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Said M, Elsayed I, Aboelwafa AA, Elshafeey AH, Hassan M. Ocular Mucoadhesive and Biodegradable Sponge-Like Inserts for the Sustained and Controlled Delivery of Voriconazole; Preparation, D-optimal Factorial Optimization and in-vivo Evaluation. J Pharm Sci 2024; 113:961-973. [PMID: 37949171 DOI: 10.1016/j.xphs.2023.09.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 09/30/2023] [Accepted: 09/30/2023] [Indexed: 11/12/2023]
Abstract
The aim of this study was to formulate and optimize by statistical means mucoadhesive and biodegradable sponge-like inserts loaded with voriconazole (VCZ) which increases the contact time of the drug with the eye and sustain its release from the formula in a controlled manner. This avoids the pulsed effect reported for the drug suspension and results in reducing the number of drug instillations in the eye with the result of enhancing the patient compliance. Also, the sponge like nature of the insert reduces the foreign body sensation caused by other ocular solid dosage forms. They were prepared using casting/freeze-drying technique using five polymers namely high molecular weight chitosan (CH), sodium alginate (AL), sodium carboxy methyl cellulose (CMC), gellan gum (GG) and xanthan gum (XG). The prepared inserts were subjected to evaluations of their visual appearance, weight variation, drug content, surface pH, in-vitro release (percent drug released after 1h (Q1 (%)), mean dissolution time (MDT) and dissolution efficiency (DE)) in addition to kinetic analysis of the release data, water uptake, mucoadhesion and rheology of the forming plain polymer solution at the maximum rate of shear. The independent variables of the D-optimal factorial design were the polymer type and concentration while Q1 (%), MDT, DE, % water uptake after 15 minutes and rheology at the maximum rate of shear were chosen as dependant variables. The performed optimization process using design expert software showed an optimum formula consisting of 2 % GG. It showed slow release behavior compared to the drug suspension. FTIR and DSC studies showed that there is no interaction between VCZ and GG. The optimum formula has good in-vitro mucoadhesive properties and pH in the safe ocular range. Moreover, it showed promising in-vivo results of rapid hydration and gelling in addition to good mucoadhesive behavior when instilled in the eye, high ocular safety and biocompatibility, sustained antifungal activity in comparison to the drug suspension and finally biodegradation. So, it may be taken into consideration as an outstanding carrier for the ocular delivery of VCZ.
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Affiliation(s)
- Mayada Said
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | - Ibrahim Elsayed
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt; Department of Pharmaceutical Sciences, College of Pharmacy and Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, UAE
| | - Ahmed A Aboelwafa
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Ahmed H Elshafeey
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Mariam Hassan
- Department of Microbiology and immunology, Faculty of Pharmacy, Cairo University, Cairo, Egypt; Department of Microbiology and Immunology, Faculty of Pharmacy, Galala University, New Galala City, Suez, Egypt
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Szyk P, Czarczynska-Goslinska B, Mlynarczyk DT, Ślusarska B, Kocki T, Ziegler-Borowska M, Goslinski T. Polymer-Based Nanoparticles as Drug Delivery Systems for Purines of Established Importance in Medicine. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2647. [PMID: 37836288 PMCID: PMC10574807 DOI: 10.3390/nano13192647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023]
Abstract
Many purine derivatives are active pharmaceutical ingredients of significant importance in the therapy of autoimmune diseases, cancers, and viral infections. In many cases, their medical use is limited due to unfavorable physicochemical and pharmacokinetic properties. These problems can be overcome by the preparation of the prodrugs of purines or by combining these compounds with nanoparticles. Herein, we aim to review the scientific progress and perspectives for polymer-based nanoparticles as drug delivery systems for purines. Polymeric nanoparticles turned out to have the potential to augment antiviral and antiproliferative effects of purine derivatives by specific binding to receptors (ASGR1-liver, macrophage mannose receptor), increase in drug retention (in eye, intestines, and vagina), and permeation (intranasal to brain delivery, PEPT1 transport of acyclovir). The most significant achievements of polymer-based nanoparticles as drug delivery systems for purines were found for tenofovir disoproxil in protection against HIV, for acyclovir against HSV, for 6-mercaptopurine in prolongation of mice ALL model life, as well as for 6-thioguanine for increased efficacy of adoptively transferred T cells. Moreover, nanocarriers were able to diminish the toxic effects of acyclovir, didanosine, cladribine, tenofovir, 6-mercaptopurine, and 6-thioguanine.
