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dc.contributor.authorBarbalho, Geisa Nascimento-
dc.contributor.authorFalcão, Manuel Alves-
dc.contributor.authorLopes, Jefferson Márcio Sanches-
dc.contributor.authorLopes, Júlia M.-
dc.contributor.authorContarato, Jonad Logan Adriano-
dc.contributor.authorGelfuso, Guilherme Martins-
dc.contributor.authorCunha Filho, Marcílio Sérgio Soares da-
dc.contributor.authorGratieri, Taís-
dc.date.accessioned2024-03-26T11:45:33Z-
dc.date.available2024-03-26T11:45:33Z-
dc.date.issued2023-09-15-
dc.identifier.citationBARBALHO, Geisa N. et al. Dynamic ex vivo porcine eye model to measure ophthalmic drug penetration under simulated lacrimal flow. Pharmaceutics, [S.l.], v. 15, n. 9, 15 set. 2023. DOI: https://doi.org/10.3390/pharmaceutics15092325. Disponível em: https://www.mdpi.com/1999-4923/15/9/2325. Acesso em: 23 março 2024.pt_BR
dc.identifier.urihttp://repositorio2.unb.br/jspui/handle/10482/48033-
dc.language.isoengpt_BR
dc.publisherMDPIpt_BR
dc.rightsAcesso Abertopt_BR
dc.titleDynamic ex vivo porcine eye model to measure ophthalmic drug penetration under simulated lacrimal flowpt_BR
dc.typeArtigopt_BR
dc.subject.keywordMedicamentos - administraçãopt_BR
dc.subject.keywordOftalmologiapt_BR
dc.subject.keywordModelo animalpt_BR
dc.rights.license© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).pt_BR
dc.identifier.doihttps://doi.org/10.3390/pharmaceutics15092325pt_BR
dc.description.abstract1Animal models are still used in the research and development of ophthalmic drug products, mainly due to the difficulty in simulating natural physiological conditions with in vitro models, as there is a lack of dynamic protection mechanisms. Therefore, developing alternative ophthalmic models that evaluate drug penetration in the cornea while applying dynamic protection barriers is a contemporary challenge. This study aimed to develop a dynamic ex vivo model using porcine eyes with a simulated lacrimal flow to evaluate the performance of pharmaceutical drug products. A glass donor cell to support a simulated tear flow was designed, optimized, and custom-made. The system was challenged with different formulations (with fluconazole) including excipients with different viscosities (poloxamer 407) and mucoadhesive properties (chitosan). The results were compared to those obtained from a conventional excised cornea model mounted in Franz-type diffusion cells. The dynamic model could differentiate formulations, while the static model did not, overestimating ex vivo drug penetrated amounts. Hence, the dynamic model with simulated tear flow showed to be a simple and promising new alternative method for the drug penetration of ophthalmic formulations that ultimately can reduce the number of animals used in research.pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-3092-0137pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-1924-7885pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9167-6852pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-6481-2364pt_BR
dc.contributor.affiliationUniversity of Brasilia, Laboratory of Food, Drugs, and Cosmetics (LTMAC)pt_BR
dc.contributor.affiliationUniversity of Brasilia, Laboratory of Food, Drugs, and Cosmetics (LTMAC)pt_BR
dc.contributor.affiliationFederal University of Pará, Physics Departmentpt_BR
dc.contributor.affiliationUniversity of Brasilia, Laboratory of Food, Drugs, and Cosmetics (LTMAC)pt_BR
dc.contributor.affiliationUniversity of Brasilia, Laboratory of Food, Drugs, and Cosmetics (LTMAC)pt_BR
dc.contributor.affiliationUniversity of Brasilia, Laboratory of Food, Drugs, and Cosmetics (LTMAC)pt_BR
dc.contributor.affiliationUniversity of Brasilia, Laboratory of Food, Drugs, and Cosmetics (LTMAC)pt_BR
dc.contributor.affiliationUniversity of Brasilia, Laboratory of Food, Drugs, and Cosmetics (LTMAC)pt_BR
dc.description.unidadeFaculdade de Ciências da Saúde (FS)pt_BR
dc.description.unidadeDepartamento de Farmácia (FS FAR)pt_BR
dc.description.ppgPrograma de Pós-Graduação em Ciências Farmacêuticaspt_BR
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