11 documents found, page 1 of 2

A 5-year retrospective study of canine and feline patients referred to an isola...

Background: Referral of cases is becoming more and more frequent in companion animal practice. The Infectious Diseases Isolation Unit (IDIU) admits first opinion, second opinion and referred patients with a confirmed infectious disease (ID) or a clinically suspected ID that is awaiting laboratory diagnosis. The primary aims of this study were to describe the annual number and characteristics of patients referre...

Deformable MRI-Ultrasound registration using correlation-based attribute matchi...

Intraoperative tissue deformation, known as brain shift, decreases the benefit of using preoperative images to guide neurosurgery. Non-rigid registration of preoperative magnetic resonance (MR) to intraoperative ultrasound (iUS) has been proposed as a means to compensate for brain shift. We focus on the initial registration from MR to predurotomy iUS. We present a method that builds on previous work to address ...

Non-rigid registration of 3D ultrasound for neurosurgery using automatic featur...

Role of bolA and rpoS genes in biofilm formation and adherence pattern by Esche...

Escherichia coli has developed sophisticated means to sense, respond, and adapt in stressed environment. It has served as a model organism for studies in molecular genetics and physiology since the 1960s. Stress response genes are induced whenever a cell needs to adapt and survive under unfavorable growth conditions. Two of the possible important genes are rpoS and bolA. The rpoS gene has been known as the alte...

Deciphering the Contribution of Biofilm to the Pathogenesis of Peritoneal Dialy...

Infections are major complications in peritoneal dialysis (PD) with a multifactorial etiology that comprises patient, microbial and dialytic factors. This study aimed at investigating the contribution of microbial biofilms on PD catheters to recalcitrant infections and their interplay with PD related-factors. A prospective observational study was performed on 47 patients attending Centro Hospitalar of Porto and...

Proteomic changes in Pseudomonas aeruginosa biofilm cells after adaptive resist...

This work investigates the outer membrane (OM) proteomic alteration of Pseudomonas aeruginosa biofilm cells after adaptation to benzalkonium chloride (BC) and ciprofloxacin (CIP). Biofilms were formed in 6-well plates for 24 h being after submitted to 324 mg/L BC and 6.0 mg/L CIP, during 12 days. Cells were harvested, the OM proteins extracted and patterns compared. P. aeruginosa adaptation altered the total am...

Oclusão Venosa Central Retiniana e Trombofilias - A Propósito de Um Caso Clí...

Introdução: A incidência da oclusão venosa central de retina (OVCR) varia de 2 a 8 por 1,000 e aumenta com a idade. Os factores de risco cardiovasculares, algumas trombofilias e síndromes de hiperviscosidade podem facilitar o aparecimento da OVCR. A mutação do gene da protrom- bina (G20210A) aumenta os níveis de protrombina plasmática em 30%, elevando assim o risco de trombose venosa. Não existe, no e...

CGE: da divulgação à investigação

A divulgação da ciência e da tecnologia aparece como uma área fundamental na sociedade actual. Isto não será de estranhar pois os tremendos desafios que se colocam ao futuro de um planeta que a cada 12 a 13 anos tem mais mil milhões de habitantes e onde o consumo aumenta de uma forma exponencial, levanta problemas que eventualmente só o conhecimento científico poderá resolver; é importante que as opções que ven...

Involvement of bolA and rpoS genes in oxygen uptake (respirometry) by E. coli K...

Differences in respiratory activity of Escherichia coli under various stress-induced environments has shown the ability of rpoS and bolA genes to respond in several stress conditions and adaptation, leading to an increase rate of oxygen uptake. The results have shown the rate of respiratory activity (defined in mg O2/g bacteria min-1) changed under various stress-induced conditions, i.e. heat shock, cold shock ...

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