Listar Microbiología por título
Mostrando ítems 812-831 de 1169
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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 ... -
Peligros de los falsos positivos en la determinación de gonadotropina coriónica
(2001)Los expertos del Servicio de Referencia para hCG (hormona gonadotropina coriónica humana) de los Estados Unidos de América, han llamado la atención de los laboratorios que realizan la determinación de esta hormona, para ... -
Percentiles of body mass index and waist circumference for Costa Rican children and adolescents
(2022)Introduction: body mass index (BMI) and waist circumference (WC) are anthropometric indicators used to define overweight/obesity and to predict the risk of cardiovascular disease, respectively, in adolescents and ... -
Perfil de lípidos y lipoproteínas en inmigrantes chinos residentes en Costa Rica
(2002)Se estudió el perfil de lípidos y el patrón de consumo de una población de 50 adultos chinos inmigrantes residentes en San José, Costa Rica durante el año de 1999. Los resultados indican que el 35% de éstos (as) inmigrantes ... -
Perfil de resistencia a insecticidas en una cepa de Aedes aegypti (Linnaeus) de la Región Caribe de Costa Rica
(2014)Introducción: el dengue constituye la principal enfermedad de transmisión vectorial en Costa Rica. El control del vector Aedes aegypti consiste en la aplicación de piretrinas y temefós, por lo cual es importante monitorear ... -
Perfil epidemiológico y filogenético de Escherichia coli enteropatógena asociadas a gastroenteritis en pacientes pediátricos del Hospital Nacional de Niños “Dr. Carlos Sáenz Herrera”, enero 2015 a setiembre 2019
(2020)Las enfermedades gastrointestinales son una de las principales causas de morbilidad y mortalidad en países en vías de desarrollo. Las infecciones causadas por los diversos patotipos de E. coli diarreogénicas tienen alta ... -
La pertinencia de las ciencias sociales, en la investigación y la educación en salud, desde una mirada cualitativa
(2018-09)En el marco de la teoría de los intereses constitutivos de saberes de Habermas, las ciencias de la salud no han sido posicionadas, de manera formal en ella para explicar, comprender y transformar sus objetos o fenómenos ... -
Perturbation-Based Modeling Unveils the Autophagic Modulation of Chemosensitivity and Immunogenicity in Breast Cancer Cells
(2021-09-18)In the absence of new therapeutic strategies, chemotherapeutic drugs are the most widely used strategy against metastatic breast cancer, in spite of eliciting multiple adverse effects and having low responses with an ... -
Pesticide occurrence and water quality assessment from an agriculturally influenced Latin-American tropical region
(2021-01)A monitoring study was carried out in three agriculturally influenced microcatchments in Costa Rica during 2012e2014, for pesticides and water quality parameters. A total of 42 pesticides were analyzed, detecting the ... -
Pharmacokinetic-pharmacodynamic relationships of immunoglobulin therapy for envenomation.
(2003-07)Parenteral administration of horse- and sheep-derived antivenoms constitutes the cornerstone in the therapy of envenomations induced by animal bites and stings. Depending on the type of neutralising molecule, antivenoms ... -
Pharmacokinetics of whole IgG equine antivenom: comparison between normal and envenomed rabbits
(2006-09-01)Pharmacokinetics of antivenoms has been mainly studied in normal animals, whereas very little is known on pharmacokinetics in envenomed animals. The aim of this study was to compare pharmacokinetic parameters of whole IgG ... -
Pharmacological modulation of edema induced by Lys-49 and Asp-49 myotoxic phospholipases A2 isolated from the venom of the snake Bothrops asper (terciopelo)
(1998-12)The pharmacological modulation of edema-forming activity of Bothrops asper myotoxins II and III, Lys-49 and Asp-49 phospholipases A2, respectively, was studied plethysmographically in the mouse foot pad model. Myotoxin III ... -
Pharmacological modulation of hyperalgesia induced by Bothrops asper (terciopelo) snake venom
(2001-08)The ability of Bothrops asper snake venom to cause hyperalgesia was investigated in rats, using the paw pressure test. Intraplantar injection of the venom (5–15 μg/paw) caused a dose and time-related hyperalgesia, which ...