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Mostrando ítems 5079-5098 de 34257
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Characterization of a novel snake venom component: Kazal-type inhibitor-like protein from the arboreal pitviper Bothriechis schlegelii
(2016-06)Snake venoms are composed mainly of a mixture of proteins and peptides. Notably, all snake venom toxins have been assigned to a small number of protein families. Proteomic studies on snake venoms have recently identified ... -
Characterization of alpha-neurotoxin and phospholipase A2 activities from Micrurus venoms. Determination of the amino acid sequence and receptor-binding ability of the major alpha-neurotoxin from Micrurus nigrocinctus nigrocinctus
(1996)New World elapids are coral snakes that belong to the genus Micrurus, and for which the venom biochemistry is mostly unknown. Analysis has been difficult because the coral snakes produce small quantities of venom. Clinical ... -
Characterization of an R-Plasmid Associated with Ampicillin Resistance in Shigella dysenteriae Type 1 Isolated from Epidemics
(1977-03)Ampicillin-resistant strains of Shigella dysenteriae type 1 isolated in epidemics in Mexico, Central America, and Bangla Desh were examined for the presence of plasmid deoxyribonucleic acid (DNA) by gel electrophoresis. ... -
Characterization of aspercetin, a platelet aggregating component from the venom of the snake Bothrops asper which induces thrombocytopenia and potentiates metalloproteinase-induced hemorrhage
(2001-04)Thrombocytopenia occurs in a number of patients bitten by Bothrops asper, a species responsible for the majority of snakebites in Central America and southern Mexico. In this work we describe the isolation of a new ... -
Characterization of atmospheric structures observed by a VHF MST-type radar in the troposphere over Santa Cruz, Costa Rica
(2019)Results from the frst VHF profler research radar in Costa Rica, operating at a central radar frequency of 46.6 MHz, are presented. Emphasis has been on studies of scattering layers detected in the altitude range 1–6 km, ... -
Characterization of Batrachochytrium dendrobatidis Inhibiting Bacteria from Amphibian Populations in Costa Rica
(2017)Global amphibian declines and extinction events are occurring at an unprecedented rate. While several factors are responsible for declines and extinction, the fungal pathogen Batrachochytrium dendrobatidis (Bd) has been ... -
Characterization of events associated with apoptosis/anoikis induced by snake venom metalloproteinase BaP1 on human endothelial cells
(2005-02)Human endothelial EA.hy926 cells were incubated with BaP1, a hemorrhagic metalloproteinase purified from Bothrops asper snake venom. Since the first hour of incubation with the proteinase, cells started showing DNA ... -
Characterization of Expression Quantitative Trait Loci in Pedigrees from Colombia and Costa Rica Ascertained for Bipolar Disorder
(2016-05-13)The observation that variants regulating gene expression (expression quantitative trait loci, eQTL) are at a high frequency among SNPs associated with complex traits has made the genome-wide characterization of gene ... -
Characterization of Extracellular Vesicles Secreted by a Clinical Isolate of Naegleria fowleri and Identification of Immunogenic Components within Their Protein Cargo
(2022-06)Abstract: Extracellular vesicles (EVs) are small lipid vesicles released by both prokaryotic and eu-karyotic cells, involved in intercellular communication, immunomodulation and pathogenesis. In this study, we performed a ... -
Characterization of Fusarium species from pineapple plantations in Costa Rica
(2017)Abstracts presented at the 56th Annual Meeting of the APS Caribbean Division meeting in Costa Rica, February 26–March 2, 2017. Recommended format for citing division meeting abstracts, using the first abstract below as an ... -
Characterization of heterogeneous response to chemotherapy by perturbation-based modeling of fluorescent sphingolipid metabolism in cancer cell subpopulations
(2017)Cancer treatments options are limited by the generation of therapy resistance, which is due by intratumoral heterogeneity in cell response. The study of resistance requires biosensors able to report the response at the ... -
Characterization of Mesocarp and Kernel Lipids from Jacq., [Kunth] Cortés, and Their Interspecific Hybrids
(2017)Morphological traits, total lipid contents, and fatty acid profiles were assessed in fruits of several accessions of Elaeis oleifera [Kunth] Cortes,́ Elaeis guineensis Jacq., and their interspecific hybrids. The latter ... -
Characterization of phenolic compounds in jocote (Spondias purpurea L.) peels by ultra high-performance liquid chromatography/electrospray ionization mass spectrometry
(2012-05)Phenolic acids and flavonol O-glycosides were extracted from the peels of jocote fruits (Spondias purpureaL.,Anacardiaceae) harvested in Costa Rica and characterized using ultra high-performance liquid chromatog-raphy ... -
Characterization of phytochemicals in Costa Rican guava (Psidium friedrichsthalianum -Nied.) fruit and stability of main compounds during juice processing - (U)HPLC-DAD-ESI-TQD-MSn
(2019)Psidium fruits are well known in tropical countries as a food and have traditionally been used for the treatment of some diseases, e.g., diarrhea and diabetes. Among them, P. friedrichsthalianum has been associated with ...