Currently, experimental animals are widely used in biological and medical research. However, the scientific community has raised several bioethical concerns, such as the number of animals required to achieve reproducible and statistically relevant results. These concerns involve aspects related to pain, discomfort, and unwanted animal loss.
View Article and Find Full Text PDFMounting evidence showing that local nitric oxide (NO) delivery may significantly improve the wound healing process has stimulated the development of wound dressings capable of releasing NO topically. Herein, we describe the preparation of a self-expandable NO-releasing hydrolyzed collagen sponge (CS), charged with the endogenously found NO donor, S-nitrosoglutathione (GSNO). We show that cold pressed and GSNO-charged CS (CS/GSNO) undergo self-expansion to its original 3D shape upon water absorption to a swelling degree of 2,300 wt%, triggering the release of free NO.
View Article and Find Full Text PDFUnlabelled: Topical nitric oxide (NO) delivery has been shown to accelerate wound healing. However, delivering NO to wounds at appropriate rates and doses requires new biomaterial-based strategies. Here, we describe the development of supramolecular interpolymer complex hydrogels comprising PEO-PPO-PEO (F127) micelles embedded in a poly(acrylic acid) (PAA) matrix, with S-nitrosoglutathione (GSNO) molecules dissolved in the hydrophilic domain.
View Article and Find Full Text PDFObjective Measure nursing workload required by patients submitted to autologous and allogeneic hematopoietic stem cell transplantation (HSCT) and analyze the Nursing Activities Score (NAS) of the nursing team during the hospitalization period for HSCT. Method A prospective cohort study conducted from January 2013 to April 2014 with 62 patients hospitalized in the HSCT unit of a university hospital in Campinas, São Paulo, Brazil. The workload was measured through NAS and data analysis was through chi-square test or Fisher's exact test, Mann-Whitney test and Spearman's correlation coefficient; with 5% significance level.
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