Nanoformulations de nystatine pour une efficacité antifongique améliorée
dc.contributor.advisor | Leclair, Grégoire | |
dc.contributor.advisor | De Repentigny, Louis | |
dc.contributor.author | Melkoumov, Alexandre | |
dc.date.accessioned | 2014-03-25T13:59:44Z | |
dc.date.available | NO_RESTRICTION | fr |
dc.date.available | 2014-03-25T13:59:44Z | |
dc.date.issued | 2014-03-03 | |
dc.date.submitted | 2013-08 | |
dc.identifier.uri | http://hdl.handle.net/1866/10408 | |
dc.subject | Nanosuspension | fr |
dc.subject | Nystatine | fr |
dc.subject | Candidose oropharyngée | fr |
dc.subject | Pellicule orale | fr |
dc.subject | C. albicans | fr |
dc.subject | Nanobroyage | fr |
dc.subject | Efficacité antifongique | fr |
dc.subject | Nanocristaux | fr |
dc.subject | Modèle murin DBA/2 | fr |
dc.subject | Test in vitro sur disque | fr |
dc.subject | Nystatin | fr |
dc.subject | Oropharyngeal candidiasis | fr |
dc.subject | Film strip | fr |
dc.subject | nanomilling | fr |
dc.subject | antifungal efficacy | fr |
dc.subject | nanocristals | fr |
dc.subject | murine model DBA/2 | fr |
dc.subject | in vitro diffusion assays | fr |
dc.subject.other | Health Sciences - Pharmacy / Sciences de la santé - Pharmacie (UMI : 0572) | fr |
dc.title | Nanoformulations de nystatine pour une efficacité antifongique améliorée | fr |
dc.type | Thèse ou mémoire / Thesis or Dissertation | |
etd.degree.discipline | Sciences pharmaceutiques | fr |
etd.degree.grantor | Université de Montréal | fr |
etd.degree.level | Maîtrise / Master's | fr |
etd.degree.name | M. Sc. | fr |
dcterms.abstract | Hypothèse : Le nanobroyage d'une suspension de nystatine augmentera son efficacité antifongique in vitro et in vivo. Méthode : Une nanosupension de nystatine a été obtenue en utilisant le broyage humide. Elle a été caractérisée pour sa distribution de taille des particules et pour sa teneur en principe actif. L'activité in vitro a été évaluée contre les souches de C. albicans SC5314 et LAM-1 aux concentrations 12.5 μg/mL jusqu'à 5000 μg/mL. L'efficacité in vivo a été évaluée en utilisant un modèle murin de candidose oropharyngée. Résultats : La taille médiane des particules de la nanosuspension de nystatine a été réduite de 6577 nm à 137 nm. L'analyse CLHP a demontré une teneur de 98.7 ± 0.8%. L'activité in vitro de la nanosuspension était supérieure à la suspension aux concentrations 100 μg/mL à 5000 μg/mL. La charge fongique orale était inférieure dans le groupe traité par la nanosuspension comparativement aux autres groupes. La survie des souris était aussi supérieure. | fr |
dcterms.abstract | Hypothesis : Nanomilling of a nystatin suspension will increase its antifungal efficacy in vitro and in vivo. Methods: A nystatin nanosuspension was obtained using wet bead milling. It was characterized for its particle size distribution and for its drug content. In vitro activity was evaluted against C. albicans strains SC5314 and LAM-1 at concentrations of 12.5 μg/mL up to 5000 μg/mL. The in vivo efficacy was evaluated using a murine model of oropharyngeal candidiasis. Results: Median particle size of the nystatin nanosuspension was reduced from 6577 nm to 137 nm. HPLC analysis demonstrated a content assay of 98.7 ± 0.8%. In vitro activity of the nanosuspension was superior to the suspension’s at concentrations ranging from 100 μg/mL to 5000 μg/mL. Oral fungal burdens were inferor in the nanosuspension group compared to the suspension and saline groups. Mice survival was also superior in the nanosuspension group. | fr |
dcterms.language | fra | fr |
Files in this item
This item appears in the following Collection(s)
This document disseminated on Papyrus is the exclusive property of the copyright holders and is protected by the Copyright Act (R.S.C. 1985, c. C-42). It may be used for fair dealing and non-commercial purposes, for private study or research, criticism and review as provided by law. For any other use, written authorization from the copyright holders is required.