Academic literature on the topic 'Wolff-Chaikoff'
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Journal articles on the topic "Wolff-Chaikoff"
Hardley, Macy T., Andrew H. Chon, Jorge Mestman, Caroline T. Nguyen, Mitchell E. Geffner, and Ramen H. Chmait. "Iodine-Induced Fetal Hypothyroidism: Diagnosis and Treatment with Intra-Amniotic Levothyroxine." Hormone Research in Paediatrics 90, no. 6 (2018): 419–23. http://dx.doi.org/10.1159/000488776.
Full textJohnson, T. M. "The Wolff-Chaikoff effect: hypothyroidism due to potassium iodide." Archives of Dermatology 124, no. 8 (August 1, 1988): 1184–85. http://dx.doi.org/10.1001/archderm.124.8.1184.
Full textClemens, P. C. "The Wolff-Chaikoff effect: hypothyroidism due to iodine application." Archives of Dermatology 125, no. 5 (May 1, 1989): 705. http://dx.doi.org/10.1001/archderm.125.5.705.
Full textJohnson, Timothy M. "The Wolff-Chaikoff Effect: Hypothyroidism due to Potassium Iodide." Archives of Dermatology 124, no. 8 (August 1, 1988): 1184. http://dx.doi.org/10.1001/archderm.1988.01670080010005.
Full textClemens, Peter C. "The Wolff-Chaikoff Effect: Hypothyroidism due to Iodine Application." Archives of Dermatology 125, no. 5 (May 1, 1989): 705. http://dx.doi.org/10.1001/archderm.1989.01670170121022.
Full textHeymann, Warren R. "Potassium iodide and the Wolff-Chaikoff effect: Relevance for the dermatologist." Journal of the American Academy of Dermatology 42, no. 3 (March 2000): 490–92. http://dx.doi.org/10.1016/s0190-9622(00)90224-x.
Full textAliefendioğlu, Didem, Cihat Şanli, Murat Çakmak, Ayça Ağar, Meryem Albayrak, and Olcay Evliyaoğlu. "Wolff-Chaikoff effect in a newborn: is it an overlooked problem?" Journal of Pediatric Surgery 41, no. 12 (December 2006): e1-e3. http://dx.doi.org/10.1016/j.jpedsurg.2006.08.041.
Full textSerrano-Nascimento, Caroline, Jamile Calil-Silveira, and Maria Tereza Nunes. "Posttranscriptional regulation of sodium-iodide symporter mRNA expression in the rat thyroid gland by acute iodide administration." American Journal of Physiology-Cell Physiology 298, no. 4 (April 2010): C893—C899. http://dx.doi.org/10.1152/ajpcell.00224.2009.
Full textGarcía Rincón, Cristian Iván, Luz Yaneth Becerra Salazar, Germán Alberto Moreno Gómez, and Henry Mauricio Arenas Quintero. "Disfunción tiroidea posexposición a medio de contraste yodado." Revista Colombiana de Endocrinología, Diabetes & Metabolismo 2, no. 1 (March 25, 2017): 5–9. http://dx.doi.org/10.53853/encr.2.1.64.
Full textKhopkar, Uday, Bhushan Madke, Siddhi Chikhalkar, Sunanda Mahajan, and Vidya Kharkar. "Ulcerative subcutaneous zygomycosis: Development of hypothyroidism induced by potassium iodide (Wolff-Chaikoff effect)." Indian Journal of Dermatology, Venereology, and Leprology 76, no. 4 (2010): 431. http://dx.doi.org/10.4103/0378-6323.66604.
Full textDissertations / Theses on the topic "Wolff-Chaikoff"
Silveira, Jamile Calil. "Efeito da administração aguda de iodo na expressão gênica e atividade do promotor da pendrina: estudos em ratos e em células PCCI3." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/42/42137/tde-13082014-151401/.
Full textPendrin is an iodide transporter in thyroid, encoded by the PDS gene. Since iodide is essential for the synthesis of T3 and T4, this study aimed to evaluate the iodine effect on pendrin gene expression and on the activity of its promoter. Male rats received an injection of saline or 2mg of NaI. After 30, 1, 24 and 48h the thyroids were removed for mRNA and protein analysis by Real Time PCR and Western Blot. Moreover, PCCl3 cells were treated or not with 10-3M NaI. After 30, 1, 24 and 48h the RNA/protein were isolated. The efflux was determined by measure of 125I in the culture medium. For the promoter analysis, it was inserted in pGL3-basic plasmid. The results indicated that the pendrin mRNA amount increased after iodide treatment. However, the promoter activity was unchanged. The protein expression and iodide efflux increased only after 24h of treatment. These data suggest an important role of pendrin for the autoregulation of the thyroid.
Hichri, Maha. "Étude omique de la régulation de la thyroïde par l’iode et du rôle de SLC5A8 dans la thyroïde." Thesis, Université Côte d'Azur (ComUE), 2018. http://www.theses.fr/2018AZUR4061/document.
