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Ferreira JO, Zambuzi GC, Camargos CHM, Carvalho ACW, Ferreira MP, Rezende CA, de Freitas O, Francisco KR. Zein and hydroxypropyl methylcellulose acetate succinate microfibers combined with metronidazole benzoate and/or metronidazole-incorporated cellulose nanofibrils for potential periodontal treatment. Int J Biol Macromol 2024; 261:129701. [PMID: 38280709 DOI: 10.1016/j.ijbiomac.2024.129701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 01/13/2024] [Accepted: 01/22/2024] [Indexed: 01/29/2024]
Abstract
The development of flexible and porous materials to control antibacterial delivery is a pivotal endeavor in medical science. In this study, we aimed to produce long and defect-free fibers made of zein and hydroxypropyl methylcellulose acetate succinate (HPMCAS) to be used as a platform for the release of metronidazole (MDZ) and metronidazole benzoate (BMDZ) to be potentially used in periodontal treatment. Microfibers prepared via electrospinning under a 2:3 (w/w) zein to HPMCAS ratio, containing 0.5 % (w/w) poly(ethylene oxide) (PEO) and 1 % (w/w) cellulose nanofibril (CNF) were loaded with 40 % (w/w) MDZ, 40 % (w/w) BMDZ, or a combination of 20 % (w/w) of each drug. The addition of CNF improved the electrospinning process, resulting in long fibers with reduced MDZ and BMDZ surface crystallization. MDZ- and BMDZ-incorporated fibers were semicrystalline and displayed commendable compatibility among drugs, nanocellulose and polymeric chains. Release tests showed that zein/HPMCAS/PEO fibers without CNF and with 20 % (w/w) MDZ/ 20 % (w/w) BMDZ released the drug at a slower and more sustained rate compared to other samples over extended periods (up to 5 days), which is a favorable aspect concerning periodontitis treatment.
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Affiliation(s)
- João O Ferreira
- Science and Technology Center for Sustainability, Federal University of São Carlos, Rod. SP-264, km 110, Sorocaba 18052-780, SP, Brazil
| | - Giovana C Zambuzi
- Science and Technology Center for Sustainability, Federal University of São Carlos, Rod. SP-264, km 110, Sorocaba 18052-780, SP, Brazil
| | - Camilla H M Camargos
- Department of Physical Chemistry, Institute of Chemistry, University of Campinas, 13083-970 Campinas, SP, Brazil; School of Fine Arts, Federal University of Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
| | - Ana C W Carvalho
- Department of Pharmaceutical Sciences, Faculty of Pharmaceuticals Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14040-903, SP, Brazil
| | - Maíra P Ferreira
- Department of Pharmaceutical Sciences, Faculty of Pharmaceuticals Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14040-903, SP, Brazil
| | - Camila A Rezende
- Department of Physical Chemistry, Institute of Chemistry, University of Campinas, 13083-970 Campinas, SP, Brazil
| | - Osvaldo de Freitas
- Department of Pharmaceutical Sciences, Faculty of Pharmaceuticals Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14040-903, SP, Brazil
| | - Kelly R Francisco
- Science and Technology Center for Sustainability, Federal University of São Carlos, Rod. SP-264, km 110, Sorocaba 18052-780, SP, Brazil; Department of Natural Science, Mathematics and Education, Federal University of São Carlos-UFSCar, Araras 13604-900, SP, Brazil.
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Yu Z, Xiong Y, Fan M, Li J, Liang K. Metronidazole and Ketoprofen-Loaded Mesoporous Magnesium Carbonate for Rapid Treatment of Acute Periodontitis In Vitro. ACS OMEGA 2023; 8:25441-25452. [PMID: 37483201 PMCID: PMC10357566 DOI: 10.1021/acsomega.3c02968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 06/13/2023] [Indexed: 07/25/2023]
Abstract
In the clinical pharmacological treatment of acute periodontitis, local periodontal administration is expected to be preferable to systemic administration. However, the action of the active medicine component is hindered and diminished by the limitation of drug solubility, which does not provide timely relief of the enormous pain being suffered by patients. This study aimed to develop a mesoporous magnesium carbonate (MMC) medicine loading system consisting of MMC, metronidazole (MET), and ketoprofen (KET), which was noted as MET-KET@MMC. A solvent evaporation process was utilized to load MET and KET in MMC. Scanning electron microscopy, nitrogen sorption, thermogravimetric analysis, and X-ray diffraction were performed on the MET-KET@MMC. The rapid drug release properties were also investigated through the drug release curve. The rapid antiseptic property against Porphyromonas gingivalis (P. gingivalis) and the rapid anti-inflammatory property (within 1 min) were analyzed in vitro. The cytotoxicity of MET-KET@MMC was tested in direct contact with human gingival cells and human oral keratinocytes. Crystallizations of MET and KET were completely suppressed in MMC. As compared to crystalline MET and KET, MMC induced higher apparent solubility and rapid drug release, resulting in 8.76 times and 3.43 times higher release percentages of the drugs, respectively. Over 70.11% of MET and 85.97% of KET were released from MMC within 1 min, resisting bacteria and reducing inflammation. MET-KET@MMC nanoparticles enhanced the solubility of drugs and possess rapid antimicrobial and anti-inflammatory properties. The MET-KET@MMC is a promising candidate for the pharmacotherapy of acute periodontitis with drugs, highlighting a significant clinical potential of MMC-based immediate drug release systems.
