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Cohen A, Legouffe R, Mao J, Gaudin M, Bonnel D. MALDI Mass Spectrometry Imaging and Semi-Quantification of Topically Delivered Lactic Acid. Skin Res Technol 2023; 29:e13485. [PMID: 37881041 PMCID: PMC10579629 DOI: 10.1111/srt.13485] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 06/23/2023] [Accepted: 09/19/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND Lactic acid is a common active ingredient in many topical skincare products; however, measuring its delivery into the skin is challenging due to the presence of a large level of endogenous lactic acid. In this study, matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) was used to quantitatively and qualitatively measure the delivery of lactic acid into the skin from a range of topical skincare products. MATERIALS AND METHODS Porcine skin samples were treated with various skincare products containing lactic acid. After 24 h, skin samples were sectioned and treated via H&E staining or prepared for MALDI-MSI using chemical derivatization. Samples were then analyzed by MALDI-MSI imaging to obtain lactic acid distribution in the entire skin section. RESULTS Due to the high level of endogenous lactic acid in the skin, a "triple isotope" of lactic acid (L-Lactic acid-13 C3 ), was needed to provide full resolution from the skin's background signal with MALDI-MSI. With this approach, the topically delivered lactic acid could be quantitatively and qualitatively analyzed from a variety of skincare products. CONCLUSIONS The combination of L-Lactic acid-13 C3 and MALDI-MSI was successfully used to quantitatively and qualitatively measure the topical delivery of lactic acid from a variety of skincare products. This approach could be used in future work to better understand the mode of action of lactic acid as an active ingredient in skincare products.
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Affiliation(s)
- Aaron Cohen
- Personal Care Department of the Colgate‐Palmolive CompanyPiscatawayNew JerseyUSA
| | | | - Junhong Mao
- Personal Care Department of the Colgate‐Palmolive CompanyPiscatawayNew JerseyUSA
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2
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Salminen AT, Davis KJ, Felton RP, Nischal N, VonTungeln LS, Beland FA, Derr K, Brown PC, Ferrer M, Katz LM, Kleinstreuer NC, Leshin J, Manga P, Sadrieh N, Xia M, Fitzpatrick SC, Camacho L. Parallel evaluation of alternative skin barrier models and excised human skin for dermal absorption studies in vitro. Toxicol In Vitro 2023; 91:105630. [PMID: 37315744 PMCID: PMC10527924 DOI: 10.1016/j.tiv.2023.105630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 05/24/2023] [Accepted: 06/09/2023] [Indexed: 06/16/2023]
Abstract
Skin permeation is a primary consideration in the safety assessment of cosmetic ingredients, topical drugs, and human users handling veterinary medicinal products. While excised human skin (EHS) remains the 'gold standard' for in vitro permeation testing (IVPT) studies, unreliable supply and high cost motivate the search for alternative skin barrier models. In this study, a standardized dermal absorption testing protocol was developed to evaluate the suitability of alternative skin barrier models to predict skin absorption in humans. Under this protocol, side-by-side assessments of a commercially available reconstructed human epidermis (RhE) model (EpiDerm-200-X, MatTek), a synthetic barrier membrane (Strat-M, Sigma-Aldrich), and EHS were performed. The skin barrier models were mounted on Franz diffusion cells and the permeation of caffeine, salicylic acid, and testosterone was quantified. Transepidermal water loss (TEWL) and histology of the biological models were also compared. EpiDerm-200-X exhibited native human epidermis-like morphology, including a characteristic stratum corneum, but had an elevated TEWL as compared to EHS. The mean 6 h cumulative permeation of a finite dose (6 nmol/cm2) of caffeine and testosterone was highest in EpiDerm-200-X, followed by EHS and Strat-M. Salicylic acid permeated most in EHS, followed by EpiDerm-200-X and Strat-M. Overall, evaluating novel alternative skin barrier models in the manner outlined herein has the potential to reduce the time from basic science discovery to regulatory impact.
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Affiliation(s)
- Alec T Salminen
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Kelly J Davis
- Toxicologic Pathology Associates, Jefferson, AR, USA
| | - Robert P Felton
- Office of Scientific Coordination, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Nathania Nischal
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Linda S VonTungeln
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Frederick A Beland
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Kristy Derr
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Paul C Brown
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | - Marc Ferrer
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Linda M Katz
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, USA
| | - Nicole C Kleinstreuer
- National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Jonathan Leshin
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Rockville, MD, USA
| | - Prashiela Manga
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, USA
| | - Nakissa Sadrieh
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | - Menghang Xia
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Suzanne C Fitzpatrick
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, USA
| | - Luísa Camacho
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA.
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3
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Hossain ML, Nguyen M, Benington L, Lim LY, Hammer K, Hettiarachchi D, Locher C. Application of a Customised Franz-Type Cell Coupled with HPTLC to Monitor the Timed Release of Bioactive Components in Complex Honey Matrices. Methods Protoc 2023; 6:70. [PMID: 37623921 PMCID: PMC10459218 DOI: 10.3390/mps6040070] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/26/2023] Open
Abstract
The aim of this study was to assess the release profile of components in five different honeys (a New Zealand Manuka and two Western Australian honeys, a Jarrah honey and a Coastal Peppermint honey) and their corresponding honey-loaded gel formulations using a custom-designed Franz-type diffusion cell in combination with High-Performance Thin-Layer Chromatography (HPTLC). To validate the suitability of the customised setup, release data using this new approach were compared with data obtained using a commercial Franz cell apparatus, which is an established analytical tool to monitor the release of active ingredients from topical semisolid products. The release profiles of active compounds from pure honey and honey-loaded formulations were found to be comparable in both types of Franz cells. For example, when released either from pure honey or its corresponding pre-gel formulation, the percentage release of two Jarrah honey constituents, represented by distinct bands at RF 0.21 and 0.53 and as analysed by HPTLC, was not significantly different (p = 0.9986) at 12 h with over 99% of these honey constituents being released in both apparatus. Compared to the commercial Franz diffusion cell, the customised Franz cell offers several advantages, including easy and convenient sample application, the requirement of only small sample quantities, a large diffusion surface area, an ability to analyse 20 samples in a single experiment, and lower cost compared to purchasing a commercial Franz cell. Thus, the newly developed approach coupled with HPTLC is conducive to monitor the release profile of minor honey constituents from pure honeys and honey-loaded semisolid formulations and might also be applicable to other complex natural-product-based products.
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Affiliation(s)
- Md Lokman Hossain
- Division of Pharmacy, School of Allied Health, University of Western Australia, Crawley 6009, Australia; (M.L.H.); (M.N.); (L.B.); (L.Y.L.); (D.H.)
| | - Minh Nguyen
- Division of Pharmacy, School of Allied Health, University of Western Australia, Crawley 6009, Australia; (M.L.H.); (M.N.); (L.B.); (L.Y.L.); (D.H.)
| | - Leah Benington
- Division of Pharmacy, School of Allied Health, University of Western Australia, Crawley 6009, Australia; (M.L.H.); (M.N.); (L.B.); (L.Y.L.); (D.H.)
| | - Lee Yong Lim
- Division of Pharmacy, School of Allied Health, University of Western Australia, Crawley 6009, Australia; (M.L.H.); (M.N.); (L.B.); (L.Y.L.); (D.H.)
| | - Katherine Hammer
- School of Biomedical Sciences, University of Western Australia, Crawley 6009, Australia;
- Cooperative Research Centre for Honey Bee Products Limited, 128 Yanchep Beach Road, Perth 6035, Australia
| | - Dhanushka Hettiarachchi
- Division of Pharmacy, School of Allied Health, University of Western Australia, Crawley 6009, Australia; (M.L.H.); (M.N.); (L.B.); (L.Y.L.); (D.H.)
| | - Cornelia Locher
- Division of Pharmacy, School of Allied Health, University of Western Australia, Crawley 6009, Australia; (M.L.H.); (M.N.); (L.B.); (L.Y.L.); (D.H.)
- Cooperative Research Centre for Honey Bee Products Limited, 128 Yanchep Beach Road, Perth 6035, Australia
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Busto F, Licini C, Luccarini A, Damiani E, Mattioli-Belmonte M, Cometa S, De Giglio E. Oleuropein-Rich Gellan Gum/Alginate Films as Innovative Treatments against Photo-Induced Skin Aging. Molecules 2023; 28:molecules28114352. [PMID: 37298828 DOI: 10.3390/molecules28114352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/10/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Olea europaea L. leaf extracts (OLEs) represent highly value-added agro-industrial byproducts, being promising sources of significant antioxidant compounds, such as their main component, oleuropein. In this work, hydrogel films based on low-acyl gellan gum (GG) blended with sodium alginate (NaALG) were loaded with OLE and crosslinked with tartaric acid (TA). The films' ability to act as an antioxidant and photoprotectant against UVA-induced photoaging, thanks to their capability to convey oleuropein to the skin, were examined with the aim of a potential application as facial masks. Biological in vitro performances of the proposed materials were tested on normal human dermal fibroblasts (NhDFs), both under normal conditions and after aging-induced UVA treatment. Overall, our results clearly show the intriguing properties of the proposed hydrogels as effective and fully naturally formulated anti-photoaging smart materials for potential use as facial masks.
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Affiliation(s)
- Francesco Busto
- Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy
- INSTM, National Consortium of Materials Science and Technology, Via G. Giusti 9, 50121 Florence, Italy
| | - Caterina Licini
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Via Tronto 10/a, 60126 Ancona, Italy
| | - Alessia Luccarini
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Elisabetta Damiani
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Monica Mattioli-Belmonte
- INSTM, National Consortium of Materials Science and Technology, Via G. Giusti 9, 50121 Florence, Italy
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Via Tronto 10/a, 60126 Ancona, Italy
| | | | - Elvira De Giglio
- Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy
- INSTM, National Consortium of Materials Science and Technology, Via G. Giusti 9, 50121 Florence, Italy
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Trenkel M, Scherließ R. Optimising nasal powder drug delivery - Characterisation of the effect of excipients on drug absorption. Int J Pharm 2023; 633:122630. [PMID: 36690127 DOI: 10.1016/j.ijpharm.2023.122630] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023]
Abstract
The nasal physiology offers great potential for drug delivery but also poses specific challenges, among which the short residence time of applied drugs is one of the most striking. Formulating the drug as powder and using functional excipients are strategies to improve drug absorption. As nasal powders are still the minority on the market, there is a lack of data regarding their characterisation. This work aims at the characterisation of selected fillers (mannitol, microcrystalline cellulose) and mucoadhesives (pectin, chitosan glutamate, hydroxypropyl cellulose) with a set of methods that allows distinguishing their influences on dissolution and permeation of drugs, and on the viscoelasticity of the nasal fluid and thus the nasal residence time. Rheological studies revealed a potential of undissolved particles to prolong the residence time by increasing the elasticity of the nasal fluid. The assessment of drug dissolution showed a decreased dissolution rate in presence of insoluble or gelling excipients, which can be beneficial for drugs with low permeability, since embedded drugs are cleared slower than plain solutions. Drug permeation as important factor for the selection of excipients was evaluated with an RPMI 2650 cell model. Distinguishing the effects of excipients enables an effective selection of the most promising substances.
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Affiliation(s)
- Marie Trenkel
- Kiel University, Department of Pharmaceutics and Biopharmaceutics, Gutenbergstraße 76, 24118 Kiel, Germany
| | - Regina Scherließ
- Kiel University, Department of Pharmaceutics and Biopharmaceutics, Gutenbergstraße 76, 24118 Kiel, Germany; Priority Research Area Kiel Nano, Surface and Interface Sciences (KiNSIS), Kiel University, Kiel, Germany.
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6
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Neri I, Laneri S, Di Lorenzo R, Dini I, Russo G, Grumetto L. Parabens Permeation through Biological Membranes: A Comparative Study Using Franz Cell Diffusion System and Biomimetic Liquid Chromatography. Molecules 2022; 27. [PMID: 35807508 DOI: 10.3390/molecules27134263] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 01/27/2023] Open
Abstract
Parabens (PBs) are used as preservatives to extend the shelf life of various foodstuffs, and pharmaceutical and cosmetic preparations. In this work, the membrane barrier passage potential of a subset of seven parabens, i.e., methyl-, ethyl-, propyl- isopropyl, butyl, isobutyl, and benzyl paraben, along with their parent compound, p-hydroxy benzoic acid, were studied. Thus, the Franz cell diffusion (FDC) method, biomimetic liquid chromatography (BLC), and in silico prediction were performed to evaluate the soundness of both describing their permeation through the skin. While BLC allowed the achievement of a full scale of affinity for membrane phospholipids of the PBs under research, the permeation of parabens through Franz diffusion cells having a carbon chain > ethyl could not be measured in a fully aqueous medium, i.e., permeation enhancer-free conditions. Our results support that BLC and in silico prediction alone can occasionally be misleading in the permeability potential assessment of these preservatives, emphasizing the need for a multi-technique and integrated experimental approach.
