| Study of tolnaftate release from fatty acids containing ointment and penetration into human skin ex vivo. | |
| | |
MedLine Citation:
|
PMID: 22125963 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
Five fatty acids (oleic, linoleic, myristic, lauric and capric) were incorporated in 10% (w/w) into ointment formulation and their influence on lipophilic model drug tolnaftate release in vitro and enhancing effect on tolnaftate penetration into epidermis and dermis of human skin ex vivo were investigated. The prepared ointments were tested for homogeneity, pH and theological properties. In vitro release studies and ex vivo skin penetration experiments were carried out using Hanson and Bronaugh-type flow-through diffusion cells, respectively. Tolnaftate cumulative amount liberated from semisolids was assayed using UV-Vis spectrophotometer. After in vitro skin penetration studies, appropriately extracted human skin layers were analyzed for tolnaftate content using a validated HPLC method. Statistical analysis revealed that release rate of tolnaftate from control ointment and ointments with fatty acids was not significantly different and only 7.34-8.98% of drug was liberated into an acceptor medium after 6 h. Tolnaftate amount penetrating into 1 cm2 of epidermis from ointments containing oleic, linoleic, myristic and lauric acids was significantly greater (p < 0.05) than from the control ointment. Penetration enhancing ratios for these fatty acids for tolnaftate penetration into epidermis ranged from 1.48 to 1.75. In conclusion, fatty acids did not increase the liberation of tolnaftate from ointment formulation, but demonstrated their enhancing effect on tolnaftate penetration into human epidermis in vitro. Results from in vitro release experiments do not suit for prediction of the situation in the skin in vitro, if chemical penetration enhancers are incorporated into the ointment formulation. |
| | |
Authors:
|
Toma Kezutyte; Tomas Drevinskas; Audrius Maruska; Rytis Rimdeika; Vitalis Briedis |
Related Documents
:
|
5693 - Influence of experimental dietary conditions on hepatic enzymes of glutamic acid metabo... 16530753 - Increased glutamate levels in the vitreous of patients with retinal detachment. 22577763 - Biocompatibility and antifibrotic effect of uv-cross-linked hyaluronate as a release-sy... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Acta poloniae pharmaceutica Volume: 68 ISSN: 0001-6837 ISO Abbreviation: Acta Pol Pharm Publication Date: 2011 Nov-Dec |
Date Detail:
|
Created Date: 2011-11-30 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 2985167R Medline TA: Acta Pol Pharm Country: Poland |
Other Details:
|
Languages: eng Pagination: 965-73 Citation Subset: IM |
Affiliation:
|
Department of Pharmaceutical Technology and Social Pharmacy, Faculty of Pharmacy, Lithuanian University of Health Sciences, A. Mickeviciaus 9, 44307 Kaunas, Lithuania. tomakezutyte@yahoo.com |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Development and evaluation of mucoadhesive buccal patches of flurbiprofen.
Next Document: Preparation of Eudragit E100 microspheres by modified solvent evaporation method.