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Pérez-Flores JG, García-Curiel L, Pérez-Escalante E, Contreras-López E, Olloqui EJ. Arabinoxylans matrixes as a potential material for drug delivery systems development - A bibliometric analysis and literature review. Heliyon 2024; 10:e25445. [PMID: 38352745 PMCID: PMC10862686 DOI: 10.1016/j.heliyon.2024.e25445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/16/2024] Open
Abstract
Arabinoxylans (AX) have become a focal point in the pharmaceutical sector owing to their physicochemical, biological, and functional properties. The purpose of this paper was to present a summary of the utilization of AX as drug release matrices through a bibliometric analysis (BA) and a literature review to spotlight the AX functional characteristics and their technological applications to promote this line of research. The BA was carried out using data from a Web of Science database research, specifically emphasizing the analysis of authors' keywords. This approach was chosen due to its significance in comprehensively understanding a particular research field and its relevance for in-depth knowledge of a research field. The BA outcomes revealed limited information concerning the AX applications in both release matrices and as excipients in the formulation and development of drug delivery systems (DDS), so there is a need for additional scientific and technological research in these areas to address the existing information gaps. However, the literature review shows that the native and modified AX from different delivery release systems, such as macrogels (including films, tablets, and hard gelatin capsules) and multi-particulate systems (including micro and nanogels), present an excellent potential as release matrices of biomolecules and drugs, such as doxorubicin, diclofenac sodium, caffeine, gentamicin, tizanidine hydrochloride, and insulin. In conclusion, AX have a wide potential for application in the pharmaceutical industry, so this work is expected to be a reference point for future research by scientists, technologists, and entrepreneurs who cope with the subject.
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Affiliation(s)
- Jesús Guadalupe Pérez-Flores
- Área Académica de Enfermería, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Circuito Ex Hacienda La Concepción s/n, Carretera Pachuca-Actopan, 42060, San Agustín Tlaxiaca, Hidalgo, Mexico
- Área Académica de Química, Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo km 4.5, 42184, Mineral de la Reforma, Hidalgo, Mexico
| | - Laura García-Curiel
- Área Académica de Enfermería, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Circuito Ex Hacienda La Concepción s/n, Carretera Pachuca-Actopan, 42060, San Agustín Tlaxiaca, Hidalgo, Mexico
| | - Emmanuel Pérez-Escalante
- Área Académica de Química, Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo km 4.5, 42184, Mineral de la Reforma, Hidalgo, Mexico
| | - Elizabeth Contreras-López
- Área Académica de Química, Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo km 4.5, 42184, Mineral de la Reforma, Hidalgo, Mexico
| | - Enrique J. Olloqui
- CONAHCyT, Colegio de Postgraduados, Campus Puebla, Boulevard Forjadores, 72760, Puebla, Puebla, Mexico
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Teli S, Deshmukh K, Khan T, Suvarna V. Recent Advances in Biomedical Applications of Mannans and Xylans. Curr Drug Targets 2024; 25:261-277. [PMID: 38375843 DOI: 10.2174/0113894501285058240203094846] [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: 11/10/2023] [Revised: 01/15/2024] [Accepted: 01/23/2024] [Indexed: 02/21/2024]
Abstract
Plant-based phytochemicals, including flavonoids, alkaloids, tannins, saponins, and other metabolites, have attracted considerable attention due to their central role in synthesizing nanomaterials with various biomedical applications. Hemicelluloses are the second most abundant among naturally occurring heteropolymers, accounting for one-third of all plant constituents. In particular, xylans, mannans, and arabinoxylans are structured polysaccharides derived from hemicellulose. Mannans and xylans are characterized by their linear configuration of β-1,4-linked mannose and xylose units, respectively. At the same time, arabinoxylan is a copolymer of arabinose and xylose found predominantly in secondary cell walls of seeds, dicotyledons, grasses, and cereal tissues. Their widespread use in tissue engineering, drug delivery, and gene delivery is based on their properties, such as cell adhesiveness, cost-effectiveness, high biocompatibility, biodegradability, and low immunogenicity. Moreover, it can be easily functionalized, which expands their potential applications and provides them with structural diversity. This review comprehensively addresses recent advances in the field of biomedical applications. It explores the potential prospects for exploiting the capabilities of mannans and xylans in drug delivery, gene delivery, and tissue engineering.
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Affiliation(s)
- Shriya Teli
- Department of Pharmaceutical Chemistry & Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai 400056, Maharashtra, India
| | - Kajal Deshmukh
- Department of Pharmaceutical Chemistry & Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai 400056, Maharashtra, India
| | - Tabassum Khan
- Department of Pharmaceutical Chemistry & Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai 400056, Maharashtra, India
| | - Vasanti Suvarna
- Department of Pharmaceutical Analysis & Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai 400056, Maharashtra, India
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Safhi AY, Siddique W, Zaman M, Sarfraz RM, Shafeeq Ur Rahman M, Mahmood A, Salawi A, Sabei FY, Alsalhi A, Zoghebi K. Statistically Optimized Polymeric Buccal Films of Eletriptan Hydrobromide and Itopride Hydrochloride: An In Vivo Pharmacokinetic Study. Pharmaceuticals (Basel) 2023; 16:1551. [PMID: 38004417 PMCID: PMC10674159 DOI: 10.3390/ph16111551] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023] Open
Abstract
A migraine is a condition of severe headaches, causing a disturbance in the daily life of the patient. The current studies were designed to develop immediate-release polymeric buccal films of Eletriptan Hydrobromide (EHBR) and Itopride Hydrochloride (ITHC) to improve their bioavailability and, hence, improve compliance with the patients of migraines and its associated symptoms. The prepared films were evaluated for various in vitro parameters, including surface morphology, mechanical strength, disintegration test (DT), total dissolving time (TDT), drug release and drug permeation, etc., and in vivo pharmacokinetic parameters, such as area under curve (AUC), mean residence time (MRT), half-life (t1/2), time to reach maximum concentration (Tmax), and time to reach maximum concentration (Cmax). The outcomes have indicated the successful preparation of the films, as SEM has confirmed the smooth surface and uniform distribution of drugs throughout the polymer matrix. The films were found to be mechanically stable as indicated by folding endurance studies. Furthermore, the optimized formulations showed a DT of 13 ± 1 s and TDT of 42.6 ± 0.75 s, indicating prompt disintegration as well as the dissolution of the films. Albino rabbits were used for in vivo pharmacokinetics, and the outcomes were evident of improved pharmacokinetics. The drug was found to rapidly permeate across the buccal mucosa, leading to increased bioavailability of the drug: Cmax of 130 and 119 ng/mL of ITHC and EHBR, respectively, as compared to 96 (ITHC) and 90 ng/mL (EHBR) of oral solution. The conclusion can be drawn that possible reasons for the enhanced bioavailability could be the increased surface area in the form of buccal films, its rapid disintegration, and faster dissolution, which led toward the rapid absorption of the drug into the blood stream.
