35 documents found, page 1 of 4
Assessment of waste workers occupational risk to microbial agents and cytotoxic...
Marchand, Genevieve; Wingert, Loïc; Viegas, Carla; Aranha Caetano, Liliana; Viegas, Susana; Twaruzek, Magdalena; Lacombe, Nancy; Lanoie, DelphineWorkers in the waste-processing industry are potentially exposed to high concentrations of biological contaminants, leading to respiratory and digestive problems and skin irritations. However, few data on the exposure of waste collection truck (WCT) drivers are available. The goal was to document the microbial risk of the waste collection truck (WCT) workers while in the vehicle cab. Long-period sampling using ...
Hybrid nanoparticles to co-delivery drugs with improved properties for topical ...
Marques, André; Aranha Caetano, Liliana; Gonçalves, Lídia M.DBackground: There is an increasing of several eye diseases, which makes it necessary to develop formulations in this field. Despite this need, the permeation of drugs through the ocular membranes is impaired due to the anatomy and physiology of the human eye. Thus, the need arises to include permeation enhancers in topical ophthalmic formulations to increase the permeability of the drug in the ocular membranes(...
Poly(D,L-lactic acid) scaffolds as an innovative approach to the treatment of m...
Zegre, Miguel; Barros, J.; Ribeiro, I. A.; Santos, C.; Aranha Caetano, Liliana; Gonçalves, L.; Monteiro, F.; Ferraz, M.; Bettencourt, A.Introduction: The treatment of bacterial joint and bone infections in patients after multiple revision arthroplasties is very challenging. An expanding number of studies report the co-isolation of fungal and bacterial species (such as Candida albicans and Staphylococcus aureus) from polymicrobial biofilm associated with infections related to bone infections. Current investigations establish that local-specific ...
Poly(D,L-lactic acid) scaffolds as an innovative approach to the treatment of m...
Zegre, Miguel; Barros, J.; Ribeiro, I. A.; Santos, C.; Aranha Caetano, Liliana; Gonçalves, L.; Monteiro, F.; Ferraz, M.; Bettencourt, A.Problem - Bone infections associated with polymicrobial biofilm formation; mixed bacterial-fungal biofilm infection; Staphylococcus aureus and Candida albicans most described microbials. Strategy - Local drug delivery scaffolds; development of poly-DL-lactic acid (PDLLA) scaffolds; co-delivery of antibacterial and antifungal drugs; minocycline and voriconazole as model drugs.
Comprehensive assessment of occupational exposure to microbial contamination in...
Viegas, Carla; Eriksen, Elke; Gomes, Bianca; Dias, Marta; Cervantes, Renata; Pena, Pedro; Carolino, Elisabete; Twarużek, MagdalenaIntroduction: It is of utmost importance to contribute to filling the knowledge gap concerning the characterization of occupational exposure to microbial agents in the waste sorting setting (automated and manual sorting). Methods: This study intends to apply a comprehensive field sampling and laboratory protocol (culture-based methods and molecular tools), assess fungal azole resistance, as well as to elucidate...
Algorithm to assess the presence of Aspergillus fumigatus resistant strains: th...
Viegas, Carla; Almeida, Beatriz; Aranha Caetano, Liliana; Afanou, Anani; Straumfors, Anne; Veríssimo, Cristina; Gonçalves, Paulo; Sabino, RaquelAssociation between selection pressure caused by the use of azole fungicides in sawmills and the development of fungal resistance has been described. The aim of this study was to implement an algorithm to assess the presence of Aspergillus section Fumigati resistant strains in sawmills. Eighty-six full-shift inhalable dust samples were collected from eleven industrial sawmills in Norway. Different culture media...
Aspergillus collected in specific indoor settings: their molecular identificati...
Simões, Daniela; Aranha Caetano, Liliana; Veríssimo, Cristina; Viegas, Carla; Sabino, RaquelExposure to Aspergillus conidia is an increased risk factor for the development of respiratory symptoms. The emergence of azole resistance in Aspergillus fumigatus is a major concern for the scientific community. The aim of this study was to perform the molecular identification of Aspergillus species collected from different occupational and non-occupational indoor settings and to study the azole susceptibility...
Settled dust assessment in clinical environment: useful for the evaluation of a...
Viegas, Carla; Almeida, Beatriz; Monteiro, Ana; Paciência, Inês; Rufo, João Cavaleiro; Carolino, Elisabete; Gomes, Anita Quintal; Twarużek, MagdalenaThe collection and analysis of settled dust samples from indoor environments has become one of several environmental sampling methods used to assess bioburden indoors. The aim of the study was to characterize the bioburden in vacuumed settled dust from 10 Primary Health Care Centers by culture-based and molecular methods. Results for bacterial load ranged from 1 to 12 CFU.g−1 of dust and Gram-negative bacteria ...
Aspergillus spp. and azole-resistance characterization on Filtering Respiratory...
Viegas, Carla; Dias, Marta; Almeida, Beatriz; Gonçalves, Paulo; Veríssimo, Cristina; Sabino, Raquel; Aranha Caetano, LilianaStudies performed on waste management industry have reported Aspergillus as the most frequent genera on waste-sorting, incineration and composting. Filtering Respiratory Protective Devices (FRPD) are disposable after one-day use (workshift) and their use is mandatory in Portuguese waste-sorting industries. During FRPD use, humidity and temperature conditions provide a favorable environment for the growth of ret...
Assessment of the microbial contamination of mechanical protection gloves used ...
Viegas, Carla; Twarużek, Magdalena; Dias, Marta; Almeida, Beatriz; Carolino, Elisabete; Kosicki, Robert; Soszczyńska, Ewelina; Grajewski, JanIn Portugal, mechanical protection gloves (MPG) are of mandatory use and during their use sweat is released and, consequently, the humidity of the material increases leading to conditions favorable to the growth of microorganisms. However, no studies have been conducted in MPG to assess the bioburden. This study intended to determine the bioburden present in MPG and their biological effects and to discuss the p...