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Smart Injectable Chitosan Hydrogels Loaded with 5-Fluorouracil for the Treatment of Breast Cancer. Pharmaceutics 2022; 14:pharmaceutics14030661. [PMID: 35336035 PMCID: PMC8950008 DOI: 10.3390/pharmaceutics14030661] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 02/05/2023] Open
Abstract
The treatment of breast cancer requires long chemotherapy management, which is accompanied by severe side effects. Localized delivery of anticancer drugs helps to increase the drug concentration at the site of action and overcome such a problem. In the present study, chitosan hydrogel was prepared for local delivery of 5-Fluorouracil. The in vitro release behavior was investigated and the anticancer activity was evaluated against MCF-7 cells using MTT assay. The in vivo studies were investigated via intra-tumoral injection of a 5-FU loaded hydrogel into breast cancer of female rats. The results indicated that the modified hydrogel has excellent physicochemical properties with a sustained in vitro release profile matching a zero-order kinetic for one month. In addition, the hydrogel showed superior inhibition of cell viability compared with the untreated control group. Moreover, the in vivo studies resulted in antitumor activity with minor side effects. The tumor volume and level of tumor markers in blood were inhibited significantly by applying the hydrogel compared with the untreated control group. In conclusion, the designed injectable hydrogels are potential drug delivery systems for the treatment of breast cancer with a controlled drug release profile, which could be suitable for decreasing the side effects of chemotherapy agents.
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Preparation and characterization of mucoadhesive gels containing pentoxifylline loaded nanoparticles for vaginal delivery of genital ulcer. IRANIAN POLYMER JOURNAL 2021. [DOI: 10.1007/s13726-021-00913-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Preparation and Evaluation of Physicochemical Properties of the Doxepin Mucoadhesive Gel. Jundishapur J Nat Pharm Prod 2020. [DOI: 10.5812/jjnpp.66864] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: Oral mucositis is a common debilitating complication of cancer chemotherapy and radiotherapy that can reduce the quality of patient’s lives. Hence, treating this condition plays an important role in increasing the patient’s tolerance. Objectives: Doxepin mucoadhesive gel is useful for treating oral mucosa inflammation caused by long-term effects of chemotherapy, which has low adverse effects. Methods: Doxepin gel’s formulation was prepared with various concentrations of poloxamer 407 and hydroxypropyl methylcellulose in deionized water. The prepared gels were evaluated for pH, appearance, viscosity, spreadability, stability, and drug release. Results: After providing gels containing doxepin, formulations 1, 2, 8, and 9 had low quality and, thus, were removed from the study. Based on qualitative evaluations, formulations 3 and 4 did not meet the criteria for mucoadhesive gel and were removed from the study. The best formulation contained 17% w/w poloxamer 407, 10% w/w hydroxypropyl methylcellulose, and 5% w/w doxepin. Conclusions: Suitable physicochemical properties of prepared doxepin mucoadhesive gel enable it to well cover inflamed and damaged oral mucosa. On the other hand, doxepin’s slow release from formulation (8 hours) can increase therapeutic effects and reduce side effects, which can heal and soothe inflammations of the oral mucosa and be useful in cancer patient’s treatment.
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Gelatin Promotes Cell Retention Within Decellularized Heart Extracellular Matrix Vasculature and Parenchyma. Cell Mol Bioeng 2020; 13:633-645. [PMID: 33281992 DOI: 10.1007/s12195-020-00634-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 06/23/2020] [Indexed: 12/11/2022] Open
Abstract
Introduction Recellularization of organ decellularized extracellular matrix (dECM) offers a potential solution for organ shortage in allograft transplantation. Cell retention rates have ranged from 10 to 54% in varying approaches for reseeding cells in whole organ dECM scaffolds. We aimed to improve recellularization by using soluble gelatin as a cell carrier to deliver endothelial cells to the coronary vasculature and cardiomyocytes to the parenchyma in a whole decellularized rat heart. Methods Rat aortic endothelial cells (RAECs) were perfused over decellularized porcine aorta in low (1%) and high (5%) concentrations of gelatin to assess attachment to a vascular dECM model. After establishing cell viability and proliferation in 1% gelatin, we used 1% gelatin as a carrier to deliver RAECs and neonatal rat cardiomyocytes (NRCMs) to decellularized adult rat hearts. Immediate cell retention in the matrix was quantified, and recellularized hearts were evaluated for visible contractions up to 35 days after recellularization. Results We demonstrated that gelatin increased RAEC attachment to decellularized porcine aorta; blocking integrin receptors reversed this effect. In the whole rat heart gelatin (1%) increased retention of both RAECs and NRCMs respectively, compared with the control group (no gelatin). Gelatin was associated with visible contractions of NRCMs within hearts (87% with gelatin vs. 13% control). Conclusions Gelatin was an effective cell carrier for increasing cell retention and contraction in dECM. The gelatin-cell-ECM interactions likely mediated by integrin.
