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Showing 1 to 20 of 35 for “"Trolox"”.
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Advances in single molecule spectroscopy and microscopy for biological imaging and polymer characterization
… dendrimers that have a photoprotective molecule, Trolox, covalently attached to the probes, thereby resulting in increased photostability. Specifically, we designed the 'self-healing' FDNs using two complementary synthetic strategies, termed 'random addition' and 'controlled addition' allowing for …
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U0126, MEK1/2 inhibitor, Induces Adhesion Molecules Expression in Human Blood Cells
… such as LY294002 (an inhibitor for PI3Kinase), trolox (antioxidant), rottlerin (an inhibitor for PKC-δ), and SN50 (an inhibitor for NF-kB) on U0126-induced adhesion molecule expression. Adhesion molecule expression was attenuated by rottlerin and trolox. In addition, to examine cell type …
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Evaluation of Colloidal Stability and Ecotoxicity of Metal-based Nanoparticles in the Aquatic and Terrestrial Systems
… and organic compounds (cysteine, humic acid, and trolox) modulate colloidal stability, ion release, and aquatic toxicity of silver nanoparticles (AgNP); and (iii) the developmental responses of crop plants exposed to Ag- or ZnO- (zinc oxide) nanoparticles.</p> <p>Results suggest that the …
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Valorisation des variétés de dattes secondaires tunisiennes par l’application de traitement hydrothermique
… était beaucoup plus élevée (131 à 400 mmol Trolox / kg de poids sec) que celle de la chair (32-47 mmol Trolox / kg de poids sec). Pour l'utilisation totale de ces dattes, un prétraitement a été testé, les steam explosion (SET) et steam traitement (ST). Après l'application de plusieurs …
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Synthesis of fluorescent analogues of a-tocopherol as ligands for the human a-tocopherol transfer protein (a-TTP) /
… These compounds were prepared starting from (S)-Trolox® acid VIa esterification, protection, and reduction producing the silyl-protected (S)-Trolox aldehyde that was coupled using Wittig chemistry to different w-hydroxyalkylphosphonium bromides. Reduction of the alkene generated the w-hydroxy …
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Caracterização de farinha de taioba (Xanthosoma sagittifolium (L.) Schott) e seu aproveitamento tecnológico
… antioxidante, que variou de 7,24 para 13,69 µmol Trolox g?¹ (DPPH) e de 24,16 para 49,18 µmol Trolox g?¹ (ABTS). O pH das formulações variou entre 6,13 e 6,40 e a atividade de água entre 0,88 e 0,90. O aumento da concentração de farinha de taioba nas formulações proporcionou uma redução da …
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Characterization of artisanal honeys from Castilla y León (Spain)
… de la capacidad antioxidante equivalente de trolox (TEAC) y de la actividad antibacteriana contra Staphylococcus aureus.
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Evaluation of the antioxidant activity of extracts and flavonol glycosides isolated from the seed coats of coloured beans (Phaseolus vulgaris L.)
… exhibited an antioxidant activity of 57,816 μmol trolox equivalent/100g of dried seed coat weight and Windbreaker, with the maximum concentration of total flavonoid compounds, exhibited an antioxidant activity of 57,451 μmol trolox equivalent/100g of dried seed coat weight. Cellular measures of …
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The Structural Characterization and Bioactivity Assessment of Nonspecific Lipid Transfer Protein 1 (nsLTP1) from Caraway (Carum Carvi) Seeds
… activity was achieved by MTS assay, and the Trolox equivalent antioxidant capacity (TAC) was determined. Secondary strucutre stability of nsLTP1 was examined by circular dichroism (CD) spectroscopy.</p> <p><strong>Results</strong>: Caraway nsLTP1 is composed of 91 residues and weighs 9652 Da. …
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Síntesis de compuestos organoselénicos derivados del hidroxitirosol. Determinación de su actividad como antioxidantes
… una importante actividad antioxidante; con el trolox (84), análogo a la vitamina E soluble en agua, que se utiliza como estándar, que se utiliza en muchos de los ensayos como referencia a la hora de expresar los resultado en términos de ¿Capacidad Antioxidante Equivalente al Trolox¿ (CAET). Y …
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L-Cysteine Effects on Chlorogenic Acid Quinone-Amino Acid Induced Greening and Browning: Mechanism and Effects on Antioxidant Capacity
