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Oliveira,Isadora Sousa de; Manzini,Rafaella Varzoni; Ferreira,Isabela Gobbo; Cardoso,Iara Aimê; Bordon,Karla de Castro Figueiredo; Machado,Ana Rita Thomazela; Antunes,Lusânia Maria Greggi; Rosa,José Cesar; Arantes,Eliane Candiani. |
Abstract Background: In recent decades, snake venom disintegrins have received special attention due to their potential use in anticancer therapy. Disintegrins are small and cysteine-rich proteins present in snake venoms and can interact with specific integrins to inhibit their activities in cell-cell and cell-ECM interactions. These molecules, known to inhibit platelet aggregation, are also capable of interacting with certain cancer-related integrins, and may interfere in important processes involved in carcinogenesis. Therefore, disintegrin from Crotalus durissus collilineatus venom was isolated, structurally characterized and evaluated for its toxicity and ability to interfere with cell proliferation and migration in MDA-MB-231, a human breast cancer... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crotalus durissus collilineatus; Non-RGD disintegrin; Cell migration; Cell adhesion; Human breast cancer; MDA-MB-231. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992018000100319 |
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Santos,Graciela Cristina dos; Antunes,Lusânia Maria Greggi; Santos,Antonio Cardozo dos; Bianchi,Maria de Lourdes Pires. |
According to clinical and pre-clinical studies, oxidative stress and its consequences may be the cause or, at least, a contributing factor, to a large number of neurodegenerative diseases. These diseases include common and debilitating disorders, characterized by progressive and irreversible loss of neurons in specific regions of the brain. The most common neurodegenerative diseases are Parkinson's disease, Huntington's disease, Alzheimer's disease and amyotrophic lateral sclerosis. Coenzyme Q10 (CoQ10) has been extensively studied since its discovery in 1957. It is a component of the electron transportation chain and participates in aerobic cellular respiration, generating energy in the form of adenosine triphosphate (ATP). The property of CoQ10 to act as... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coenzyme Q10; Antioxidant; Oxidative stress; Neurodegenerative diseases. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000400002 |
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Mendonça,Leonardo Meneghin; Machado,Carla da Silva; Teixeira,Cristiane Cardoso Correia; Freitas,Luis Alexandre Pedro de; Bianchi,Maria Lourdes Pires; Antunes,Lusânia Maria Greggi. |
Abstract Curcumin (CMN) is the principal active component derived from the rhizome of Curcuma longa (Curcuma longa L.). It is a liposoluble polyphenolic compound that possesses great therapeutic potential. Its clinical application is, however, limited by the low concentrations detected following oral administration. One key strategy for improving the solubility and bioavailability of poorly water-soluble drugs is solid dispersion, though it is not known whether this technique might influence the pharmacological effects of CMN. Thus, in this study, we aimed to evaluate the antioxidant and antigenotoxic effects of CMN formulated in a solid dispersion (CMN SD) compared to unmodified CMN delivered to Wistar rats. Cisplatin (cDDP) was used as the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Curcuma longa; Antigenotoxicity; Micronucleus test; DNA damage; Comet assay. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000400490 |
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Almeida,Mara Ribeiro; Darin,Joana D'Arc Castania; Hernandes,Lívia Cristina; Ramos,Mônica Freiman de Souza; Antunes,Lusânia Maria Greggi; Freitas,Osvaldo de. |
Copaiba oil-resin, extracted from the trunk of Copaifera, and traditionally used in folk medicine in the treatment of various disorders, has been shown to be an effective antiinflamatory, antitumor, antitetanus, antiseptic and antiblenorrhagea agent. As, there are few studies evaluating its genotoxicity, this aspect of the commercial oil-resin, and its volatile and resinous fractions, were evaluated in mice by comet assay and micronucleus (MN) test. A single dose of oil resin, volatile or resin fractions (500; 1,000 or 2,000 mg/kg b.w.) was administered by gavage. The chemical compositions of Copaiba oil resin and its fractions was analyzed by gas chromatography. According to comet assaying, treatment with either one did not increase DNA damage, and as to... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Copaiba oilresin; Genotoxicity; Comet assay; Micronucleus. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000400018 |
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