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| Malini,Maressa; Marin-Morales,Maria Aparecida; Mantovani,Mário Sérgio; Jamal,Claudia Masrouah; Nati,Natália; Passos,Tatiane da Silva; Matsumoto,Silvia Tamie. |
| An aqueous extract of Rhizophora mangle L. bark is used as raw material in pottery making in the State of Espirito Santo, Brazil. This extract presents large quantities of tannins, compounds possessing antioxidant properties. Tannin antioxidant activity, as a plant chemical defense mechanism in the process of stabilizing free radicals, has been an incentive to studies on anti-mutagenicity. The present work aimed to evaluate possible antimutagenic activity of a R. mangle aqueous extract, using the Allium cepa test-system and micronuclear (MN) assay with blockage of cytokinesis in Chinese hamster ovary cells (CHO-K1). The Allium cepa test-system indicated antimutagenic activity against the damage induced by the mutagenic agent methyl methanesulfonate. A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rhizophora mangle; Antimutagenicity; Allium cepa; CHO-K1. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000100029 |
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| Swiech,Kamilla; da Silva,Gracinda M.C; Zangirolami,Teresa C; Iemma,Mônica R.C; Selistre-de-Araújo,Heloísa S; Suazo,Cláudio A.T. |
| We present kinetic and physiological data regarding the culturing of rCHO-K1 cells on various microcarriers, to evaluate the potential of this culture strategy for mass production of these cells and expression of a recombinant disintegrin. Cultures were performed in 500 mL spinner flasks in DMEM culture medium with 10% v/v fetal calf serum, gently shaken at 37ºC, pH 7.4, in a 10% v/v CO2 atmosphere. The following values were obtained, respectively, for the adhesion time-constant Ka (h) and specific growth rate μmax (d-1) on each microcarrier: Cytodex 1 (0.91, 0.45), Cultispher S (0.28, 0.34), Immobasil FS (0.85, 0.52) and Pronectin F (5.12, 0.67). Metabolic characteristics showed some variation among the cultures with the four microcarriers, the... |
| Tipo: Journal article |
Palavras-chave: Adhesion; Animal cell; CHO-K1; Growth; Microcarrier; Recombinant disintegrin. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582007000200004 |
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| Raffoul,Tássia; Swiech,Kamilla; Arantes,Mabel Karina; Sousa,Álvaro Paiva Braga de; Mendonça,Ronaldo Zucatelli; Pereira,Carlos Augusto; Suazo,Cláudio Alberto Torres. |
| The aim of this work was to evaluate the potential of hemolymph utilization as a culture medium supplement to cultivate the animal cell CHO-K1. For this purpose 1% v/v of hemolymph was added to DMEM medium containing 10% v/v of FBS and 1 or 4.5 g/L of glucose. The culture was grown in spinner flasks incubated in a 10% v/v CO2 environment, at 37ºC, with the Cytodex 1 microcarrier. Comparing the results obtained from the culture with hemolymph against those without hemolymph, a positive influence of the hemolymph was observed, as the experiment with hemolymph presented a 52% higher cell concentration and a higher productivity of up to 40%. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal cell; CHO-K1; Microcarrier; Growth; Attachment; Hemolymph. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000400011 |
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