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Affiliation(s)
- Piotr Szyk
- Chair and Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznań, Poland;
| | - Beata Czarczynska-Goslinska
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznań, Poland;
| | - Dariusz T. Mlynarczyk
- Chair and Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznań, Poland;
| | - Barbara Ślusarska
- Department of Family and Geriatric Nursing, Faculty of Health Sciences, Medical University of Lublin, 20-081 Lublin, Poland;
| | - Tomasz Kocki
- Department of Experimental and Clinical Pharmacology, Medical University of Lublin, 20-081 Lublin, Poland;
| | - Marta Ziegler-Borowska
- Department of Biomedical Chemistry and Polymer Science, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland;
| | - Tomasz Goslinski
- Chair and Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznań, Poland;
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Ashames A, Pervaiz F, Al-Tabakha M, Khalid K, Hassan N, Shoukat H, Buabeid M, Murtaza G. Synthesis of cross-linked carboxymethyl cellulose and poly (2-acrylamido-2-methylpropane sulfonic acid) hydrogel for sustained drug release optimized by Box-Behnken Design. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zong S, Liu Y, Park HJ, Ye M, Li J. Curcumin solid dispersion based on three model acrylic polymers: formulation and release properties. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e18946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Shuai Zong
- Hefei University of Technology, PR China; Yangzhou University, PR China
| | - Yuting Liu
- Hefei University of Technology, PR China
| | | | - Ming Ye
- Hefei University of Technology, PR China
| | - Jinglei Li
- Hefei University of Technology, PR China
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Silva IA, Lima AL, Gratieri T, Gelfuso GM, Sa-Barreto LL, Cunha-Filho M. Compatibility and stability studies involving polymers used in fused deposition modeling 3D printing of medicines. J Pharm Anal 2021; 12:424-435. [PMID: 35811629 PMCID: PMC9257448 DOI: 10.1016/j.jpha.2021.09.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 09/03/2021] [Accepted: 09/17/2021] [Indexed: 02/07/2023] Open
Abstract
One of the challenges in developing three-dimensional printed medicines is related to their stability due to the manufacturing conditions involving high temperatures. This work proposed a new protocol for preformulation studies simulating thermal processing and aging of the printed medicines, tested regarding their morphology and thermal, crystallographic, and spectroscopic profiles. Generally, despite the strong drug-polymer interactions observed, the chemical stability of the model drugs was preserved under such conditions. In fact, in the metoprolol and Soluplus® composition, the drug's solubilization in the polymer produced a delay in the drug decomposition, suggesting a protective effect of the matrix. Paracetamol and polyvinyl alcohol mixture, in turn, showed unmistakable signs of thermal instability and chemical decomposition, in addition to physical changes. In the presented context, establishing protocols that simulate processing and storage conditions may be decisive for obtaining stable pharmaceutical dosage forms using three-dimensional printing technology. Preformulation protocol was proposed to guide the development of 3D-printed medicines. Drug models were able to support thermal processing equivalent to FDM/3D printing. Soluplus showed a protective effect for metoprolol after double heating and aging. Paracetamol and PVA mixture demonstrated incompatibility under heating processing.
