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Isolation, characterization and molecular cloning of AnMIP, a new α-type phospholipase A2 myotoxin inhibitor from the plasma of the snake Atropoides nummifer (Viperidae: Crotalinae)
(2007)
A new phospholipase A2 (PLA2)-inhibitory protein was isolated from the plasma of Atropoides nummifer, a crotaline snake from Central
America. This inhibitor was named AnMIP, given its ability to neutralize the activity ...
Insights into the mutation T1117I in the spike and the lineage B.1.1.389 of SARS-CoV-2 circulating in Costa Rica
(2022-06)
Emerging mutations and genotypes of the SARS-CoV-2 virus, responsible for the COVID-19 pandemic, have been reported globally. In Costa Rica during the year 2020, a predominant genotype carrying the mutation T1117I in the ...
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 ...
Stability, distribution and use of antivenoms for snakebite envenomation in Latin America: Report of a workshop
(2009-05)
The issues of antivenom stability and distribution, and the training of health staff in the correct use of antivenoms in Latin America were discussed in a workshop held at Instituto Clodomiro Picado, Costa Rica, in September ...
Nuevos registros de Aedes albopictus (Skuse) en cuatro localidades de Costa Rica
(2017)
Introducción. Aedes albopictus (Skuse) es un vector de arbovirus ampliamente distribuido. En Costa Rica, la expansión geográfica de Ae.albopictus se ha incrementado en la última década, por lo que es importante actualizar ...
The effect of myotoxins isolated from Bothrops snake venoms on multilamellar liposomes: relationship to phospholipase A2, anticoagulant and myotoxic activities
(1991-12)
The effect of four myotoxins isolated from Bothrops snake venoms on the release of peroxidase trapped in large multilamellar liposomes was studied and correlated to their phospholipase A2, myotoxic and anticoagulant ...
CMV-encoded Fcγ receptors: modulators at the interface of innate and adaptive immunity
(2014-10-07)
The constant region of IgG antibodies mediates antiviral activities upon engaging host Fcγ receptors (FcγRs) expressed by a variety of immune cells, such as antibody-dependent cellullar cytotoxcity (ADCC) executed by natural ...
Fluorescence Imaging Approaches in Flavivirus Research
(2021-10-01)
The genus Flavivirus within the family Flaviviridae contains many
arthropod-borne infectious agents of medical relevance like dengue virus (DENV),
Zika virus (ZIKV), and West Nile virus (WNV), among others, that cause ...
Toxin B Variants from Clostridium difficile Strains VPI 10463 and NAP1/027 Share Similar Substrate Profile and Cellular Intoxication Kinetics but Use Different Host Cell Entry Factors
(2019)
Clostridium difficile induces antibiotic-associated diarrhea due to the release of toxin A (TcdA) and toxin B (TcdB), the latter being its main virulence factor. The epidemic strain NAP1/027 has an increased virulence ...