Abstract The use of a free-radical polymerization inhibitor, butylhydroxytoluene (BHT), and a common photo-initiator, camphorquinone (CQ), to reduce polymerization stress in dental composite was investigated in this study. Samples were prepared by mixing Bis-GMA, UDMA, and TEGDMA at a 1:1:1 ratio (wt%), ...
Análisis de Varianza,
Bisfenol A Glicidil Metacrilato/química,
Hidroxitolueno Butilado/química,
Resinas Compuestas/química,
Luces de Curación Dental,
Módulo de Elasticidad,
Ensayo de Materiales,
Metacrilatos/química,
Docilidad,
Polietilenglicoles/química,
Polimerizacion,
Ácidos Polimetacrílicos/química,
Poliuretanos/química,
Valores de Referencia,
Estrés Mecánico,
Terpenos/química,
Factores de Tiempo
Os óleos essenciais da Pimenta pseudocaryophyllus (Gomes) Landrum de planta de populações naturais de três ecossistemas, localizados na Ilha de Cananéia, região de restinga, no Morro da Cataia, cidade de Cajati, região de encosta, ambas em área de Mata Atlântica, e na Reserva Natural Morro Grand...
BACKGROUND: Isodon rugosus is used traditionally in the management of hypertension, rheumatism, tooth-ache and pyrexia. Present study was arranged to investigate I. rugosus for phytoconstituents, phytotoxic and cytotoxic activities to explore its toxicological, pharmacological potentials and to rationali...
Isodon/química,
Fitoterapia,
Extractos Vegetales/farmacología,
Saponinas/análisis,
Alcaloides/análisis,
Antraquinonas/análisis,
Artemia/efectos de los fármacos,
Flavonoides/análisis,
Glicósidos/análisis,
Componentes Aéreos de las Plantas/química,
Aceites de Plantas/análisis,
Raíces de Plantas/crecimiento & desarrollo,
Taninos/análisis,
Terpenos/análisis,
Cloroformo,
Citotoxinas,
Hexanos,
Metanol
Metabolic engineering was formally defined more than two decades ago (Bailey, 1991) and it is now an established discipline. Metabolic engineering is generally defined as the directed improvement of product formation or cellular properties through the modification of specific biochemical reactions or the...
Dental caries is considered a multi-factorial, infectious, chronic, localized, post-eruptive, transmissible disease that leads to the destruction of dental hard tissue. The recognition of Streptococcus mutans as the major bacterial species involved in dental caries has led to the implementation of preven...
Cariostáticos/farmacología,
Extractos Vegetales/farmacología,
Rubiaceae,
Streptococcus mutans/efectos de los fármacos,
Streptococcus sobrinus/efectos de los fármacos,
Fraccionamiento Químico,
CromatografíaMétodos,
Cromatografía Liquida,
Etanol/química,
Inmunodifusión,
Metanol/química,
Cloruro de Metileno/química,
Pruebas de Sensibilidad Microbiana,
Extractos Vegetales/química,
Solventes/química,
Terpenos/química,
Vacio
Qualitative and quantitative analyses of the volatile constituents from resin of Protium heptaphyllum (Aubl.) Marchand subsp. ulei (Swat) Daly (PHU), and Protium heptaphyllum (Aubl.) Marchand subsp. heptaphyllum (PHH), Burseraceae were performed using GC-MS and GC-FID. The resins were collected around th...
Fornece dados sobre o potencial embriofeto-tóxico do alfa-terpineno no rato. O alfa-terpinemo dissolvido em óleo de milho, foi administrado por entubaçäo gástrica a ratas wistar do dia 6 ao dia 15 de gravidez. As ratas foram pesadas diariamente. No dia 21 de gestaçäo as fêmeas foram anestesiadas ...
Glycosides are the bioactive components of many famous Chinese medicines. Here reported are some bioactive glycosides we discovered from Chinese medicines in recent years. (1) Pheolic glycosides from Chinese medicines: Gastrodia elata, acontium austroynanense and Helicia erratica, three bioactive phenoli...
Saponinas/aislamiento & purificación,
Esteroides/aislamiento & purificación,
Esteroides/farmacología,
Edulcorantes/aislamiento & purificación,
Terpenos/aislamiento & purificación,
Terpenos/farmacología,
Anticonvulsivantes/aislamiento & purificación,
Antineoplásicos Fitogénicos/aislamiento & purificación,
Medicamentos Herbarios Chinos/química,
Glicósidos/uso terapéutico,
Hepatitis/tratamiento farmacológico
In contrast to China where vegatation is predominantly herbaceous, vegetation in Brazil is commonly arboreous. This fact may explain why Chinese drugs are usually acetate derived, while actual and potential natural therapeutic agents from Brazil are mostly shikimate derived. Only relatively few compounds...