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Affiliation(s)
- Awaji Y. Safhi
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia; (A.Y.S.); (F.Y.S.); (A.A.)
| | - Waqar Siddique
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Lahore Campus, Lahore 54000, Pakistan
| | - Muhammad Zaman
- Faculty of Pharmaceutical Sciences, University of Central Punjab, Lahore 54590, Pakistan
| | | | | | - Asif Mahmood
- Department of Pharmacy, University of Chakwal, Chakwal 48800, Pakistan;
| | - Ahmad Salawi
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia; (A.Y.S.); (F.Y.S.); (A.A.)
| | - Fahad Y. Sabei
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia; (A.Y.S.); (F.Y.S.); (A.A.)
| | - Abdullah Alsalhi
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia; (A.Y.S.); (F.Y.S.); (A.A.)
| | - Khalid Zoghebi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia;
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Dubashynskaya NV, Skorik YA. Patches as Polymeric Systems for Improved Delivery of Topical Corticosteroids: Advances and Future Perspectives. Int J Mol Sci 2022; 23:12980. [PMID: 36361769 PMCID: PMC9657685 DOI: 10.3390/ijms232112980] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/20/2022] [Accepted: 10/25/2022] [Indexed: 12/25/2023] Open
Abstract
Mucoadhesive polymer patches are a promising alternative for prolonged and controlled delivery of topical corticosteroids (CS) to improve their biopharmaceutical properties (mainly increasing local bioavailability and reducing systemic toxicity). The main biopharmaceutical advantages of patches compared to traditional oral dosage forms are their excellent bioadhesive properties and their increased drug residence time, modified and unidirectional drug release, improved local bioavailability and safety profile, additional pain receptor protection, and patient friendliness. This review describes the main approaches that can be used for the pharmaceutical R&D of oromucosal patches with improved physicochemical, mechanical, and pharmacological properties. The review mainly focuses on ways to increase the bioadhesion of oromucosal patches and to modify drug release, as well as ways to improve local bioavailability and safety by developing unidirectional -release poly-layer patches. Various techniques for obtaining patches and their influence on the structure and properties of the resulting dosage forms are also presented.
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Affiliation(s)
| | - Yury A. Skorik
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr. V.O. 31, 199004 St. Petersburg, Russia
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Siddique W, Zaman M, Sarfraz RM, Butt MH, Rehman AU, Fassih N, Albadrani GM, Bayram R, Alfaifi MY, Abdel-Daim MM. The Development of Eletriptan Hydrobromide Immediate Release Buccal Films Using Central Composite Rotatable Design: An In Vivo and In Vitro Approach. Polymers (Basel) 2022; 14:polym14193981. [PMID: 36235932 PMCID: PMC9572369 DOI: 10.3390/polym14193981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 09/13/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
The objective is to develop immediate release buccal films of Eletriptan Hydrobromide (EHBR) using hydroxypropyl methylcellulose (HPMC) E5. The buccal films have the ability to disintegrate rapidly and provide both systemic and local effects. The solvent casting method was employed to prepare the films and the central composite rotatable design (CCRD) model was used for film optimization. All the formulated films were characterized for physicochemical evaluation (Fourier transform infrared spectroscopy (FTIR), X-ray Diffraction (XRD), differential scanning calorimetry (DSC), and Scanning electron microscopy (SEM), in in-vitro, ex-vivo, and in-vivo drug release. The fabricated films were transparent, colorless, and evenly distributed. The FTIR spectra showed no chemical interaction between the drug and excipients. In in-vitro analysis, the film has the highest% drug release (102.61 ± 1.13), while a maximum of 92.87 ± 0.87% drug was diffused across the cellulose membrane having a pore size of 0.45 µm. In the ex-vivo study, drug diffusion across the goat mucosa was performed and 80.9% of the drug was released in 30 min. In-vivo results depict a mean half-life (t½) of 4.54 ± 0.18 h and a Cmax of 128 ± 0.87 (ng/mL); Tmax was achieved in 1 h. Furthermore, instability and histopathological studies buccal films were proven to be safe and act as an effective dosage form. In a nutshell, optimized and safe instant release EHBR buccal films were prepared that have the tendency to provide effect effectively.
