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Fernandes E, Lopes CM, Lúcio M. Lipid Biomimetic Models as Simple Yet Complex Tools to Predict Skin Permeation and Drug-Membrane Biophysical Interactions. Pharmaceutics 2024; 16:807. [PMID: 38931927 PMCID: PMC11207520 DOI: 10.3390/pharmaceutics16060807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
The barrier function of the skin is primarily determined by its outermost layer, the Stratum Corneum (SC). The SC consists of corneocytes embedded in a lipid matrix composed mainly of ceramides, cholesterol, and free fatty acids in equimolar proportions and is organised in a complex lamellar structure with different periodicities and lateral packings. This matrix provides a diffusion pathway across the SC for bioactive compounds that are administered to the skin. In this regard, and as the skin administration route has grown in popularity, there has been an increase in the use of lipid mixtures that closely resemble the SC lipid matrix, either for a deeper biophysical understanding or for pharmaceutical and cosmetic purposes. This review focuses on a systematic analysis of the main outcomes of using lipid mixtures as SC lipid matrix models for pharmaceutical and cosmetic purposes. Thus, a methodical evaluation of the main outcomes based on the SC structure is performed, as well as the main recent developments in finding suitable new in vitro tools for permeation testing based on lipid models.
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Affiliation(s)
- Eduarda Fernandes
- CF-UM-UP—Centro de Física das Universidades do Minho e Porto, Departamento de Física, Universidade do Minho, 4710-057 Braga, Portugal
| | - Carla M. Lopes
- FFP-I3ID—Instituto de Investigação, Inovação e Desenvolvimento, FP-BHS—Biomedical and Health Sciences Research Unit, Faculdade de Ciências da Saúde, Universidade Fernando Pessoa, 4200–150 Porto, Portugal;
- UCIBIO—Applied Molecular Biosciences Unit, MedTech–Laboratory of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Marlene Lúcio
- CF-UM-UP—Centro de Física das Universidades do Minho e Porto, Departamento de Física, Universidade do Minho, 4710-057 Braga, Portugal
- CBMA—Centro de Biologia Molecular e Ambiental, Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal
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2
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Roy S, Ho JCS, Teo DLC, Gupta S, Nallani M. Biomimetic Stratum Corneum Liposome Models: Lamellar Organization and Permeability Studies. MEMBRANES 2023; 13:135. [PMID: 36837639 PMCID: PMC9962386 DOI: 10.3390/membranes13020135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/18/2023] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
The stratum corneum (SC), the outer layer of the skin, plays a crucial role as a barrier protecting the underlying cells from external stress. The SC comprises three key components: ceramide (CER), free fatty acid (FFA), and cholesterol, along with small fractions of cholesterol sulfate and cholesterol ester. In order to gain a deeper understanding about the interdependence of the two major components, CER and FFA, on the organizational, structural, and functional properties of the SC layer, a library of SC lipid liposome (SCLL) models was developed by mixing CER (phytosphingosine or sphingosine), FFA (oleic acid, palmitic acid, or stearic acid), cholesterol, and cholesterol sulfate. Self-assembly of the SC lipids into lamellar phases was first confirmed by small-angle X-ray scattering. Short periodicity and long periodicity phases were identified for SCLLs containing phytosphingosines and sphingosine CERs, respectively. Furthermore, unsaturation in the CER acyl and FFA chains reduced the lipid conformational ordering and packing density of the liposomal bilayer, which were measured by differential scanning calorimetry and Fourier transform infrared spectroscopy. The introduction of unsaturation in the CER and/or FFA chains also impacted the lamellar integrity and permeability. This extensive library of SCLL models exhibiting physiologically relevant lamellar phases with defined structural and functional properties may potentially be used as a model system for screening pharmaceuticals or cosmetic agents.
