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Ran S, Xue L, Wei X, Huang J, Yan X, He TC, Tang Z, Zhang H, Gu M. Recent advances in injectable hydrogel therapies for periodontitis. J Mater Chem B 2024; 12:6005-6032. [PMID: 38869470 DOI: 10.1039/d3tb03070a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Periodontitis is an immune-inflammatory disease caused by dental plaque, and deteriorates the periodontal ligament, causes alveolar bone loss, and may lead to tooth loss. To treat periodontitis, antibacterial and anti-inflammation approaches are required to reduce bone loss. Thus, appropriate drug administration methods are significant. Due to their "syringeability", biocompatibility, and convenience, injectable hydrogels and associated methods have been extensively studied and used for periodontitis therapy. Such hydrogels are made from natural and synthetic polymer materials using physical and/or chemical cross-linking approaches. Interestingly, some injectable hydrogels are stimuli-responsive hydrogels, which respond to the local microenvironment and form hydrogels that release drugs. Therefore, as injectable hydrogels are different and highly varied, we systematically reviewed the periodontal treatment field from three perspectives: raw material sources, cross-linking methods, and stimuli-responsive methods. We then discussed current challenges and opportunities for the translation of hydrogels to clinic, which may guide further injectable hydrogel designs for periodontitis.
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Affiliation(s)
- Shidian Ran
- Chongqing Key Laboratory of Oral Diseases, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, the Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, China.
| | - Linyu Xue
- Chongqing Key Laboratory of Oral Diseases, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, the Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, China.
| | - Xiaorui Wei
- Chongqing Key Laboratory of Oral Diseases, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, the Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, China.
| | - Jindie Huang
- Chongqing Key Laboratory of Oral Diseases, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, the Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, China.
| | - Xingrui Yan
- Chongqing Key Laboratory of Oral Diseases, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, the Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, China.
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine, and the Affiliated Hospitals of Chongqing Medical University, Chongqing 400016, China
| | - Zhurong Tang
- Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Hongmei Zhang
- Chongqing Key Laboratory of Oral Diseases, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, the Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, China.
| | - Mengqin Gu
- Chongqing Key Laboratory of Oral Diseases, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, the Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, China.
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Andrews GP, Laverty T, Jones DS. Mucoadhesive Polymeric Polyologels Designed for the Treatment of Periodontal and Related Diseases of the Oral Cavity. Polymers (Basel) 2024; 16:589. [PMID: 38475273 DOI: 10.3390/polym16050589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/03/2024] [Accepted: 02/12/2024] [Indexed: 03/14/2024] Open
Abstract
The study objective was to design and characterise herein unreported polyologels composed of a range of diol and triol solvents and polyvinyl methyl ether-co-maleic acid (PVM/MA) and, determine their potential suitability for the treatment of periodontal and related diseases in the oral cavity using suitable in vitro methodologies. Polyologel flow and viscoelastic properties were controlled by the choice of solvent and the concentration of polymer. At equivalent polymer concentrations, polyologels prepared with glycerol (a triol) exhibited the greatest elasticity and resistance to deformation. Within the diol solvents (PEG 400, pentane 1,5-diol, propane 1,2-diol, propane 1,3-diol, and ethylene glycol), PEG 400 polyologels possessed the greatest elasticity and resistance to deformation, suggesting the importance of distance of separation between the diol groups. Using Raman spectroscopy bond formation between the polymer carbonyl group and the diol hydroxyl groups was observed. Polyologel mucoadhesion was influenced by viscoelasticity; maximum mucoadhesion was shown by glycerol polyologels at the highest polymer concentration (20% w/w). Similarly, the choice of solvent and concentration of PVM/MA affected the release of tetracycline from the polyologels. The controlled release of tetracycline for at least 10 h was observed for several polyologels, which, in combination with their excellent mucoadhesion and flow properties, offer possibilities for the clinical use of these systems to treat diseases within the oral cavity.
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Affiliation(s)
- Gavin P Andrews
- School of Pharmacy, Queen's University of Belfast, 97, Lisburn Road, Belfast BT9 7BL, UK
| | - Thomas Laverty
- School of Pharmacy, Queen's University of Belfast, 97, Lisburn Road, Belfast BT9 7BL, UK
| | - David S Jones
- School of Pharmacy, Queen's University of Belfast, 97, Lisburn Road, Belfast BT9 7BL, UK
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Karmakar S, Shanmugasundaram S, Modak B. Oleogel-based drug delivery for the treatment of periodontitis: current strategies and future perspectives. F1000Res 2023; 12:1228. [PMID: 38690138 PMCID: PMC11058454 DOI: 10.12688/f1000research.140173.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/08/2023] [Indexed: 05/02/2024] Open
Abstract
Periodontitis is the chronic inflammation of tooth-supporting tissues that leads to loss of tooth support if untreated. Conventional therapy for periodontitis (mechanical removal of microbial biofilm and oral hygiene enforcement) is augmented by anti-microbial and anti-inflammatory drugs. These drugs are frequently delivered locally into the periodontal pocket for maximum efficiency and minimum adverse effects. The potential of oleogels for periodontal drug delivery has been discussed and further, the future scope of oleogel-based drug delivery systems in dentistry. An oleogel-based local drug delivery system offers several advantages over other systems. Superior mechanical properties (firmness and compressibility), muco-adhesion, shear thinning, thixotropy, controlled drug release and the ability to incorporate water-insoluble drugs clearly distinguish and highlight the potential of oleogels as periodontal local drug delivery systems. Bigels can combine the qualities of both hydrogels and oleogels to provide a more promising option for drug delivery. However, there is limited evidence concerning oleogels as local drug delivery agents in periodontics. Further studies are needed to discern the clinical efficacy of oleogel-based drug delivery systems.
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Affiliation(s)
- Shaswata Karmakar
- Department of Periodontology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Shashikiran Shanmugasundaram
- Department of Periodontology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Baishakhi Modak
- Department of Oral and Maxillofacial Pathology and Oral Microbiology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
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Paul M, Pramanik SD, Sahoo RN, Dey YN, Nayak AK. Dental delivery systems of antimicrobial drugs using chitosan, alginate, dextran, cellulose and other polysaccharides: A review. Int J Biol Macromol 2023; 247:125808. [PMID: 37460072 DOI: 10.1016/j.ijbiomac.2023.125808] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/20/2023] [Accepted: 07/01/2023] [Indexed: 07/24/2023]
Abstract
Dental caries, periodontal disease, and endodontic disease are major public health concerns worldwide due to their impact on individuals' quality of life. The present problem of dental disorders is the removal of the infection caused by numerous microbes, particularly, bacteria (both aerobes and anaerobes). The most effective method for treating and managing dental diseases appears to be the use of antibiotics or other antimicrobials, which are incorporated in some drug delivery systems. However, due to their insufficient bioavailability, poor availability for gastrointestinal absorption, and pharmacokinetics after administration via the oral route, many pharmaceutical medicines or natural bioactive substances have limited efficacy. During past few decades, a range of polysaccharide-based systems have been widely investigated for dental dug delivery. The polysaccharide-based carrier materials made of chitosan, alginate, dextran, cellulose and other polysaccharides have recently been spotlighted on the recent advancements in preventing, treating and managing dental diseases. The objective of the current review article is to present a brief comprehensive overview of the recent advancements in polysaccharide-based dental drug delivery systems for the delivery of different antimicrobial drugs.
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Affiliation(s)
- Mousumi Paul
- Department of Pharmacology, Dr. B.C. Roy College of Pharmacy and Allied Health Sciences, Durgapur 713206, West Bengal, India
| | - Siddhartha Das Pramanik
- Department of Biosciences and Bioengineering, Indian Institute Technology-Roorkee, Roorkee 247667, Uttarakhand, India
| | - Rudra Narayan Sahoo
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar 751003, Odisha, India
| | - Yadu Nandan Dey
- Department of Pharmacology, Dr. B.C. Roy College of Pharmacy and Allied Health Sciences, Durgapur 713206, West Bengal, India.
| | - Amit Kumar Nayak
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar 751003, Odisha, India.
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Sezgin-Bayindir Z, Losada-Barreiro S, Fernández-Bravo S, Bravo-Díaz C. Innovative Delivery and Release Systems for Antioxidants and Other Active Substances in the Treatment of Cancer. Pharmaceuticals (Basel) 2023; 16:1038. [PMID: 37513948 PMCID: PMC10383431 DOI: 10.3390/ph16071038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/12/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Cancer is one of the major diseases leading to death worldwide, and the fight against the disease is still challenging. Cancer diseases are usually associated with increased oxidative stress and the accumulation of reactive oxygen and nitrogen species as a result of metabolic alterations or signaling aberrations. While numerous antioxidants exhibit potential therapeutic properties, their clinical efficiency against cancer is limited and even unproven. Conventional anticancer antioxidants and drugs have, among others, the great disadvantage of low bioavailability, poor targeting efficiency, and serious side effects, constraining their use in the fight against diseases. Here, we review the rationale for and recent advances in potential delivery systems that could eventually be employed in clinical research on antioxidant therapy in cancer. We also review some of the various strategies aimed at enhancing the solubility of poorly water-soluble active drugs, including engineered delivery systems such as lipid-based, polymeric, and inorganic formulations. The use of cyclodextrins, micro- and nanoemulsions, and thermosensitive smart liposomes as useful systems for the delivery and release of poorly aqueous-soluble drugs, improving their bioactivity and stability, is also addressed. We also provide some details on their formulation processes and their use in a variety of medical applications. Finally, we briefly cover a case study specifically focused on the use of delivery systems to minimize oral cancer and associated dental problems.
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Affiliation(s)
- Zerrin Sezgin-Bayindir
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ankara University, Ankara 06560, Turkey
| | - Sonia Losada-Barreiro
- Departamento de Química-Física, Facultade de Química, Universidade de Vigo, 36200 Vigo, Spain
| | - Sofía Fernández-Bravo
- Odontology Department, Primary Health Care Unit, Galician Health Service (SERGAS), Camiño do Lodairo s/n, 15570 Narón, Spain
| | - Carlos Bravo-Díaz
- Departamento de Química-Física, Facultade de Química, Universidade de Vigo, 36200 Vigo, Spain
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Barboza ADS, Ribeiro de Andrade JS, Ferreira ML, Peña CLD, da Costa JS, Fajardo AR, Lund RG. Propolis Controlled Delivery Systems for Oral Therapeutics in Dental Medicine: A Systematic Review. Dent J (Basel) 2023; 11:162. [PMID: 37504228 PMCID: PMC10378523 DOI: 10.3390/dj11070162] [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: 05/17/2023] [Revised: 06/11/2023] [Accepted: 06/14/2023] [Indexed: 07/29/2023] Open
Abstract
This systematic review synthesizes the existing evidence in the literature regarding the association of propolis with controlled delivery systems (DDSs) and its potential therapeutic action in dental medicine. Two independent reviewers performed a literature search up to 1 June 2023 in five databases: PubMed/Medline, Web of Science, Cochrane Library, Scopus, and Embase, to identify the eligible studies. Clinical, in situ, and in vitro studies that investigated the incorporation of propolis as the main agent in DDSs for dental medicine were included in this study. Review articles, clinical cases, theses, dissertations, conference abstracts, and studies that had no application in dentistry were excluded. A total of 2019 records were initially identified. After carefully examining 21 full-text articles, 12 in vitro studies, 4 clinical, 1 animal model, and 3 in vivo and in vitro studies were included (n = 21). Relevant data were extracted from the included studies and analyzed qualitatively. The use of propolis has been reported in cariology, endodontics, periodontics, stomatology, and dental implants. Propolis has shown non-cytotoxic, osteoinductive, antimicrobial, and anti-inflammatory properties. Moreover, propolis can be released from DDS for prolonged periods, presenting biocompatibility, safety, and potential advantage for applications in dental medicine.
