Results: 147

Aplicação da mitomicina C na cirurgia refrativa

Rev. bras. oftalmol; 74 (6), 2015
RESUMO A mitomicina C teve seu uso profilático e terapêutico estabelecido, ao longo dos anos, para diminuir o haze depois da ablação superficial. A mitomicina C é segura e eficaz como uma terapia adjuvante aplicada após um procedimento primário de ceratectomia fotorrefrativa ou após um retratamen...

Antiproliferative evaluation of tall-oil docosanol and tetracosanol over CHO-K1 and human melanoma cells

Electron. j. biotechnol; 18 (4), 2015
Background Polycosanols derived from plant species have traditionally been used in medicine as antiproliferative agents for treating various viruses (primarily the herpes simplex virus). However, few studies have studied their effects on hyperproliferative cell lines. In this work, the antiproliferative ...

Cytotoxicity and hepatoprotective attributes of methanolic extract of Rumex vesicarius L

Biol. Res; 48 (), 2015
BACKGROUND: To evaluate the hepatoprotective potential and invitro cytotoxicity studies of whole plant methanol extract of Rumex vesicarius L. Methanol extract at a dose of 100 mg/kg bw and 200 mg/kg bw were assessed for its hepatoprotective potential against CCl4-induced hepatotoxicity by monitoring act...

Effects of karanjin on cell cycle arrest and apoptosis in human A549, HepG2 and HL-60 cancer cells

Biol. Res; 48 (), 2015
BACKGROUND: We have investigated the potential anticancer effects of karanjin, a principal furanoflavonol constituent of the Chinese medicine Fordia cauliflora, using cytotoxic assay, cell cycle arrest, and induction of apoptosis in three human cancer cell lines (A549, HepG2 and HL-60 cells). RESULTS: MT...

Cytotoxicity, nitric oxide and acetylcholinesterase inhibitory activity of three limonoids isolated from Trichilia welwitschii (Meliaceae)

Biol. Res; 48 (), 2015
BACKGROUND: Limonoids are highly oxygenated compounds with a prototypical structure. Their occurrence in the plant kingdom is mainly confined to plant families of Meliaceae and Rutaceae. Owing to their wide range of pharmacological and therapeutic properties, this study was aimed at investigating the pot...

Influência da aplicação intraoperatória de mitomicina C tópica episcleral na proliferação e diferenciação de células epiteliais córneo-conjuntivais de coelhos

Rev. bras. oftalmol; 73 (3), 2014
Objetivo: Avaliar a influência da mitomicina C a 0,02% (MMC), aplicada em dose única por 3 minutos, na proliferação e diferenciação das células epiteliais da córnea de coelhos. Métodos: A MMC tópica foi aplicada na episclera da área límbica temporal, mediante tecido epitelial corneano intacto...

Evaluación de la actividad antiproliferativa y proapoptótica de compuestos kauranos sobre líneas celulares de leucemia humana

En Venezuela y el mundo, el cáncer es la segunda causa de morbi-mortalidad, y la leucemia es uno de los tipos de cáncer que afecta a nuestra población. La principal características de las celulas linfoides y mieloides presentes en la leucemia es que son pocos funcionales y además no responden a las ...

Immune enhancement activities of silk lutein extract from Bombyx mori cocoons

Biol. Res; 47 (), 2014
BACKGROUND: Declining immune function poses an important clinical challenge worldwide and supplementation with natural products that possessing immune enhancing properties is a promising approach for preventing or delaying immune function decline. Cocoons from yellow silkworms are a significant source of...

Methanol extract from Vietnamese Caesalpinia sappan induces apoptosis in HeLa cells

Biol. Res; 47 (), 2014
BACKGROUND: This study evaluated the cytotoxic activity of extracts from Caesalpinia sappan heartwood against multiple cancer cell lines using an MTT cell viability assay. The cell death though induction of apoptosis was as indicated by DNA fragmentation and caspase-3 enzyme activation. RESULTS: A methan...

Celecoxib decreases growth and angiogenesis and promotes apoptosis in a tumor cell line resistant to chemotherapy

Biol. Res; 47 (), 2014
BACKGROUND: During the last few years it has been shown in several laboratories that Celecoxib (Cx), a non-steroidal anti-inflammatory agent (NSAID) normally used for pain and arthritis, mediates antitumor and antiangiogenic effects. However, the effects of this drug on a tumor cell line resistant to che...