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Affiliation(s)
- Susmita Roy
- Center for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, Singapore 637553, Singapore
| | - James C. S. Ho
- Center for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, Singapore 637553, Singapore
| | - Douglas L. C. Teo
- Center for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, Singapore 637553, Singapore
| | - Shikhar Gupta
- Procter & Gamble International Operations SA SG Branch, Singapore 138547, Singapore
| | - Madhavan Nallani
- Center for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, Singapore 637553, Singapore
- ACM Biolabs Pte Ltd., Singapore 638075, Singapore
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3
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Dvořáková K, Štěpánek P, Kroupová J, Zbytovská J. N-Alkylmorpholines: Potent Dermal and Transdermal Skin Permeation Enhancers. Pharmaceutics 2021; 14:64. [PMID: 35056959 PMCID: PMC8778526 DOI: 10.3390/pharmaceutics14010064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/22/2021] [Accepted: 12/25/2021] [Indexed: 12/26/2022] Open
Abstract
Transdermal drug delivery is an attractive non-invasive method offering numerous advantages over the conventional routes of administration. The main obstacle to drug transport is, however, the powerful skin barrier that needs to be modulated, for example, by transdermal permeation enhancers. Unfortunately, there are still only a few enhancers showing optimum properties including low toxicity and reversibility of enhancing effects. For this reason, we investigated a series of new N-alkylmorpholines with various side chains as potential enhancers in an in vitro permeation study, using three model permeants (theophylline, indomethacin, diclofenac). Moreover, electrical impedance, transepidermal water loss, cellular toxicity and infrared spectroscopy measurements were applied to assess the effect of enhancers on skin integrity, reversibility, toxicity and enhancers' mode of action, respectively. Our results showed a bell-shaped relationship between the enhancing activity and the hydrocarbon chain length of the N-alkylmorpholines, with the most efficient derivatives having 10-14 carbons for both transdermal and dermal delivery. These structures were even more potent than the unsaturated oleyl derivative. The best results were obtained for indomethacin, where particularly the C10-14 derivatives showed significantly stronger effects than the traditional enhancer Azone. Further experiments revealed reversibility in the enhancing effect, acceptable toxicity and a mode of action based predominantly on interactions with stratum corneum lipids.
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Affiliation(s)
- Kristýna Dvořáková
- Department of Organic Technology, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic;
| | - Petr Štěpánek
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic;
| | - Jiřina Kroupová
- Department of Chemical Engineering, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic;
| | - Jarmila Zbytovská
- Department of Organic Technology, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic;
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4
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Ceramide liposomes for skin barrier recovery: A novel formulation based on natural skin lipids. Int J Pharm 2021; 596:120264. [DOI: 10.1016/j.ijpharm.2021.120264] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 12/22/2020] [Accepted: 01/10/2021] [Indexed: 01/10/2023]
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5
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Mueller J, Trapp M, Neubert RHH. The effect of hydrophilic penetration/diffusion enhancer on stratum corneum lipid models: Part II*: DMSO. Chem Phys Lipids 2019; 225:104816. [PMID: 31525381 DOI: 10.1016/j.chemphyslip.2019.104816] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 08/28/2019] [Accepted: 09/03/2019] [Indexed: 01/14/2023]
Abstract
To optimize dermal and transdermal administration of drugs, the barrier function of the skin, particularly the stratum corneum (SC), needs to be reduced reversibly. For this purpose, penetration/diffusion enhancers such as DMSO can be applied. However, there is the question whether DMSO is an aggressive penetration/diffusion enhancer in pharmaceutical and cosmetical relevant concentrations? Until now, it is unclear if this penetration/diffusion enhancement is caused by an interaction with the SC lipid matrix or related to effects within the corneocytes. Therefore, the effects of the hydrophilic enhancer DMSO on SC models with different dimensionality ranging from bilayers (liposomes) via oligo-layers to multilayers have been investigated in this study. The effects of DMSO should be compared to that of other relevant hydrophilic enhancers such as urea and taurine. An innovative spectrum of methods was applied to ascertain the mode of action of DMSO in relevant concentrations on a molecular scale. The experiments reveal that there is no specific interaction of 10% and 30% DMSO solutions with the SC model systems. Hence, if DMSO is applied in pharmaceutically and cosmetically relevant concentrations, it has no influence on the SC model systems used. Neither an additional water uptake in the head group region nor a decrease of the lipid chain packing density have been observed. The leakage studies on liposomes show that 10% DMSO is causing just a very slight leakage of 8%, lower than the leakage of 19.4% caused by 10% urea (Müller et al., 2016). Consequently, the interactions of DMSO with the SC model lipids used are very low in concentrations of 10% and 30%, respectively. Since the lipid composition in native SC lipid matrix is far more complex than this model mixture, the results can not be directly transferred to the native SC lipid matrix. However, the outcome of this study, together with various findings in the literature give rise to the assumption that the enhancing effect of DMSO concerning the diffusion of relevant hydrophilic drugs and actives appears to be realized via the corneocytes.