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Affiliation(s)
- Waqar Siddique
- College of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan
- Department of Pharmacy, University of South Asia, Lahore 54000, Pakistan
| | - Muhammad Zaman
- Faculty of Pharmacy, University of Central Punjab, Lahore 54000, Pakistan
- Correspondence: (M.Z.); (R.M.S.)
| | - Rai Muhammad Sarfraz
- College of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan
- Correspondence: (M.Z.); (R.M.S.)
| | - Muhammad Hammad Butt
- Department of Medicinal Chemistry, Faculty of Pharmacy, Uppsala University, 75123 Uppsala, Sweden
| | - Atta Ur Rehman
- Department of Pharmacy, Forman Christian College, Lahore 54000, Pakistan
| | - Noman Fassih
- Department of Medical Cell Biology, Faculty of Medicine, Uppsala University, 75123 Uppsala, Sweden
| | - Ghadeer M. Albadrani
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Roula Bayram
- Pharmacy Program, Department of Pharmaceutical Sciences, Batterjee Medical College, Jeddah 21442, Saudi Arabia
| | - Mohammad Y. Alfaifi
- Biology Department, Faculty of Science, King Khalid University, Abha 9004, Saudi Arabia
| | - Mohamed M. Abdel-Daim
- Pharmacy Program, Department of Pharmaceutical Sciences, Batterjee Medical College, Jeddah 21442, Saudi Arabia
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
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Pichayakorn W, Monton C, Sampaopan Y, Panrat K, Suksaeree J. Fabrication and Characterization of Buccal Film Loaded Self-emulsifying Drug Delivery System containing Lysiphyllum strychnifolium Stem Extracts. AAPS PharmSciTech 2022; 23:194. [PMID: 35821541 DOI: 10.1208/s12249-022-02341-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 06/22/2022] [Indexed: 01/23/2023] Open
Abstract
Lysiphyllum strychnifolium has long been used as a popular herbal medicinal plant for treating fever and alcohol intoxication. This study aimed to prepare buccal film for L. strychnifolium stem extracts. These extracts were less soluble in water and were therefore loaded in self-emulsifying systems before being mixed into the film. Astilbin was selected as a chemical marker in L. strychnifolium stem extracts. Firstly, the L. strychnifolium stem extracts were entrapped in the self-emulsifying systems which were designed and optimized based on 32 factorial design. The optimal formulation was 0.60 g of surfactant-co-surfactant mixture (Tween® 80 and polyethylene glycol 400 in the ratio of 7.5:1) and 0.40 g of caprylic/capric triglyceride. Secondly, the optimal self-emulsifying system was loaded in the polymeric film which consisted of polyvinyl alcohol blended with poloxamer 407 using glycerin as a plasticizer. The properties of the prepared buccal film were unchanged, and the film showed an amorphous state, indicating all ingredients might be completely dissolved in the film. The buccal film could be placed in direct contact with the mouth without oral mucosal irritation, and showed a smooth and homogeneous surface with a rough and compact cross-sectional morphology. Astilbin content in the buccal film was 61.39 ± 11.45 µg/cm2. Astilbin was released from the buccal film while the permeation rate was low. The release mechanism was both swelling and diffusion, and followed anomalous or non-Fickian transfer. The permeability coefficient of the cumulative amount of astilbin permeated from buccal film was 1.0192 ± 0.1395 ×10-3 cm/h. Thus, the buccal film can be prepared by using a self-emulsifying system for herbal applications and shows potential as a safe and convenient form of oral drug administration.
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Affiliation(s)
- Wiwat Pichayakorn
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkhla, 90112, Thailand
| | - Chaowalit Monton
- Drug and Herbal Product Research and Development Center, College of Pharmacy, Rangsit University, Muang, Pathum Thani, 12000, Thailand
| | - Yupaporn Sampaopan
- Department of Pharmaceutical Chemistry, College of Pharmacy, Rangsit University, Muang, Pathum Thani, 12000, Thailand.,College of Oriental Medicine, Rangsit University, Muang, Pathum Thani, 12000, Thailand
| | - Kamon Panrat
- Pharmaceutical Laboratory Service Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkhla, 90112, Thailand
| | - Jirapornchai Suksaeree
- Department of Pharmaceutical Chemistry, College of Pharmacy, Rangsit University, Muang, Pathum Thani, 12000, Thailand.
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Salawi A. An Insight into Preparatory Methods and Characterization of Orodispersible Film-A Review. Pharmaceuticals (Basel) 2022; 15:ph15070844. [PMID: 35890143 PMCID: PMC9323338 DOI: 10.3390/ph15070844] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/02/2022] [Accepted: 07/07/2022] [Indexed: 11/30/2022] Open
Abstract
Over the past few decades, researchers and companies have been trying to develop novel drug delivery systems to ensure safety, efficacy, compliance, and patient acceptability. Nowadays drug discovery and development are expensive, complex, and time-consuming processes, but trends are moving toward novel drug delivery systems. This delivery system helps to achieve drug response by local and systemic action through different routes. This novel approach of preparing orodispersible films (ODFs) provides benefits to paediatric, geriatric, and bedridden patients. This review paper aims to provide details on the preparation, characterization, and evaluation of ODFs; it also aims to focus on the positive and negative factors that affect film formulation and give an insight into potential drug candidates and polymers for use in ODFs. ODFs are effective, safe, and have good bioavailability as compared to fast-disintegrating tablets. The novel approach has various advantages because it provides instant effects in emergency situations and in schizophrenic and dysphasic patients without the need for taking water, the films disintegrating within a few seconds in the oral cavity. The solvent casting method is the most frequently used technique to develop ODFs, using film-forming polymers, which have a fast disintegration time, improved drug dissolution, and better drug contents.
