Publications by authors named "Renato Lopes de Souza"

Objective: To report the case of a one-year-old patient with a bloodstream infection associated with probiotics, and to discuss the indications and precautions concerning the therapeutic use of probiotics.

Case Description: A one-year-old male patient with Down syndrome in a late postoperative period of congenital cardiac disease correction. The patient was severely malnourished and had been hospitalized since he was two months old in the Pediatric Intensive Care Unit.

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Background: Shiga toxin (Stx)-producing Escherichia coli (STEC) infection is associated with hemolytic uremic syndrome (HUS), the main cause of acute renal failure in early childhood. Stx is essential in the pathogenesis of HUS, which has been mostly related to Stx2-producing isolates. Very limited data exist on the immune response to STEC in the Brazilian population.

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Enterohemorrhagic Escherichia coli (EHEC) strains can cause hemolytic uremic syndrome (HUS), a leading cause of childhood renal failure. The adhesin intimin and the secreted proteins A (EspA) and B (EspB) contribute to the occurrence of EHEC attaching and effacing lesions. In this study, immunoblot assays were performed to determine immunoglobulin G (IgG) antibodies reactive with these proteins in sera from 13 children diagnosed with HUS and in sera from 54 healthy Brazilian children.

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The hemolytic uremic syndrome (HUS) caused by Shiga toxin-producing Escherichia coli (STEC) is one of the most frequent causes of pediatric acute renal failure. The aim of this study was to report the clinic and microbiologic features associated with 13 post-diarrheal HUS cases identified in pediatric intensive care units in the city of São Paulo, Brazil, from January 2001 to August 2005. Epidemiologic, clinic, and laboratorial information, along with fecal and serum samples, were collected for identifying the genetic sequences of Stx and for studying antibodies directed against LPS O26, O111 and O157.

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