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1.
Rev. méd. Panamá ; 43(3): 68-70, 31 de diciembre de 2023.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1524226

ABSTRACT

La rotura espontánea de bazo es una complicación infrecuente pero muy grave de la mononucleosis infecciosa. Dada la urgencia con la que suele presentarse tal situación, la esplenectomía suele ser la opción quirúrgica más utilizada. Presentamos el caso de un paciente en el que con el diagnóstico de rotura esplénica espontánea se somete a laparoscopia diagnóstica en la que se consigue la preservación del bazo con buena evolución clínica. A la luz de este paciente, consideramos que, en caso de estabilidad clínica y hematomas subcapsulares de bazo, la laparoscopia con preservación esplénica es una opción viable y con buenos resultados. (provisto por Infomedic International)


Spontaneous rupture of the spleen is a rare but very serious complication of infectious mononucleosis. Given the urgency with which such a situation usually presents, splenectomy is usually the most used surgical option. We present the case of a patient diagnosed with spontaneous splenic rupture who underwent diagnostic laparoscopy in which spleen preservation was achieved with good clinical evolution. In the light of this patient, we consider that, in the case of clinical stability and subcapsular haematomas of the spleen, laparoscopy with splenic preservation is a viable option with good results. (provided by Infomedic International)

2.
Rev. argent. microbiol ; 55(2): 10-10, jun. 2023. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1449408

ABSTRACT

Abstract We evaluated the microbial composition of water kefir grains and beverage overthe course of one year to determine whether the number and type of microorganisms changedover the time. Bacteria and yeast colonies with different morphologies were isolated fromwater kefir and their antimicrobial activity was evaluated against Paenibacillus larvae andAscosphaera apis. A chemical characterization of kefir was also carried out. Our results con-firmed that bacteria and yeasts were more numerous in kefir grains compared with those in thebeverage. The counts of microorganisms declined, although an important microbial community was still present in kefir after the long storage period. Eleven strains which inhibited bee pathogens were isolated from kefir. Genotypic results demonstrated that these isolates included Lentilactobacillus hilgardii, Lentilactobacillus buchneri and Saccharomyces cerevisiae. Thus, water kefir may be an innovative source of potential probiotic strains for bee nutrition in order to control honeybee diseases.


Resumen Evaluamos la composición microbiana del kéfir de agua durante un ano para determinar si la cantidad y el tipo de microorganismos cambiaban con el tiempo. Se aislaron colonias de bacterias y de levaduras con diferentes morfologías, y su actividad antimicrobiana se evaluó frente a Paenibacillus larvaey Ascosphaeraapis. También se realizó una caracterización química del kéfir. Nuestros resultados confirmaron que las bacterias y las levaduras eran más numerosas en los gránulos de kéfir en comparación con la parte líquida. Los recuentos de microorganismos disminuyeron, aunque una cantidad igualmente importante se encontró en el kéfir después de un año. Se aislaron del kéfir once cepas que inhibieron los mencionados patógenos de abejas. Los resultados genotípicos demostraron que estos aislamientos eran Lentilactobacillus hilgardii, Lentilactobacillus buchneri y Saccharomyces cerevisiae. Por lo tanto, el kéfir de agua podría ser una fuente innovadora de potenciales cepas probióticas para contribuir a la nutrición y sanidad de las abejas.

3.
Rev. Soc. Venez. Microbiol ; 35(2): 95-102, dic. 2015. ilus, tab
Article in Spanish | LILACS | ID: biblio-842854

ABSTRACT

Los ceparios o colecciones de microorganismos son fuentes de recursos genéticos cuyo propósito es la preservación de la diversidad biológica, garantizando su disponibilidad para actividades de docencia, investigación y comerciales. En este trabajo se verificó la viabilidad, pureza y características biológicas de las bacterias que conforman el cepario del Instituto de Ciencias Biológicas de la Universidad de Ciencias y Artes de Chiapas, y se organizó y estructuró la información obtenida en un portal virtual, para propiciar la cooperación académica. El cepario cuenta con 33 microorganismos, la mayoría del género Streptococcus y Escherichia (45,1 y 21,2%, respectivamente). Del primer género, se confirmó la identificación de S. pyogenes (40%), exhibiendo la mayoría genes que codifican para DNAsas. Con respecto al segundo género, un 58,3% de las bacterias fueron confirmadas taxonómicamente como E. coli. De esta especie, la colección cuenta con las cepas prototipo causantes de diarrea y que han preservado sus rasgos genéticos por más de cinco años. Dicho acervo ha impulsado actividades de docencia e investigación, a nivel local e internacional. Es importante que los ceparios sean fuentes sustentables de recursos biológicos, para la adquisición y suministro de especies bacterianas, con la finalidad de fomentar la interacción con la comunidad académica.