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Affiliation(s)
- Andressa da Silva Barboza
- Graduate Program in Dentistry, Pelotas Dental School, Federal University of Pelotas, Gonçalves Chaves Street, 457/Rm 702-3, Downtown Pelotas, Pelotas 96015-560, RS, Brazil
| | - Juliana Silva Ribeiro de Andrade
- Graduate Program in Dentistry, Pelotas Dental School, Federal University of Pelotas, Gonçalves Chaves Street, 457/Rm 702-3, Downtown Pelotas, Pelotas 96015-560, RS, Brazil
- Department of Dentistry, Federal University of Santa Catarina (UFSC), Av. Delfino Conti, s/n-Trindade, Florianópolis 88040-900, SC, Brazil
| | - Monika Lamas Ferreira
- Graduate Program in Dentistry, Pelotas Dental School, Federal University of Pelotas, Gonçalves Chaves Street, 457/Rm 702-3, Downtown Pelotas, Pelotas 96015-560, RS, Brazil
| | - Carla Lucía David Peña
- Graduate Program in Dentistry, Pelotas Dental School, Federal University of Pelotas, Gonçalves Chaves Street, 457/Rm 702-3, Downtown Pelotas, Pelotas 96015-560, RS, Brazil
| | - Juliê Silveira da Costa
- Laboratory of Technology and Development of Composites and Polymeric Materials (LaCoPol), Center for Chemical, Pharmaceutical and Food Sciences, Federal University of Pelotas, UFPel, Campus Capão do Leão, Pelotas 96010-900, RS, Brazil
| | - André Ricardo Fajardo
- Laboratory of Technology and Development of Composites and Polymeric Materials (LaCoPol), Center for Chemical, Pharmaceutical and Food Sciences, Federal University of Pelotas, UFPel, Campus Capão do Leão, Pelotas 96010-900, RS, Brazil
| | - Rafael Guerra Lund
- Graduate Program in Dentistry, Pelotas Dental School, Federal University of Pelotas, Gonçalves Chaves Street, 457/Rm 702-3, Downtown Pelotas, Pelotas 96015-560, RS, Brazil
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Budală DG, Luchian I, Tatarciuc M, Butnaru O, Armencia AO, Virvescu DI, Scutariu MM, Rusu D. Are Local Drug Delivery Systems a Challenge in Clinical Periodontology? J Clin Med 2023; 12:4137. [PMID: 37373830 DOI: 10.3390/jcm12124137] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/13/2023] [Accepted: 06/18/2023] [Indexed: 06/29/2023] Open
Abstract
Placing antimicrobial treatments directly in periodontal pockets is an example of the local administration of antimicrobial drugs to treat periodontitis. This method of therapy is advantageous since the drug concentration after application far surpasses the minimum inhibitory concentration (MIC) and lasts for a number of weeks. As a result, numerous local drug delivery systems (LDDSs) utilizing various antibiotics or antiseptics have been created. There is constant effort to develop novel formulations for the localized administration of periodontitis treatments, some of which have failed to show any efficacy while others show promise. Thus, future research should focus on the way LDDSs can be personalized in order to optimize future clinical protocols in periodontal therapy.
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Affiliation(s)
- Dana Gabriela Budală
- Department of Implantology, Removable Prostheses, Dental Prostheses Technology, "Grigore T. Popa" University of Medicine and Pharmacy, 16 Universității Street, 700115 Iași, Romania
| | - Ionut Luchian
- Department of Periodontology, Faculty of Dental Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 Universității Street, 700115 Iași, Romania
| | - Monica Tatarciuc
- Department of Implantology, Removable Prostheses, Dental Prostheses Technology, "Grigore T. Popa" University of Medicine and Pharmacy, 16 Universității Street, 700115 Iași, Romania
| | - Oana Butnaru
- Department of Biophysics, Faculty of Dental Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania
| | - Adina Oana Armencia
- Department of Surgery and Oral Health, Faculty of Dental Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 Universității Street, 700115 Iași, Romania
| | - Dragoș Ioan Virvescu
- Department of Fixed Prosthodontics, Faculty of Dental Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania
| | - Monica Mihaela Scutariu
- Department of Implantology, Removable Prostheses, Dental Prostheses Technology, "Grigore T. Popa" University of Medicine and Pharmacy, 16 Universității Street, 700115 Iași, Romania
| | - Darian Rusu
- Department of Periodontology, Faculty of Dental Medicine, "Anton Sculean" Research Center for Periodontal and Peri-Implant Diseases, "Victor Babes" University of Medicine and Pharmacy, Piața Eftimie Murgu 2, 300041 Timisoara, Romania
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Diyatri I, Juliastuti WS, Ridwan RD, Ananda GC, Waskita FA, Juliana NV, Khansa SP, Pratiwi RT, Putri CR. Antibacterial effect of a gingival patch containing nano-emulsion of red dragon fruit peel extract on Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, and Fusobacterium nucleatum assessed in vitro. J Oral Biol Craniofac Res 2023; 13:386-391. [PMID: 37077878 PMCID: PMC10106915 DOI: 10.1016/j.jobcr.2023.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 01/10/2023] [Accepted: 03/15/2023] [Indexed: 04/05/2023] Open
Abstract
Background The most common bacteria causing periodontitis were Porphyromonas gingivalis, Fusobacterium nucleatum and Aggregatibacter actinomycetemcomitans. At present, plants are considered a valuable source of natural materials for use in the development of antimicrobial, anti-inflammatory and antioxidant agents. Hylocereus plyrhizus or red dragon fruit peel extract (RDFPE) contains terpenoids, and flavonoids can be an alternative. The gingival patch (GP) has been designed to ensure drug delivery and absorption into tissue targets. Objective To assess the effect of a mucoadhesive gingival patch containing nano-emulsion of red dragon fruit peel extract (GP-nRDFPE) in inhibiting Porphyromonas gingivalis, Fusobacterium nucleatum and Aggregatibacter actinomycetemcomitans as compared to control groups. Material and method Inhibition by diffusion method was carried out in Porphyromonas gingivalis, Fusobacterium nucleatum and Aggregatibacter actinomycetemcomitans medium. The test material was gingival patch mucoadhesive containing nano-emulsion red dragon fruit peel extract (GP-nRDFPR), gingival patch mucoadhesive containing red dragon fruit peel extract (GP-RDFPE), gingival patch mucoadhesive containing doxycycline (GP-dcx) and blank gingival patch (GP), conducted in four replications. The differences in the inhibition were analyzed using ANOVA and post hoc tests (p < 0.05). Result GP-nRDFPE showed higher inhibition in Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, and Fusobacterium nucleatum compared to GP-RDFPE at the concentrations 3.125% and 6.25% (p < 0.05). Conclusion The GP-nRDFPE showed better anti-periodontic bacteria to Porphyromonas gingivalis, Fusobacterium nucleatum, and Aggregatibacter actinomycetemcomitans in line with its concentration. This is assumed that the GP-nRDFPE can use as periodontitis treatment.
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Affiliation(s)
- Indeswati Diyatri
- Department of Oral Biology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, 60132, Indonesia
| | - Wisnu Setyari Juliastuti
- Department of Oral Biology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, 60132, Indonesia
| | - Rini Devijanti Ridwan
- Department of Oral Biology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, 60132, Indonesia
| | - Ghinalya Chalbi Ananda
- Bachelor of Dental Science, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, 60132, Indonesia
| | - Fuad Adhi Waskita
- Bachelor of Dental Science, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, 60132, Indonesia
| | - Nita Vania Juliana
- Bachelor of Dental Science, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, 60132, Indonesia
| | - Shafa Putri Khansa
- Bachelor of Dental Science, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, 60132, Indonesia
| | - Reinaya Tifa Pratiwi
- Bachelor of Dental Science, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, 60132, Indonesia
| | - Cindy Ramadhan Putri
- Dental Health Science, Faculty of Dental Medicine, Universitas Airlangga, 60132, Surabaya, Indonesia
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Choi YS, Lee JS, Lee HG. Nanoencapsulation of Grapefruit Seed Extract and Cinnamon Oil for Oral Health: Preparation, In Vitro, and Clinical Antimicrobial Activities. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:5646-5654. [PMID: 36988548 DOI: 10.1021/acs.jafc.2c05518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
This study aimed to formulate mucoadhesive antimicrobial nanoparticles using natural antimicrobials and biopolymers for oral health and verify their antimicrobial activity in clinical studies. A combination of grapefruit seed extract and cinnamon oil (GCN) and chitosan/carrageenan (CS/CR) were selected as synergistic antimicrobial combinations and mucoadhesive wall materials for nanoparticles, respectively. GCN nanoparticles (NPs; size = 357 nm and polydispersity index = 0.188) prepared by ionic gelation between CS and CR exhibited synergistic antimicrobial activity between grapefruit seed extract and cinnamon oil and significantly higher antimicrobial activity against Streptococcus mutans and sobrinus than free GCN in a time-kill assay. The clinical antibacterial activity of GCN was significantly increased and sustained by nanoencapsulation in the mouth-rinse test and GCN NP-treated drinking yogurt. These results suggest that GCN-loaded CS/CR nanoencapsulation is a promising technique that can inhibit oral bacteria with or without the presence of other food ingredients.
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Affiliation(s)
- Ye Seul Choi
- Department of Food and Nutrition, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Republic of Korea
| | - Ji-Soo Lee
- Department of Food and Nutrition, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Republic of Korea
| | - Hyeon Gyu Lee
- Department of Food and Nutrition, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Republic of Korea
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Paczkowska-Walendowska M, Szymanowska D, Cielecka-Piontek J. Mechanochemical Properties of Mucoadhesive Tablets Based on PVP/HPβCD Electrospun Nanofibers as Local Delivery of Polygoni cuspidati Extract for Treating Oral Infections. Pharmaceuticals (Basel) 2023; 16:ph16040579. [PMID: 37111336 PMCID: PMC10145533 DOI: 10.3390/ph16040579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/06/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
This study investigated the ability of PVP/HPβCD-based electrospun nanofibers to enhance the dissolution rate of poorly soluble polydatin and resveratrol, the main active components of Polygoni cuspidati extract. To make a solid unit dosage form that would be easier to administer, extract-loaded nanofibers were ground. SEM examination was used to analyze the nanostructure of the fibers, and the results of the cross-section of the tablets showed that they had maintained their fibrous structure. The release of the active compounds (polydatin and resveratrol) in the mucoadhesive tablets was complete and prolonged in time. Additionally, the possibility of staying on the mucosa for a prolonged time has also been proven for both tablets from PVP/HPβCD-based nanofibers and powder. The appropriate physicochemical properties of the tablets, along with the proven antioxidant, anti-inflammatory, and antibacterial properties of P. cuspidati extract, highlight the particular benefits of the mucoadhesive formulation for use as a drug delivery system for periodontal diseases.
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Affiliation(s)
| | - Daria Szymanowska
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, 48 Wojska Polskiego Street, 60-627 Poznan, Poland
| | - Judyta Cielecka-Piontek
- Department of Pharmacognosy, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland
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Luiz MT, di Filippo LD, Dutra JAP, Viegas JSR, Silvestre ALP, Anselmi C, Duarte JL, Calixto GMF, Chorilli M. New Technological Approaches for Dental Caries Treatment: From Liquid Crystalline Systems to Nanocarriers. Pharmaceutics 2023; 15:pharmaceutics15030762. [PMID: 36986624 PMCID: PMC10054708 DOI: 10.3390/pharmaceutics15030762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 02/16/2023] [Accepted: 02/22/2023] [Indexed: 03/02/2023] Open
Abstract
Dental caries is the most common oral disease, with high prevalence rates in adolescents and low-income and lower-middle-income countries. This disease originates from acid production by bacteria, leading to demineralization of the dental enamel and the formation of cavities. The treatment of caries remains a global challenge and the development of effective drug delivery systems is a potential strategy. In this context, different drug delivery systems have been investigated to remove oral biofilms and remineralize dental enamel. For a successful application of these systems, it is necessary that they remain adhered to the surfaces of the teeth to allow enough time for the removal of biofilms and enamel remineralization, thus, the use of mucoadhesive systems is highly encouraged. Among the systems used for this purpose, liquid crystalline systems, polymer-based nanoparticles, lipid-based nanoparticles, and inorganic nanoparticles have demonstrated great potential for preventing and treating dental caries through their own antimicrobial and remineralization properties or through delivering drugs. Therefore, the present review addresses the main drug delivery systems investigated in the treatment and prevention of dental caries.
