Iodide Uptake
Mostrando 1-12 de 80 artigos, teses e dissertações.
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1. 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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2. 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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3. Uptake of macromolecules by cercariae during skin penetration and transformation to schistosomula (Schistosoma mansoni)
Here, we observed the uptake of membrane-impermeant molecules by cercariae as they penetrate the skin and are transformed into schistosomula. We propose that membrane-impermeant molecules, Lucifer Yellow, Propidium iodide and Hoechst 33258 enter the parasite through both thenephridiopore and the surface membrane and then diffuse throughout the body of the pa
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-07
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4. 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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5. Resveratrol-loaded nanocapsules treatment reduces in vitro and in vivo glioma growth
Glioblastoma multiforme is a devastating cerebral tumor that submits to an awful prognostic. Because of this, improvements in the treatments are necessary to decrease the side effects and to increase the survival of the patients. Resveratrol, a constituent of the red wine, has been described to inhibit carcinogenesis at multiple stages. Biodegradable nanopar
Publicado em: 2010
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6. Expressão do simportador sódio-iodo (NIS) nos tumores tireoidianos benignos e malignos através de estudo imunohistoquímico e da quantificação do RNA mensageiro / Expression of the sodium iodide symporter (NIS) in benign and malignant thyroid tumors using immunohistochemistry and mesenger RNA quantification
The iodide uptake by epithelial thyroid cells requires the expression of sodium iodide symporter (NIS), a transmembrane glycoprotein of 643 amino acids. NIS is located at basolateral plasma membrane of the thyroid follicular cells and couples the transport of iodide and sodium to this cells. NIS gene was cloned in 1996, being the first step of investigation
Publicado em: 2007
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7. APERFEIÇOAMENTO E APLICAÇÕES DE UMA METODOLOGIA PARA ANÁLISE DE ESPECIAÇÃO DE ARSÊNIO POR ELETROFORESE CAPILAR COM DETECTOR DE ICPMS / IMPROVEMENTS AND APPLICATIONS OF A METHODOLOGY FOR THE SPECIATION ANALYSIS OF ARSENIC USING CAPILLARY ELECTROPHORESIS WITH ICPMS DETECTOR
Capillary electrophoresis (CE) is a well established separation technique for the study of elemental speciation, however, its low electroosmotic flow nL min(-1) restricts its application in many studies in which low detection limits are required. For this reason, the study of CE coupling (hyphenation) to more sensitive detectors is of great relevance. This w
Publicado em: 2006
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8. Effect of alkaloid arborinine and flavonoid rutin obtained of native plants from Bahia-Brazil on the viability and function of murine spleen and thymus cells in vitro. / Efeitos do alcalóide arborinina e do flavonóide rutina, extraídos de plantas nativas da Bahia, sobre funcionalidade e viabilidade de células de baço e timo murino in vitro.
Arborinine is an acridone alkaloid obtained from Erthela bahiensis, plant popularly used as diuretic, antidiabetic, antithermic and expectorant. Rutin is a citroflavonol obtained from Dimorphandra mollis a native medicinal plant from cerrado region in Bahia Brazil and has been described as anti-oxidative, anti-hemorrhagic and as a blood vessel protector. The
Publicado em: 2005
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9. Stage-specific activity of potential antimalarial compounds measured in vitro by flow cytometry in comparison to optical microscopy and hypoxanthine uptake
The evaluation of new antimalarial agents using older methods of monitoring sensitivity to antimalarial drugs are laborious and poorly suited to discriminate stage-specific activity. We used flow cytometry to study the effect of established antimalarial compounds, cysteine protease inhibitors, and a quinolone against asexual stages of Plasmodium falciparum.
Memórias do Instituto Oswaldo Cruz. Publicado em: 2004-03
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10. Identification of rounded atelectasis in workers exposed to asbestos by contrast helical computed tomography
Rounded atelectasis (RA) is a benign and unusual form of subpleural lung collapse that has been described mostly in asbestos-exposed workers. This form of atelectasis manifests as a lung nodule and can be confused with bronchogenic carcinoma upon conventional radiologic examination. The objective of the present study was to evaluate the variation in contrast
Brazilian Journal of Medical and Biological Research. Publicado em: 2003-10
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11. Efeito da despolarizaÃÃo da membrana plasmÃtica na modulaÃÃo da apoptose de neutrÃfilos mediada por lipopolissacarÃdeo
Among its many biologic activities, extracellular calcium plays a key role in the maintenance of plasma membrane polarization. The effect of membrane depolarization induced by low extracellular calcium concentration or ouabain in neutrophil (PMN) apoptosis and Caspase-3 expression are evaluated. PMN were isolated from blood of healthy lab volunteers by densi
Publicado em: 2003
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12. 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
Brazilian Journal of Medical and Biological Research. Publicado em: 2001-02