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Affiliation(s)
- J Mueller
- Department of Pharmaceutics and Biopharmaceutics, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle, Germany
| | - M Trapp
- Institute Soft Matter and Functional Materials, Helmholtz-Zentrum-Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - R H H Neubert
- Institute of Applied Dermatopharmacy, Martin Luther University Halle-Wittenberg, Weinbergweg 23, 06120, Halle, Germany.
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6
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Čuříková-Kindlová BA, Diat O, Štěpánek F, Vávrová K, Zbytovská J. Probing the interactions among sphingosine and phytosphingosine ceramides with non- and alpha-hydroxylated acyl chains in skin lipid model membranes. Int J Pharm 2019; 563:384-394. [PMID: 30959237 DOI: 10.1016/j.ijpharm.2019.04.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/02/2019] [Accepted: 04/04/2019] [Indexed: 11/26/2022]
Abstract
Ceramides (Cers) are significant constituents of the stratum corneum (SC), the uppermost skin layer responsible for skin barrier properties. Cers are a heterogeneous group of lipids whose mutual interactions are still unclear. To better understand these interactions, we characterized model membranes containing stearic acid, cholesterol, cholesterol sulfate and one or more of the following ceramides: N-stearoyl-sphingosine (CerNS), N-stearoyl-phytosphingosine (CerNP) and N-(2-hydroxy)stearoyl-phytosphingosine (CerAP). Small angle X-ray scattering and FTIR spectroscopy were used to study lipid arrangement, phase separation and thermotropic behaviour. In the one-Cer systems, the membranes with CerNP showed strong hydrogen bonding and significant phase separation, even after phase transition, while the systems containing CerAP and CerNS had increased lipid miscibility. The multi-Cer systems exhibited different behaviour. In particular, the membrane containing all three Cers was a highly miscible system with narrow one-step phase transition, which, of all the studied samples, occurred at the lowest temperatures. Our results show that even a small variation in Cer structure results in substantially different phase behaviour, which is further affected by the presence of other Cer subclasses. Interestingly, the phase behaviour of the most complex three-Cer system was simpler than that of the others, highlighting the importance of lipid diversity in real SC.
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Affiliation(s)
- Barbora Amélie Čuříková-Kindlová
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Department of Organic Technology, Technická 5, 166 28 Prague, Czech Republic
| | - Olivier Diat
- Institute de Chimie Séparative de Marcoule, ICSM, CEA, CNRS, ENSCM, Univ Montpellier, Bagnols-sur-Cèze, France
| | - František Štěpánek
- University of Chemistry and Technology Prague, Faculty of Chemical Engineering, Department of Chemical Engineering, Technická 5, 166 28 Prague, Czech Republic
| | - Kateřina Vávrová
- Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Jarmila Zbytovská
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Department of Organic Technology, Technická 5, 166 28 Prague, Czech Republic; Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
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7
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Samoylova NY, Kiselev MA, Hauß T. Effect of DMSO, urea and ethanol on hydration of stratum corneum model membrane based on short-chain length ceramide [AP]. Chem Phys Lipids 2019; 221:1-7. [PMID: 30825421 DOI: 10.1016/j.chemphyslip.2019.02.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 02/08/2019] [Accepted: 02/25/2019] [Indexed: 10/27/2022]
Abstract
Hydration of oriented multilamellar membrane based on ceramide [AP] in the DMSO, urea and ethanol aqueous solutions at various solute concentrations was investigated by neutron diffraction. Neither urea nor DMSO influence the repeat distance of the membrane and internal structure of bilayer at their mole concentration of up to 0.15 and 0.10, respectively. The d-spacing reduction effect of both compounds was observed at their concentrations of 0.2 for urea and 0.2 and 0.4 for DMSO. Compared to hydration in the pure water, both urea and DMSO slow down the swelling process, and this slowdown is more pronounced with increasing in their concentration. At concentration of 0.2, urea and DMSO induce the slight phase separation of the fully hydrated samples; at the highest used concentration of 0.6, DMSO induces the strong time-depend separation of the sample probably due to fluidization of lipid bilayers. Ethanol at a used molar concentration of 0.03 leads to dissolution of the sample.
