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Wang Y, Chen Q, Huang X, Yan X. Acacetin-loaded microemulsion for transdermal delivery: preparation, optimization and evaluation. PHARMACEUTICAL BIOLOGY 2023; 61:790-798. [PMID: 37161881 PMCID: PMC10173800 DOI: 10.1080/13880209.2023.2207597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
CONTEXT Acacetin is reported as a potential drug candidate for the treatment of atrial fibrillation. However, clinical applications are limited by poor water solubility, limited ethanol solubility, and extremely low oral bioavailability. OBJECTIVE The present study prepared and evaluated acacetin-loaded microemulsion (ME) to achieve efficient pharmacokinetics together with no or minimal invasiveness for transdermal delivery. MATERIALS AND METHODS The formulation of ME was determined by the water titration method based on solubility results. The optimized formulation was achieved by the simplex lattice experiment design. The optimized ME formulations FA, FB and FC (FA with 10% and 50% DMSO as enhancers, respectively) were evaluated by ex vivo permeation with Franz diffusion cell and excised mice skin. In vivo pharmacokinetic studies were also performed at 8 mg/kg in rats within 6 h by transdermal administration. RESULTS The optimal ME (FA) was comprised of 12.2% caprylic acid decanoate monoditriglyceride (MCF-NF), 39.8% Smix (RH40: Trans = 2:1 w/w) and 48% water, respectively. Acacetin-loaded FA with particle size 36.0 ± 3.6 nm and drug solubility 803.7 ± 32.1 mg/g was prepared. FB had significantly higher cumulative amounts and higher AUC0-∞ (196.6 ± 11.0 min × μg/mL, p < 0.05) than that FA alone (121.4 ± 33.1 min × μg/mL). DISCUSSION AND CONCLUSIONS The formulation of ME combined with the penetration enhancer can effectively improve the solubility and percutaneous absorption efficiency of acacetin, providing a new option for the non-invasive delivery of acacetin.
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Affiliation(s)
- Yajing Wang
- Department of Pharmacy, Changzhou University, Changzhou, PR China
| | - Qian Chen
- Department of Pharmacy, Changzhou University, Changzhou, PR China
| | - Xianfeng Huang
- Department of Pharmacy, Changzhou University, Changzhou, PR China
| | - Xiaojing Yan
- Changzhou Key Laboratory of Human Use Experience Research & Transformation of Menghe Medical School, Changzhou Hospital affiliated to Nanjing University of Chinese Medicine, Changzhou, PR China
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Al-Suwayeh SA, Badran MM, Alhumoud GO, Taha EI, Ashri LY, Kazi M. Design and dermatokinetic appraisal of lornoxicam-loaded ultrafine self-nanoemulsion hydrogel for the management of inflammation: In vitro and in vivo studies. Saudi Pharm J 2023; 31:889-903. [PMID: 37228319 PMCID: PMC10203694 DOI: 10.1016/j.jsps.2023.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/03/2023] [Indexed: 05/27/2023] Open
Abstract
The present study aimed to evaluate the impact of ultrafine nanoemulsions on the transdermal delivery of lornoxicam (LOR) for management of the inflammation. The transdermal administration of LORNE could increase the efficacy of LOR with a reduction in side effects. Merging the beneficial properties of ultrafine nanoemulsions and their components (penetration enhancers) can lead to good solubilization, a small droplet size, and more effective LOR carriers. Therefore, this study aims to develop and evaluate the potential use of ultrafine nanoemulsions of LOR (LORNE) to elucidate their skin targeting for the treatment of inflammation. Based on solubility and pseudo ternary phase diagram tests, ultrafine LORNE composed of Labrafil M 2125 CS, Cremophor RH40, and Transcutol HP to deliver LOR was developed and characterized for its physicochemical properties, emulsification, and in vitro release. The selected LORNE was incorporated into carbopol gel (LORNE-Gel) and examined for ex vivo skin permeation, retention, dermatokinetics, anti-inflammatory efficacy, and skin irritation. The selected LORNE12-Gel could improve skin permeation, retention, and dermatokinetic results significantly (p < 0.05) with enhanced CSkin max and AUC0-48h compared to LOR-Gel. Moreover, LORNE12-Gel showed a remarkable anti-inflammatory effect compared to LOR-Gel after topical application. No signs of skin irritation were observed following treatment, indicating the safety of LORNE12-Gel. Thus, this study demonstrated that LOR-loaded LORNE12-Gel could be promising as an efficient transdermal nanocarrier for an anti-inflammatory alternative.
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Affiliation(s)
| | - Mohamed M. Badran
- Corresponding author at: Department of Pharmaceutics, College of Pharmacy, King Saud University, Building # 23, AA 68, P.O. Box 2457, Riyadh 11451, Saudi Arabia.
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Makky AMA, S El-Leithy E, Hussein DG, Khattab A. A Full Factorial Design to Optimize Aminexil Nano Lipid Formulation to Improve Skin Permeation and Efficacy Against Alopecia. AAPS PharmSciTech 2023; 24:40. [PMID: 36653508 DOI: 10.1208/s12249-023-02500-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 12/27/2022] [Indexed: 01/20/2023] Open
Abstract
Aminexil (AMX) is considered to be one of the most widely used hair growth promoters. Nanostructured lipid carriers (NLC) are employed to increase the permeation of both lipophilic and hydrophilic drugs. Aminexil nanostructured lipid carrier (NLC) designed by pre-emulsion/ultrasonication method was utilized for alopecia treatment. For selecting optimum excipients, a solubility study was executed in liquid lipids, solid lipids, surfactants, and co-surfactants. A 23 full factorial design was utilized for NLC optimization. Characterization of the developed formulas was performed. The penetration of the optimized formula across cuticle tissues was studied using confocal laser scanning microscopy (CLSM). AMX showed high solubility in glyceryl monostearate (GMS) and stearic acid, 28.87 ± 2.17 and 58.06 ± 2.227 mg/g, respectively. The results of physicochemical characterization showed that formula A7 was the optimized one. It is composed of GMS (solid lipid), oleic acid:garlic oil (1:1 v/v) (liquid lipid), and a surfactant/co-surfactant mixture (Cremophor EL/Transcutol HP). The particle size (PS) was 238.0 ± 2.13 nm, entrapment efficiency (EE) 100.535 ± 6.73%, and zeta potential (ZP) - 29.3 ± 0.93 mv. Ex vivo permeation study demonstrates the potential of AMX-NLC (formula A7) as a delivery system for AMX. The CLSM highly proved AMX-loaded NLC penetration through the skin. The histological study clearly demonstrated that AMX-loaded NLC promoted hair growth more effectively than the market product in chemotherapy-induced alopecia rats. The acquired findings revealed that targeting of AMX-loaded NLC into hair follicles was improved.
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Affiliation(s)
- Amna M A Makky
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | - Eman S El-Leithy
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Cairo, Egypt.,Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Ain-Helwan, Cairo, 11795, Egypt
| | - Doaa Galaa Hussein
- Department of Pharmaceutics, Egyptian Drug Authority (EDA), Cairo, Egypt
| | - Abeer Khattab
- Department of Pharmaceutics, Egyptian Drug Authority (EDA), Cairo, Egypt.
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Liu L, Ma Q, Wang S, Gao Y, Zhu C, Zhao W, Sun W, Ma H, Sun Y. Efficient epidermal delivery of antibiotics by self-assembled lecithin/chitosan nanoparticles for enhanced therapy on epidermal bacterial infections. Int J Biol Macromol 2022; 218:568-579. [PMID: 35902014 DOI: 10.1016/j.ijbiomac.2022.07.165] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 07/20/2022] [Accepted: 07/20/2022] [Indexed: 11/30/2022]
Abstract
The treatment for epidermal bacterial infections has become a primary healthy concern, producing a significant therapeutic challenge. Here we present a facile strategy to fabricate lecithin/chitosan nanoparticles (LCNPs) for efficient epidermal drug delivery over epidermal bacterial infections. The central rotatable composite design method was used for the optimization of the preparation, and that the optimal size (212.63 ± 1.95 nm) was obtained via analysis of variance (ANOVA). The prepared CIP-LCNPs show an average diameter of 325.9 ± 7.4 nm and a zeta potential of 26.6 ± 1.2 mV. Antibiotics can be well encapsulated in LCNPs and its release kinetics is studied with cumulative release of 93.81 ± 2.05 % for 48 h. The hemolytic activity, cytotoxicity, and skin irritation are further investigated. The zones of inhibition are 2.16 ± 0.04 cm and 2.92 ± 0.03 cm for Escherichia coli and Staphylococcus aureus, respectively. Moreover, in vitro permeation studies demonstrate that LCNPs can increase the accumulation of antibiotics in the epidermis with retention ratio 2-3 fold higher than commercial formulations. The in vivo result over epidermal-infected wound demonstrates the superior therapeutic effects of LCNPs. The developed LCNPs represent an important advance in fabricating therapeutic materials for enhanced therapy over epidermal bacterial infections.
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Affiliation(s)
- Lijun Liu
- School of Pharmacy, Qingdao University, Qingdao 266071, China
| | - Qingming Ma
- School of Pharmacy, Qingdao University, Qingdao 266071, China.
| | - Suning Wang
- Tongliao Market Detection and Testing Center, Tongliao 028000, China
| | - Yang Gao
- School of Pharmacy, Qingdao University, Qingdao 266071, China
| | - Chunrong Zhu
- School of Pharmacy, Qingdao University, Qingdao 266071, China
| | - Wenbin Zhao
- School of Pharmacy, Qingdao University, Qingdao 266071, China
| | - Wentao Sun
- School of Health and Life Sciences, University of Health and Rehabilitation Sciences, Qingdao 266113, China.
| | - Haifeng Ma
- Department of Geriatrics, Zibo Municipal Hospital, Zibo 255400, China.
| | - Yong Sun
- School of Pharmacy, Qingdao University, Qingdao 266071, China.
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Seleem M, Abulfadl YS, Hoffy N, Lotfy NM, Ewida HA. Promising role of topical caffeine mesoporous gel in collagen resynthesis and UV protection through proline assessment. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2022. [DOI: 10.1186/s43094-022-00417-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Caffeine, an alkaloid agent, has been globally used regularly in drinks, for the reduction in skin cancers and wrinkle formation. As a result of the previous, attempts have been carried out to use caffeine in cosmetology due to its antioxidant and UV ray protection effects. Our aim was to evaluate the effect of caffeine on collagen resynthesis via its effect on proline and prolidase biosynthesis on mice, orally and topically as mesoporous silica at three levels, and the influence on UV protection. In skin biopsies of orally and topically treated mice, the following was assessed using ELISA and Western blot techniques, the activity of prolidase, together with the concentrations of proline, beta integrin, insulin growth factor, protein kinases beta, and mitogen-activated protein kinase. Moreover, we loaded the caffeine on mesoporous silica and assessed the aforementioned parameters together with checkpoint kinase 1 and Rad3-related protein.
Results
Caffeine promoted collagen resynthesis in a dose-dependent manner. The mechanism of this process was found at the level of prolidase activity as caffeine significantly increased the enzyme activity. Caffeine also had a protective effect against UV exhibited by the over-expression of beta integrin, insulin growth factor together with the under-expression of protein kinases beta, mitogen-activated protein kinase, checkpoint kinase 1, and Rad3-related protein.
Conclusions
Our study revealed the superiority of SYL-C12 (mesoporous silica-loaded caffeine gel), compromising the high level of the three independent factors, in terms of the measured responses in mesoporous silica with caffeine. Moreover, caffeine promoted collagen resynthesis with significant protective effect against UV apoptotic damage.
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Naeem M, Iqbal T, Nawaz Z, Hussain S. Preparation, optimization and evaluation of transdermal therapeutic system of celecoxib to treat inflammation for treatment of rheumatoid arthritis. AN ACAD BRAS CIENC 2021; 93:e20201561. [PMID: 34878046 DOI: 10.1590/0001-3765202120201561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 07/01/2021] [Indexed: 11/22/2022] Open
Abstract
The purpose of present study was to prepare transdermal therapeutic system that could enhance dissolution of poorly aqueous soluble drug Celecoxib and thus increase its skin permeation. Solubility studies screened triacetin as oil, cremophor RH 40 as surfactant and Polyethylene Glycol 400 as co-surfactant. Pseudoternary phase diagrams were constructed to find out microemulsion region. Independent variables (oil, Smix and water) concentration was used at high (+1) and low levels (-1) that would generate 17 different combinations of microemulsions. Microemulsions were characterized, optimized and evaluated. pH, viscosity, conductivities, refractive index, droplet size and poly-dispersity-index was investigated. Prepared microemulsions were oil in water, thermodynamically stable, isotropic, transparent, deflocculated and within narrow range of size. Mathematical equations and response surface plots related the independent and dependent variables. Optimum microemulsion ME6 was further incorporated with carbomer 940 gel base to produce microemulsion based gel. ME6 and its gel showed significant difference (p<0.05) from control gel. Stability studies showed prepared MEBG of celecoxib was stable during storage period. Skin irritation studies found the gel was safe and non-irritating to skin. Anti-inflammatory studies showed significant difference (p<0.05) compared to control gel. Thus, the therapeutic system was successfully developed and optimized using Box Behnken statistical design.
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Affiliation(s)
- Muhammad Naeem
- Department of Pharmacy, Shah Abdul Latif University, old national highway, Khairpur, 66020 Sindh, Pakistan
| | - Taniya Iqbal
- Institute of Chemical Sciences, Bahauddin Zakariya University, Bosan Road, 60000 Multan, Pakistan
| | - Zarqa Nawaz
- Department of Chemistry, The Islamia University of Bahawalpur, Hasilpur road, 63100 Bahawalpur, Pakistan
| | - Sajjad Hussain
- Department of Zoology, University of Agriculture, University road, police line, 38000 Faisalabad, Pakistan
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Shen L, Hou X, Wang Z, Guo T, He Z, Ruan S, Liu Z, Ruan H, Zhang Y, Feng N. O/W microemulsion droplets diffuse through hydrogel network to achieve enhanced transdermal drug delivery. Drug Deliv 2021; 28:2062-2070. [PMID: 34595985 PMCID: PMC8491714 DOI: 10.1080/10717544.2021.1983073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
To overcome the poor water solubility of total flavones of Arisaematis rhizoma, microemulsions (MEs) can be used as a carrier for transdermal administration to promote their solubilization and skin permeability. Here, we investigated the physical compatibility of MEs in hydrogels and their skin permeation-enhancing effects. Transparency of microemulsion-based hydrogels (MBGs) was analyzed to evaluate ME compatibility with different hydrogel matrices. Transmission electron microscopy (TEM) and Fourier transform infrared (FTIR) spectroscopy were used to explore the microstructures of MBGs and ME–hydrogel combinations. Uniform and transparent MBG was obtained by adding 1% sodium hyaluronate (SH) to the optimized ME. MBG prepared with SH as a matrix expressed pseudoplastic-fluid and shear-thinning characteristics, making it easy to apply in clinical settings. No new FTIR peak occurred in the MBG compared with ME and hydrogel matrix, indicating a physical combination of ME and the polymer network gel. Nanoscale droplets of ME migrated in the gel network, and the migration capacity and in vitro transdermal permeation flux negatively correlated with SH concentration in the gel system. In conclusion, in MBGs, ME can keep nanoscale droplets migrating in the hydrogel network, thereby enhancing transdermal drug delivery.
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Affiliation(s)
- Lina Shen
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Pharmacy, The People's Hospital of Hebi, Hebi, China
| | - Xiaolin Hou
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhi Wang
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Teng Guo
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zehui He
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shuyao Ruan
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhenda Liu
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hang Ruan
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yongtai Zhang
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Nianping Feng
- Department of Pharmaceutical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Bashir M, Ahmad J, Asif M, Khan SUD, Irfan M, Y Ibrahim A, Asghar S, Khan IU, Iqbal MS, Haseeb A, Khalid SH, As Abourehab M. Nanoemulgel, an Innovative Carrier for Diflunisal Topical Delivery with Profound Anti-Inflammatory Effect: in vitro and in vivo Evaluation. Int J Nanomedicine 2021; 16:1457-1472. [PMID: 33654396 PMCID: PMC7910103 DOI: 10.2147/ijn.s294653] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 01/28/2021] [Indexed: 11/25/2022] Open
Abstract
Purpose Rheumatoid arthritis is an autoimmune disorder that directly affects joints. However, other body organs including heart, eyes, skin, blood vessels and lungs may also be affected. The purpose of this study was to design and evaluate a nanoemulgel formulation of diflunisal (DIF) and solubility enhanced diflunisal (DIF-IC) for enhanced topical anti-inflammatory activity. Methodology Nanoemulsion formulations of both DIF and DIF-IC were prepared and incorporated in three different gelling agents, namely carboxymethylcellulose sodium (CMC-Na), sodium alginate (Na-ALG) and xanthan gum (XG). All the formulations were evaluated in term of particle size, pH, conductivity, viscosity, zeta potential and in vitro drug release. The formulation 2 (NE2) of both DIF and DIF-IC which expressed optimum release and satisfactory physicochemical properties was incorporated with gelling agents to produce final nanoemulgel formulations. The optimized nanoemulgel formulation was subjected to three different in vivo anti-inflammatory models including carrageenan-induced paw edema model, histamine-induced paw edema model and formalin-induced paw edema model. Results DIF-IC-loaded nanoemulgel formulations yielded significantly enhanced in vitro skin permeation than DIF-loaded nanoemulgel. The nanoemulgel formulation of DIF-IC formulated with XG produced improved in vivo anti-inflammatory activity. Conclusion It was recommended that DIF-IC-based nanoemulgel formulation prepared with XG could be a better option for effective topical treatment of inflammatory conditions.
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Affiliation(s)
- Mehreen Bashir
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Junaid Ahmad
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Muhammad Asif
- Department of Pharmacology, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Salah-Ud-Din Khan
- Department of Biochemistry, College of Medicine, Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia
| | - Muhammad Irfan
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Asim Y Ibrahim
- Faculty of Pharmacy, Omdurman Islamic University, Omdurman, Sudan
| | - Sajid Asghar
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Ikram Ullah Khan
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Muhammad Shahid Iqbal
- Department of Clinical Pharmacy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia
| | - Abdul Haseeb
- Department of Clinical Pharmacy, College of Pharmacy, Umm Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Syed Haroon Khalid
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, 38000, Pakistan
| | - Mohammed As Abourehab
- Department of Pharmaceutics, Faculty of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia.,Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Minia University, Minia, Egypt
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Application of micro-emulsion formulation in improving the antiproliferative performance of Salix mucronata (Thunb) leaves with chemical investigation of the active extract. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.chnaes.2020.04.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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10
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Sun MC, Xu XL, Lou XF, Du YZ. Recent Progress and Future Directions: The Nano-Drug Delivery System for the Treatment of Vitiligo. Int J Nanomedicine 2020; 15:3267-3279. [PMID: 32440123 PMCID: PMC7217315 DOI: 10.2147/ijn.s245326] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/08/2020] [Indexed: 12/23/2022] Open
Abstract
Vitiligo is a depigmentation disease that seriously affects the physical health, mental health and quality of life of a patient. Therapeutic aim at control immunoreaction by relieving oxidative stress. Unfortunately, the cuticle barrier function and lack of specific accumulation lead to unsatisfactory therapeutic outcomes and side effects. The introduction and innovation of nanotechnology offers inspiration and clues for the development of new strategies to treat vitiligo. However, not many studies have been done to interrogate how nanotechnology can be used for vitiligo treatment. In this review, we summarize and analyze recent studies involving nano-drug delivery systems for the treatment of vitiligo, with a special emphasis on liposomes, niosomes, nanohydrogel and nanoparticles. These studies made significant progress by either increasing drug loading efficiency or enhancing penetration. Based on these studies, there are three proposed principles for topical nano-drug delivery systems treatment of vitiligo including the promotion of transdermal penetration, enhancement of drug retention and facilitation of melanin regeneration. The presentation of these ideas may provide inspirations for the future development of topical drug delivery systems that will conquer vitiligo.
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Affiliation(s)
- Ming-Chen Sun
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Xiao-Ling Xu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Xue-Fang Lou
- School of Medicine, Zhejiang University City College, Hangzhou 310015, People's Republic of China
| | - Yong-Zhong Du
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
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11
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Shaker DS, Ishak RAH, Elhuoni MA, Ghoneim AM. Boosting transdermal delivery of atorvastatin calcium via o/w nanoemulsifying system: Two-step optimization, ex vivo and in vivo evaluation. Int J Pharm 2020; 578:119073. [PMID: 31982556 DOI: 10.1016/j.ijpharm.2020.119073] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/19/2020] [Accepted: 01/20/2020] [Indexed: 12/16/2022]
Abstract
A nanoemulsion system was designed for Atorvastatin calcium (ATOR) transdermal delivery to overcome its poor bioavailability of (30%) resulting from the extensive first-pass effect and dissolution rate-limited in vivo absorption. Pseudo ternary phase diagrams were developed, and various NE formulae were prepared using oleic acid (OA), Tween 80 as surfactant and PEG 400 as cosurfactant, ethanol and limonene as permeation enhancers (PEs). NEs were characterized for morphology, droplet size, zeta potential and in vitro release. The optimized formulae were assessed for ex vivo transdermal permeation and in vivo pharmacodynamic/pharmacokinetic studies. Hypocholesterolemic effect after 7 days skin treatment was detected and compared to oral ATOR dispersion. Finally, blood plasma levels were measured for 24 h for rats received the selected transdermal NE and transdermal drug in OA. The obtained results suggested the low potentiality of NE systems in transdermal delivery of lipophilic drugs, only the addition of PEs is driving factor for increasing drug flux through full thickness rat skin. In the optimized formula, the presence of ethanol and PEG 400 disrupts SC lipids exhibiting rapid ex vivo release profile compared to other NEs and to ATOR in OA. In contrast, the optimized NE achieved a prolonged plasma profile. Transdermal NE was significantly more efficient than oral administration in lowering cholesterol plasma level and in increasing ATOR bioavailability. In conclusion, data revealed no correlation between ex vivo and in vivo studies explained by the collapse of the follicles in ex vivo skin permeation study, leaving only the lipoidal pathway for NE to pass through, thus only NE components, neither nanosizing nor other reported mechanisms, are the main influencing factors. In vivo experiments suggested that o/w NE changed ATOR pathway to follicular delivery leading to accumulation of NE in follicles and consequently a prolonged plasma profile.
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Affiliation(s)
- Dalia S Shaker
- Department of Pharmaceutics &Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt (FUE), Cairo, Egypt.
| | - Rania A H Ishak
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
| | - Muaeid A Elhuoni
- Quality Control Department, Elnajah Medical Services, Benghazi, Libya
| | - Amira M Ghoneim
- Department of Pharmaceutics &Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt (FUE), Cairo, Egypt.
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Enhancement of transdermal delivery of artemisinin using microemulsion vehicle based on ionic liquid and lidocaine ibuprofen. Colloids Surf B Biointerfaces 2020; 189:110886. [PMID: 32109824 DOI: 10.1016/j.colsurfb.2020.110886] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 02/17/2020] [Accepted: 02/18/2020] [Indexed: 12/18/2022]
Abstract
A microemulsion system based on ionic liquid (IL) and deep eutectic compound was proposed to improve the transdermal delivery of artemisinin. Deep eutectic lidocaine ibuprofen (Lid·Ibu) was selected as the oil phase, and the imidazolium ionic liquid, 1-hydroxyethyl-3-methylimidazolium chloride ([HOEmim]Cl), was incorporated into the aqueous phase as a transdermal enhancer. The ingredients for the microemulsion in this study were selected, and their ratios were optimized. The optimal microemulsion carrier was composed of 45 wt% of water phase, 45 wt% surfactant phase (containing Tween-80, Span-20, and ethanol (co-surfactant) with the weight ratio of 1:1:1), and 10 wt% Lid·Ibu as the oil phase with artemisinin loading of 1.0 wt% (all the ratios were based on the total weight of microemulsion). Physical properties of this microemulsion, including particle size (41.95 ± 0.85 nm), viscosity (26.65 ± 0.13 mPa·s) and density (1.02 g/cm3), were measured. In-vitro transdermal assay showed a remarkable enhancement of artemisinin transport through the skin, with the permeation flux being 3-fold of the value for isopropyl myristate system in 6 h. The impact of IL-based microemulsion (ILME) on stratum corneum (SC) was investigated by DSC, ATR-FTIR and AFM, which unveiled that the ILME possesses the ability of reducing the SC barrier by disrupting the regular arrangement of keratin, resulting in enhancement of transdermal delivery of artemisinin. This current work suggested that the microemulsion proposed here had an excellent capability to promote the transdermal delivery of artemisinin, which might also be a promising vehicle for the skin delivery of other hydrophobic natural drugs.
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Zhang Y, Zhang K, Wang Z, Hu H, Jing Q, Li Y, Guo T, Feng N. Transcutol® P/Cremophor® EL/Ethyl Oleate-Formulated Microemulsion Loaded into Hyaluronic Acid-Based Hydrogel for Improved Transdermal Delivery and Biosafety of Ibuprofen. AAPS PharmSciTech 2019; 21:22. [PMID: 31823083 DOI: 10.1208/s12249-019-1584-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 11/18/2019] [Indexed: 12/20/2022] Open
Abstract
In the present study, a novel transdermal delivery system was developed and its advantages were demonstrated. Ibuprofen is a commonly used anti-inflammatory, antipyretic, and analgesic drug; however, because of its short biological half-life, it must be frequently administered orally and is highly irritating to the digestive tract. To prepare a novel transdermal delivery system for ibuprofen, a microemulsion was used as a drug carrier and dispersed in a hyaluronic acid-based hydrogel (ME/Gel) to increase percutaneous drug absorption while avoiding gastrointestinal tract irritation. The prepared microemulsion had a droplet size of ~ 90 nm, and the microemulsion had good stability in the hydrogel. Rheological tests revealed that the ME/Gel is a pseudoplastic fluid with decreased viscosity and increased shear rate. It displayed a certain viscoelasticity, and the microemulsion distribution displayed minor effects on the rheological characteristics of the hydrogel system. There was no significant difference in the rheology of the ME/Gel at 25°C and 32°C (normal skin surface temperature), which is beneficial for clinical application. Drug transdermal flux was significantly higher than that of the hydrogel and commercial cream groups (p < 0.01). The 24-h cumulative drug permeation amount was 1.42-fold and 2.52-fold higher than that of the hydrogel and cream groups, respectively. By loading into the ME/Gel, the cytotoxicity of the drug to HaCaT cells was reduced. These results indicate that the prepared ME/Gel can effectively improve transdermal ibuprofen delivery and the biosafety of the drug and could therefore have applicability as a drug delivery system.
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Talaat SM, Elnaggar YSR, Abdalla OY. Lecithin Microemulsion Lipogels Versus Conventional Gels for Skin Targeting of Terconazole: In Vitro, Ex Vivo, and In Vivo Investigation. AAPS PharmSciTech 2019; 20:161. [PMID: 30969396 DOI: 10.1208/s12249-019-1374-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 03/19/2019] [Indexed: 11/30/2022] Open
Abstract
Topical treatment of fungal infections has several superiorities over oral treatment. However, the greatest challenge for dermal delivery is the stratum corneum which is considered an effective barrier for penetration of most antifungal drugs into deeper skin layers. Terconazole (Tr), which is the first marketed triazole antifungal, was reported to be one of the most active azoles against vaginal candidiasis. Nevertheless, our work group is the first to investigate the potential of Tr in the treatment of skin mycosis via integration into lecithin microemulsion-based lipogels (LMBGs). The microemulsion regions of the investigated systems were detected through ternary phase diagrams. The in vitro characterization studies revealed promising physicochemical merits for the selected LMBGs as well as satisfactory in vitro antifungal activity. The current research work was endeavored to investigate the potential of such novel Tr-loaded LMBGs in comparison with conventional gels. Ex vivo permeation and retention studies in addition to in vivo deposition study showed a significant improvement in the permeability of Tr through animal skin from LMBGs compared to other conventional gels. Furthermore, the optimized microemulsion lipogel proved to be safe and a nonirritant to experimental animals through the acute sensitivity study and histological skin examination. Overall, lecithin-based microemulsion lipogels of different composition confirmed their potential as interesting nanocarriers for skin delivery of terconazole compared to current therapy.
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Kaur A, Sharma G, Gupta V, Ratho RK, Katare OP. Enhanced acyclovir delivery using w/o type microemulsion: preclinical assessment of antiviral activity using murine model of zosteriform cutaneous HSV-1 infection. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:346-354. [PMID: 28403666 DOI: 10.1080/21691401.2017.1313262] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The present study was aimed to develop and evaluate a microemulsion-based dermal drug delivery of an antiviral agent, acyclovir. A water-in-oil microemulsion was prepared using isopropyl myristate, Tween 20, Span 20, water and dimethylsulphoxide. It was characterized for drug content, stability, globule size, pH, viscosity and ex vivo permeation through mice skin. In vivo antiviral efficacy of optimized formulation was assessed in female Balb/c mice against herpes simplex virus-I (HSV-I)-induced infection. It was observed that optimized formulation when applied 24-h post-infection could completely inhibit the development of cutaneous herpetic lesions vis-à-vis marketed cream.
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Affiliation(s)
- Amanpreet Kaur
- a Division of Pharmaceutics, University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University , Chandigarh , India
| | - Gajanand Sharma
- a Division of Pharmaceutics, University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University , Chandigarh , India
| | - Vishal Gupta
- a Division of Pharmaceutics, University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University , Chandigarh , India
| | - Radha Kanta Ratho
- b Postgraduate Institute of Medical Education and Research , Chandigarh , India
| | - Om Prakash Katare
- a Division of Pharmaceutics, University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University , Chandigarh , India
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Poomanee W, Chaiyana W, Randall Wickett R, Leelapornpisid P. Stability and solubility improvement of Sompoi ( Acacia concinna Linn.) pod extract by topical microemulsion. Asian J Pharm Sci 2017; 12:386-393. [PMID: 32104350 PMCID: PMC7032130 DOI: 10.1016/j.ajps.2017.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 02/15/2017] [Accepted: 03/07/2017] [Indexed: 11/06/2022] Open
Abstract
The aim of this study was to enhance the solubility and stability of Acacia concinna extract by loading in a microemulsion for topical application. Both physical appearance and biological activities of the extract-loaded microemulsion were determined in comparison with the extract solution. Pseudoternary phase diagrams of three oil types including tea seed oil, grape seed oil, and sesame oil, together with polysorbate 85 or the mixture of polysorbate 85 and sorbitan oleate as surfactants, and absolute ethanol as a co-surfactant were constructed to optimize the microemulsion area. The selected microemulsion was then characterized for droplet size, polydispersity index, and viscosity. Tea seed oil exhibited the highest microemulsion area in the phase diagram because it had the highest unsaturated fatty acid content. The microemulsion composed of tea seed oil (5%), polysorbate 85 (40%), ethanol (20%), and water (35%) exhibited Newtonian flow behavior with the droplet size and polydispersity index of 68.03 ± 1.09 nm and 0.44 ± 0.04, respectively. After 4% w/w of the extract was incorporated into the microemulsion, larger droplets size was observed (239.77 ± 12.69 nm) with a lower polydispersity index (0.37 ± 0.02). After storage in various conditions, both physical appearances and the stability of biological activity of the extract-loaded microemulsion were improved compared to the solution. Therefore, the A. concinna loaded microemulsion may be a promising carrier for further development into a topical formulation and clinical trials for pharmaceutical and cosmeceutical applications are also suggested.
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Affiliation(s)
| | - Wantida Chaiyana
- Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - R Randall Wickett
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, USA
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Dehghani F, Farhadian N, Golmohammadzadeh S, Biriaee A, Ebrahimi M, Karimi M. Preparation, characterization and in-vivo evaluation of microemulsions containing tamoxifen citrate anti-cancer drug. Eur J Pharm Sci 2016; 96:479-489. [PMID: 27693298 DOI: 10.1016/j.ejps.2016.09.033] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 09/24/2016] [Accepted: 09/24/2016] [Indexed: 12/18/2022]
Abstract
The aim of this study was to prepare and characterize a new nanocarrier for oral delivery of tamoxifen citrate (TMC) as a lipophilic oral administrated drug. This drug has low oral bioavailability due to its low aqueous solubility. To enhance the solubility of this drug, the microemulsion system was applied in form of oil-in-water. Sesame oil and Tween 80 were used as drug solvent oil and surfactant, respectively. Two different formulations were prepared for this purpose. The first formulation contained edible glycerin as co-surfactant and the second formulation contained Span 80 as a mixed surfactant. The results of characterization showed that the mean droplet size of drug-free samples was in the range of 16.64-64.62nm with a PDI value of <0.5. In a period of 6months after the preparation of samples, no phase sedimentation was observed, which confirmed the high stability of samples. TMC with a mass ratio of 1% was loaded in the selected samples. No significant size enlargement and drug precipitation were observed 6months after drug loading. In addition, the drug release profile at experimental environments in buffers with pH=7.4 and 5.5 showed that in the first 24h, 85.79 and 100% of the drug were released through the first formulation and 76.63 and 66.42% through the second formulation, respectively. The in-vivo results in BALB/c female mice showed that taking microemulsion form of drug caused a significant reduction in the growth rate of cancerous tumor and weight loss of the mice compared to the consumption of commercial drug tablets. The results confirmed that the new formulation of TMC could be useful for breast cancer treatment.
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Affiliation(s)
- Faranak Dehghani
- Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, P. O. Box 91779-48974, Islamic Republic of Iran
| | - Nafiseh Farhadian
- Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, P. O. Box 91779-48974, Islamic Republic of Iran.
| | - Shiva Golmohammadzadeh
- Pharmacy Department, Mashhad University of Medical Sciences, Mashhad, P.O. Box: 91388-13944, Islamic Republic of Iran
| | - Amir Biriaee
- Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, P. O. Box 91779-48974, Islamic Republic of Iran
| | - Mahmoud Ebrahimi
- Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, P.O. Box: 91388-13944, Islamic Republic of Iran
| | - Mohammad Karimi
- Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, P.O. Box: 91388-13944, Islamic Republic of Iran
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Ruela ALM, Perissinato AG, Lino MEDS, Mudrik PS, Pereira GR. Evaluation of skin absorption of drugs from topical and transdermal formulations. BRAZ J PHARM SCI 2016. [DOI: 10.1590/s1984-82502016000300018] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Kaur A, Goindi S, Katare OP. Formulation, characterisation andin vivoevaluation of lipid-based nanocarrier for topical delivery of diflunisal. J Microencapsul 2016; 33:475-86. [DOI: 10.1080/02652048.2016.1216189] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Innovative polymeric system (IPS) for solvent-free lipophilic drug transdermal delivery via dissolving microneedles. J Control Release 2016; 223:118-125. [DOI: 10.1016/j.jconrel.2015.12.038] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 12/15/2015] [Accepted: 12/23/2015] [Indexed: 12/16/2022]
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Abd E, Namjoshi S, Mohammed YH, Roberts MS, Grice JE. Synergistic Skin Penetration Enhancer and Nanoemulsion Formulations Promote the Human Epidermal Permeation of Caffeine and Naproxen. J Pharm Sci 2016; 105:212-20. [PMID: 26554868 DOI: 10.1002/jps.24699] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 09/18/2015] [Accepted: 09/30/2015] [Indexed: 11/07/2022]
Abstract
We examined the extent of skin permeation enhancement of the hydrophilic drug caffeine and lipophilic drug naproxen applied in nanoemulsions incorporating skin penetration enhancers. Infinite doses of fully characterized oil-in-water nanoemulsions containing the skin penetration enhancers oleic acid or eucalyptol as oil phases and caffeine (3%) or naproxen (2%) were applied to human epidermal membranes in Franz diffusion cells, along with aqueous control solutions. Caffeine and naproxen fluxes were determined over 8 h. Solute solubility in the formulations and in the stratum corneum (SC), as well as the uptake of product components into the SC were measured. The nanoemulsions significantly enhanced the skin penetration of caffeine and naproxen, compared to aqueous control solutions. Caffeine maximum flux enhancement was associated with a synergistic increase in both caffeine SC solubility and skin diffusivity, whereas a formulation-increased solubility in the SC was the dominant determinant for increased naproxen fluxes. Enhancements in SC solubility were related to the uptake of the formulation excipients containing the active compounds into the SC. Enhanced skin penetration in these systems is largely driven by uptake of formulation excipients containing the active compounds into the SC with impacts on SC solubility and diffusivity.
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Duangjit S, Chairat W, Opanasopit P, Rojanarata T, Panomsuk S, Ngawhirunpat T. Development, Characterization and Skin Interaction of Capsaicin-Loaded Microemulsion-Based Nonionic Surfactant. Biol Pharm Bull 2016; 39:601-10. [DOI: 10.1248/bpb.b15-00961] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Sureewan Duangjit
- Faculty of Pharmaceutical Sciences, Ubon Ratchathani University
- Pharmaceutical Development of Green Innovation Group (PDGIG), Faculty of Pharmacy, Silpakorn University
| | - Wisuta Chairat
- Pharmaceutical Development of Green Innovation Group (PDGIG), Faculty of Pharmacy, Silpakorn University
- Faculty of Pharmacy, Silpakorn University
| | - Praneet Opanasopit
- Pharmaceutical Development of Green Innovation Group (PDGIG), Faculty of Pharmacy, Silpakorn University
- Faculty of Pharmacy, Silpakorn University
| | - Theerasak Rojanarata
- Pharmaceutical Development of Green Innovation Group (PDGIG), Faculty of Pharmacy, Silpakorn University
- Faculty of Pharmacy, Silpakorn University
| | - Suwannee Panomsuk
- Pharmaceutical Development of Green Innovation Group (PDGIG), Faculty of Pharmacy, Silpakorn University
- Faculty of Pharmacy, Silpakorn University
| | - Tanasait Ngawhirunpat
- Pharmaceutical Development of Green Innovation Group (PDGIG), Faculty of Pharmacy, Silpakorn University
- Faculty of Pharmacy, Silpakorn University
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Metwally AA, Hathout RM. Replacing microemulsion formulations experimental solubility studies with in-silico methods comprising molecular dynamics and docking experiments. Chem Eng Res Des 2015. [DOI: 10.1016/j.cherd.2015.09.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Microemulsion-based antifungal gel of luliconazole for dermatophyte infections: formulation, characterization and efficacy studies. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2015. [DOI: 10.1007/s40005-015-0209-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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25
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Mostafa DM, Abd El-Alim SH, Asfour MH, Al-Okbi SY, Mohamed DA, Awad G. Transdermal nanoemulsions of Foeniculum vulgare Mill. essential oil: Preparation, characterization and evaluation of antidiabetic potential. J Drug Deliv Sci Technol 2015. [DOI: 10.1016/j.jddst.2015.06.021] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Coneac G, Vlaia V, Olariu I, Muţ AM, Anghel DF, Ilie C, Popoiu C, Lupuleasa D, Vlaia L. Development and evaluation of new microemulsion-based hydrogel formulations for topical delivery of fluconazole. AAPS PharmSciTech 2015; 16:889-904. [PMID: 25591952 DOI: 10.1208/s12249-014-0275-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 12/16/2014] [Indexed: 11/30/2022] Open
Abstract
The aim of the present investigation was to develop and evaluate microemulsion-loaded hydrogels (MEHs) for the topical delivery of fluconazole (FZ). The solubility of FZ in oils, surfactants and cosurfactants was evaluated to identify the components of the microemulsion. The pseudo-ternary phase diagrams were constructed using the novel phase diagram by micro-plate dilution method. Carbopol EDT 2020 was used to convert FZ-loaded microemulsions into gel form without affecting their structure. The selected microemulsions were assessed for globule size, zeta potential and polidispersity index. Besides this, the microemulsion-loaded hydrogel (MEH) formulations were evaluated for drug content, pH, rheological properties and in vitro drug release through synthetic membrane and excised pig ear skin in comparison with a conventional hydrogel. The optimised MEH FZ formulations consisting of FZ 2%, Transcutol P 11.5% and 11%, respectively, as oil phase, Lansurf SML 20-propyleneglycol 52% and 50%, respectively, as surfactant-cosurfactant (2:1), Carbopol EDT 2020 1.5% as gelling agent and water 34.5% and 37%, respectively, showed highest flux values and high release rate values, and furthermore, they had low surfactant content. The in vitro FZ permeation through synthetic membrane and excised pig ear skin from the studied MEHs was best described by the zero-order and first-order models. Finally, the optimised MEH FZ formulations showed similar or slightly higher antifungal activity as compared to that of conventional hydrogel and Nizoral® cream, respectively. The results suggest the potential use of developed MEHs as vehicles for topical delivery of FZ, encouraging further in vitro and in vivo evaluation.
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Pascoa H, Diniz DGA, Florentino IF, Costa EA, Bara MTF. Microemulsion based on Pterodon emarginatus oil and its anti-inflammatory potential. BRAZ J PHARM SCI 2015. [DOI: 10.1590/s1984-82502015000100013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This article reports the development of a pharmaceutical product containing vegetable actives from a Brazilian medicinal plant. The possibility of forming a microemulsion using Pterodon emarginatus ("sucupira") oil was evaluated and the anti-inflammatory potential of this microemulsion was also examined. A formulation was developed using P. emarginatus oil, a mixture of ethoxylated Castor Oil (Ultramone(r) R-540/propylene glycol 2:1) (surfactant/cosurfactant) and distilled water at a ratio of 10:15:75, respectively. The microemulsion which was selected was then subjected to the preliminary stability test and analyzed in terms of average diameter of droplets, pH, zeta potential, and polydispersity index, on the 1st, 7th, 15th, and 30th days after preparation and stored at different temperatures (5 ± 2 °C, 25 ± 2 °C, and 40 ± 2 °C). The anti-inflammatory in vivo activity of both oil and formulation were evaluated, using the experimental model of croton oil-induced ear edema. The preliminary stability test showed that the microemulsion stored at 5 and 25 °C retained its original features throughout the 30-day period. The anti-inflammatory potential of both oil and formulation was shown to be statistically significant (p < 0.001), when compared to the control group, however, the microemulsion proved to be more effective (p < 0.05) than the oil when applied directly to the ear.
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Figueiredo KA, Medeiros SC, Neves JKO, da Silva JA, da Rocha Tomé A, Carvalho ALM, de Freitas RM. In vivo evaluation of anticonvulsant and antioxidant effects of phenobarbital microemulsion for transdermal administration in pilocarpine seizure rat model. Pharmacol Biochem Behav 2015; 131:6-12. [PMID: 25620677 DOI: 10.1016/j.pbb.2015.01.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 12/12/2014] [Accepted: 01/13/2015] [Indexed: 11/28/2022]
Abstract
This study aimed to evaluate a microemulsion system (ME) containing phenobarbital in epilepsy model induced by pilocarpine in rats and to oxidative stress and histologic lesions in hippocampus. The microemulsion was applied to the shaved back of Wistar rats. The animals were divided into the following groups: control group (P400); ME50 40mg/kg, topically-t.p.; ME100, 40mg/kg, t.p.; EM50, 40mg/kg, t.p.; phenobarbital solution 40mg/kg (PS), oral. After 60min, behavioral changes were evaluated for 1h in the model of epileptical crisis induced by pilocarpine. Phenobarbital in microemulsion was able to increase the latency for status epilepticus (SE) (p<0.05), decrease the number of epileptical crisis (ME50: p<0.001; ME100: p<0.01) and decrease mortality rate by 80% compared to P400. In EM50 and PS groups, deaths were decreased by 53.3% and 100% respectively. The ME50 and ME100 groups were able to reduce oxidative stress in experimental animals when compared to the P400. The microemulsion was still capable of reducing neuronal damage in the hippocampal areas. The results of this study come in an innovative way, demonstrating the ability of transdermal ME50 and ME100 to reduce pilocarpine-induced epileptical crisis, oxidative stress, besides neuronal damages.
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Affiliation(s)
- Kayo Alves Figueiredo
- Department of Health, Federal Institute of Education, Science and Technology of Piauí, Campus Teresina Central, Teresina, PI, Brazil
| | - Shirlene Cesário Medeiros
- Laboratory of Experimental Neurochemistry Research, Federal University of Piauí, Teresina, PI, Brazil
| | | | | | - Adriana da Rocha Tomé
- Laboratory of Physiology, Faculty of Veterinary, State University of Ceará, Campus Itaperi, Fortaleza, CE, Brazil
| | | | - Rivelilson Mendes de Freitas
- Laboratory of Experimental Neurochemistry Research, Federal University of Piauí, Teresina, PI, Brazil; College of Pharmacy, Federal University of Piauí, Campus Minister Petronio Portela, Teresina, PI, Brazil.
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Zhao L, Wang Y, Zhai Y, Wang Z, Liu J, Zhai G. Ropivacaine loaded microemulsion and microemulsion-based gel for transdermal delivery: Preparation, optimization, and evaluation. Int J Pharm 2014; 477:47-56. [DOI: 10.1016/j.ijpharm.2014.10.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 09/30/2014] [Accepted: 10/03/2014] [Indexed: 01/31/2023]
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Kiss L, Hellinger É, Pilbat A, Kittel Á, Török Z, Füredi A, Szakács G, Veszelka S, Sipos P, Ózsvári B, Puskás LG, Vastag M, Szabó‐Révész P, Deli MA. Sucrose Esters Increase Drug Penetration, But Do Not Inhibit P‐Glycoprotein in Caco‐2 Intestinal Epithelial Cells. J Pharm Sci 2014; 103:3107-19. [DOI: 10.1002/jps.24085] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Revised: 06/14/2014] [Accepted: 06/16/2014] [Indexed: 01/11/2023]
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Sahoo S, Pani NR, Sahoo SK. Microemulsion based topical hydrogel of sertaconazole: Formulation, characterization and evaluation. Colloids Surf B Biointerfaces 2014; 120:193-9. [DOI: 10.1016/j.colsurfb.2014.05.022] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 04/26/2014] [Accepted: 05/14/2014] [Indexed: 11/30/2022]
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Shen LN, Zhang YT, Wang Q, Xu L, Feng NP. Preparation and evaluation of microemulsion-based transdermal delivery of total flavone of rhizoma arisaematis. Int J Nanomedicine 2014; 9:3453-64. [PMID: 25092976 PMCID: PMC4113406 DOI: 10.2147/ijn.s66524] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The aims of the present study were to investigate the skin permeation and cellular uptake of a microemulsion (ME) containing total flavone of rhizoma arisaematis (TFRA), and to evaluate its effects on skin structure. Pseudo-ternary phase diagrams were constructed to evaluate ME regions with various surfactants and cosurfactants. Eight formulations of oil-in-water MEs were selected as vehicles, and in vitro skin-permeation experiments were performed to optimize the ME formulation and to evaluate its permeability, in comparison to that of an aqueous suspension. Laser scanning confocal microscopy and fluorescent-activated cell sorting were used to explore the cellular uptake of rhodamine 110-labeled ME in human epidermal keratinocytes (HaCaT) and human embryonic skin fibroblasts (CCC-ESF-1). The structure of stratum corneum treated with ME was observed using a scanning electron microscope. Furthermore, skin irritation was tested to evaluate the safety of ME. ME formulated with 4% ethyl oleate (weight/weight), 18% Cremophor EL® (weight/weight), and 18% Transcutol® P, with 1% Azone to enhance permeation, showed good skin permeability. ME-associated transdermal fluxes of schaftoside and isoschaftoside, two major effective constituents of TFRA, were 3.72-fold and 5.92-fold higher, respectively, than those achieved using aqueous suspensions. In contrast, in vitro studies revealed that uptake by HaCaT and CCC-ESF-1 cells was lower with ME than with an aqueous suspension. Stratum corneum loosening and shedding was observed in nude mouse skin treated with ME, although ME produced no observable skin irritation in rabbits. These findings indicated that ME enhanced transdermal TFRA delivery effectively and showed good biocompatibility with skin tissue.
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Affiliation(s)
- Li-Na Shen
- Department of Pharmaceutical Sciences, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Yong-Tai Zhang
- Department of Pharmaceutical Sciences, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Qin Wang
- Department of Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Ling Xu
- Department of Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Nian-Ping Feng
- Department of Pharmaceutical Sciences, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
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Topical delivery of clobetasol propionate loaded microemulsion based gel for effective treatment of vitiligo – Part II: Rheological characterization and in vivo assessment through dermatopharmacokinetic and pilot clinical studies. Colloids Surf B Biointerfaces 2014; 119:145-53. [DOI: 10.1016/j.colsurfb.2014.02.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 12/31/2013] [Accepted: 02/04/2014] [Indexed: 11/20/2022]
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Sahoo S, Pani NR, Sahoo SK. Effect of microemulsion in topical sertaconazole hydrogel: in vitro and in vivo study. Drug Deliv 2014; 23:338-45. [DOI: 10.3109/10717544.2014.914601] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Susijit Sahoo
- Department of Pharmaceutics, Gayatri College of Pharmacy, Sambalpur, Odisha, India and
| | - Nihar Ranjan Pani
- Department of Pharmaceutics, Gayatri College of Pharmacy, Sambalpur, Odisha, India and
| | - Sunit Kumar Sahoo
- University Department of Pharmaceutical Sciences, Utkal University, Bhubaneswar, Odisha, India
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Mostafa DM, Ammar NM, Basha M, Hussein RA, El Awdan S, Awad G. Transdermal microemulsions ofBoswellia carteriiBird: formulation, characterization andin vivoevaluation of anti-inflammatory activity. Drug Deliv 2014; 22:748-56. [DOI: 10.3109/10717544.2014.898347] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zhang X, Wu Y, Hong Y, Zhu X, Lin L, Lin Q. Preparation and evaluation ofdl-praeruptorin A microemulsion based hydrogel for dermal delivery. Drug Deliv 2014; 22:757-64. [DOI: 10.3109/10717544.2014.898713] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ren Q, Deng C, Meng L, Chen Y, Chen L, Sha X, Fang X. In vitro, ex vivo, and in vivo evaluation of the effect of saturated fat acid chain length on the transdermal behavior of ibuprofen-loaded microemulsions. J Pharm Sci 2014; 103:1680-91. [PMID: 24700251 DOI: 10.1002/jps.23958] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 02/26/2014] [Accepted: 03/06/2014] [Indexed: 11/07/2022]
Abstract
In this study, the effect of the saturated fatty acid (FA) chain length in the oil phase on the behavior of Ibuprofen (IBU)-loaded transdermal microemulsion (ME) was evaluated in vitro, ex vivo, and in vivo. Three oils classified as long (LFA), medium (MFA), and short (SFA) chain length oils, Cremophor RH40 (surfactant) and Transcutol P (cosurfactant) were selected after experimental optimization. The physicochemical properties of ME were characterized, including IBU solubility in excipients, pseudo-ternary phase diagram construction, particle size, zeta potential, viscosity, and stability. Permeation flux and residual amount of IBU ex vivo using Franz cell system occurred in the following order: MFA-based ME > LFA-based ME > SFA-based ME, which correlated well with the results of confocal scanning laser microscopy study and the in vivo retention study. The results of in vitro cytotoxicity study and skin irritation tests measured by differential scanning calorimetry were ranked in the following order: LFA-based ME > MFA-based ME > SFA-based ME. Moreover, MFA-based ME has the highest analgesic activity among all the treatment groups. MFA was found to be an optimal oil phase with appropriate FA chain length for IBU-loaded transdermal ME, which exhibited excellent physicochemical properties, low toxicity, and good permeability profile.
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Affiliation(s)
- Qiuyue Ren
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, 201203, China
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Asman G, Akçay E. Effect of Membrane Preparation Methods on the Release of Theophylline through CA Membranes atIn-VitroConditions. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2014. [DOI: 10.1080/10601325.2014.882698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kalaitzaki A, Poulopoulou M, Xenakis A, Papadimitriou V. Surfactant-rich biocompatible microemulsions as effective carriers of methylxanthine drugs. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.05.055] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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40
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Amphotericin B topical microemulsion: formulation, characterization and evaluation. Colloids Surf B Biointerfaces 2014; 116:351-8. [PMID: 24521698 DOI: 10.1016/j.colsurfb.2014.01.014] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 01/06/2014] [Accepted: 01/09/2014] [Indexed: 11/22/2022]
Abstract
The present studies were designed to develop a microemulsion (ME) formulation of Amphotericin B (Amp B) for the treatment of invasive fungal infections. The oil phase was selected on the basis of drug solubility whereas the surfactant and co-surfactant were screened and selected on the basis of their oil solubilizing capacity as well as their efficiency to form ME. Pseudo-ternary phase diagrams were constructed and on the basis of ME existence ranges various formulations of Amp B were developed. The influence of surfactant and co-surfactant mass ratio (Smix) on the ME formation and permeation of ME through excised rat skin was studied. The optimized formulation (ME 7) consisting of 0.1% (w/w) Amp B, 5% (w/w) Isopropyl Myristate and 35% (w/w) Smix (3:1, Tween 80 and Propylene glycol), has shown a globule size of 84.20 ± 2.13 nm, a polydispersity index of 0.164 ± 0.031, pH 7.36 ± 0.02 and conductance of 229.3 ± 1.95 μS. ME 7 exhibited 2-fold higher drug permeation as compared to plain drug solution. Besides this, the formulation was also evaluated for drug content, stability, skin retention, skin sensitivity and anti-fungal activity. In vitro anti-fungal activity in Trichophyton rubrum fungal species have shown that ME7 has higher zone of inhibition and the formulation was found stable at 2-8°C and at room temperature (25 ± 2°C) for the period of three months. The results indicate that, the investigated ME may be used as a promising alternative for Amp B therapy.
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Abstract
Microemulsions are thermodynamically stable, optically transparent isotropic solutions of oil and water successfully formulated by using a combination of suitable surfactant and cosurfactant. The solubilization power of microemulsions for lipophilic, hydrophilic and amphiphilic solutes form a viable approach for enhancing the bioavailability of hydrophobic drugs and percutaneous permeation of poorly permeable drugs, mainly due to the large area per volume ratio available for mass transfer. Microemulsions have emerged as novel vehicles for drug delivery due to their versatile applications. They allow sustained release for topical, oral, nasal, intravenous, ocular, parenteral and other administration routes of drugs. They also offer a relevant application platform for improving target specificity, therapeutic activity, and reducing toxicity of drugs.
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Microneedle-Assisted Permeation of Lidocaine Carboxymethylcellulose with Gelatine Co-polymer Hydrogel. Pharm Res 2013; 31:1170-84. [DOI: 10.1007/s11095-013-1240-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Accepted: 10/20/2013] [Indexed: 12/15/2022]
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Mostafa DM, Ammar NM, Abd El-Alim SH, El-anssary AA. Transdermal microemulsions ofGlycyrrhiza glabraL.: characterization, stability and evaluation of antioxidant potential. Drug Deliv 2013; 21:130-9. [DOI: 10.3109/10717544.2013.834419] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tuncay S, Özer Ö. Investigation of different emulsion systems for dermal delivery of nicotinamide. Pharm Dev Technol 2013; 18:1417-23. [DOI: 10.3109/10837450.2012.734514] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Thakkar PJ, Madan P, Lin S. Transdermal delivery of diclofenac using water-in-oil microemulsion: formulation and mechanistic approach of drug skin permeation. Pharm Dev Technol 2013; 19:373-84. [PMID: 23634780 DOI: 10.3109/10837450.2013.788658] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The objective of the present investigation was to enhance skin permeation of diclofenac using water-in-oil microemulsion and to elucidate its skin permeation mechanism. The w/o microemulsion formulations were selected based on constructed pseudoternary phase diagrams depending on water solubilization capacity and thermodynamic stability. These formulations were also subjected to physical characterization based on droplet size, viscosity, pH and conductivity. Permeation of diclofenac across rat skin using side-by-side permeation cells from selected w/o microemulsion formulations were evaluated and compared with control formulations. The selected w/o microemulsion formulations were thermodynamically stable, and incorporation of diclofenac sodium into microemulsion did not affect the phase behavior of system. All microemulsion formulations had very low viscosity (11-17 cps) and droplet size range of 30-160 nm. Microemulsion formulations exhibited statistically significant increase in diclofenac permeation compared to oily solution, aqueous solution and oil-Smix solution. Higher skin permeation of diclofenac was observed with low Smix concentration and smaller droplet size. Increase in diclofenac loading in aqueous phase decreased the partition of diclofenac. Diclofenac from the oil phase of microemulsion could directly partition into skin, while diclofenac from the aqueous droplets was carried through skin by carrier effect.
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Affiliation(s)
- Priyanka J Thakkar
- College of Pharmacy and Health Sciences, St. John's University , Queens, NY , USA
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Ling Y, Yu M, Guo F, Li N, Tan FP. Synergistic effect of mixed cosurfactants on transdermal delivery of indomethacin from O/W microemulsion. Chem Res Chin Univ 2013. [DOI: 10.1007/s40242-013-2189-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Al Abood RM, Talegaonkar S, Tariq M, Ahmad FJ. Microemulsion as a tool for the transdermal delivery of ondansetron for the treatment of chemotherapy induced nausea and vomiting. Colloids Surf B Biointerfaces 2013; 101:143-51. [DOI: 10.1016/j.colsurfb.2012.06.015] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Revised: 05/08/2012] [Accepted: 06/19/2012] [Indexed: 12/01/2022]
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Sasivimolphan P, Lipipun V, Ritthidej G, Chitphet K, Yoshida Y, Daikoku T, Sritularak B, Likhitwitayawuid K, Pramyothin P, Hattori M, Shiraki K. Microemulsion-based oxyresveratrol for topical treatment of herpes simplex virus (HSV) infection: physicochemical properties and efficacy in cutaneous HSV-1 infection in mice. AAPS PharmSciTech 2012; 13:1266-75. [PMID: 22996670 DOI: 10.1208/s12249-012-9828-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Accepted: 07/16/2012] [Indexed: 11/30/2022] Open
Abstract
The physicochemical properties of the optimized microemulsion and the permeating ability of oxyresveratrol in microemulsion were evaluated, and the efficacy of oxyresveratrol microemulsion in cutaneous herpes simplex virus type 1 (HSV-1) infection in mice was examined. The optimized microemulsion was composed of 10% w/w of isopropyl myristate, 35% w/w of Tween 80, 35% w/w of isopropyl alcohol, and 20% w/w of water. The mean particle diameter was 9.67 ± 0.58 nm, and the solubility of oxyresveratrol in the microemulsion was 196.34 ± 0.80 mg/ml. After accelerated and long-term stability testing, the microemulsion base and oxyresveratrol-loaded microemulsion were stable. The cumulative amount of oxyresveratrol permeating through shed snake skin from microemulsion at 6 h was 93.04 times compared to that of oxyresveratrol from Vaseline, determined at 20% w/w concentration. In cutaneous HSV-1 infection in mice, oxyresveratrol microemulsion at 20%, 25%, and 30% w/w, topically applied five times daily for 7 days after infection, was significantly effective in delaying the development of skin lesions and protecting from death (p < 0.05) compared with the untreated control. Oxyresveratrol microemulsion at 25% and 30% w/w was significantly more effective than that of 30% w/w of oxyresveratrol in Vaseline (p < 0.05) and was as effective as 5% w/w of acyclovir cream, topically applied five times daily (p > 0.05). These results demonstrated that topical oxyresveratrol microemulsion at 20-30% w/w was suitable for cutaneous HSV-1 mouse infection.
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Sandig AG, Campmany ACC, Campos FF, Villena MJM, Naveros BC. Transdermal delivery of imipramine and doxepin from newly oil-in-water nanoemulsions for an analgesic and anti-allodynic activity: development, characterization and in vivo evaluation. Colloids Surf B Biointerfaces 2012; 103:558-65. [PMID: 23261580 DOI: 10.1016/j.colsurfb.2012.10.061] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 10/18/2012] [Accepted: 10/19/2012] [Indexed: 10/27/2022]
Abstract
Antidepressants have been considered by their analgesic activity in numerous studies, and specifically tricyclic antidepressants to possess the greatest efficacy. Imipramine and doxepin have been reported to exhibit local anaesthetic properties. In order to investigate their cutaneous analgesic effect after topical application a nanoemulsion vehicle was developed. This nanoemulsion is composed of propilenglicol, Transcutol, water, Labrasol, Plurol Oleique, isostearyl isostearate, oleic acid, and d-limonene. The final concentration of imipramine or doxepin in the nanoemulsion system was 3% (w/w). The nanoemulsions were characterized by pH, viscosity, droplet size, polydispersity index and finally, a morphological and structural examination was carried out by using transmission electron microscopy. Furthermore, the present work also reports stability studies on the nanoemulsion formulations to evaluate the integrity of the formulation; these indicate that formulations are stable for a period of three months. Moreover ex vivo studies were performed to evaluate permeation behaviour through human skin and predict plasma concentrations concluding that topically applied imipramine and doxepin loaded nanoemulsions were safe for a local effect. Similarly, the in vivo analgesic and anti-allodynic activity in rats was evaluated being stronger for the doxepin loaded nanoemulsion. This study demonstrated that nanoemulsion containing doxepin could be promising as an alternative analgesic therapy with a potential clinical application.
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Affiliation(s)
- A Gimeno Sandig
- Animal Facility, Bellvitge Health Sciences Campus, University of Barcelona, Spain
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50
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Approaches for breaking the barriers of drug permeation through transdermal drug delivery. J Control Release 2012; 164:26-40. [DOI: 10.1016/j.jconrel.2012.09.017] [Citation(s) in RCA: 327] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Revised: 09/24/2012] [Accepted: 09/25/2012] [Indexed: 01/11/2023]
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