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Challenges detecting SARS-CoV-2 in Costa Rican domestic wastewater and river water
(2023-11-01)This study presents the development of a SARS-CoV-2 detection method for domestic wastewater and river water in Costa Rica, a middle-income country in Central America. Over a three-year period (November to December 2020, ... -
Changes in oral-health related quality of life before and after dental treatment in 8- to 12-year-old Costa Rican schoolchildren
(2023-04-27)Aims: The aims of this study were to (1) evaluate oral health-related quality of life (OHRQoL) in 8–12-year-old Costa Rican schoolchildren before and after dental treatment and (2) collect clinical and sociodemographic ... -
Changing attitudes and perceptions of hispanic men ages 18 to 25 about rape and rape prevention
(2012-12)This exploratory study was designed to test the effectiveness of Foubert's intervention, The Men's Program, on a sample of 18- to 25-year-old Hispanic men who are not enrolled at a University or College. We explored ... -
Chapter 11: Antiviral, Antimicrobial, and Antibiofilm Properties of Biosurfactants
(2021-04-01)In an era of increasing drug resistance, the search for antimicrobial agents is crucial for the development of a sustainable future. Biosurfactants are amphiphilic molecules with recognised surface tension, and biological ... -
Chapter 5 - Transport, fate, and bioavailability of emerging pollutants in soil, sediment, and wastewater treatment plants: potential environmental impacts
(2022)Emerging contaminants (ECs) are chemicals of natural or synthetic origin that have been recently discovered and are not commonly monitored. These ECs have potential to contaminate the environment and have adverse effects ... -
Characterization and Comparison of quality management systems for cosmetic products in the world
(2021)The quality management systems are tools that can be implemented in different types of industry with the purpose of achieving improved quality standards on the products or services they develop, mainly looking to satisfy ... -
Characterization and functional analysis of the proteins Prohibitin 1 and 2 in Trypanosoma cruzi
(2020-04-08)Background: Chagas disease is the third most important neglected tropical disease. There is no vaccine available, and only two drugs are generally prescribed for the treatment, both of which with a wide range of side ... -
Characterization of 'basparin A,' a prothrombin-activating metalloproteinase, from the venom of the snake Bothrops asper that inhibits platelet aggregation and induces defibrination and thrombosis
(2003-10)A prothrombin activator, named ‘basparin A,’ was isolated from the venom of the crotaline snake Bothrops asper, the species responsible for the majority of snakebite cases in Central America. It is an acidic (pI 5.4), 70 ... -
Characterization of a basic phospholipase A2-homologue myotoxin isolated from the venom of the snake Bothrops neuwiedii (yarará chica) from Argentina
(1999)A basic protein was isolated by CM-Sephadex C-25 chromatography from the venom of Bothrops neuwiedii from Argentina, and named B. neuwiedii myotoxin I. This protein exerted local myotoxic and edema-forming e ects in mice, ... -
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 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 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 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 the local tissue damage induced by LHF-II, a metalloproteinase with weak hemorrhagic activity isolated from Lachesis muta muta snake venom
(1999-09)Local tissue damage induced by LHF-II, a 22-kDa hemorrhagic metalloproteinase from Lachesis muta venom was studied. Intravital microscopy experiments evidenced hemorrhagic events 2 min after LHF-II application onto cremaster ... -
Charcot-Marie-Tooth disease: a novel Tyr145Ser mutation in the myelin protein zero (MPZ, P0) gene causes different phenotypes in homozygous and heterozygous carriers within one family
(Neurogenetics : 4 (4) p. 191-197, 2003-07-05)Abstract. Charcot-Marie-Tooth disease type IB (CMT 1B) is caused by mutations in the gene coding for peripheral myelin protein zero (MPZ, P0) that plays a fundamental role in adhesion and compaction of peripheral myelin. ... -
Chemical composition and antinutritional factors of Lycianthes synanthera leaves (chomte)
(2006)Abstract The leaves of Lycianthes synanthera (chomte), an edible Guatemalan plant, were analysed for some nutritional and antinutri tional factors. Results of this study indicated that chomte leaves are rich sources of ...