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Said M, Aboelwafa AA, Elshafeey AH, Elsayed I. Central composite optimization of ocular mucoadhesive cubosomes for enhanced bioavailability and controlled delivery of voriconazole. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102075] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Escalona-Rayo CF, Serrano-Castañeda P, López-Cervantes M, Escobar-Chávez JJ. Optimization of Unidirectional Mucoadhesive Buccal Patches Based on Chitosan and Pluronic® F-127 for Metoprolol Controlled Release: In Vitro and Ex Vivo Evaluations. J Pharm Innov 2019. [DOI: 10.1007/s12247-019-09401-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abd El-Bary A, Kamal Ibrahim H, Haza'a BS, Al Sharabi I. Formulation of sustained release bioadhesive minitablets containing solid dispersion of levofloxacin for once daily ocular use. Pharm Dev Technol 2019; 24:824-838. [PMID: 30931674 DOI: 10.1080/10837450.2019.1602631] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
This study aimed to increase ocular residence time of levofloxacin by formulation into zero-order sustained release mucoadhesive minitablets for once daily administration using a hydrophobic-hydrophilic polymeric matrix. Levofloxacin was first formulated into solid dispersion with different ratios of Eudragit® RS then the resulting solid dispersion was mixed with different concentrations of Carbopol® and other excipients to be finally compressed into minitablets. A 24 full factorial design was employed to estimate the effects and interactions of two formulation factors, and to establish their relationships with selected responses in the developed minitablets. The studied factors were: drug to Eudragit® RS ratio, and percent of Carbopol® in the minitablets. Sixteen ocular minitablets formulations were prepared and evaluated for the cumulative percentages drug release at 6, 12, and 24 h, as well as mucoadhesion time, mucoadhesive strength, and swelling index as response variables. After optimizing the responses, the optimized formulation was found to be stable on sterilization using gamma-irradiation and storage at 40 °C/75% RH for six months. In vivo testing of the optimized formulation showed that the minitablets extended levofloxacin release up to 24 h without causing any ocular irritation. The optimized formulation exhibited superior microbiological activity compared to the commercial product.
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Affiliation(s)
- Ahmed Abd El-Bary
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Cairo University , Cairo , Egypt
| | - Howida Kamal Ibrahim
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Cairo University , Cairo , Egypt
| | - Balqees Saeed Haza'a
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Cairo University , Cairo , Egypt
| | - Ibrahim Al Sharabi
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Cairo University , Cairo , Egypt.,b Department of Pharmaceutics, College of Pharmacy , King Khalid University , Abha , Kingdom of Saudi Arabia
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Avgerinos T, Kantiranis N, Panagopoulou A, Malamataris S, Kachrimanis K, Nikolakakis I. Mechanical properties and drug release of venlafaxine HCl solid mini matrices prepared by hot-melt extrusion and hot or ambient compression. Drug Dev Ind Pharm 2017; 44:338-348. [PMID: 29023145 DOI: 10.1080/03639045.2017.1391839] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Objective/significance: To elucidate the role of plasticizers in different mini matrices and correlate mechanical properties with drug release. METHODS Cylindrical pellets were prepared by hot-melt extrusion (HME) and mini tablets by hot (HC) and ambient compression (AC). Venlafaxine HCl was the model drug, Eudragit® RSPO the matrix former and citric acid or Lutrol® F127 the plasticizers. The matrices were characterized for morphology, crystallinity, and mechanical properties. The influence of plasticizer's type and content on the extrusion pressure (Pe) during HME and ejection during tableting was examined and the mechanical properties were correlated with drug release parameters. RESULTS Resistance to extrusion and tablet ejection force were reduced by Lutrol® F127 which also produced softer and weaker pellets with faster release, but harder and stronger HC tablets with slower release. HME pellets showed greater tensile strength (T) and 100 times slower release than tablets. Pe correlated with T and resistance to deformation of the corresponding pellets (r2 = 0.963 and 0.945). For both HME and HC matrices the decrease of drug release with T followed a single straight line (r2 = 0.990) and for HME the diffusion coefficient (De) and retreat rate constant (kb) decreased linearly with T (r2 = 0.934 and 0.972). CONCLUSIONS Lutrol® F127 and citric acid are efficient plasticizers and Lutrol® F127 is a thermal binder/lubricant in HC compression. The different bonding mechanisms of the matrices were reflected in the mechanical strength and drug release. Relationships established between T and drug release parameters for HME and HC matrices may be useful during formulation work.
