Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 6 de 6
Filtrar
Mais filtros











Intervalo de ano de publicação
1.
Rev. luna azul ; (40): 69-84, ene.-jun. 2015. ilus, graf, tab
Artigo em Espanhol | LILACS | ID: lil-749480

RESUMO

En Colombia el cultivo de plátano ocupa uno de los principales renglones de la economía; hace parte de la canasta familiar y es una fuente de empleo en las zonas donde se cultiva. La producción de este frutal se ve amenazada por el ataque de nematodos fitoparásitos que afectan el sistema radical, disminuyen la absorción de nutrientes y sirven como puerta de entrada a patógenos. Debido a esto, se requieren manejos que permitan la regulación de las poblaciones mediante estrategias que no atenten contra el equilibrio del ecosistema y que presenten una ventaja competitiva frente a los tratamientos tradicionales. En este estudio se evaluó la respuesta poblacional de fitonematodos del plátano Dominico Hartón, la presencia de hongos micorrícicoarbusculares (HMA) y la actividad de lombrices a la inoculación con HMA, lixiviado de compost de raquis de plátano y lombricompost. Los resultados obtenidos en la investigación sugieren que la respuesta de la población de fitonematodos a los tratamientos evaluados, mostró gran dependencia de las características parasíticas de cada género y que la aplicación de lombricompost, HMA y lixiviado de raquis de plátano pueden tener potencial en la regulación de las poblaciones de fitonematodos en el cultivo.


Plantain cultivation in Colombia occupies one of the main areas of the economy: plantain is part of the shopping basket and is a source of employment in the areas where it is cultivated. The production of this fruit is threatened by the attack of phytoparasitic nematodes affecting the root system, reducing the absorption of nutrients and serving as a gateway to pathogens. Because of this, maneuvers which allow the regulation of populations through strategies that do not threaten the balance of the ecosystem and that show a competitive advantage over traditional treatments. The phytonematodes population response of Dominico-Harton plantain, the presence of arbuscular mycorrhizal fungi (AMF) and earthworm activity to HMA inoculation, leachate from plantain compost rachis and earthworm compost were evaluated in this study. The results obtained from this research suggest that the phytonematodes population response to the treatments evaluated, showed strong dependence on parasitic characteristics of each gender and than the application of earthworm compost, AMF and leachate from plantain compost rachis may have a potential in the regulation of phytonematodes populations in cultivation.

2.
Rev. colomb. radiol ; 18(2): 2143-2147, jun. 2007. ilus
Artigo em Espanhol | LILACS | ID: lil-522695

RESUMO

La piomiositis es una rara infección bacteriana, caracterizada por la formación de abscesos en el músculo estriado. el estafilococo aureus es el germen más frecuentemente cultivado, aunque se han reportado otros patógenos. Puede ser caracterizada como unifocal o multifocal y primaria o secundaria de acuerdo a su fisiopatología. Evoluciona de forma lenta y gradual, por lo que requiere un gran índice de sospecha clínica y el apoyo de imágenes para su diagnóstico precoz. En este artículo se presenta el caso de una niña con piomiositis multifocal y se realiza una revisión de la literatura.


Assuntos
Humanos , Infecções , Dor , Músculos Psoas , Tomografia Computadorizada por Raios X
3.
Rev. guatemalteca cir ; 12(2): 42-45, mayo-ago. 2003. ilus
Artigo em Espanhol | LILACS | ID: lil-362124

RESUMO

Introducción:Con el advenimiento y desarrollo de la cirugía laparoscópica, se han desarrollado al mismo tiempo técnicas para un gran número de operaciones efectuadas por cirugía abierta o convencional. Las ventajas atribuibles a la cirugía laparoscópica acompañan a estas nuevas técnicas y conforme el cirujano se va familiarizando con ellas, éstas se vuelven más simples y con menor morbilidad. La gastrostomía por laparoscopía es utilizada desde 1993. Ha sido efectuada como un procedimiento único o acompañando a otros procedimientos intraabdominales.Material y métodos: Presentamos una técnica de Gastrostomía laparoscópica en niños, muy similar a la descrita en la literatura pero adaptada a las facilidades o carencias de nuestro medio. Se presentan 22 casos pediátricos a quienes se les practicó una gastrostomía laparoscópica, utilizando únicamente 2 puertos de acceso de 5 mm. El estómago es alcanzado a través del puerto en donde quedará la sonda de gastrostomía y fijado a la pared abdominal por 2 puntos percutáneos (la sonda en medio de ambos) colocados bajo visión directa.Resultados. El tiempo promedio de duración del procedimiento es de 12 minutos. No existió ningún tipo de complicación relacionado con la cirugía. En todos los casos no quedaron cicatrices visibles excepto el de la gastrostomía cuando ésta es retirada . El procedimiento se ha efectuado aún en pacientes con cirugía abdominal previa.Conclusiones. Creemos que esta alternativa es un método sencillo, seguro, rápido y muy fácil de ser reproducido.


