8 research outputs found
Rosette-Disrupting Effect of an Anti-Plasmodial Compound for the Potential Treatment of Plasmodium falciparum Malaria Complications
The spread of artemisinin-resistant parasites could lead to
higher incidence of patients with malaria complications.
However, there are no current treatments that directly dislodge
sequestered parasites from the microvasculature. We show that
four common antiplasmodial drugs do not disperse rosettes
(erythrocyte clusters formed by malaria parasites) and therefore
develop a cell-based high-throughput assay to identify potential
rosette-disrupting compounds. A pilot screen of 2693 compounds
identified Malaria Box compound MMV006764 as a potential
candidate. Although it reduced rosetting by a modest 20%,
MMV006764 was validated to be similarly effective against both
blood group O and A rosettes of three laboratory parasite lines.
Coupled with its antiplasmodial activity and drug-likeness,
MMV006764 represents the first small-molecule compound that
disrupts rosetting and could potentially be used in a
resource-limited setting to treat patients deteriorating rapidly
from malaria complications. Such dual-action drugs that
simultaneously restore microcirculation and reduce parasite load
could significantly reduce malaria morbidity and mortality
Rosette-Disrupting Effect of an Anti-Plasmodial Compound for the Potential Treatment of Plasmodium falciparum Malaria Complications
The spread of artemisinin-resistant parasites could lead to
higher incidence of patients with malaria complications.
However, there are no current treatments that directly dislodge
sequestered parasites from the microvasculature. We show that
four common antiplasmodial drugs do not disperse rosettes
(erythrocyte clusters formed by malaria parasites) and therefore
develop a cell-based high-throughput assay to identify potential
rosette-disrupting compounds. A pilot screen of 2693 compounds
identified Malaria Box compound MMV006764 as a potential
candidate. Although it reduced rosetting by a modest 20%,
MMV006764 was validated to be similarly effective against both
blood group O and A rosettes of three laboratory parasite lines.
Coupled with its antiplasmodial activity and drug-likeness,
MMV006764 represents the first small-molecule compound that
disrupts rosetting and could potentially be used in a
resource-limited setting to treat patients deteriorating rapidly
from malaria complications. Such dual-action drugs that
simultaneously restore microcirculation and reduce parasite load
could significantly reduce malaria morbidity and mortality
Jóvenes en movimiento en el mundo globalizado
Los movimientos sociales, particularmente los de la juventud en el mundo globalizado, constituyen por muchos motivos un tema central de nuestras vidas y de las Ciencias Sociales. En un entorno de desencanto generalizado hacia la democracia "representativa" y los partidos políticos, son estos movimientos un referente obligado en el análisis de las luchas y del cambio social.
En este libros se documentan experiencias de cuatro países: México, Argentina, España y Chile, y se presentan, además de reflexiones teóricas, resultados de investigaciones recientes que abordan desde la crisis de la democracia, los derechos, nuevos sentidos del trabajo, diversas alternativas, liderazgos, identidades y trayectorias; participación política, relaciones de género, subjetividades, hasta el interesante proceso de desmovilización social que llevan a cabo los gobiernos, que permiten abordar la dualidad del movimiento social contemporáneo
Small renal mass biopsy - how, what and when: report from an international consensus panel
To discuss the use of renal mass biopsy (RMB) for small renal masses (SRMs), formulate technical aspects, outline potential pitfalls and provide recommendations for the practicing clinician. The meeting was conducted as an informal consensus process and no scoring system was used to measure the levels of agreement on the different topics. A moderated general discussion was used as the basis for consensus and arising issues were resolved at this point. A consensus was established and lack of agreement to topics or specific items was noted at this point. Recommended biopsy technique: at least two cores, sampling different tumour regions with ultrasonography being the preferred method of image guidance. Pathological interpretation: 'non-diagnostic samples' should refer to insufficient material, inconclusive and normal renal parenchyma. For non-diagnostic samples, a repeat biopsy is recommended. Fine-needle aspiration may provide additional information but cannot substitute for core biopsy. Indications for RMB: biopsy is recommended in most cases except in patients with imaging or clinical characteristics indicative of pathology (syndromes, imaging characteristics) and cases whereby conservative management is not contemplated. RMB is recommended for active surveillance but not for watchful-waiting candidates. We report the results of an international consensus meeting on the use of RMB for SRMs, defining the technique, pathological interpretation and indication