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Affiliation(s)
- Marcela Tavares Luiz
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil
| | - Leonardo Delello di Filippo
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil
| | | | | | | | - Caroline Anselmi
- School of Dentistry, São Paulo State University (UNESP), Araraquara 14801-903, São Paulo, Brazil
| | - Jonatas Lobato Duarte
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil
| | | | - Marlus Chorilli
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil
- Correspondence: ; Tel.: +55-16-3301-6998
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Liu L, Wu D, Tu H, Cao M, Li M, Peng L, Yang J. Applications of Hydrogels in Drug Delivery for Oral and Maxillofacial Diseases. Gels 2023; 9:gels9020146. [PMID: 36826316 PMCID: PMC9956178 DOI: 10.3390/gels9020146] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/03/2023] [Accepted: 02/05/2023] [Indexed: 02/12/2023] Open
Abstract
Oral and maxillofacial diseases have an important impact on local function, facial appearance, and general health. As a multifunctional platform, hydrogels are widely used in the biomedical field due to their excellent physicochemical properties. In recent years, a large number of studies have been conducted to adapt hydrogels to the complex oral and maxillofacial environment by modulating their pore size, swelling, degradability, stimulus-response properties, etc. Meanwhile, many studies have attempted to use hydrogels as drug delivery carriers to load drugs, cytokines, and stem cells for antibacterial, anticancer, and tissue regeneration applications in oral and maxillofacial regions. This paper reviews the application and research progress of hydrogel-based drug delivery systems in the treatment of oral and maxillofacial diseases such as caries, endodontic diseases, periodontal diseases, maxillofacial bone diseases, mucosal diseases, oral cancer, etc. The characteristics and applications of hydrogels and drug-delivery systems employed for the treatment of different diseases are discussed in order to provide a reference for further research on hydrogel drug-delivery systems in the future.
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Affiliation(s)
- Lijia Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Dan Wu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Heng Tu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Mengjiao Cao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Mengxin Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Li Peng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Jing Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Correspondence:
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13
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Dinte E, Muntean DM, Andrei V, Boșca BA, Dudescu CM, Barbu-Tudoran L, Borodi G, Andrei S, Gal AF, Rus V, Gherman LM, Cadar O, Barabas R, Niculae M, Ilea A. In Vitro and In Vivo Characterisation of a Mucoadhesive Buccal Film Loaded with Doxycycline Hyclate for Topical Application in Periodontitis. Pharmaceutics 2023; 15:pharmaceutics15020580. [PMID: 36839899 PMCID: PMC9963859 DOI: 10.3390/pharmaceutics15020580] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Mucoadhesive films loaded with doxycycline hyclate (Doxy Hyc), consisting of mixtures of hydroxypropylmethyl cellulose (HPMC) E3, K4 and polyacrylic acid (Carbopol 940), were prepared by casting method, aiming to design a formulation intended for application in the oral cavity. The obtained film formulations exhibited a Doxy Hyc content between 7.52 ± 0.42 and 7.83 ± 0.41%, which had adequate mechanical properties for application in the oral cavity and pH values in the tolerance range. The x-ray diffraction studies highlighted the amorphisation of Doxy Hyc in the preparation process and the antibiotic particles present on the surface of the films, identified in the TEM images, which ensured a burst release effect in the first 15 min of the in vitro dissolution studies, after which Doxy Hyc was released by diffusion, the data presenting a good correlation with the Peppas model, n < 0.5. The formulation F1, consisting of HPMC K4 combined with C940 in a ratio of 5:3, the most performing in vitro, was tested in vivo in experimentally-induced periodontitis and demonstrated its effectiveness in improving the clinical parameters and reducing the salivary levels of matrix metalloproteinase-8 (MMP-8). The prepared Doxy Hyc loaded mucoadhesive buccal film could be used as an adjuvant for the local treatment of periodontitis, ensuring prolonged release of the antibiotic after topical application.
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Affiliation(s)
- Elena Dinte
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Dana Maria Muntean
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
- Correspondence:
| | - Vlad Andrei
- Department of Oral Rehabilitation, Faculty of Dentistry, ”Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Bianca Adina Boșca
- Department of Morphological Sciences, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Cristian Mircea Dudescu
- Department of Mechanical Engineering, Faculty of Automotive, Mechatronics and Mechanical Engineering, Technical University of Cluj-Napoca, 400641 Cluj-Napoca, Romania
| | - Lucian Barbu-Tudoran
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, 400084 Cluj-Napoca, Romania
| | - Gheorghe Borodi
- National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania
| | - Sanda Andrei
- Department of Biochemistry, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Adrian Florin Gal
- Department of Cell Biology, Histology and Embryology, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Vasile Rus
- Department of Cell Biology, Histology and Embryology, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Luciana-Mădălina Gherman
- Experimental Centre of University of Medicine and Pharmacy “Iuliu Hațieganu”, 400349 Cluj-Napoca, Romania
| | - Oana Cadar
- INCDO-INOE 2000, Research Institute for Analytical Instrumentation, 400293 Cluj-Napoca, Romania
| | - Reka Barabas
- Department of Chemistry and Chemical Engineering of Hungarian Line of Study, Faculty of Chemistry and Chemical Engineering, 400028 Cluj-Napoca, Romania
| | - Mihaela Niculae
- Department of Infectious Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Aranka Ilea
- Department of Oral Rehabilitation, Faculty of Dentistry, ”Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
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Husain S, Nandi A, Simnani FZ, Saha U, Ghosh A, Sinha A, Sahay A, Samal SK, Panda PK, Verma SK. Emerging Trends in Advanced Translational Applications of Silver Nanoparticles: A Progressing Dawn of Nanotechnology. J Funct Biomater 2023; 14:jfb14010047. [PMID: 36662094 PMCID: PMC9863943 DOI: 10.3390/jfb14010047] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/07/2023] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
Nanoscience has emerged as a fascinating field of science, with its implementation in multiple applications in the form of nanotechnology. Nanotechnology has recently been more impactful in diverse sectors such as the pharmaceutical industry, agriculture sector, and food market. The peculiar properties which make nanoparticles as an asset are their large surface area and their size, which ranges between 1 and 100 nanometers (nm). Various technologies, such as chemical and biological processes, are being used to synthesize nanoparticles. The green chemistry route has become extremely popular due to its use in the synthesis of nanoparticles. Nanomaterials are versatile and impactful in different day to day applications, resulting in their increased utilization and distribution in human cells, tissues, and organs. Owing to the deployment of nanoparticles at a high demand, the need to produce nanoparticles has raised concerns regarding environmentally friendly processes. These processes are meant to produce nanomaterials with improved physiochemical properties that can have significant uses in the fields of medicine, physics, and biochemistry. Among a plethora of nanomaterials, silver nanoparticles have emerged as the most investigated and used nanoparticle. Silver nanoparticles (AgNPs) have become vital entities of study due to their distinctive properties which the scientific society aims to investigate the uses of. The current review addresses the modern expansion of AgNP synthesis, characterization, and mechanism, as well as global applications of AgNPs and their limitations.
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Affiliation(s)
- Shaheen Husain
- Amity Institute of Nanotechnology, Amity University Uttar Pradesh (AUUP), Sector 125, Noida 201313, India
- Correspondence: (S.H.); (S.K.V.)
| | - Aditya Nandi
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
| | | | - Utsa Saha
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
| | - Aishee Ghosh
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
| | - Adrija Sinha
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
| | - Aarya Sahay
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
| | - Shailesh Kumar Samal
- Unit of Immunology and Chronic Disease, Institute of Environmental Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Pritam Kumar Panda
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, 75120 Uppsala, Sweden
| | - Suresh K. Verma
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, 75120 Uppsala, Sweden
- Correspondence: (S.H.); (S.K.V.)
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Mehravaran M, Haeri A, Rabbani S, Mortazavi SA, Torshabi M. Preparation and characterization of benzydamine hydrochloride-loaded lyophilized mucoadhesive wafers for the treatment of oral mucositis. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Singh J, Steele TWJ, Lim S. Bacterial cellulose adhesive patches designed for soft mucosal interfaces. BIOMATERIALS ADVANCES 2022; 144:213174. [PMID: 36428212 DOI: 10.1016/j.bioadv.2022.213174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/12/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
The wet environment in the oral cavity is challenging for topical disease management approaches. The compromised material properties leading to weak adhesion and short retention (<8 h) in such environment result in frequent reapplication of the therapeutics. Composites of bacterial cellulose (BC) and carbene-based bioadhesives attempt to address these shortcomings. Previous designs comprised of aqueous formulations. The current design, for the first time, presents dry, shelf-stable cellulose patches for convenient ready-to-use application. The dry patches simultaneously remove tissue surface hydration while retaining carbene-based photocuring and offers on-demand adhesion. The dry patch prototypes are optimized by controlling BC/adhesive mole ratios and dehydration technique. The adhesion strength is higher than commercial denture adhesives on soft mucosal tissues. The structural integrity is maintained for a minimum of 7 days in aqueous environment. The patches act as selective nanoporous barrier against bacteria while allowing permeation of proteins. The results support the application of BC-based adhesive patches as a flexible platform for wound dressings, drug depots, or combination thereof.
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Affiliation(s)
- Juhi Singh
- NTU Institute for Health Technologies, Interdisciplinary Graduate Program, Nanyang Technological University, 61 Nanyang Drive, Singapore 637335, Singapore; School of Chemical and Biomedical Engineering, 70 Nanyang Drive, Block N1.3, Nanyang Technological University, Singapore 637457, Singapore.
| | - Terry W J Steele
- School of Materials Science and Engineering (MSE), Division of Materials Technology, Nanyang Technological University (NTU), Singapore 639798, Singapore.
| | - Sierin Lim
- School of Chemical and Biomedical Engineering, 70 Nanyang Drive, Block N1.3, Nanyang Technological University, Singapore 637457, Singapore.
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17
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Nanofibrous chitosan/polyethylene oxide silver/hydroxyapatite/silica composite as a potential biomaterial for local treatment of periodontal disease. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04466-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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18
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Administration strategies and smart devices for drug release in specific sites of the upper GI tract. J Control Release 2022; 348:537-552. [PMID: 35690278 DOI: 10.1016/j.jconrel.2022.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/01/2022] [Accepted: 06/04/2022] [Indexed: 10/18/2022]
Abstract
Targeting the release of drugs in specific sites of the upper GI tract would meet local therapeutic goals, improve the bioavailability of specific drugs and help overcoming compliance-related limitations, especially in chronic illnesses of great social/economic impact and involving polytherapies (e.g. Parkinson's and Alzeimer's disease, tubercolosis, malaria, HIV, HCV). It has been traditionally pursued using gastroretentive (GR) systems, i.e. low-density, high-density, magnetic, adhesive and expandable devices. More recently, the interest towards oral administration of biologics has prompted the development of novel drug delivery systems (DDSs) provided with needles and able to inject different formulations in the mucosa of the upper GI tract and particularly of esophagus, stomach or small intestine. Besides comprehensive literature analysis, DDSs identified as smart devices in view of their high degree of complexity in terms of design, working mechanism, materials employed and manufacturing steps were discussed making use of graphic tools.
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Pandey M, Choudhury H, Ying JNS, Ling JFS, Ting J, Ting JSS, Zhia Hwen IK, Suen HW, Samsul Kamar HS, Gorain B, Jain N, Mohd Amin MCI. Mucoadhesive Nanocarriers as a Promising Strategy to Enhance Intracellular Delivery against Oral Cavity Carcinoma. Pharmaceutics 2022; 14:pharmaceutics14040795. [PMID: 35456629 PMCID: PMC9025168 DOI: 10.3390/pharmaceutics14040795] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 02/04/2023] Open
Abstract
Oral cancer, particularly squamous cell carcinoma (SCC), has posed a grave challenge to global health due to its high incidence, metastasis, and mortality rates. Despite numerous studies and favorable improvements in the therapeutic strategies over the past few decades, the prognosis of this disease remains dismal. Moreover, several drawbacks are associated with the conventional treatment; including permanent disfigurement and physical impairment that are attributed to surgical intervention, and systemic toxicity that results from aggressive radio- or chemotherapies, which impacts patients’ prognosis and post-treatment quality of life. The highly vascularized, non-keratinized oral mucosa appears as a potential route for cytotoxic drug administration in treating oral cancer. It acts as a non-invasive portal for drug entry targeting the local oral lesions of the early stages of cancer and the systemic metastasis sites of advanced cancer. The absorption of the poorly aqueous-soluble anti-cancer drugs can be enhanced due to the increased permeability of the ulcerous mucosa lining in the disease state and by bypassing the hepatic first-pass metabolism. However, some challenges in oral transmucosal drug delivery include the drugs’ taste, the limited surface area of the membrane lining the oral cavity, and flushing and enzymatic degradation by saliva. Therefore, mucoadhesive nanocarriers have emerged as promising platforms for controlled, targeted drug delivery in the oral cavity. The surface functionalization of nanocarriers with various moieties allows for drug targeting, bioavailability enhancement, and biodistribution at the site of action, while the mucoadhesive feature prolongs the drug’s residence time for preferential accumulation to optimize the therapeutic effect and reduce systemic toxicity. This review has been focused to highlight the potential of various nanocarriers (e.g., nanoparticles, nanoemulsions, nanocapsules, and liposomes) in conferring targeting, solubility and bioavailability enhancement of actives and mucoadhesive properties as novel tumor-targeted drug delivery approaches in oral cancer treatment.