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Hybrid nanofilms as topical anesthetics for pain-free procedures in dentistry. Sci Rep 2020; 10:11341. [PMID: 32647250 PMCID: PMC7347607 DOI: 10.1038/s41598-020-68247-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/22/2020] [Indexed: 02/07/2023] Open
Abstract
Topical anesthetics are widely applied in order to relieve the discomfort and anxiety caused by needle insertion and other painful superficial interventions at the oral cavity. So far, there are no commercially available effective topical anesthetic formulations for that purpose, and the most of developments are related to hydrophilic and low mucoadhesive forms. Therefore, we have prepared different hybrid nanofilms composed of biopolymer matrices (chitosan, pectin, and chitosan-pectin) blended with nanostructured lipid carriers (NLC) loading the eutectic mixture of 5% lidocaine-prilocaine (LDC-PLC), in order to fulfill this gap in the market. These dual systems were processed as hybrid nanofilms by the solvent/casting method, and its mucoadhesive, structural and mechanical properties were detailed. The most appropriate hybrid nanofilm combined the advantages of both pectin (PCT) and NLC components. The resultant material presented sustained LDC-PLC release profile for more than 8 h; permeation across porcine buccal mucosa almost twice higher than control and non-cytotoxicity against 3T3 and HACAT cell lines. Then, the in vivo efficacy of PCT/NLC formulation was compared to biopolymer film and commercial drug, exhibiting the longest-lasting anesthetic effect (> 7 h), assessed by tail flick test in mice. These pectin-based hybrid nanofilms open perspectives for clinical trials and applications beyond Dentistry.
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Sayiner O, Arisoy S, Comoglu T, Ozbay FG, Esendagli G. Development and in vitro evaluation of temozolomide-loaded PLGA nanoparticles in a thermoreversible hydrogel system for local administration in glioblastoma multiforme. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101627] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Ouda GI, Dahmash EZ, Alyami H, Iyire A. A Novel Technique to Improve Drug Loading Capacity of Fast/Extended Release Orally Dissolving Films with Potential for Paediatric and Geriatric Drug Delivery. AAPS PharmSciTech 2020; 21:126. [PMID: 32382992 DOI: 10.1208/s12249-020-01665-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 03/21/2020] [Indexed: 12/17/2022] Open
Abstract
Orally dissolving films (ODFs) have received much attention as potential oral drug delivery systems for paediatric and geriatric patients, particularly those suffering from dysphagia. With their unique properties and advantages, the technology offers improved patient compliance and wider acceptability, eliminates the fear of choking, enables ease of administration and offers dosing convenience, without the requirement of water. However, adequate drug loading remains a challenge. The aim of this study was to mechanistically design and evaluate fast and extended release ODF formulations with high drug loading capacity, displaying good physicochemical and mechanical properties, as a potential dosage form for paediatric and geriatric use employing a slightly soluble model drug-ibuprofen. Different polymers (0.6-10% HPMC, 0.6-1.5% guar gum), plasticisers (0.1-0.5% glycerine, 0.1% sorbitol) and processing conditions (40-60°C drying temperatures, 8-16 h drying times) were investigated to produce films using the solvent casting method. Molecular compatibility was assessed using TGA, XRD and FTIR whereas film topography was assessed using SEM. Maximum ibuprofen load in single films was 20.7 mg/film (54.4%) and released 100% drug content in 5 min, while triple layered ibuprofen-loaded films contained 62.2 mg/film and released 100% drug release in 1 h. The ODFs demonstrated good disintegration time using low volume artificial saliva media and high dosage from uniformity. This study provides a mechanistic insight to the design and evaluation of fast and extended release ODFs with high drug loading, suitable for administration to paediatric and geriatric patients.
