Agustín Paz

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A total of 88 bacterial strains were isolated from six Andean lakes situated at altitudes ranging from 3,400 to 4,600 m above sea level: L. Aparejos (4,200 m), L. Negra (4,400 m), L. Verde (4,460 m), L. Azul (4,400 m), L. Vilama (4,600 m), and Salina Grande (3,400 m). Salinity ranged from 0.4 to 117 ppm. General diversity was determined by denaturing(More)
The emergence of fluconazole-resistant Candida (FRC) is worrisome, but little is known about susceptibility patterns in different nosocomial settings. We prospectively analysed Candida bloodstream isolates in 18 medical centres in Israel (six tertiary-care and 12 community hospitals). The study included 444 episodes of candidaemia (450 patient-specific(More)
Samples of heart, oesophagus and diaphragm muscle from 132 roe deer (Capreolus capreolus) hunted in game reserves from Lugo province (north-western Spain) were examined to determine the prevalence ofSarcocystis infection. Sarcocysts were examined by light (LM) and transmission electron microscopy (TEM). The overall prevalence of infection was 85.6%, with a(More)
The larval development of the cat lungworm Aelurostrongylus abstrusus was studied for the first time in the helicid mollusc Cernuella (Cernuella) virgata, in order to know its performance as intermediate host (I.H.). This snail is very common in the north-west of Spain. First-stage larvae (L1) of A. abstrusus were obtained by the Baermann–Wetzel method from(More)
BACKGROUND Current methods for obtaining fetal cells for prenatal diagnosis are invasive and carry a small (0.5-1.0%) but definite risk of miscarriage. An attractive alternative would be isolation of fetal cells from peripheral maternal blood using antibodies with high specificity and avidity. METHODS To generate antibodies, we purified nucleated red(More)
The isolation of fetal nucleated red blood cells (NRBC) from maternal blood represents a promising approach to non-invasive prenatal diagnosis. However, the number of fetal NRBC in maternal circulation is quite low and therefore difficult to isolate. An enrichment procedure in which both layers from a double density 1.077/1.107 g/ml gradient are collected(More)
Twelve batches of 100 Cochlicella barbara (Mollusca, Helicidae) were deposited monthly, from January to December in plots (0.5×0.5 m) with faeces of sheep containing first-stage larvae of Neostrongylus linearis in order to be naturally infected, and another 12 batches acted as uninfected controls. Every 2 weeks dead molluscs were removed from the plots and(More)
The influence of a previous infection (acute and chronic) on the kinetics of the immune humoral response in rats challenged with Fasciola hepatica was studied. Two infected groups were reinfected at different times – one, at 4 weeks after primary infection (w.a.p.i.); and the other, at 11 w.a.p.i. Signs of reinfection were observed in the two challenged(More)
The objective of this study was to evaluate the results achieved after revision with plates of humeral nonunions secondary to failed intramedullary nailing. We retrospectively evaluated 32 patients with humeral nonunions secondary to failed intramedullary nailing, treated by internal fixation with plates between 1998 and 2012. Nonunions were diaphyseal in(More)
Exposure to physical or psychological stress causes brain damage ranging from minimal behavioural alterations to different neurodegeneration degrees implying the overproduction of oxidative-nitrosative compounds, apoptosis and cell proliferation. In the present investigation, we have analysed the effect of the chronic stress by immobilisation applied to(More)