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7
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Ferrara F, Benedusi M, Sguizzato M, Cortesi R, Baldisserotto A, Buzzi R, Valacchi G, Esposito E. Ethosomes and Transethosomes as Cutaneous Delivery Systems for Quercetin: A Preliminary Study on Melanoma Cells. Pharmaceutics 2022; 14:1038. [PMID: 35631628 PMCID: PMC9147749 DOI: 10.3390/pharmaceutics14051038] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/08/2022] [Accepted: 05/09/2022] [Indexed: 01/27/2023] Open
Abstract
The present study is aimed to design ethosomes and transethosomes for topical administration of quercetin. To overcome quercetin low bioavailability, scarce solubility and poor permeability that hamper its pharmaceutical use, the drug was loaded in ethosomes and transethosomes based on different concentrations of phosphatidylcholine. Vesicle morphology was studied by cryogenic transmission electron microscopy, while size distribution and quercetin entrapment capacity were evaluated up to 3 months, respectively, by photon correlation spectroscopy and high-performance liquid chromatography. The antioxidant property was studied by photochemiluminescence test. Quercetin release and permeation was investigated in vitro, using Franz cells associated to different membranes. In vitro assays were conducted on human keratinocytes and melanoma cells to study the behavior of quercetin-loaded nano-vesicular forms with respect to cell migration and proliferation. The results evidenced that both phosphatidylcholine concentration and quercetin affected the vesicle size. Quercetin entrapment capacity, antioxidant activity and size stability were controlled using transethosomes produced by the highest amount of phosphatidylcholine. In vitro permeation studies revealed an enhancement of quercetin permeation in the case of transethosomes with respect to ethosomes. Notably, scratch wound and migration assays suggested the potential of quercetin loaded-transethosomes as adjuvant strategy for skin conditions.
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Affiliation(s)
- Francesca Ferrara
- Department of Neuroscience and Rehabilitation, University of Ferrara, I-44121 Ferrara, Italy; (F.F.); (M.B.)
| | - Mascia Benedusi
- Department of Neuroscience and Rehabilitation, University of Ferrara, I-44121 Ferrara, Italy; (F.F.); (M.B.)
| | - Maddalena Sguizzato
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121-Ferrara, Italy or (M.S.); (R.C.)
| | - Rita Cortesi
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121-Ferrara, Italy or (M.S.); (R.C.)
| | - Anna Baldisserotto
- Department of Life Sciences and Biotechnology, University of Ferrara, I-44121 Ferrara, Italy; (A.B.); (R.B.)
| | - Raissa Buzzi
- Department of Life Sciences and Biotechnology, University of Ferrara, I-44121 Ferrara, Italy; (A.B.); (R.B.)
| | - Giuseppe Valacchi
- Department of Environmental and Prevention Sciences, University of Ferrara, I-44121 Ferrara, Italy
- Plants for Human Health Institute, Department of Animal Science, NC Research Campus Kannapolis, NC State University, Kannapolis, NC 28081, USA
- Department of Food and Nutrition, Kyung Hee University, Seoul 130-701, Korea
| | - Elisabetta Esposito
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121-Ferrara, Italy or (M.S.); (R.C.)
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8
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Magnano GC, Marussi G, Filon FL, Crosera M, Bovenzi M, Adami G. Transdermal permeation of inorganic cerium salts in intact human skin. Toxicol In Vitro 2022;:105381. [PMID: 35561953 DOI: 10.1016/j.tiv.2022.105381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/15/2022] [Accepted: 05/06/2022] [Indexed: 11/21/2022]
Abstract
The stratum corneum protects the body against external agents, such as metals, chemicals, and toxics. Although it is considered poorly permeable to them, comprising the major barrier to the permeation of such substances, it may become a relevant gate of entry for such molecules. Cerium (Ce) is a lanthanide that is widely used in catalytic, energy, biological and medicinal applications, owing to its intrinsic structural and unique redox properties. Cerium salts used to produce cerium oxide (CeO2) nanostructures can potentially come into contact with the skin and be absorbed following dermal exposure. The objective of this study was to investigate the percutaneous absorption of three inorganic Ce salts: cerium (III) chloride (CeCl3); cerium (III) nitrate (Ce(NO3)3) and ammonium cerium (IV) nitrate (Ce(NH4)2(NO3)6), which are commonly adopted for the synthesis of CeO2 using in vitro - ex vivo technique in Franz diffusion cells. The present work shows that Ce salts cannot permeate intact human skin, but they can penetrate significantly in the epidermis (up to 0.29 μg/cm2) and, to a lesser extent in dermis (up to 0.11 μg/cm2). Further studies are required to evaluate the potential effects of long-term exposure to Ce.
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9
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Ajjarapu K, Maibach HI. Flow-through versus static in vitro percutaneous penetration at 50 years: Possible relevance for bioequivalence. Skin Res Technol 2022; 28:540-543. [PMID: 35503886 PMCID: PMC9907696 DOI: 10.1111/srt.13154] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 03/09/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Compare the relevance of flow-through versus static diffusion cells data as relates to bioequivalence. METHODS Search was conducted on PubMed and Google Scholar. Keywords utilized: static cells, flow-through cells, percutaneous permeation, percutaneous absorption, dermal absorption, and types of permeation. RESULTS Fifteen articles were identified with no consistent significant differences between flow-through and static diffusion cells identified; any differences could exist for two main reasons. (1) Sampling time differences and (2) physical chemistry (lipophilic vs hydrophilic) of the penetrant examined. CONCLUSION Even though there was no consistent significant difference observed, labs have generally adapted to the method they regularly use, which is usually stated in their respective articles. Well-designed multicentered prospective comparative experiments should clarify potential advantages and disadvantages for each. For flow-through systems, the flow rate that most approximates to comparable in vivo data for animals and humans may be preferable.
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Affiliation(s)
- Krishna Ajjarapu
- Dermatology Department, University of California Medical School, San Francisco, California, USA
| | - Howard I Maibach
- Dermatology Department, University of California Medical School, San Francisco, California, USA
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10
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Magnano GC, Marussi G, Adami G, Crosera M, Larese Filon F. Assessment of dermal absorption of beryllium and copper contained in temple tips of eyeglasses. Toxicol Lett 2022; 361:64-71. [PMID: 35427767 DOI: 10.1016/j.toxlet.2022.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 11/10/2021] [Revised: 03/30/2022] [Accepted: 04/08/2022] [Indexed: 11/30/2022]
Abstract
Dermal exposure to hazardous substances such as chemicals, toxics, metallic items and other contaminants may present substantial danger for health. Beryllium (Be) is a hazardous metal, especially when inhaled and/or in direct contact with the skin, associated with chronic beryllium disease (CBD) and Be sensitization (BeS). The objective of this study was to investigate the percutaneous penetration of beryllium and copper contained in metallic items as eyeglass temple tips (specifically BrushCAST® Copper Beryllium Casting Alloys containing Be 0.35 < 2.85%; Cu 95.3-98.7%), using Franz diffusion cells. This work demonstrated that the total skin absorption of Cu was higher (8.86%) compared to Be (4.89%), which was expected based on the high percentage of Cu contained in the eyeglass temple tips. However, Be accumulated significantly in the epidermis and dermis (up to 0.461 µg/cm2) and, to a lesser extent, in the stratum corneum (up to 0.130 µg/cm2) with a flux of permeation of 3.52 ± 4.5 µg/cm2/hour and lag time of 2.3 ± 1.3 h, after cutaneous exposure of temple tip into 1.0 mL artificial sweat for 24 h. Our study highlights the importance of avoiding the use of Be alloys in items following long-term skin contact.
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Affiliation(s)
- Greta Camilla Magnano
- Clinical Unit of Occupational Medicine, University of Trieste, Italy; Department of Chemical and Pharmaceutical Sciences, University of Trieste, Italy.
| | - Giovanna Marussi
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Italy
| | - Gianpiero Adami
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Italy
| | - Matteo Crosera
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Italy
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11
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Champmartin C, Chedik L, Marquet F, Cosnier F. Occupational exposure assessment with solid substances: choosing a vehicle for in vitro percutaneous absorption experiments. Crit Rev Toxicol 2022; 52:294-316. [PMID: 36125048 DOI: 10.1080/10408444.2022.2097052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Percutaneous occupational exposure to industrial toxicants can be assessed in vitro on excised human or animal skins. Numerous factors can significantly influence skin permeation of chemicals and the flux determination. Among them, the vehicle used to solubilize the solid substances is a tricky key step. A "realistic surrogate" that closely matches the exposure scenario is recommended in first intention. When direct transposition of occupational exposure conditions to in vitro experiments is impossible, it is recommended that the vehicle used does not affect the skin barrier (in particular in terms of structural integrity, composition, or enzymatic activity). Indeed, any such effect could alter the percutaneous absorption of substances in a number of ways, as we will see. Potential effects are described for five monophasic vehicles, including the three most frequently used: water, ethanol, acetone; and two that are more rarely used, but are realistic: artificial sebum and artificial sweat. Finally, we discuss a number of criteria to be verified and the associated tests that should be performed when choosing the most appropriate vehicle, keeping in mind that, in the context of occupational exposure, the scientific quality of the percutaneous absorption data provided, and how they are interpreted, may have long-range consequences. From the narrative review presented, we also identify and discuss important factors to consider in future updates of the OECD guidelines for in vitro skin absorption experiments.
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Affiliation(s)
- Catherine Champmartin
- French National Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Vandoeuvre-les-Nancy Cedex, France
| | - Lisa Chedik
- French National Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Vandoeuvre-les-Nancy Cedex, France
| | - Fabrice Marquet
- French National Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Vandoeuvre-les-Nancy Cedex, France
| | - Frédéric Cosnier
- French National Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Vandoeuvre-les-Nancy Cedex, France
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12
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Sebe I, Zsidai L, Zelkó R. Novel modified vertical diffusion cell for testing of in vitro drug release (IVRT) of topical patches. HardwareX 2022; 11:e00293. [PMID: 35509921 PMCID: PMC9058821 DOI: 10.1016/j.ohx.2022.e00293] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 02/22/2022] [Accepted: 03/10/2022] [Indexed: 06/14/2023]
Abstract
The vertical diffusion cell is an in vitro laboratory device for the study of drug release and permeation of semi-solid topical formulations and topical patches. Both static and dynamic versions of the diffusion cell are used in practice, the operation of which can be automated. The device is available at a reasonable cost for smaller, mainly transdermal patches, the amount of sampling fluid is replenished at the same time as the sample, in the same amount as the amount sampled without automation of the system, and simultaneous replenishment of acceptor fluid by hydrostatic pressure helps keeping the acceptor chamber bubble-free.
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Affiliation(s)
- István Sebe
- University Pharmacy, Department of Pharmacy Administration, Semmelweis University, Hőgyes Endre Street 7-9, 1092 Budapest, Hungary
| | - László Zsidai
- Faculty of Mechanical Engineering, Szent István University, Páter Károly Street 1, Gödöllő H-2100, Hungary
| | - Romána Zelkó
- University Pharmacy, Department of Pharmacy Administration, Semmelweis University, Hőgyes Endre Street 7-9, 1092 Budapest, Hungary
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13
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Magnano GC, Marussi G, Pavoni E, Adami G, Larese Filon F, Crosera M. Percutaneous metals absorption following exposure to road dust powder. Environ Pollut 2022; 292:118353. [PMID: 34637821 DOI: 10.1016/j.envpol.2021.118353] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
The skin constitutes a protective barrier to external physical and chemical aggressions. Although it is constantly exposed to various xenobiotics, it is generally considered poorly permeable to them, as for example metal ions, becoming unfortunately an entry route of such substances. Metals may penetrate inside the skin inducing more or less local effects such as skin sensitization and potential metals diffusion into the bloodstream. The objective of the study was to investigate the percutaneous penetration of metals in vitro - ex vivo in Franz cell with intact as well damaged skin applying a road dust powder. Moreover, porcine and human skins were compared. This study demonstrated that, after the application of a road dust powder on the skin, metals can penetrate and permeate this cutaneous membrane. From this experimental analysis, in intact skin lead (Pb) achieved the highest skin absorption in both human and porcine skin, while skin absorption profile of cobalt (Co) was the lowest in human skin than the one in porcine model. The concentrations of Ni present in receiving solution were higher compared to other metals in all experiments performed. The present work, definitely shows that metals permeation through damaged skin is accelerated than intact skin, as a result of the weaker cutaneous barrier function. According to published data, pig skin appeared as a suitable model for human skin. Our results confirmed that skin absorption of metals can be relevant in environmental exposures.