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Simões A, Veiga F, Vitorino C. Developing Cream Formulations: Renewed Interest in an Old Problem. J Pharm Sci 2019; 108:3240-3251. [PMID: 31216450 DOI: 10.1016/j.xphs.2019.06.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 06/04/2019] [Indexed: 12/16/2022]
Abstract
This work aimed at establishing a framework to screen and understand the product variability deeming from factors that affect the quality features of cream formulations. As per Quality by Design - based approach, cream quality target profile and critical quality attributes were identified, and a risk assessment analysis was conducted to qualitatively detect the most critical variables for cream design and development. A Plackett-Burman design was used to screen out unimportant factors, avoiding collecting large amounts of data. Accordingly, 2 designs of experiments (DoE-1 and DoE-2) were performed, and the effects of independent variables on the cream formulations responses were estimated. At different factor combinations, significant variability was observed in droplet size, consistency, hardness, compressibility, and adhesiveness with values ranging from 2.6 ± 0.9 to 10 ± 6 μm, 7.93 ± 0.05 to 13.53 ± 0.14 mm, 27.6 ± 0.3 to 58.4 ± 1.1 g, 38 ± 6 to 447 ± 37 g.s, and 25.7 ± 2.1 to 286 ± 33 g.s, respectively. The statistical analysis allowed determining the most influent factors. This study revealed the potential of Quality by Design methodology in understanding product variability, recognizing the most critical independent variables for the final product quality. This systematic approach in the pharmaceutical field will yield more robust products and processes, provisioning time and cost effective developments.
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Affiliation(s)
- Ana Simões
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; LAQV. REQUIMTE, Group of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Francisco Veiga
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; LAQV. REQUIMTE, Group of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Carla Vitorino
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; Center for Neurosciences and Cell Biology (CNC), University of Coimbra, Rua Larga, Faculty of Medicine, Pólo I, 1st floor, 3004-504 Coimbra, Portugal; Chemistry Centre, Department of Chemistry, University of Coimbra, Coimbra, Portugal.
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Abstract
AIM A transmucosal niosome gel was developed to improve the pharmacokinetics of exogenous melatonin. MATERIALS & METHODS The melatonin niosomes (MN) gel was characterized and melatonin levels were determined in healthy volunteers. RESULTS Micron-sized MN in a gel, mean ex vivo residence time of more than 3 h with maximum adhesiveness at 25 and 37°C showed similar in vitro release but different in vitro permeation to melatonin gel. Oral transmucosal MN gels, at 2.5, 5 and 10 mg, topically applied in 14 healthy volunteers in a randomized double-blinded crossover design with 7-day washout, gave dose-proportional pharmacokinetics, with improved absorption and prolonged systemic circulation. CONCLUSION The transmucosal MN gel provides a topical option for melatonin administration with substantial prolonged systemic delivery.
