Results: 5032

Efeito de pedilúvio com soluçäo de formalina associado a desgastamento do piso, sobre o quadro clínico de porcas com afecçöes podais
The effect of formalin solution in footbath associated with floor abrasiveness reduction on clinical aspects of lameness in sows

Com o objetivo de verificar o efeito do tratamento dos cascos com uma soluçäo de formalina a 10 por cento em pedilúvio associado a diminuiçäo da abrasividade do piso, sobre a melhoria do quadro clínico de porcas com claudicaçöes, foi desenvolvido um experimento envolvendo 102 fêmeas alojadas em ...

Eficácia clínica e microbiológica da norfloxacina tópica 0,3 no tratamento de infecçöes oculares externas
Clinical and microbiological effectiveness of topical norfloxacin 0,3

Arq. bras. oftalmol; 54 (5), 1991
Foi avaliada a eficácia clínica e microbiológica da norfloxacina a 0,3% contra 24 cepas de Staphylococcus aureus e 15 cepas de anaeróbios isolados de 27 pacientes portadores de infecçäo ocular superficial externa. Comparou-se a eficácia microbiológica da norfloxacina com as da gentamicina, tobram...

Epidemias por salmonella y por shigella, importancia de la vigilancia epidemiologíca y control de la resistencia a los antibióticos
Epidemics by salmonella and shigella, importance of epidemiologic vigilance and control of the antibiotics resistence

El descubrimiento de los antibióticos y su aplicación clínica ha permitido el tratamiento y control de padecimientos infecciosos. Por otra parte, se ha descubierto que algunas enterobacterias desarrollan resistencia a las drogas antimocrobianas causada, principalmente por la presencia de elementos ext...

Structural variations produced in vitro by gonadotrophins and steroid hormones on the cell surfaces of the ovarian epithelium of the chick embryo

El objetivo del presente trabajo fue analizar las variaciones estructurales producidas in vitro por hormonas en las superficies celulares del epitelio ováriaco del embrión de pollo en relación con la maduración del ovario izquierdo y la atrofia del derecho. Explantos de ambos ovarios de embriones de ...

Interstitial cells of the ovaries of the chick embryo: ultraestructural aspects of their innervation

En trabajos previos demostramos que en el ovario derecho atrófico y en la médula del ovario izquierdo funcionante del pollo experimental regresión las células germinales y epiteliales y se preservan las células intersticiales (Avila y col. 1987). El objetivo del presente trabajo fue analizar la rela...

Evaluation of acute administration of natural products with potential diuretic effects, in humans

Mem. Inst. Oswaldo Cruz; 86 (supl.2), 1991
In order to evaluate the potential diuretic effect of two natural products, Elephantopus scaber and Alpinia speciosa, a trial administration was carried out in ten healthy volunteers and the effects compared to the those of a placebo. The substances were given on different days, with a seven day interval...

Genotoxicity of plant extracts

Mem. Inst. Oswaldo Cruz; 86 (supl.2), 1991
Aqueous extracts of seven species used in Brazilian popular medicine (Achyrocline satureoides, Iodina rhombifolia, Desmodium incanum, Baccharis anomala, Tibouchina asperior, Luehea divaricata, Maytenus ilicifolia) were screened to the presence of mutagenic activity in the Ames test (Salmonella/microsome)...

The resistance of seeds of cowpea (Vigna unguiculata) to the cowpea weevil (Callosobruchus maculatus)

Mem. Inst. Oswaldo Cruz; 86 (supl.2), 1991
Cowpea (Vigna unguiculata) seeds are heavily damaged during storage by the bruchid Callosobruchus maculatus. Seeds of some Nigerian varieties showed a strong resistance to this bruchid. By utilizing biochemical and entomological techniques we were able to rule out the paticipation of proteolytic enzyme (...

Advances in pharmacological studies of silymarin

Mem. Inst. Oswaldo Cruz; 86 (supl.2), 1991
Silymarin is the flavonoids extracted from the seeds of Silybum marianum (L) Gearth as a mixture of three structural isomers: silybin, silydianin and silychristin, the former being the most active component. Silymarin protects liver cell membrane against hepatotoxic agents and improves liver function in ...

Pharmacological and toxicological evaluation of Alpinia speciosa

Mem. Inst. Oswaldo Cruz; 86 (supl.2), 1991
Alpinia speciosa Schum or A. nutans is a plant of the Zingiberanceae family, Known popularly as "colony" (colônia) and used as a diuretic and to control hypertensión. We have determinated the concentration of Na+ and K+ found in the alcoholic extract and in the tea concoction. They contained 51.0mEq Na...