Listar Microbiología por título
Mostrando ítems 800-819 de 1168
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p-Bromophenacyl bromide modification of Bothrops asper myotoxin II, a lysine-49 phospholipase A2, affects its pharmacological activities
(1993-09)Modification of Bothrops asper myotoxin II, a lysine-49 phospholipase A2 variant, was carried out with p-bromophenacyl bromide. Modified toxin did not show changes in its charge and immunological properties but two of its ... -
Pan-African polyspecific antivenom produced by caprylic acid purification of horse IgG: an alternative to the antivenom crisis in Africa
(2005-06)A polyspecific Pan-African antivenom has been produced from the plasma of horses immunized with a mixture of the venoms of Echis ocellatus, Bitis arietans and Naja nigricollis, the three most medically important snakes in ... -
Papel potencial de Aedes albopictus Skuse en la transmisión de virus dengue (DENV) en una zona de actividad piñera de Costa Rica
(2019)Objetivo. Evaluar, bajo una perspectiva ecológica, la presencia de Aedes albopictus y su infección natural por virus dengue (DENV) en una zona de actividad piñera de Costa Rica. Método: Se colectaron mosquitos adultos en ... -
Paracoccidioidomicosis, consideraciones de una micosis desatendida
(2021-10-08)El presente trabajo corresponde a una revisión bibliográfica sobre el estado del conocimiento de las especies de Paracoccidioides spp. y los cuadros clínicos asociados a este hongo. La revisión inicia con un marco histórico ... -
Parasitismo imaginario: experiencia clínica y diagnóstica
(2012-06-01)Objetivo: describir los casos de parasitismo imaginario observados en el Laboratorio de Entomología Médica, Facultad de Microbiología, Universidad de Costa Rica durante 2001-2011. Métodos: se describen 9 casos cuyas ... -
Partial efficacy of a Brazilian coralsnake antivenom and Varespladib to neutralize distinct toxic effects induced by a sublethal Micrurus dumerilii carinicauda envenoming in rats
(2022)In this work, we reported the efficacy of a combination of Brazilian therapeutic coralsnake antivenom (CAV) and varespladib (phospholipase A2 inhibitor – VPL) in partially neutralizing selected toxic effects of Micrurus ... -
La participación comunitaria como recurso para la prevención del dengue en una comunidad urbana de San José, Costa Rica
(2005-06-01)Se implementó un modelo de participación comunitaria en dos de los cuatro sectores del caserío "La Carpio ",Distrito Uruca,San José, Costa Rica,el cual constituyó el primer poblado del Gran Área Metropolitana de San José ... -
Participatory risk mapping of malaria vector exposure in northern South America using environmental and population data
(2014-03-01)Malaria elimination remains a major public health challenge in many tropical regions, including large areas of northern South America. In this study, we present a new high spatial resolution (90 × 90 m) risk map for Colombia ... -
Pathogenesis of dermonecrosis induced by venom of the spitting cobra, Naja nigricollis: An experimental study in mice
(2016-09-01)The pathogenesis of dermonecrosis induced by the venom of the African spitting cobra Naja nigricollis was investigated in a mouse model. Intradermal injection of venom induced a macroscopic necrotic lesion. Histological ... -
Pathogenesis of myonecrosis induced by coral snake (Micrurus nigrocinctus) venom in mice
(1986-02)The mode by which coral snake (Micrurus nigrocinctus) venom affects skeletal muscle was studied using a combined approach. The venom induced early functional and structural alterations in the plasma membrane of muscle ... -
Pathogenic mechanisms underlying adverse reactions induced by intravenous administration of snake antivenoms
(2013-12-15)Snake antivenoms are formulations of immunoglobulins, or immunoglobulin fragments, purified from the plasma of animals immunized with snake venoms. Their therapeutic success lies in their ability to mitigate the progress ... -
Pathogenic potential of a Costa Rican strain of ‘Candidatus Rickettsia amblyommii’ in guinea pigs (Cavia porcellus) and protective immunity against Rickettsia rickettsii
(2015-07)‘Candidatus Rickettsia amblyommii’ is a spotted fever group rickettsia that is not considered pathogenic, although there is serologic evidence of possible infection in animals and humans. The aim of this study was to ... -
Pathological alterations induced by neuwiedase, a metalloproteinase isolated from Bothrops neuwiedi snake venom
(2001-06)The pathological alterations induced by neuwiedase, a 22 kDa class P-I metalloproteinase from the venom of the South American pit viper Bothrops neuwiedi, were studied in mice. Neuwiedase was devoid of hemorrhagic activity ... -
Pathological and biochemical changes induced in mice after intramuscular injection of venom from newborn specimens of the snake Bothrops asper (Terciopelo)
(1992-09)Venom from newborn Bothrops asper snakes has higher lethal, hemorrhagic, edema-forming, proteolytic and defibrinating activities than venom from adult B. asper specimens. Electrophoretic analysis confirmed the variation ... -
Pathological changes induced by BaH1, a hemorrhagic proteinase isolated from Bothrops asper (Terciopelo) snake venom, on mouse capillary blood vessels
(1994-08)The pathological changes induced in capillaries by BaH1, a hemorrhagic metalloproteinase isolated from the venom of Bothrops asper, were studied after i.m. injection in mouse gastrocnemius. Hemorrhage was observed ... -
Pathology and first report of natural eye infection with the trematode Philophthalmus gralli (Digenea, Philophthalmidae) in Tinamus major (Tinamiformes, Tinamidae), Costa Rica
(2013)The eye-fluke Philophthalmus gralli (Philophthalmidae Looss, 1899) was found in six birds known as great tinamous (Tinamusmajor) reared in awild animal shelter located in Alajuela, Costa Rica. The birds presented conjunctival ... -
Patient Safety Indicators in Clinical Laboratories: An Exploratory Survey among Costa Rican Laboratory Professionals
(2021-02-13)Introduction: Patient safety indicators (PSIs) focus on the prevention of complications and minimization of unnecessary patient risk. Using the methodology known as SMART, the most suitable indicators may be selected by ... -
Patogénesis y neutralización de los efectos locales inducidos por el veneno de la serpiente "terciopelo" (Bothrops asper).
(1982)Se presenta la revisión de varias investigaciones sobre la patogénesis y neutralización de los efectos locales inducidos por el veneno de la serpiente terciopelo. El cuadro local está constituido por mionecrosis, hemorragia ...