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Affiliation(s)
- Ahmad Salawi
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia
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Mao Y, Xu Z, He Z, Wang J, Zhu Z. Wet-adhesive materials of oral and maxillofacial region: From design to application. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.04.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Improved Bioavailability of Ebastine through Development of Transfersomal Oral Films. Pharmaceutics 2021; 13:pharmaceutics13081315. [PMID: 34452276 PMCID: PMC8401636 DOI: 10.3390/pharmaceutics13081315] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/05/2021] [Accepted: 08/07/2021] [Indexed: 12/18/2022] Open
Abstract
The main objective of this research work was the development and evaluation of transfersomes integrated oral films for the bioavailability enhancement of Ebastine (EBT) to treat allergic rhinitis. The flexible transfersomes, consisting of drug (EBT), lipid (Phosphatidylcholine) and edge activator (EA) Polyoxyethylene sorbitan monooleate or Sorbitan monolaurate, were prepared with the conventional thin film hydration method. The developed transfersomes were further integrated into oral films using the solvent casting method. Transfersomes were evaluated for their size distribution, surface charge, entrapment efficiency (EE%) and relative deformability, whereas the formulated oral films were characterized for weight, thickness, pH, folding endurance, tensile strength, % of elongation, degree of crystallinity, water content, content uniformity, in vitro drug release and ex vivo permeation, as well as in vivo pharmacokinetic and pharmacodynamics profile. The mean hydrodynamic diameter of transfersomes was detected to be 75.87 ± 0.55 nm with an average PDI and zeta potential of 0.089 ± 0.01 and 33.5 ± 0.39 mV, respectively. The highest deformability of transfersomes of 18.52 mg/s was observed in the VS-3 formulation. The average entrapment efficiency of the transfersomes was about 95.15 ± 1.4%. Transfersomal oral films were found smooth with an average weight, thickness and tensile strength of 174.72 ± 2.3 mg, 0.313 ± 0.03 mm and 36.4 ± 1.1 MPa, respectively. The folding endurance, pH and elongation were found 132 ± 1, 6.8 ± 0.2 and 10.03 ± 0.4%, respectively. The ex vivo permeability of EBT from formulation ETF-5 was found to be approximately 2.86 folds higher than the pure drug and 1.81 folds higher than plain film (i.e., without loaded transfersomes). The relative oral bioavailability of ETF-5 was 2.95- and 1.7-fold higher than that of EBT-suspension and plain film, respectively. In addition, ETF-5 suppressed the wheal and flare completely within 24 h. Based on the physicochemical considerations, as well as in vitro and in vivo characterizations, it is concluded that the highly flexible transfersomal oral films (TOFs) effectively improved the bioavailability and antihistamine activity of EBT.
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Zaman M, Saeed S, Imtiaz Bajwa R, Shafeeq Ur Rahman M, Rahman SU, Jamshaid M, Rasool MF, Majeed A, Imran I, Alqahtani F, Alshehri S, AlAsmari AF, Ali N, Alasmari M. Synthesis and Evaluation of Thiol-Conjugated Poloxamer and Its Pharmaceutical Applications. Pharmaceutics 2021; 13:693. [PMID: 34064792 PMCID: PMC8151909 DOI: 10.3390/pharmaceutics13050693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/06/2021] [Accepted: 05/06/2021] [Indexed: 12/05/2022] Open
Abstract
The current study was designed to convert the poloxamer (PLX) into thiolated poloxamer (TPLX), followed by its physicochemical, biocompatibilities studies, and applications as a pharmaceutical excipient in the development of tacrolimus (TCM)-containing compressed tablets. Thiolation was accomplished by using thiourea as a thiol donor and hydrochloric acid (HCl) as a catalyst in the reaction. Both PLX and TPLX were evaluated for surface morphology based on SEM, the crystalline or amorphous nature of the particles, thiol contents, micromeritics, FTIR, and biocompatibility studies in albino rats. Furthermore, the polymers were used in the development of compressed tablets. Later, they were also characterized for thickness, diameter, hardness, weight variation, swelling index, disintegration time, mucoadhesion, and in vitro drug release. The outcomes of the study showed that the thiolation process was accomplished successfully, which was confirmed by FTIR, where a characteristic peak was noticed at 2695.9968 cm-1 in the FTIR scan of TPLX. Furthermore, the considerable concentration of the thiol constituents (20.625 µg/g of the polymer), which was present on the polymeric backbone, also strengthened the claim of successful thiolation. A mucoadhesion test illustrated the comparatively better mucoadhesion strength of TPLX compared to PLX. The in vitro drug release study exhibited that the TPLX-based formulation showed a more rapid (p < 0.05) release of the drug in 1 h compared to the PLX-based formulation. The in vivo toxicity studies confirmed that both PLX and TPLX were safe when they were administered to the albino rats. Conclusively, the thiolation of PLX made not only the polymer more mucoadhesive but also capable of improving the dissolution profile of TCM.
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Affiliation(s)
- Muhammad Zaman
- Faculty of Pharmacy, University of Central Punjab, Lahore 54000, Pakistan; (M.S.U.R.); (M.J.)
| | - Sadaf Saeed
- Department of Pharmaceutics, Faculty of Pharmacy, The University of Lahore, Lahore 54000, Pakistan; (S.S.); (R.I.B.)
| | - Rabia Imtiaz Bajwa
- Department of Pharmaceutics, Faculty of Pharmacy, The University of Lahore, Lahore 54000, Pakistan; (S.S.); (R.I.B.)
| | | | - Saeed Ur Rahman
- Oral Biology, Institute of Basic Medical Sciences, Khyber Medical University, Peshawar 59000, Pakistan;
| | - Muhammad Jamshaid
- Faculty of Pharmacy, University of Central Punjab, Lahore 54000, Pakistan; (M.S.U.R.); (M.J.)
| | - Muhammad F. Rasool
- Department of Pharmacy Practice, Faculty of Pharmacy, Bahauddin Zakariya University, Multan 60800, Pakistan; (M.F.R.); (A.M.)
| | - Abdul Majeed
- Department of Pharmacy Practice, Faculty of Pharmacy, Bahauddin Zakariya University, Multan 60800, Pakistan; (M.F.R.); (A.M.)
| | - Imran Imran
- Department of Pharmacology, Faculty of Pharmacy, Bahauddin Zakariya University, Multan 60800, Pakistan;
| | - Faleh Alqahtani
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (A.F.A.); (N.A.); (M.A.)
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Abdullah F. AlAsmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (A.F.A.); (N.A.); (M.A.)
| | - Nemat Ali
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (A.F.A.); (N.A.); (M.A.)
| | - Mohammed Alasmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (A.F.A.); (N.A.); (M.A.)