… while Antioxidant capacity was assessed by Trolox Equivalent Antioxidant Capacity and Folin-Ciocalteu reagent reducing capacity assays. More intense greening was detected at higher pH. Lysyl amine- CGA conjugates were identified as the predominant precursor of green TBA. …
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Temperature Dependence of 4-Hydroxy-2-Trans-Nonenal (HNE), a Toxic Aldehyde, in Coconut, Palm, Safflower and Grape Seed Oils
… as peroxide value, fatty acid distribution, and trolox equivalent antioxidant capacity (TEAC) assay were performed in the unheated commercial oils to obtain general information on their properties. The thiobarbituric acid (TBARS) assay, measuring secondary oxidation products such as aldehydes, …
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Effect of Almond-Raisin versus Commercial Sports Beverage on Antioxidant Status of Runners
… at the start, and every 20 minutes thereafter. Trolox Equivalent Antioxidant Capacity (TEAC) represented antioxidant activity. Gallic Acid Equivalents (GAE) represented total serum polyphenols. Using high-pressure-liquidchromatography, thiobarbituric acid reactive substance (TEARS) reflected …
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Identification of polyphenoilc compounds within fruit extracts and their role in the treatment of glioma
… highest antioxidant activity (6522.74 ± 59.30 µM TROLOX equivalents). The results presented a significant difference in each assay, between all fruits samples (p<0.001). This identified cranberry to contain the highest antioxidant activity when compared to the other fruits. This study examined the …
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Phytochemical investigation and biological activities of Sanicula europaea and Teucrium davaeanum. Isolation and identification of some constituents of Sanicula europaea and Teucrium davaeanum and evaluation of the antioxidant activity of ethanolic extracts of both plants and cytotoxic activity of some isolated compounds
… approximately 5%, 8 % antioxidant capacity of Trolox respectively. A study of the cytotoxic activity of davaeanuside A (6), iridoid glycoside (7), davaeanuside B (8) and saponin compound (10) isolated from the crude glycosides extract of T. davaeanum revealed that saponin compound (10) …
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Entwicklung eines Dual-Luciferase-Reportergen-Assays zum Nachweis der Induktion antioxidativer Enzyme durch Nahrungsbestandteile
… 12-O-Tetradecanoylphorbol-13-Acetat (TPA) und Trolox in nicht-zytotoxischen Konzentrationen hinsichtlich der Aktivierung des Ratten-CAT-, des humanen GPX1- und des humanen SOD1-Promotors untersucht. Die Bestimmung der maximal tolerierbaren Behandlungskonzentration erfolgte im Vorfeld mittels …
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Investigation on the Antioxidant Capabilities of Spice Extracts in Inhibition of Long Chain Polyunsaturated Fatty Acids Oxidation and Cholesterol
… (TEAC) values ranged from 0.18 to 0.60 µmol of trolox equivalent/gm of extract, with oregano the lowest and rosemary showing the highest activity. After heating, the antioxidant activity declined for all the spice tissues. During the 60oC incubation storage, only rosemary demonstrated a 10 % …
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The Effects of Onion and Yuzu Extracts against Ischemia/Hypoxia-Induced Dysfunction of Blood-Brain Barrier
… into nucleus. The effects of antioxidant, trolox, and N-acetyl-cysteine (NAC) as well as siFoxO3a transfection also mimicked those effects of OE, Quer, YE, and HSP. However, transfection of siFoxO3a did not inhibit transcription of MMP-9 and redistribution of ZO-1 induced by hypoxia. In …
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Novel Cancer Therapeutics, the Generation of ROS, and Cell Survival
… by the addition of the ROS-quenchers, NAC and Trolox. Collectively, these findings argue that geldanamycins may not be a viable therapy for HCC treatment and that 17-AAG toxicity in primary hepatocytes may be, at least upon initial drug exposure, due to ROS generation and mechanisms independent …
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Antioxidant Nanoparticles as Delivery Systems
… involved 8 steps starting with esterification of Trolox and finishing with the deprotection of the hydroxyl group of the alpha-tocopherol moiety. The antioxidant behavior of VECAR (0.0236 mM) was tested by DPPH assay which showed values similar to pure alpha-tocopherol (0.0229 mM). The values …
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