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https://www.readbyqxmd.com/read/29349520/experimental-study-of-5-fluorouracil-encapsulated-ethosomes-combined-with-co2-fractional-laser-to-treat-hypertrophic-scar
#1
Zhen Zhang, Jun Chen, Jun Huang, Yan Wo, Yixin Zhang, Xiangdong Chen
OBJECTIVE: This study is designed to explore permeability of ethosomes encapsulated with 5-florouracil (5-FU) mediated by CO2 fractional laser on hypertrophic scar tissues. Moreover, therapeutic and duration effect of CO2 fractional laser combined with 5-FU encapsulated ethosomes in rabbit ear hypertrophic scar model will be evaluated. METHODS: The permeated amount of 5-FU and retention contents of 5-FU were both determined by high-performance liquid chromatography (HPLC)...
January 18, 2018: Nanoscale Research Letters
https://www.readbyqxmd.com/read/29336262/ethosomes-as-novel-vesicular-carrier-an-overview-of-the-principle-preparation-and-its-applications
#2
Sanjoy Kumar Das, Soumalya Chakraborty, Chhandita Roy, Rajan Rajabalaya, Amal Widaad Mohaimin, Jasmina Khanam, Arunabha Nanda, Sheba R David
BACKGROUND: In the study of lipid vesicular carriers in permeation enhancement of drug molecules across skin after the success story of liposomes, ethosomes are a recent addition. There are a number of published reviews but still, there is a lack of reviews representing various aspects in a systematic way with a detailed description of current research works. This review serves to fill this deficiency along with a special emphasize on its preparation methods and application. METHODS: Information was collected from previously published literatures which were represented after analysis in terms of various aspects such as principles, composition, preparation, mechanism of penetration, modified forms, characterization, marketed preparation and its application...
January 15, 2018: Current Drug Delivery
https://www.readbyqxmd.com/read/29318969/confronting-penetration-threshold-via-fluidic-terpenoid-nanovesicles
#3
Kamla Pathak, Ankur Vaidya, Vijay Sharma
BACKGROUND: Improvisation of the nanosized vesicular systems has led to a series of useful developments including the deformable vesicles namely transfersomes, ethosomes and invasomes. While the former two have been explored extensively, literature on invasomes is relatively scanty. METHOD: Invasomal formulations researched for various applications have been reviewed using search engine "Scopus". The present review focuses on the update on the research activity on effectiveness and permeation enhancing effects of invasomes for dermal and topical delivery...
January 8, 2018: Current Drug Delivery
https://www.readbyqxmd.com/read/29247361/biocompatible-5-aminolevulinic-acid-au-nanoparticle-loaded-ethosomal-vesicles-for-in-vitro-transdermal-synergistic-photodynamic-photothermal-therapy-of-hypertrophic-scars
#4
Zheng Zhang, Yunsheng Chen, Jiayue Ding, Chunlei Zhang, Amin Zhang, Dannong He, Yixin Zhang
Biocompatible 5-aminolevulinic acid/Au nanoparticle-loaded ethosomal vesicle (A/A-ES) is prepared via ultrasonication for synergistic transdermal photodynamic/photothermal therapy (PDT/PTT) of hypertrophic scar (HS). Utilizing ultrasonication, Au nanoparticles (AuNPs) are synthesized and simultaneously loaded in ethosomal vesicles (ES) without any toxic agents, and 5-aminolevulinic acid (ALA) is also loaded in ES with 20% of the entrapment efficiency (EE). The prepared A/A-ES displays strong absorbance in 600-650 nm due to the plasmonic coupling effect between neighboring AuNPs in the same A/A-ES, which can simultaneously stimulate A/A-ES to produce heat and enhance quantum yields of reactive oxygen species (ROS) by using 632 nm laser...