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Affiliation(s)
- Theodoros Avgerinos
- a Department of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Nikolaos Kantiranis
- a Department of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Athanasia Panagopoulou
- a Department of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Stavros Malamataris
- a Department of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Kyriakos Kachrimanis
- a Department of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Ioannis Nikolakakis
- a Department of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences , Aristotle University of Thessaloniki , Thessaloniki , Greece
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Kamel R, Abbas H. A multi-microcarrier of metronidazole-biopolymers complexes as a potential vaginal delivery system. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1320660] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Rabab Kamel
- Department of Pharmaceutical Technology, National Research Center, Cairo, Egypt
| | - Haidy Abbas
- Department of Pharmaceutics, Damanhour University, Damanhur, Egypt
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Patra CN, Priya R, Swain S, Kumar Jena G, Panigrahi KC, Ghose D. Pharmaceutical significance of Eudragit: A review. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2017. [DOI: 10.1016/j.fjps.2017.02.001] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Lu M, Xiong D, Sun W, Yu T, Hu Z, Ding J, Cai Y, Yang S, Pan B. Sustained release ivermectin-loaded solid lipid dispersion for subcutaneous delivery: in vitro and in vivo evaluation. Drug Deliv 2017; 24:622-631. [PMID: 28282989 PMCID: PMC8240974 DOI: 10.1080/10717544.2017.1284945] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This work aimed to develop a sustained release solid dispersion of ivermectin (IVM-SD) in a lipid matrix (hydrogenated castor oil, HCO) for subcutaneous delivery. Solvent-melting technology was employed to prepare IVM-SDs using HCO. The physicochemical properties of the IVM-SDs were evaluated by scanning electron microscopy (SEM), X-ray powder diffraction (XRPD), and Fourier transform infrared spectroscopy (FTIR). The release of IVM from IVM-SDs was evaluated with HPLC in vitro. Pharmacokinetics of IVM was studied in rabbits following a single subcutaneous administration of IVM-SD formulations. The efficacy of IVM-SD against the ear mange mite was evaluated in rabbits. IVM was completely dispersed in HCO in an amorphous state at a drug:carrier ratio lower than 1:3. No chemical interactions between drug and carrier were found besides hydrogen bonding for the amorphous IVM-SDs. The amorphous IVM-SDs formulations exhibited a sustained release of IVM versus physical mixtures (PMs) of IVM and HCO. The drug release decreased as the drug:carrier ratios decreased, and the release kinetics of IVM were controlled via diffusion. Cytotoxicity of IVM-SD to MDCK cells was lower than native IVM. The IVM plasma concentration of SD1:3 remained above 1 ng/mL for 49 d. Higher AUC, MRT, and Tmax values were obtained at a SD1:3 relative to the IVM group. The IVM-SD improved almost 1.1-fold bioavailability of drug compared with IVM in rabbits. IVM-SD could provide longer persistence against rabbit’s ear mites than a commercial IVM injection. This study shows that these solid lipid dispersions are a promising approach for the development of subcutaneous IVM formulations.
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Affiliation(s)
- Mengmeng Lu
- a The Department of Veterinary Parasitology, College of Veterinary Medicine, China Agriculture University , Hai Dian District , Beijing , China
| | - Dan Xiong
- a The Department of Veterinary Parasitology, College of Veterinary Medicine, China Agriculture University , Hai Dian District , Beijing , China
| | - Weiwei Sun
- a The Department of Veterinary Parasitology, College of Veterinary Medicine, China Agriculture University , Hai Dian District , Beijing , China
| | - Tong Yu
- a The Department of Veterinary Parasitology, College of Veterinary Medicine, China Agriculture University , Hai Dian District , Beijing , China
| | - Zixia Hu
- a The Department of Veterinary Parasitology, College of Veterinary Medicine, China Agriculture University , Hai Dian District , Beijing , China
| | - Jiafeng Ding
- a The Department of Veterinary Parasitology, College of Veterinary Medicine, China Agriculture University , Hai Dian District , Beijing , China
| | - Yunpeng Cai
- a The Department of Veterinary Parasitology, College of Veterinary Medicine, China Agriculture University , Hai Dian District , Beijing , China
| | - Shizhuang Yang
- a The Department of Veterinary Parasitology, College of Veterinary Medicine, China Agriculture University , Hai Dian District , Beijing , China
| | - Baoliang Pan
