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sulfuric acid/cancro da mama
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12 resultados
Nanostructured gold dsDNA sensor for early detection of breast cancer by beta protein 1 (BP1).
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Beta protein 1 (BP1) is a homeobox protein expressed in 80% of breast cancer cells in either estrogen receptor (ER) positive or ER negative breast cancer. However, it is barely detectable in normal breast tissues. In this project we present an electrochemical DNA nanostructured gold biosensor for
Antitumor activity of resveratrol and its sulfated metabolites against human breast cancer cells.
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Resveratrol (3,4',5-trihydroxy- trans-stilbene) is a naturally occurring polyphenolic compound found in grapes, wine and medicinal plants with a variety of biological and pharmacological activities including pronounced anticancer properties. These effects are observed despite its extremely low
Synthesis and evaluation of novel substituted 5-hydroxycoumarin and pyranocoumarin derivatives exhibiting significant antiproliferative activity against breast cancer cell lines.
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A library of novel 5-hydroxycoumarin and pyranocoumarin derivatives was constructed via silica sulfuric acid-catalyzed pechmann reaction and Pd(0)-catalyzed suzuki coupling in tandem, and their antiproliferative activities against breast cancer cells MCF-7 and MDA-MB-231 were evaluated. The results
Effect of diethylaminoethyl-dextran on colony formation of human tumor cells in semisolid suspension cultures.
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The effect of diethylaminoethyl-dextran on colony formation of established and primary human ovarian and breast tumor cells in semisolid suspension cultures was investigated. At the concentration of 250 to 300 micrograms/ml used in the human tumor stem cell assay, diethylaminoethyl-dextran inhibited
Development and validation of an enzyme-linked immunosorbent assay for the quantification of trastuzumab in human serum and plasma.
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Trastuzumab, a humanized monoclonal antibody, is used for the treatment of breast cancer patients who overexpress the HER2 receptor. To optimize therapy, pharmacokinetic studies are necessary. The aim of this study was to develop an enzyme-linked immunosorbent assay (ELISA) for trastuzumab to
Purification of polysaccharide from artificially cultivated Anoectochilus roxburghii (wall.) Lindl. by high-speed counter current chromatography and its antitumor activity.
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To establish a systematic method for the extraction, purification, characterization and antitumor activity study of polysaccharide from artificially cultivated Anoectochilus roxburghii (wall.) Lindl. (AC-ARPS). High-speed counter current chromatography with two-phase aqueous systems was successfully
Solvent Fractionation and Acetone Precipitation for Crude Saponins from Eurycoma longifolia Extract.
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Eurycoma longifolia is a popular folk medicine in South East Asia. This study was focused on saccharide-containing compounds including saponins, mainly because of their medical potentials. Different organic solvents such as ethyl acetate, butanol, and chloroform were used to fractionate the
Adenosine conjugated lipidic nanoparticles for enhanced tumor targeting.
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Delivering chemotherapeutics by nanoparticles into tumor is impeded majorly by two factors: nonspecific targeting and inefficient penetration. Targeted delivery of anti-cancer agents solely to tumor cells introduces a smart strategy because it enhances the therapeutic index compared with untargeted
Synthesis and antimicrobial activities of some new 1-(5-phenylamino-[1,3,4]thiadiazol-2-yl)methyl-5-oxo-[1,2,4]triazole and 1-(4-phenyl-5-thioxo-[1,2,4]triazol-3-yl)methyl-5-oxo- [1,2,4]triazole derivatives.
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Acetic acid ethyl esters containing 5-oxo-[1,2,4]triazole ring (2) were synthesized by the condensation of compounds 1a-f with ethyl bromoacetate in basic media. The reaction of compounds 2a-f with hydrazine hydrate led to the formation of acid hydrazides (3a-f). The treatment of compounds 3 with
Purification, characterization and utilization of polysaccharide of Araucaria heterophylla gum for the synthesis of curcumin loaded nanocarrier.
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In this study, gum of Araucaria heterophylla was collected. The collected gum was subjected for extraction of polysaccharide using solvent extraction system. Thus, extracted polysaccharide was further purified using solvent method and was characterized using UV-Vis spectroscopy, Phenol sulfuric acid
Chitosan-Cellulose Multifunctional Hydrogel Beads: Design, Characterization and Evaluation of Cytocompatibility with Breast Adenocarcinoma and Osteoblast Cells.
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Cytocompatible polysaccharide-based functional scaffolds are potential extracellular matrix candidates for soft and hard tissue engineering. This paper describes a facile approach to design cytocompatible, non-toxic, and multifunctional chitosan-cellulose based hydrogel beads utilising
Synthesis of photoluminescent glycodendrimer with terminal β-cyclodextrin molecules as a biocompatible pH-sensitive carrier for doxorubicin delivery
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In the present research, we prepared new glycodendrimer containing β-cyclodextrin (β-CD) in three steps. At first, graphene quantum dots (GQDs) synthesized through pyrolysis of the citric acid (CA). Then the polyamidoamine (PAMAM) dendrimer was grown from the surface of the modified GQDs
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