December 15, 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/29238164/a-novel-transdermal-nanoethosomal-gel-of-betahistine-dihydrochloride-for-weight-gain-control-in-vitro-and-in-vivo-characterization
#5
Shahira F El-Menshawe, Adel Ahmed Ali, Abdelkhalk Ali Halawa, Ahmed Sg Srag El-Din
Background: Betahistine dihydrochloride (BDH) is a histamine analog used to control weight gain, with short elimination half-life and gastric irritation as side effects. Objective: The aim of the current investigation is to formulate and optimize a topical BDH ethosomal gel for weight gain control. Materials and methods: Box-Behnken design was applied to study the effect of independent variables: phosphatidylcholine (PC), propylene glycol (PG), and ethanol on vesicle size; entrapment efficiency; % drug release; and flux...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29219057/formulation-optimization-and-in-vitro-and-in-vivo-evaluation-of-lornoxicam-ethosomal-gels-with-penetration-enhancers
#6
Keke Li, Shanshan Gao, Baocheng Tian, Yanan Shi, Qingzhi Lv, Jingtian Han
BACKGROUND: Ethosomes, a novel type of percutaneous drug delivery carrier with a lipid bilayer structure, penetrate the skin barrier due to their deformability and malleability, and presence of ethanol that fluidizes lipids in the skin. In order to further enhance the delivery of drugs through the skin, penetration enhancers are widely used. OBJECTIVE: The objective of this work was to develop an optimized formulation of lornoxicam ethosomal gels, investigate skin permeability with the addition of penetration enhancers, and evaluate the in vivo pharmacodynamics of these formulations...
December 7, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/29111097/lipid-nanocarriers-as-skin-drug-delivery-systems-properties-mechanisms-of-skin-interactions-and-medical-applications
#7
REVIEW
M Sala, R Diab, A Elaissari, H Fessi
During the past decades, lipid nanocarriers are gaining momentum with their multiple advantages for the management of skin diseases. Lipid nanocarriers enable to target the therapeutic payload to deep skin layers or even to reach the blood circulation making them a promising cutting-edge technology. Lipid nanocarriers refer to a large panel of drug delivery systems. Lipid vesicles are the most conventional, known to be able to carry lipophilic and hydrophilic active agents. A variety of lipid vesicles with high flexibility and deformability could be obtained by adjusting their composition; namely ethosomes, transfersomes and penetration enhancer lipid vesicles which achieve the best results in term of skin permeation...
October 27, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29061106/potential-enhancement-and-targeting-strategies-of-polymeric-and-lipid-based-nanocarriers-in-dermal-drug-delivery
#8
Emine Kahraman, Sevgi Güngör, Yıldız Özsoy
Nanocarriers used for alternative drug-delivery strategies have gained interest due to improved penetration and delivery of drugs into specific regions of the skin in recent years. Dermal drug delivery via polymeric-based nanocarriers (polymeric nanoparticles, micelles, dendrimers) and lipid-based nanocarriers (solid-lipid nanoparticles and nanostructured lipid carriers, vesicular nanocarriers including liposomes, niosomes, transfersomes and ethosomes) has been widely investigated. Although penetration of nanocarriers through the intact skin could be restricted, these carriers are particularly considered as feasible for the treatment of dermatological diseases in which the skin barrier is disrupted and also for follicular delivery of drugs for management of skin disorders such as acne...
November 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28990515/recent-advances-and-perspectives-in-liposomes-for-cutaneous-drug-delivery
#9
Amanda C Caritá, Josimar O Eloy, Marlus Chorilli, Robert J Lee, Gislaine Ricci Leonardi
The cutaneous route is attractive for the delivery of drugs in the treatment of a wide variety of diseases. However the stratum corneum (SC) is an effective barrier that hampers skin penetration. Within this context, liposomes emerge as a potential carrier for improving topical delivery of therapeutic agents. In this review, we aimed to discuss key aspects for the topical delivery by drug-loaded liposomes. Phospholipid type and phase transition temperature have been shown to affect liposomal topical delivery...
October 9, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28977352/the-optimized-hplc-method-for-quantitative-analysis-of-phenylethyl-resorcinol-loaded-in-the-novel-vesicle-carriers-and-permeated-in-in-vitro-skin-permeation-study
#10
Tunyaluk Limsuwan, Prapaporn Boonme, Thanaporn Amnuaikit
The high performance liquid chromatography (HPLC) was used for quantitative determination of phenylethyl resorcinol (PR) which was loaded in the novel vesicle carriers including ethosome, invasome and transfersome formulations, and permeated into pig skin membrane and receptor fluid for skin permeation study. The reverse-phase chromatography was carried out with a C18 column (150 × 4.6 mm2, 5 μm, HypersilTM, Thermo Fisher Scientific Inc, USA) with the column temperature at 25°C. A mixture of acetonitrile-methanol-Milli-Q water in the ratio of 40:20:40%, v/v/v was used as a mobile phase by maintaining the flow rate at 0...
