Listar Microbiología por título
Mostrando ítems 158-177 de 1169
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Biochemical characterization of the venom of Central American scorpion Didymocentrus krausi Francke, 1978 (Diplocentridae) and its toxic effects in vivo and in vitro
(2019)non-buthid venoms, for which knowledge is scarce. In this work, we characterized the venom of a Diplocentridae species, Didymocentrus krausi, a small fossorial scorpion that inhabits the Tropical Dry Forest of Central ... -
Biochemical Indicators of nutritional status and dietary intake in Costa Rican Cabécar Indian Adolescents
(2005-03)The purpose of this study was to determine the blood levels of selected nutritional status indicators and the dietary intake of Costa Rican Cabécar Indians aged 10 to 16 years. The results showed that 65% of the adolescents ... -
Biochemistry and toxicology of toxins purified from the venom of the snake Bothrops asper
(2009-12-01)The isolation and study of individual snake venom components paves the way for a deeper understanding of the pathophysiology of envenomings – thus potentially contributing to improved therapeutic modalities in the clinical ... -
Biodegradation of sulfamethazine by Trametes versicolor: Removal from sewage sludge and identification of intermediate products by UPLC–QqTOF-MS
(2011-11-15)Degradation of the sulfonamide sulfamethazine (SMZ) by the white-rot fungus Trametes versicolor was assessed. Elimination was achieved to nearly undetectable levels after 20 h in liquid medium when SMZ was added at 9 mg ... -
Biological and biochemical activities of Vipera berus (European viper) venom
(1993-06)Vipera berus is widely distributed throughout the northern part of Europe and Asia. Characterization of several toxic effects of its venom in the mouse, as well as of in vitro enzymatic activities was performed. Vipera ... -
Biological and proteolytic variation in the venom of Crotalus scutulatus scutulatus from Mexico
(2018-01)Rattlesnake venoms may be classified according to the presence/absence and relative abundance of the neurotoxic phospholipases A2s (PLA2s), such as Mojave toxin, and snake venom metalloproteinases (SVMPs). In Mexico, ... -
Biological and structural characterization of crotoxin and new isoform of crotoxin B PLA2 (F6a) from Crotalus durissus collilineatus snake venom
(2006)A new crotoxin B isoform PLA2 (F6a), from Crotalus durissus collilineatus was purified from by one step reverse phase HPLC chromatography using l-Bondapack C-18 column analytic. The new crotoxin B isoform PLA2 (F6a), ... -
Biophysical and Biochemical Comparison of Extracellular Vesicles Produced by Infective and Non-Infective Stages of Trypanosoma cruzi
(2021-05-13)Extracellular vesicles (EVs) are small lipid vesicles released by either any prokaryotic or eukaryotic cell, or both, with a biological role in cell-to-cell communication. In this work, we characterize the proteomes and ... -
Biopiracy of natural products and good bioprospecting practice
(2016-02-15)Background: Biopiracy mainly focuses on the use of biological resources and/or knowledge of indigenous tribes or communities without allowing them to share the revenues generated out of economic exploitation or other ... -
Bioprospección de beta-glucosidasas novedosas a partir de metagenomas obtenidos de intestinos de escarabajos pasálidos de Costa Rica y respiraderos hidrotermales de la Isla Vulcano en Italia
(2019-10)La aplicación de tecnologías que permitan el establecimiento de biorrefinerías constituye una alternativa interesante que busca incentivar una menor dependencia en el uso de combustibles fósiles y generar productos de valor ... -
Biopsia líquida: Una herramienta para el diagnóstico oportuno y no invasivo de tumores hematológicos
(2021)Según el “Informe mundial sobre cáncer” en el 2020 se reportó una incidencia mundial de, aproximadamente, 19.2 millones de casos nuevos, correspondiendo con 9.9 millones de muertes asociadas con esta causa. (WHO, 2021) El ... -
Biopsychosocial Factors Associated with Active or Sedentary Lifestyles of Children and Adolescents in Costa Rica
(2020)Background: Sedentary lifestyle in children and adolescents has been associated in multiple investigations with lack of healthy recreation, low academic performance and socialization, drug use and a higher rate of violence. ... -
Blaesoxipha plinthopyga (Diptera: Sarcophagidae) como responsable de miasis nosocomiales en Costa Rica
(2014)Se presentan dos casos de miasis nosocomiales, ocurridos en hospitales costarricenses, cuyo agente etiológico identificado fue Blaesoxipha plinthopyga (Diptera: Sarcophagidae). El primero tuvo lugar como infestación de una ... -
Blister formation and skin damage induced by BaP1, a haemorrhagic metalloproteinase from the venom of the snake Bothrops asper
(1998-08)Blister formation and skin damage can be induced by BaP1, a haemorrhagic metalloproteinase from the venom of the snake Bothrops asper. Pathological changes in the skin were investigated after intramuscular injections of ... -
Blood flow is required for rapid endothelial cell damage induced by a snake venom hemorrhagic metalloproteinase
(2006-01)The effects of blood flow interruption on the ultrastructural alterations induced by a snake venom hemorrhagic metalloproteinase on skeletal muscle capillary endothelial cells were studied. Saline solution or the ... -
Bothrops asper and Bothrops jararaca snake venoms trigger microbicidal functions of peritoneal leukocytes in vivo
(2001-10)Venoms from snakes of the genus Bothrops cause pronounced local effects in the victims. These alterations result not only from the direct toxic action of venom components, but also from the prominent inflammatory reaction ... -
Bothrops asper metalloproteinase BaP1 is inhibited by alpha(2)-macroglobulin and mouse serum and does not induce systemic hemorrhage or coagulopathy
(2004-02)The ability of the P-I metalloproteinase BaP1, isolated from the venom of the snake Bothrops asper, to induce systemic bleeding, thrombocytopenia and defibrinogenation was assessed in an experimental mouse model. Intravenous ... -
Bothrops asper snake venom and its metalloproteinase BaP–1 activate the complement system. Role in leucocyte recruitment
(2000)The venom of the snake Bothrops asper, the most important poisonous snake in Central America, evokes an inflammatory response, the mechanisms of which are not well characterized. The objectives of this study were to ... -
Bothrops asper: Beauty and peril in the Neotropics
(2009-12-01)Snakes have inspired fascination and fear to humans since ancient times, as reflected by the common presence of these reptiles in the mythology of many civilizations. Such sense of awe has been associated to the impact ... -
Bothrops snake myotoxins induce a large efflux of ATP and potassium with spreading of cell damage and pain
(2010-07-26)Myotoxins play a major role in the pathogenesis of the envenomations caused by snake bites in large parts of the world where this is a very relevant public health problem. We show here that two myotoxins that are major ...