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Affiliation(s)
- Zhaohan Yu
- 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
| | - Yan Xiong
- Orthopedic
Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Menglin Fan
- 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
| | - Jiyao 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
| | - Kunneng Liang
- 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
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Effect of an Experimental Formulation Containing Chlorhexidine on Pathogenic Biofilms and Drug Release Behavior in the Presence or Absence of Bacteria. Pharmaceutics 2019; 11:pharmaceutics11020088. [PMID: 30791400 PMCID: PMC6410057 DOI: 10.3390/pharmaceutics11020088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/12/2019] [Accepted: 02/18/2019] [Indexed: 01/09/2023] Open
Abstract
(1) Background: For any antibacterial oral formulation to be successful, it must present effects in the presence of biofilms. Therefore, our aim is to analyze the drug release and the antibiofilm effects of a semi-solid formulation containing chlorhexidine (CHX) in the presence of pathogenic biofilms. (2) Methods: The biofilms of Streptococcus mutans (n = 6) or Porphyromonas gingivalis (n = 3) were formed for 6 and 4 days, respectively, being exposed to: 1) a CHX system or 2) vehicle control without CHX. A group without treatment was included as negative control. The acidogenicity, CHX quantification and bacterial viability were determined. A dissolution assay in a buffer and culture medium in the absence of bacteria was also performed. (3) Results: Although the CHX quantification in the culture medium of both biofilms was lower compared to the buffer (p < 0.05) and the culture medium in the absence of bacteria, the CHX system was able to display antibiofilm effects until 96 h for the S. mutans biofilms (p < 0.05) and 72 h for the P. gingivalis biofilms (p < 0.05). (4) Conclusions: The experimental formulation is able to extend chlorhexidine effects, even in challenging conditions such as in the presence of bacteria, allowing the in vitro control of cariogenic biofilms for 4 days and periodontopathogenic biofilms for 3 days.
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Tamer Y, Chen B. Lysine-derived, pH-sensitive and biodegradable poly(beta-aminoester urethane) networks and their local drug delivery behaviour. SOFT MATTER 2018; 14:1195-1209. [PMID: 29349467 DOI: 10.1039/c7sm01886j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, a series of covalently crosslinked, l-lysine based poly(beta-aminoester urethane) (LPBAEU) networks with good biodegradability and pH sensitivity was reported. The effect of hydrophilic/hydrophobic characteristics and diacrylate/amine molar ratio on the structure, swelling and degradation behaviour of the networks was investigated. The water transport mechanism and dynamic swelling behavior of the LPBAEU networks were strongly affected by medium pH, and swelling amounts up to 252.2% and 148.7% were observed at pH 5.6 and pH 7.4, respectively. It was found that water diffusion within the networks followed a non-Fickian mechanism. The LPBAEU network with the highest diacrylate/amine molar ratio exhibited the highest tensile strength and Young's modulus. In vitro mass losses of networks showed that the degradation rate of LPBAEU networks can be adjusted from 4 to 14 days. LPBAEU networks also supported loading of doxycycline hyclate (DH) and in vitro release studies demonstrated that release of DH from the networks was substantially hindered in the neutral pH environment, with 20.9-56.2% DH release, whereas DH release was accelerated under mild acidic conditions, with a release percentage of 36.6-99.6%. The release data were fitted to different mathematical models and the obtained results confirmed that these networks released DH in a non-Fickian mechanism. The results of this research support the idea that pH-responsive LPBAEU networks may find potential applications in local drug delivery.
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Affiliation(s)
- Yasemin Tamer
- Department of Polymer Engineering, Yalova University, Yalova, 77100, Turkey
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Whether a novel drug delivery system can overcome the problem of biofilms in respiratory diseases? Drug Deliv Transl Res 2016; 7:179-187. [DOI: 10.1007/s13346-016-0349-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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