November 1, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28804723/ethosomes-of-phenylethyl-resorcinol-as-vesicular-delivery-system-for-skin-lightening-applications
#11
Tunyaluk Limsuwan, Prapaporn Boonme, Pasarat Khongkow, Thanaporn Amnuaikit
Ethosome formulations containing phenylethyl resorcinol (PR) were developed. The formulation was produced from 0.5% w/v PR, 0.5% w/v cholesterol from lanolin, 3% w/v L-α-phosphatidylcholine from soybean, 30% v/v absolute ethanol, and water up to 100% v/v. It was characterized by a vesicular size of 389 nm, low polydispersity index of 0.266, zeta potential of -34.19 ± 0.44 mV, high PR entrapment efficiency of 71%, and good stability on storage at 4 and 30°C at 75% RH for 4 months. In vitro studies using pig skin revealed that permeation coefficient of PR from ethosomes was significantly higher than that from liposomes...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28625748/comparison-of-liposomal-drug-formulations-for-transdermal-iontophoretic-drug-delivery
#12
K Malinovskaja-Gomez, S Espuelas, M J Garrido, J Hirvonen, T Laaksonen
This study was aimed to evaluate the in vitro transdermal direct/pulsed current iontophoretic delivery of an amphiphilic model compound from various lipid vesicle-encapsulated formulations compared to free-drug formulation. Conventional, pegylated, ultradeformable liposomes (transfersomes) and ethosomes loaded with a negatively charged drug diclofenac sodium (DS) were prepared and characterized. All the liposomes possessed an average size of ≈100-150nm and negative zeta potential. No changes in colloidal stability were detected after 8h incubation of any vesicle formulation under constant or pulsed iontophoretic current...
August 30, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28612545/-pharmacokinetics-of-curcumin-ethosomes-in-rats-in-vitro
#13
Jing Zhao, Yuan Li, Ming-Xin Shi, Xue Wang, Jing-Qing Zhang
OBJECTIVES: To study the oral phamacokinetics of curcumin ethosomes in rats. METHODS: Pharmacokinetics parameters were detected by DAS 2.1.1 software analysis through data of blood concentrations harvested from HPLC after oral administration of curcumin ethosomes in rats. RESULTS: Analyzed by non-compartmental method, the area under concentration-time curve from 0 to last time [AUC(0-72h)] of curcumin ethosomes was 1.6 times larger than that of free curcumin, the peak concentration (C max) of curcumin ethosomes was 1...
March 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28522423/sertaconazole-nitrate-loaded-nanovesicular-systems-for-targeting-skin-fungal-infection-in-vitro-ex-vivo-and-in-vivo-evaluation
#14
Menna M Abdellatif, Islam A Khalil, Mahmoud A F Khalil
The aim of this study was to develop different vesicular systems for sertaconazole nitrate and evaluate the ability of targeting deep skin layers to treat dermal fungal infection. Therefore, different phospholipid based nanovesicles, namely liposomes, glycerosomes, transferosmes and ethosomes were prepared and in-vitro evaluated for morphology, entrapment efficiency, vesicle size and zeta potential value, followed by ex-vivo evaluation through skin penetration and permeation. The selected vesicular formula was incorporated into gel base system and assessed by ex-vivo permeation visualization study using confocal laser scanning microscopy (CLSM)...
