus Basedow, Immunthyreopathie Hashimoto, Struma mit Autonomie) sollte eine übermäßige Jodzufuhr vermieden werden. Betreffend alimentärer Jodzufuhr gibt es dazu reichliches Informationsmaterial. Kuranwendungen werden zu einem breiten Indikationsspektrum eingesetzt und tragen einen wichtigen Teil zur Therapie gerade chronisch degenerativen Erkrankungen, zur Rehabilitation nach Traumen oder Tumorerkrankungen bei. Eine Jodzufuhr ist auch bei Kuranwendungen mit jodhaltigem Thermalwasser möglich, das Ausmaß der Jodzufuhr ist dabei abhängig von der Applikationsform und der Expositionsdauer. Informationsmaterial dazu ist nur spärlich in der Literatur zu finden. Der Artikel betrachtet jodhaltige Kuranwendungen aus thyreologischer Sicht im Spannungsfeld von positiven und möglichen negativen Auswirkungen einer jodhaltigen Kuranwendung. Neben einem Einblick in die Physiologie und Pathophysiologie des Jodstoffwechsels und Auswirkungen auf einzelne Schilddrüsenerkrankungen wird die Intensität einer Jodaufnahme bei unterschiedlichen Kuranwendungen dargestellt. Eine Übersicht von Kurorten/Thermen mit jodhaltigem Wasser in Österreich und seinen Nachbarstaaten ergänzt von einem Algorithmus zur Selektion von Patienten für eine Kur in Kurorten mit jodhaltigem Wasser wird präsentiert, um mögliche negative jodinduzierte Schilddrüsenfehlfunktionen schon vor Kurantritt zu vermeiden. Dem klinisch tätigen Arzt wird damit eine Unterstützung in der Entscheidungsfindung bei der Auswahl bzw. Ablehnung einer jodhaltigen Kuranwendung für seine Patienten zur Verfügung gestellt.
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Affiliation(s)
- Peter Mikosch
- 2. Medizinische Abteilung, Landesklinikum Mistelbach, Mistelbach, Österreich. .,Medizinische Universität Wien, Externe Lehre, Wien, Österreich.
| | | | - Katharina Saidler
- 2. Medizinische Abteilung, Landesklinikum Mistelbach, Mistelbach, Österreich.,Medizinische Universität Wien, Externe Lehre, Wien, Österreich
| | - Jennifer Kellner
- 2. Medizinische Abteilung, Landesklinikum Mistelbach, Mistelbach, Österreich
| | - Susanne Suhrau
- 2. Medizinische Abteilung, Landesklinikum Mistelbach, Mistelbach, Österreich
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Burtt JJ, Rickard M, McAllister A, Bergman L, Zablotska LB. Projecting thyroid cancer risk to the general public from radiation exposure following hypothetical severe nuclear accidents in Canada. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2020; 40:1091-1110. [PMID: 32663817 DOI: 10.1088/1361-6498/aba5a9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
INTRODUCTION A robust emergency management framework can limit radiation exposures and effectively minimize the potentially devastating consequences of a nuclear emergency. We projected thyroid cancer risk resulting from two hypothetical severe nuclear accidents occurring at the Darlington nuclear power plant (NPP) located in Ontario, Canada. METHODS Single- and multi-unit accidents were considered. A dose assessment was previously performed using the MELCOR Accident Consequences Code System. The generic criteria used to select the appropriate protective actions are described in the Ontario Provincial Nuclear Emergency Response Plan (PNERP). We hypothesized protection actions only within the 10 kilometre (km) radius of the NPP given the time sensitivity of iodine thyroid blocking. The excess risk of developing thyroid cancer was projected using the US National Cancer Institute's radiation risk assessment tool RadRAT. RESULTS We projected zero dose, and subsequently zero risk of developing thyroid cancer for people living within 10 km of the NPP, due to effective implementation of selected protective actions. Based on centreline doses, at the 12 km radius, excess childhood thyroid cancer risks of approximately 600% and 130% compared to the baseline were projected for the single- and multi-unit scenarios, respectively. The risk of developing thyroid cancer was projected to be low for adults for both scenarios. DISCUSSION The results of this modelling study provide insights into the effectiveness of protective actions in reducing radiation-related thyroid cancer risk when considering hypothetical severe nuclear accidents. Implementation of select protective actions protects the population living near the Darlington NPP. The projected increase of developing thyroid cancer for children living beyond 10 km could potentially be eliminated with additional mitigation measures specified in the PNERP.