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Affiliation(s)
| | - Giovanna Marussi
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Italy
| | - Elena Pavoni
- Department of Mathematics and Geosciences, University of Trieste, Italy
| | - Gianpiero Adami
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Italy
| | | | - Matteo Crosera
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Italy
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14
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Schlich M, Musazzi UM, Campani V, Biondi M, Franzé S, Lai F, De Rosa G, Sinico C, Cilurzo F. Design and development of topical liposomal formulations in a regulatory perspective. Drug Deliv Transl Res 2021; 12:1811-1828. [PMID: 34755281 PMCID: PMC8577404 DOI: 10.1007/s13346-021-01089-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2021] [Indexed: 01/29/2023]
Abstract
The skin is the absorption site for drug substances intended to treat loco-regional diseases, although its barrier properties limit the permeation of drug molecules. The growing knowledge of the skin structure and its physiology have supported the design of innovative nanosystems (e.g. liposomal systems) to improve the absorption of poorly skin-permeable drugs. However, despite the dozens of clinical trials started, few topically applied liposomal systems have been authorized both in the EU and the USA. Indeed, the intrinsic complexity of the topically applied liposomal systems, the higher production costs, the lack of standardized methods and the more stringent guidelines for assessing their benefit/risk balance can be seen as causes of such inefficient translation. The present work aimed to provide an overview of the physicochemical and biopharmaceutical characterization methods that can be applied to topical liposomal systems intended to be marketed as medicinal products, and the current regulatory provisions. The discussion highlights how such methodologies can be relevant for defining the critical quality attributes of the final product, and they can be usefully applied based on the phase of the life cycle of a liposomal product: to guide the formulation studies in the early stages of development, to rationally design preclinical and clinical trials, to support the pharmaceutical quality control system and to sustain post-marketing variations. The provided information can help define harmonized quality standards able to overcome the case-by-case approach currently applied by regulatory agencies in assessing the benefit/risk of the topically applied liposomal systems.
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Affiliation(s)
- Michele Schlich
- Dipartimento Di Scienze Della Vita E Dell'Ambiente, Sezione Scienze del Farmaco, Università Di Cagliari, via Ospedale 72, 09124, Cagliari, Italy.,Laboratory of Nanotechnology for Precision Medicine, Istituto Italiano Di Tecnologia, via Morego 30, 16163, Genoa, Italy
| | - Umberto M Musazzi
- Department of Pharmaceutical Sciences, Università Degli Studi Di Milano, via G. Colombo 71, 20133, Milan, Italy
| | - Virginia Campani
- Dipartimento Di Farmacia, Università Degli Studi Di Napoli Federico II, via D. Montesano 49, 80131, Naples, Italy
| | - Marco Biondi
- Dipartimento Di Farmacia, Università Degli Studi Di Napoli Federico II, via D. Montesano 49, 80131, Naples, Italy
| | - Silvia Franzé
- Department of Pharmaceutical Sciences, Università Degli Studi Di Milano, via G. Colombo 71, 20133, Milan, Italy
| | - Francesco Lai
- Dipartimento Di Scienze Della Vita E Dell'Ambiente, Sezione Scienze del Farmaco, Università Di Cagliari, via Ospedale 72, 09124, Cagliari, Italy
| | - Giuseppe De Rosa
- Dipartimento Di Farmacia, Università Degli Studi Di Napoli Federico II, via D. Montesano 49, 80131, Naples, Italy
| | - Chiara Sinico
- Dipartimento Di Scienze Della Vita E Dell'Ambiente, Sezione Scienze del Farmaco, Università Di Cagliari, via Ospedale 72, 09124, Cagliari, Italy
| | - Francesco Cilurzo
- Department of Pharmaceutical Sciences, Università Degli Studi Di Milano, via G. Colombo 71, 20133, Milan, Italy.
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Sklenářová H, Beran M, Novosvětská L, Šmejkalová D, Solich P. Sequential Injection Analysis for Automation and Evaluation of Drug Liberation Profiles: Clotrimazole Liberation Monitoring. Molecules 2021; 26:molecules26185538. [PMID: 34577009 PMCID: PMC8467677 DOI: 10.3390/molecules26185538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/06/2021] [Accepted: 09/09/2021] [Indexed: 01/18/2023] Open
Abstract
A fully automated sequential injection system was tested in terms of its application in liberation testing, and capabilities and limitations were discussed for clotrimazole liberation from three semisolid formulations. An evaluation based on kinetic profiles obtained in short and longer sampling intervals and steady-state flux values were applied as traditional methods. The obtained clotrimazole liberation profile was faster in the case of Delcore and slower for Clotrimazol AL and Canesten cream commercial formulations. The steady-state flux values for the tested formulations were 52 µg cm-2 h-1 for Canesten, 35 µg cm-2 h-1 for Clotrimazol AL, and 7.2 µg cm-2 h-1 for Delcore measured in 4 min sampling intervals. A simplified approach for the evaluation of the initial rate based on the gradient between the second and third sampling points was used for the first time and was found to correspond well with the results of the conventional methods. A comparison based on the ratio of the steady-state flux and the initial rate values for Canesten and Clotrimazol AL proved the similarity of the obtained results. The proposed alternative was successfully implemented for the comparison of short-term kinetic profiles. Consequently, a faster and simpler approach for dissolution/liberation testing can be used.
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Affiliation(s)
- Hana Sklenářová
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 500 05 Hradec Králové, Czech Republic; (M.B.); (L.N.); (P.S.)
- Correspondence: ; Tel.: +420-495-067-453
| | - Marek Beran
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 500 05 Hradec Králové, Czech Republic; (M.B.); (L.N.); (P.S.)
| | - Lucie Novosvětská
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 500 05 Hradec Králové, Czech Republic; (M.B.); (L.N.); (P.S.)
| | | | - Petr Solich
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 500 05 Hradec Králové, Czech Republic; (M.B.); (L.N.); (P.S.)
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Petrov E, Verkhovskiy A. Xenon as a transdermal enhancer for niacinamide in Strat-M™ membranes. Med Gas Res 2021; 12:24-27. [PMID: 34472499 PMCID: PMC8447954 DOI: 10.4103/2045-9912.320704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Xenon is confirmed to diffuse readily through membranes and has properties of transdermal enhancer. In this study, the ability of xenon to regulate the transdermal diffusion of niacinamide was investigated using a model of an artificial skin analogue of Strat-M™ membranes in Franz cells. Based on the data obtained, we found that in the simplified biophysical model of Strat-M™ membranes xenon exerts its enhancer effect based on the heterogeneous nucleation of xenon at the interfaces in the microporous structures of Strat-M™ membranes.
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Affiliation(s)
- Evgeny Petrov
- Laboratory of Biochemistry of Transport Systems, Faculty of Innovative Technologies, National Research Tomsk State University, Tomsk, Russian Federation
| | - Alexander Verkhovskiy
- Laboratory of Biochemistry of Transport Systems, Faculty of Innovative Technologies, National Research Tomsk State University, Tomsk, Russian Federation
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Hoang VC, Shafaat A, Jankovskaja S, Gomes VG, Ruzgas T. Franz cells for facile biosensor evaluation: A case of HRP/SWCNT-based hydrogen peroxide detection via amperometric and wireless modes. Biosens Bioelectron 2021; 191:113420. [PMID: 34182432 DOI: 10.1016/j.bios.2021.113420] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 06/01/2021] [Accepted: 06/05/2021] [Indexed: 12/26/2022]
Abstract
Reducing animal use in biosensor research requires broader use of in vitro methods. In this work, we present a novel application of Franz cells suitable for biosensor development and evaluation in vitro. The work describes how Franz cell can be equipped with electrodes enabling characterization of biosensors in close proximity to skin. As an example of a sensor, hydrogen peroxide biosensor was prepared based on horseradish peroxidase (HRP)/single-walled carbon nanotube (SWCNT)-modified textile. The electrode exhibited lower detection limit of 0.3 μM and sensitivity of 184 μA mM-1 cm-2. The ability of this biosensor to monitor H2O2 penetration through skin and dialysis membranes was evaluated in Franz cell setup in amperometric and wireless modes. The results also show that catalase activity present in skin is a considerable problem for epidermal sensing of H2O2. This work highlights opportunities and obstacles that can be addressed by assessment of biosensors in Franz cell setup before progressing to their testing in animals and humans.
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Affiliation(s)
- Van Chinh Hoang
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06, Malmö, Sweden; Biofilms - Research Center for Biointerfaces, Malmö University, SE-205 06, Malmö, Sweden; The University of Sydney, School of Chemical and Biomolecular Engineering, NSW, 2006, Australia
| | - Atefeh Shafaat
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06, Malmö, Sweden; Biofilms - Research Center for Biointerfaces, Malmö University, SE-205 06, Malmö, Sweden
| | - Skaidre Jankovskaja
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06, Malmö, Sweden; Biofilms - Research Center for Biointerfaces, Malmö University, SE-205 06, Malmö, Sweden
| | - Vincent G Gomes
- The University of Sydney, School of Chemical and Biomolecular Engineering, NSW, 2006, Australia.
| | - Tautgirdas Ruzgas
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06, Malmö, Sweden; Biofilms - Research Center for Biointerfaces, Malmö University, SE-205 06, Malmö, Sweden.
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Hallan SS, Sguizzato M, Drechsler M, Mariani P, Montesi L, Cortesi R, Björklund S, Ruzgas T, Esposito E. The Potential of Caffeic Acid Lipid Nanoparticulate Systems for Skin Application: In Vitro Assays to Assess Delivery and Antioxidant Effect. Nanomaterials (Basel) 2021; 11:nano11010171. [PMID: 33445433 PMCID: PMC7826983 DOI: 10.3390/nano11010171] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/08/2021] [Accepted: 01/09/2021] [Indexed: 02/06/2023]
Abstract
The object of this study is a comparison between solid lipid nanoparticles and ethosomes for caffeic acid delivery through the skin. Caffeic acid is a potent antioxidant molecule whose cutaneous administration is hampered by its low solubility and scarce stability. In order to improve its therapeutic potential, caffeic acid has been encapsulated within solid lipid nanoparticles and ethosomes. The effect of lipid matrix has been evaluated on the morphology and size distribution of solid lipid nanoparticles and ethosomes loaded with caffeic acid. Particularly, morphology has been investigated by cryogenic transmission electron microscopy and small angle X-ray scattering, while mean diameters have been evaluated by photon correlation spectroscopy. The antioxidant power has been evaluated by the 2,2-diphenyl-1-picrylhydrazyl methodology. The influence of the type of nanoparticulate system on caffeic acid diffusion has been evaluated by Franz cells associated to the nylon membrane, while to evaluate caffeic acid permeation through the skin, an amperometric study has been conducted, which was based on a porcine skin-covered oxygen electrode. This apparatus allows measuring the O2 concentration changes in the membrane induced by polyphenols and H2O2 reaction in the skin. The antioxidative reactions in the skin induced by caffeic acid administered by solid lipid nanoparticles or ethosomes have been evaluated. Franz cell results indicated that caffeic acid diffusion from ethosomes was 18-fold slower with respect to solid lipid nanoparticles. The amperometric method evidenced the transdermal delivery effect of ethosome, indicating an intense antioxidant activity of caffeic acid and a very low response in the case of SLN. Finally, an irritation patch test conducted on 20 human volunteers demonstrated that both ethosomes and solid lipid nanoparticles can be safely applied on the skin.
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Affiliation(s)
- Supandeep Singh Hallan
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, I-44121 Ferrara, Italy; (S.S.H.); (M.S.)
- Biofilms—Research Center for Biointerfaces, Faculty of Health and Society, Malmö University, SE-20506 Malmö, Sweden;
| | - Maddalena Sguizzato
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, I-44121 Ferrara, Italy; (S.S.H.); (M.S.)
| | - Markus Drechsler
- Bavarian Polymerinstitute “Electron and Optical Microscopy”, University of Bayreuth, D-95440 Bayreuth, Germany;
| | - Paolo Mariani
- Department of Life and Environmental Sciences, Polytechnic University of Marche, I-60131 Ancona, Italy;
| | - Leda Montesi
- Department of Life Sciences and Biotechnology, University of Ferrara, I-44121 Ferrara, Italy;
| | - Rita Cortesi
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, I-44121 Ferrara, Italy; (S.S.H.); (M.S.)
- Correspondence: (R.C.); (T.R.); (E.E.); Tel.: +39-0532-455259 (R.C.); +46-40-6657431 (T.R.); +39-0532-455230 (E.E.)
| | - Sebastian Björklund
- Biofilms—Research Center for Biointerfaces, Faculty of Health and Society, Malmö University, SE-20506 Malmö, Sweden;
| | - Tautgirdas Ruzgas
- Biofilms—Research Center for Biointerfaces, Faculty of Health and Society, Malmö University, SE-20506 Malmö, Sweden;
- Correspondence: (R.C.); (T.R.); (E.E.); Tel.: +39-0532-455259 (R.C.); +46-40-6657431 (T.R.); +39-0532-455230 (E.E.)
| | - Elisabetta Esposito
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, I-44121 Ferrara, Italy; (S.S.H.); (M.S.)
- Correspondence: (R.C.); (T.R.); (E.E.); Tel.: +39-0532-455259 (R.C.); +46-40-6657431 (T.R.); +39-0532-455230 (E.E.)
