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Silver colloidal nanoparticles : effect on matrix composition and structure of ...

Aim : The aim of this study was to assess the effect of different silver nanoparticles (SN) concentrations on the matrix composition and structure of Candida albicans and Candida glabrata biofilms. Methods and Results : Candida biofilms were developed in 6-well microtiter plates during 48 h. After, these biofilms were exposed to 13·5 or 54 μg SN ml−1 for 24 h. Then, extracellular matrices were extracted from bi...

Automatic Small Bowel Tumor Diagnosis by Using Multi-Scale Wavelet-Based Analys...

BACKGROUND: Wireless capsule endoscopy has been introduced as an innovative, non-invasive diagnostic technique for evaluation of the gastrointestinal tract, reaching places where conventional endoscopy is unable to. However, the output of this technique is an 8 hours video, whose analysis by the expert physician is very time consuming. Thus, a computer assisted diagnosis tool to help the physicians to evaluate ...

Silver nanoparticles : influence of stabilizing agent and diameter on antifunga...

Aim : The purpose of this work was to evaluate the size-dependent antifungal activity of different silver nanoparticles (SN) colloidal suspensions against Candida albicans and Candida glabrata mature biofilms. Methods and Results:  The research presented herein used SN of three different average sizes (5, 10 and 60 nm), which were synthesized by the reduction of silver nitrate through sodium citrate and which w...

Effect of pretreatment of Candida biofilm cells with silver nanoparticles on th...

Objectives: The pathogenicity of Candida spp. has been recognized by some factors, including adhesion to host cells or inert surfaces and biofilm formation. In addition, the dispersal of biofilm cells may act as a continuous source of infection. Thus, the aim of this study was to evaluate the adhesion capacity of Candida albicans and Candida glabrata cells recovered from Candida biofilms treated with silver nan...

Immunological and biochemical parameters of patients with metabolic syndrome an...

Silver colloidal nanoparticles: antifungal effect against Candida albicans and ...

The aim of this study was to evaluate the effect of silver nanoparticles (SN) against Candida albicans and Candida glabrata adhered cells and biofilms. SN (average diameter 5 nm) were synthesized by silver nitrate reduction with sodium citrate and stabilized with ammonia. Minimal inhibitory concentration (MIC) tests were performed for C. albicans (n = 2) and C. glabrata (n = 2) grown in suspension following the...

Effect of silver nanoparticles against Candida albicans and Candida glabrata bi...

Objectives: Fungal infections in immunocompromised patients have been contributing to the increasing morbidity and mortality of these patients, especially associated to yeast resistance to antifungal therapy. The increase in antibiotic-resistant microorganisms has prompted interest in the use of silver as an antimicrobial agent. Thus, the aim of this study was to evaluate the antifungal efficacy of silver nanop...

Cross-transmission of vancomycin-resistant Enterococcus in patients undergoing ...

The objective of this study was to investigate the occurrence of vancomycin-resistant Enterococcus (VRE) cross-transmission between two patient groups (long-term dialysis and kidney transplant patients). Molecular typing, by automated ribotyping with the RiboPrinter Microbial Characterization System (Qualicon, USA), was used to analyze VRE isolates from 31 fecal samples of 320 dialysis patients and 38 fecal sam...

Avaliação da efetividade da assistência pré-natal de uma Unidade de Saúde da Fa...

Dada a importância da qualidade do cuidado pré-natal na redução da morbi-mortalidade materna e perinatal, este estudo objetivou avaliar a qualidade da assistência prestada à gestantes de baixo risco por meio dos indicadores de qualidade preconizados pelo Ministério da Saúde. Trata-se de um estudo avaliativo, quantitativo e retrospectivo realizado em um Serviço de Pré-Natal de uma Unidade de Saúde da Família de ...

Avaliação clínica e histopatológica de alo-transplante de bexiga em cães

Testou-se a hipótese de o alo-transplante de bexiga devolver a capacidade estrutural e funcional desse órgão, usando-se 10 cães machos, saudáveis, submetidos à cistectomia parcial com preservação do trígono vesical. Utilizou-se o alo-transplante na reconstrução da vesícula urinária com acompanhamento dos animais durante 60 dias. Aos oito dias de pós-operatório, os cães apresentavam capacidade de contenção uriná...