Sodium Iodide
Mostrando 1-12 de 68 artigos, teses e dissertações.
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1. Quantification of Discontinuities in Welded Joints Using Gamma Tomography
Gamma tomography was used in this work to evaluate the recurrent defects in welding processes in naval steel sheets. It was used a first-generation equipment consisting of a source of Cesium-137, with activity of the order of 200 mCi, coupled to a Thallium-doped Sodium Iodide detector, NaI (Tl). For the study, specimens were produced in ASTM A131-AH36 steel
Mat. Res.. Publicado em: 20/12/2019
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2. A Sustainable Methodology to Extract Bismuth from Secondary Sources
Bismuth is a critical metal broadly used in cosmetic, medicine and metallurgy. However, its scarcity in Earth’s crust may impair further applications. An alternative is to recover bismuth from secondary sources. In this work, a methodology to extract bismuth from safety valves of discharged gas cylinders is proposed. Extraction and purification of bismuth
J. Braz. Chem. Soc.. Publicado em: 24/10/2019
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3. In vitro cytotoxicity of chemical preservatives on human fibroblast cells
ABSTRACT Preservatives are widely used substances that are commonly added to various cosmetic and pharmaceutical products to prevent or inhibit microbial growth. In this study, we compared the in vitro cytotoxicity of different types of currently used preservatives, including methylparaben, imidazolidinyl urea (IMU), and sodium benzoate, using the human newb
Braz. J. Pharm. Sci.. Publicado em: 14/05/2018
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4. Insights into the intracellular mechanisms of citronellal in Candida albicans: implications for reactive oxygen species-mediated necrosis, mitochondrial dysfunction, and DNA damage
Abstract INTRODUCTION Citronellal (Cit) possesses antifungal activity and has possible implications for reactive oxygen species (ROS) generation in Candida albicans. In this study, the effects of Cit on ROS generation and the mechanisms by which Cit exerts anti-Candida effects were examined. METHODS A 2′,7′-dichlorodihydrofluorescein diacetate assay
Rev. Soc. Bras. Med. Trop.. Publicado em: 2017-08
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5. Evidence of the Presence of Thyroid Hormones in Achatina fulica Snails
ABSTRACT The objective of this study was to identify thyroid hormones and to examine their putative site of synthesis in Achatina fulica snails. For this purpose, radioimmunoassays were performed for T3 and T4 before and after long starvation with or without hemolymph deproteinization. Sodium/iodide symporter activity in vivo was analyzed through 125I admini
An. Acad. Bras. Ciênc.. Publicado em: 24/07/2017
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6. Single-walled carbon nanotubes functionalized with sodium hyaluronate enhance bone mineralization
The aim of this study was to evaluate the effects of sodium hyaluronate (HY), single-walled carbon nanotubes (SWCNTs) and HY-functionalized SWCNTs (HY-SWCNTs) on the behavior of primary osteoblasts, as well as to investigate the deposition of inorganic crystals on titanium surfaces coated with these biocomposites. Primary osteoblasts were obtained from the c
Braz J Med Biol Res. Publicado em: 04/12/2015
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7. Metilação do gene simportador sódio-iodo (NIS) em tumores de tireóide / Methylation of sodium iodide symporter (NIS) gene in thyroid tumors
O iodo é transportado para a célula tireoideana através do simportador sódio-iodo (NIS). Estudo anterior de nosso grupo mostrou que a expressão do RNAm de NIS estava reduzida nos tecidos tumorais (T) tireoideanos quando comparada à dos tecidos não tumorais (NT) adjacentes. A metilação de ilhas CpG localizadas em promotores é um dos mecanismos epige
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/12/2011
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8. Estradiol decreases iodide uptake by rat thyroid follicular FRTL-5 cells
Estradiol has well-known indirect effects on the thyroid. A direct effect of estradiol on thyroid follicular cells, increasing cell growth and reducing the expression of the sodium-iodide symporter gene, has been recently reported. The aim of the present investigation was to study the effect of estradiol on iodide uptake by thyroid follicular cells, using FR
Publicado em: 2010
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9. Análise morfométrica e molecular da alveolite induzida em ratos com diferentes modalidades de tratamento / Molecular and morphometric analysis of induced dry socket in mice with different treatment conditions
Dry socket is an inflammatory postoperative complication that undertakes sockets of recently extracted teeth. The incidence of such complication varies from 1 to 4% and might reach up to 30%. The objective of this study was to analyze the biological mechanisms involved in the repair process of intentionally infected sockets in mice; compare different treatme
Publicado em: 2009
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10. Effect of acute iodine administration on the regulation of sodium-iodide symporter (NIS) gene expression in vivo and in vitro studies. / Efeito da administração aguda de iodo na regulação da expressão do gene do co-transportador de sódio-iodeto (NIS) - estudo in vivo e in vitro.
O iodo em excesso promove o efeito Wolff-Chaikoff. Oligominerais já foram descritos como potenciais reguladores da expressão de proteínas. Tornou-se interessante avaliar se o iodo interferiria com a expressão do mRNA da NIS, em curtos períodos de tempo. Foram realizados, em ratos e células (de 30 min24h), estudos de expressão, comprimento de cauda pol
Publicado em: 2008
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11. Interaction of hidrophilic porphyrins and extracellular hemoglobin with biomimetic models of biological membranes / Interação de porfirinas hidrofílicas e de hemoglobina extracelular com modelos biomiméticos de membrana biológica
In the first part of this work interactions of the cationic meso tetrakis (4-N-methilpyridil) porphyrin (TMPyP) and meso-tetrakis (4-sulfonatophenyl) porphyrin (TPPS4) in the free base forms with membrane model systems (ionic micelles, mixed micelles and phospholipids vesicles) in aqueous solutions, have been investigated by optical absorption, resonance lig
Publicado em: 2008
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12. Microscopic and histometric comparative analysis of a metronidazole ointment application and sodium iodide plus hydrogen peroxide irrigation in the treatment of infected tooth sockets of rats / Análise microscópica e histométrica comparativa da aplicação de uma pasta à base de metronidazol e da irrigação com iodeto de sódio e peróxido de hidrogênio para o tratamento de alvéolos dentários infectados de ratos
The healing process in infected tooth sockets was evaluated after application of three types of treatment.: (1) surgical cleaning of the socket with alveolar curettes, saline solution irrigation and complete filling of the socket with a 10% metronidazole, 2% lidocaine, carboxymethylcelullose and mint as flavoring, (2) Single irrigation with 2% sodium iodide
Publicado em: 2007