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Ribeiro LNDM, Franz-Montan M, Breitkreitz MC, Rodrigues da Silva GH, de Castro SR, Guilherme VA, de Araújo DR, de Paula E. Nanohybrid hydrogels designed for transbuccal anesthesia. Int J Nanomedicine 2018; 13:6453-6463. [PMID: 30410331 PMCID: PMC6198882 DOI: 10.2147/ijn.s180080] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Local anesthesia in dentistry is by far the most terrifying procedure for patients, causing treatment interruption. None of the commercially available topical formulations is effective in eliminating the pain and phobia associated to the needle insertion and injection. MATERIALS AND METHODS In this work we prepared a nanostructured lipid-biopolymer hydrogel for the sustained delivery of lidocaine-prilocaine (LDC-PLC) for transbuccal pre-anesthesia. The lipid was composed of optimized nanostructured lipid carriers (NLC) loaded with 5% LDC-PLC (NLC/LDC-PLC). The biopolymer counterpart was selected among alginate, xanthan (XAN), and chitosan matrices. The XAN-NLC hydrogel presented the most uniform aspect and pseudoplastic rheological profile, as required for topical use; therefore, it was selected for subsequent analyses. Accelerated stability tests under critical conditions (40°C; 75% relative humidity) were conducted for 6 months, in terms of drug content (mg/g), weight loss (%), and pH. RESULTS In vitro LDC-PLC release profile through Franz diffusion cells revealed a bimodal kinetics with a burst effect followed by the sustained release of both anesthetics, for 24 hours. Structural analyses (fourier transform infrared spectroscopy, differential scanning calorimetry and scanning electron microscopy) gave details on the molecular organization of the hybrid hydrogel, confirming the synergic interaction between the components. Safety and efficacy were evaluated through in vitro cell viability (3T3, HaCat, and VERO cells) and in vivo antinociceptive (tail-flick, in mice) tests, respectively. In comparison to a control hydrogel and the eutectic mixture of 5% LDC-PLC cream (EMLA®), the XAN-NLC/LDC-PLC hybrid hydrogel doubled and quadrupled the anesthetic effect (8 hours), respectively. CONCLUSION Considering such exciting results, this multifaceted nanohybrid system is now ready to be further tested in clinical trials.
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Affiliation(s)
- Lígia Nunes de Morais Ribeiro
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (Unicamp), Campinas, São Paulo, Brazil,
| | - Michelle Franz-Montan
- Department of Physiological Sciences, Piracicaba Dental School, Unicamp, Piracicaba, São Paulo, Brazil
| | | | | | - Simone Ramos de Castro
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (Unicamp), Campinas, São Paulo, Brazil,
| | - Viviane Aparecida Guilherme
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (Unicamp), Campinas, São Paulo, Brazil,
| | | | - Eneida de Paula
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (Unicamp), Campinas, São Paulo, Brazil,
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Bansal M, Mittal N, Yadav SK, Khan G, Gupta P, Mishra B, Nath G. Periodontal thermoresponsive, mucoadhesive dual antimicrobial loaded in-situ gel for the treatment of periodontal disease: Preparation, in-vitro characterization and antimicrobial study. J Oral Biol Craniofac Res 2018; 8:126-133. [PMID: 29892535 PMCID: PMC5993462 DOI: 10.1016/j.jobcr.2017.12.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 12/08/2017] [Accepted: 12/09/2017] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND This study aimed to formulate and characterize in-situ gel containing levofloxacin and metronidazole to release drugs in controlled manner for treatment of periodontitis. MATERIAL AND METHODS Medicated in-situ gel with levofloxacin (10% w/v), metronidazole (25% w/v) and vehicle in-situ gel without drugs having poloxamer 407 (20% w/v) and chitosan (0.5%, 1%, 1.5%, 2.0% 2.5% w/v) were prepared and characterized for physicochemical, mechanical properties, stability and in-vitro drug release. Fourier transform infrared spectroscopy and differential scanning calorimetery studies were done. Optimized formulation was evaluated by scanning electron microscope (SEM) and in-vitro antimicrobial activity against 5 bacterial strains. RESULTS The results revealed that drugs and polymers were compatible to formulate. All formulations were light yellow, clear and syringeable except formulation having 2.5% w/v chitosan. pH was in the range of 6.20 to 6.74. 1.0% w/v and 1.5% w/v chitosan formulations showed gelation temperature 37 ± 0.32 °C and 34 ± 0.21 °C. Further, mucoadhesive strength indicated mucoadhesivity of gel. In-vitro release study of 1.5% w/v chitosan formulation showed initial burst where about 55-60% MZ and 60-70% LVF got released within 6-7 hrs followed by sustained release upto 48 hrs. SEM images of 1.5% w/v chitosan optimized medicated in-situ and vehicle in-situ gel appeared similar indicating homogeneous mixing of polymers with drugs. In-vitro antimicrobial study showed that medicated in-situ gel was more effective than vehicle. CONCLUSIONS In conclusion, optimized 1.5% w/v chitosan in-situ gel was thermoresponsive, mucoadhesive, syringeable, and released drugs in slow and controlled manner with effectiveness against broad range of microbes.