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Affiliation(s)
- Julie Jane Burtt
- Federal Government, Canadian Nuclear Safety Commission, Ottawa, Ontario, CANADA
| | - Melanie Rickard
- Federal Government, Canadian Nuclear Safety Commission, Ottawa, Ontario, CANADA
| | - Andrew McAllister
- Federal Government, Canadian Nuclear Safety Commission, Ottawa, Ontario, CANADA
| | - Lauren Bergman
- Federal Government, Health Canada Radiation Protection Bureau, Ottawa, Ontario, CANADA
| | - Lydia B Zablotska
- Department of Epidemiology and Biostatistics, University of California San Francisco School of Medicine, San Francisco, California, UNITED STATES
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Effects of repetitive Iodine thyroid blocking on the foetal brain and thyroid in rats: a systems biology approach. Sci Rep 2020; 10:10839. [PMID: 32616734 PMCID: PMC7331645 DOI: 10.1038/s41598-020-67564-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 06/03/2020] [Indexed: 12/20/2022] Open
Abstract
A single administration of an iodine thyroid blocking agent is usually sufficient to protect thyroid from radioactive iodine and prevent thyroid cancer. Repeated administration of stable iodine (rKI) may be necessary during prolonged or repeated exposure to radioactive iodine. We previously showed that rKI for eight days offers protection without toxic effects in adult rats. However, the effect of rKI administration in the developing foetus is unknown, especially on brain development, although a correlation between impaired maternal thyroid status and a decrease in intelligence quotient of the progeny has been observed. This study revealed distinct gene expression profiles between the progeny of rats receiving either rKI or saline during pregnancy. To understand the implication of these differentially expressed (DE) genes, a systems biology approach was used to construct networks for each organ using three different techniques: Bayesian statistics, sPLS-DA and manual construction of a Process Descriptive (PD) network. The PD network showed DE genes from both organs participating in the same cellular processes that affect mitophagy and neuronal outgrowth. This work may help to evaluate the doctrine for using rKI in case of repetitive or prolonged exposure to radioactive particles upon nuclear accidents.
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Groeneweg S, van Geest FS, Peeters RP, Heuer H, Visser WE. Thyroid Hormone Transporters. Endocr Rev 2020; 41:5637505. [PMID: 31754699 DOI: 10.1210/endrev/bnz008] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 11/07/2019] [Indexed: 02/08/2023]
Abstract
Thyroid hormone transporters at the plasma membrane govern intracellular bioavailability of thyroid hormone. Monocarboxylate transporter (MCT) 8 and MCT10, organic anion transporting polypeptide (OATP) 1C1, and SLC17A4 are currently known as transporters displaying the highest specificity toward thyroid hormones. Structure-function studies using homology modeling and mutational screens have led to better understanding of the molecular basis of thyroid hormone transport. Mutations in MCT8 and in OATP1C1 have been associated with clinical disorders. Different animal models have provided insight into the functional role of thyroid hormone transporters, in particular MCT8. Different treatment strategies for MCT8 deficiency have been explored, of which thyroid hormone analogue therapy is currently applied in patients. Future studies may reveal the identity of as-yet-undiscovered thyroid hormone transporters. Complementary studies employing animal and human models will provide further insight into the role of transporters in health and disease. (Endocrine Reviews 41: 1 - 55, 2020).