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Affiliation(s)
- N Yu Samoylova
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980, Dubna, Russia; Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234, Moscow, Russia.
| | - M A Kiselev
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980, Dubna, Russia; Lomonosov Moscow State University, 119234, Moscow, Russia; Dubna State University, 141980, Dubna, Russia
| | - T Hauß
- Macromolecular Crystallography, Helmholtz-Zentrum Berlin für Materialien und Energie, 14109, Berlin, Germany
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8
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Čuříková BA, Procházková K, Filková B, Diblíková P, Svoboda J, Kováčik A, Vávrová K, Zbytovská J. Simplified stratum corneum model membranes for studying the effects of permeation enhancers. Int J Pharm 2017; 534:287-296. [PMID: 29061325 DOI: 10.1016/j.ijpharm.2017.10.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 10/17/2017] [Accepted: 10/19/2017] [Indexed: 01/10/2023]
Abstract
The activity of transdermal permeation enhancers is usually evaluated in vitro on human or animal skin, but skin samples can be hard to source and highly variable. To provide a more consistent basis for evaluating the activity of permeation enhancers, we prepared relatively simple and inexpensive artificial membranes that imitate the stratum corneum (SC) lipid matrix. Our membranes were composed of stearic acid, cholesterol, cholesterol sulfate and a ceramide (CER) component consisting of N-2-hydroxystearoyl phytosphingosine (CER[AP]) and/or N-stearoyl phytosphingosine (CER[NP]). First, the permeation of theophylline (TH) and indomethacin (IND) through these membranes was compared with their permeation through porcine skin. Because the mixed CER[AP]/[NP] membrane gave the closest results to skin, this membrane was then used to test the effects of two permeation enhancers: N-dodecyl azepan-2-one (Azone) and (S)-N-acetylproline dodecyl ester (L-Pro2). Both enhancers significantly increased the flux of TH and IND through the skin and, even more markedly, through the lipid membrane, L-Pro2 having a stronger effect than Azone. Thus, our simplified model of the SC lipid membrane based on phytosphingosine CERs appears to be suitable for mimicking skin permeation.
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Affiliation(s)
- Barbora Amélie Čuříková
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Kamila Procházková
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Barbora Filková
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Petra Diblíková
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Jan Svoboda
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Andrej Kováčik
- Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Kateřina Vávrová
- Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Jarmila Zbytovská
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Technická 5, 166 28, Prague, Czech Republic; Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
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9
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Mueller J, Oliveira J, Barker R, Trapp M, Schroeter A, Brezesinski G, Neubert R. The effect of urea and taurine as hydrophilic penetration enhancers on stratum corneum lipid models. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:2006-2018. [DOI: 10.1016/j.bbamem.2016.05.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 05/08/2016] [Accepted: 05/13/2016] [Indexed: 10/21/2022]
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10
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Parhi R, Suresh P. Transdermal delivery of Diltiazem HCl from matrix film: Effect of penetration enhancers and study of antihypertensive activity in rabbit model. J Adv Res 2015; 7:539-50. [PMID: 27222758 DOI: 10.1016/j.jare.2015.09.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 09/01/2015] [Accepted: 09/04/2015] [Indexed: 11/27/2022] Open
Abstract
The present investigation focused on the development of Diltiazem HCl (DTH) matrix film and its characterization by in-vitro, ex-vivo and in-vivo methods. Films were prepared by solvent casting method by taking different ratios of hydroxypropyl methylcellulose K4M (HPMC K4M) and Eudragit RS100. Various parameters of the films were analyzed such as mechanical property using tensile tester, interaction study by Fourier transform infrared spectroscopy (FTIR) and Thermogravimetric analysis (TGA), in-vitro drug release through cellulose acetate membrane, ex-vivo permeation study using abdominal skin of rat employing Franz diffusion cell, and in-vivo antihypertensive activity using rabbit model. The FTIR studies confirmed the absence of interaction between DTH and selected polymers. Thermal analysis showed the shifting of endothermic peak of DTH in film, indicating the dispersion of DTH in molecular form throughout the film. Incorporation of 1,8-cineole showed highest flux (89.7 μg/cm(2)/h) of DTH compared to other penetration enhancers such as capsaicin, dimethyl sulfoxide (DMSO), and N-methyl pyrrolidone (NMP). Photomicrographs of histology study on optimized formulation (DF9) illustrated disruption of stratum corneum (SC) supporting the ex-vivo results. The in-vivo antihypertensive activity results demonstrated that formulation DF9 was effective in reducing arterial blood pressure in normotensive rabbits. SEM analysis of films kept for stability study (40 ± 2 °C/75% ± 5%RH for 3 months) revealed the formation of drug crystals which may be due to higher temperature. The findings of the study provide a better alternative dosage form of DTH for the effective treatment of hypertension with enhanced patient compliance.