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Affiliation(s)
- Manisha Pandey
- Department of Pharmaceutical Technology, School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia
- Correspondence: (M.P.); (H.C.); Tel.: +60-166-048-589 (M.P.)
| | - Hira Choudhury
- Department of Pharmaceutical Technology, School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia
- Correspondence: (M.P.); (H.C.); Tel.: +60-166-048-589 (M.P.)
| | - Jenifer Ngu Shao Ying
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia; (J.N.S.Y.); (J.F.S.L.); (J.T.); (J.S.S.T.); (I.K.Z.H.); (H.W.S.); (H.S.S.K.)
| | - Jessica Foo Sze Ling
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia; (J.N.S.Y.); (J.F.S.L.); (J.T.); (J.S.S.T.); (I.K.Z.H.); (H.W.S.); (H.S.S.K.)
| | - Jong Ting
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia; (J.N.S.Y.); (J.F.S.L.); (J.T.); (J.S.S.T.); (I.K.Z.H.); (H.W.S.); (H.S.S.K.)
| | - Jocelyn Su Szhiou Ting
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia; (J.N.S.Y.); (J.F.S.L.); (J.T.); (J.S.S.T.); (I.K.Z.H.); (H.W.S.); (H.S.S.K.)
| | - Ivory Kuek Zhia Hwen
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia; (J.N.S.Y.); (J.F.S.L.); (J.T.); (J.S.S.T.); (I.K.Z.H.); (H.W.S.); (H.S.S.K.)
| | - Ho Wan Suen
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia; (J.N.S.Y.); (J.F.S.L.); (J.T.); (J.S.S.T.); (I.K.Z.H.); (H.W.S.); (H.S.S.K.)
| | - Hazimah Syazwani Samsul Kamar
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia; (J.N.S.Y.); (J.F.S.L.); (J.T.); (J.S.S.T.); (I.K.Z.H.); (H.W.S.); (H.S.S.K.)
| | - Bapi Gorain
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi 835215, India;
| | - Neha Jain
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Noida 201303, India;
| | - Mohd Cairul Iqbal Mohd Amin
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia;
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20
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Probiotics-Containing Mucoadhesive Gel for Targeting the Dysbiosis Associated with Periodontal Diseases. Int J Dent 2022; 2022:5007930. [PMID: 35265133 PMCID: PMC8898886 DOI: 10.1155/2022/5007930] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 01/18/2022] [Accepted: 01/28/2022] [Indexed: 02/07/2023] Open
Abstract
Objective Periodontitis is a common disorder that leads to the loss of both tooth and personal well-being, contributing to worsen the risk for metabolic and cardiovascular diseases. Recently, probiotics, characterized by rapid oral dispersion, have been topically used. Here, we present data of a mucoadhesive gel containing probiotics, capable of ensuring a slow release of bacteria to prevent and treat periodontitis. Methods An original mucoadhesive gel (AL0005) that is anhydrous and of food grade, loaded with the blend of lactobacilli and plants' dry extracts, has been assayed. Results The release kinetics of the bacterial mixture in different experimental models in vitro, including simulated saliva or physiological solutions, showed a significant and stable release for 5–8 hours. In one in vivo study of a mouse model of periodontitis, a locally applied mucoadhesive gel enriched with probiotic strains improved significantly the tissue pathology when compared with vehicle-exposed mice. Conclusions Together, the results suggest that this mucoadhesive gel can be useful in the normalization of the gum bacterial flora and improvement of the tissue pathology of gum disorders.
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Singh J, Steele TWJ, Lim S. Fibrillated bacterial cellulose liquid carbene bioadhesives for mimicking and bonding oral cavity surfaces. J Mater Chem B 2022; 10:2570-2583. [PMID: 34981107 DOI: 10.1039/d1tb02044g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Topical treatments for oral wounds and infections exhibit weak adhesion to wet surfaces which results in short retention duration (6-8 hours), frequent dosing requirement and patient incompatibility. To address these limitations, aqueous composites made of fibrillated bacterial cellulose and photoactive bioadhesives are designed for soft epithelial surfaces. The aqueous composites crosslink upon photocuring within a minute and exhibit a transition from viscous to elastic adhesive hydrogels. The light-cured composites have shear moduli mimicking oral mucosa and other soft tissues. The tunable adhesion strength ranges from 3 to 35 kPa on hydrated tissue-mimicking surfaces (collagen film). The results support the application of bacterial cellulose hydrogel systems for potential treatment of mucosal wounds.
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Affiliation(s)
- Juhi Singh
- NTU Institute for Health Technologies, Interdisciplinary Graduate Program, Nanyang Technological University, 61 Nanyang Drive, 637335, Singapore. .,School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Block N1.3, 637457, Singapore.
| | - Terry W J Steele
- School of Materials Science and Engineering (MSE), Division of Materials Technology, Nanyang Technological University (NTU), 639798, Singapore.
| | - Sierin Lim
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Block N1.3, 637457, Singapore.
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22
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Biocompatible and Biomaterials Application in Drug Delivery System in Oral Cavity. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:9011226. [PMID: 34812267 PMCID: PMC8605911 DOI: 10.1155/2021/9011226] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 10/27/2021] [Indexed: 02/03/2023]
Abstract
Biomaterials applications have rapidly expanded into different fields of sciences. One of the important fields of using biomaterials is dentistry, which can facilitate implantation, surgery, and treatment of oral diseases such as peri-implantitis, periodontitis, and other dental problems. Drug delivery systems based on biocompatible materials play a vital role in the release of drugs into aim tissues of the oral cavity with minimum side effects. Therefore, scientists have studied various delivery systems to improve the efficacy and acceptability of therapeutic approaches in dental problems and oral diseases. Also, biomaterials could be utilized as carriers in biocompatible drug delivery systems. For instance, natural polymeric substances, such as gelatin, chitosan, calcium phosphate, alginate, and xanthan gum are used to prepare different forms of delivery systems. In addition, some alloys are conducted in drug complexes for the better in transportation. Delivery systems based on biomaterials are provided with different strategies, although individual biomaterial has advantages and disadvantages which have a significant influence on transportation of complex such as solubility in physiological environments or distribution in tissues. Biomaterials have antibacterial and anti-inflammatory effects and prolonged time contact and even enhance antibiotic activities in oral infections. Moreover, these biomaterials are commonly prepared in some forms such as particulate complex, fibers, microspheres, gels, hydrogels, and injectable systems. In this review, we examined the application of biocompatible materials in drug delivery systems of oral and dental diseases or problems.
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Singh J, Tan NCS, Mahadevaswamy UR, Chanchareonsook N, Steele TWJ, Lim S. Bacterial cellulose adhesive composites for oral cavity applications. Carbohydr Polym 2021; 274:118403. [PMID: 34702445 DOI: 10.1016/j.carbpol.2021.118403] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/22/2021] [Accepted: 07/04/2021] [Indexed: 11/19/2022]
Abstract
Topical approaches to oral diseases require frequent dosing due to limited retention time. A mucoadhesive drug delivery platform with extended soft tissue adhesion capability of up to 7 days is proposed for on-site management of oral wound. Bacterial cellulose (BC) and photoactivated carbene-based bioadhesives (PDz) are combined to yield flexible film platform for interfacing soft tissues in dynamic, wet environments. Structure-activity relationships evaluate UV dose and hydration state with respect to adhesive strength on soft tissue mimics. The bioadhesive composite has an adhesion strength ranging from 7 to 17 kPa and duration exceeding 48 h in wet conditions under sustained shear forces, while other mucoadhesives based on hydrophilic macromolecules exhibit adhesion strength of 0.5-5 kPa and last only a few hours. The work highlights the first evaluation of BC composites for mucoadhesive treatments in the buccal cavity.
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Affiliation(s)
- Juhi Singh
- NTU Institute for Health Technologies, Interdisciplinary Graduate Program, Nanyang Technological University, 61 Nanyang Drive, Singapore 637335, Singapore; School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Block N1.3, Singapore 637457, Singapore.
| | - Nigel C S Tan
- School of Materials Science and Engineering, Division of Materials Technology, Nanyang Technological University, 50 Nanyang Avenue, Block N4.1, Singapore 639798, Singapore.
| | - Usha Rani Mahadevaswamy
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Block N1.3, Singapore 637457, Singapore.
| | - Nattharee Chanchareonsook
- Department of Oral and Maxillofacial Surgery, National Dental Centre Singapore (NDCS), 5 Second Hospital Avenue, Singapore 16893, Singapore
| | - Terry W J Steele
- School of Materials Science and Engineering, Division of Materials Technology, Nanyang Technological University, 50 Nanyang Avenue, Block N4.1, Singapore 639798, Singapore.
| | - Sierin Lim
- NTU Institute for Health Technologies, Interdisciplinary Graduate Program, Nanyang Technological University, 61 Nanyang Drive, Singapore 637335, Singapore; School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Block N1.3, Singapore 637457, Singapore.
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Suharyani I, Fouad Abdelwahab Mohammed A, Muchtaridi M, Wathoni N, Abdassah M. Evolution of Drug Delivery Systems for Recurrent Aphthous Stomatitis. Drug Des Devel Ther 2021; 15:4071-4089. [PMID: 34616142 PMCID: PMC8489189 DOI: 10.2147/dddt.s328371] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 09/08/2021] [Indexed: 01/23/2023] Open
Abstract
Recurrent aphthous stomatitis (RAS) is a disease marked by painful oral lesions on the buccal and labial mucosa or tongue. Drug delivery systems (DDS) for RAS include topical forms that manage wound healing, cover the ulcer, and relieve the associated pain. DDS targeting the oral mucosa face a major challenge, especially the short residence times in the mouth due to the effect of “saliva wash-out”, which continually removes the drug. The objective of this review is to study the development of preparation forms and delivery systems of various types and preparations that have been used for RAS management from 1965 until February 2020. There are 20 types of DDS for RAS which were discussed in 62 articles. The preparations were classified into 4 preparation forms: liquid, semi-solid, solid, and miscellaneous. In addition, the ultimate DDS for RAS preparations is the semi-solid forms (41.94%), which include 5 types of DDS are gel, paste, patch, cream, and ointment. This preparation was developed into new preparation form (11.29%), such as adhesive alginates, dentifrice, OraDisc, membranes, bioresorbable plates, pellicles, and gelosomes. Generally, the mucosal drug delivery system is the method of choice in RAS treatment because the ulcer is commonly located in the oral mucosa. In conclusion, these preparations are designed to improve drug delivery and drug activity for the treatment of RAS ulcers. Moreover, almost all of these DDS are topical preparations that use various types of mucoadhesive polymers to increase both residence time in the oral mucosa and pain relief in RAS treatment.