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Nowak A, Cybulska K, Makuch E, Kucharski Ł, Różewicka-Czabańska M, Prowans P, Czapla N, Bargiel P, Petriczko J, Klimowicz A. In Vitro Human Skin Penetration, Antioxidant and Antimicrobial Activity of Ethanol-Water Extract of Fireweed ( Epilobium angustifolium L.). Molecules 2021; 26:E329. [PMID: 33435259 PMCID: PMC7827182 DOI: 10.3390/molecules26020329] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 11/17/2022] Open
Abstract
Epilobium angustifolium L. is applied as an antiseptic agent in the treatment of skin diseases. However, there is a lack of information on human skin penetration of active ingredients with antioxidative potential. It seems crucial because bacterial infections of skin and subcutaneous tissue are common and partly depend on oxidative stress. Therefore, we evaluated in vitro human skin penetration of fireweed ethanol-water extracts (FEEs) by determining antioxidant activity of these extracts before and after penetration study using 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), and Folin-Ciocalteu methods. Microbiological tests of extracts were done. The qualitative and quantitative evaluation was performed using gas chromatography-mass spectrometry (GC-MS) and high-performance liquid chromatography (HPLC-UV) methods. The in vitro human skin penetration using the Franz diffusion chamber was assessed. The high antioxidant activity of FEEs was found. Gallic acid (GA), chlorogenic acid (ChA), 3,4-dihydroxybenzoic acid (3,4-DHB), 4-hydroxybenzoic acid (4-HB), and caffeic acid (CA) were identified in the extracts. The antibacterial activities were found against Serratia lutea, S. marcescens, Bacillus subtilis, B. pseudomycoides, and B. thuringiensis and next Enterococcus faecalis, E. faecium, Streptococcus pneumoniae, Pseudomonas aeruginosa, and P. fluorescens strains. In vitro penetration studies showed the penetration of some phenolic acids and their accumulation in the skin. Our results confirm the importance of skin penetration studies to guarantee the efficacy of formulations containing E. angustifolium extracts.
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Affiliation(s)
- Anna Nowak
- Department of Cosmetic and Pharmaceutical Chemistry, Pomeranian Medical University in Szczecin, PL-70111 Szczecin, Poland; (Ł.K.); (A.K.)
| | - Krystyna Cybulska
- Department of Microbiology and Environmental Chemistry, Faculty of Environmental Management and Agriculture, West Pomeranian University of Technology, Szczecin, PL-71434 Szczecin, Poland;
| | - Edyta Makuch
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, PL-70322 Szczecin, Poland;
| | - Łukasz Kucharski
- Department of Cosmetic and Pharmaceutical Chemistry, Pomeranian Medical University in Szczecin, PL-70111 Szczecin, Poland; (Ł.K.); (A.K.)
| | - Monika Różewicka-Czabańska
- Clinic of Skin and Venereal Diseases, Pomeranian Medical University in Szczecin, PL-72010 Police, Poland;
| | - Piotr Prowans
- Department of Plastic, Endocrine and General Surgery, Pomeranian Medical University in Szczecin, PL-72010 Police, Poland; (P.P.); (N.C.); (P.B.); (J.P.)
| | - Norbert Czapla
- Department of Plastic, Endocrine and General Surgery, Pomeranian Medical University in Szczecin, PL-72010 Police, Poland; (P.P.); (N.C.); (P.B.); (J.P.)
| | - Piotr Bargiel
- Department of Plastic, Endocrine and General Surgery, Pomeranian Medical University in Szczecin, PL-72010 Police, Poland; (P.P.); (N.C.); (P.B.); (J.P.)
| | - Jan Petriczko
- Department of Plastic, Endocrine and General Surgery, Pomeranian Medical University in Szczecin, PL-72010 Police, Poland; (P.P.); (N.C.); (P.B.); (J.P.)
| | - Adam Klimowicz
- Department of Cosmetic and Pharmaceutical Chemistry, Pomeranian Medical University in Szczecin, PL-70111 Szczecin, Poland; (Ł.K.); (A.K.)
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de Souza Teixeira L, Vila Chagas T, Alonso A, Gonzalez-Alvarez I, Bermejo M, Polli J, Rezende KR. Biomimetic Artificial Membrane Permeability Assay over Franz Cell Apparatus Using BCS Model Drugs. Pharmaceutics 2020; 12:E988. [PMID: 33086670 DOI: 10.3390/pharmaceutics12100988] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/09/2020] [Accepted: 10/10/2020] [Indexed: 11/17/2022] Open
Abstract
A major parameter controlling the extent and rate of oral drug absorption is permeability through the lipid bilayer of intestinal epithelial cells. Here, a biomimetic artificial membrane permeability assay (Franz-PAMPA Pampa) was validated using a Franz cells apparatus. Both high and low permeability drugs (metoprolol and mannitol, respectively) were used as external standards. Biomimetic properties of Franz-PAMPA were also characterized by electron paramagnetic resonance spectroscopy (EPR). Moreover, the permeation profile for eight Biopharmaceutic Classification System (BCS) model drugs cited in the FDA guidance and another six drugs (acyclovir, cimetidine, diclofenac, ibuprofen, piroxicam, and trimethoprim) were measured across Franz-PAMPA. Apparent permeability (Papp) Franz-PAMPA values were correlated with fraction of dose absorbed in humans (Fa%) from the literature. Papp in Caco-2 cells and Corti artificial membrane were likewise compared to Fa% to assess Franz-PAMPA performance. Mannitol and metoprolol Papp values across Franz-PAMPA were lower (3.20 × 10-7 and 1.61 × 10-5 cm/s, respectively) than those obtained across non-impregnated membrane (2.27 × 10-5 and 2.55 × 10-5 cm/s, respectively), confirming lipidic barrier resistivity. Performance of the Franz cell permeation apparatus using an artificial membrane showed acceptable log-linear correlation (R2 = 0.664) with Fa%, as seen for Papp in Caco-2 cells (R2 = 0.805). Data support the validation of the Franz-PAMPA method for use during the drug discovery process.
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Makuch E, Nowak A, Günther A, Pełech R, Kucharski Ł, Duchnik W, Klimowicz A. Enhancement of the antioxidant and skin permeation properties of eugenol by the esterification of eugenol to new derivatives. AMB Express 2020; 10:187. [PMID: 33078274 PMCID: PMC7572966 DOI: 10.1186/s13568-020-01122-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 10/05/2020] [Indexed: 12/02/2022] Open
Abstract
The aim of the study was to determine the antioxidant activity and assess the lipophilicity and skin penetration of eugenyl chloroacetate (EChA), eugenyl dichloroacetate (EDChA), and eugenyl trichloroacetate (ETChA). Identification of the obtained products was based on gas chromatography (GC), infrared spectroscopy (FTIR/ATR), gas chromatography coupled with mass spectrometry (GC-MS), and the analysis of 13C-NMR and 1H-NMR spectra. The antioxidative capacity of the derivatives obtained was determined by the DPPH free radical reduction method, while the octanol/water partition coefficient (shake-flask method) was tested to determine the lipophilicity of these compounds. In the next stage of testing EDChA and ETChA-(compounds characterized by the highest degree of free radical scavenging), the penetration of DPPH through pig skin and its accumulation in the skin were evaluated. For comparison, penetration studies of eugenol alone as well as dichloroacetic acid (DChAA) and trichloroacetic acid (TChAA) were also carried out. The antioxidant activity (DPPH, ABTS, and Folin-Ciocalteu methods) of the fluid that penetrated through pig skin was also evaluated. The in vitro pig skin penetration study showed that eugenol derivatives are particularly relevant for topical application. The obtained derivatives were characterized by a high level of antioxidant activity estimated after 24 h of conducting the experiment, which indicates long-term protection against reactive oxygen species (ROS) in the deeper layers of the skin.
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Affiliation(s)
- Edyta Makuch
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Pulaskiego 10, 70–322 Szczecin, Poland
| | - Anna Nowak
- Department of Cosmetic and Pharmaceutical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich Ave. 72, 70–111 Szczecin, Poland
| | - Andrzej Günther
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Pulaskiego 10, 70–322 Szczecin, Poland
| | - Robert Pełech
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Pulaskiego 10, 70–322 Szczecin, Poland
| | - Łukasz Kucharski
- Department of Cosmetic and Pharmaceutical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich Ave. 72, 70–111 Szczecin, Poland
| | - Wiktoria Duchnik
- Department of Cosmetic and Pharmaceutical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich Ave. 72, 70–111 Szczecin, Poland
| | - Adam Klimowicz
- Department of Cosmetic and Pharmaceutical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich Ave. 72, 70–111 Szczecin, Poland
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García-Villén F, Sánchez-Espejo R, Borrego-Sánchez A, Cerezo P, Cucca L, Sandri G, Viseras C. Correlation between Elemental Composition/Mobility and Skin Cell Proliferation of Fibrous Nanoclay/Spring Water Hydrogels. Pharmaceutics 2020; 12:E891. [PMID: 32962099 PMCID: PMC7559572 DOI: 10.3390/pharmaceutics12090891] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/12/2020] [Accepted: 09/17/2020] [Indexed: 11/20/2022] Open
Abstract
Inorganic hydrogels formulated with spring waters and clay minerals are used to treat musculoskeletal disorders and skin affections. Their underlying mechanism of action for skin disorders is not clear, although it is usually ascribed to the chemical composition of the formulation. The aim of this study was to assess the composition and in vitro release of elements with potential wound healing effects from hydrogels prepared with two nanoclays and natural spring water. In vitro Franz cell studies were used and the element concentration was measured by inductively coupled plasma techniques. Biocompatibility studies were used to evaluate the potential toxicity of the formulation against fibroblasts. The studied hydrogels released elements with known therapeutic interest in wound healing. The released ratios of some elements, such as Mg:Ca or Zn:Ca, played a significant role in the final therapeutic activity of the formulation. In particular, the proliferative activity of fibroblasts was ascribed to the release of Mn and the Zn:Ca ratio. Moreover, the importance of formulative studies is highlighted, since it is the optimal combination of the correct ingredients that makes a formulation effective.
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Affiliation(s)
- Fátima García-Villén
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 Granada, Spain; (F.G.-V.); (P.C.)
| | - Rita Sánchez-Espejo
- Andalusian Institute of Earth Sciences, CSIC-UGR (Consejo Superior de Investigaciones Científicas-Universidad de Granada), Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain; (R.S.-E.); (A.B.-S.)
| | - Ana Borrego-Sánchez
- Andalusian Institute of Earth Sciences, CSIC-UGR (Consejo Superior de Investigaciones Científicas-Universidad de Granada), Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain; (R.S.-E.); (A.B.-S.)
| | - Pilar Cerezo
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 Granada, Spain; (F.G.-V.); (P.C.)
| | - Lucia Cucca
- Department of Chemistry, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy;
| | - Giuseppina Sandri
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy;
| | - César Viseras
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 Granada, Spain; (F.G.-V.); (P.C.)
- Andalusian Institute of Earth Sciences, CSIC-UGR (Consejo Superior de Investigaciones Científicas-Universidad de Granada), Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain; (R.S.-E.); (A.B.-S.)
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Zsikó S, Csányi E, Kovács A, Budai-Szűcs M, Gácsi A, Berkó S. Novel In Vitro Investigational Methods for Modeling Skin Permeation: Skin PAMPA, Raman Mapping. Pharmaceutics 2020; 12:E803. [PMID: 32854296 DOI: 10.3390/pharmaceutics12090803] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/19/2020] [Accepted: 08/23/2020] [Indexed: 12/20/2022] Open
Abstract
The human skin is marked as a standard by the regulatory agencies in the permeation study of dermal formulations. Artificial membranes can substitute human skin to some extent. Academicians and pharmaceutical corporations are focusing their efforts on developing standardized protocols and safe, reliable options to substitute human skin for carrying out permeability studies. Our research aim was to study the applicability of new techniques in the case of different types of dermal formulations. The skin parallel artificial membrane permeability assay (PAMPA) method and Raman mapping were compared to the gold-standard Franz cell method. A hydrogel and two types of creams were investigated as the most generally used dermal preparations. The values of the diffused drug were closer to each other in PAMPA and Franz cell measurement. The diffused amount of drug showed the same order for the different formulations. These results correlate well with the results of Raman mapping. Our conclusions suggest that all early screening examinations can be performed with model tools such as skin PAMPA supplemented with methods like Raman mapping as a semi-quantitative method.
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Petralito S, Paolicelli P, Nardoni M, Tedesco A, Trilli J, Di Muzio L, Cesa S, Casadei MA, Adrover A. Gelation of the internal core of liposomes as a strategy for stabilization and modified drug delivery II. Theoretical analysis and modelling of in-vitro release experiments. Int J Pharm 2020; 585:119471. [PMID: 32479896 DOI: 10.1016/j.ijpharm.2020.119471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/20/2020] [Accepted: 05/23/2020] [Indexed: 10/24/2022]
Abstract
PEG-DMA was incorporated in unilamellar liposomes. PEG-DMA crosslinking by photo-induced radical reaction transforms the liquid aqueous core of the liposome into a hydrogel. The molecular weight of PEG-DMA significantly influences both structural and release properties of these hybrid nanosystems, by affecting both membrane permeability and diffusional properties of the inner core. Release studies of 5-(6) carboxyfluorescein from Conventional Liposomes (CL) and Gel-in-Liposome (GiL) systems were carried out in a vertical Franz Diffusion Cell. A detailed transport model is proposed, aimed at describing the entire drug diffusive pathway from the vesicles' inner core, through the double-layer membrane, into the buffer solution in the donor chamber of the Franz Cell and from there to the receptor chamber, where withdrawals are performed to evaluate the released drug concentration. The model permits to give a quantitative estimate of the diffusional resistances offered by the inner core (liquid or gelled) and by the double-layer membrane for CLs and different GiLs systems. The theoretical analysis of experimental release data strongly supports the basic assumption that, by varying the molecular weight of PEG-DMA, a different arrangement of the polymer within the liposomal structure and a different interaction with the membrane occur. PEG750-DMA decreases the transport resistance of the double layer membrane with respect to CLs, while PEG4000-DMA plays the opposite role. After gelation of the internal core, the diffusional resistance to drug transport inside GiLs becomes controlling, thus significantly slowing down drug release from these systems. Therefore, the combination of PEG-DMA with phospholipid vesicles appears an interesting strategy to develop sustained drug delivery systems.