- a The Department of Veterinary Parasitology, College of Veterinary Medicine, China Agriculture University , Hai Dian District , Beijing , China
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Salama AH, Mahmoud AA, Kamel R. A Novel Method for Preparing Surface-Modified Fluocinolone Acetonide Loaded PLGA Nanoparticles for Ocular Use: In Vitro and In Vivo Evaluations. AAPS PharmSciTech 2016; 17:1159-72. [PMID: 26589410 DOI: 10.1208/s12249-015-0448-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 11/06/2015] [Indexed: 11/30/2022] Open
Abstract
Our objective was to prepare nanoparticulate system using a simple yet attractive innovated method as an ophthalmic delivery system for fluocinolone acetonide to improve its ocular bioavailability. Poly(lactic-co-glycolic acid) (PLGA) nanoparticles were prepared by adopting thin film hydration method using PLGA/poloxamer 407 in weight ratios of 1:5 and 1:10. PLGA was used in 75/25 and 50/50 copolymer molar ratio of DL-lactide/glycolide. Results revealed that using PLGA with lower glycolic acid monomer ratio exhibited high particle size (PS), zeta potential (ZP) and drug encapsulation efficiency (EE) values with slow drug release pattern. Also, doubling the drug concentration during nanoparticles preparation ameliorated its EE to reach almost 100%. Furthermore, studies for separating the un-entrapped drug in nanoparticles using centrifugation method at 20,000 rpm for 30 min showed that the separated clear supernatant contained nanoparticles encapsulating an important drug amount. Therefore, separation of un-entrapped drug was carried out by filtrating the preparation using 20-25 μm pore size filter paper to avoid drug loss. Aiming to increase the PLGA nanoparticles mucoadhesion ability, surface modification of selected formulation was done using different amount of stearylamine and chitosan HCl. Nanoparticles coated with 0.1% w/v chitosan HCl attained most suitable results of PS, ZP and EE values as well as high drug release properties. Transmission electron microphotographs illustrated the deposition of chitosan molecules on the nanoparticles surfaces. Pharmacokinetic studies on Albino rabbit's eyes using HPLC indicated that the prepared novel chitosan-coated PLGA nanoparticles subjected to separation by filtration showed rapid and extended drug delivery to the eye.
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Debotton N, Dahan A. Applications of Polymers as Pharmaceutical Excipients in Solid Oral Dosage Forms. Med Res Rev 2016; 37:52-97. [DOI: 10.1002/med.21403] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 06/07/2016] [Accepted: 06/24/2016] [Indexed: 01/10/2023]
Affiliation(s)
- Nir Debotton
- Department of Chemical Engineering; Shenkar College of Engineering and Design; Ramat-Gan Israel
| | - Arik Dahan
- Department of Clinical Pharmacology, School of Pharmacy, Faculty of Health Sciences; Ben-Gurion University of the Negev; Beer-Sheva Israel
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Singh J, Garg T, Rath G, Goyal AK. Advances in nanotechnology-based carrier systems for targeted delivery of bioactive drug molecules with special emphasis on immunotherapy in drug resistant tuberculosis – a critical review. Drug Deliv 2015; 23:1676-98. [DOI: 10.3109/10717544.2015.1074765] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kim HJ, Shin DH, Lim EA, Kim JS. Sustained-release formulation of sarpogrelate hydrochloride. Arch Pharm Res 2014; 38:35-41. [PMID: 24895147 DOI: 10.1007/s12272-014-0415-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 05/19/2014] [Indexed: 11/28/2022]
Abstract
Sarpogrelate HCl (SGL) has been used clinically as an anti-platelet drug for the prevention of thrombus, proliferation of vascular smooth muscle cells and platelet aggregation. This study was to investigate the bioavailability of sustained-release solid dispersion (SR-SD) formulation of SGL to sustain the drug release for up to 24 h. The SR-SD formulations with various drug-to-polymer ratios were prepared by hot-melt coating method. Waxy material carriers such as Compritol 888 ATO and stearyl alcohol were added to SGL and different amounts of HPMC K 15 (HPMC) were mixed. Dissolution profile and bioavailability were compared to SGL powder. Compritol 888 ATO showed the controlling effect of the initial release rate of drug from the formulation and the controlling effect was increased for 24 h by addition of HPMC. As the amount of HPMC increased, the drug release rate from SR-SD decreased because HPMC formed gel layer in aqueous media. Pharmacokinetic study showed that the AUC and Tmax of SGL in SR-SD formulation increased as compared to the SGL powder. These data suggest that the SR-SD formulation effectively controls the drug release rate for 24 h, hoping to be useful for the development of once-a-day formulation of SGL.
