8 research outputs found
Dynamics of a Nitroxide Layer Grafted onto Porous Silicon
No full textThis paper reports a rapid electron spin resonance method to assess the dynamical properties of spin-labeled alkyl carboxylate layers, covalently linked onto a porous silicon substrate. IR and X-ray photoelectron spectroscopy analyses complemented the ESR study by proving the successful grafting of the organic radical and coverage of the surface
CMV and BKV ureteritis: which prognosis for the renal graft?
No full textThis report describes two cases of ureteral stricture in renal graft recipients related to cytomegalovirus (CMV) and human polyoma BK virus (BKV) ureteritis with the same onset characterized by acute graft failure with no clinical signs of systemic viral infections. The histological analysis did not show other causes of graft impairment (i.e. drug toxicity and acute rejection). Ultrasound scan (US) revealed absent or mild hydronephrosis. The diuretic-MAG3 renal scan showed a urinary flow obstruction. The viral genomes were isolated from urine, peripheral blood and graft or ureteral tissues samples. A percutaneous nephrostomy confirmed the stricture, but it restored urine flow only in the graft affected by CMV ureteritis, the association with a specific antiviral therapy probably produced a stable restoration of graft function. In BKV ureteritis,the graft prognosis was poor; graft loss could be due to the progress of BKV nephropathy. A correct differential diagnosis of the etiologic agent responsible for the ureteritis is mandatory, because treatment and outcome of the infection are different
Influence of yeasts and of their constituents on nucleoside uptake in peritoneal murine macrophages
No full textA marked reduction of [3H]-uridine uptake was observed when mouse peritoneal macrophages (pM phi) were exposed to heat-killed Candida albicans or Saccharomyces cerevisiae. By contrast, an increased nucleoside uptake was promoted by yeast products such as zymosan, laminarin, or yeast cell-wall extracts, which are mainly composed of beta-glucans and alpha-mannans. In a search for the active fungal component(s), the uptake process was shown to be differently affected by monosaccharides and polysaccharides. These findings support the view that a specific recognition of a pM phi membrane receptor is mediating the effect of the various substances
Microbiologia medica
No full textLibro di Testo di Microbiologia Medica, per gli studenti del Corso di Laurea in Medicina e Chirurgia. Co-curatore dell'edizione italian
Detection and characterization of Helicobacter pylori from patients with gastroduodenal diseases
No full textDynamics of a Nitroxide Layer Grafted onto Porous Silicon
No full textThis paper reports a rapid electron spin resonance method to assess the dynamical properties of spin-labeled alkyl carboxylate layers, covalently linked onto a porous silicon substrate. IR and X-ray photoelectron spectroscopy analyses complemented the ESR study by proving the successful grafting of the organic radical and coverage of the surface