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Affiliation(s)
- Stefania Petralito
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Patrizia Paolicelli
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Martina Nardoni
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Andrea Tedesco
- Dipartimento di Ingegneria Chimica, Materiali e Ambiente, Sapienza Università di Roma, Via Eudossiana 18, 00184 Rome, Italy
| | - Jordan Trilli
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Laura Di Muzio
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Stefania Cesa
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Maria Antonietta Casadei
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Alessandra Adrover
- Dipartimento di Ingegneria Chimica, Materiali e Ambiente, Sapienza Università di Roma, Via Eudossiana 18, 00184 Rome, Italy
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Vanti G, Wang M, Bergonzi MC, Zhidong L, Bilia AR. Hydroxypropyl methylcellulose hydrogel of berberine chloride-loaded escinosomes: Dermal absorption and biocompatibility. Int J Biol Macromol 2020; 164:232-41. [PMID: 32682035 DOI: 10.1016/j.ijbiomac.2020.07.129] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/29/2020] [Accepted: 07/11/2020] [Indexed: 01/05/2023]
Abstract
Aim of this work was to prepare and characterize new nanocarrier-loaded hydrogel formulations for topical application, using hydroxypropyl methylcellulose (HMPC) and special nanovesicles, the escinosomes. The combination of the two technological strategies, nanocarriers and hydrogels, was selected to circumvent some drawbacks of nanovesicles and develop stable and efficient skin-delivery platforms. HPMC is a derivative of cellulose with a wide range of physicochemical properties, forming suitable hydrogel for dermatological applications. Escinosomes, made of escin (ESN), a natural bioactive saponin, plus phosphatidylcholine, were loaded with berberine chloride (BRB), a bioactive natural product, and were entrapped in the polymeric matrix of HPMC. Release and permeation properties of aqueous ESN and BRB dispersions, escinosomes were compared with the corresponding hydrogels. Viscosity measurements evidenced their suitability for topical applications. In vitro permeation experiments showed a higher residence time of the HPMC-hydrogel. Thus, the new escinosome HPMC-hydrogel formulations combine the advantages of a modified release and increased transdermal permeability (escinosome components), with better viscosity properties (polysaccharide matrix). In addition, the developed HPMC-hydrogels also had a very good safety profile and skin biocompatibility studies showed no potentially hazardous skin irritation. Finally, the developed escinosome HMPC-hydrogel formulations were very stable with appropriate mechanical properties.
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Cohen Y, Rutenberg R, Cohen G, Veltman B, Gvirtz R, Fallik E, Danino D, Eltzov E, Poverenov E. Aminated Polysaccharide-Based Nanoassemblies as Stable Biocompatible Vehicles Enabling Crossing of Biological Barriers: An Effective Transdermal Delivery of Diclofenac Medicine. ACS Appl Bio Mater 2020; 3:2209-2217. [PMID: 35025273 DOI: 10.1021/acsabm.0c00048] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of stable polysaccharide derivatives that spontaneously self-assemble into nanocarriers was synthesized by applying a reductive amination on chitosan. The prepared nanocarriers were comprehensively studied and found to allow encapsulation of molecular cargo in both aqueous and lipidic media and deliver this cargo across biological barriers. The nanocarriers have demonstrated effective transdermal delivery of diclofenac (Voltaren), a nonsteroidal anti-inflammatory drug, by increasing its skin permeation up to 100 vs the tested control. The modified polysaccharides were studied with a panel of three types of bioreporter bacteria sensitive to genotoxic and cytotoxic stresses. These studies showed the general safety of the prepared nanocarriers and provided insights concerning their activity in collaboration with the aliphatic side chain length. The described nanocarriers could be applied as tunable biocompatible vehicles for the delivery of medicines, cosmetic agents, and in other applications.
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Affiliation(s)
- Yael Cohen
- Agro-Nanotechnology and Advanced Materials Center, Institute of Postharvest and Food Sciences, Agriculture Research Organization, The Volcani Center, Rishon LeZion 7505101, Israel.,Institute of Biochemistry, Food Science and Nutrition, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel
| | - Roi Rutenberg
- Agro-Nanotechnology and Advanced Materials Center, Institute of Postharvest and Food Sciences, Agriculture Research Organization, The Volcani Center, Rishon LeZion 7505101, Israel.,Institute of Biochemistry, Food Science and Nutrition, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel.,Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Guy Cohen
- The Skin Research Institute, Dead Sea & Arava Science Center, Masada 86910, Israel
| | - Boris Veltman
- Agro-Nanotechnology and Advanced Materials Center, Institute of Postharvest and Food Sciences, Agriculture Research Organization, The Volcani Center, Rishon LeZion 7505101, Israel.,Institute of Biochemistry, Food Science and Nutrition, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel
| | - Raanan Gvirtz
- The Skin Research Institute, Dead Sea & Arava Science Center, Masada 86910, Israel
| | - Elazar Fallik
- Agro-Nanotechnology and Advanced Materials Center, Institute of Postharvest and Food Sciences, Agriculture Research Organization, The Volcani Center, Rishon LeZion 7505101, Israel
| | - Dganit Danino
- CryoEM Laboratory of Soft Matter, Faculty of Biotechnology & Food Engineering, Technion - Israel Institute of Technology, Haifa 3200003, Israel
| | - Evgeni Eltzov
- Agro-Nanotechnology and Advanced Materials Center, Institute of Postharvest and Food Sciences, Agriculture Research Organization, The Volcani Center, Rishon LeZion 7505101, Israel
| | - Elena Poverenov
- Agro-Nanotechnology and Advanced Materials Center, Institute of Postharvest and Food Sciences, Agriculture Research Organization, The Volcani Center, Rishon LeZion 7505101, Israel
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27
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Tarnowska M, Briançon S, Resende de Azevedo J, Chevalier Y, Arquier D, Barratier C, Bolzinger MA. The effect of vehicle on skin absorption of Mg 2+ and Ca 2+ from thermal spring water. Int J Cosmet Sci 2020; 42:248-258. [PMID: 32027379 DOI: 10.1111/ics.12607] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 01/30/2020] [Accepted: 02/05/2020] [Indexed: 01/28/2023]
Abstract
OBJECTIVE Thermal spring waters (TSW) are commonly used as active ingredients in cosmetics. Their biological activities directly depend on the ionic composition of the spring. However, in order to exhibit beneficial properties, the minerals need to reach viable skin layers. The present study addresses the incorporation of marketed TSW in model cosmetic formulations and the impact of the formulation on skin absorption of magnesium and calcium ions that are known to improve skin barrier function. METHODS Marketed TSW was introduced into five formulations. Liposomes were prepared using saturated or unsaturated phospholipids mixed with cholesterol by the thin layer evaporation technique. Emulsions water-in-oil (W/O), oil-in-water (O/W) or double: water-in-oil-in-water (W/O/W) were prepared by high-shear mixing. Skin absorption of Mg2+ and Ca2+ from those formulations was studied in vitro using static Franz diffusion cells under infinite dose condition and under occlusion of the apparatus. RESULTS Mg2+ and Ca2+ penetrate skin samples from TSW. Encapsulating TSW into double emulsion (TSW/O/W) increased skin absorption of both cations of interest and kept the Ca2+ /Mg2+ ratio equal to that of TSW in each skin layer. The dermal absorption of Mg2+ from the double emulsion departs from both single emulsions. Application of liposome suspension improved the skin absorption of Ca2+ while keeping constant that of Mg2+ , leading to unbalanced Ca2+ /Mg2+ ratio inside skin. CONCLUSION The beneficial effects of TSW are not only due to their action on the skin surface. Their active components, especially Ca2+ and Mg2+ cations, reach viable skin layers in a formulation-dependent manner. The distribution of ions inside skin depends on the type of formulation.
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Affiliation(s)
- M Tarnowska
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire d'Automatique, de Génie des Procédés et de Génie Pharmaceutique (LAGEPP, UMR 5007), Bat CPE 308G, 43 Bd du 11 Novembre 1918, Villeurbanne, 69622, France
| | - S Briançon
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire d'Automatique, de Génie des Procédés et de Génie Pharmaceutique (LAGEPP, UMR 5007), Bat CPE 308G, 43 Bd du 11 Novembre 1918, Villeurbanne, 69622, France
| | - J Resende de Azevedo
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire d'Automatique, de Génie des Procédés et de Génie Pharmaceutique (LAGEPP, UMR 5007), Bat CPE 308G, 43 Bd du 11 Novembre 1918, Villeurbanne, 69622, France
| | - Y Chevalier
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire d'Automatique, de Génie des Procédés et de Génie Pharmaceutique (LAGEPP, UMR 5007), Bat CPE 308G, 43 Bd du 11 Novembre 1918, Villeurbanne, 69622, France
| | - D Arquier
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire d'Automatique, de Génie des Procédés et de Génie Pharmaceutique (LAGEPP, UMR 5007), Bat CPE 308G, 43 Bd du 11 Novembre 1918, Villeurbanne, 69622, France
| | - C Barratier
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire d'Automatique, de Génie des Procédés et de Génie Pharmaceutique (LAGEPP, UMR 5007), Bat CPE 308G, 43 Bd du 11 Novembre 1918, Villeurbanne, 69622, France
| | - M-A Bolzinger
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire d'Automatique, de Génie des Procédés et de Génie Pharmaceutique (LAGEPP, UMR 5007), Bat CPE 308G, 43 Bd du 11 Novembre 1918, Villeurbanne, 69622, France
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28
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Kearney MC, McKenna PE, Quinn HL, Courtenay AJ, Larrañeta E, Donnelly RF. Design and Development of Liquid Drug Reservoirs for Microneedle Delivery of Poorly Soluble Drug Molecules. Pharmaceutics 2019; 11:E605. [PMID: 31766145 DOI: 10.3390/pharmaceutics11110605] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/01/2019] [Accepted: 11/07/2019] [Indexed: 01/31/2023] Open
Abstract
The poor aqueous solubility of existing and emerging drugs is a major issue faced by the pharmaceutical industry. Water-miscible organic solvents, termed co-solvents, can be used to enhance the solubility of poorly soluble substances. Typically, drugs with poor aqueous solubility and Log P > 3 are not amenable to delivery across the skin. This study investigated the use of co-solvents as reservoirs to be used in combination with hydrogel-forming microneedles to enhance the transdermal delivery of hydrophobic compounds, namely Nile red, olanzapine and atorvastatin. A custom-made Franz cell apparatus was fabricated to test the suitability of a liquid drug reservoir in combination with polymeric microneedles. A co-solvency approach to reservoir formulation proved effective, with 83.30% ± 9.38% of Nile red dye, dissolved in 1 mL poly(ethylene glycol) (PEG 400), permeating neonatal porcine skin over 24 h. PEG 400 and propylene glycol were found to be suitable reservoir media for olanzapine and atorvastatin, with approximately 50% of each drug delivered after 24 h. This work provides crucial proof-of-concept evidence that the manipulation of microneedle reservoir properties is an effective method to facilitate microneedle-mediated delivery of hydrophobic compounds.
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Sguizzato M, Valacchi G, Pecorelli A, Boldrini P, Simelière F, Huang N, Cortesi R, Esposito E. Gallic acid loaded poloxamer gel as new adjuvant strategy for melanoma: A preliminary study. Colloids Surf B Biointerfaces 2019; 185:110613. [PMID: 31715454 DOI: 10.1016/j.colsurfb.2019.110613] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/08/2019] [Accepted: 10/25/2019] [Indexed: 12/17/2022]
Abstract
The present study describes the production and characterization of poloxamer gels containing the antioxidant molecule gallic acid. The gels were particularly designed in order to obtain a formulation suitable for administration on the skin to treat melanoma. The polymer concentration was selected after rheological characterization and determination of gel transition temperature. In order to study the gallic acid diffusion, in vitro experiments were performed using Franz cells associated to different membranes. As first approach the gallic acid diffusion was evaluated through synthetic membranes, such as cellulose, nylon, polycarbonate, polytetrafluoroethylene, polyvinylidene fluoride and the commercial Strat-M® membrane. The membranes were employed separately or in association and compared to stratum corneum epidermis membranes, in order to find a system able to reproduce the gallic acid diffusion through the skin. Selected membranes were used for studying gallic acid diffusion from poloxamer gel. It was found that the diffusion of gallic acid was dramatically influenced by the type of membrane, both in the case of the aqueous solution or poloxamer gel. Scratch wound healing and migration assays conducted on human keratinocytes and melanoma cells demonstrated the ability of gallic acid loaded gel to inhibit cellular migration, suggesting its potential as adjuvant strategy for melanoma.