Strain collections or bacterial culture collections are genetic resources whose purpose is the preservation of biological diversity, ensuring their availability for teaching, research and trade activities. In this work viability, purity and biological characteristics of bacteria from the bacterial collection of the Institute of Biological Sciences, University of Science and Arts of Chiapas were studied. Information was structured and organized in a virtual site, to promote academic cooperation. The strain bank includes 33 microorganisms, most of the genus Streptococcus and Escherichia (45.1 and 21.2%, respectively). For Streptococcus, the identification of S. pyogenes (40%) was confirmed, by determination of most DNAses encoding genes. For Escherichia 58.3% were taxonomically confirmed as E. coli. For this species, the collection includes typical strains that produce diarrhea and their genetic traits have been preserved for more than five years. This bacterial culture collection has stimulated teaching and research activities at local and international levels. Strain collections are important sources of biological material which can provide bacterial species, in order to encourage interaction with the academic community.

4.
Neotrop. ichthyol ; 11(3): 649-660, jun. 2013. tab, graf
Article in English | LILACS | ID: lil-690101

ABSTRACT

Morphometrical and histological techniques were employed to characterize Pagrus pagrus larvae nutritional condition. Larvae were reared in laboratory under controlled conditions with the main objective of testing whether these methodologies allowed finding differences between larvae from different feeding treatments. Once yolk was consumed (three days after hatching) larvae were assigned to a feeding treatment: starved during the whole experiment; delayed feeding, starved during three days; fed during the entire experiment. Algae (Nannochloropsis oculata) and rotifers (Brachionus plicatilis) were provided to larvae for feed treatments. Larvae were fixed daily; for morphometrical purposes in 5% formaldehyde solution, and in Bouin for histological sections. Results herein obtained showed that both methodologies are sensitive enough to distinguish larvae characterized by different nutritional condition states obtained from the feeding treatments. Consequently, these methodologies could be employed in wild red porgy larvae in order to asses their nutritional condition. These techniques could also be employed to check larval quality obtained with aquaculture purposes to estimate the effects of changes in rearing protocols or kind of food supply and thus, to guaranty a higher survival of early developmental stages of reared larvae.


Con el objeto de determinar si las técnicas morfométricas e histológicas permiten diferenciar larvas en estado de inanición de las sometidas a tratamientos de alimentación, ejemplares de Pagrus pagrus fueron criados en laboratorio bajo condiciones controladas. Una vez que el vitelo fue consumido (tres días luego de la eclosión) las larvas fueron sometidas a diferentes tratamientos de alimentación: completamente privadas de alimento, privadas de alimento durante tres días y luego alimentadas, y alimentadas durante todo el experimento. Algas (Nannochloropsis oculata) y rotíferos (Brachionus plicatilis) fueron proporcionados a las larvas de los tratamientos de alimentación. Diariamente se fijaron ejemplares de los tres tratamientos en formol 5% para estudios morfométricos y en Bouin para estudios histológicos. Los resultados obtenidos dan evidencias de que las metodologías presentadas son suficientemente sensibles para determinar diferencias en la condición de larvas sometidas a los tratamientos de alimentación. Por lo tanto, podrían ser empleadas para determinar la condición nutricional de las larvas de besugo recolectadas en el mar. Por otra parte, éstas metodologías podrían ser empleadas para determinar la calidad de larvas producidas en acuicultura y evaluar los efectos de modificaciones introducidas en los protocolos de crianza o en el tipo de alimento suministrado con el objeto de mejorar la supervivencia de los estadios tempranos de desarrollo.


Subject(s)
Animals , Animal Nutritional Physiological Phenomena/physiology , Larva , Fishes/classification , Perciformes/classification , Starvation
5.
Biocell ; 25(2): 131-138, Aug. 2001.
Article in English | LILACS | ID: lil-335881

ABSTRACT

The aim of this work was the establishment of embryogenic calli and cell suspensions from different explants and cultivars of weeping lovegrass, Eragrostis curvula (Schrad.) Nees, to be used as targets for biolistic transformation. Calli were initiated from immature inflorescences, seeds, embryos, leaf bases and root tips. Modified MS medium (Murashige and Skoog, 1962) was used for calli induction and proliferation. Cell suspensions were established and maintained in AAF medium (Wang et al., 1993). Morphogenic calli, embryogenic cell suspensions of moderate growth rate--consisting mainly of compact proembryogenic cell clusters- and green plants were obtained from all the explants and cultivars assayed, except root tips. Both, explant and genotype were very important factors to be considered in order to obtain a morphogenic response and to establish cell suspensions from this grass. The statistical analysis detected interaction between both factors, explants and genotypes. Immature inflourescences were the best source of explant and Kromdraai was the cultivar that showed the best morphogenic response (expressed as the percentage of calli/explant and the percentage of calli with green spots--every green spot developed into green plants-) with inflourescences, embryos and leaf bases. For Morpa and Don Pablo embryos as explants were less responsive than seeds and leaf bases. There were no differences in leaf bases for all the three cultivars analysed.


Subject(s)
Poaceae , Seeds , Culture Techniques , Plant Leaves , Poaceae , Plant Roots/cytology , Plant Roots/growth & development , Regeneration , Seeds
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