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Affiliation(s)
- Monika Bansal
- Faculty of Dental Sciences, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Neelam Mittal
- Faculty of Dental Sciences, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Sarita Kumari Yadav
- Department of Pharmaceutics, Indian institute of Technology, Banaras Hindu University, Varanasi, 221005, India
| | - Gayasuddin Khan
- Department of Pharmaceutics, Indian institute of Technology, Banaras Hindu University, Varanasi, 221005, India
| | - Pooja Gupta
- Department of Microbiology, Faculty of Medicine, Institute of Medical Sciences Banaras Hindu University, Varanasi, 221005, India
| | - Brahmeshwar Mishra
- Department of Pharmaceutics, Indian institute of Technology, Banaras Hindu University, Varanasi, 221005, India
| | - Gopal Nath
- Department of Microbiology, Faculty of Medicine, Institute of Medical Sciences Banaras Hindu University, Varanasi, 221005, India
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Chen X, Yan J, Yu S, Wang P. Formulation and In Vitro Release Kinetics of Mucoadhesive Blend Gels Containing Matrine for Buccal Administration. AAPS PharmSciTech 2018; 19:470-480. [PMID: 28828580 DOI: 10.1208/s12249-017-0853-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 07/28/2017] [Indexed: 11/30/2022] Open
Abstract
Enterovirus 71 (EV71) is a pathogenic factor of severe hand, foot, and mouth disease (HFMD). No vaccine or specific treatment is currently available for EV71 infection. Hence, we developed a buccal mucoadhesive gel containing matrine to protect against HFMD. Mucoadhesive gels were prepared by Carbopol 974P and were combined with Carbopol 971P, sodium carboxymethyl cellulose (CMC-Na), or hydroxypropylmethy cellulose (HPMC K100M). The formulations were characterized in terms of tensile testing and continuous flow techniques for mucoadhesion. The rheological studies and in vitro drug release characteristics were also investigated. The results showed that combinations of two polymers significantly improved mucoadhesion, especially Carbopol 974P blended with HPMC. Carbopol 974P to HPMC blend ratios of 1:1 and 2:1 induced better mucoadhesion in the tensile test and continuous flow method, respectively. The most sustained release was obtained at a Carbopol 974P to HPMC ratio of 2.5:1. A predominantly non-Fickian diffusion release mechanism was obtained. The gel containing 2.5% Carbopol 974P combined with 1% HPMC showed good mucoadhesion properties and sustained drug release.
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Formulation, functional evaluation and ex vivo performance of thermoresponsive soluble gels - A platform for therapeutic delivery to mucosal sinus tissue. Eur J Pharm Sci 2016; 96:499-507. [PMID: 27771516 DOI: 10.1016/j.ejps.2016.10.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/14/2016] [Accepted: 10/17/2016] [Indexed: 11/20/2022]
Abstract
Mucoadhesive in situ gelling systems (soluble gels) have received considerable attention recently as effective stimuli-transforming vectors for a range of drug delivery applications. Considering this fact, the present work involves systematic formulation development, optimization, functional evaluation and ex vivo performance of thermosensitive soluble gels containing dexamethasone 21-phosphate disodium salt (DXN) as the model therapeutic. A series of in situ gel-forming systems comprising the thermoreversible polymer poloxamer-407 (P407), along with hydroxypropyl methyl cellulose (HPMC) and chitosan were first formulated. The optimized soluble gels were evaluated for their potential to promote greater retention at the mucosal surface, for improved therapeutic efficacy, compared to existing solution/suspension-based steroid formulations used clinically. Optimized soluble gels demonstrated a desirable gelation temperature with Newtonian fluid behaviour observed under storage conditions (4-8°C), and pseudoplastic fluid behaviour recorded at nasal cavity/sinus temperature (≈34°C). The in vitro characterization of formulations including rheological evaluation, textural analysis and mucoadhesion studies of the gel form were investigated. Considerable improvement in mechanical properties and mucoadhesion was observed with incorporation of HPMC and chitosan into the gelling systems. The lead poloxamer-based soluble gels, PGHC4 and PGHC7, which were carried through to ex vivo permeation studies displayed extended drug release profiles in conditions mimicking the human nasal cavity, which indicates their suitability for treating a range of conditions affecting the nasal cavity/sinuses.
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Rençber S, Karavana SY, Şenyiğit ZA, Eraç B, Limoncu MH, Baloğlu E. Mucoadhesive in situ gel formulation for vaginal delivery of clotrimazole: formulation, preparation, and in vitro/in vivo evaluation. Pharm Dev Technol 2016; 22:551-561. [PMID: 27055376 DOI: 10.3109/10837450.2016.1163385] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The purpose of this study was to develop a suitable mucoadhesive in situ gel formulation of clotrimazole (CLO) for the treatment of vaginal candidiasis. For this aim, the mixture of poloxamer (PLX) 407 and 188 were used to prepare in situ gels. Hydroxypropyl methylcellulose (HPMC) K100M or E50 was added to in situ gels in 0.5% ratio to improve the mucoadhesive and mechanical properties of formulations and to prolong the residence time in vaginal cavity. After the preparation of mucoadhesive in situ gels; gelation temperature/time, viscosity, mechanical, mucoadhesive, syringeability, spreadibility and rheological properties, in vitro release behavior, and anticandidal activities were determined. Moreover vaginal retention of mucoadhesive in situ gels was investigated with in vivo distribution studies in rats. Based on the obtained results, it was found that gels prepared with 20% PLX 407, 10% PLX 188 and 0.5% HPMC K100M/E50 might be suitable for vaginal administration of CLO. In addition, the results of in vivo distribution studies showed that gel formulations remained on the vaginal mucosa even 24 h after application. In conclusion, the mucoadhesive in situ gels of CLO would be alternative candidate for treatment of vaginal candidiasis since it has suitable gel properties with good vaginal retention.
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Affiliation(s)
- Seda Rençber
- a Department of Pharmaceutical Technology , Ege University , Bornova , Izmir , Turkey
| | - Sinem Yaprak Karavana
- a Department of Pharmaceutical Technology , Ege University , Bornova , Izmir , Turkey
| | - Zeynep Ay Şenyiğit
- a Department of Pharmaceutical Technology , Ege University , Bornova , Izmir , Turkey
| | - Bayri Eraç
- b Department of Pharmaceutical Microbiology, Faculty of Pharmacy , Ege University , Bornova , Izmir , Turkey
| | - Mine Hoşgör Limoncu
- b Department of Pharmaceutical Microbiology, Faculty of Pharmacy , Ege University , Bornova , Izmir , Turkey
| | - Esra Baloğlu
- a Department of Pharmaceutical Technology , Ege University , Bornova , Izmir , Turkey
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Singh M, Kanoujia J, Singh P, Parashar P, Arya M, Tripathi CB, Sinha VR, Saraf SA. Development of an α-linolenic acid containing a soft nanocarrier for oral delivery-part II: buccoadhesive gel. RSC Adv 2016. [DOI: 10.1039/c6ra20896g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Development and evaluation of a novel buccoadhesive gel containing microemulsion to enhance the permeation and bioavailability of simvastatin.