Assuntos
Humanos , Masculino , Pré-Escolar , Feminino , Lactente , Criança , Gastrostomia , Laparoscopia
4.
Bol Asoc Med P R ; 83(5): 181-4, 1991 May.
Artigo em Inglês | MEDLINE | ID: mdl-1930469

RESUMO

The aim of this study was to determine the prevalence of dermatophyte feet infection among students enrolled in swimming courses at a university swimming pool. Tinea pedis infection was determined on two occasions. The first study took place on the first day of classes and the second on day twelve of swimming lessons. Culture and KOH examination of the interdigital skin scrapings of the left foot showed superficial foot infection with dermatophytes or Candida albicans in 13.2% of the students (11/83) in the first study, and in 22.2% of the students (16/72) in the second study. The most common agent of tinea pedis in the first study was Trichophyton rubrum (82%), infections by T. mentagrophytes (9%) and Epidermophyton floccosum (9%) were less common. At that time, no dermatophyte was recovered from any of 30 floor samples taken from the bathroom and pool facilities. In the second study the following dermatophytes were isolated from the student's feet: T. mentagrophytes (70.6%), T. rubrum (17.6%) and Candida albicans (11.8%). On this occasion T. mentagrophytes was recovered from 5 out of 30 floor samples. It is possible that the frequency of the use of the pool facilities may influence the prevalence of tinea pedis as well as the etiological agent involved in this disease.


Assuntos
Piscinas , Tinha dos Pés/epidemiologia , Feminino , Humanos , Masculino , Prevalência , Tinha dos Pés/microbiologia
5.
P R Health Sci J ; 7(1): 35-8, 1988 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-3375422

RESUMO

The reactivity of seven monoclonal antibodies against the surface antigens of the murine myeloma cell line Sp2/O-Ag 14 was simultaneously analyzed by fluorescence microscopy and flow cytometry. To 1 X 10(6) Sp2/O-Ag 14 cells were added 200 microliters of the monoclonal antibody and the mixture was incubated at 4 degrees C for 30 min. After washing twice with PBS, the Sp2/O-Ag 14 cells were incubated at 4 degrees C for 30 min with a 1:400 dilution of fluoresceinated goat anti-mouse antibodies. Sp2/O-Ag 14 cells were ready for analysis after washing the cells 3 X with PBS. By fluorescence microscopic analysis different patterns of reactivity with monoclonal antibodies were detected. These patterns were identified as: smooth annular, dot-like annular, dot-like patches, diffuse and homogeneous. The observed patterns may represent different cell surface epitopes being recognized by the monoclonal antibodies. Flow cytometry analysis with the EPICS V system showed reactivity of seven monoclonal antibodies with Sp2/O-Ag 14 cell surface epitopes, which ranged from 79 to 90%. Compared to fluorescence microscopy, flow cytometry provides a faster, more sensitive and more accurate quantitative measurement of the reactivity of different monoclonal antibodies against Sp2/O-Ag 14 cell surface antigens.


Assuntos
Anticorpos Monoclonais/análise , Antígenos de Neoplasias/imunologia , Antígenos de Superfície/imunologia , Citometria de Fluxo , Microscopia de Fluorescência , Animais , Camundongos , Células Tumorais Cultivadas/imunologia
6.
Sabouraudia ; 15(3): 273-82, 1977 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-601662

RESUMO

The fruit-eating bat, Artibeus lituratus, was fed known quantities of viable yeast cells and mycelial particles of Paracoccidioides brasiliensis in an attempt to assess the role of this animal in the distribution of this agent in nature. Results of mycosal cultures of the stomach, upper intestine, lower intestine and rectum clearly showed that the fungal cells were unable to survive more than 8 hours in the digestive tract of the bat. The mycelial particles were more susceptible than the yeast and were killed before passing to the rectum. The fungus died rapidly in the voided fecal material. These findings indicate the improbability of isolating P. brasiliensis from the digestive tract of wild captured bats and show that A. lituratus probably plays no role in the distribution of this fungus in nature.


Assuntos
Quirópteros/microbiologia , Fungos/crescimento & desenvolvimento , Paracoccidioides/crescimento & desenvolvimento , Animais , Quirópteros/anatomia & histologia , Quirópteros/fisiologia , Dieta , Fezes/microbiologia , Intestinos/microbiologia , Paracoccidioides/citologia , Estômago/microbiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA