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Pușcașu C, Zanfirescu A, Negreș S. Recent Progress in Gels for Neuropathic Pain. Gels 2023; 9:gels9050417. [PMID: 37233008 DOI: 10.3390/gels9050417] [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: 03/30/2023] [Revised: 05/02/2023] [Accepted: 05/10/2023] [Indexed: 05/27/2023] Open
Abstract
Neuropathic pain is a complex and debilitating condition that affects millions of people worldwide. While several treatment options are available, they often have limited efficacy and are associated with adverse effects. In recent years, gels have emerged as a promising option for the treatment of neuropathic pain. Inclusion of various nanocarriers, such as cubosomes and niosomes, into gels results in pharmaceutical forms with higher drug stability and increased drug penetration into tissues compared to products currently marketed for the treatment of neuropathic pain. Furthermore, these compounds usually provide sustained drug release and are biocompatible and biodegradable, which makes them a safe option for drug delivery. The purpose of this narrative review was to provide a comprehensive analysis of the current state of the field and identify potential directions for future research in the development of effective and safe gels for the treatment of neuropathic pain, ultimately improving the quality of life for patients suffering from neuropathic pain.
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Affiliation(s)
- Ciprian Pușcașu
- Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania
| | - Anca Zanfirescu
- Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania
| | - Simona Negreș
- Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania
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Oz M, Lorke DE, Howarth FC. Transient receptor potential vanilloid 1 (TRPV1)-independent actions of capsaicin on cellular excitability and ion transport. Med Res Rev 2023. [PMID: 36916676 DOI: 10.1002/med.21945] [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: 06/14/2022] [Revised: 01/17/2023] [Accepted: 02/26/2023] [Indexed: 03/15/2023]
Abstract
Capsaicin is a naturally occurring alkaloid derived from chili pepper that is responsible for its hot pungent taste. Capsaicin is known to exert multiple pharmacological actions, including analgesia, anticancer, anti-inflammatory, antiobesity, and antioxidant effects. The transient receptor potential vanilloid subfamily member 1 (TRPV1) is the main receptor mediating the majority of the capsaicin effects. However, numerous studies suggest that the TRPV1 receptor is not the only target for capsaicin. An increasing number of studies indicates that capsaicin, at low to mid µM ranges, not only indirectly through TRPV1-mediated Ca2+ increases, but also directly modulates the functions of voltage-gated Na+ , K+ , and Ca2+ channels, as well as ligand-gated ion channels and other ion transporters and enzymes involved in cellular excitability. These TRPV1-independent effects are mediated by alterations of the biophysical properties of the lipid membrane and subsequent modulation of the functional properties of ion channels and by direct binding of capsaicin to the channels. The present study, for the first time, systematically categorizes this diverse range of non-TRPV1 targets and discusses cellular and molecular mechanisms mediating TRPV1-independent effects of capsaicin in excitable, as well as nonexcitable cells.
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Affiliation(s)
- Murat Oz
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Kuwait University, Safat, Kuwait
| | - Dietrich E Lorke
- Department of Anatomy and Cellular Biology, College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates.,Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Frank C Howarth
- Department of Physiology, College of Medicine and Health Sciences, UAE University, Al Ain, United Arab Emirates
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3
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Schäfer RC, Sohn A, Kersten A, Amr A, Held M, Wenger A. Quantification of Dermal Microcirculatory Changes after Topical Administration of Capsaicin: A Randomized Placebo-Controlled Study in 46 Subjects. J INVEST SURG 2022; 35:1673-1678. [PMID: 35836365 DOI: 10.1080/08941939.2022.2091694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
BACKGROUND Dermal blood flow is crucial for wound healing and survival of flaps in dermatologic surgery. To improve flap viability in cases of compromised perfusion topical agents can easily be applied. The aim of this placebo-controlled study was to characterize changes of DBF in healthy subjects by quantitatively assessing perfusion dynamics after application of capsaicin to establish a reference for measurements at injured sites. METHODS In 46 healthy subjects perfusion dynamics after local application with capsaicin and placebo was noninvasively assessed, determining cutaneous oxygen saturation, relative hemoglobin count and blood flow using an Oxygen-to-See device. RESULTS A significant raise in superficial (162% p = 0.000) and deep (144%, p = 0.000) skin oxygenation after 30 min was provoked. A highly significant raise in measurements of flow and velocity was present in superficial (523%, p = 0.000) and deep (242%, p = 0.000) sites. CONCLUSION With the introduced model applied to observe changes in parameters of dermal blood flow in healthy subjects the authors can reliably monitor effects of topically administered capsaicin. This baseline can be used as reference for further studies in the settings of endangered flap survival or critically perfused wounds as has been proven in animal studies.
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Affiliation(s)
- Ruth Christine Schäfer
- Department of Hand, Plastic and Reconstructive Surgery, BG Unfallklinik Tübingen, Eberhard Karls University Tuebingen, Tuebingen, Germany
| | - Anna Sohn
- Department of Dermatology, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Anabel Kersten
- Department of Hand, Plastic and Reconstructive Surgery, BG Unfallklinik Tübingen, Eberhard Karls University Tuebingen, Tuebingen, Germany
| | - Amro Amr
- Department of Hand, Plastic and Reconstructive Surgery, BG Unfallklinik Tübingen, Eberhard Karls University Tuebingen, Tuebingen, Germany
| | - Manuel Held
- Department of Hand, Plastic and Reconstructive Surgery, BG Unfallklinik Tübingen, Eberhard Karls University Tuebingen, Tuebingen, Germany
| | - Andrea Wenger
- Department of Hand, Plastic and Reconstructive Surgery, BG Unfallklinik Tübingen, Eberhard Karls University Tuebingen, Tuebingen, Germany
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Capsaicin for Weight Control: “Exercise in a Pill” (or Just Another Fad)? Pharmaceuticals (Basel) 2022; 15:ph15070851. [PMID: 35890150 PMCID: PMC9316879 DOI: 10.3390/ph15070851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 01/27/2023] Open
Abstract
Medical management of obesity represents a large unmet clinical need. Animal experiments suggest a therapeutic potential for dietary capsaicin, the pungent ingredient in hot chili peppers, to lose weight. This is an attractive theory since capsaicin has been a culinary staple for thousands of years and is generally deemed safe when consumed in hedonically acceptable, restaurant-like doses. This review critically evaluates the available experimental and clinical evidence for and against capsaicin as a weight control agent and comes to the conclusion that capsaicin is not a magic “exercise in a pill”, although there is emerging evidence that it may help restore a healthy gut microbiota.
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Formulation and evaluation of polyethylene glycol/Xanthan gum-co-poly (Acrylic acid) interpenetrating network for controlled release of venlafaxine. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04098-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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6
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Teaima MH, Badawi NM, Attia DA, El-Nabarawi MA, Elmazar MM, Mousa SA. Efficacy of pomegranate extract loaded solid lipid nanoparticles transdermal emulgel against Ehrlich ascites carcinoma. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2021; 39:102466. [PMID: 34587542 DOI: 10.1016/j.nano.2021.102466] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 08/02/2021] [Indexed: 01/16/2023]
Abstract
The purpose of this work was to incorporate an optimized pomegranate extract loaded solid lipid nanoparticles (PE-SLNs) formula in a transdermal emulgel to evaluate its anticancer effect. The prepared emulgel formulae were evaluated for their physicochemical properties. An ex vivo permeation study was done through mouse skin and the kinetic parameters were determined. Kinetic data showed that the ex vivo permeation of PE from SLNs transdermal emulgel through mouse skin followed non-Fickian diffusion transport. Further, in vivo study was done by applying the optimized PE-SLNs transdermal emulgel on mice skin bearing a solid form of Ehrlich ascites carcinoma (EAC) as well as free PE, control, placebo, and standard groups for comparison. In addition, histopathological examinations of the samples obtained from the EAC mice model were performed. The results proved that application of the selected PE-SLNs emulgel formulation on the mice skin bearing solid tumor revealed statistically significant anticancer effects.
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Affiliation(s)
- Mahmoud H Teaima
- Department of Pharmaceutics and Industrial Pharmacy, Cairo University, Cairo, Egypt
| | - Noha M Badawi
- Department of Pharmaceutics, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Dalia A Attia
- Department of Pharmaceutics, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | | | - Mohey M Elmazar
- Department of Pharmacology, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Shaker A Mousa
- The Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselaer, NY, USA.
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Goci E, Haloci E, Di Stefano A, Chiavaroli A, Angelini P, Miha A, Cacciatore I, Marinelli L. Evaluation of In Vitro Capsaicin Release and Antimicrobial Properties of Topical Pharmaceutical Formulation. Biomolecules 2021; 11:biom11030432. [PMID: 33804191 PMCID: PMC8001808 DOI: 10.3390/biom11030432] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/02/2021] [Accepted: 03/09/2021] [Indexed: 01/11/2023] Open
Abstract
(1) Background: Capsaicin is the main capsaicinoid of the Capsicum genus and it is responsible for the pungent taste. Medical uses of the fruits of chili peppers date from the ancient time until nowadays. Most of all, they are used topically as analgesic in anti-inflammatory diseases as rheumatism, arthritis and in diabetic neuropathy. Reports state that the Capsicum genus, among other plant genera, is a good source of antimicrobial and antifungal compounds. The aim of this study was the preparation of a pharmaceutical Carbopol-based formulation containing capsaicin and the evaluation of its in vitro release and antimicrobial and antifungal properties. (2) Methods: It was first stabilized with an extraction method from the Capsicum annuum fruits with 98% ethanol and then the identification and determination of Capsaicin in this extract was realized by HPLC. (3) Results and Conclusions: Rheological analyses revealed that the selected formulation exhibited a pseudo-plastic behavior. In vitro release studies of capsaicin from a Carbopol-based formulation reported that approximately 50% of capsaicin was release within 52 h. Additionally, the Carbopol-based formulation significantly increased the antimicrobial effects of capsaicin towards all tested bacteria and fungi strains.
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Affiliation(s)
- Enkelejda Goci
- Pharmacotherapeutic Research Center, Faculty of Medical Sciences, Aldent University, 1001 Tirana, Albania;
- Correspondence:
| | - Entela Haloci
- Department of Pharmacy, Faculty of Medicine, University of Medicine, 1001 Tirana, Albania;
| | - Antonio Di Stefano
- Department of Pharmacy, University of “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (A.D.S.); (A.C.); (I.C.); (L.M.)
| | - Annalisa Chiavaroli
- Department of Pharmacy, University of “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (A.D.S.); (A.C.); (I.C.); (L.M.)
| | - Paola Angelini
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06100 Perugia, Italy;
| | - Ajkuna Miha
- Pharmacotherapeutic Research Center, Faculty of Medical Sciences, Aldent University, 1001 Tirana, Albania;
| | - Ivana Cacciatore
- Department of Pharmacy, University of “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (A.D.S.); (A.C.); (I.C.); (L.M.)
| | - Lisa Marinelli
- Department of Pharmacy, University of “G. d’Annunzio” Chieti-Pescara, 66100 Chieti, Italy; (A.D.S.); (A.C.); (I.C.); (L.M.)
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Gebreel RM, Edris NA, Elmofty HM, Tadros MI, El-Nabarawi MA, Hassan DH. Development and Characterization of PLGA Nanoparticle-Laden Hydrogels for Sustained Ocular Delivery of Norfloxacin in the Treatment of Pseudomonas Keratitis: An Experimental Study. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:399-418. [PMID: 33584095 PMCID: PMC7875077 DOI: 10.2147/dddt.s293127] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 01/19/2021] [Indexed: 12/20/2022]
Abstract
Aim Norfloxacin (NFX) has low ocular bioavailability. The current work aimed to develop NFX-loaded nanoparticle (NP)-laden hydrogels to improve the ocular potential of NFX, minimize the need for frequent instillations and lower undesirable side effects. Methods NFX-loaded NPs were developed via the double-emulsion/solvent evaporation technique, according to 21.41 full factorial design, using two types of polylactic-co-glycolic acid (PLGA) polymer and four (drug: polymer) ratios. NPs were evaluated for particle size (PS), polydispersity index (PDI), zeta potential (ZP), drug entrapment efficiency percentage (EE%), drug percentage released after 30 min (Q30min) and 12 hours (Q12h), drug percentage permeated through goat corneas after 30 min (P30min) and 12 hours (P12h) and morphology. Two formulae were statistically selected and incorporated into hydroxypropyl methylcellulose (HPMC)-based hydrogels; G1 – G4. The latter systems were evaluated for appearance, clarity, pH, spreadability, rheology, drug percentages released, drug percentages permeated, antimicrobial activity against Pseudomonas aeruginosa, and histopathological changes. Results The selected NPs (NP2 and NP6) were spherical in shape and possessed suitable PS (392.02 nm and 190.51 nm) and PDI (0.17 and 0.18), high magnitude of ZP (−30.43 mV and −33.62 mV), high EE% (79.24% and 91.72%), low Q30min (10.96% and 16.65%) and P30min (17.39% and 21.05%) and promising Q12h (58.23% and 71.20%) and P12h (53.31% and 65.01%), respectively. Clear, spreadable, tolerable, pseudoplastic, and thixotropic HPMC-based hydrogels were developed. They showed more prolonged drug release and drug permeation profiles. NP2- and NP6-laden hydrogels (G3 and G4 systems, respectively) had promising antibacterial activity, and reasonable histopathological safety. Conclusion G3 and G4 are potential ocular delivery systems for NFX.
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Affiliation(s)
- Rana M Gebreel
- Department of Pharmaceutics, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza, Egypt
| | - Noha A Edris
- Department of Ophthalmology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hala M Elmofty
- Department of Ophthalmology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mina I Tadros
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt.,Department of Pharmaceutics, Faculty of Pharmacy and Drug Technology, Egyptian Chinese University, Cairo, Egypt
| | - Mohamed A El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Doaa H Hassan
- Department of Pharmaceutics, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza, Egypt
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Chittasupho C, Thongnopkoon T, Burapapisut S, Charoensukkho C, Shuwisitkul D, Samee W. Stability, permeation, and cytotoxicity reduction of capsicum extract nanoparticles loaded hydrogel containing wax gourd extract. Saudi Pharm J 2020; 28:1538-1547. [PMID: 33424247 PMCID: PMC7783228 DOI: 10.1016/j.jsps.2020.10.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 10/04/2020] [Indexed: 02/07/2023] Open
Abstract
The aim of this study was to develop hydrogel loaded with capsicum extract nanoparticles and wax gourd extract for transdermal delivery of capsaicin. The addition of wax gourd extract was supposed to reduce cytotoxicity of capsaicin in capsicum extract against HaCaT keratinocyte cell line. Capsicum extract nanoparticles were prepared by solvent displacement method using hyaluronic acid as a stabilizer. The physical and chemical stability of capsicum extract nanoparticles were investigated by dynamic light scattering technique and UV-Visible spectrophotometry, respectively. Hydrogel loaded with capsicum extract nanoparticles and wax gourd fruit extract was then formulated by using Carbopol 940® as a gelling agent for transdermal delivery. The skin permeability of capsaicin from the hydrogel was evaluated by Franz diffusion cell approach. The cytotoxicity reduction of capsicum extract nanoparticles and capsicum extract nanoparticles by mixing with wax gourd extract was determined by MTT assay The results showed that capsicum extract nanoparticles exhibited an average diameter of 168.4 ± 5.3 nm with a polydispersity index and zeta potential value of 0.26 ± 0.01 and -45.7 ± 7.1 mV, respectively. After two month-storage, particle size, polydispersity index, and zeta potential values of capsicum extract nanoparticles stored at 4° C, 30° C, and 45 °C did not significantly change. The capsaicin content decreased to 78%, 71%, and 72% when stored at 4 °C, 30 °C, and 45 °C for three months, respectively. The pH values of hydrogel containing capsicum extract nanoparticles were found to be in the range of 5.58-6.05 indicating good stability. The hydrogel exhibited a pseudoplastic character. The rate of permeation flux of capsaicin from hydrogel was 7.96 µg/cm2/h. A significant increase in cell viability was observed when the cells were incubated with capsicum extract nanoparticles mixed with wax gourd, compared to capsicum extract nanoparticles alone. The wax gourd extract in the hydrogel protected HaCaT cells from capsaicin cytotoxicity, thus may provide a new approach for delivery of capsaicin to reduce cytotoxicity to skin cells.
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Affiliation(s)
- Chuda Chittasupho
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Thanu Thongnopkoon
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Srinakharinwirot University, Ongkharak, Nakhonnayok 26120, Thailand
| | - Supisara Burapapisut
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Srinakharinwirot University, Ongkharak, Nakhonnayok 26120, Thailand
| | - Chutharat Charoensukkho
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Srinakharinwirot University, Ongkharak, Nakhonnayok 26120, Thailand
| | - Duangratana Shuwisitkul
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Srinakharinwirot University, Ongkharak, Nakhonnayok 26120, Thailand
| | - Weerasak Samee
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Srinakharinwirot University, Ongkharak, Nakhonnayok 26120, Thailand
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Ann J, Kim HS, Thorat SA, Kim H, Ha HJ, Choi K, Kim YH, Kim M, Hwang SW, Pearce LV, Esch TE, Turcios NA, Blumberg PM, Lee J. Discovery of Nonpungent Transient Receptor Potential Vanilloid 1 (TRPV1) Agonist as Strong Topical Analgesic. J Med Chem 2019; 63:418-424. [PMID: 31702924 DOI: 10.1021/acs.jmedchem.9b01046] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Paradoxically, some TRPV1 agonists are, at the organismal level, both nonpungent and clinically useful as topical analgesics. Here, we describe the scaled-up synthesis and characterization in mouse models of a novel, nonpungent vanilloid. Potent analgesic activity was observed in models of neuropathic pain, and the compound blocked capsaicin induced allodynia, showing dermal accumulation with little transdermal absorption. Finally, it displayed much weaker systemic toxicity compared to capsaicin and was negative in assays of genotoxicity.
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Affiliation(s)
- Jihyae Ann
- Laboratory of Medicinal Chemistry, College of Pharmacy , Seoul National University , 1 Gwanak-ro , Gwanak-gu, Seoul 08826 , Republic of Korea
| | - Ho Shin Kim
- Laboratory of Medicinal Chemistry, College of Pharmacy , Seoul National University , 1 Gwanak-ro , Gwanak-gu, Seoul 08826 , Republic of Korea
| | - Shivaji A Thorat
- Laboratory of Medicinal Chemistry, College of Pharmacy , Seoul National University , 1 Gwanak-ro , Gwanak-gu, Seoul 08826 , Republic of Korea
| | - Hee Kim
- Medifron DBT , Sandanro 349 , Danwon-gu, Ansan-si , Gyeonggi-do 15426 , Republic of Korea
| | - Hee-Jin Ha
- Medifron DBT , Sandanro 349 , Danwon-gu, Ansan-si , Gyeonggi-do 15426 , Republic of Korea
| | - Kwanghyun Choi
- Medifron DBT , Sandanro 349 , Danwon-gu, Ansan-si , Gyeonggi-do 15426 , Republic of Korea
| | - Young-Ho Kim
- Medifron DBT , Sandanro 349 , Danwon-gu, Ansan-si , Gyeonggi-do 15426 , Republic of Korea
| | - Minseok Kim
- Department of Biomedical Sciences and Department of Physiology , Korea University College of Medicine , Seoul 02841 , Republic of Korea
| | - Sun Wook Hwang
- Department of Biomedical Sciences and Department of Physiology , Korea University College of Medicine , Seoul 02841 , Republic of Korea
| | - Larry V Pearce
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research , National Cancer Institute, NIH , Bethesda , Maryland 20892-4255 , United States
| | - Timothy E Esch
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research , National Cancer Institute, NIH , Bethesda , Maryland 20892-4255 , United States
| | - Noe A Turcios
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research , National Cancer Institute, NIH , Bethesda , Maryland 20892-4255 , United States
| | - Peter M Blumberg
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research , National Cancer Institute, NIH , Bethesda , Maryland 20892-4255 , United States
| | - Jeewoo Lee
- Laboratory of Medicinal Chemistry, College of Pharmacy , Seoul National University , 1 Gwanak-ro , Gwanak-gu, Seoul 08826 , Republic of Korea
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Lukács B, Bajza Á, Kocsis D, Csorba A, Antal I, Iván K, Laki AJ, Erdő F. Skin-on-a-Chip Device for Ex Vivo Monitoring of Transdermal Delivery of Drugs-Design, Fabrication, and Testing. Pharmaceutics 2019; 11:pharmaceutics11090445. [PMID: 31480652 PMCID: PMC6781558 DOI: 10.3390/pharmaceutics11090445] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 12/24/2022] Open
Abstract
To develop proper drug formulations and to optimize the delivery of their active ingredients through the dermal barrier, the Franz diffusion cell system is the most widely used in vitro/ex vivo technique. However, different providers and manufacturers make various types of this equipment (horizontal, vertical, static, flow-through, smaller and larger chambers, etc.) with high variability and not fully comparable and consistent data. Furthermore, a high amount of test drug formulations and large size of diffusion skin surface and membranes are important requirements for the application of these methods. The aim of our study was to develop a novel Microfluidic Diffusion Chamber device and compare it with the traditional techniques. Here the design, fabrication, and a pilot testing of a microfluidic skin-on-a chip device are described. Based on this chip, further developments can also be implemented for industrial purposes to assist the characterization and optimization of drug formulations, dermal pharmacokinetics, and pharmacodynamic studies. The advantages of our device, beside the low costs, are the small drug and skin consumption, low sample volumes, dynamic arrangement with continuous flow mimicking the dermal circulation, as well as rapid and reproducible results.
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Affiliation(s)
- Bence Lukács
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Práter u. 50a, H-1083 Budapest, Hungary
| | - Ágnes Bajza
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Práter u. 50a, H-1083 Budapest, Hungary
| | - Dorottya Kocsis
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Práter u. 50a, H-1083 Budapest, Hungary
| | - Attila Csorba
- Biological Research Center, Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary
| | - István Antal
- Department of Pharmaceutics, Semmelweis University, Hőgyes Endre u. 7, H-1092 Budapest, Hungary
| | - Kristóf Iván
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Práter u. 50a, H-1083 Budapest, Hungary
| | - András József Laki
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Práter u. 50a, H-1083 Budapest, Hungary
- Department of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó u. 37-47. H-1094 Budapest, Hungary
| | - Franciska Erdő
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Práter u. 50a, H-1083 Budapest, Hungary.
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A randomised, double-blind, placebo-controlled crossover trial of the influence of the HCN channel blocker ivabradine in a healthy volunteer pain model: an enriched population trial. Pain 2019; 160:2554-2565. [DOI: 10.1097/j.pain.0000000000001638] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Capsaicin inhibits the function of α 7-nicotinic acetylcholine receptors expressed in Xenopus oocytes and rat hippocampal neurons. Eur J Pharmacol 2019; 857:172411. [PMID: 31152699 DOI: 10.1016/j.ejphar.2019.172411] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/16/2019] [Accepted: 05/22/2019] [Indexed: 11/21/2022]
Abstract
Capsaicin is a naturally occurring alkaloid derived from Chili peppers fruits. Using the two-electrode voltage-clamp technique in Xenopus oocyte expression system, actions of capsaicin on the functional properties of α7 subunit of the human nicotinic acetylcholine (α7 nACh) receptor were investigated. Ion currents activated by ACh (100 μM) were reversibly inhibited with an IC50 value of 8.6 μM. Inhibitory actions of capsaicin was independent of membrane potential. Furthermore, Ca2+-dependent Cl- channels expressed endogenously in oocytes were not involved in inhibitory actions of capsaicin. In addition, increasing the ACh concentrations could not reverse the inhibitory effects of capsaicin. Importantly, specific binding of [125I] α-bungarotoxin remained unaltered by capsaicin suggesting that its effect is noncompetitive. Whole cell patch-clamp technique was performed in CA1 stratum radiatum interneurons of rat hippocampal slices. Ion currents induced by choline, a selective-agonist of α7-receptor, were reversibly inhibited by 10 min bath application of capsaicin (10 μM). Collectively, results of our investigation indicate that the function of the α7-nACh receptor expressed in Xenopus oocytes and in hippocampal interneurons are inhibited by capsaicin.
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Comparison of the Effect of Bioadhesive Polymers on Stability and Drug Release Kinetics of Biocompatible Hydrogels for Topical Application of Ibuprofen. J Pharm Sci 2019; 108:1326-1333. [DOI: 10.1016/j.xphs.2018.10.054] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/25/2018] [Accepted: 10/25/2018] [Indexed: 12/25/2022]
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15
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Park SH, Shin HS, Park SN. A novel pH-responsive hydrogel based on carboxymethyl cellulose/2-hydroxyethyl acrylate for transdermal delivery of naringenin. Carbohydr Polym 2018; 200:341-352. [DOI: 10.1016/j.carbpol.2018.08.011] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 07/16/2018] [Accepted: 08/04/2018] [Indexed: 12/14/2022]
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16
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Rodríguez-Luna A, Ávila-Román J, González-Rodríguez ML, Cózar MJ, Rabasco AM, Motilva V, Talero E. Fucoxanthin-Containing Cream Prevents Epidermal Hyperplasia and UVB-Induced Skin Erythema in Mice. Mar Drugs 2018; 16:E378. [PMID: 30308980 PMCID: PMC6212948 DOI: 10.3390/md16100378] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/03/2018] [Accepted: 10/08/2018] [Indexed: 12/13/2022] Open
Abstract
Microalgae represent a source of bio-active compounds such as carotenoids with potent anti-inflammatory and antioxidant properties. We aimed to investigate the effects of fucoxanthin (FX) in both in vitro and in vivo skin models. Firstly, its anti-inflammatory activity was evaluated in LPS-stimulated THP-1 macrophages and TNF-α-stimulated HaCaT keratinocytes, and its antioxidant activity in UVB-irradiated HaCaT cells. Next, in vitro and ex vivo permeation studies were developed to determine the most suitable formulation for in vivo FX topical application. Then, we evaluated the effects of a FX-containing cream on TPA-induced epidermal hyperplasia in mice, as well as on UVB-induced acute erythema in hairless mice. Our results confirmed the in vitro reduction of TNF-α, IL-6, ROS and LDH production. Since the permeation results showed that cream was the most favourable vehicle, FX-cream was elaborated. This formulation effectively ameliorated TPA-induced hyperplasia, by reducing skin edema, epidermal thickness, MPO activity and COX-2 expression. Moreover, FX-cream reduced UVB-induced erythema through down-regulation of COX-2 and iNOS as well as up-regulation of HO-1 protein via Nrf-2 pathway. In conclusion, FX, administered in a topical formulation, could be a novel natural adjuvant for preventing exacerbations associated with skin inflammatory pathologies as well as protecting skin against UV radiation.
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Affiliation(s)
- Azahara Rodríguez-Luna
- Department of Pharmacology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain.
| | - Javier Ávila-Román
- Department of Pharmacology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain.
| | | | - María José Cózar
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain.
| | - Antonio M Rabasco
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain.
| | - Virginia Motilva
- Department of Pharmacology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain.
| | - Elena Talero
- Department of Pharmacology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain.
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Abdelmonem R, El Nabarawi M, Attia A. Development of novel bioadhesive granisetron hydrochloride spanlastic gel and insert for brain targeting and study their effects on rats. Drug Deliv 2018; 25:70-77. [PMID: 29228824 PMCID: PMC6058699 DOI: 10.1080/10717544.2017.1413447] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The aim of this study was to formulate granisetron hydrochloride (GH) spanlastic in mucoadhesive gels and lyophilized inserts for intranasal administration to improve GH bioavailability and brain targeting. Carpapol 934 and HPMC were incorporated in GH spanlastic in nasal gels (GHSpNGs). Gelatin and HPMC as matrix former, glycine as a collapse protecting and mannitol as an insert filler and sweeting agent were used to prepare GH spanlastic loaded in lyophilized inserts (GHSpNIs). The prepared GHSpNGs were characterized for pH measurement, drug content, rheology, and in vitro drug release. The prepared GHSpNIs were characterized for drug content, surface pH, GH release, and mucoadhesion. Biological investigations including pharmacokinetics studies and brain drug targeting efficiency dimensions were performed on rats (LC–MS/MS). The results showed thixotropic pseudoplastic gels and white insert with pH values in a physiological range, drug content (89.9–98.6%), (82.4–98.38%) for gel and insert, respectively and rapid release rate of GH. Biological studies showed that Cmax and AUC0–6 h in brain and plasma after intranasal administration of gel and insert were higher compared to IV administration of GH solution. A high brain targeting efficiency (199.3%, 230%) for gel and insert, respectively and a direct nose to brain transport (49.8%, 56.95%) for gel and insert, respectively confirmed that there is a direct nose to brain transport of GH following nasal administration of GH spanlastic loaded in nasal gel and insert. GHSpNIs can be considered as potential novel drug delivery system intended for brain targeting via the nasal rout of administration than GHSpNGs.
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Affiliation(s)
- Rehab Abdelmonem
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Misr University for Science and Technology , 6th of October City , Giza, Egypt
| | - Mohamed El Nabarawi
- b Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Cairo University , Giza , Egypt
| | - Alshaimaa Attia
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Misr University for Science and Technology , 6th of October City , Giza, Egypt
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18
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Schmidberger M, Daniels R, Lunter DJ. Method to determine the impact of substantivity on ex vivo skin-permeation. Eur J Pharm Biopharm 2018; 131:1-7. [PMID: 30048744 DOI: 10.1016/j.ejpb.2018.07.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 07/19/2018] [Accepted: 07/23/2018] [Indexed: 11/17/2022]
Abstract
Topical formulations are the most common therapeutic agents in the treatment of skin diseases. They contain one or more active pharmaceutical ingredients (API) which need to penetrate or permeate the skin in order to exert their effect. However, after application a part of the formulation is removed from the skin due to contact with the environment. Therefore, a part of the active is then not available for penetration and thus, a loss in therapeutic effect will result. To achieve the desired therapeutic outcome a sufficient fraction of the formulation must remain on the skin. The extent to which the loss of preparation affects penetration and permeation is less investigated. This work presents a method to examine the influence of mechanical stress and formulation loss on skin permeation. A movable punch with a defined weight simulated contact between clothing or skin and the applied formulation. Weight of the tool, number of contacts and speed settings were variable and were investigated. Ex vivo permeation experiments were performed in Franz diffusion cells using porcine skin. Three preparations with nonivamide as active ingredient were chosen as model formulations: A semisolid cream, an oil-in-oil emulsion and a film-forming formulation. The last two show sustained permeation profiles. The method uses skin-to-formulation and clothing-to-formulation contact to simulate the removal of the formulations from the skin.
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Affiliation(s)
- Markus Schmidberger
- Department of Pharmaceutical Technology, Eberhard Karls University, Tuebingen, Germany
| | - Rolf Daniels
- Department of Pharmaceutical Technology, Eberhard Karls University, Tuebingen, Germany
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19
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Serafini M, Griglio A, Aprile S, Seiti F, Travelli C, Pattarino F, Grosa G, Sorba G, Genazzani AA, Gonzalez-Rodriguez S, Butron L, Devesa I, Fernandez-Carvajal A, Pirali T, Ferrer-Montiel A. Targeting Transient Receptor Potential Vanilloid 1 (TRPV1) Channel Softly: The Discovery of Passerini Adducts as a Topical Treatment for Inflammatory Skin Disorders. J Med Chem 2018; 61:4436-4455. [DOI: 10.1021/acs.jmedchem.8b00109] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Marta Serafini
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Alessia Griglio
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Silvio Aprile
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Fabio Seiti
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Cristina Travelli
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Franco Pattarino
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Giorgio Grosa
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Giovanni Sorba
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Armando A. Genazzani
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Sara Gonzalez-Rodriguez
- Instituto de Biología Molecular y Celular, Universitas Miguel Hernandez, Av de la Universidad s/n, 03202 Elche, Spain
| | - Laura Butron
- Instituto de Biología Molecular y Celular, Universitas Miguel Hernandez, Av de la Universidad s/n, 03202 Elche, Spain
| | - Isabel Devesa
- AntalGenics, SL. Ed. Quorum III, Parque
Científico UMH, Av de la Universidad s/n, 03202 Elche, Spain
| | - Asia Fernandez-Carvajal
- Instituto de Biología Molecular y Celular, Universitas Miguel Hernandez, Av de la Universidad s/n, 03202 Elche, Spain
| | - Tracey Pirali
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Antonio Ferrer-Montiel
- Instituto de Biología Molecular y Celular, Universitas Miguel Hernandez, Av de la Universidad s/n, 03202 Elche, Spain
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20
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Shrotriya SN, Ranpise NS, Vidhate BV. Skin targeting of resveratrol utilizing solid lipid nanoparticle-engrossed gel for chemically induced irritant contact dermatitis. Drug Deliv Transl Res 2017; 7:37-52. [PMID: 27981502 DOI: 10.1007/s13346-016-0350-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Irritant contact dermatitis (ICD) is a chronic and relapsing skin disease with severe eczematous lesions. Despite its growing prevalence, therapeutic treatments remain limited. Long-term topical corticosteroid treatment can induce skin atrophy, hypopigmentation, and increase in transepidermal water loss. An innovative dermal treatment is essential to reduce the side effects of corticosteroids. Topical resveratrol (RES), although effective for ICD, is a challenging molecule due to low solubility and poor bioavailability. The objective of this work was to build RES-loaded solid lipid nanoparticles (RES-SLNs) with skin targeting. For this purpose, RES-SLNs were prepared using the probe ultrasonication method utilizing Precirol ATO 5 and Tween 20. The RES-SLNs were evaluated for particle size, entrapment efficiency (EE), and transmission electron microscopy (TEM) studies. Further, RES-SLNs were incorporated into Carbopol gel and investigated for ex vivo skin permeation, deposition study on human cadaver skin, and finally skin irritation study on New Zealand White rabbits. It was further assessed for possible beneficial effects on ICD using BALB/c mice. RES-SLN showed mean size below 100 nm and 68-89% EE. TEM studies confirmed spherical particles in the nanometer range. An ex vivo study of RES-SLN-loaded gel exhibited controlled drug release up to 24 h; similarly, in vitro drug deposition studies showed potential of skin targeting with no skin irritation. RES-SLN gel confirmed competent suppression of ear swelling and reduction in skin water content in the BALB/c mouse model of ICD when compared to marketed gel. Thus, the formulated RES-SLN gel would be a safe and effective alternative to conventional vehicles for treatment of ICD.
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Affiliation(s)
- S N Shrotriya
- Sinhgad College of Pharmacy, Vadgaon(Bk.), Pune S. No 44/1, Vadgaon (Bk), Off Sinhgad Road, Pune, MS, 411041, India.
| | - N S Ranpise
- Sinhgad College of Pharmacy, Vadgaon(Bk.), Pune S. No 44/1, Vadgaon (Bk), Off Sinhgad Road, Pune, MS, 411041, India
| | - B V Vidhate
- Sinhgad College of Pharmacy, Vadgaon(Bk.), Pune S. No 44/1, Vadgaon (Bk), Off Sinhgad Road, Pune, MS, 411041, India
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21
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Shrotriya S, Ranpise N, Satpute P, Vidhate B. Skin targeting of curcumin solid lipid nanoparticles-engrossed topical gel for the treatment of pigmentation and irritant contact dermatitis. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:1471-1482. [PMID: 28884598 DOI: 10.1080/21691401.2017.1373659] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Irritant contact dermatitis (ICD) and hyperpigmentation are the problems associated with skin. Topical curcumin (CUR) although effective in hyperpigmentation and ICD, is a challenging molecule due to low-solubility. Encapsulation of CUR into solid lipid nanoparticles (SLNs) makes it amenable to topical dosing as their small size promotes its penetration into the skin. CUR-SLNs were prepared using Precirol ATO5 and Tween-80 by probe ultrasonication method. Further, CUR-SLNs were incorporated into Carbopol gel and investigated for ex-vivo skin permeation, skin deposition and skin irritation studies. The potential of CUR-SLN gel was checked against hyperpigmentation through the inhibition of tyrosinase enzyme. It was further evaluated for possible effects on ICD using BALB/c mice. The optimized CUR-SLN showed the particle size of 51 nm and 93% EE. Ex vivo permeation of CUR-SLN gel exhibited controlled drug release up to 24 h, similarly in vitro drug deposition studies showed potential for skin targeting. In vitro tyrosinase inhibition assay indicates that the formulated gel has potential in skin depigmentation. The gel also confirmed proficient suppression of ear swelling and reduction in skin water content in the BALB/c mouse. Thus, the CUR-SLN gel would be a safe and effective alternative to conventional vehicles for treatment of ICD and pigmentation.
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22
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Wang XR, Gao SQ, Niu XQ, Li LJ, Ying XY, Hu ZJ, Gao JQ. Capsaicin-loaded nanolipoidal carriers for topical application: design, characterization, and in vitro/in vivo evaluation. Int J Nanomedicine 2017; 12:3881-3898. [PMID: 28579775 PMCID: PMC5446972 DOI: 10.2147/ijn.s131901] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Capsaicin has been used in clinical applications for the treatment of pain disorders and inflammatory diseases. Given the strong pungency and high oil/water partition coefficient of capsaicin, capsaicin-loaded nanolipoidal carriers (NLCs) were designed to increase permeation and achieve the analgesic, anti-inflammatory effect with lower skin irritation. Capsaicin-loaded NLCs were prepared and later optimized by the Box–Behnken design. The physicochemical characterizations, morphology, and encapsulation of the capsaicin-loaded NLCs were subsequently confirmed. Capsaicin-loaded NLCs and capsaicin-loaded NLCs gel exhibited sustained release and no cytotoxicity properties. Also, they could significantly enhance the penetration amount, permeation flux, and skin retention amounts of capsaicin due to the application of NLCs. To study the topical permeation mechanism of capsaicin, 3,3′-dioctadecyloxacarbocyanine perchlorate (Dio) was used as a fluorescent dye. Dio-loaded NLCs and Dio-loaded NLCs gel could effectively deliver Dio up to a skin depth of 260 and 210 μm, respectively, primarily through the appendage route on the basis of version skin sections compared with Dio solution, which only delivered Dio up to 150 μm. In vivo therapeutic experiments demonstrated that capsaicin-loaded NLCs and capsaicin-loaded NLCs gel could improve the pain threshold in a dose-dependent manner and inhibit inflammation, primarily by reducing the prostaglandin E2 levels in the tissue compared with capsaicin cream and capsaicin solution. Meanwhile, skin irritation was reduced, indicating that application of NLCs could decrease the irritation caused by capsaicin. Overall, NLCs may be a potential carrier for topical delivery of capsaicin for useful pain and inflammation therapy.
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Affiliation(s)
- Xia-Rong Wang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou
| | - Si-Qian Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou
| | - Xiao-Qian Niu
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou
| | - Long-Jian Li
- Zhejiang Provincial Corps Hospital of Chinese People's Armed Police Forces, Jiaxing, Zhejiang
| | - Xiao-Ying Ying
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou
| | - Zhong-Jie Hu
- Zhejiang Provincial Corps Hospital of Chinese People's Armed Police Forces, Jiaxing, Zhejiang
| | - Jian-Qing Gao
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou.,Jiangsu Engineering Research Center for New-Type External and Transdermal Preparations, Jiangsu, People's Republic of China
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23
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Pourjamal K, Fathi M, Entezami AA, Hasanzadeh M, Shadjou N. Superabsorbent Nanohydrogels of Poly (N-Isopropyl Acrylamide-Co-Itaconic Acid) Grafted on Starch — Synthesis and Swelling Study. ACTA ACUST UNITED AC 2016. [DOI: 10.1142/s1793984416500057] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Biopolymer-based superabsorbent nanohydrogel consisting of N-isopropylacrylamide and itaconic acid (IA) was grafted on to starch backbone in an aqueous solution in the absence of the cross-linker agents. The copolymerization reaction occurred in the presence of ammonium persulfate (APS) as an initiator. The effect of N-isopropylacrylamide-to-IA ratio and different concentrations of initiator were investigated. The nanohydrogel composition was characterized by Fourier transform infrared spectroscopy (FTIR). The thermal stability was analyzed by Thermogravimetric analysis (TGA). Differential scanning calorimetry (DSC) studies were employed for determination of lower critical solution temperature in hydrogels. Dynamic light scattering analysis showed a narrow size distribution around 70–200[Formula: see text]nm for the synthesized nanohydrogels. The effects of pH on swelling behavior of the hydrogel were investigated. The obtained nanohydrogels, due to their pH and thermo dual sensitive properties, have the potential to be used in the drug delivery systems.
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Affiliation(s)
- Karim Pourjamal
- Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Marziyeh Fathi
- Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Ali Akbar Entezami
- Laboratory of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Mohammad Hasanzadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz 51664, Iran
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz 51664, Iran
| | - Nasrin Shadjou
- Department of Nanochemistry, Nano Technology Research Center, Urmia University, Urmia, Iran
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24
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Kong BJ, Kim A, Park SN. Properties and in vitro drug release of hyaluronic acid-hydroxyethyl cellulose hydrogels for transdermal delivery of isoliquiritigenin. Carbohydr Polym 2016; 147:473-481. [PMID: 27178954 DOI: 10.1016/j.carbpol.2016.04.021] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 04/05/2016] [Accepted: 04/06/2016] [Indexed: 11/29/2022]
Abstract
In the present study, the properties of hydrogel systems based on hyaluronic acid (HA)-hydroxyethyl cellulose (HEC) were investigated for effective transdermal delivery of isoliquiritigenin (ILTG). Hydrogels were synthesized by chemical cross-linking, and network structures were characterised using scanning electron microscopy (SEM) and surface area analyser. Texture properties and swelling of HA-HEC hydrogels were found to be closely linked to cross-linker concentration and swelling medium. Water in HA-HEC hydrogels was found to exist mostly in the form of free water. The viscoelasticity and the network stabilization of the hydrogels were analysed via rheological studies. The release kinetics of the hydrogel followed Fickian diffusion mechanism. In an in vitro skin penetration study, the system substantially improved the delivery of ILTG into the skin. These results indicate that the hydrogel system composed of HA and HEC has potential as a transdermal delivery system, with cross-linking density and the swelling medium influencing the properties.
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Affiliation(s)
- Bong Ju Kong
- Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, South Korea
| | - Ayoung Kim
- Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, South Korea
| | - Soo Nam Park
- Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, South Korea.
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25
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Singh S, Vardhan H, Kotla NG, Maddiboyina B, Sharma D, Webster TJ. The role of surfactants in the formulation of elastic liposomal gels containing a synthetic opioid analgesic. Int J Nanomedicine 2016; 11:1475-82. [PMID: 27114707 PMCID: PMC4833371 DOI: 10.2147/ijn.s100253] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Transdermal drug delivery systems have made significant contributions to the medical community, but have yet to completely substitute oral or parenteral delivery. Recently, various strategies have been used to augment the transdermal delivery of therapeutics. Primarily, they include iontophoresis, electrophoresis, sonophoresis, chemical permeation enhancers, microneedles, and vesicular systems. Among these strategies, elastic liposomes appear promising. Elastic vesicle scaffolds have been developed and evaluated as novel topical and transdermal delivery systems, with an infrastructure consisting of hydrophobic and hydrophilic moieties together, and as a result, such scaffolds can accommodate drug molecules with a wide range of solubility. High deformability of these vesicles provides for better penetration of intact vesicles. This system is much more efficient at delivering low- and high-molecular-weight drugs to the skin in terms of quantity and depth. In this work, elastic liposomes of Tramadol HCl were prepared using a solvent evaporation method with different surfactants and were characterized using microscopy, and particle size, shape, drug content, ex vivo release, and zeta potential were also calculated. The prepared elastic liposomes were found to be in the range of 152.4 nm with a zeta potential of −22.4 mV; the entrapment efficiencies of the selected formulation was found to be 79.71%±0.27%. All formulations in the form of a gel were evaluated for physicochemical properties and were found to be homogeneous with no grittiness, and the pH of all formulations was found to be neutral. The optimized selected elastic liposomal formulation followed the Higuchi equation and Fickian diffusion and released the drug for a period of 24 hours. The overall results provide much promise for the continued investigation of deformable vesicles as transdermal drug carriers.
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Affiliation(s)
- Sima Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
| | - Harsh Vardhan
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
| | - Niranjan G Kotla
- Center for Research in Medical Devices, National University of Ireland, Galway, Ireland
| | - Balaji Maddiboyina
- Department of Pharmaceutics, Vishwabharathi College of Pharmaceutical Sciences, Guntur, India
| | | | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA; Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia
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26
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El-Say KM, Abd-Allah FI, Lila AE, Hassan AESA, Kassem AEA. Diacerein niosomal gel for topical delivery: development,in vitroandin vivoassessment. J Liposome Res 2015; 26:57-68. [DOI: 10.3109/08982104.2015.1029495] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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27
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Rollyson WD, Stover CA, Brown KC, Perry HE, Stevenson CD, McNees CA, Ball JG, Valentovic MA, Dasgupta P. Bioavailability of capsaicin and its implications for drug delivery. J Control Release 2014; 196:96-105. [PMID: 25307998 DOI: 10.1016/j.jconrel.2014.09.027] [Citation(s) in RCA: 149] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 09/24/2014] [Accepted: 09/26/2014] [Indexed: 01/08/2023]
Abstract
The dietary compound capsaicin is responsible for the "hot and spicy" taste of chili peppers and pepper extracts. It is a valuable pharmacological agent with several therapeutic applications in controlling pain and inflammation. Emerging studies show that it displays potent anti-tumor activity in several human cancers. On a more basic research level, capsaicin has been used as a ligand to activate several types of ion-channel receptors. The pharmacological activity of capsaicin-like compounds is dependent on several factors like the dose, the route of administration and most importantly on its concentration at target tissues. The present review describes the current knowledge involving the metabolism and bioavailability of capsaicinoids in rodents and humans. Novel drug delivery strategies used to improve the bioavailability and therapeutic index of capsaicin are discussed in detail. The generation of novel capsaicin-mimetics and improved drug delivery methods will foster the hope of innovative applications of capsaicin in human disease.
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Affiliation(s)
- William D Rollyson
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - Cody A Stover
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - Kathleen C Brown
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - Haley E Perry
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - Cathryn D Stevenson
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - Christopher A McNees
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - John G Ball
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - Monica A Valentovic
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - Piyali Dasgupta
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, USA.
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Madan JR, Khude PA, Dua K. Development and evaluation of solid lipid nanoparticles of mometasone furoate for topical delivery. Int J Pharm Investig 2014; 4:60-4. [PMID: 25006550 PMCID: PMC4083535 DOI: 10.4103/2230-973x.133047] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Introduction: Solid lipid nanoparticles (SLNs) are the new generation of submicron sized lipid emulsions where liquid lipid (oil) has been substituted by solid lipid. Lipids used in the formulation are safe, stable and biodegradable in nature. SLNs offer various advantages for topical drug delivery like ability of deposition into skin with the reduced systemic exposure and reduced local side-effects along with providing sustained release of drug. Mometasone furoate (MF) is a topical glucocorticoid having anti-inflammatory, anti-pruritic, anti-hyper proliferative activity. Owing to these properties it is recommended in chronic inflammation and psoriasis. In market, MF cream and lotion (0.1%) are available, which show slight skin irritation, burning and common side-effects due to steroids. Experimental: To overcome the shortcomings of conventional formulations, there is a need to develop a novel formulation that can reduce these side-effects and show maximum desired effects. Thus, SLN of MF can be prepared, which would help in increasing skin deposition as well as provide sustained release. In this study, SLNs were prepared by solvent - injection method. Results: The F8 batch had shown maximum entrapment up to55.59% and sustained drug release for more than 8 h. The skin permeability of SLN loaded gel was found to be 15.21times more than that of marketed cream. SLN loaded gel showed 83.52% of skin deposition which was 2.67 times more than marketed cream and 20 times more than plain drug loaded gel. The scanning electron microscopy and zeta potential study showed formation of good SLN dispersion. The stability study showed successful formation of stable SLNs. Thus, SLNs proved the potential for topical delivery of corticosteroid drug over the conventional formulations. Experimental: To overcome the shortcomings of conventional formulations, there is a need to develop a novel formulation that can reduce these side-effects and show maximum desired effects. Thus, SLN of MF can be prepared, which would help in increasing skin deposition as well as provide sustained release. In this study, SLNs were prepared by solvent - injection method.
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Affiliation(s)
- Jyotsana R Madan
- Department of Pharmaceutics, Sinhgad Technical Education Society's Smt, Kashibai Navale College of Pharmacy, Pune, Maharashtra, India
| | - Priyanka A Khude
- Department of Pharmaceutics, Sinhgad Technical Education Society's Smt, Kashibai Navale College of Pharmacy, Pune, Maharashtra, India
| | - Kamal Dua
- Department of Pharmaceutical Technology, School of Pharmacy, International Medical University, Bukit Jalil, Kuala Lumpur, Malaysia
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Mouzam MI, Dehghan MHG. Characterization and In Vitro Evaluation of Freeze-Dried Nasal Insert Composed of Chlorpheniramine Maleate with Ionic and Nonionic Polymer for Intranasal Delivery. INT J POLYM MATER PO 2014. [DOI: 10.1080/00914037.2013.830257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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30
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Çelebi N, Ermiş S, Özkan S. Development of topical hydrogels of terbinafine hydrochloride and evaluation of their antifungal activity. Drug Dev Ind Pharm 2014; 41:631-9. [DOI: 10.3109/03639045.2014.891129] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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31
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Ma J, Wang C, Luo H, Zhu Z, Wu Y, Wang H. Design and evaluation of a monolithic drug-in-adhesive patch for testosterone based on styrene-isoprene-styrene block copolymer. J Pharm Sci 2013; 102:2221-34. [PMID: 23650152 DOI: 10.1002/jps.23576] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 04/05/2013] [Accepted: 04/12/2013] [Indexed: 11/11/2022]
Abstract
The purpose of the present study was to design and evaluate a monolithic drug-in-adhesive patch with a novel pressure-sensitive adhesive (PSA) matrix based on styrene-isoprene-styrene (SIS) block copolymer. Testosterone was selected as the model drug. The orthogonal array design for ternary mixtures was employed to optimize the amounts of SIS, C-5 hydrocarbon resin, and liquid paraffin. The drug release percentage, water vapor permeability, adhesive properties were chosen as response variables. The patch formulation was optimized by investigating the effects of the drug loading capacity, the type, and amount of permeation enhancer on the adhesive properties and skin permeation. The compositions of the optimal matrix were: 120 g of SIS copolymer, 120 g of C-5 hydrocarbon resin, 60 g of liquid paraffin. An optimized formulation with maximum skin permeation and acceptable adhesive properties was developed incorporating 2% testosterone and 6% isopropyl myristate. No significant differences for in vitro release, skin permeation, and in vivo absorption were observed between the optimal formulation and Testopatch®. The stability evaluation showed that the patches were stable at 25°C/60% relative humidity for 6 months. The result indicated that SIS copolymer was a suitable and compatible polymer for the development of PSA.
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Affiliation(s)
- Jianfang Ma
- National Pharmaceutical Engineering and Research Center, China State Institute of Pharmaceutical Industry, Shanghai 201203, China
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Desai PR, Marepally S, Patel AR, Voshavar C, Chaudhuri A, Singh M. Topical delivery of anti-TNFα siRNA and capsaicin via novel lipid-polymer hybrid nanoparticles efficiently inhibits skin inflammation in vivo. J Control Release 2013; 170:51-63. [PMID: 23643662 DOI: 10.1016/j.jconrel.2013.04.021] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2012] [Revised: 04/15/2013] [Accepted: 04/25/2013] [Indexed: 02/06/2023]
Abstract
The barrier properties of the skin pose a significant but not insurmountable obstacle for development of new effective anti-inflammatory therapies. The objective of this study was to design and evaluate therapeutic efficacy of anti-nociception agent Capsaicin (Cap) and anti-TNFα siRNA (siTNFα) encapsulated cyclic cationic head lipid-polymer hybrid nanocarriers (CyLiPns) against chronic skin inflammatory diseases. Physico-chemical characterizations including hydrodynamic size, surface potential and entrapment efficacies of CyLiPns were found to be 163±9nm, 35.14±8.23mV and 92% for Cap, respectively. In vitro skin distribution studies revealed that CyLiPns could effectively deliver FITC-siRNA up to 360μm skin depth. Further, enhanced (p<0.001) Cap permeation from CyLiPns was observed compared to Capsaicin-Solution and Capzasin-HP. Therapeutic efficacies of CyLiPns were assessed using imiquamod-induced psoriatic plaque like model. CyLiPns carrying both Cap and siTNFα showed significant reduced expression of TNFα, NF-κB, IL-17, IL-23 and Ki-67 genes compared to either drugs alone (p<0.05) and were in close comparison with Topgraf®. Collectively these findings support our notion that novel cationic lipid-polymer hybrid nanoparticles can efficiently carry siTNFα and Cap into deeper dermal milieu and Cap with a combination of siTNFα shows synergism in treating skin inflammation.
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Affiliation(s)
- Pinaki R Desai
- College of Pharmacy & Pharmaceutical Sciences, Florida A&M University, Tallahassee 32307, USA
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33
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Wang C, Liu R, Tang X, Han W. A drug-in-adhesive matrix based on thermoplastic elastomer: evaluation of percutaneous absorption, adhesion, and skin irritation. AAPS PharmSciTech 2012; 13:1179-89. [PMID: 22961413 DOI: 10.1208/s12249-012-9849-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Accepted: 08/22/2012] [Indexed: 11/30/2022] Open
Abstract
A novel drug-in-adhesive matrix was designed and prepared. A thermoplastic elastomer, styrene-isoprene-styrene (SIS) block copolymer, in combination with tackifying resin and plasticizer, was employed to compose the matrix. Capsaicin was selected as the model drug. The drug percutaneous absorption, adhesion properties, and skin irritation were investigated. The results suggested that the diffusion through SIS matrix was the rate-limiting step of capsaicin percutaneous absorption. [SI] content in SIS and SIS proportions put important effects on drug penetration and adhesion properties. The chemical enhancers had strong interactions with the matrix and gave small effect on enhancement of drug skin permeation. The in vivo absorption of samples showed low drug plasma peaks and a steady and constant plasma level for a long period. These results suggested that the possible side effects of drug were attenuated, and the pharmacological effects were enhanced with an extended therapeutic period after application of SIS matrix. The significant differences in pharmacokinetic parameters produced by different formulations demonstrated the influences of SIS copolymer on drug penetrability. Furthermore, the result of skin toxicity test showed that no skin irritation occurred in guinea pig skin after transdermal administration of formulations.
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Goycoolea FM, Valle-Gallego A, Stefani R, Menchicchi B, David L, Rochas C, Santander-Ortega MJ, Alonso MJ. Chitosan-based nanocapsules: physical characterization, stability in biological media and capsaicin encapsulation. Colloid Polym Sci 2012. [DOI: 10.1007/s00396-012-2669-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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35
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Lim HJ, Cho EC, Lee JA, Kim J. A novel approach for the use of hyaluronic acid-based hydrogel nanoparticles as effective carriers for transdermal delivery systems. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.03.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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36
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Hossain MA, Ahmed SU, Plakogiannis FM. Effect of vehicle systems, pH and enhancers on the permeation of highly lipophilic aripiprazole from Carbopol 971P gel systems across human cadaver skin. Drug Dev Ind Pharm 2011; 38:323-30. [DOI: 10.3109/03639045.2011.602978] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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37
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Escobar-Chávez JJ, Bonilla-Martínez D, Villegas-González MA, Molina-Trinidad E, Casas-Alancaster N, Revilla-Vázquez AL. Microneedles: a valuable physical enhancer to increase transdermal drug delivery. J Clin Pharmacol 2010; 51:964-77. [PMID: 21148047 DOI: 10.1177/0091270010378859] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Transdermal drug delivery offers an attractive alternative to the conventional drug delivery methods of oral administration and injection. However, the stratum corneum acts as a barrier that limits the penetration of substances through the skin. Recently, the use of micron-scale needles in increasing skin permeability has been proposed and shown to dramatically increase transdermal delivery. Microneedles have been fabricated with a range of sizes, shapes, and materials. Most in vitro drug delivery studies have shown these needles to increase skin permeability to a broad range of drugs that differ in molecular size and weight. In vivo studies have demonstrated satisfactory release of oligonucleotides and insulin and the induction of immune responses from protein and DNA vaccines. Microneedles inserted into the skin of human subjects were reported to be painless. For all these reasons, microneedles are a promising technology to deliver drugs into the skin. This review presents the main findings concerning the use of microneedles in transdermal drug delivery. It also covers types of microneedles, their advantages and disadvantages, enhancement mechanisms, and trends in transdermal drug delivery.
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Affiliation(s)
- José Juan Escobar-Chávez
- Departamento de Ingeniería y Tecnología, Sección de Tecnología Farmacéutica, Facultad de Estudios Superiores Cuautitlán-Universidad Nacional Autónoma de México, Av. 1° de Mayo s/n. Col. Santa María las Torres, Cuautitlán Izcalli, Estado de México, C.P. 54740 México.
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38
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Godoy GRD, Liebano RE, Corrêa JB, Hochman B, Ferreira LM. Capsaicin on the viability of random-pattern skin flaps in rats. Acta Cir Bras 2010; 25:440-3. [DOI: 10.1590/s0102-86502010000500010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Accepted: 05/11/2010] [Indexed: 08/30/2023] Open
Abstract
PURPOSE: To evaluate the effects of capsaicin on the viability of ischemic random-pattern skin flaps in rats. METHODS:Forty EPM1-Wistar rats were randomized into two groups of 20 animals each, the capsaicin group and the control group. A random-pattern skin flap measuring 10 x 4cm was raised and a plastic barrier was placed between the flap and the donor site. After the surgical procedure, the control group was treated with an inert vehicle in the form of a cream applied uniformly to a rayon bandage which, in turn, was applied to the surface of the skin flap. The capsaicin group was treated in the same way, but in this case capsaicin was added to the cream. This procedure was repeated for two consecutive days. RESULTS: There was a significantly smaller amount of flap necrosis in the capsaicin group (35.07%) than in the control group (44.75%) (p=0.035). CONCLUSION:Topical administration of capsaicin improved the viability of ischemic random-pattern skin flaps in rats.
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Raza K, Singh B, Mahajan A, Negi P, Bhatia A, Katare OP. Design and evaluation of flexible membrane vesicles (FMVs) for enhanced topical delivery of capsaicin. J Drug Target 2010; 19:293-302. [PMID: 20615093 DOI: 10.3109/1061186x.2010.499464] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Capsaicin, extracted from the fruits of Capsicum, is a powerful local stimulant with strong rubifacient action, devoid of vesication. Topical use of capsaicin is quite common in the treatment of various pain-associated musculo-skeletal disorders, itching and neuropathy. Despite its high pharmacodynamic potential, the patient compliance to the drug is reported to be poor owing to multiple skin problems like irritation, burning sensation, and erythma. The present study targets the encasement of drug in the interiors of flexible membrane vesicles (FMVs), as these are reported to have better penetration in the deeper layers of skin, thus leading to enhanced localization of drug and consequently, decreased skin irritation. Multilamellar drug-loaded FMVs, prepared by thin-film hydration were evaluated for their efficacy in vitro and in vivo. When compared with conventional liposomes, the formulated FMVs showed higher skin retention during ex vivo permeation studies employing LACA mice skin, higher analgesic potential using radiant tail-flick method in mice, and better flexibility in regaining their size. Being less of an irritant, these vesicular carriers were also found to be more comfortable on human skin. Thus, the capsaicin-loaded FMVs offer high potential as topical drug delivery technologies with improved patient acceptance and effectiveness.
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Affiliation(s)
- Kaisar Raza
- Drug Delivery Research Group, University Institute of Pharmaceutical Sciences, UGC-Centre of Advanced Studies, Panjab University, Chandigarh, India
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40
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Ahmed TA, Ibrahim HM, Ibrahim F, Samy AM, Fetoh E, Nutan MTH. In vitro release, rheological, and stability studies of mefenamic acid coprecipitates in topical formulations. Pharm Dev Technol 2010; 16:497-510. [PMID: 20550465 DOI: 10.3109/10837450.2010.495394] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A suitable topical formulation of mefenamic acid was developed in order to eliminate the gastrointestinal disorders associated with its oral administration. Drug coprecipitates prepared with different polymers at various drug-to-polymer ratios improved drug solubility and dissolution compared to pure drug and physical mixtures. PVP polymers (ratio 1:4) produced the best results. Aqueous ionic cream, ointments of absorption and water soluble bases and gels of methylcellulose, carboxymethylcellulose sodium, HPMC, Carbopol® 934 and 940, and Pluronic® F127 bases containing 1-10% drug as coprecipitates of PVP polymers (1:4) were prepared. The highest drug release was achieved at 1% drug concentration from water soluble base and methylcellulose among cream/ointment and gel bases, respectively. Gels, in general yielded better release than creams/ointments. All tested medicated creams/ointments exhibited plastic flow while all gels conformed to pseudoplasticity. Most of them showed thixotropy, a desired property of topical preparations. Stability studies revealed that HPMC and methylcellulose had the smallest changes in drug content, viscosity, and pH among the formulations. Considering drug release, rheological properties, and stability, methylcellulose gel containing 1% drug as coprecipitates of PVP K90 was the best among the studied formulations, was promising for improving bioavailability of mefenamic acid and can be used in future studies.
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Affiliation(s)
- Tarek A Ahmed
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
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41
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Wang H, Papoiu A, Coghill R, Patel T, Wang N, Yosipovitch G. Ethnic differences in pain, itch and thermal detection in response to topical capsaicin: African Americans display a notably limited hyperalgesia and neurogenic inflammation. Br J Dermatol 2010; 162:1023-9. [DOI: 10.1111/j.1365-2133.2009.09628.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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42
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Fiala S, Brown MB, Jones SA. An investigation into the influence of binary drug solutions upon diffusion and partition processes in model membranes. J Pharm Pharmacol 2010. [DOI: 10.1211/jpp.60.12.0007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
Few studies have assessed the impact of binary systems on the fundamental mathematical models that describe drug permeation. The aim of this work was to determine the influence of varying the proportions of prilocaine and lidocaine in a binary saturated solution on mass transfer across synthetic membranes. Infinite-dose permeation studies were performed using Franz diffusion cells with either regenerated cellulose or silicone membranes, and partition coefficients were determined by drug loss over 24 h. There was a linear relationship between the flux of prilocaine and lidocaine through regenerated cellulose membrane (R2 ≥ 0.985, n = 5) and their normalised ratio in solution. This linear model was also applicable for the permeation of prilocaine through silicone membrane (R2 = 0.991, n = 5), as its partition coefficient was independent of the drug ratio (15.84 ± 1.41). However, the partition coefficient of lidocaine increased from 27.22 ± 1.68 to 47.03 ± 3.32 as the ratio of prilocaine increased and this resulted in a non-linear relationship between permeation and drug ratio. Irrespective of the membrane used, the permeation of one drug from a binary system was hindered by the presence of the second, which could be attributed to a reduction in available membrane diffusion volume.
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Affiliation(s)
- Sarah Fiala
- Pharmaceutical Science Division, King's College London, 150 Stamford Street, London SE1 9NH, UK
| | - Marc B Brown
- School of Pharmacy, University of Hertfordshire, College Lane, Hatfield, Herts. AL10 9AB, UK
- MedPharm Ltd, Unit 3/Chancellor Court, 50 Occam Road, Surrey Research Park, Guildford GU2 7YN, UK
| | - Stuart A Jones
- Pharmaceutical Science Division, King's College London, 150 Stamford Street, London SE1 9NH, UK
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Sanna V, Gavini E, Cossu M, Rassu G, Giunchedi P. Solid lipid nanoparticles (SLN) as carriers for the topical delivery of econazole nitrate: in-vitro characterization, ex-vivo and in-vivo studies. J Pharm Pharmacol 2010; 59:1057-64. [PMID: 17725847 DOI: 10.1211/jpp.59.8.0002] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
Solid lipid nanoparticles (SLN) designed for topical administration of econazole nitrate (ECN), were prepared by o/w high-shear homogenization method using different ratios of lipid and drug (5:1 and 10:1). SLN were characterized in terms of particle size, morphology, encapsulation efficiency and crystalline structure. After incorporation of SLN into hydrogels, rheological measurements were performed, and ex-vivo drug permeation tests were carried out using porcine stratum corneum (SC). In-vivo study of percutaneous absorption of ECN as a function of application time and composition of gels was carried out by tape-stripping technique. Penetration tests of the drug from a conventional gel were performed as comparison. High-shear homogenization method resulted in a good technique for preparation of ECN-loaded SLN. Particles had a mean diameter of about 150 nm and a regular shape and smooth surface. The encapsulation efficiency values were about 100%. Ex-vivo tests showed that SLN were able to control the drug release through the SC; the release rate depended upon the lipid content on the nanoparticles. In-vivo studies demonstrated that SLN promoted a rapid penetration of ECN through the SC after 1 h and improved the diffusion of the drug in the deeper skin layers after 3 h of application compared with the reference gel.
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Affiliation(s)
- Vanna Sanna
- Dipartimento di Scienze del Farmaco, via Muroni 23/a, 07100 Sassari, Italy
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44
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Karavana SY, Güneri P, Ertan G. Benzydamine hydrochloride buccal bioadhesive gels designed for oral ulcers: preparation, rheological, textural, mucoadhesive and release properties. Pharm Dev Technol 2010; 14:623-31. [PMID: 19883251 DOI: 10.3109/10837450902882351] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
This study developed and examined the characterization of Benzidamine hydrochloride (BNZ) bioadhesive gels as platforms for oral ulcer treatments. Bioadhesive gels were prepared with four different hydroxypropylmethylcellulose (HPMC) types (E5, E15, E50 and K100M) with different ratios. Each formulation was characterized in terms of drug release, rheological, mechanical properties and adhesion to a buccal bovine mucosa. Drug release was significantly decreased as the concentration and individual viscosity of each polymeric component increased due to improved viscosity of the gel formulations. The amount of drug released for the formulations ranged from 0.76 +/- 0.07 and 1.14 +/- 0.01 (mg/cm2 +/- SD). Formulations exhibited pseudoplastic flow and all formulations, increasing the concentration of HPMC content significantly raised storage modulus (G'), loss modulus (G''), dynamic viscosity (eta') at 37 degrees C. Increasing concentration of each polymeric component also significantly improved the hardness, compressibility, adhesiveness, cohesiveness and mucoadhesion but decreased the elasticity of the gel formulations. All formulations showed non-Fickian diffusion due to the relaxation and swelling of the polymers with water. In conclusion, the formulations studied showed a wide range of mechanical and drug diffusion characteristics. On the basis of the obtained data, the bioadhesive gel formulation which was prepared with 2.5% HPMC K 100M was determined as the most appropriate formulation for buccal application in means of possessing suitable mechanical properties, exhibiting high cohesion and bioadhesion.
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Affiliation(s)
- Sinem Yaprak Karavana
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Ege University, 35100 Bornova, Izmir, Turkey.
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45
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Wang H, Papoiu A, Coghill R, Patel T, Wang N, Yosipovitch G. Ethnic differences in pain, itch and thermal detection in response to topical capsaicin: African Americans display a notably limited hyperalgesia and neurogenic inflammation. Br J Dermatol 2010. [DOI: 10.1111/j.1365-2133.2010.09628.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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46
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Escobar-Chávez JJ, Bonilla-Martínez D, Villegas-González MA, Revilla-Vázquez AL. Electroporation as an efficient physical enhancer for skin drug delivery. J Clin Pharmacol 2009; 49:1262-83. [PMID: 19717723 DOI: 10.1177/0091270009344984] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Transdermal drug delivery offers an attractive alternative to the conventional drug delivery methods of oral administration and injection. However, the stratum corneum acts as a barrier that limits the penetration of substances through the skin. Application of high-voltage pulses to the skin increases its permeability (electroporation) and enables the delivery of various substances into and through the skin. The application of electroporation to the skin has been shown to increase transdermal drug delivery. Moreover, electroporation, used alone or in combination with other enhancement methods, expands the range of drugs (small to macromolecules, lipophilic or hydrophilic, charged or neutral molecules) that can be delivered transdermally. The efficacy of transport depends on the electrical parameters and the physicochemical properties of drugs. The in vivo application of high-voltage pulses is well tolerated, but muscle contractions are usually induced. The electrode and patch design is an important issue to reduce the discomfort of the electrical treatment in humans. This review presents the main findings in the field of electroporation-namely, transdermal drug delivery. Particular attention is paid to proposed enhancement mechanisms and trends in the field of topical and transdermal delivery.
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Affiliation(s)
- José Juan Escobar-Chávez
- División de Estudios de Posgrado Tecnología Farmacéutica, Facultad de Estudios Superiores Cuautitlán-Universidad Nacional Autónoma de México, Cuautitlán Izcalli, Estado de México, México.
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47
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Özcan İ, Abacı Ö, Uztan AH, Aksu B, Boyacıoğlu H, Güneri T, Özer Ö. Enhanced topical delivery of terbinafine hydrochloride with chitosan hydrogels. AAPS PharmSciTech 2009; 10:1024-31. [PMID: 19662536 DOI: 10.1208/s12249-009-9299-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2009] [Accepted: 07/27/2009] [Indexed: 11/30/2022] Open
Abstract
Chitosan-based carriers have important potential applications for the administration of drugs. In the present study, topical gel formulations of terbinafine hydrochloride (T-HCl) were prepared using different types of chitosan at different molecular weight, and the antifungal inhibitory activity was evaluated to suggest an effective formulation for the treatment of fungal infections. The characteristics of gel formulations were determined with viscosity measurements and texture profile analysis. Stability studies were performed at different temperatures during 3 months. The ex vivo permeation properties were studied through rat skin by using Franz diffusion cells. The antifungal inhibitory activity of formulations on Candida species and filamentous fungi was also examined with agar-cup method. The microbiological assay was found suitable for determination of in vitro antifungal activity of T-HCl. A marketed product was used to compare the results. The antifungal activity of T-HCl significantly increased when it was introduced into the chitosan gels. A higher drug release and the highest zone of inhibition were obtained from gels prepared with the lowest molecular weight chitosan (Protasan UP CL 213) compared to that of other chitosan gels and marketed product. These results indicated the advantages of the suggested formulations for topical antifungal therapy against Candida species and filamentous fungi.
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48
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Al-Kassas RS, El-Khatib MM. Ophthalmic controlled release in situ gelling systems for ciprofloxacin based on polymeric carriers. Drug Deliv 2009; 16:145-52. [DOI: 10.1080/10717540802689008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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49
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Hydrogel nanoparticles in drug delivery. Adv Drug Deliv Rev 2008; 60:1638-49. [PMID: 18840488 DOI: 10.1016/j.addr.2008.08.002] [Citation(s) in RCA: 1158] [Impact Index Per Article: 72.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2008] [Accepted: 08/08/2008] [Indexed: 11/20/2022]
Abstract
Hydrogel nanoparticles have gained considerable attention in recent years as one of the most promising nanoparticulate drug delivery systems owing to their unique potentials via combining the characteristics of a hydrogel system (e.g., hydrophilicity and extremely high water content) with a nanoparticle (e.g., very small size). Several polymeric hydrogel nanoparticulate systems have been prepared and characterized in recent years, based on both natural and synthetic polymers, each with its own advantages and drawbacks. Among the natural polymers, chitosan and alginate have been studied extensively for preparation of hydrogel nanoparticles and from synthetic group, hydrogel nanoparticles based on poly (vinyl alcohol), poly (ethylene oxide), poly (ethyleneimine), poly (vinyl pyrrolidone), and poly-N-isopropylacrylamide have been reported with different characteristics and features with respect to drug delivery. Regardless of the type of polymer used, the release mechanism of the loaded agent from hydrogel nanoparticles is complex, while resulting from three main vectors, i.e., drug diffusion, hydrogel matrix swelling, and chemical reactivity of the drug/matrix. Several crosslinking methods have been used in the way to form the hydrogel matix structures, which can be classified in two major groups of chemically- and physically-induced crosslinking.
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Manipulation of corticosteroid release from a transiently supersaturated topical metered dose aerosol using a residual miscible co-solvent. Pharm Res 2008; 25:2573-80. [PMID: 18668352 DOI: 10.1007/s11095-008-9675-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2008] [Accepted: 06/19/2008] [Indexed: 10/21/2022]
Abstract
PURPOSE The creation of supersaturation transiently after application overcomes the issue of drug instability. However, if the solvents used to drive supersaturation evaporate too quickly, drug recrystallisation or rapid film drying can occur which will inhibit drug release. As such the effects of a residual solvent, poly(ethylene glycol) 400 (PEG), on the release, mobility and supersaturation kinetics of a transiently supersaturated formulation were studied. MATERIALS AND METHODS Metered dose aerosol (MDA) formulations consisting of hydrofluoroalkane 134a, ethanol, poly(vinyl pyrrolidone) K90, beclomethasone dipropionate (BDP), and 0%, 5% or 10% w/w PEG were prepared in canisters sealed with metered dose valves and tested for release and adhesion over time. RESULTS The addition of 10% PEG to the MDA formulation resulted in a significant reduction (p < 0.05) in steady state drug release rate (230.4 +/- 17.3 microg/cm(2)/h for 0% PEG MDA, 83.6 +/- 4.9 microg/cm(2)/h for 10% PEG MDA). The presence of PEG caused a delay in dose depletion (2 h for 0% PEG MDA versus 4 h for 10% PEG), retarded supersaturation kinetics and increased film drying time. CONCLUSION Whilst equivalent amounts of BDP were released, the residual solvent altered the drug release profile to achieve more constant delivery.
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