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Back PI, Balestrin LA, Fachel FNS, Nemitz MC, Falkembach M, Soares G, Marques MDS, Silveira T, Dal Prá M, Horn AP, Braganhol E, von Poser GL, Dora CL, Teixeira HF. Hydrogels containing soybean isoflavone aglycones-rich fraction-loaded nanoemulsions for wound healing treatment - in vitro and in vivo studies. Colloids Surf B Biointerfaces 2020; 196:111301. [PMID: 32871442 DOI: 10.1016/j.colsurfb.2020.111301] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/21/2020] [Accepted: 07/30/2020] [Indexed: 11/23/2022]
Abstract
Soybean isoflavone aglycones have been investigated as potential wound healing compounds for topical application. The aim of this study was to evaluate the wound healing properties of a soybean isoflavone aglycones-rich fraction (IAF) when incorporated into lipid nanoemulsions dispersed in acrylic-acid hydrogels. Formulations exhibited a mean droplet size in the sub 200 nm range, negative ζ-potential (-60 mV), and displayed non-Newtonian pseudoplastic behavior. The addition of a gelling agent decreased the IAF release from formulations and improved the retention of these compounds in intact porcine ear skin when compared with a control propylene glycol solution. No IAF were detected in receptor fluid of Franz-type diffusion cells. However, increasing amounts of IAF were noticed in both skin layers and the receptor fluid when the tissue was partially injured (tape stripping), or when the epidermis was completely removed. In vitro studies showed that IAF elicits an increased proliferation and migration of keratinocytes (HaCaT cell line). Subsequently, the healing effect of the formulations was evaluated in a model of dorsal wounds in rats, by assessing the size of the lesions, histology, inflammatory markers, and antioxidant activity. Overall findings demonstrated the potential of IAF-loaded formulations to promote wound healing by increasing angiogenesis by ∼200 %, reducing the lipid oxidation (TBARS) by ∼52 % and the inflammation (TNFα) by ∼35 %, while increasing re-epithelialization by ∼500 %, visualized by the epithelium thickness.
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Affiliation(s)
- Patricia Inês Back
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Lucélia Albarello Balestrin
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | | | - Mariana Falkembach
- Programa de Pós-Graduação em Ciências da Saúde, Laboratório de Nanotecnologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Gabriela Soares
- Programa de Pós-Graduação em Ciências da Saúde, Laboratório de Nanotecnologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Magno da Silva Marques
- Programa de Pós-Graduação em Ciências Fisiológicas, Laboratório de Histologia, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Tony Silveira
- Programa de Pós-Graduação em Ciências da Saúde, Laboratório de Nanotecnologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Morgana Dal Prá
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Ana Paula Horn
- Programa de Pós-Graduação em Ciências Fisiológicas, Laboratório de Histologia, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Elizandra Braganhol
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Gilsane Lino von Poser
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Cristiana Lima Dora
- Programa de Pós-Graduação em Ciências da Saúde, Laboratório de Nanotecnologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Helder Ferreira Teixeira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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Back PI, Furtado LR, Nemitz MC, Balestrin LA, Fachel FNS, Gomes HM, Schuh RS, Moreira JC, von Poser GL, Teixeira HF. Skin Permeation and Oxidative Protection Effect of Soybean Isoflavones from Topical Nanoemulsions-a Comparative Study of Extracts and Pure Compounds. AAPS PharmSciTech 2018; 19:3029-3039. [PMID: 30084071 DOI: 10.1208/s12249-018-1133-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 07/19/2018] [Indexed: 12/12/2022] Open
Abstract
Soybean isoflavone-rich extracts have been considered as promising skin antiaging products due to their antioxidant activity. This study investigates the effect of soybean isoflavone forms on porcine ear skin permeation/retention from topical nanoemulsions and their potential in protecting skin against oxidative damage caused by UVA/UVB light. Soybean non-hydrolyzed (SNHE) and hydrolyzed (SHE) extracts, mainly composed of genistin and genistein, were produced. Nanoemulsions containing SNHE (NESNHE) and SHE (NESHE) were prepared by spontaneous emulsification procedure and yielded monodispersed nanoemulsions. A delay of isoflavone release was observed after extracts incorporation into nanoemulsions when compared to a propyleneglycol dispersion of pure compounds. An increase of isoflavone skin retention from nanoemulsions was also achieved. However, from extracts, a higher amount of genistin (NESNHE) and a lower amount of genistein (NESHE) were detected in the skin in comparison to pure isoflavones. Finally, the protection of porcine ear skin by formulations against UVA/UVB oxidative stress was evaluated. Extract-loaded nanoemulsions offered better skin protection than pure isoflavones. Skin lipids were similarly protected by NESHE and NESNHE, whereas skin proteins were more protected by NESNHE. Overall, nanoemulsions containing isoflavone-rich soybean extracts may be considered a better topical formulation aiming skin protection from UVA/UVB oxidative damage.
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Affiliation(s)
- Patricia Inês Back
- Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil
| | - Luisa Rodrigues Furtado
- Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil
| | - Marina Cardoso Nemitz
- Curso de Farmácia, Universidade Federal do Rio de Janeiro, Macaé, RJ, 27930-560, Brazil
| | - Lucélia Albarello Balestrin
- Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil
| | - Flávia Nathiely Silveira Fachel
- Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil
| | - Henrique Mautone Gomes
- Departamento de Bioquímica da Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos 2600, Porto Alegre, RS, CEP 90035-003, Brazil
| | - Roselena Silvestri Schuh
- Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil
| | - José Cláudio Moreira
- Departamento de Bioquímica da Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos 2600, Porto Alegre, RS, CEP 90035-003, Brazil
| | - Gilsane Lino von Poser
- Departamento de Produção de Matéria-Prima, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil
| | - Helder Ferreira Teixeira
- Departamento de Produção e Controle de Medicamentos, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, CEP 90610-000, Brazil.
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