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Affiliation(s)
- Hye Jin Kim
- Research Center for Cell Fate Control (RCCFC) and College of Pharmacy, Sookmyung Women's University, Chungpa-Dong 2-Ga, Yongsan-Gu, Seoul, 140-742, Korea
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Chandak AR, Prasad Verma PR. Eudragit-based transdermal delivery system of pentazocine: Physico-chemical, in vitro and in vivo evaluations. Pharm Dev Technol 2013; 15:296-304. [PMID: 22716470 DOI: 10.3109/10837450903188501] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The present study was aimed to develop a matrix-type transdermal formulation of pentazocine using mixed polymeric grades of Eudragit RL/RS. The possible interaction between drug and polymer used were characterized by FTIR, DSC and X-RD. X-RD study indicates a change of state of drug from crystalline to amorphous in the matrix films prepared. The matrix transdermal films of pentazocine were evaluated for physical parameters and in vitro dissolution characteristic using Cygnus' sandwich patch holder. Irrespective of the grades of Eudragit polymer used, the thickness and weight per patch were similar. In vitro dissolution study revealed that, with an increase in the proportion of Eudragit RS (slightly permeable) type polymer, dissolution half life (t(50%)) increases and dissolution rate constant value decreases. Selected formulations were chosen for these pharmacokinetic studies in healthy rabbits. The relevance of difference in the in vitro dissolution rate profile and pharmacokinetic parameters (C(max), t(max), AUC((s)), t(1/2,) K(el), and MRT) were evaluated statistically. In vitro dissolution profiles (DRC and t(50%)) and pharmacokinetic parameters showed a significant difference between test products (P<0.01). Quantitatively good correlation was found between the percentage of drug absorbed from the transdermal patches and AUC((s)).
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Huang C, Kan J, Liu X, Ma F, Tran BH, Zou Y, Wang S, Zhu YZ. Cardioprotective effects of a novel hydrogen sulfide agent-controlled release formulation of S-propargyl-cysteine on heart failure rats and molecular mechanisms. PLoS One 2013; 8:e69205. [PMID: 23874913 PMCID: PMC3706411 DOI: 10.1371/journal.pone.0069205] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Accepted: 06/05/2013] [Indexed: 01/29/2023] Open
Abstract
Objective Heart failure (HF) is one of the most serious diseases worldwide. S-propargyl-cysteine (SPRC), a novel modulator of endogenous hydrogen sulfide, is proved to be able to protect against acute myocardial ischemia. In order to produce more stable and sustainable hydrogen sulfide, we used controlled release formulation of SPRC (CR-SPRC) to elucidate possible cardioprotective effects on HF rats and investigate involved mechanisms on apoptosis and oxidation. Methods Left coronary artery was occluded to induce HF model of rat. The survival rats were randomly divided into 7 groups after 24 hours and treated with drugs for 6 weeks. Echocardiographic indexes were recorded to determine cardiac function. TTC staining was performed to determine infarct size. Plasmatic level of hydrogen sulfide was detected by modified sulfide electrode. Activity of enzyme and expression of protein were determined by colorimetry and Western blot, respectively. Results The cardioprotective effects of CR-SPRC on HF rats were confirmed by significant reduction of infarct size and improvement of cardiac function, with better effects compared to normal SPRC. CR-SPRC modulated antioxidant defenses by preserving levels of GSH, CAT and SOD and reducing CK leakage. In addition, CR-SPRC elevated ratio of Bcl-2/Bax and inhibited activity of caspases to protect against myocardial apoptosis. The cardioprotective effects of CR-SPRC were mediated by hydrogen sulfide. Conclusions All experiment data indicated cardioprotective effects of CR-SPRC on HF rats. More importantly, CR-SPRC exerted better effects than normal SPRC in all respects, providing a new perspective on hydrogen sulfide-mediated drug therapy.