May 15, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28490875/mechanism-of-transdermal-permeation-promotion-of-lipophilic-drugs-by-ethosomes
#15
Li Yang, Lifang Wu, Dongze Wu, Deshun Shi, Tai Wang, Xiaoliang Zhu
Ethosomes can promote the penetration of lipophilic drugs into the skin, but the underlying mechanism is still unknown. The purpose of this study was to investigate the mechanism of transdermal permeation promotion of lipophilic drugs by ethosomes. The formulation of ethosomes was optimized using the Box-Behnken experimental design, in which Rhodamine B and 1-palmitoyl-2-{12-[(7-nitro-2-1,3-benzoxadiazol-4-yl)amino]dodecanoyl}-sn-glycero-3-phosphocholine were used to simulate a model lipophilic drug and act as a fluorescent tracer of ethosomal phospholipids, respectively...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28228078/nanocarriers-mediated-topical-drug-delivery-for-psoriasis-treatment
#16
Sevgi Güngör, Meriem Rezigue
BACKGROUND: Psoriasis is a chronic autoimmune inflammatory skin disease affecting 2 to 3% of people worldwide. Topical therapy as first option in the management of psoriasis is an attractive strategy by delivering drugs efficiently into target sites of disease, minimizing systemic side effects of drugs and ensuring high patient compliance. However, the delivery of antipsoriatic agents via conventional topical formulations is limited due to their poor percutaneous penetration and targeting into deeper layers of the skin...
February 22, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28228076/transdermal-drug-delivery-opportunities-and-challenges-for-controlled-delivery-of-therapeutic-agents-using-nanocarriers
#17
Balak Das Kurmi, Pawan Tekchandani, Rishi Paliwal, Shivani Rai Paliwal
BACKGROUND: Transdermal drug delivery represents an extremely attractive and innovative route across the skin owing to the possibility for achieving systemic effect of drugs. Present scenario demands a special focus on developing safe medicine with minimize toxic adverse effects related to most of the pharmacologically active agents. Transdermal drug delivery would be a focal paradigm which provides patient convenience, first-pass hepatic metabolism avoidance, local targeting and reduction in toxic effect related to various categories of drugs like, analgesics, anti-inflammatory, antibiotics, antiviral, anaesthetic, anticancer etc...
February 22, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28163981/current-advances-in-5-aminolevulinic-acid-mediated-photodynamic-therapy
#18
Connor Thunshelle, Rui Yin, Qiquan Chen, Michael R Hamblin
Kennedy and Pottier discovered that photodynamic therapy (PDT) could be carried out using a procedure consisting of topical application of the porphyrin-precursor, 5-aminolevulinic acid (ALA) to the skin, followed after some time by illumination with various light parameters in the 1980s. Since then, ALA-PDT has expanded enormously and now covers most aspects of dermatological disease. The purpose of this review is to discuss a range of ingenious strategies that investigators have devised for improving the overall outcome (higher efficiency and lower side effects) of ALA-PDT...
September 2016: Current Dermatology Reports
https://www.readbyqxmd.com/read/28121196/nanoethosomes-for-transdermal-delivery-of-tropisetron-hcl-multi-factorial-predictive-modeling-characterization-and-ex-vivo-skin-permeation
#19
Hanaa A Abdel Messih, Rania A H Ishak, Ahmed S Geneidi, Samar Mansour
OBJECTIVE: The aim of the present work is to exclusively optimize and model the effect of phospholipid type either egg phosphatidylcholine (EPC) or soybean phosphatidylcholine (SPC), together with other formulation variables, on the development of nano-ethosomal systems for transdermal delivery of a water-soluble antiemetic drug. Tropisetron HCl (TRO) is available as hard gelatin capsules and IV injections. The transdermal delivery of TRO is considered as a novel alternative route supposing to improve BAV as well as patient convenience...
June 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28004261/the-therapy-with-ethosomes-containing-5-fluorouracil-for-laryngotracheal-stenosis-in-rabbit-models
#20
Xiaohui Mao, Xuefeng Cheng, Zheng Zhang, Zhaoyan Wang, Zhentao Wang
The aim of this study is to evaluate the efficacy of ethosomes encapsulated with 5-fluorouracil (5-FU) in treatment of laryngotracheal stenosis in rabbit models. The 5-FU ethosome was prepared by the thin film hydration method, and the amorphous, size distribution and the encapsulation efficiency was investigated. The tracheal mucosa were scraped about 0.5 cm with a nylon brush to induce the scar in airway grow, then models were divided into three groups: 5-FU ethosome group, 5-FU group and saline group, drug were injected into scar of every group by paracentesis guided under endoscope, respectively...
April 2017: European Archives of Oto-rhino-laryngology
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