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Affiliation(s)
- Stefan Groeneweg
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, the Netherlands Academic Center for Thyroid Diseases, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Ferdy S van Geest
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, the Netherlands Academic Center for Thyroid Diseases, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Robin P Peeters
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, the Netherlands Academic Center for Thyroid Diseases, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Heike Heuer
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - W Edward Visser
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, the Netherlands Academic Center for Thyroid Diseases, Erasmus Medical Center, Rotterdam, the Netherlands
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Rosique C, Lebsir D, Benatia S, Guigon P, Caire-Maurisier F, Benderitter M, Souidi M, Martin JC. Metabolomics evaluation of repeated administration of potassium iodide on adult male rats. Arch Toxicol 2020; 94:803-812. [PMID: 32047979 DOI: 10.1007/s00204-020-02666-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 02/03/2020] [Indexed: 02/07/2023]
Abstract
The long-lasting consequence of a new iodine thyroid blocking strategy (ITB) to be used in case of nuclear accident is evaluated in male Wistar rats using a metabolomics approach applied 30 days after ITB completion. The design used 1 mg/kg/day of KI over 8 days. Thyroid hormones remained unchanged, but there was a metabolic shift measured mainly in thyroid then in plasma and urine. In the thyroid, tyrosine metabolism associated to catecholamine metabolism was more clearly impacted than thyroid hormones pathway. It was accompanied by a peripheral metabolic shift including metabolic regulators, branched-chain amino acids, oxidant stress and inflammation-associated response. Our results suggested that iodide intake can impact gut microbiota metabolism, which was related to host metabolic regulations including in the thyroid. As there were no clear clinical signs of dysfunction or toxicity, we concluded that the measured metabolomics response to the new ITB strategy, especially in thyroid, is unlikely to reveal a pathological condition but a shift towards a new adaptive homeostatic state, called 'allostatic regulation'. The question now is whether or not the shift is permanent and if so at what cost for long-term health. We anticipate our data as a start point for further regulatory toxicity studies.
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Affiliation(s)
- Clément Rosique
- Aix Marseille Univ, INSERM, INRAE, C2VN, BioMeT, Marseille, France
| | - Dalila Lebsir
- Institut de Radioprotection Et de Sûreté Nucléaire (IRSN), PSE-SANTE, 92260, Fontenay-aux-Roses, France
| | | | - Pierre Guigon
- Pharmacie Centrale Des Armées, 45404, Fleury-les-Aubrais Cedex, France
| | | | - Marc Benderitter
- Institut de Radioprotection Et de Sûreté Nucléaire (IRSN), PSE-SANTE, 92260, Fontenay-aux-Roses, France
| | - Maâmar Souidi
- Institut de Radioprotection Et de Sûreté Nucléaire (IRSN), PSE-SANTE, 92260, Fontenay-aux-Roses, France
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15
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Rosique C, Lebsir D, Lestaevel P, Benatia S, Guigon P, Caire-Maurisier F, Benderitter M, Bennouna D, Souidi M, Martin JC. Assessment of the effects of repeated doses of potassium iodide intake during pregnancy on male and female rat offspring using metabolomics and lipidomics. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:603-615. [PMID: 31179882 DOI: 10.1080/15287394.2019.1625474] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Preparedness for nuclear accident responsiveness includes interventions to protect pregnancies against prolonged exposure to radioactive iodine. The aim of this study was to investigate a new design consisting of repeated administration of potassium iodide (KI, 1 mg/kg) for 8 days in late pregnancy gestational day 9-16 (GD9-GD16) in rats. The later-life effects of this early-life iodine thyroid blocking (ITB) strategy were assessed in offspring two months afterbirth. Functional behavioral tests including forced swimming test (FST) and rotarod test (RRT) in rats of both genders showed lower FST performance in KI-treated females and lower RRT performance in KI-treated male pups. This performance decline was associated with metabolic disruptions in cortex involving amino acid metabolism, tyrosine metabolism, as well as docosahexaenoic acid (DHA) lipids and signaling lipids in males and females. Beyond these behavior-associated metabolic changes, a portion of the captured metabolome (17-25%) and lipidome (3.7-7.35%) remained sensitive to in utero KI prophylactic treatment in both cortex and plasma of post-weaning rats, with some gender-related variance. Only part of these disruptions was attributed to lower levels of TSH and T4 (males only). The KI-induced metabolic shifts involved a broad spectrum of functions encompassing metabolic and cell homeostasis and cell signaling functions. Irrespective Regardless of gender and tissues, the predominant effects of KI affected neurotransmitters, amino acid metabolism, and omega-3 DHA metabolism. Taken together, data demonstrated that repeated daily KI administration at 1 mg/kg/day for 8 days during late pregnancy failed to protect the mother-fetus against nuclear accident radiation. Abbreviations: CV-ANOVA: Cross-validation analysis of variance; DHA: Docosahexaenoic acid; FST: Forced swimming test; FT3: plasma free triiodothyronine; FT4: plasma free thyroxine; GD: Gestational day; ITB: Iodine thyroid blocking; KI: potassium iodide; LC/MS: Liquid chromatography coupled with mass spectrometry; MTBE: Methyl tert-butyl ether; m/z: mass-to-charge ratio; PLS-DA: Partial least squares-discriminant analysis; PRIODAC: Repeated stable iodide prophylaxis in accidental radioactive releases; RRT: Rotarod test; TSH: Thyroid-stimulating hormone; VIP: Variable importance in projection.