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Affiliation(s)
- Ine Suharyani
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Padjadjaran University, Sumedang, Jatinangor, 45363, Indonesia.,School of Pharmacy Muhammadiyah Cirebon, Cirebon, Kedawung, 45153, Indonesia
| | | | - Muchtaridi Muchtaridi
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, Jatinangor, 45363, Indonesia
| | - Nasrul Wathoni
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Padjadjaran University, Sumedang, Jatinangor, 45363, Indonesia
| | - Marline Abdassah
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Padjadjaran University, Sumedang, Jatinangor, 45363, Indonesia
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Parhizkar A, Asgary S. Local Drug Delivery Systems for Vital Pulp Therapy: A New Hope. Int J Biomater 2021; 2021:5584268. [PMID: 34567123 PMCID: PMC8457968 DOI: 10.1155/2021/5584268] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 08/18/2021] [Accepted: 09/09/2021] [Indexed: 12/24/2022] Open
Abstract
Vital pulp therapy (VPT) is deliberated as an ultraconservative/minimally invasive approach for the conservation of vital pulpal tissues, preservation of dental structure, and maintenance of tooth function in the oral cavity. In VPT, following the exposure of the dental pulp, the environment is prepared for the possible healing and probable refunctionalisation of pulpal connective tissue. However, to succeed in VPT, specific biomaterials are used to cover and/or dress the exposed pulp, lower the inflammation, heal the dental pulp, provoke the remaining odontoblastic cells, and induce the formation of a hard tissue, i.e., the dentinal bridge. It can be assumed that if the employed biomaterial is transferred to the target site using a specially designed micro-/nanosized local drug delivery system (LDDS), the biomaterial would be placed in closer proximity to the connective tissue, may be released in a controlled and sustained pattern, could properly conserve the remaining dental pulp and might appropriately enhance hard-tissue formation. Furthermore, the loaded LDDS could help VPT modalities to be more ultraconservative and may minimise the manipulation of the tooth structure as well as pulpal tissue, which could, in turn, result in better VPT outcomes.
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Affiliation(s)
- Ardavan Parhizkar
- Iranian Centre for Endodontic Research, Research Institute for Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran 1983963113, Iran
| | - Saeed Asgary
- Iranian Centre for Endodontic Research, Research Institute for Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran 1983963113, Iran
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Liu S, Wang YN, Ma B, Shao J, Liu H, Ge S. Gingipain-Responsive Thermosensitive Hydrogel Loaded with SDF-1 Facilitates In Situ Periodontal Tissue Regeneration. ACS APPLIED MATERIALS & INTERFACES 2021; 13:36880-36893. [PMID: 34324286 DOI: 10.1021/acsami.1c08855] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Existing local drug delivery systems for periodontitis suffer from poor antibacterial effect and unsatisfied periodontal regeneration. In this study, a smart gingipain-responsive hydrogel (PEGPD@SDF-1) was synthesized as an environmentally sensitive carrier for on-demand drug delivery. The PEGPD@SDF-1 hydrogel was synthesized from polyethylene glycol diacrylate (PEG-DA) based scaffolds, dithiothreitol (DTT), and a novel designed functional peptide module (FPM) via Michael-type addition reaction, and the hydrogel was further loaded with stromal cell derived factor-1 (SDF-1). The FPM exhibiting a structure of anchor peptide-short antimicrobial peptide (SAMP)-anchor peptide could be cleaved by gingipain specifically, and the SAMP was released out of the hydrogel for antibacterial effect in response to gingipain. The hydrogel properties were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), swelling ratio analysis, degradation evaluation, and release curve description of the SAMP and SDF-1. Results in vitro indicated the PEGPD@SDF-1 hydrogel exhibited preferable biocompatibility and could promote the proliferation, migration, and osteogenic differentiation of periodontal ligament stem cells (PDLSCs). Antibacterial testing demonstrated that the PEGPD@SDF-1 hydrogel released the SAMP stressfully in response to gingipain stimulation, thereby strongly inhibiting the growth of Porphyromonas gingivalis. Furthermore, the study in vivo indicated that the PEGPD@SDF-1 hydrogel inhibited P. gingivalis reproduction, created a low-inflammatory environment, facilitated the recruitment of CD90+/CD34- stromal cells, and induced osteogenesis. Taken together, these results suggest that the gingipain-responsive PEGPD@SDF-1 hydrogel could facilitate in situ periodontal tissue regeneration and is a promising candidate for the on-demand local drug delivery system for periodontitis.
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Affiliation(s)
- Shiyue Liu
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China
| | - Ya-Nan Wang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China
| | - Baojin Ma
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China
| | - Jinlong Shao
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China
| | - Hongrui Liu
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China
| | - Shaohua Ge
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China
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How YH, Yeo SK. Oral probiotic and its delivery carriers to improve oral health: A review. MICROBIOLOGY-SGM 2021; 167. [PMID: 34351255 DOI: 10.1099/mic.0.001076] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In recent years, oral probiotics have been researched on their effectiveness in reducing and preventing oral diseases. Oral probiotics could be introduced into the oral cavity to keep the equilibrium of the microbiome. Hence, the delivery carrier for oral probiotics plays an important factor to ensure a high number of oral probiotics were delivered and released into the oral cavity. This review presents a brief overview of oral microbiota and the role of oral probiotics in reducing oral diseases. Moreover, important aspects of the oral probiotic product such as viability, adherence ability, health effects, safety, and delivery site were discussed. Besides that, the importance of utilizing indigenous oral probiotics was also emphasized. Oral probiotics are commonly found in the market in the form of chewing tablets, lozenges, and capsules. Hence, the oral probiotic carriers currently used in the market and research were reviewed. Furthermore, this review introduces new potential oral probiotic delivery carriers such as oral strip, bucco-adhesive gel, and mouthwash. Their effectiveness in delivering oral probiotics for oral health was also explored.
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Affiliation(s)
- Yu-Hsuan How
- UCSI University, Department of Food Science with Nutrition, Faculty of Applied Sciences, 1, UCSI Heights, Jalan Puncak Menara Gading, Taman Connaught, 56000 Cheras, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Siok-Koon Yeo
- Taylor's University, School of Biosciences, 1, Jalan Taylor's, 47500 Subang Jaya, Selangor, Malaysia
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Ghanim M, Relitti N, McManus G, Butini S, Cappelli A, Campiani G, Mok KH, Kelly VP. A non-toxic, reversibly released imaging probe for oral cancer that is derived from natural compounds. Sci Rep 2021; 11:14069. [PMID: 34234213 PMCID: PMC8263592 DOI: 10.1038/s41598-021-93408-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 06/24/2021] [Indexed: 02/06/2023] Open
Abstract
CD44 is emerging as an important receptor biomarker for various cancers. Amongst these is oral cancer, where surgical resection remains an essential mode of treatment. Unfortunately, surgery is frequently associated with permanent disfigurement, malnutrition, and functional comorbidities due to the difficultly of tumour removal. Optical imaging agents that can guide tumour tissue identification represent an attractive approach to minimising the impact of surgery. Here, we report the synthesis of a water-soluble fluorescent probe, namely HA-FA-HEG-OE (compound 1), that comprises components originating from natural sources: oleic acid, ferulic acid and hyaluronic acid. Compound 1 was found to be non-toxic, displayed aggregation induced emission and accumulated intracellularly in vesicles in SCC-9 oral squamous cells. The uptake of 1 was fully reversible over time. Internalization of compound 1 occurs through receptor mediated endocytosis; uniquely mediated through the CD44 receptor. Uptake is related to tumorigenic potential, with non-tumorigenic, dysplastic DOK cells and poorly tumorigenic MCF-7 cells showing only low intracellular levels and highlighting the critical role of endocytosis in cancer progression and metastasis. Together, the recognised importance of CD44 as a cancer stem cell marker in oral cancer, and the reversible, non-toxic nature of 1, makes it a promising agent for real time intraoperative imaging.
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Affiliation(s)
- Magda Ghanim
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Nicola Relitti
- Department of Biotechnology, Chemistry and Pharmacy, Department of Excellence 2018-2022, University of Siena, 53100, Siena, Italy
| | - Gavin McManus
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Stefania Butini
- Department of Biotechnology, Chemistry and Pharmacy, Department of Excellence 2018-2022, University of Siena, 53100, Siena, Italy.
| | - Andrea Cappelli
- Department of Biotechnology, Chemistry and Pharmacy, Department of Excellence 2018-2022, University of Siena, 53100, Siena, Italy
| | - Giuseppe Campiani
- Department of Biotechnology, Chemistry and Pharmacy, Department of Excellence 2018-2022, University of Siena, 53100, Siena, Italy
| | - K H Mok
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Vincent P Kelly
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.
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29
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de Lavôr JR, Fernandes NLS, de Sousa EBG, da Cunha JL, Meira IA, Correia Sampaio F, de Oliveira AFB. Nanoencapsulated fluoride as a remineralization option for dental erosion: an in vitro study. Acta Odontol Scand 2021; 79:321-326. [PMID: 33245686 DOI: 10.1080/00016357.2020.1849793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To compare the in vitro performance of different dentifrices indicated for dental erosion and a new dentifrice with controlled fluoride release system (NanoF) in terms of surface microhardness remineralization in enamel erosion lesions. MATERIALS AND METHODS 72 human enamel specimens were divided into 6 groups (n = 12): PC (100% NaF - positive control); NC (Placebo - negative control); 50%nF (50% NanoF + 50% free NaF), 100%nF (100% NanoF); PN (Sensodyne® ProNamel™) and AG (Colgate® Sensitive Pro-Relief™). A surface microhardness analysis was performed before (SH0) and after (SH1) the erosion lesion formation. The blocks were submitted to a 5-day de-remineralization cycling model, consisting of 90 s immersion on 0.1% citric acid (4x/day) and 1 min treatment with dentifrice slurries along with 1 mL/block of human saliva (2x/day). Lastly, the final surface microhardness analysis (SH2) was measured and the percentage of surface microhardness remineralization (%SMHR) was calculated. Data were analysed with 2-way ANOVA and Tukey's test (p < .05). RESULTS Statistically significant differences were observed for SH2 and %SMHR between NC and AG with the other groups (p < .05). The best %SMHR from the experimental groups was found in 100%nF and PN. CONCLUSION Dentifrices with NanoF exhibited a surface microhardness remineralization similar to sodium fluoride (PC). Therefore, NanoF dentifrice can be an alternative to prevent and treat patients with dental erosion.
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Affiliation(s)
| | | | | | | | - Ingrid Andrade Meira
- Graduate Program of Dentistry Clinic, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
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Santezi C, Reina BD, de Annunzio SR, Calixto G, Chorilli M, Dovigo LN. Photodynamic potential of curcumin in bioadhesive formulations: Optical characteristics and antimicrobial effect against biofilms. Photodiagnosis Photodyn Ther 2021; 35:102416. [PMID: 34197966 DOI: 10.1016/j.pdpdt.2021.102416] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/01/2021] [Accepted: 06/22/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Although Curcumin (CUR) has great potential as a photosensitizer, the low solubility in water impairs its clinical performance in photodynamic inactivation (PDI). This study sought to establish an effective antimicrobial protocol for PDI using CUR in three different bioadhesive formulations. METHODS A CUR-loaded chitosan hydrogel with a poloxamer (CUR-CHIH), a CUR-loaded liquid crystal precursor system (CUR-LCP), a CUR-loaded microemulsion (CUR-ME), and CUR in dimethylsulfoxide (DMSO) solution (CUR-S; control formulation) were tested against in vitro and in situ oral biofilms. The optical properties of each formulation were evaluated. RESULTS All of the formulations exhibited lower absorbance than CUR-S; however, the CUR-LCP curve bore the highest resemblance. The CUR present in all formulations was completely degraded after 15 min of illumination. In vitro experiments showed that CUR-S was the only formulation able to significantly reduce biofilm viability of Candida albicans and Lactobacillus casei when compared to the negative control (no PDI); the amount of reduction obtained was 1.8 and 3.7 log (CFU/mL) for C. albicans and L. casei, respectively. There was a significant reduction on the viability of Streptococcus mutans biofilms when CUR-S and CUR-LCP were applied (approximately 3.5 and 1.6 log [CFU/mL], respectively). In situ testing showed antimicrobial efficacy against S. mutans and general microorganisms. CONCLUSIONS Although the evaluated protocols has not been effective to all of the evaluated microorganisms, PDI showed potential against dental biofilms and evidence that the phototoxic effects of CUR have a high relation with the type of formulation in which it is loaded.
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Affiliation(s)
- Carolina Santezi
- Independent researcher at the moment of the submission (unaffiliated researcher)
| | - Bárbara Donadon Reina
- Department of Social Dentistry, School of Dentistry, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil
| | - Sarah Raquel de Annunzio
- Department of Clinical Analysis, School of Pharmacy, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil
| | - Giovana Calixto
- Department of Biosciences, Piracicaba Dental School, UNICAMP, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Marlus Chorilli
- Department of Drugs and Pharmaceutics, School of Pharmacy, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil
| | - Lívia Nordi Dovigo
- Department of Social Dentistry, School of Dentistry, UNESP - São Paulo State University, Araraquara, São Paulo, Brazil.
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Gao X, Wu L, Tsai RYL, Ma J, Liu X, Chow DSL, Liang D, Xie H. Pharmacokinetic Model Analysis of Supralingual, Oral and Intravenous Deliveries of Mycophenolic Acid. Pharmaceutics 2021; 13:pharmaceutics13040574. [PMID: 33920640 PMCID: PMC8072905 DOI: 10.3390/pharmaceutics13040574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/13/2021] [Accepted: 04/14/2021] [Indexed: 01/20/2023] Open
Abstract
Mycophenolic acid (MPA) is commonly used for organ rejection prophylaxis via oral administration in the clinic. Recent studies have shown that MPA also has anticancer activities. To explore new therapeutic options for oral precancerous/cancerous lesions, MPA was designed to release topically on the dorsal tongue surface via a mucoadhesive patch. The objective of this study was to establish the pharmacokinetic (PK) and tongue tissue distribution of mucoadhesive MPA patch formulation after supralingual administration in rats and also compare the PK differences between oral, intravenous, and supralingual administration of MPA. Blood samples were collected from Sprague Dawley rats before and after a single intravenous bolus injection, a single oral dose, or a mucoadhesive patch administration on the dorsal tongue surface for 4 h, all with a dose of 0.5 mg/kg of MPA. Plots of MPA plasma concentration versus time were obtained. As multiple peaks were found in all three curves, the enterohepatic recycling (EHR) model in the Phoenix software was adapted to describe their PK parameters with an individual PK analysis method. The mean half-lives of intravenous and oral administrations were 10.5 h and 7.4 h, respectively. The estimated bioavailability after oral and supralingual administration was 72.4% and 7.6%, respectively. There was a 0.5 h lag-time presented after supralingual administration. The results suggest that the systemic plasma MPA concentrations were much lower in rats receiving supralingual administration compared to those receiving doses from the other two routes, and the amount of MPA accumulated in the tongue after patch application showed a sustained drug release pattern. Studies on the dynamic of drug retention in the tongue after supralingual administration showed that ~3.8% of the dose was accumulated inside of tongue right after the patch removal, ~0.11% of the dose remained after 20 h, and ~20.6% of MPA was not released from the patches 4 h after application. The data demonstrate that supralingual application of an MPA patch can deliver a high amount of drug at the site of administration with little systemic circulation exposure, hence lowering the potential gastrointestinal side effects associated with oral administration. Thus, supralingual administration is a potential alternative route for treating oral lesions.
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Affiliation(s)
- Xiuqing Gao
- Department of Pharmaceutical Science, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX 77004, USA; (X.G.); (J.M.); (D.L.)
| | - Lei Wu
- Department of Pharmcological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204, USA; (L.W.); (D.S.-L.C.)
| | - Robert Y. L. Tsai
- Department of Translational Medical Sciences, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX 77030, USA;
| | - Jing Ma
- Department of Pharmaceutical Science, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX 77004, USA; (X.G.); (J.M.); (D.L.)
| | - Xiaohua Liu
- Department of Biomedical Sciences, Baylor College of Dentistry, Dallas, TX 75246, USA;
| | - Diana S.-L. Chow
- Department of Pharmcological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204, USA; (L.W.); (D.S.-L.C.)
| | - Dong Liang
- Department of Pharmaceutical Science, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX 77004, USA; (X.G.); (J.M.); (D.L.)
| | - Huan Xie
- Department of Pharmaceutical Science, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX 77004, USA; (X.G.); (J.M.); (D.L.)
- Correspondence: ; Tel.: +1-713-775-6235
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Current status and future of delivery systems for prevention and treatment of infections in the oral cavity. Drug Deliv Transl Res 2021; 11:1703-1734. [PMID: 33770415 PMCID: PMC7995675 DOI: 10.1007/s13346-021-00961-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2021] [Indexed: 12/23/2022]
Abstract
Oral health reflects the general health, and it is fundamental to well-being and quality of life. An infection in the oral cavity can be associated with serious complications in human health. Local therapy of these infections offers many advantages over systemic drug administration, targeting directly to the diseased area while minimizing systemic side effects. Specialized drug delivery systems into the oral cavity have to be designed in such a fashion that they resist to the aqueous environment that is constantly bathed in saliva and subject to mechanical forces. Additionally, a prolonged release of drug should also be provided, which would enhance the efficacy and also decrease the repeated dosing. This review is aimed to summarize the current most relevant findings related to local drug delivery of various drug groups for prevention and treatment of infections (viral, bacterial, fungal) and infection-related manifestations in the oral cavity. Current therapeutic challenges in regard to effective local drug delivery systems will be discussed, and the recent approaches to overcome these obstacles will be reviewed. Finally, future prospects will be overviewed to promote novel strategies that can be implemented in clinical management for prevention and treatment of oral infections.
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Vasiliu S, Racovita S, Gugoasa IA, Lungan MA, Popa M, Desbrieres J. The Benefits of Smart Nanoparticles in Dental Applications. Int J Mol Sci 2021; 22:2585. [PMID: 33806682 PMCID: PMC7961614 DOI: 10.3390/ijms22052585] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 02/28/2021] [Accepted: 03/01/2021] [Indexed: 12/18/2022] Open
Abstract
Dentistry, as a branch of medicine, has undergone continuous evolution over time. The scientific world has focused its attention on the development of new methods and materials with improved properties that meet the needs of patients. For this purpose, the replacement of so-called "passive" dental materials that do not interact with the oral environment with "smart/intelligent" materials that have the capability to change their shape, color, or size in response to an externally stimulus, such as the temperature, pH, light, moisture, stress, electric or magnetic fields, and chemical compounds, has received much attention in recent years. A strong trend in dental applications is to apply nanotechnology and smart nanomaterials such as nanoclays, nanofibers, nanocomposites, nanobubbles, nanocapsules, solid-lipid nanoparticles, nanospheres, metallic nanoparticles, nanotubes, and nanocrystals. Among the nanomaterials, the smart nanoparticles present several advantages compared to other materials, creating the possibility to use them in various dental applications, including preventive dentistry, endodontics, restoration, and periodontal diseases. This review is focused on the recent developments and dental applications (drug delivery systems and restoration materials) of smart nanoparticles.
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Affiliation(s)
- Silvia Vasiliu
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, No. 41A, 700487 Iasi, Romania;
| | - Stefania Racovita
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, No. 41A, 700487 Iasi, Romania;
| | - Ionela Aurica Gugoasa
- Department of Natural and Synthetic Polymers, Faculty of Chemical Engineering and Environmental Protection, “Gheorghe Asachi” Technical University of Iasi, Prof. Dr. Docent Dimitrie Mangeron Street, No. 73, 700050 Iasi, Romania; (I.A.G.); (M.P.)
| | | | - Marcel Popa
- Department of Natural and Synthetic Polymers, Faculty of Chemical Engineering and Environmental Protection, “Gheorghe Asachi” Technical University of Iasi, Prof. Dr. Docent Dimitrie Mangeron Street, No. 73, 700050 Iasi, Romania; (I.A.G.); (M.P.)
- Academy of Romanian Scientists, Splaiul Independentei Street No. 54, 050085 Bucuresti, Romania
| | - Jacques Desbrieres
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Materiaux (IPREM), Pau and Pays de l’Adour University (UPPA), UMR CNRS 5254, Helioparc Pau Pyrenees, 2, av. President Angot, 64053 Pau CEDEX 09, France
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Development and optimisation of simulated salivary fluid for biorelevant oral cavity dissolution. Eur J Pharm Biopharm 2021; 160:125-133. [PMID: 33524535 DOI: 10.1016/j.ejpb.2021.01.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 01/20/2021] [Accepted: 01/24/2021] [Indexed: 11/23/2022]
Abstract
Drug release within the oral cavity can be of paramount importance for formulations that are designed for specific purposes such as taste-masking, faster onset of therapeutic action, localization of treatment or avoidance of first-pass metabolism. Preclinical methods for assessment of dissolution in the oral cavity are necessary for design and development of these formulation but currently there is no consensus on what variables should be defined to achieve biorelevance in these tests. In this study, biorelevant simulated salivary fluids (SSFs) that can be uniformly applied for oral cavity dissolution testing were developed. Unstimulated saliva (US) SSF and stimulated saliva (SS) SSF were separately developed since the two states significantly differ. Physicochemical properties including pH, buffer capacity, surface tension and viscosity were assessed during development and optimised to mimic human saliva (HS). In order to account for the salivary proteins in HS, use of bovine submaxillary mucin (BSM) and porcine gastric mucin (PGM) in SSFs was evaluated. Following optimisation of the SSFs, biorelevance of the developed SSFs to HS was assessed by their comparative physicochemical properties as well as dissolution profiles of three diverse model compounds (sildenafil citrate, efavirenz, and caffeine) which showed comparable profiles between the SSFs and HS. This work addresses the lack of uniformed biorelevant dissolution media for oral cavity dissolution studies and provides a basis for standardised dissolution tests that provide consistency and harmonisation in future oral cavity dissolution studies. We envisage that this will have a positive impact on the development of new medicines that require functionality in the oral cavity.
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Aspinall SR, Parker JK, Khutoryanskiy VV. Oral care product formulations, properties and challenges. Colloids Surf B Biointerfaces 2021; 200:111567. [PMID: 33454623 DOI: 10.1016/j.colsurfb.2021.111567] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/01/2021] [Accepted: 01/05/2021] [Indexed: 12/13/2022]
Abstract
This review explores the physical, chemical and structural properties of key components of oral care products, whilst looking at the challenges which need to be overcome to continue to improve the efficacy of oral care, and improve dental health. Oral care has been an essential part of all populations and cultures around the world for thousands of years. To maintain good oral health, dental plaque causing bacteria and malodour must be controlled whilst also strengthening and protecting the teeth to prevent dental caries. Advanced modern formulations need to provide controlled and extended release of ingredients vital for dental health. With modern day products such as toothpastes and mouthwashes, it has never been easier to maintain good oral hygiene and health, yet the incidence of dental caries is still on the rise. The complex formulations of modern toothpastes and mouthwashes makes them one of the most sophisticated pharmaceutical products on the market today. The demands of the consumer coupled with the complexity of the oral cavity make it one of the most challenging development processes.
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Affiliation(s)
- Sam R Aspinall
- Department of Pharmacy, University of Reading, Whiteknights, Reading, UK
| | - Jane K Parker
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading, UK
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The Influence of pH Values on the Rheological, Textural and Release Properties of Carbomer Polacril ® 40P-Based Dental Gel Formulation with Plant-Derived and Synthetic Active Components. Molecules 2020; 25:molecules25215018. [PMID: 33138200 PMCID: PMC7663699 DOI: 10.3390/molecules25215018] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/23/2020] [Accepted: 10/27/2020] [Indexed: 11/17/2022] Open
Abstract
The physicochemical properties, especially pH value of dental medicines, have significant influence on the health of oral cavity tissues. The pH of formulations should correspond to the value of saliva pH (5.5–8.0). For carbomer-based gels, the required pH value is obtained by neutralizing them with alkaline components, which leads to their structuring (thickening). This affects the physical properties of the gel, its residence time at the application site and the rate of release of active pharmaceutical ingredient. Therefore, the main purpose of this study is to evaluate the rheological, textural, and biopharmaceutical properties of Carbomer Polacril® 40P-based dental gel depending on the pH value. Evaluation of the rheological properties of gel preparations were performed by measuring the structural viscosity of the samples as a function of pH and temperature. The textural properties of the gel were evaluated by performing tests regarding back extrusion and spreadability. Carbomer Polacril® 40P-based gels haven’t shown noticeable thixotropic behavior, and were characterized by plastic flow in the whole studied pH range. The structural viscosity at the selected average pH value hasn’t differed at storage (25 °C) and application (37 °C) temperature. Texture studies of dental gels have shown a strong correlation with rheoparameters. Their rheological behavior and textural properties haven’t changed significantly between the pH range of 5.5–6.6. The relatively narrow range of working pH values does not affect the change in the viscosity of the preparation significantly and, consequently, does not affect the release of APIs from the developed Carbomer Polacril® 40P-based dental gel.
