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Development and validation of a microbiological assay for determination of chlorhexidine digluconate in aqueous solution BJPS
Fiorentino,Flávia Angélica Másquio; Corrêa,Marcos Antonio; Salgado,Hérida Regina Nunes.
Chlorhexidine (CHX) is a broad-spectrum antiseptic that is used in many topical pharmaceutical formulations. Because there is no official microbiological assay reported in the literature that is used to quantify CHX, this paper reports the development and validation of a simple, sensitive, accurate and reproducible agar diffusion method for the dosage of chlorhexidine digluconate (CHX-D) in an aqueous solution. The assay is based on the inhibitory effect of CHX-D upon the strain of Staphylococcus aureus ATCC 25923, which is used as the test microorganism. The design 3x3 parallel-line model was used. The results were treated statistically by analysis of variance (ANOVA), and they were excellent in terms of linearity (r = 0.9999), presenting a significant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agar diffusion; Antiseptic; Chlorhexidine; Microbiological assay; Quality control; Validation.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502013000200017
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Corrositex®, BCOP and HET-CAM as alternative methods to animal experimentation BJPS
Cazedey,Edith Cristina Laignier; Carvalho,Flávia Chiva; Fiorentino,Flávia Angélica Másquio; Gremião,Maria Palmira Daflon; Salgado,Hérida Regina Nunes.
Tests in animals are used as models in toxicological and investigative studies. However, such tests have been considered inhumane because they can cause pain and suffering to experimental animals, while these methods can often be subjective. Protests calling for animal protection have questioned the effectiveness of in vivo tests and suggest the introduction of alternative, in vitro methods. International organizations, such as the Interagency Coordinating Committee on the Validation of Alternative Methods (ICCVAM), the National Institute of Health (NIH), the Organization for Economic Co-operation and Development (OECD), that regulate and develop new alternative animal models, have indicated the running of preliminary assays and execution of sequential...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Animal experimentation/alternative methods in vitro; Experiments/in vitro methods; Corrositex®/in vitro method/experiments; BCOP/in vitro method/experiments; HET-CAM/in vitro method/experiments.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000400021
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