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Affiliation(s)
- Mahendra Singh
- Department of Pharmaceutical Sciences
- Babasaheb Bhimrao Ambedkar University (A Central University) Vidya Vihar
- Lucknow-226025
- India
| | - Jovita Kanoujia
- Department of Pharmaceutical Sciences
- Babasaheb Bhimrao Ambedkar University (A Central University) Vidya Vihar
- Lucknow-226025
- India
| | - Pooja Singh
- Department of Pharmaceutical Sciences
- Babasaheb Bhimrao Ambedkar University (A Central University) Vidya Vihar
- Lucknow-226025
- India
| | - Poonam Parashar
- Department of Pharmaceutical Sciences
- Babasaheb Bhimrao Ambedkar University (A Central University) Vidya Vihar
- Lucknow-226025
- India
| | - Malti Arya
- Department of Pharmaceutical Sciences
- Babasaheb Bhimrao Ambedkar University (A Central University) Vidya Vihar
- Lucknow-226025
- India
| | - Chandra Bhushan Tripathi
- Department of Pharmaceutical Sciences
- Babasaheb Bhimrao Ambedkar University (A Central University) Vidya Vihar
- Lucknow-226025
- India
| | - Vivek R. Sinha
- University Institute of Pharmaceutical Sciences
- Panjab University
- Chandigarh-160014 (UT)
- India
| | - Shubhini A. Saraf
- Department of Pharmaceutical Sciences
- Babasaheb Bhimrao Ambedkar University (A Central University) Vidya Vihar
- Lucknow-226025
- India
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Using chitosan gels as a toluidine blue O delivery system for photodynamic therapy of buccal cancer: In vitro and in vivo studies. Photodiagnosis Photodyn Ther 2015; 12:98-107. [DOI: 10.1016/j.pdpdt.2014.11.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Revised: 11/11/2014] [Accepted: 11/12/2014] [Indexed: 11/23/2022]
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Zeng N, Dumortier G, Maury M, Mignet N, Boudy V. Influence of additives on a thermosensitive hydrogel for buccal delivery of salbutamol: Relation between micellization, gelation, mechanic and release properties. Int J Pharm 2014; 467:70-83. [DOI: 10.1016/j.ijpharm.2014.03.055] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 03/28/2014] [Accepted: 03/28/2014] [Indexed: 10/25/2022]
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18
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Optimization of Biopolymer Based Transdermal Films of Metoclopramide as an Alternative Delivery Approach. Polymers (Basel) 2014. [DOI: 10.3390/polym6051350] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Chung TW, Lin PY, Wang SS, Chen YF. Adenosine diphosphate-decorated chitosan nanoparticles shorten blood clotting times, influencing the structures and varying the mechanical properties of the clots. Int J Nanomedicine 2014; 9:1655-64. [PMID: 24729701 PMCID: PMC3976209 DOI: 10.2147/ijn.s57855] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Chitosan nanoparticles (NPs) decorated with adenosine diphosphate (ADP) (ANPs) or fibrinogen (FNPs) were used to fabricate hemostatic NPs that can shorten blood clotting time and prevent severe local hemorrhage. The structure and mechanical properties of the blood clot induced with ANP (clot/ANP) or FNP (clot/FNP) were also investigated. The NPs, ANPs, and FNPs, which had particle sizes of 245.1±14.0, 251.0±9.8, and 326.5±14.5 nm and zeta potentials of 24.1±0.5, 20.6±1.9, and 15.3±1.5 mV (n=4), respectively, were fabricated by ionic gelation and then decorated with ADP and fibrinogen. The zeta potentials and Fourier transform infrared (FTIR) spectroscopy of the NPs confirmed that their surfaces were successfully coated with ADP and fibrinogen. The scanning electron microscope (SEM) micrographs of the structure of the clot induced with “undecorated” chitosan NPs (clot/NP), clot/ANP, and clot/FNP (at 0.05 wt%) were different, after citrated bloods had been recalcified by a calcium chloride solution containing NPs, ANPs, or FNPs. This indicated that many NPs adhered on the membrane surfaces of red blood cells, that ANPs induced many platelet aggregates, and that FNPs were incorporated into the fibrin network in the clots. Measurements of the blood clotting times (Tc) of blood clot/NPs, clot/ANPs, and clot/FNPs, based on 90% of ultimate frequency shifts measured on a quartz crystal microbalance (QCM), were significantly (P<0.05) (n=4) shorter than that of a clot induced by a phosphate-buffered solution (PBS) (clot/PBS) (63.6%±3.1%, 48.3%±6.2%, and 63.2%±4.7%, respectively). The ΔF2 values in the spectra of frequency shifts associated with the propagation of fibrin networks in the clot/ANPs and clot/FNPs were significantly lower than those of clot/PBS. Interestingly, texture profile analysis of the compressional properties showed significantly lower hardness and compressibility in clot/NPs and clot/ANPs (P<0.05 or better) (n=4) compared with clot/PBS and clot/FNPs. Accordingly, among the hemostatic NPs, ANP substantially reduced blood clotting times, ΔF2 values, and compression flow properties of the clot. Hence, ANPs have potential applications for preventing severe local hemorrhage.