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Affiliation(s)
- Rabinarayan Parhi
- Institute of Pharmacy, GITAM University, Gandhi Nagar Campus, Rushikunda, Visakhapatnam 530045, Andhra Pradesh, India
| | - Padilam Suresh
- Institute of Pharmacy and Technology, Salipur 754202, Cuttack, Odisha, India
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11
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Yamamoto K, Flesch R, Ohigashi T, Hedtrich S, Klossek A, Patoka P, Ulrich G, Ahlberg S, Rancan F, Vogt A, Blume-Peytavi U, Schrade P, Bachmann S, Schäfer-Korting M, Kosugi N, Rühl E. Selective Probing of the Penetration of Dexamethasone into Human Skin by Soft X-ray Spectromicroscopy. Anal Chem 2015; 87:6173-9. [DOI: 10.1021/acs.analchem.5b00800] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- K. Yamamoto
- Physikalische
Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Takustrasse
3, Germany
| | - R. Flesch
- Physikalische
Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Takustrasse
3, Germany
| | - T. Ohigashi
- Institute for Molecular Science, Myodaiji,
Okazaki 444-8585, Japan
| | - S. Hedtrich
- Institut
für Pharmazie, Freie Universität Berlin, 14195 Berlin, Germany
| | - A. Klossek
- Physikalische
Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Takustrasse
3, Germany
| | - P. Patoka
- Physikalische
Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Takustrasse
3, Germany
| | - G. Ulrich
- Physikalische
Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Takustrasse
3, Germany
| | - S. Ahlberg
- Klinisches
Forschungszentrum für Haut-und Haarforschung, Charité Universitätsmedizin, 10117 Berlin, Germany
| | - F. Rancan
- Klinisches
Forschungszentrum für Haut-und Haarforschung, Charité Universitätsmedizin, 10117 Berlin, Germany
| | - A. Vogt
- Klinisches
Forschungszentrum für Haut-und Haarforschung, Charité Universitätsmedizin, 10117 Berlin, Germany
| | - U. Blume-Peytavi
- Klinisches
Forschungszentrum für Haut-und Haarforschung, Charité Universitätsmedizin, 10117 Berlin, Germany
| | - P. Schrade
- Abteilung für
Elektronenmikroskopie at CVK, 13353 Berlin, Germany
| | - S. Bachmann
- Abteilung für
Elektronenmikroskopie at CVK, 13353 Berlin, Germany
| | | | - N. Kosugi
- Institute for Molecular Science, Myodaiji,
Okazaki 444-8585, Japan
| | - E. Rühl
- Physikalische
Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Takustrasse
3, Germany
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12
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Transdermal nitroglycerin delivery using acrylic matrices: design, formulation, and in vitro characterization. ISRN PHARMACEUTICS 2014; 2014:493245. [PMID: 24511396 PMCID: PMC3913351 DOI: 10.1155/2014/493245] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 11/17/2013] [Indexed: 11/25/2022]
Abstract
Nitroglycerin (TNG) transdermal drug delivery systems (TDDSs) with different acrylic pressure-sensitive adhesives (PSAs) and chemical permeation enhancers (CPEs) were prepared. The effects of PSAs and CPEs types and concentrations on skin permeation and in vitro drug release from devices were evaluated using the dissolution method as well as the modified-jacketed Franz diffusion cells fitted with excised rat abdominal skin. It was demonstrated that the permeation rate or steady state flux (Jss) of the drug through the excised rat skin was dependent on the viscosity and type of acrylic PSA as well as the type of CPE. Among different acrylic PSAs, Duro-Tak 2516 and Duro-Tak 2054 showed the highest and Duro-Tak 2051 showed the lowest Jss. Among the various CPEs, propylene glycol and cetyl alcohol showed the highest and the lowest enhancement of the skin permeation of TNG, respectively. The adhesion properties of devices such as 180° peel strength and probe tack values were obtained. It was shown that increasing the concentration of CPE led to reduction in the adhesion property of PSA. Moreover, after optimization of the formulation, it was found that the use of 10% PG as a CPE and 25% nitroglycerin loading in Duro-Tak 2054 is an effective monolithic DIAP for the development of a transdermal therapeutic system for nitroglycerin.