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11
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Mucoadhesion and Mechanical Assessment of Oral Films. Eur J Pharm Sci 2021; 159:105727. [DOI: 10.1016/j.ejps.2021.105727] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 01/16/2021] [Accepted: 01/17/2021] [Indexed: 02/07/2023]
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12
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Arabinoxylan and rhamnogalacturonan mucilage: Outgoing and potential trends of pharmaceutical, environmental, and medicinal merits. Int J Biol Macromol 2020; 165:2550-2564. [PMID: 33115647 DOI: 10.1016/j.ijbiomac.2020.10.175] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/16/2020] [Accepted: 10/21/2020] [Indexed: 12/18/2022]
Abstract
Demand for safe, environmentally friendly and minimally processed food additives with intrinsic technological (stabilizing, texturizing, structuring) and functional potential is already on the rise. There are actually several natural excipients eligible for pharmaceutical formulation. Mucilage, as a class constitutes arabinoxylan and rhamnogalacturonan-based biomolecules used in the pharmaceutical, environmental as well as phytoremediation industries owing to its particular structure and properties. These compounds are widely used in pharmaceutical, food and cosmetics, as well as, in agriculture, paper industries. This review emphasizes mucilage valuable applications in the pharmaceutical and industrial fields. In this context, much focus has recently been given to the valorization of mucilage as an ingredient for food or nutraceutical applications. Furthermore, different optimization and extraction techniques are presented to develop better utilization and/or enhanced yield of mucilage. The highlighted mucilage extraction methods warrant assessing up-scale processes to encourage for its industrial applications. The current article capitalizes on cutting-edge characteristics of mucilage and posing for other possible innovative applications in non-food industries. Here, the first holistic overview of mucilage with regards to its physicochemical properties and potential novel usages is presented.
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Zaman M, Hassan R, Razzaq S, Mahmood A, Amjad MW, Raja MAG, Qaisar AA, Majeed A, Hanif M, Tahir RA. Fabrication of polyvinyl alcohol based fast dissolving oral strips of sumatriptan succinate and metoclopramide HCL. Sci Prog 2020; 103:36850420964302. [PMID: 33151131 PMCID: PMC10358599 DOI: 10.1177/0036850420964302] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Migraine is a throbbing condition, usually associated with nausea and vomiting and requires concurrent administration of anti-migraine along with anti-emetic therapy. The current study was undertaken with an aim to fabricate fast dissolving oral strips (FDOSs) containing Sumatriptan succinate (anti-migraine) and Metoclopramide HCl (anti-emetic) in combination without involving any superdisintegrant. Hydrophilic polymer polyvinyl alcohol (PVA) was used alone with three concentrations of 100, 125, and 150 mg using variable concentrations of glycerol. The solvent casting technique was employed to formulate FDOSs and were evaluated for surface morphology, mechanical properties, surface pH, % moisture content, disintegration time (DT), total dissolving time (TDT), drug contents, and dissolution profile. PVA (150 mg) with 5% glycerol concentration gave best formulation results. FDOSs have exhibited good tensile strength with smooth and uniform surface morphology. DT was ranged from 7.7 to 28 s; while TDT was from 26.4 to 77.6 s. Both polymer and plasticizer concentrations were found to be influencing the characteristics of the strips. Dissolution studies were carried out in distilled water for 15 min and all the formulations have shown released more than 50% drug within first 2 min thereby highlighting the usefulness of FDOSs for the delivery of both drugs in combination significantly. Optimized combination of ingredients was found to be suitable for the formulation of FDOSs for simultaneous delivery of Metoclopramide HCl and Sumatriptan succinate.
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Affiliation(s)
- Muhammad Zaman
- Faculty of Pharmacy, University of Central Punjab, Lahore, Pakistan
- Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan
| | - Rabia Hassan
- Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan
| | - Sobia Razzaq
- Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan
| | - Asif Mahmood
- Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan
| | | | | | - Asif Ali Qaisar
- Faculty of Pharmacy and Alternative Medicine, Islamia University Bahawalpur, Pakistan
| | - Abdul Majeed
- Faculty of Pharmacy, Bahauddin Zakariya University Multan, Pakistan
| | - Muhammad Hanif
- Faculty of Pharmacy, Bahauddin Zakariya University Multan, Pakistan
| | - Rana Azam Tahir
- Institute of Pharmaceutical Technology, The University of Bonn, Germany
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Liu Y, Wang S, Kang J, Wang N, Xiao M, Li Z, Wang C, Guo Q, Hu X. Arabinoxylan from wheat bran: molecular degradation and functional investigation. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105914] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Modified glutinous rice starch-chitosan composite films for buccal delivery of hydrophilic drug. Carbohydr Polym 2020; 245:116556. [DOI: 10.1016/j.carbpol.2020.116556] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 05/24/2020] [Accepted: 05/31/2020] [Indexed: 12/15/2022]
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Puri V, Sharma A, Kumar P, Singh I. Thiolation of Biopolymers for Developing Drug Delivery Systems with Enhanced Mechanical and Mucoadhesive Properties: A Review. Polymers (Basel) 2020; 12:E1803. [PMID: 32796741 PMCID: PMC7464630 DOI: 10.3390/polym12081803] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/03/2020] [Accepted: 08/04/2020] [Indexed: 01/09/2023] Open
Abstract
Biopolymers are extensively used for developing drug delivery systems as they are easily available, economical, readily modified, nontoxic, biodegradable and biocompatible. Thiolation is a well reported approach for enhancing mucoadhesive and mechanical properties of polymers. In the present review article, for the modification of biopolymers different thiolation methods and evaluation/characterization techniques have been discussed in detail. Reported literature on thiolated biopolymers with enhanced mechanical and mucoadhesive properties has been presented conspicuously in text as well as in tabular form. Patents filed by researchers on thiolated polymers have also been presented. In conclusion, thiolation is an easily reproducible and efficient method for customization of mucoadhesive and mechanical properties of biopolymers for drug delivery applications.
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Affiliation(s)
- Vivek Puri
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (V.P.); (A.S.)