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Affiliation(s)
- Maddalena Sguizzato
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, I-44121, Ferrara, Italy
| | - Giuseppe Valacchi
- NC State University, Plants for Human Health Institute, Animal Science Dept. NC Research Campus, Kannapolis, NC 28081, USA; Department of Biomedical and Specialist Surgical Sciences, University of Ferrara, I-44121, Ferrara, Italy; Department of Food and Nutrition, Kyung Hee University, Seoul, South Korea
| | - Alessandra Pecorelli
- NC State University, Plants for Human Health Institute, Animal Science Dept. NC Research Campus, Kannapolis, NC 28081, USA
| | - Paola Boldrini
- Electron Microscopy Center, University of Ferrara, I-44121, Ferrara, Italy
| | - Fanny Simelière
- Institut Galien Paris-Sud, CNRS UMR 8612, Univ Paris-Sud, Université Paris-Saclay, Faculté de Pharmacie, 92296, Châtenay-Malabry, France
| | - Nicolas Huang
- Institut Galien Paris-Sud, CNRS UMR 8612, Univ Paris-Sud, Université Paris-Saclay, Faculté de Pharmacie, 92296, Châtenay-Malabry, France
| | - Rita Cortesi
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, I-44121, Ferrara, Italy.
| | - Elisabetta Esposito
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, I-44121, Ferrara, Italy.
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Oh L, Yi S, Zhang D, Shin SH, Bashaw E. In Vitro Skin Permeation Methodology for Over-The-Counter Topical Dermatologic Products. Ther Innov Regul Sci 2019:2168479019875338. [PMID: 31581817 DOI: 10.1177/2168479019875338] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
For topically applied over-the-counter (OTC) products, the association of unwanted systemic exposure and adverse events may be difficult to ascertain without a recognition or determination of in vivo absorption. Evaluation of skin permeability using a validated in vitro permeation methodology can provide important information for both initial formulation selection and reformulation during the product life cycle. Additionally, a comparison of permeation rates between formulations using a validated methodology could reduce the number of nonclinical studies needed as part of reformulation. However, many in vitro permeation tests (IVPTs) have produced results with high variability and low reproducibility between study sites. It is unclear if this is due to a lack of a standardized protocol, or lack of control of multiple key experimental factors including skin source, preparation, receptor fluid, and study design. This review presents the authors perspective on the potential regulatory utility of IVPT and proposes steps to improve the accuracy and reproducibility of IVPT. The focus of this review is on topical dermatologic drugs with an initial emphasis on the OTC marketplace where reformulations are more common.
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Affiliation(s)
- Luke Oh
- US Food and Drug Administration, Center for Drug Evaluation and Research, Office of Clinical Pharmacology, Silver Spring, MD, USA
| | - Sojeong Yi
- US Food and Drug Administration, Center for Drug Evaluation and Research, Office of Clinical Pharmacology, Silver Spring, MD, USA
| | - Da Zhang
- US Food and Drug Administration, Center for Drug Evaluation and Research, Office of Clinical Pharmacology, Silver Spring, MD, USA
| | - Soo Hyeon Shin
- US Food and Drug Administration, Center for Drug Evaluation and Research, Office of Clinical Pharmacology, Silver Spring, MD, USA
| | - Edward Bashaw
- US Food and Drug Administration, Center for Drug Evaluation and Research, Office of Clinical Pharmacology, Silver Spring, MD, USA
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Tarnowska M, Briançon S, de Azevedo JR, Chevalier Y, Barratier C, Pourcher T, Bolzinger MA. Formulation of survival acceptor medium able to maintain the viability of skin explants over in vitro dermal experiments. Int J Cosmet Sci 2019; 41:617-623. [PMID: 31545516 DOI: 10.1111/ics.12581] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 09/17/2019] [Indexed: 12/31/2022]
Abstract
OBJECTIVE In vitro assessments of skin absorption of xenobiotics are essential for toxicological evaluations and bioavailability studies of cosmetic and pharmaceutical ingredients. Since skin metabolism can greatly contribute to xenobiotic absorption, experiments need to be performed with skin explants kept viable in suitable survival media. Existing protocols for non-viable skin are modified to consider those conditions. The objective was to design a survival medium used as an acceptor fluid in Franz cells for testing cutaneous penetration of hydrophilic or lipophilic molecules. Their metabolism inside skin may be investigated under the same conditions. The determining factors involved in survival mechanisms in vitro are discussed. The consequences of short-term skin preservation at 4°C were also evaluated. METHODS The metabolic activity of fresh skin samples mounted in Franz cells was studied by measurement of lactate release over 24 h in order to assess the impacts of pH, buffering, osmolality, ionic strength, initial glucose supply and the addition of ethanol or non-ionic surfactant in the acceptor part of Franz cells. CONCLUSION Survival media must maintain physiological pH (>5.5) be isotonic with skin cells (300 mOsm kg-1 ) and contain at least 0.5 g L-1 glucose. Several compositions able to preserve skin metabolism are reported. Storage of skin explants overnight at 4°C impairs skin metabolic activity. The present work provides guidelines for designing survival media according to constraints related to the scientific requirements of the experiments.
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Affiliation(s)
- M Tarnowska
- Laboratoire de Dermopharmacie et Cosmétologie, Faculté de Pharmacie de Lyon, Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 bd 11 Novembre 1918, 69622, Villeurbanne, France
| | - S Briançon
- Laboratoire de Dermopharmacie et Cosmétologie, Faculté de Pharmacie de Lyon, Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 bd 11 Novembre 1918, 69622, Villeurbanne, France
| | - J Resende de Azevedo
- Laboratoire de Dermopharmacie et Cosmétologie, Faculté de Pharmacie de Lyon, Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 bd 11 Novembre 1918, 69622, Villeurbanne, France
| | - Y Chevalier
- Laboratoire de Dermopharmacie et Cosmétologie, Faculté de Pharmacie de Lyon, Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 bd 11 Novembre 1918, 69622, Villeurbanne, France
| | - C Barratier
- Laboratoire de Dermopharmacie et Cosmétologie, Faculté de Pharmacie de Lyon, Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 bd 11 Novembre 1918, 69622, Villeurbanne, France
| | - T Pourcher
- Institut de Biosciences et Biotechnologies d'Aix-Marseille (BIAM), Commissariat à l'Énergie Atomique, Faculté de Médecine, Laboratory Transporter in Imaging and Radiotherapy in Oncology (TIRO), Université Côte d'Azur, 28 avenue de Valombrose, Nice, France
| | - M-A Bolzinger
- Laboratoire de Dermopharmacie et Cosmétologie, Faculté de Pharmacie de Lyon, Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 bd 11 Novembre 1918, 69622, Villeurbanne, France
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Fratter A, Biagi D, Cicero AFG. Sublingual Delivery of Astaxanthin through a Novel Ascorbyl Palmitate-Based Nanoemulsion: Preliminary Data. Mar Drugs 2019; 17:md17090508. [PMID: 31470537 PMCID: PMC6780925 DOI: 10.3390/md17090508] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 08/21/2019] [Accepted: 08/23/2019] [Indexed: 12/15/2022] Open
Abstract
Astaxanthin is a carotenoid extracted from several seaweeds with ascertained therapeutic activity. With specific reference, astaxanthin is widely used in clinical practice to improve ocular tissue health and skin protection from UV ray damages. Despite its well-documented pleiotropic actions and demonstrated clinical efficacy, its bioavailability in humans is low and limited because of its hydrophobicity and poor dissolution in enteric fluids. Furthermore, astaxanthin is very unstable molecule and very sensitive to light exposure and thermal stress. Taken together, these pharmacological and chemical–physical features strongly limit pharmaceutical and nutraceutical development of astaxanthin-based products and as a consequence its full clinical usage. This work describes the preliminary in vitro investigation of sublingual absorption of astaxanthin through a novel ascorbyl palmitate (ASP) based nanoemulsion.
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Affiliation(s)
- Andrea Fratter
- Research and Innovation Technology, Nutraceutical Department, Labomar Research, 31036 Istrana, Italy
| | - Damiano Biagi
- Research and Innovation Technology, Nutraceutical Department, Labomar Research, 31036 Istrana, Italy
| | - Arrigo F G Cicero
- Medical and Surgical Sciences Department, University of Bologna, 40138 Bologna, Italy.
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Santimetaneedol A, Wang Z, Arteaga DN, Aksit A, Prevoteau C, Yu M, Chiang H, Fafalis D, Lalwani AK, Kysar JW. Small molecule delivery across a perforated artificial membrane by thermoreversible hydrogel poloxamer 407. Colloids Surf B Biointerfaces 2019; 182:110300. [PMID: 31326623 DOI: 10.1016/j.colsurfb.2019.06.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 06/14/2019] [Accepted: 06/14/2019] [Indexed: 12/11/2022]
Abstract
Microperforations in the round window membrane have been suggested for enhancing the rate and reliability of drug delivery into the cochlea. Intratympanic injection, the most common delivery method, involves injecting therapy into the middle ear to establish a reservoir from which drug diffuses across the round window membrane into the cochlea. This process is highly variable because (i) the reservoir, if liquid, can lose contact with the membrane and (ii) diffusion across the membrane is intrinsically variable even with a stable reservoir. To address these respective sources of variability, we compared the thermoreversible hydrogel poloxamer 407 (P407) to saline as a drug carrier and studied the effect of membrane microperforations on drug diffusion rate. We used Rhodamine B as a drug proxy to measure permeance across an artificial membrane in a horizontal diffusion cell. We found that permeance of Rhodamine B from a saline reservoir was an order of magnitude higher than that from a P407 reservoir across unperforated membranes. Moreover, permeance increased with total perforation cross-sectional area regardless of number of perforations (p < 0.05 for all saline-based experiments), but the same association was not found with P407. Rather, for a P407 reservoir, only a large perforation increased permeance (p < 0.001), while multiple small perforations did not (p = 0.749). These results confirm that for drug dissolved in saline, multiple small perforations can effectively enhance diffusion. However, for drug dissolved in P407, larger perforations are necessary.
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Affiliation(s)
- A Santimetaneedol
- Department of Mechanical Engineering, Columbia University, New York, NY, United States
| | - Z Wang
- Department of Mechanical Engineering, Columbia University, New York, NY, United States
| | - D N Arteaga
- Department of Otolaryngology - Head & Neck Surgery, Columbia University Medical Center, New York, NY, United States
| | - A Aksit
- Department of Mechanical Engineering, Columbia University, New York, NY, United States
| | - C Prevoteau
- Department of Otolaryngology - Head & Neck Surgery, Columbia University Medical Center, New York, NY, United States
| | - M Yu
- Department of Otolaryngology - Head & Neck Surgery, Columbia University Medical Center, New York, NY, United States
| | - H Chiang
- Department of Otolaryngology - Head & Neck Surgery, Columbia University Medical Center, New York, NY, United States
| | - D Fafalis
- Department of Mechanical Engineering, Columbia University, New York, NY, United States
| | - A K Lalwani
- Department of Mechanical Engineering, Columbia University, New York, NY, United States; Department of Otolaryngology - Head & Neck Surgery, Columbia University Medical Center, New York, NY, United States.
| | - J W Kysar
- Department of Mechanical Engineering, Columbia University, New York, NY, United States; Department of Otolaryngology - Head & Neck Surgery, Columbia University Medical Center, New York, NY, United States
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Alonso C, Carrer V, Espinosa S, Zanuy M, Córdoba M, Vidal B, Domínguez M, Godessart N, Coderch L, Pont M. Prediction of the skin permeability of topical drugs using in silico and in vitro models. Eur J Pharm Sci 2019; 136:104945. [PMID: 31163216 DOI: 10.1016/j.ejps.2019.05.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 05/17/2019] [Accepted: 05/31/2019] [Indexed: 12/19/2022]
Abstract
The main challenge of topically applied drugs is to overcome the skin barrier to reach the site of action at the concentration needed for efficacy. In the research of new topical drugs, design of molecules with optimized properties for skin penetration is a key factor and assays for its characterization are needed. A group of 20 representative topical molecules of clinical use were studied in two in silico models (Potts & Guy and Barratt), and an in vitro assay with artificial membrane (Skin-PAMPA). A subset of 9 drugs were also evaluated in the Franz cells assay, formulated in a solvent and in a marketed formulation. Each assay allowed us to grade compounds according to their permeability value. Globally good alignments were found for the studied compounds when comparing models, although discrepancies for some compounds such as tazarotene, tacrolimus, ketoconazole and metronidazole were observed. Overall, the studied in silico and the in vitro models are useful tools to support selection and characterization of research compounds in terms of skin permeability.