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Affiliation(s)
- Chengrong Huang
- School of Pharmacy, Fudan University, Shanghai, Shanghai, China
| | - Juntao Kan
- School of Pharmacy & Institutes of Biomedical Sciences, Fudan University, Shanghai, Shanghai, China
| | - Xu Liu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
| | - Fenfen Ma
- School of Pharmacy, Fudan University, Shanghai, Shanghai, China
| | - Ba Hieu Tran
- School of Pharmacy, Fudan University, Shanghai, Shanghai, China
| | - Yunzeng Zou
- Zhongshan Hospital & Institutes of Biomedical Sciences, Fudan University, Shanghai, Shanghai, China
| | - Shujun Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, China
- * E-mail: (YZZ); (SW)
| | - Yi Zhun Zhu
- School of Pharmacy & Institutes of Biomedical Sciences, Fudan University, Shanghai, Shanghai, China
- * E-mail: (YZZ); (SW)
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Study of the influence of selected variables on the preparation of prolonged release bioadhesive vaginal carbohydrate microspheres using experimental design. J Drug Deliv Sci Technol 2013. [DOI: 10.1016/s1773-2247(13)50037-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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20
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Giri TK, Kumar K, Alexander A, Ajazuddin, Badwaik H, Tripathi DK. A novel and alternative approach to controlled release drug delivery system based on solid dispersion technique. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.bfopcu.2012.07.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Kolakovic R, Laaksonen T, Peltonen L, Laukkanen A, Hirvonen J. Spray-dried nanofibrillar cellulose microparticles for sustained drug release. Int J Pharm 2012; 430:47-55. [DOI: 10.1016/j.ijpharm.2012.03.031] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Revised: 03/16/2012] [Accepted: 03/16/2012] [Indexed: 11/25/2022]
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22
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Barzegar-Jalali M, Alaei-Beirami M, Javadzadeh Y, Mohammadi G, Hamidi A, Andalib S, Adibkia K. Comparison of physicochemical characteristics and drug release of diclofenac sodium–eudragit® RS100 nanoparticles and solid dispersions. POWDER TECHNOL 2012. [DOI: 10.1016/j.powtec.2011.12.046] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Formulation optimization of solid dispersion of mosapride hydrochloride. Arch Pharm Res 2011; 34:1467-75. [DOI: 10.1007/s12272-011-0908-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2010] [Revised: 10/04/2010] [Accepted: 10/28/2010] [Indexed: 10/17/2022]
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24
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Tran PHL, Tran TTD, Park JB, Lee BJ. Controlled Release Systems Containing Solid Dispersions: Strategies and Mechanisms. Pharm Res 2011; 28:2353-78. [DOI: 10.1007/s11095-011-0449-y] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Accepted: 04/07/2011] [Indexed: 10/18/2022]
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25
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Tajarobi F, Abrahmsén-Alami S, Larsson A. Dissolution Rate Enhancement of Parabens in PEG Solid Dispersions and Its Influence on the Release from Hydrophilic Matrix Tablets. J Pharm Sci 2011; 100:275-83. [DOI: 10.1002/jps.22248] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2009] [Revised: 03/21/2010] [Accepted: 04/27/2010] [Indexed: 11/08/2022]
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26
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Gohel M, Nagori SA. Fabrication and evaluation of captopril modified-release oral formulation. Pharm Dev Technol 2009; 14:679-86. [DOI: 10.3109/10837450902922744] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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27
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Chandak AR, Verma PRP. Transdermal Delivery of Methotrexate Using Mixed Grades of Eudragit: Physico-Chemical, In-Vitro, and In-Vivo Evaluations. ACTA ACUST UNITED AC 2008. [DOI: 10.1080/10601330801937544] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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28
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Chandak AR, Verma PRP. Development and Evaluation of HPMC Based Matrices for Transdermal Patches of Tramadol. ACTA ACUST UNITED AC 2008. [DOI: 10.1080/10601330701885066] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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