Cytostatic Effect
Mostrando 1-12 de 67 artigos, teses e dissertações.
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1. Study of Dosage-Dependent Effects of Cytostatic Drugs Using a Fibroblast Cell Culture of the Human Nasal Mucosa
Abstract Introduction Knowing a concentration at which cytostatic drugs are toxic for the nasal fibroblasts will enable the use cytostatic drugs in the clinical practice to prevent excessive cicatrization. Objective To determine the cytostatic concentrations of mitomycin С, doxorubicin, and 5-fluorouracil affecting nasal mucosa fibroblasts. Methods We
Int. Arch. Otorhinolaryngol.. Publicado em: 2020-06
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2. Antiproliferative Effect of Urera baccifera Leaves Against Ovarian Carcinoma Cell Line (OVCAR-3)
Abstract Natural products, especially phytochemicals, have been extensively studies and have exhibited important antiproliferative effects. The American native species Urera baccifera (L.) Gaudich. ex Wedd. (Urticaceae) is widely distributed in Brazil, where it is known as urtiga-vermelha or urtigão. The leaves are popularly used as anti-inflammatory, antir
Braz. arch. biol. technol.. Publicado em: 24/10/2019
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3. Lupeol and its esters: NMR, powder XRD data and in vitro evaluation of cancer cell growth
ABSTRACT The triterpene lupeol (1) and some of its esters are secondary metabolites produced by species of Celastraceae family, which have being associated with cytotoxic activity. We report herein the isolation of 1, the semi-synthesis of eight lupeol esters and the evaluation of their in vitro activity against nine strains of cancer cells. The reaction of
Braz. J. Pharm. Sci.. Publicado em: 01/02/2018
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4. Antiproliferative effects of pinostrobin and 5,6-dehydrokavain isolated from leaves of Alpinia zerumbet
Abstract Natural products are a major source of drugs for the treatment of cancer. The species Alpinia zerumbet (Pers.) B.L. Burtt & R.M. Sm, Zingiberaceae, is widely distributed in Brazil where it is known as “colônia”. The leaves are commonly used in the treatment of hypertension and dyspepsia, however, the effects of A. zerumbet extracts and isolated
Rev. bras. farmacogn.. Publicado em: 2017-10
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5. Copper(II) Nitroaromatic Schiff Base Complexes: Synthesis, Biological Activity and Their Interaction with DNA and Albumins
Copper(II) complexes of the Schiff base ligands 2-((5-nitrofuran-2-yl)methyleneamino)phenol (HL1) and 2-(4-nitrobenzylideneamino)phenol (HL2) were prepared and characterized using physicochemical and spectroscopic techniques. In these complexes the Schiff base ligands acted as a bidentate donor bound to Cu2+ through the oxygen and nitrogen atoms in the depro
J. Braz. Chem. Soc.. Publicado em: 2017-01
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6. Brazilian propolis protects Saccharomyces cerevisiae cells against oxidative stress
Propolis is a natural product widely used for humans. Due to its complex composition, a number of applications (antimicrobial, antiinflammatory, anesthetic, cytostatic and antioxidant) have been attributed to this substance. Using Saccharomyces cerevisiae as a eukaryotic model we investigated the mechanisms underlying the antioxidant effect of propolis from
Braz. J. Microbiol.. Publicado em: 17/12/2013
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7. Fucana ativa via das Map quinases e inibe a proliferação de células de ovário de hamster chinês (CHO)
Fucana é um termo utilizado para denominar polissacarídeos sulfatados ricos em L-Fucose. As fucanas têm sido estudadas devido suas atividades farmacológicas: antitrombótica, antiproliferativa e antioxidante. Nós extraímos três frações de fucanas da alga Spatoglossum schröederi. Essas fucanas, denominadas de Fuc B 1, Fuc B 1.5 e Fuc B 2, apresentam
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2011
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8. Antiproliferative effects of Tubi-bee propolis in glioblastoma cell lines
Propolis is a resin formed by a complex chemical composition of substances that bees collect from plants. Since ancient times, propolis has been used in folk medicine, due to its biological properties, that include antimicrobial, anti-inflammatory, antitumoral and immunomodulatory activities. Glioblastoma is the most common human brain tumor. Despite the imp
Genetics and Molecular Biology. Publicado em: 2011
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9. Genotoxic effect of alkaloids
Because of the increased use of alkaloids in general medical practice in recent years, it is of interest to determine genotoxic, mutagenic and recombinogenic response to different groups of alkaloids in prokaryotic and eucaryotic organisms. Reserpine, boldine and chelerythrine did not show genotoxicity response in the SOS-Chromotest whereas skimmianine showe
Publicado em: 2010
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10. Avaliação genotóxia e antigenotóxica da curcumina contra a toxicidade induzida pela cisplatina em culturas de células PC12 / Genotoxicity and antigenotoxicity evaluation of curcumin against induced toxicity of cisplatin in PC12 cells.
Several therapies are used for treating cancer and the importance of chemotherapy can be emphasized in many protocols of treatment. One of the oldest and most used drugs in chemotherapy is the cisplatin which, with its more than thirty years of clinical practice, has demonstrated its effectiveness being incorporated into the protocol of a variety of tumor tr
Publicado em: 2008
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11. Efeito citotóxico causado por emulsão lipídica contendo 7-cetocolesterol (OxLE) em cultura de células tumorais / Cytotoxic effects caused by 7-ketocholesterol-containing emulsion (OXLE) in tumor cells in culture
Oxysterols are oxygenated derivatives of cholesterol that may be formed by autoxidation or by action of specific enzymes. They exhibit a number of biologic activities including inhibition of cellular proliferation and cytotoxicity. Among oxysterols, 7-ketocholesterol (7-KC), that differs form cholesterol by a functional ketone group at C7, is known to induce
Publicado em: 2004
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12. Distinct Glucocorticoid Receptor Transcriptional Regulatory Surfaces Mediate the Cytotoxic and Cytostatic Effects of Glucocorticoids
Glucocorticoids act through the glucocorticoid receptor (GR), which can function as a transcriptional activator or repressor, to elicit cytostatic and cytotoxic effects in a variety of cells. The molecular mechanisms regulating these events and the target genes affected by the activated receptor remain largely undefined. Using cultured human osteosarcoma cel
American Society for Microbiology.