- Chitkara University School of Pharmacy, Chitkara University, Himachal Pradesh 174103, India
| | - Ameya Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (V.P.); (A.S.)
- Chitkara University School of Pharmacy, Chitkara University, Himachal Pradesh 174103, India
| | - Pradeep Kumar
- Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa;
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (V.P.); (A.S.)
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Tian Y, Orlu M, Woerdenbag HJ, Scarpa M, Kiefer O, Kottke D, Sjöholm E, Öblom H, Sandler N, Hinrichs WLJ, Frijlink HW, Breitkreutz J, Visser JC. Oromucosal films: from patient centricity to production by printing techniques. Expert Opin Drug Deliv 2019; 16:981-993. [DOI: 10.1080/17425247.2019.1652595] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Yu Tian
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, AV, The Netherlands
| | - Mine Orlu
- School of Pharmacy, University College London, London, Bloomsbury, UK
| | - Herman J. Woerdenbag
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, AV, The Netherlands
| | | | - Olga Kiefer
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Dina Kottke
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Erica Sjöholm
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, Turku, FI, Finland
| | - Heidi Öblom
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, Turku, FI, Finland
| | - Niklas Sandler
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, Turku, FI, Finland
| | - Wouter L. J. Hinrichs
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, AV, The Netherlands
| | - Henderik W. Frijlink
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, AV, The Netherlands
| | - Jörg Breitkreutz
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - J. Carolina Visser
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, AV, The Netherlands
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Drug Release Profiles and Disintegration Properties of Pectin Films. MATERIALS 2019; 12:ma12030355. [PMID: 30678323 PMCID: PMC6384619 DOI: 10.3390/ma12030355] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 01/16/2019] [Accepted: 01/21/2019] [Indexed: 12/21/2022]
Abstract
We assessed the disintegration profiles of the film dosage forms (FDs) prepared using pectin by measuring the amount of pectin dissolved from the films in a limited amount of aqueous medium. Furthermore, we used miconazole and dexamethasone as standard drugs and investigated the relationship between the disintegration rate of the FDs and the rate of drug release. We used two types of pectin in this study to develop thin films with a thickness of approximately 25⁻35 μm. The FDs gradually disintegrated in the aqueous medium, and the disintegration profile of the FDs differed depending on the types of pectin. In addition, the rate of disintegration of the film matrix affected the dissolution rate of the drug incorporated into the FD. Thus, our results show that FDs prepared using pectin are beneficial because of their high solubility in a limited amount of medium, and the rate of drug release from the FDs can be regulated by selecting a specific type of pectin or by altering the concentration of the film base.
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Mendez-Encinas MA, Carvajal-Millan E, Rascon-Chu A, Astiazaran-Garcia HF, Valencia-Rivera DE. Ferulated Arabinoxylans and Their Gels: Functional Properties and Potential Application as Antioxidant and Anticancer Agent. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:2314759. [PMID: 30186541 PMCID: PMC6116397 DOI: 10.1155/2018/2314759] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 05/19/2018] [Accepted: 07/02/2018] [Indexed: 12/29/2022]
Abstract
In the last years, biomedical research has focused its efforts in the development of new oral delivery systems for the treatment of different diseases. Ferulated arabinoxylans are polysaccharides from cereals that have been gaining attention in the pharmaceutical field due to their prebiotic, antioxidant, and anticancer properties. The antioxidant and anticancer properties of these polysaccharides make them attractive compounds for the treatment of cancer, particularly colon cancer. In addition, ferulated arabinoxylans can form covalent gels through the cross-linking of their ferulic acids. Due to their particular characteristics, ferulated arabinoxylan gels represent an excellent alternative as colon-targeted drug delivery systems. The aim of the present work is to review the physicochemical and functional properties of ferulated arabinoxylans and their gels and to present the future perspectives for potential application as antioxidant and anticancer agents.
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Affiliation(s)
- Mayra Alejandra Mendez-Encinas
- Biopolymers, Research Center for Food and Development, CIAD, A.C. Carretera a La Victoria Km. 0.6, 83304 Hermosillo, SON, Mexico
| | - Elizabeth Carvajal-Millan
- Biopolymers, Research Center for Food and Development, CIAD, A.C. Carretera a La Victoria Km. 0.6, 83304 Hermosillo, SON, Mexico
| | - Agustín Rascon-Chu
- Biotechnology, Research Center for Food and Development, CIAD, A.C. Carretera a La Victoria Km. 0.6, 83304 Hermosillo, SON, Mexico
| | | | - Dora Edith Valencia-Rivera
- Department of Chemical Biological and Agropecuary Sciences, University of Sonora, Avenida Universidad e Irigoyen, 83621 Caborca, SON, Mexico
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Zaman M, Qureshi S, Sultana K, Hanif M, Mahmood A, Shaheryar ZA, Gulzar F, Barkat K, Abdel-Daim MM. Application of quasi-emulsification and modified double emulsification techniques for formulation of tacrolimus microsponges. Int J Nanomedicine 2018; 13:4537-4548. [PMID: 30127605 PMCID: PMC6091474 DOI: 10.2147/ijn.s166413] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background The present study was to develop a stable and sustained-release delivery system of tacrolimus (TCM). TCM is a macrolide antibiotic used as an immunosuppressant. It is formulated as a microsponge, which is a safe and effective delivery system with reduced side effects. Materials and methods The method used to prepare ethyl cellulose (EC) and xanthan gum (XG)-facilitated EC-based microsponges employed emulsification and modified double emulsification techniques. TCM-containing microsponges were prepared using varying concentrations followed by evaluation of micromeritics, compatibility of drug and excipients, production yield, drug content and entrapment efficiency, zeta potential, size distribution and drug release. Results The results showed excellent flow properties with adequate entrapment efficiency of the system and satisfactory release of active pharmaceutical ingredient. In vitro dissolution studies, which were conducted to determine the amount of drug released, illustrated a pronounced sustained effect up to 8 h. Zeta size and zeta potential analysis of microsponges confirmed the existence of micro-sized (1.99–3.09 µm) and stable particles (−15.33 to −3.38 mV), respectively. Conclusion Conclusively, the applied technique and selected combination of ingredients were found suitable for the preparation of TCM-containing sustained-release microsponges.
