Results: 10

PVP solid dispersions containing Poloxamer 407 or TPGS for the improvement of ursolic acid release

Abstract Solid dispersions (SDs) of ursolic acid (UA) were developed using polyvinylpyrrolidone K30 (PVP K30) in combination with non-ionic surfactants, such as D-α-tocopherol polyethylene glycol 1000 succinate (TPGS) or poloxamer 407 (P407) with the aim of enhancing solubility and in vitro release ...

Formulation, Optimization, in vitro and in-vivo evaluation of levofloxacin hemihydrate Floating Tablets

Abstract The objective of the present investigation was to design, optimize and characterize the gastro retentive floating levofloxacin tablets and perform in-vivo evaluation using radiographic imaging. The floating tablets were prepared by using polymers i.e hydroxy propyl methyl cellulose (HPMC-K4M) an...

Physicochemical characterization and cosmetic applications of Passiflora nitida Kunth leaf extract

Abstract Passiflora nitida Kunth, an Amazonian Passiflora species, is little studied, although the specie’s high biological potential. Herein the plant’s pharmacognostic characterization, extract production, antioxidant potential evaluation, and application of this extract in cosmetic products is rep...

Historia y evolución de la radiología en Centroamérica
History and evolution of radiology in Central America

En 1895, el físico alemán Wilhelm Conrad Röntgen descubrió una nueva forma de radiación que la llamó“radiación X” para denotar su naturaleza desconocida, un año después del descubrimiento; Guatemala yChile fueron los primeros países de América Latina que utilizaron la nueva tecnología. El...

Protection effect of sanguinarine on whole-body exposure of X radiation in BALB/c mice

Braz. j. pharm. sci; 50 (1), 2014
To investigate the effects of sanguinarine (SAN) on acute radiation induced injury in mice, 45 mice were randomly divided into control, 10 Gy and SAN+10 Gy groups. Mice in the 10 Gy and SAN+10 Gy groups were exposed to single X-ray radiation with an accumulated dose of 10 Gy. Mice in the SAN+10 Gy group ...

Uma exposição acidental aos raios X de um difratômetro
Accidental exposure to the X-ray of a diffractometer

As mãos de três trabalhadores foram irradiadas acidentalmente numa indústria em Camaçari, Estado da Bahia, Brasil. O diagnóstico clínico de radiodermite aguda foi possível, antes mesmo da confirmação dosimétrica da ocorrência, em virtude das manifestações cutâneas exibidas, precedidas por u...

Conhecimento da equipe de saúde sobre os efeitos e os meios de proteçäo do Rx

Acta paul. enferm; 11 (2), 1998
As autoras realizaram um estudo nas Unidades de Tratamento Intensivo adulto e pediátrica com o objetivo de identificar o conhecimento que a equipe de saúde tem sobre os meios de proteçäo e os efeitos do RX. Utilizaram dosímetros para medir a quantidade de radiaçäo ambiental emitida por um período...

Conocimientos sobre tuberculosis y gestación en obstetrices. A proposito de una encuesta
Midwive's knowledge on tuberculosis and pregnancy. A survey

Rev. méd. hered; 4 (4), 1993
Con la finalidad de evaluar los conocimientos en relación a la tuberculosis y gestación, practicamos una encuesta en 152 obstetrices. Cuarenta y tres (28 por ciento) consideraron que el PPD no tenia utilidad pués era predecible que en las gestantes fuera positivo. Treinta (20 por ciento) opinaron que ...