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13
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Erdal MS, Peköz AY, Aksu B, Araman A. Impacts of chemical enhancers on skin permeation and deposition of terbinafine. Pharm Dev Technol 2013; 19:565-70. [PMID: 23841559 DOI: 10.3109/10837450.2013.813538] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Meryem Sedef Erdal
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, 34116 Beyazıt , Istanbul , Turkey and
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14
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Schroeter A, Engelbrecht T, Neubert RHH. Influence of short chain ceramides and lipophilic penetration enhancers on the nano-structure of stratum corneum model membranes studied using neutron diffraction. Front Chem Sci Eng 2013. [DOI: 10.1007/s11705-013-1302-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Nor Khaizan A, Wong TW. MICROWAVE: EFFECTS AND IMPLICATIONS IN TRANSDERMAL DRUG DELIVERY. ACTA ACUST UNITED AC 2013. [DOI: 10.2528/pier13061604] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ochalek M, Podhaisky H, Ruettinger HH, Neubert R, Wohlrab J. SC lipid model membranes designed for studying impact of ceramide species on drug diffusion and permeation, Part III: Influence of penetration enhancer on diffusion and permeation of model drugs. Int J Pharm 2012; 436:206-13. [DOI: 10.1016/j.ijpharm.2012.06.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 06/17/2012] [Accepted: 06/20/2012] [Indexed: 11/27/2022]
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Wong TW, Nor Khaizan A. Physicochemical Modulation of Skin Barrier by Microwave for Transdermal Drug Delivery. Pharm Res 2012; 30:90-103. [DOI: 10.1007/s11095-012-0852-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Accepted: 08/01/2012] [Indexed: 11/30/2022]
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Yaghmur A, Sartori B, Rappolt M. Self-assembled nanostructures of fully hydrated monoelaidin-elaidic acid and monoelaidin-oleic acid systems. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:10105-10119. [PMID: 22690845 DOI: 10.1021/la3019716] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In recent years, there has been a surge of interest in exploring the effect of trans-fatty acids (TFAs) on biological membrane properties. The research studies are motivated by an increasing body of evidence suggesting that the consumption of TFAs increases the risk of developing negative health effects such as coronary heart disease and cancer. The ultimate goal of studying the lipid-fatty acid interactions at the molecular level is to predict the biological role of fatty acids in cells. In this regard, it is interesting to elucidate the effect of loading TFAs and their counterpart cis-fatty acids (CFAs) on the physical properties of lipid model membranes. Here, the present study focuses on discussing the following: (1) the effect of mixing monoelaidin (ME, TFA-containing lipid) with its counterpart monoolein (MO, CFA-containing lipid) on modulating the fully hydrated self-assembled structure, and (2) the influence of solubilizing oleic acid (OA) and its trans counterpart elaidic acid (EA) on the fully hydrated ME system. The ME model membrane was selected due to its sensitivity to variations in lipid composition and temperature. Synchrotron small-angle X-ray scattering (SAXS) was applied for studying the temperature-dependent structural behavior of the fully hydrated ME/MO-based system prepared with an equal ME/MO weight ratio and also for characterizing the fully hydrated OA- and EA-loaded ME systems. Wide-angle X-ray (WAXS) experiments were also performed for characterizing the formed crystalline lamellar phases at ambient temperatures. The results demonstrate the significant influence of the partial replacement of ME by MO on the phase behavior. The addition of MO induces the lamellar-nonlamellar phase transitions at ambient temperatures and promotes the formation of the inverted type hexagonal (H(2)) phase above 72 °C. The fully hydrated ME/EA and ME/OA systems with their rich polymorphism exhibit an interesting temperature-dependent complex behavior. The experimental findings show that the temperature-induced phase transitions are dictated by the solubilized fatty acid concentration and its configuration. Both EA and OA have a significant impact on the fully hydrated ME system. Similar to previous published studies, OA induces a significantly stronger mean negative membrane curvature as compared to EA. The two phase diagrams are discussed in terms of water-lipid and lipid-fatty acid interactions, membrane bending, and lipid packing concepts. A newly observed interesting epitaxial relationship for the lamellar-hexagonal phase transition in the EA-loaded ME system is illustrated and discussed in detail.
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Affiliation(s)
- Anan Yaghmur
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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Engelbrecht TN, Schroeter A, Hauß T, Neubert RH. Lipophilic penetration enhancers and their impact to the bilayer structure of stratum corneum lipid model membranes: Neutron diffraction studies based on the example Oleic Acid. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2011; 1808:2798-806. [DOI: 10.1016/j.bbamem.2011.08.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Revised: 07/29/2011] [Accepted: 08/09/2011] [Indexed: 10/17/2022]
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