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Affiliation(s)
- Cristina Alonso
- Institute of Advanced Chemistry of Catalonia -Spanish National Research Council (IQAC-CSIC) 18-26 Jordi Girona st 08034 Barcelona, Spain.
| | - Víctor Carrer
- Institute of Advanced Chemistry of Catalonia -Spanish National Research Council (IQAC-CSIC) 18-26 Jordi Girona st 08034 Barcelona, Spain.
| | - Sonia Espinosa
- Almirall R&D Center, Ctra. Laureà Miró, 408-410, 08980 Sant Feliu de Llobregat, Barcelona, Spain.
| | - Miriam Zanuy
- Almirall R&D Center, Ctra. Laureà Miró, 408-410, 08980 Sant Feliu de Llobregat, Barcelona, Spain.
| | - Mònica Córdoba
- Almirall R&D Center, Ctra. Laureà Miró, 408-410, 08980 Sant Feliu de Llobregat, Barcelona, Spain.
| | - Bernat Vidal
- Almirall R&D Center, Ctra. Laureà Miró, 408-410, 08980 Sant Feliu de Llobregat, Barcelona, Spain.
| | - María Domínguez
- Almirall R&D Center, Ctra. Laureà Miró, 408-410, 08980 Sant Feliu de Llobregat, Barcelona, Spain
| | - Núria Godessart
- Almirall R&D Center, Ctra. Laureà Miró, 408-410, 08980 Sant Feliu de Llobregat, Barcelona, Spain.
| | - Luisa Coderch
- Institute of Advanced Chemistry of Catalonia -Spanish National Research Council (IQAC-CSIC) 18-26 Jordi Girona st 08034 Barcelona, Spain.
| | - Mercè Pont
- Almirall R&D Center, Ctra. Laureà Miró, 408-410, 08980 Sant Feliu de Llobregat, Barcelona, Spain.
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Turner R, Wevrett SR, Edmunds S, Brown M, Atkinson R, Shea T. Validation of an analytical method to quantify the permeation and penetration of flurbiprofen into human pharynx tissue. Biomed Chromatogr 2019; 33:e4499. [PMID: 30667527 PMCID: PMC6618079 DOI: 10.1002/bmc.4499] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 11/14/2018] [Accepted: 01/17/2019] [Indexed: 01/20/2023]
Abstract
The aim of this investigation was to develop receiver and extraction fluids, and subsequently validate an analytical method to quantify the permeation and penetration of flurbiprofen into human pharynx tissue using a Franz diffusion cell. The solubility and stability of flurbiprofen in a suitable receiver fluid, and a suitable extraction method and fluid to recover and quantitate flurbiprofen from human pharynx tissue, were investigated using high‐performance liquid chromatography (HPLC). The potential interference of human pharynx tissue in the receiver fluid was also investigated. The HPLC analytical method was successfully validated according to current guidelines. The final receiver fluid demonstrated sufficient solubility and stability, and the extraction method and fluid resulted in >95% recovery of flurbiprofen following exposure to human pharynx tissue. The lower limit of quantitation of flurbiprofen was 0.045 μg/mL in both the receiver and extraction fluids. There was no interference of the human pharynx tissue with the HPLC method. This investigation validated an analytical method for quantitating flurbiprofen, and determined a suitable receiver fluid and extraction method and fluid, which can be used to investigate the permeation and penetration of flurbiprofen through human pharynx tissue using the Franz diffusion cell method.
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Affiliation(s)
- Rob Turner
- MedPharm Ltd, Surrey Research Park, Guildford, UK
| | | | | | - Marc Brown
- MedPharm Ltd, Surrey Research Park, Guildford, UK.,The Research Centre in Topical Drug Delivery and Toxicology, University of Hertfordshire, College Lane Campus, Herts, UK
| | | | - Tim Shea
- Medical Science, Reckitt Benckiser, New Jersey, USA
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Adrover A, Varani G, Paolicelli P, Petralito S, Di Muzio L, Casadei MA, Tho I. Experimental and Modeling Study of Drug Release from HPMC-Based Erodible Oral Thin Films. Pharmaceutics 2018; 10:pharmaceutics10040222. [PMID: 30423941 PMCID: PMC6320981 DOI: 10.3390/pharmaceutics10040222] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 10/31/2018] [Accepted: 11/05/2018] [Indexed: 12/13/2022] Open
Abstract
In this work hydroxypropyl methylcellulose (HPMC) fast-dissolving thin films for oral administration are investigated. Furosemide (Class IV of the Biopharmaceutical Classification System) has been used as a model drug for in vitro release tests using three different set-ups: the Franz cell, the millifluidic flow-through device, and the paddle type dissolution apparatus (USP II). In order to enable drug incorporation within HPMC films, a multifunctional excipient, hydroxypropyl-β-cyclodextrin (HP-β-CD) has been included in the formulation, and the influence of HP-β-CD on film swelling, erosion, and release properties has been investigated. Mathematical models capable of describing the swelling and release processes from HPMC erodible thin films in different apparatuses have been developed. In particular, we propose a new model for the description of drug transport and release in a Franz cell that accounts for the effect of the unavoidable imperfect mixing of the receptor chamber.
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Affiliation(s)
- Alessandra Adrover
- Dipartimento di Ingegneria Chimica, Materiali e Ambiente, Sapienza Universitá di Roma, Via Eudossiana 18, 00184 Rome, Italy.
| | - Gabriele Varani
- Dipartimento di Ingegneria Chimica, Materiali e Ambiente, Sapienza Universitá di Roma, Via Eudossiana 18, 00184 Rome, Italy.
| | - Patrizia Paolicelli
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Universitá di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Stefania Petralito
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Universitá di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Laura Di Muzio
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Universitá di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Maria Antonietta Casadei
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Universitá di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy.
| | - Ingunn Tho
- Section of Pharmaceutics and Social Pharmacy, Department of Pharmacy, Faculty of Mathematics and Natural Sciences, University of Oslo, 0316 Oslo, Norway.
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Iadaresta F, Manniello MD, Östman C, Crescenzi C, Holmbäck J, Russo P. Chemicals from textiles to skin: an in vitro permeation study of benzothiazole. Environ Sci Pollut Res Int 2018; 25:24629-24638. [PMID: 29911295 PMCID: PMC6133113 DOI: 10.1007/s11356-018-2448-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 05/29/2018] [Indexed: 05/21/2023]
Abstract
Despite the possible impact on human health, few studies have been conducted to assess the penetration and accumulation of contaminants in the skin after a prolonged contact with textile materials. In previous studies, we have shown that benzothiazole and its derivatives, as well as other potentially hazardous chemicals, often are present as textile contaminants in clothes available on the retail market. Since benzothiazole is a common contaminant in clothes, these can be a possible route for human chemical exposure, both systemic and onto the skin. To investigate this potential exposure, Franz-type and flow-through cells were used for the permeation studies together with a Strat-M® artificial membranes. Experiments were performed using solutions of benzothiazole, as well as contaminated textile samples in the donor chamber. Benzothiazole was demonstrated to penetrate through, as well as being accumulated in the membrane mimicking the skin. After 24 h, up to 62% of benzothiazole was found in the acceptor cell, while up to 37% was found absorbed in the skin mimicking membrane. It also was shown that there was release and permeation from contaminated fabrics. The results indicate that benzothiazole can be released from textile materials, penetrate through the skin, and further enter the human body. This will possibly also apply to other chemical contaminants in textiles, and the results of this study indicate that the presence of these textile contaminants entails potential health risks. A rough risk assessment was made for clothing textiles according to Environmental Protection Agency (EPA) and European regulations for carcinogenic and non-carcinogenic compounds, using literature data for benzothiazole.
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Affiliation(s)
- Francesco Iadaresta
- Department of Environmental Sciences and Analytical Chemistry (ACES), Stockholm University, Arrhenius Laboratory, Stockholm University, SE-10691, Stockholm, Sweden
| | - Michele Dario Manniello
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084, Fisciano, SA, Italy
| | - Conny Östman
- Department of Environmental Sciences and Analytical Chemistry (ACES), Stockholm University, Arrhenius Laboratory, Stockholm University, SE-10691, Stockholm, Sweden.
| | - Carlo Crescenzi
- Department of Environmental Sciences and Analytical Chemistry (ACES), Stockholm University, Arrhenius Laboratory, Stockholm University, SE-10691, Stockholm, Sweden
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084, Fisciano, SA, Italy
| | - Jan Holmbäck
- Department of Environmental Sciences and Analytical Chemistry (ACES), Stockholm University, Arrhenius Laboratory, Stockholm University, SE-10691, Stockholm, Sweden.
| | - Paola Russo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, I-84084, Fisciano, SA, Italy
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Bîrsan M, Apostu M, Todoran N, Antonoaea P, Rusu A, Ciurba A. Development of Dermal Films Containing Miconazole Nitrate. Molecules 2018; 23:E1640. [PMID: 29976876 PMCID: PMC6100062 DOI: 10.3390/molecules23071640] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/02/2018] [Accepted: 07/04/2018] [Indexed: 11/16/2022] Open
Abstract
This study aims to develop new antifungal dermal films based on their mechanical properties (elongation, adhesion, behaviour towards vapour moisture) and the in vitro availability of miconazole nitrate, used as a pharmaceutical active ingredient in various concentrations. The three polymeric films prepared were translucent or shiny, with the surface of 63.585 cm², 0.20⁻0.30 mm thickness, and content of miconazole nitrate of 3.931 or 15.726 mg·cm². The mechanical resistance and elongation tests demonstrated that the two films based on hydroxyethyl cellulose (HEC) polymer were more elastic than the one prepared with hydroxypropyl methylcellulose (HPMC). The vapour water absorption and vapour water loss capacity of the films revealed that the HPMC film did not dry very well in the process of preparation by the evaporation of the solvent technique, unlike the HEC films that jellified more evenly in water and had higher drying capacity at 40 °C. The in vitro availability of miconazole nitrate from dermal films was evaluated using the Franz diffusion cell method, through a synthetic membrane (Ø 25 mm × 0.45 µm) and acceptor media with pH 7.4 (phosphate buffer and sodium lauryl sulphate 0.045%), resulting a release rate of up to 70%.
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Affiliation(s)
- Magdalena Bîrsan
- Faculty of Pharmacy, "Grigore T. Popa", University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Mihai Apostu
- Faculty of Pharmacy, "Grigore T. Popa", University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Nicoleta Todoran
- Faculty of Pharmacy, University of Medicine and Pharmacy of Tîrgu Mureș, Târgu Mureş 540001, Romania.
| | - Paula Antonoaea
- Faculty of Pharmacy, University of Medicine and Pharmacy of Tîrgu Mureș, Târgu Mureş 540001, Romania.
| | - Aura Rusu
- Faculty of Pharmacy, University of Medicine and Pharmacy of Tîrgu Mureș, Târgu Mureş 540001, Romania.
| | - Adriana Ciurba
- Faculty of Pharmacy, University of Medicine and Pharmacy of Tîrgu Mureș, Târgu Mureş 540001, Romania.
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Carrer V, Guzmán B, Martí M, Alonso C, Coderch L. Lanolin-Based Synthetic Membranes as Percutaneous Absorption Models for Transdermal Drug Delivery. Pharmaceutics 2018; 10:pharmaceutics10030073. [PMID: 29933575 PMCID: PMC6161196 DOI: 10.3390/pharmaceutics10030073] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/04/2018] [Accepted: 06/13/2018] [Indexed: 11/27/2022] Open
Abstract
Background: The major in vitro permeation studies are currently performed in Franz-type diffusion cells because of their simplicity, cost effectiveness and because the experimental conditions can be easily controlled. Apart from the skin, Franz-type diffusion cells can be used with synthetic membranes. Nevertheless, they do not emulate the nature of the lipidic matrix, which is responsible for the topical barrier function. Objective: This paper offers two new approaches combining different synthetic membranes (Strat-M® and Nucleopore®) with lanolin, which provides lipidic components similar to the lipidic matrix. Methods: The molecular structure of lanolin was studied in membranes by attenuated total reflectance infrared spectroscopy (ATR-IR). The water permeability and absorption of lidocaine, diclofenac sodium and betamethasone dipropionate were also studied and compared against free-lanolin membranes and skin. Results: The results showed an increasing barrier function after lanolin application in both membranes, resulting in a decrease in water permeability. Observing the IR spectra, the lateral packaging of the lipid in the synthetic membranes seems to emulate the orthorhombic disposition from the stratum corneum. Moreover, the three substances applied to the lanolin-containing membranes have a similar absorption to that of the skin. Conclusions: In conclusion, combining synthetic membranes with lanolin may be a useful approach to mimic topical actives’ absorption.
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Affiliation(s)
- Victor Carrer
- Department of Chemical and Surfactants Technology, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), 08304 Barcelona, Spain.
| | - Beatriz Guzmán
- Department of Chemical and Surfactants Technology, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), 08304 Barcelona, Spain.
| | - Meritxell Martí
- Department of Chemical and Surfactants Technology, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), 08304 Barcelona, Spain.
| | - Cristina Alonso
- Department of Chemical and Surfactants Technology, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), 08304 Barcelona, Spain.
| | - Luisa Coderch
- Department of Chemical and Surfactants Technology, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), 08304 Barcelona, Spain.
