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Moradi Haghgoo J, Torkzaban P, Hashemi P, Sarvari R, Hashemi S, Fakhri E, Alafchi B. Clinical evaluation of chitosan/polycaprolactone nanofibrous scaffolds releasing tetracycline hydrochloride in periodontal pockets of patients with chronic periodontitis. JOURNAL OF ADVANCED PERIODONTOLOGY & IMPLANT DENTISTRY 2023; 15:74-79. [PMID: 38357337 PMCID: PMC10862042 DOI: 10.34172/japid.2023.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 11/30/2023] [Indexed: 02/16/2024]
Abstract
Background The role of bacteria in the initiation and progression of periodontitis has led to a great interest in using antibiotics to suppress pathogenic microbiota. Considering the drawbacks of systemic antibiotics' application, local delivery systems directly in the periodontal pocket can be helpful. Therefore, the effect of an efficient tetracycline-loaded delivery system was investigated on the clinical parameters of periodontitis. Methods In this clinical trial with a split-mouth design, 10 patients with periodontitis with pocket depths≥5 mm were included. After scaling and root planing (SRP) for all the patients, one side of the mouth was randomly considered as the control group, and on the other side, chitosan/polycaprolactone (PCL) nanofibrous films containing tetracycline (5%) were placed in pockets of 5 mm and deeper. Clinical measurements of pocket probing depth (PPD), clinical attachment loss (CAL), and bleeding on probing (BOP) indices were made at the beginning and after 8 weeks of intervention. PPD, CAL, and BOP parameters were compared between the control and test groups before and after the intervention with paired t tests using SPSS 24. The significance level of the tests was considered at P<0.05. Results The mean PPD, CAL, and BOP in both the control (SRP) and test (LDDs) groups decreased after 8 weeks. A significant difference was detected in reducing PPD, BOP, and CAL after 8 weeks in 5-mm pockets, and the mean values were higher in the test group than in the control (P<0.05). Conclusion The local drug delivery system using chitosan/PCL nanofibrous films containing tetracycline can effectively control periodontal diseases by reducing pocket depth and inflammation and improving CAL without offering side effects, although further evaluations are needed.
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Affiliation(s)
- Janet Moradi Haghgoo
- Department of Periodontics, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Parviz Torkzaban
- Department of Periodontics, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Parisa Hashemi
- Department of Periodontics, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Rana Sarvari
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sana Hashemi
- Department of Prosthodontics, School of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elahe Fakhri
- Dental and Periodontal Research Center, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behnaz Alafchi
- Department of Biostatistics, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
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2
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Grzeczka A, Lech M, Wozniak G, Graczyk S, Kordowitzki P, Olejnik M, Gehrke M, Jaśkowski JM. Periodontitis Disease in Farmed Ruminants-Current State of Research. Int J Mol Sci 2023; 24:9763. [PMID: 37298712 PMCID: PMC10253686 DOI: 10.3390/ijms24119763] [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: 04/27/2023] [Revised: 05/27/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
Periodontal disease in ruminants is common and occurs in farmed and wild animals. Periodontal lesions can result from the secretion of endotoxins by pathogenic bacteria and as consequences of immune system activity. Three main types of periodontitis have been described. The first is chronic inflammation involving mainly premolars and molars-periodontitis (PD). The second type is an acute inflammatory reaction occurring with calcification of the periosteum of the jawbone and swelling of the surrounding soft tissues (Cara inchada, CI-"swollen face"). Finally, a third type, similar to the first but located in the incisor area, is called "broken mouth" (BM). Etiological variation between the different types of periodontitis is indicated. This particularly manifests in the composition of the microbiome, which is characteristic of the different forms of periodontitis. The widespread detection of lesions has drawn attention to the current nature of the problem.
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Affiliation(s)
| | | | | | | | | | - Małgorzata Olejnik
- Institute of Veterinary Medicine, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, 87-100 Torun, Poland; (A.G.); (M.L.); (G.W.); (S.G.); (P.K.); (M.G.); (J.M.J.)