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Al-Sahaf Z, Raimi-Abraham B, Licciardi M, de Mohac LM. Influence of Polyvinyl Alcohol (PVA) on PVA-Poly-N-hydroxyethyl-aspartamide (PVA-PHEA) Microcrystalline Solid Dispersion Films. AAPS PharmSciTech 2020; 21:267. [PMID: 33006710 PMCID: PMC7532132 DOI: 10.1208/s12249-020-01811-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/02/2020] [Indexed: 11/30/2022] Open
Abstract
This study was conducted to formulate buccal films consisting of polyvinyl alcohol (PVA) and poly-N-hydroxyethyl-aspartamide (PHEA), to improve the dissolution of the drug through the oral mucosa. Ibuprofen sodium salt was used as a model drug, and the buccal film was expected to enhance its dissolution rate. Two different concentrations of PVA (5% w/v and 7.5% w/v) were used. Solvent casting was used to prepare films, where a solution consisting of drug and polymer was cast and allowed to dry. Attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR), differential scanning calorimetry (DSC), and scanning electron microscopy (SEM) were used to investigate the properties of films. In vitro dissolution studies were also conducted to investigate drug release. SEM studies showed that films containing a higher concentration of PVA had larger particles in microrange. FTIR studies confirmed the presence of the drug in films and indicated that ibuprofen sodium did not react with polymers. DSC studies confirmed the crystalline form of ibuprofen sodium when incorporated within films. In vitro dissolution studies found that the dissolution percentage of ibuprofen sodium alone was increased when incorporated within the film from 59 to 74%. This study led to the development of solid microcrystalline dispersion as a buccal film with a faster dissolution rate than the drug alone overcoming problem of poor solubility.
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Affiliation(s)
| | | | | | - Laura Modica de Mohac
- King's College London, London, UK. .,University of Study of Palermo, Palermo, Italy.
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Batra P, Dawar A, Miglani S. Microneedles and Nanopatches-Based Delivery Devices in Dentistry. Discoveries (Craiova) 2020; 8:e116. [PMID: 33094150 PMCID: PMC7561465 DOI: 10.15190/d.2020.13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Needle-based devices are evolving as a promising diagnostic and therapeutic tool in the field of medicine. They can be used for drug delivery, as well as extraction of fluids, for systemic and local effects. The conventional methods of drug delivery require repeated dosing in the oral cavity due to the presence of saliva. Hence delivery systems, such as needle-based devices that could provide sustained release of the drug in the oral cavity, are required. These devices could also be a useful adjunct in diagnosis and therapy of oral cancers, delivering anti-cariogenic and antiplaque agents, for remote monitoring of oral health, and for administering painless and fearless local anesthesia. Since they offer many advantages, such as increased compliance, absence of needle phobia, they are painless, safe, self-applicable and are minimally invasive, they will have a major impact in the field of dentistry. This paper summarizes the various types of needle-based devices and their manufacturing technologies. The manuscript aims to serve as a foundational review that highlights and proposes several current and prospective impactful applications of these devices in various fields of dentistry.
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Affiliation(s)
- Panchali Batra
- Department of Orthodontics, Faculty of Dentistry, Jamia Millia Islamia, (Central University), New Delhi, India
| | - Anika Dawar
- Division of Periodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Sanjay Miglani
- Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, Jamia Millia Islamia (Central University), New Delhi, India
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Flash tooth whitening: A friendly formulation based on a nanoencapsulated reductant. Colloids Surf B Biointerfaces 2020; 195:111241. [PMID: 32679445 DOI: 10.1016/j.colsurfb.2020.111241] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 06/12/2020] [Accepted: 07/02/2020] [Indexed: 11/23/2022]
Abstract
Tooth whitening materials have not undergone relevant advances in the last years. Current materials base their action on the oxidant activity of peroxides, which present the disadvantage of requiring long application times, along with unpleasant side effects of dental hypersensitivity (e.g. sharp pain). In this work, a novel tooth whitening formulation based on the encapsulation of a reducing agent (sodium metabisulfite) in liposomes is developed. An experimental design was applied to optimize the formulation in terms of whitening action and safety, using bovine teeth as in vitro model. Results were obtained by colorimetry, profilometry and nanoindentation techniques. The comparison with standard whitening treatments showed a similar whitening action of the optimized formulation but in remarkable shorter application times. Moreover, teeth roughness values obtained with the presented formulation conformed with ISO 28399. As mechanism of action, results obtained from fluorescent confocal microscopy showed the liposomal formulation to form a layer surrounding the enamel surface, enhancing the treatment efficacy in terms of diffusion of the protected reductant towards the enamel. The better efficiency of this formulation encourages its use as an alternative to current oxidative treatments.
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Mihalache C, Rata DM, Cadinoiu AN, Patras X, Sindilar EV, Bacaita SE, Popa M, Atanase LI, Daraba OM. Bupivacaine‐loaded chitosan hydrogels for topical anesthesia in dentistry. POLYM INT 2020. [DOI: 10.1002/pi.6052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Cristian Mihalache
- Faculty of Chemical Engineering and Environmental Protection ‘Cristofor Simionescu’ ‘Gheorghe Asachi’ Technical University of Iasi Iasi Romania
- Faculty of Medical Dentistry ‘Apollonia’ University of Iasi Iasi Romania
| | - Delia M Rata
- Faculty of Medical Dentistry ‘Apollonia’ University of Iasi Iasi Romania
| | - Anca N Cadinoiu
- Faculty of Medical Dentistry ‘Apollonia’ University of Iasi Iasi Romania
| | - Xenia Patras
- Faculty of Medical Dentistry ‘Apollonia’ University of Iasi Iasi Romania
| | - Eusebiu V Sindilar
- Faculty of Veterinary Medicine University of Agricultural Sciences and Veterinary Medicine Iasi Romania
| | - Simona E Bacaita
- Faculty of Machine Manufacturing and Industrial Management ‘Gheorghe Asachi’ Technical University of Iasi Iasi Romania
| | - Marcel Popa
- Faculty of Chemical Engineering and Environmental Protection ‘Cristofor Simionescu’ ‘Gheorghe Asachi’ Technical University of Iasi Iasi Romania
- Faculty of Medical Dentistry ‘Apollonia’ University of Iasi Iasi Romania
- Academy of Romanian Scientists Bucharest Romania
| | - Leonard I Atanase
- Faculty of Medical Dentistry ‘Apollonia’ University of Iasi Iasi Romania
| | - Oana M Daraba
- Faculty of Medical Dentistry ‘Apollonia’ University of Iasi Iasi Romania
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Uzunoğlu B, Wilson CG, Sağıroğlu M, Yüksel S, Şenel S. Mucoadhesive bilayered buccal platform for antifungal drug delivery into the oral cavity. Drug Deliv Transl Res 2020; 11:318-327. [PMID: 32578045 DOI: 10.1007/s13346-020-00798-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A drug delivery technology comprising a mucoadhesive bilayered buccally anchored tablet containing natamycin was developed. The concept was to anchor the tablet to the buccal tissue and allow controlled release of the drug through the matrix into the mouth. Carbomer (Carbopol ® 974 P NF) was used to formulate the mucoadhesive layer. Hydroxypropyl methylcellulose (HPMC) (Methocel® K4M) at 10, 15, 20, and 40% w/w was used for the drug-containing layer. Natamycin, an amphoteric macrolide antifungal agent, was incorporated into the formulations. In addition, tablets containing erythrosine as a marker were prepared in order to examine the distribution and retention of the dye in the oral cavity. As expected, the in vitro analysis showed that the concentration of natamycin released decreased with the increasing proportion of HPMC in the formulation. A small volunteer study was conducted using the tablets containing 10% and 20% HPMC to quantitate the patterns of distribution of the drug released into the oral cavity (upper right buccal vestibule, lower right and left buccal vestibules, and sublingual region). The mucoadhesive bilayered buccal tablet formulation provided a unidirectional release of the drug from the tablet into the oral cavity in a prolonged release fashion, maintaining drug concentration above the MIC value (2 μg/mL) for Candida albicans. The amount of the drug in the sublingual region was found to be lowest when compared with other regions, which is due to the higher flow of saliva in this region. Graphical abstract.
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Affiliation(s)
- Burcum Uzunoğlu
- Department of Pharmaceutical Technology, Hacettepe University, Faculty of Pharmacy, 06100, Ankara, Turkey
- Rx Corporate Communications, Mustafa Kemal Mah. Eskişehir yolu 9. km, Mahall Ankara C2 Blok No 10, Çankaya, Ankara, Turkey
| | - Clive G Wilson
- Strathclyde Institute of Pharmacy & Biomedical Sciences, G4 ONR, Glasgow, Scotland, UK
| | - Meral Sağıroğlu
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Hacettepe University, 06100, Ankara, Turkey
| | - Selin Yüksel
- Department of Pharmaceutical Technology, Hacettepe University, Faculty of Pharmacy, 06100, Ankara, Turkey
| | - Sevda Şenel
- Department of Pharmaceutical Technology, Hacettepe University, Faculty of Pharmacy, 06100, Ankara, Turkey.
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Nagireddy VR, Reddy D, Kondamadugu S, Puppala N, Mareddy A, Chris A. Nanosilver Fluoride-A Paradigm Shift for Arrest in Dental Caries in Primary Teeth of Schoolchildren: A Randomized Controlled Clinical Trial. Int J Clin Pediatr Dent 2020; 12:484-490. [PMID: 32440060 PMCID: PMC7229382 DOI: 10.5005/jp-journals-10005-1703] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background Due to limited financial resources, poor access to basic oral care, and the high cost of restorative treatment, children of low-income nations have their general health, social well-being, and education opportunities affected by untreated dental caries. Arresting caries treatment (ACT) has been proposed to manage untreated dental caries in children of disadvantaged communities. Aims and objectives The purpose of the present controlled clinical trial is to investigate the effectiveness of a new anticaries agent, nanosilver fluoride (NSF), preventing and arresting caries in children. Materials and methods A total of 100 deciduous molars both maxillary and mandibular are randomly selected from 60 children of 4–9 years of age group, which were randomly divided into NSF experimental group and saline control group. Teeth were clinically diagnosed and treated by one masked examiner and followed up at 7 days, 5 months and 12 months by another calibrated examiner who was blinded to the type of treatment. The criteria of the ICDAS II were followed to determine the activity of lesion and the diagnosis of caries. The Pearson's Chi-square test was used to compare the groups during different follow-up examinations. Results Seventy-eight percent of decayed teeth showed hard arrested dentine at 7 days; after 5-month analysis in the NSF group, 72.91% of the teeth showed arrested caries; and in the control group, only 34% of teeth showed arrest of caries. At 12-month analysis in the NSF group, 65.21% of teeth showed arrested cavities, and in the control group, 28.88% of teeth showed arrest of caries. Conclusion The present study proves that NSF is an anticaries agent and presents a noninvasive option for caries arrest and treatment when applied directly to dentin caries lesions. How to cite this article Nagireddy VR, Reddy D, Kondamadugu S, et al. Nanosilver Fluoride—A Paradigm Shift for Arrest in Dental Caries in Primary Teeth of Schoolchildren: A Randomized Controlled Clinical Trial. Int J Clin Pediatr Dent 2019;12(6):484–490.
