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Now showing items 11-20 of 25
Científicos estudian proceso de contagio de la Brucella
(Oficina de Comunicación, Universidad Nacional, 2020-11)
Elías Barquero académico de la Escuela de Medicina Veterinaria (EMV) y Edgardo Moreno, profesor emérito de la Universidad Nacional (UNA), publicaron recientemente una investigación sobre el papel de ...
Veterinarios explican cómo la Brucella resiste acción del sistema inmune
(Oficina de Comunicación, Universidad Nacional, 2019-02)
Estudio de la Escuela de Medicina Veterinaria evidenció que dicha bacteria resiste y se replica en las células encargadas de contrarrestar las infecciones bacterianas en el organismo
Brucella-Salmonella lipopolysaccharide chimeras are less permeable to hydrophobic probes and more sensitive to cationic peptides and EDTA than are their native Brucella sp. counterparts
(American Society for Microbiology, 1996-08-12)
A rough (R) Brucella abortus 45/20 mutant was more sensitive to the bactericidal activity of polymyxin B and lactoferricin B than was its smooth (S) counterpart but considerably more resistant than Salmonella montevideo. ...
Characterization of Brucella abortus and Brucella melitensis native haptens as outer membrane O-type polysaccharides independent from the smooth lipopolysaccharide
(American Society for Microbiology, 1996)
Brucella native haptens (NHs) extracted with hot water from smooth (S)- type B. abortus and B. melitensis were purified to high levels of serological activity and compared with the polysaccharide obtained by acid hydrolysis ...
Characterization of Brucella abortus lipopolysaccharide macrodomains as mega rafts
(Blackwell Science, 2005-09-28)
The lipopolysaccharides (LPS) of intracellular Proteobacteria such as Brucella, Chlamydia, Legionella and Rickettsia, have properties distinct from enterobacterial LPSs. These properties include deficient LPS induction of ...
In search of a bacterial spedes definition
(Universidad de Costa Rica., 1997)
The bacterial species concept was examined within the framework of plant and animal associated a-2 proteobacteria, taking into consideration the phylogenetic, taxonomic and biological approaches as well as the microbiologists' ...
MyD88, but not Toll-Like receptors 4 and 2, Is required for efficient clearance of Brucella abortus
(American Society for Microbiology, 2005-08)
It is not clear how the host initially recognizes and responds to infection by gram-negative pathogenic
Brucella spp. It was previously shown (D. S. Weiss, B. Raupach, K. Takeda, S. Akira, and A. Zychlinsky, J.
Immunol. ...
Hallazgos anatomopatológicos en virtopsia, necropsia, bacteriología e histopatología del sistema nervioso central de cetáceos encallados en las playas de Costa Rica durante el periodo 2017-2021
(Universidad Nacional, Costa Rica, 2021-10-08)
La fauna de cetáceos en Costa Rica incluye una estimación de 30 especies,
esta biodiversidad representa el 33% de las especies de cetáceos del mundo y, por lo
tanto, anualmente se reportan encallamientos de cetáceos a ...
Brucella melitensis: a nasty bug with hidden credentials for virulence
(The National Academy of Sciences, 2002-01-08)
On September 23, 1905, a cargo carrying 60 goats from Malta arrived in New York. The herd was kept in quarantine because of several deaths that occurred during the journey. Crewmen, an agent from the U.S. Bureau of Animal ...
Genome evolution within the alpha Proteobacteria: why do some bacteria not possess plasmids and others exhibit more than one diferent chromosome?
(Elsevier, 1998)
Animal intracellular Proteobacteria of the alpha subclass without plasmids and containing one or more chromosomes are
phylogenetically entwined with opportunistic, plant-associated, chemoautotrophic and photosynthetic ...