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Affiliation(s)
- Muhammad Zaman
- Faculty of Pharmacy, University of Lahore, Lahore, Pakistan,
| | - Sundus Qureshi
- Faculty of Pharmacy, University of Lahore, Lahore, Pakistan,
| | - Kishwar Sultana
- Faculty of Pharmacy, University of Lahore, Lahore, Pakistan,
| | - Muhammad Hanif
- Department of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Asif Mahmood
- Faculty of Pharmacy, University of Lahore, Lahore, Pakistan,
| | | | - Faisal Gulzar
- Faculty of Pharmacy, University of Lahore, Lahore, Pakistan,
| | - Kashif Barkat
- Faculty of Pharmacy, University of Lahore, Lahore, Pakistan,
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Adeleke OA, Tsai PC, Karry KM, Monama NO, Michniak-Kohn BB. Isoniazid-loaded orodispersible strips: Methodical design, optimization and in vitro-in silico characterization. Int J Pharm 2018; 547:347-359. [PMID: 29879506 DOI: 10.1016/j.ijpharm.2018.06.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 05/30/2018] [Accepted: 06/03/2018] [Indexed: 02/06/2023]
Abstract
Drug treatment remains the most effective global approach to managing and preventing tuberculosis. This work focuses on formulating and evaluating an optimized polyvinyl alcohol-polyethylene glycol based orodispersible strip containing isoniazid, a first-line anti-tubercular agent. A solvent casting method guided through a Taguchi experimental design was employed in the fabrication, optimization and characterization of the orodispersible strip. The optimized strip was physically amalgamated with a monolayer, uniformly distributed surface geometry. It was 159.2 ± 3.0 µm thick, weighed 36.9 ± 0.3 mg, had an isoniazid load of 99.5 ± 0.8%w/w, disintegration and dissolution times of 17.6 ± 0.9 s and 5.5 ± 0.1 min respectively. In vitro crystallinity, thermal measurements and in silico thermodynamic predictions confirmed the strip's intrinsic miscibility, thermodynamic stability and amorphous nature. A Korsmeyer-Peppas (r = 0.99; n > 1 = 1.07) fitted kinetics typified by an initial burst release of 49.4 ± 1.9% at 4 min and a total of 99.8 ± 3.3% at 30 min was noted. Ex vivo isoniazid permeation through porcine buccal mucosa was bi-phasic and characterized by a 50.4 ± 3.8% surge and 95.6 ± 2.9% at 5 and 120 min respectively. The strip was physicomechanically robust, environmentally stable and non-cytotoxic.
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Affiliation(s)
- Oluwatoyin A Adeleke
- Center for Dermal Research and Laboratory for Drug Delivery, NJ Center for Biomaterials, Life Sciences Building, Rutgers-The State University of New Jersey, 145 Bevier Road, Piscataway, NJ 08854, USA; Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers-The State University of New Jersey, Piscataway, NJ 08854, USA; Center for High Performance Computing, Council for Scientific and Industrial Research, Meiring Naude Road, Pretoria 0001, South Africa; Division of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria 0208, South Africa.
| | - Pei-Chin Tsai
- Center for Dermal Research and Laboratory for Drug Delivery, NJ Center for Biomaterials, Life Sciences Building, Rutgers-The State University of New Jersey, 145 Bevier Road, Piscataway, NJ 08854, USA; Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers-The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Krizia M Karry
- Center for Dermal Research and Laboratory for Drug Delivery, NJ Center for Biomaterials, Life Sciences Building, Rutgers-The State University of New Jersey, 145 Bevier Road, Piscataway, NJ 08854, USA
| | - Nkwe O Monama
- Center for High Performance Computing, Council for Scientific and Industrial Research, Meiring Naude Road, Pretoria 0001, South Africa
| | - Bozena B Michniak-Kohn
- Center for Dermal Research and Laboratory for Drug Delivery, NJ Center for Biomaterials, Life Sciences Building, Rutgers-The State University of New Jersey, 145 Bevier Road, Piscataway, NJ 08854, USA; Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers-The State University of New Jersey, Piscataway, NJ 08854, USA.
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Caine BA, Dardonville C, Popelier PLA. Prediction of Aqueous p K a Values for Guanidine-Containing Compounds Using Ab Initio Gas-Phase Equilibrium Bond Lengths. ACS OMEGA 2018; 3:3835-3850. [PMID: 31458625 PMCID: PMC6641350 DOI: 10.1021/acsomega.8b00142] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 03/21/2018] [Indexed: 05/06/2023]
Abstract
In this work, we demonstrate the existence of linear relationships between gas-phase equilibrium bond lengths of the guanidine skeleton of 2-(arylamino)imidazolines and their aqueous pK a value. For a training set of 22 compounds, in the most stable conformation of their lowest energy tautomeric form, three bonds were found to exhibit r 2 and q 2 values >0.95 and root-mean-squared-error of estimation values ≤0.25 when regressed individually against pK a. The equations describing these one-bond-length linear relationships, in addition to a multiple linear regression model using all three bond lengths, were then used to predict the experimental pK a values of an external test set of further 27 derivatives. The optimal protocol we derive here shows an overall mean absolute error (MAE) of 0.20 and standard deviation of errors of 0.18 for the test set. Predictions for a second test set of diphenyl-based bis(2-iminoimidazolidines) yielded an MAE of 0.27 and a standard deviation of 0.10. The predictive power of the optimal model is further demonstrated by its ability to correct erroneously reported experimental values. Finally, a previously established guanidine model is recalibrated at a new level of theory, and predictions are made for novel phenylguanidine derivatives, showing an MAE of just 0.29. The protocols established and tested here pass both of Roy's modern and stringent MAE-based criteria for a "good" quantitative structure-activity relationship/quantitative structure-property relationship model predictivity. Notably, the ab initio bond length high correlation subset protocol developed in this work demonstrates lower MAE values than the Marvin program by ChemAxon for all test sets.
