Fibrous PCL/PLLA Scaffolds Obtained by Rotary Jet Spinning and Electrospinning

Rotary jet spinning (RJS) and electrospinning are techniques to obtain fibrous scaffolds. RJS is a simple method, which fabricates three-dimensional fibers by exploiting a high-speed rotating nozzle, creating a polymer jet which stretches until solidification, and does not require high voltage. In opposite, electrospinning technique needs the presence of an external electric field to create fiber from the polymeric jet solution. This article investigates both processes using two different biocompatible polymers: Poly(L-lactic acid) (PLLA) and Poly(e-caprolactone) (PCL). Samples were characterized by scanning electron microscopy, thermogravimetric analysis, differential scanning calorimeter, and Fourier-transform infrared spectroscopy. Morphological observations showed the efficiency of both techniques in obtaining nanofibers. Thermal analyses of data indicate immiscible property of different blends and the total solvent evaporation. In vitro cytocompatibility test showed that RJS and electrospinning samples exhibited good cytocompatibility. Based on these results, it may be concluded that the fibers obtained with both technologies are non-cytotoxicity and with good biocompatibility, and might be suitable for applications as scaffold for cell growth.CAPESFAPESPBiofabris-INCTBiomaterials Laboratory PUC/SP SorocabaUniv Estadual Campinas, Fac Engn Mecan, Campinas, SP, BrazilPontificia Univ Catolica, Sao Paulo, SP, BrazilUniv Fed ABC, Ctr Ciencias Nat & Humanas, Santo Andre, BrazilUniv Fed Sao Paulo, Dept Ciencias Mar, Santos, SP, BrazilUniv Fed Sao Paulo, Dept Ciencias Mar, Santos, SP, BrazilFAPESP: 2013/19372-0Web of Scienc

Implementation of clinical guidelines in Brazil : should academic detailing be used?

Objective: The Brazilian National Health System provides high cost medicines through the Specialized Component of Pharmaceutical Assistance in accordance with adherence to agreed Clinical Guidelines. However, physician compliance to these Guidelines, as well as the barriers and facilitators related to them and the influence on the subsequent quality of care provided is unknown. Consequently, the objectives of this paper are to undertake a review of international experiences and scientific publications of a strategy to disseminate and communicate guidelines to physicians through Academic Detailing. Subsequently use the findings to develop and conduct a pilot Academic Detailing Program in Brazil targeting specialists who prescribe medicines for patients with Alzheimer’s disease, which are part of the Specialized Component of Pharmaceutical Assistance. Methods: Review international experiences and scientific publications relating to academic detailing based on a thorough review of available literature including publications known to the co-authors. Develop and monitor physician acceptance of academic detailing for patients with Alzheimer’s Disease and the impact on future prescribing. Key findings: Based on the lessons learnt from the international experience and review, coupled with the initial experiences in Brazil, we conclude that conducting academic detailing to enhance the implementation and dissemination of clinical protocols and therapeutic guidelines in Brazil is worthwhile. We will be closely monitoring the outcome of the pilot academic detailing programme as a basis for developing future programmes to further improve the quality of prescribing in Brazil. Conclusion: Findings from the experiences are encouraging. This will be further explored to provide a basis for this approach in the future