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Affiliation(s)
- Tze-Wen Chung
- Department of Biomedical Engineering, National Yang-Ming University, Taipei, Taiwan, Republic of China ; Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Yunlin, Taiwan, Republic of China
| | - Pei-Yi Lin
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan, Republic of China
| | - Shoei-Shen Wang
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan, Republic of China
| | - Yen-Fung Chen
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Yunlin, Taiwan, Republic of China
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Illangakoon UE, Nazir T, Williams GR, Chatterton NP. Mebeverine‐Loaded Electrospun Nanofibers: Physicochemical Characterization and Dissolution Studies. J Pharm Sci 2014; 103:283-92. [DOI: 10.1002/jps.23759] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 09/26/2013] [Accepted: 10/01/2013] [Indexed: 01/19/2023]
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Tuğcu-Demiröz F, Acartürk F, Erdoğan D. Development of long-acting bioadhesive vaginal gels of oxybutynin: Formulation, in vitro and in vivo evaluations. Int J Pharm 2013; 457:25-39. [DOI: 10.1016/j.ijpharm.2013.09.003] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 08/28/2013] [Accepted: 09/04/2013] [Indexed: 10/26/2022]
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ZHANG LILI, YU SU, DUAN ZHIJUN, WANG QIUMING, TIAN GE, TIAN YAN, ZHAO WEI, WANG HUI, ZHANG CUILING, GUO SHIBIN, LIU QIGUI, HE GAOHONG, BIAN TENGFEI, CHANG JIUYANG, JIN XUE, CUI DONGSHENG. Treatment of liver cancer in mice by the intratumoral injection of an octreotide-based temperature-sensitive gel. Int J Mol Med 2013; 33:117-27. [DOI: 10.3892/ijmm.2013.1542] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Accepted: 08/21/2013] [Indexed: 11/06/2022] Open
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Can AS, Erdal MS, Güngör S, Özsoy Y. Optimization and characterization of chitosan films for transdermal delivery of ondansetron. Molecules 2013; 18:5455-71. [PMID: 23666010 PMCID: PMC6270495 DOI: 10.3390/molecules18055455] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 05/02/2013] [Accepted: 05/06/2013] [Indexed: 11/17/2022] Open
Abstract
The aim of this study was to develop novel transdermal films of ondansetron HCl with high molecular weight chitosan as matrix polymer and 2-(2-ethoxy-ethoxy) ethanol (Transcutol®) as plasticizer. In this context, firstly the physicochemical properties of gels used to formulate transdermal films were characterized and, physicochemical properties and bioadhesiveness of the transdermal films prepared with chitosan gels were assessed. The impact of three different types of terpenes, namely limonene, nerolidol and eucalyptol on in vitro skin permeation of ondansetron from transdermal films were also examined. ATR-FTIR measurements were performed to investigate the effects of the chitosan film formulations on in vitro conformational order of stratum corneum intercellular lipids after 24 h permeation study. The results showed that the chitosan gels consisting of Transcutol® as plasticizer and terpenes as penetration enhancer may be used to prepare transdermal films of ondansetron due to the good mechanical properties and bioadhesiveness of the transdermal films. Eucalyptol (1%) showed higher permeation enhancer effect than the other terpenes and control. ATR-FTIR data confirmed that finding in which eucalyptol induced a blue shift in the both CH₂ asymmetric and symmetric absorbance peak positions indicating increased lipid fluidity of stratum corneum.
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Affiliation(s)
| | | | | | - Yıldız Özsoy
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, Istanbul 34116, Turkey; E-Mails: (A.S.C.); (M.S.E.); (S.G.)
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