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Affiliation(s)
- Clément Rosique
- a Aix Marseille University, INSERM, INRA, C2VN, BioMeT Department , Marseille , France
| | - Dalila Lebsir
- b Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE LRPAT Department , Fontenay-aux-Roses , France
| | - Philippe Lestaevel
- b Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE LRPAT Department , Fontenay-aux-Roses , France
| | - Sheherazade Benatia
- a Aix Marseille University, INSERM, INRA, C2VN, BioMeT Department , Marseille , France
| | - Pierre Guigon
- c Pharmacie Centrale des Armées, Analytical Control Department , Fleury-les-Aubrais Cedex , France
| | - François Caire-Maurisier
- c Pharmacie Centrale des Armées, Analytical Control Department , Fleury-les-Aubrais Cedex , France
| | - Marc Benderitter
- b Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE LRPAT Department , Fontenay-aux-Roses , France
| | - Djawed Bennouna
- a Aix Marseille University, INSERM, INRA, C2VN, BioMeT Department , Marseille , France
| | - Maâmar Souidi
- b Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE LRPAT Department , Fontenay-aux-Roses , France
| | - Jean-Charles Martin
- a Aix Marseille University, INSERM, INRA, C2VN, BioMeT Department , Marseille , France
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Cohen DPA, Lebsir D, Benderitter M, Souidi M. A systems biology approach to propose a new mechanism of regulation of repetitive prophylaxis of stable iodide on sodium/iodide symporter (NIS). Biochimie 2019; 162:208-215. [PMID: 31071356 DOI: 10.1016/j.biochi.2019.04.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 04/29/2019] [Indexed: 01/27/2023]
Abstract
Our group showed that repetitive dose of potassium iodide (KI) for eight days offers an efficient protection for exposure to repeated radioactive emissions without adverse effects on adult rats. However, differential expression of genes implicated in Wolff-Chaikoff effect was observed. To understand the Wolff-Chaikoff regulation and its molecular constituents during repetitive administration of KI, a biochemical reaction network was constructed as a "geographical" map of the thyrocyte depicting iodide and thyroid hormone synthesis. Path analysis of the network has been performed to investigate the presence of a regulatory circuit of the node iodide to the node "nis transcription". NIS is responsible for the uptake of KI and plays an important role in the Wolff-Chaikoff effect. The map is a source for the most updated information about iodide and thyroid hormone metabolism. Based on this map, we propose a hypothesis that shows a putative mechanism behind NIS regulation and KI uptake.
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Affiliation(s)
- David P A Cohen
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE/SESANE/LRTOX, 92262, Fontenay-aux-Roses, France
| | - Dalila Lebsir
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE/SESANE/LRTOX, 92262, Fontenay-aux-Roses, France
| | - Marc Benderitter
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-SANTE/SERAMED, 92262, Fontenay-aux-Roses, France
| | - Maâmar Souidi
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-SANTE/SERAMED, 92262, Fontenay-aux-Roses, France.