Full textIodine is an essential component of thyroid hormones. Thyroid cells capture the circulating iodine and concentrate it in the colloid. Then, it is incorporated into the thyroglobulin, the hormone precursor protein, by an organification mechanism. The iodine uptake capacity by the thyroid is finely regulated, not only by the Thyroid Stimulating Hormone (TSH) but also by circulating iodine. Indeed, in case of high circulating iodine, the thyroid actives a self-regulating mechanism called the Wolff-Chaikoff effect. This phenomenon results in a transient limitation of thyroid hormone production which is accompanied by a decrease in the expression of NIS (Natrium Iodide Symporter), the protein that is responsible for the active transport of iodine in the thyroid. In this study, global omics approaches were used to study this regulation in the context of the administration of an iodized product and mice invalidated for a gene coding a monocarboxylate transporter expressed in the thyroid. In the first part, the effect of iodinated contrast media (ICM), commonly used in medical imaging, has been studied. The administration of these agents leads to a reduction in the uptake of iodine often explained by a Wolff-Chaikoff effect associated with an iodine release potential. Through an overall quantitative proteomic approach, the mouse thyroid proteome, after administration of ICM, was compared to the proteome under conditions of excess iodine. In the second part, the role of SLC5A8 in thyroid function and the mechanisms underlying the Wolff-Chaikoff effect were studied in mice invalidated for the Slc5a8 gene (Solute carrier family 5 number 8) and wild type mice. SLC5A8 is a membrane protein identified in the laboratory and expressed in the thyrocyte apical membrane. This protein catalyzes the monocarboxylates transport in different organs but its role in the thyroid remains unsolved. Invalidation does not have a major effect on thyroid function. By using a comparative multiomic approach which combines transcriptomics, proteomics and metabolomics, the effects of this invalidation and / or regulation by iodine in the thyroid have been explored. Data processing reveals many pathways activated under different conditions with mechanisms to compensate for the effect of invalidation by the administration of iodine. The results indicate that the loss of SLC5A8 function affects the organization and / or maturation of thyroglobulin, the control of oxidative stress and of free iodine in the thyroid
Silveira, Jamile Calil. "Efeito da administração aguda de iodo sobre a expressão do gene da pendrina: Estudo in vivo e in vitro." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/42/42137/tde-20052010-144255/.
Full textPendrin is a chloride/iodide exchange located at the apical membrane of thyrocytes. Mutations in its gene lead to a defect in iodide organification. This suggested that pendrin could function as an apical iodide transporter in this cells. Since iodine is essential for thyroid hormone synthesis, this study attempted to investigate that possibility by evaluating whether the acute iodide administration, from 30min up to 24h, could regulate the Pendrin mRNA expression. Rats received NaI or saline, and were sacrificed 30´, 1 and 24h later.Thyroid total RNA was extracted and Pendrin mRNA content was evaluated by Northern Blotting and Real-Time PCR. For in vitro study,PCCl3 rat thyroid cells were cultured and treated or no with 103M NaI. After 30´, 1 and 24h, the cells were harvested and total RNA was extracted. The mRNA content was evaluated by Real-Time PCR. The mRNA increased in all groups of study, indicating that excess of iodide leads to an activation of Pendrin gene transcription and as consequence increased efflux of this element.
Lebsir, Dalila. "Toxicologie de l'iode stable : Etude in vivo des effets biologiques associés à une prophylaxie répétée par l'iodure de potassium." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS423.