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Affiliation(s)
- Venugopal R Nagireddy
- Department of Pediatric and Preventive Dentistry, Mamata Dental College and Hospital, Khammam, Telangana, India
| | - Daneswari Reddy
- Department of Pedodontics and Preventive Dentistry, Mamata Dental College and Hospital, Khammam, Telangana, India
| | - Saigeeta Kondamadugu
- Department of Pediatric and Preventive Dentistry, Mamata Dental College and Hospital, Khammam, Telangana, India
| | - Niharika Puppala
- Department of Pediatric and Preventive Dentistry, Mamata Dental College and Hospital, Khammam, Telangana, India
| | - Ajayreddy Mareddy
- Department of Pediatric and Preventive Dentistry, Mamata Dental College and Hospital, Khammam, Telangana, India
| | - Annie Chris
- Department of Pediatric and Preventive Dentistry, Mamata Dental College and Hospital, Khammam, Telangana, India
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Ion R, Necula MG, Mazare A, Mitran V, Neacsu P, Schmuki P, Cimpean A. Drug Delivery Systems Based on Titania Nanotubes and Active Agents for Enhanced Osseointegration of Bone Implants. Curr Med Chem 2020; 27:854-902. [PMID: 31362646 DOI: 10.2174/0929867326666190726123229] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 01/16/2019] [Accepted: 05/04/2019] [Indexed: 12/31/2022]
Abstract
TiO2 nanotubes (TNTs) are attractive nanostructures for localized drug delivery. Owing to their excellent biocompatibility and physicochemical properties, numerous functionalizations of TNTs have been attempted for their use as therapeutic agent delivery platforms. In this review, we discuss the current advances in the applications of TNT-based delivery systems with an emphasis on the various functionalizations of TNTs for enhancing osteogenesis at the bone-implant interface and for preventing implant-related infection. Innovation of therapies for enhancing osteogenesis still represents a critical challenge in regeneration of bone defects. The overall concept focuses on the use of osteoconductive materials in combination with the use of osteoinductive or osteopromotive factors. In this context, we highlight the strategies for improving the functionality of TNTs, using five classes of bioactive agents: growth factors (GFs), statins, plant derived molecules, inorganic therapeutic ions/nanoparticles (NPs) and antimicrobial compounds.
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Affiliation(s)
- Raluca Ion
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Madalina Georgiana Necula
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Anca Mazare
- University of Erlangen-Nuremberg, Department of Materials Science, Erlangen, Germany
| | - Valentina Mitran
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Patricia Neacsu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Patrik Schmuki
- University of Erlangen-Nuremberg, Department of Materials Science, Erlangen, Germany
| | - Anisoara Cimpean
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
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Bender L, Boostrom HM, Varricchio C, Zuanon M, Celiksoy V, Sloan A, Cowpe J, Heard CM. A novel dual action monolithic thermosetting hydrogel loaded with lidocaine and metronidazole as a potential treatment for alveolar osteitis. Eur J Pharm Biopharm 2020; 149:85-94. [DOI: 10.1016/j.ejpb.2020.01.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/17/2019] [Accepted: 01/18/2020] [Indexed: 11/26/2022]
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Wróblewska M, Szymańska E, Szekalska M, Winnicka K. Different Types of Gel Carriers as Metronidazole Delivery Systems to the Oral Mucosa. Polymers (Basel) 2020; 12:polym12030680. [PMID: 32204334 PMCID: PMC7182799 DOI: 10.3390/polym12030680] [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: 02/24/2020] [Revised: 03/17/2020] [Accepted: 03/17/2020] [Indexed: 01/18/2023] Open
Abstract
Periodontal diseases are some of the most widespread oral afflictions, and they are labeled as chronic infections caused by the accumulation of bacteria in dental plaque that produces localized inflammation of the periodontium. The use of local drug delivery systems to treat periodontal diseases has received greater attention, because the active substance is targeted directly to the affected area, which minimizes its systemic side effects. Therefore, the purpose of the investigation was to develop and characterize different types of gel formulations-bigel, hydrogel and oleogel-as local delivery systems containing metronidazole (MET), which can be applied to the oral mucosa. The influence of the formulation type on the mechanical, rheological and mucoadhesive properties were examined. Moreover, in vitro release of metronidazole, its ex vivo permeation through buccal porcine mucosa and antimicrobial activity measured by the plate diffusion method were estimated. It was found that the gel formulations obtained were non-Newtonian systems, showing a shear-thinning behavior and thixotropic properties with good textural features such as firmness, compressibility and adhesiveness. Moreover, the preparations designed possessed beneficial mucoadhesive properties. The formulated hydrogels and bigels containing micronized MET were considered as better formulations in terms of drug release and antimicrobial activity compared to commercially available metronidazole ointment. An ex vivo permeation study with the use of porcine buccal mucosa demonstrated that the bigel formulation was characterized by higher initial permeability rate providing a fast therapeutic effect with simultaneous moderate retention in mucosal tissue to decrease the risk of local cytotoxicity.
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Preethi GU, Sreekutty J, Unnikrishnan BS, Archana MG, Syama HP, Deepa M, Shiji R, Anusree KS, Sreelekha TT. Doxorubicin eluting microporous polysaccharide scaffolds: An implantable device to expunge tumour. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 107:110332. [DOI: 10.1016/j.msec.2019.110332] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 10/14/2019] [Accepted: 10/14/2019] [Indexed: 01/08/2023]
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Liang J, Peng X, Zhou X, Zou J, Cheng L. Emerging Applications of Drug Delivery Systems in Oral Infectious Diseases Prevention and Treatment. Molecules 2020; 25:E516. [PMID: 31991678 PMCID: PMC7038021 DOI: 10.3390/molecules25030516] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 01/17/2020] [Accepted: 01/20/2020] [Indexed: 12/27/2022] Open
Abstract
The oral cavity is a unique complex ecosystem colonized with huge numbers of microorganism species. Oral cavities are closely associated with oral health and sequentially with systemic health. Many factors might cause the shift of composition of oral microbiota, thus leading to the dysbiosis of oral micro-environment and oral infectious diseases. Local therapies and dental hygiene procedures are the main kinds of treatment. Currently, oral drug delivery systems (DDS) have drawn great attention, and are considered as important adjuvant therapy for oral infectious diseases. DDS are devices that could transport and release the therapeutic drugs or bioactive agents to a certain site and a certain rate in vivo. They could significantly increase the therapeutic effect and reduce the side effect compared with traditional medicine. In the review, emerging recent applications of DDS in the treatment for oral infectious diseases have been summarized, including dental caries, periodontitis, peri-implantitis and oral candidiasis. Furthermore, oral stimuli-responsive DDS, also known as "smart" DDS, have been reported recently, which could react to oral environment and provide more accurate drug delivery or release. In this article, oral smart DDS have also been reviewed. The limits have been discussed, and the research potential demonstrates good prospects.
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Affiliation(s)
| | | | | | - Jing Zou
- State Key Laboratory of Oral Diseases& West China School of Stomatology& National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu 610041, China; (J.L.); (X.P.); (X.Z.)
| | - Lei Cheng
- State Key Laboratory of Oral Diseases& West China School of Stomatology& National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu 610041, China; (J.L.); (X.P.); (X.Z.)
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Ghafar H, Khan MI, Sarwar HS, Yaqoob S, Hussain SZ, Tariq I, Madni AU, Shahnaz G, Sohail MF. Development and Characterization of Bioadhesive Film Embedded with Lignocaine and Calcium Fluoride Nanoparticles. AAPS PharmSciTech 2020; 21:60. [PMID: 31912272 DOI: 10.1208/s12249-019-1615-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 12/16/2019] [Indexed: 11/30/2022] Open
Abstract
The formation of biofilm by Streptococcus mutans on the tooth surface is the primary cause of dental caries and periodontal diseases, and fluoride (F) has shown tremendous potential as a therapeutic moiety against these problems. Herein, we report an efficient multi-ingredient bioadhesive film-based delivery system for oral cavity to combat dental problems with an ease of administration. Thiolated chitosan-based bioadhesive film loaded with calcium fluoride nanoparticles (CaF2 NPs) and lignocaine as a continuous reservoir for prolonged delivery was successfully prepared and characterized. The polygonal CaF2 NPs with an average particle size less than 100 nm, PDI 0.253, and + 6.10 mV zeta potential were synthesized and loaded in film. The energy dispersive x-ray (EDX) spectroscopy confirmed the presence 33.13% F content in CaF2 NPs. The characterization of the three film trials for their mechanical strength, bioadhesion, drug release, and permeation enhancement suggested film B as better among the three trials and showed significant outcomes, indicating the potential application of the medicated bioadhesive film. In vitro dissolution studies revealed sustained release pattern of lignocaine and CaF2 NP following Krosmeyer-Peppas model over 8 h. Franz diffusion studies showed the prolonged contact time of film with mucosa that facilitated the transport of CaF2 NPs and lignocaine across the mucosa. Hence, the prepared bioadhesive film-based system showed good potential for better management of dental problems. Graphical Abstract.
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Korani S, Bahrami S, Korani M, Banach M, Johnston TP, Sahebkar A. Parenteral systems for statin delivery: a review. Lipids Health Dis 2019; 18:193. [PMID: 31690335 PMCID: PMC6829835 DOI: 10.1186/s12944-019-1139-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 10/22/2019] [Indexed: 11/10/2022] Open
Abstract
The oral route of drug administration is the most common and convenient route for dosing statin drugs, and, in fact, most medications, because of ease of drug delivery, patient compliance, and cost-effectiveness. However, the oral administration of statin drugs has disadvantages such as hepatic first-pass metabolism and degradation within the gastrointestinal tract that limit their overall bioavailability. This review introduces several diverse non-oral delivery methods for the administration of statins. These alternative delivery systems and routes of administration are varied and are capable of improving the bioavailability and therapeutic efficacy of statin drugs.
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Affiliation(s)
- Shahla Korani
- Research center of oils and fats, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Samira Bahrami
- Biotechnology Department, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mitra Korani
- Nanotechnology Research Center, Buali (Avicenna) Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maciej Banach
- Department of Hypertension, WAM University Hospital in Lodz, Medical University of Lodz, Zeromskiego 113, Lodz, Poland.,Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland
| | - Thomas P Johnston
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, Kansas City, Missouri, USA
| | - Amirhossein Sahebkar
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. .,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, 9177948564, Iran. .,School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran. .,Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, P.O. Box: 91779-48564, Mashhad, Iran.
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Wijetunge SS, Wen J, Yeh CK, Sun Y. Wheat germ agglutinin liposomes with surface grafted cyclodextrins as bioadhesive dual-drug delivery nanocarriers to treat oral cells. Colloids Surf B Biointerfaces 2019; 185:110572. [PMID: 31654890 DOI: 10.1016/j.colsurfb.2019.110572] [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: 07/02/2019] [Revised: 09/12/2019] [Accepted: 10/08/2019] [Indexed: 10/25/2022]
Abstract
Topical management of oral infection requires combined use of multiple classes of drugs and frequent dosing due to low drug retention rates. The sustained, co-delivery of drugs with different solubilities to cells using nanoparticle drug delivery systems remains a challenge. Here, we developed wheat germ agglutinin (WGA) conjugated liposomes with surface grafted cyclodextrin (WGA-liposome-CD) as bioadhesive dual-drug nanocarriers. We effectively encapsulated two physiochemically different drugs (ciprofloxacin and betamethasone) and demonstrated sustained co-drug release in saliva over a 24 h period in vitro. As proof of therapeutic utility in oral cells, we infected oral keratinocytes with Aggregatibacter actinomycetemcomitans, a bacterial pathogen responsible for chronic periodontal disease. Drug release, resulting from nanocarrier cell binding, produced a significant increase in oral cell survival and synergistically reduced inflammation. These results suggest that WGA-liposome-CD nanocarriers are novel cyto-adhesive candidates for delivering multiple drugs with sustained therapeutic activity for localized drug delivery to oral cells.
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Affiliation(s)
- Sashini S Wijetunge
- Department of Chemistry, University of Massachusetts Lowell, 1 University Avenue, Lowell, MA 01854, United States
| | - Jianchuan Wen
- Department of Chemistry, University of Massachusetts Lowell, 1 University Avenue, Lowell, MA 01854, United States
| | - Chih-Ko Yeh
- Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio and Geriatric Research Education and Clinical Center, Audie L. Murphy Division, South Texas Veterans Health Care System, 7400 Merton Minter Boulevard, San Antonio, TX 78229, United States
| | - Yuyu Sun
- Department of Chemistry, University of Massachusetts Lowell, 1 University Avenue, Lowell, MA 01854, United States.
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