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Affiliation(s)
- Beth A. Caine
- Manchester
Institute of Biotechnology (MIB), 131 Princess Street, Manchester M1 7DN, Great Britain
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, Great
Britain
| | | | - Paul L. A. Popelier
- Manchester
Institute of Biotechnology (MIB), 131 Princess Street, Manchester M1 7DN, Great Britain
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, Great
Britain
- E-mail: . Phone: +44 161
3064511 (P.L.A.P.)
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Zaman M, Hanif M, Shaheryar ZA. Development of Tizanidine HCl-Meloxicam loaded mucoadhesive buccal films: In-vitro and in-vivo evaluation. PLoS One 2018; 13:e0194410. [PMID: 29566073 PMCID: PMC5864138 DOI: 10.1371/journal.pone.0194410] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 03/02/2018] [Indexed: 11/18/2022] Open
Abstract
The purpose of the study was to develop Tizanidine HCl (TZN) and Meloxicam (MLX) loaded bilayer mucoadhesive films intended for buccal administration, aiming to enhance the bioavailability. Bilayer films were prepared by solvent evaporation technique selecting arabinoxylan (ARX) as a sustained release (SR) layer forming polymer and hydroxypropyl methylcellulose (HPMC) E-15 as an immediate release (IR) layer-forming polymer. Prepared films were subjected to in-vitro drug release, surface morphology, mechanical strength, compatibility of the ingredients, drug contents, ex-vivo mucoadhesion strength and drug permeation. Crossover study design was applied to study the in-vivo pharmacokinetics by using albino rabbits. Various pharmacokinetic parameters including AUC, Cmax, tmax and t1/2 of both drugs loaded in films were compared with standard solution/dispersion administered to the rabbits at the dose of 1mg/kg. The results unveiled instant release and permeation of MLX from IR layer, while good controlled release and permeation characteristics of TZN from SR films over 8 h. films were of uniform thickness with smooth surface and satisfactory mechanical strength. Mucoadhesion strength was sufficient to provide suitable contact time with mucosal membrane. The pharmacokinetic study exhibited prompt absorption of MLX with better AUC 0-t (6655.64 ng/ml*h vs 6538.99 ng/ml*h) and Cmax (436.98 ng/ml vs 411.33 ng/ml) from oral dispersion. Similarly buccal films has shown enhanced half-life (9.91hr vs 2.51 hr), AUC 0-t (1043.4 ng/ml*h vs 149.1 ng/ml*h) and Cmax (91.92 ng/ml vs 42.29 ng/ml) from oral solution. A statistical investigation disclosed a significantly improved pharmacokinetics of TZN and MLX after their absorption across buccal route following administration of buccal film (p<0.05). ARX proved expedient and bilayer buccal films as a drug delivery system ascertained the dual effect of providing instant release of one active agent and persistent release of another one with improved pharmacokinetics.
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Affiliation(s)
- Muhammad Zaman
- Department of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
- Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan
| | - Muhammad Hanif
- Department of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
- * E-mail:
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Zaman M, Hanif M, Sultana K, Atta-Ur-Rehman. Synthesis of thiolated arabinoxylan and its application as sustained release mucoadhesive film former. ACTA ACUST UNITED AC 2018; 13:025019. [PMID: 29176054 DOI: 10.1088/1748-605x/aa9d69] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The present work aimed to synthesize thiolated arabinoxylan (TAX), and to evaluate its mucoadhesive potential. Synthesis of TAX was accomplished by esterification of arabinoxylan (AX) with thioglycolic acid (TGA). The appearance of a characteristic peak at 2516 cm-1 in the FTIR spectrum of TAX, and presence of 6.01 ± 1.03 m moles of thiol per gram of the polymer confirmed successful thiolation of AX. The incorporation of the thiol group considerably promoted mucoadhesive strength of the polymer-viz. 3.99-fold. Moreover, in vivo safety analysis in albino rats revealed TAX to be safe in the concentration range of 750-1000 mg kg-1 body weight. Synthesized TAX was utilized to prepare Tizanidine HCl (TZN HCl) loaded sustained release (SR) mucoadhesive buccal films using a solvent casting technique. Results proved that the prepared films were of uniform thickness, good mechanical strength (with folding endurance >300), acceptable moisture contents (5%-7%) and surface pH (6.23 ± 0.81 to 6.43 ± 0.49) compatible to that of the buccal cavity. Presence of greater that 90% of drug contents indicated the excellent drug loading ability of the prepared films. Results of in vitro dissolution studies and ex vivo permeation studies conducted respectively by USP dissolution apparatus II and Franz diffusion cell indicated that sustained effect of TAX was achieved for 8 h. These results have conclusively proven that TAX has the potential to improve the bioavailability of TZN HCl due to enhanced mucoadhesion in buccal cavity, hence signifying its suitability as a mucoadhesive buccal film former.
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Affiliation(s)
- Muhammad Zaman
- Department of Pharmacy, Bahauddin Zakariya University, Multan 60800, Pakistan. Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan
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26
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Zaman M, Hanif M. In vitro and ex vivo assessment of hydrophilic polymer- and plasticizer-based thin buccal films designed by using central composite rotatable design for the delivery of meloxicam. ADVANCES IN POLYMER TECHNOLOGY 2017. [DOI: 10.1002/adv.21841] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Muhammad Zaman
- Department of Pharmaceutics; Faculty of Pharmacy; Bahauddin Zakariya University; Multan Pakistan
- Department of Pharmaceutics; Faculty of Pharmacy; The University of Lahore; Lahore Pakistan
| | - Muhammad Hanif
- Department of Pharmaceutics; Faculty of Pharmacy; Bahauddin Zakariya University; Multan Pakistan
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