Full textFollowing nuclear accidents, uranium fission products such as radioactive iodines are released into the environment. Humans are likely to be exposed to these elements mainly through inhalation of air and / or ingestion of contaminated food. Iodine 131 is known to be responsible for increasing the incidence of thyroid cancer. One of the available countermeasures is the ingestion of a single dose of potassium iodide (KI) tablets to saturate the thyroid gland with stable iodine and thus prevent the uptake of the radioactive isotope.Repeated releases of radioactive iodine during the two major accidents Chernobyl and Fukushima have highlighted the weaknesses of this measure, repeated intake of KI maybe necessary. In the literature there is little clinical and preclinical data on the repeated intake of stable iodine, regarding its use it has not been described. The iodine doctrine as well as the Marketing Authorization (MA) of the KI considers only the single taking, to renew exceptionally in the adult population. Iodine is known to be a key component of thyroid function, playing a dual role as both a substrate and a regulator of the thyroid. If its presence is essential for the synthesis of thyroid hormones, its excess exerts a transient inhibitory effect on this synthesis known as the Wolff-Chaikoff effect. Thyroid hormones affect the development and function of almost all organs of the body (brain, heart, bone ...), the slightest variation in their level can impact the homeostasis of the body. Hence, the toughness of applying repeated KI intake in the absence of biological and toxicological data. To fill this gap and find a solution in the event of repeated exposure, the French research program PRIODAC: repeated potassium iodide prophylaxis in accidental situation (ANR / RSNR), of which this thesis is part, aims to define the modalities of repeated administration of KI in all age groups (in utero, adult and elderly), and evaluate the biological consequences on the the body’s major physiological functions. Three models of Wistar rats were used in this work: the reference model adult rat (3 months), the first sensitive model offspring (exposed during gestation) and another sensitive model the older rat (12 months ), these three models received 8 consecutive intake of KI 1mg / kg / 24h. And the effects were assessed at long-term (30 days post-prophylaxis). On the reference model, there was no long-term adverse impact of repeated KI intake (Lebsir, Cohen et al. 2018; Lebsir, Manens et al. 2018). On the other hand, sensitive models reveal several long-term effects; the offspring exhibited impaired motor coordination and variation of the expression of some key brain genes. And in the elderly rat urinary biochemistry, expression of some key genes of the cardiovascular function, as well as the renin-angiotensin-aldosterone system were significantly impacted by the treatment. In conclusion, the results obtained show the toxicological safety of KI administered at 1 mg / kg every 24 hours for 8 days in the adult model, and the harm of this prophylactic scheme in sensitive models in utero and elderly. These results were sent to the French central pharmacy of armies and will serve as input data for good laboratory practice studies that eventually will contribute to the evolution of the iodine doctrine and KI MA
Hichri, Maha. "Étude omique de la régulation de la thyroïde par l’iode et du rôle de SLC5A8 dans la thyroïde." Electronic Thesis or Diss., Université Côte d'Azur (ComUE), 2018. http://www.theses.fr/2018AZUR4061.
Full textIodine is an essential component of thyroid hormones. Thyroid cells capture the circulating iodine and concentrate it in the colloid. Then, it is incorporated into the thyroglobulin, the hormone precursor protein, by an organification mechanism. The iodine uptake capacity by the thyroid is finely regulated, not only by the Thyroid Stimulating Hormone (TSH) but also by circulating iodine. Indeed, in case of high circulating iodine, the thyroid actives a self-regulating mechanism called the Wolff-Chaikoff effect. This phenomenon results in a transient limitation of thyroid hormone production which is accompanied by a decrease in the expression of NIS (Natrium Iodide Symporter), the protein that is responsible for the active transport of iodine in the thyroid. In this study, global omics approaches were used to study this regulation in the context of the administration of an iodized product and mice invalidated for a gene coding a monocarboxylate transporter expressed in the thyroid. In the first part, the effect of iodinated contrast media (ICM), commonly used in medical imaging, has been studied. The administration of these agents leads to a reduction in the uptake of iodine often explained by a Wolff-Chaikoff effect associated with an iodine release potential. Through an overall quantitative proteomic approach, the mouse thyroid proteome, after administration of ICM, was compared to the proteome under conditions of excess iodine. In the second part, the role of SLC5A8 in thyroid function and the mechanisms underlying the Wolff-Chaikoff effect were studied in mice invalidated for the Slc5a8 gene (Solute carrier family 5 number 8) and wild type mice. SLC5A8 is a membrane protein identified in the laboratory and expressed in the thyrocyte apical membrane. This protein catalyzes the monocarboxylates transport in different organs but its role in the thyroid remains unsolved. Invalidation does not have a major effect on thyroid function. By using a comparative multiomic approach which combines transcriptomics, proteomics and metabolomics, the effects of this invalidation and / or regulation by iodine in the thyroid have been explored. Data processing reveals many pathways activated under different conditions with mechanisms to compensate for the effect of invalidation by the administration of iodine. The results indicate that the loss of SLC5A8 function affects the organization and / or maturation of thyroglobulin, the control of oxidative stress and of free iodine in the thyroid
Book chapters on the topic "Wolff-Chaikoff"
Wu, James X., Kevin Ro, and Michael W. Yeh. "Jan Wolff and Israel L. Chaikoff." In Surgical Endocrinopathies, 21–24. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-13662-2_4.
Full textDELANGE, F. "The Wolff–Chaikoff Effect in Paediatrics." In Iodine Prophylaxis Following Nuclear Accidents, 83–92. Elsevier, 1990. http://dx.doi.org/10.1016/b978-0-08-037496-3.50012-6.
Full textRodrigues, Bárbara Garcia Carmo, Carolina Crespo Istoe, Claudia Caixeta Franco Andrade, Joana Evangelista Amaral, and Julia Batista de Oliveira. "FÁRMACO UTILIZADO NA PRÁTICA CLÍNICA E SUA RELAÇÃO COM O HIPOTIREOIDISMO: A AMIODARONA E O EFEITO WOLFF-CHAIKOFF." In Medicina: Longe dos holofotes, perto das pessoas, 95–101. Atena Editora, 2021. http://dx.doi.org/10.22533/at.ed.64521081014.
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