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Godlewska M, Banga PJ. Thyroid peroxidase as a dual active site enzyme: Focus on biosynthesis, hormonogenesis and thyroid disorders of autoimmunity and cancer. Biochimie 2019; 160:34-45. [DOI: 10.1016/j.biochi.2019.02.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 02/05/2019] [Indexed: 01/02/2023]
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18
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Lebsir D, Guemri J, Kereselidze D, Grison S, Benderitter M, Pech A, Cohen D, Benadjaoud MA, Lestaevel P, Souidi M. Repeated potassium iodide exposure during pregnancy impairs progeny's brain development. Neuroscience 2019; 406:606-616. [PMID: 30797025 DOI: 10.1016/j.neuroscience.2019.02.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 01/29/2019] [Accepted: 02/11/2019] [Indexed: 10/27/2022]
Abstract
Protracted radioiodine release may require repeated intake of potassium iodide (KI) to protect thyroid gland. It is well established that iodine excess inhibits transiently the thyroid function. As developing fetus depends on maternal thyroid hormones (TH) supply, more knowledge is needed about the plausible effects that repeated KI intake can cause in this sensitive population, especially that even subtle variation of maternal thyroid function may have persistent consequences on progeny brain processing. The aim of this study is to assess the consequences of repeated intake of KI during pregnancy on the progeny's thyroid function and brain development. To do so pregnant Wistar rats received KI over eight days, and then thirty days after the weaning, male progeny was subjected to behavior test. Pituitary and thyroid hormones level, anti-thyroid antibodies level, organs morphology, gene expression and global DNA methylation were assessed. Thirty days after the weaning, KI-exposed male progeny showed an uncommon hormonal status, characterized by a decrease of both thyroid-stimulating hormone (-28%) and free thyroxine (-7%) levels. Motor coordination was altered in KI-exposed male progeny. At the cerebellar level, we observed a decrease of mRNA expression of DCX (-42%) and RC3 (-85%); on the other hand, at the cortical level, mRNA expression of MBP (+71%), MOBP (+90%) and Kcna1 (+42%) was increased. To conclude, repeated KI prophylaxis is not adequate during pregnancy since it led to long-term irreversible neurotoxicity in the male progeny.
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Affiliation(s)
- Dalila Lebsir
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE, SESANE, 92262 Fontenay-aux-Roses, France
| | - Julien Guemri
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE, SESANE, 92262 Fontenay-aux-Roses, France
| | - Dimitri Kereselidze
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE, SESANE, 92262 Fontenay-aux-Roses, France
| | - Stephane Grison
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE, SESANE, 92262 Fontenay-aux-Roses, France
| | - Marc Benderitter
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE, SERAMED, 92262 Fontenay-aux-Roses, France
| | - Annick Pech
- Pharmacie centrale des armées, Direction des Approvisionnement en produits de Santé des Armées, 45000 Orléans, France
| | - David Cohen
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE, SESANE, 92262 Fontenay-aux-Roses, France
| | - Mohamed Amine Benadjaoud
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE, SERAMED, 92262 Fontenay-aux-Roses, France
| | - Philippe Lestaevel
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE, SESANE, 92262 Fontenay-aux-Roses, France
| | - Maâmar Souidi
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE, SERAMED, 92262 Fontenay-aux-Roses, France.
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Cohen D, Lebsir D, Tack K, Benderitter M, Souidi M. A putative mechanism of the Sodium/Iodide Symporter regulation during repetitive administration of stable Iodide described by a Systems Biology approach. BIO WEB OF CONFERENCES 2019. [DOI: 10.1051/bioconf/20191405008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A single dose of potassium iodide (KI) against a prolonged exposure to repeated radioactivity might not be effective enough to protect the thyroid. Our group have shown that a repetitive dose of KI for eight days offers efficient protection without adverse effects in male rats [1].
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20
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Benderitter M, Pourcher T, Martin JC, Darcourt J, Guigon P, Caire-Maurisier F, Pech A, Lebsir D, Rosique C, Guglielmi J, Rebière F, Tack K, Phan G, Lestaevel P, Souidi M, Jourdain JR. DO MULTIPLE ADMINISTRATIONS OF STABLE IODINE PROTECT POPULATION CHRONICALLY EXPOSED TO RADIOACTIVE IODINE: WHAT IS PRIODAC RESEARCH PROGRAM (2014-22) TEACHING US? RADIATION PROTECTION DOSIMETRY 2018; 182:67-79. [PMID: 30169846 DOI: 10.1093/rpd/ncy129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Indexed: 06/08/2023]
Abstract
Single dose of potassium iodide (KI) is recommended to prevent the risk of thyroid cancer during nuclear accidents. However in the case of repeated/protracted radioiodine release, a unique dose of KI may not protect efficiently the thyroid against the risk of further developing a radiation-induced cancer. The new WHO guidelines for the use in planning for and responding to radiological and nuclear emergencies identify the need of more data on this subject as one of the four research priorities. The aims of the PRIODAC project are (1) to assess the associated side effects of repeated intakes of KI, (2) to better understand the molecular mechanisms regulating the metabolism of iodine, (3) to revise the regulatory French marketing authorization of 65-mg KI tablets and (4) to develop new recommendations related to the administration of KI toward a better international harmonization. A review of the literature and the preliminary data are presented here.