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Massella D, Leone F, Peila R, Barresi AA, Ferri A. Functionalization of Cotton Fabrics with Polycaprolactone Nanoparticles for Transdermal Release of Melatonin. J Funct Biomater 2017; 9:E1. [PMID: 29295545 DOI: 10.3390/jfb9010001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 12/15/2017] [Accepted: 12/21/2017] [Indexed: 12/18/2022] Open
Abstract
Drug delivery by means of transdermal patches raised great interest as a non-invasive and sustained therapy. The present research aimed to design a patch for transdermal delivery of melatonin, which was encapsulated in polycaprolactone (PCL) nanoparticles (NPs) by employing flash nanoprecipitation (FNP) technique. Melatonin-loaded PCL nanoparticles were successfully prepared with precise control of the particle size by effectively tuning process parameters. The effect of process parameters on the particle size was assessed by dynamic light scattering for producing particles with suitable size for transdermal applications. Quantification of encapsulated melatonin was performed by mean of UV spectrophotometry, obtaining the estimation of encapsulation efficiency (EE%) and loading capacity (LC%). An EE% higher than 80% was obtained. Differential scanning calorimetry (DSC) analysis of NPs was performed to confirm effective encapsulation in the solid phase. Cotton fabrics, functionalized by imbibition with the nano-suspension, were analyzed by scanning electron microscopy to check morphology, adhesion and distribution of the NPs on the surface; melatonin transdermal release from the functionalized fabric was performed via Franz’s cells by using a synthetic membrane. NPs were uniformly distributed on cotton fibres, as confirmed by SEM observations; the release test showed a continuous and controlled release whose kinetics were satisfactorily described by Baker–Lonsdale model.
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Bartsch N, Heidler J, Vieth B, Hutzler C, Luch A. Skin permeation of polycyclic aromatic hydrocarbons: A solvent-based in vitro approach to assess dermal exposures against benzo[a]pyrene and dibenzopyrenes. J Occup Environ Hyg 2016; 13:969-979. [PMID: 27380454 DOI: 10.1080/15459624.2016.1200724] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Consumer products with high contents of polycyclic aromatic hydrocarbons (PAHs) were repeatedly identified by market surveillance authorities. Since several of the individual compounds have been identified as genotoxic carcinogens, there might be health risks associated with the usage of these items. It therefore becomes reasonable to argue to reduce PAH contents in consumer products to a level as low as possible. This study presents data on the migration of PAHs from consumer products into aqueous sweat simulant or aqueous ethanol and on its combined migration and penetration into human skin. Product specimens were either submerged in simulant, or placed directly on test skins in Franz cell chambers to simulate dermal contacts. Migration of hexacyclic dibenzopyrenes became detectable by using ethanolic simulant, but not in aqueous sweat simulant. Similarly, migration of the pentacyclic model carcinogen benzo[a]pyrene (B[a]P) into aqueous sweat simulant was significantly lower when compared with human skin or skin models. The results point to a gross underestimation (about two orders of magnitude) when using aqueous sweat simulant instead of human skin for assessing PAH migration. On the other side, the usage of 20% ethanol as simulant revealed good agreement to the actual exposure of human skin against B[a]P migrating out of contaminated products. Our results underline that aqueous sweat simulant is not suitable to study dermal migration of highly lipophilic compounds.
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Affiliation(s)
- N Bartsch
- a German Federal Institute for Risk Assessment (BfR) , Department of Chemical and Product Safety , Berlin , Germany
| | - J Heidler
- a German Federal Institute for Risk Assessment (BfR) , Department of Chemical and Product Safety , Berlin , Germany
| | - B Vieth
- a German Federal Institute for Risk Assessment (BfR) , Department of Chemical and Product Safety , Berlin , Germany
| | - C Hutzler
- a German Federal Institute for Risk Assessment (BfR) , Department of Chemical and Product Safety , Berlin , Germany
| | - A Luch
- a German Federal Institute for Risk Assessment (BfR) , Department of Chemical and Product Safety , Berlin , Germany
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Jung EY, Hong KB, Son HS, Suh HJ, Park Y. Effect of Layer-by-Layer (LbL) Encapsulation of Nano-Emulsified Fish Oil on Their Digestibility Ex Vivo and Skin Permeability In Vitro. Prev Nutr Food Sci 2016; 21:85-9. [PMID: 27390723 PMCID: PMC4935246 DOI: 10.3746/pnf.2016.21.2.85] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 04/11/2016] [Indexed: 11/06/2022] Open
Abstract
Omega-3 rich fish oils are extremely labile, thus requiring control of oxidation and off flavor development. A recently proposed emulsification method, layer-by-layer (LbL) deposition, was found to be a plausible method to enhance the characteristics of bioactive ingredients, especially lipids. The present work was designed to test the possibility of enhancing the uptake and utilization of omega-3 fatty acids present in fish oil. The bioavailability of nano-emulsified fish oil was monitored in terms of intestinal absorption as well as skin permeability by using the everted intestinal sac model and Franz cell model. The skin permeability and intestinal absorption characteristics was significantly improved by LbL emulsification with lecithin/chitosan/low methoxypectin. Multilayer encapsulation along with nano-emulsification can be a useful method to deliver biologically active lipids and related components, such as fish oil. The protective effect of this tool from lipid oxidation still needs to be verified.
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Affiliation(s)
- Eun Young Jung
- Department of Home Economic Education, Jeonju University, Jeonbuk 55069, Korea
| | - Ki Bae Hong
- Department of Public Health Sciences, Graduate School, Korea University, Seoul 02841, Korea
| | - Heung Soo Son
- Department of Food Science and Biotechnology, Shin Ansan University, Gyeonggi 15435, Korea
| | - Hyung Joo Suh
- Department of Public Health Sciences, Graduate School, Korea University, Seoul 02841, Korea
| | - Yooheon Park
- Dongguk University Research Institute of Biotechnology & Medical Converged Science, Dongguk University, Gyeonggi 10325, Korea
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Campani V, Biondi M, Mayol L, Cilurzo F, Pitaro M, De Rosa G. Development of nanoemulsions for topical delivery of vitamin K1. Int J Pharm 2016; 511:170-177. [PMID: 27386792 DOI: 10.1016/j.ijpharm.2016.07.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 07/01/2016] [Accepted: 07/02/2016] [Indexed: 12/15/2022]
Abstract
Vitamin K1 (VK1) is a natural and lipophilic compound currently used in dermatological formulations. In this work, nanoemulsions containing VK1 have been proposed to overcome some issues associated to semisolid VK1-incorporating formulations. The study has been focused on the design of a lipid-free aqueous formulation, easy to prepare and with low cost of production. Thus, a simply protocol, using a low-energy method, has been used to spontaneously form the nanoemulsions. The nanoemulsion composition has been optimized to improve its physical stability during storage in different conditions. Then, the possibility to administer VK1-containing nanoemulsions by nebulization without significant alteration of the formulation was tested. Moreover, the VK1 accumulation into the skin layers have been evaluated through permeation experiments on Franz cells, ATR-FITR analysis, confocal laser scanning microscopy (CLSM) observations, and high performance liquid chromatography (HPLC) analysis. The study demonstrated that NEs represent an interesting option for the commercial development of an aqueous spray formulation for the topical delivery of VK1.
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Affiliation(s)
- Virginia Campani
- Department of Pharmacy, Università degli Studi di Napoli Federico II, Naples 80131, Italy.
| | - Marco Biondi
- Department of Pharmacy, Università degli Studi di Napoli Federico II, Naples 80131, Italy.
| | - Laura Mayol
- Department of Pharmacy, Università degli Studi di Napoli Federico II, Naples 80131, Italy.
| | - Francesco Cilurzo
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, Milan 20133, Italy.
| | | | - Giuseppe De Rosa
- Department of Pharmacy, Università degli Studi di Napoli Federico II, Naples 80131, Italy.
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Burger C, Gerber M, du Preez JL, du Plessis J. Optimised transdermal delivery of pravastatin. Int J Pharm 2015; 496:518-25. [PMID: 26505148 DOI: 10.1016/j.ijpharm.2015.10.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 10/07/2015] [Accepted: 10/09/2015] [Indexed: 11/30/2022]
Abstract
Wiechers' programme "Formulating for Efficacy" initiated a new strategy to optimise the oil phase of topical formulations in order to achieve optimal transdermal drug delivery. This new approach uses the "Delivery Gap Theory" on any active pharmaceutical ingredients (APIs) to test if it could enhance transdermal drug delivery. The aim of the study was to formulate six different semi-solid formulations (three creams and three emulgels) with 2% pravastatin as the API in order to investigate the "Delivery Gap Principle", by determining which formulation would deliver pravastatin best to the target-site (system circulation). The three cream- and three emulgel formulations had different polarities, i.e. a formulation with polarity equal to that of the stratum corneum (optimised), a non-polar (lipophilic)- and a polar (hydrophilic)-formulation. Franz cell diffusion studies were executed over 12h and the optimised emulgel (2.578μg/cm(2)) had the highest median amount per area obtained. Tape stripping followed the diffusion studies and in the stratum corneum-epidermis, the hydrophilic emulgel (1.448μg/ml) contained the highest median pravastatin concentration and the epidermis-dermis the optimised emulgel (0.849μg/ml) depicted the highest pravastatin concentration. During this study, it was observed that when both emulgel and cream formulations were compared; the emulgels enhanced the delivery of pravastatin more than the creams.
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Affiliation(s)
- Cornel Burger
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa
| | - Minja Gerber
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa.
| | - Jan L du Preez
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa
| | - Jeanetta du Plessis
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa
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Cascone S, Lamberti G, Titomanlio G. Designing in-vitro systems to simulate the in-vivo permeability of drugs. Transl Med UniSa 2014; 10:18-21. [PMID: 25147762 PMCID: PMC4140425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
In this work an engineering approach, consisting in an experimental procedure and a model to derive the data, was presented and applied to improve the testing methods of pharmaceuticals. The permeability of several active molecules have been evaluated across a synthetic membrane. The permeability of these drugs measured through the artificial membrane were successfully correlated to their in-vivo permeability. The relationship with in-vivo permeability was derived, and then a rule to design systems to simulate the intestinal absorption was proposed to reduce the need for expensive and ethical problematic in-vivo measurements.
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Abstract
The aim of the present work was to extend our previous in-vitro drug release studies using semisolid dermatological bases with non-impregnated cellulose acetate membranes. A comparison of the performances of two apparatuses, the more commonly used Franz cell and the new modified USP (mini paddle with ointment holding cell) systems were applied to this work. Five different semisolid as well as two marketed preparations containing 1% diclofenac sodium were used. Complex, slightly non-linear release curves indicating sink conditions were found. This was explained by the co-diffusion of excipients modifying the characteristics of the membrane and the receiving medium dynamically. Although our test model is, as a rule, not suitable to establish an in-vivo-in-vitro correlation, good qualitative as well as quantitative correlations were found within some types of dermatological bases. The correlation between the results of the two in-vitro methods also depends on the type of semisolids studied. The release curve characteristics and the amount of diclofenac sodium released at 6 h were measured. Their repeatability and reproducibility were calculated. The slopes and Q-values were correlated with in-vivo data. In general, the modified USP method provided more precise results than the Franz cell method.
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Affiliation(s)
- É Petró
- Institute of Drug Regulatory Affairs and
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Esposito E, Ravani L, Mariani P, Contado C, Drechsler M, Puglia C, Cortesi R. Curcumin containing monoolein aqueous dispersions: a preformulative study. Mater Sci Eng C Mater Biol Appl 2013; 33:4923-34. [PMID: 24094206 DOI: 10.1016/j.msec.2013.08.017] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 07/24/2013] [Accepted: 08/13/2013] [Indexed: 12/22/2022]
Abstract
The present study describes the production and characterization of monoolein aqueous dispersions (MAD) as drug delivery systems for curcumin (CR). MAD based on monoolein and different emulsifiers have been produced and characterized. Morphology and dimensional distribution have been investigated by Cryogenic Transmission Electron Microscopy (cryo-TEM), X-ray and Photon Correlation Spectroscopy (PCS). Monoolein in different mixtures with sodium cholate, sodium caseinate, bentonite and poloxamer resulted in heterogeneous dispersions constituted of unilamellar vesicles, cubosomes and sponge type phases, depending on the employed components, as found by cryo-TEM and X-ray studies. CR was encapsulated with entrapment efficiencies depending on the MAD composition, particularly the highest was reached in the case of monoolein/poloxamer/sodium cholate mixture. The same mixture was able to maintain CR stability also after 6 months. CR release modalities were in vitro investigated in order to mimic a possible subcutaneous administration of MAD. It was found that MAD constituted of monoolein/poloxamer and monoolein/poloxamer/sodium cholate mixtures were able to sustain CR release. MAD viscous vehicles were produced by xanthan gum. CR percutaneous absorption has been studied in vitro using excised human skin membranes [stratum corneum epidermis (SCE)] mounted into Franz cells. It was found that fluxes (Fn) of CR incorporated in MAD are influenced by the presence of monoolein based nanosystems. In particular xanthan gum based MAD better control CR diffusion from MAD.
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Affiliation(s)
- Elisabetta Esposito
- Department of Life Sciences and Biotechnology, University of Ferrara, I-44121 Ferrara, Italy.
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