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Affiliation(s)
- Marc Benderitter
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, Fontenay-aux-Roses, France
| | - Thierry Pourcher
- Laboratoire BIAM/TIRO, Commissariat à l'Energie Atomique et aux énergies alternatives (CEA), School of medicine, 28 avenue de Valombrose, Nice, France
| | - Jean-Charles Martin
- UMR INRA 1260/INSERM 1062/AMU « NORT », 27 boulevard Jean Moulin, Marseille, France
| | - Jacques Darcourt
- UMR TIRO-MATOs, Université Nice Sophia Antipolis (UNS), School of medicine, 28 avenue de Valombrose, Nice, France
| | - Pierre Guigon
- Pharmacie Centrale des Armées (PCA), Direction des Approvisionnements en produits de Santé des Armées, Orléans, France
| | - Francois Caire-Maurisier
- Pharmacie Centrale des Armées (PCA), Direction des Approvisionnements en produits de Santé des Armées, Orléans, France
| | - Annick Pech
- Pharmacie Centrale des Armées (PCA), Direction des Approvisionnements en produits de Santé des Armées, Orléans, France
| | - Dalila Lebsir
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, Fontenay-aux-Roses, France
| | - Clément Rosique
- UMR INRA 1260/INSERM 1062/AMU « NORT », 27 boulevard Jean Moulin, Marseille, France
| | - Julien Guglielmi
- UMR TIRO-MATOs, Université Nice Sophia Antipolis (UNS), School of medicine, 28 avenue de Valombrose, Nice, France
| | - Francois Rebière
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, Fontenay-aux-Roses, France
| | - Karine Tack
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, Fontenay-aux-Roses, France
| | - Guillaume Phan
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, Fontenay-aux-Roses, France
| | - Philippe Lestaevel
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, Fontenay-aux-Roses, France
| | - Maâmar Souidi
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, Fontenay-aux-Roses, France
| | - Jean-René Jourdain
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, Fontenay-aux-Roses, France
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Repeated KI Prophylaxis in Case of Prolonged Exposure to Iodine Radioisotopes: Pharmacokinetic Studies in Adult Rats. Pharm Res 2018; 35:227. [PMID: 30298383 DOI: 10.1007/s11095-018-2515-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 10/02/2018] [Indexed: 02/07/2023]
Abstract
PURPOSE To propose a new and effective dose regimen for stable potassium iodide (KI) repeated prophylaxis in case of prolonged exposure to radioactive iodine. METHODS The pharmacokinetics of iodine was determined in rats by compartmental analyses after intravenous and oral administrations of the optimal dose of 1 mg/kg KI, which was previously selected in a dose-effect study. The thyroid protection against iodine-125 incorporation was followed during 24 h after a single oral dosing of KI. A repeated KI prophylaxis was modeled using initial estimates of iodine pharmacokinetic parameters. RESULTS A dose regimen consisting in administrations of 1 mg/kg daily for 8 days was selected and studied. Plasma iodine concentrations predicted by simulation were verified by experimental data and varied after the third dose of KI between 174 and 1190 μg/l. The inhibition study of iodine-125 binding in the thyroid as a function of the time showed that the protection effect of KI could be correlated to stable iodine plasma concentrations. Hence, a theoretical decrease in iodine-125 thyroid uptake from 63 to 88% could be achieved in a 24 h-interval between two KI doses. CONCLUSION Given the satisfactory levels of thyroid protection, this dose regimen could be envisaged in order to extent KI indications for repeated prophylaxis.
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