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3
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Alkayali MFMT, Badria FA, ElBaiomy AAB, Youssef JM. Effect of polycaprolactone nanofibers loaded with oxytetracycline hydrochloride and zinc oxide as an adjunct to SRP on GCF lipocalin-2 levels in periodontitis patients: A clinical and laboratory study. JOURNAL OF ADVANCED PERIODONTOLOGY & IMPLANT DENTISTRY 2022; 14:76-83. [PMID: 36714082 PMCID: PMC9871181 DOI: 10.34172/japid.2022.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/31/2022] [Indexed: 01/09/2023]
Abstract
Background. The aim of this study was the clinical and laboratory evaluation of using polycaprolactone (PCL) nanofibers loaded with oxytetracycline hydrochloride (OTC) and zinc oxide (ZnO) as an adjunct to mechanical therapy in managing stage II grade A periodontitis patients concerning GCF lipocalin2- levels. Methods. Fifty stage II grade A periodontitis patients (27 women and 23 men, with an age range of 30‒60) were enrolled in the study. The patients were randomly assigned to five equal groups and treated with scaling and root planing (SRP), followed by local application of PCL nanofibers: group I: SRP + PCL loaded with OTC and ZnO, group II: SRP + PCL loaded with OTC, group III: SRP + PCL loaded with ZnO, group IV: SRP + unloaded PCL, and group V: SRP alone. Additionally, 10 healthy subjects with healthy periodontium (group VI) (age- and gender-matched) served as the negative control. Nanofibers were applied in the selected pockets of periodontitis patients in groups I to IV once weekly for two months. All the participants were examined clinically by assessing periodontal indices (gingival index, plaque index, pocket depth, and clinical attachment level), and biochemically by assessing GCF lipocalin-2 levels. Results. Compared to controls, periodontitis groups (I, II, III, IV, and V) showed significant elevation of both clinical parameters and GCF lipocalin2- levels at baseline. In addition, these parameters improved significantly after treatment, which was more pronounced in groups I, II-, and III) compared to groups IV and V. However, it did not reach normal values. Conclusion. In association with SRP, PCL nanofibers loaded with OTC and ZnO had beneficial therapeutic effects at both clinical and laboratory levels.
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Affiliation(s)
| | - Farid A. Badria
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | | | - Jilan Mohamed Youssef
- Department of Oral Medicine, Periodontology, Diagnosis and Oral Radiology, Faculty of Dentistry, Mansoura University, Mansoura, Egypt,Corresponding author: Jilan M. Youssef, E-mail:
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4
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Polyhydroxyalkanoates Composites and Blends: Improved Properties and New Applications. JOURNAL OF COMPOSITES SCIENCE 2022. [DOI: 10.3390/jcs6070206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Composites of Polyhydroxyalkanoates (PHAs) have been proven to have enhanced properties in comparison to the pure form of these polyesters. Depending on what polymer or material is added to PHAs, the enhancement of different properties is observed. Since PHAs are explored for usage in diverse fields, understanding what blends affect what properties would guide further investigations towards application. This article reviews works that have been carried out with composite variation for application in several fields. Some properties of PHAs are highlighted and composite variation for their modulations are explored.
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Dar-Odeh N, Elsayed S, Babkair H, Abu-Hammad S, Althagafi N, Bahabri R, Eldeen YS, Aljohani W, Abu-Hammad O. What the dental practitioner needs to know about pharmaco-therapeutic modalities of COVID-19 treatment: A review. J Dent Sci 2021; 16:806-816. [PMID: 33230404 PMCID: PMC7674127 DOI: 10.1016/j.jds.2020.11.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/12/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND/PURPOSE Several pharmacotherapeutic methods have been used for the treatment of COVID-19 with varying degrees of success. No definitive treatment or vaccine has been officially approved to-date. This review aimed to highlight COVID-19 pharmacotherapeutic agents that are relevant to dental practice in terms of their clinical indications in COVID-19 and dental practice, as well as their adverse effects as they impact the dental patient. MATERIAL AND METHODS Systematic search was performed using the following keywords combinations: Pharmacotherapy AND COVID-19 OR Pharmacotherapy AND SARS-CoV-2 OR Treatment AND COVID-19. Studies were categorized according to the type of pharmacotherapy used. Pharmacotherapeutic agents were extracted and only those relevant to dental practice were included for review. RESULTS For analysis, a total of 79 clinical trials research articles were included that included COVID-19 pharmacotherapeutic agents relevant to dental practice. Those were analgesics (paracetamol; non-steroidal anti-inflammatory agents); antibiotics (azithromycin, doxycycline, metronidazole); antivirals (penciclovir); and immunomodulatory agents (hydroxychloroquine, corticosteroids). While some COVID-19 drugs are less relevant to dental practice, as antivirals and hydroxychloroquine, their association with long-term adverse effects requires adequate knowledge among dental practitioners. CONCLUSION Many of COVID-19 pharmacotherapeutic agents are used to treat oral diseases particularly orofacial pain and inflammatory conditions. Furthermore, some of these drugs may induce adverse effects that complicate dental treatment. Thorough knowledge of COVID-19 therapy and its dental implications is essential for dental practitioners, and is expected to contribute to a better understanding and effective utilization of these therapeutic agents.
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Affiliation(s)
- Najla Dar-Odeh
- College of Dentistry, Taibah University, Al Madinah, Al Munawara, Saudi Arabia
- School of Dentistry, University of Jordan, Amman, Jordan
| | - Shadia Elsayed
- College of Dentistry, Taibah University, Al Madinah, Al Munawara, Saudi Arabia
- Faculty of Dental Medicine for Girls, Al-Azhar, University, Cairo, Egypt
| | - Hamzah Babkair
- College of Dentistry, Taibah University, Al Madinah, Al Munawara, Saudi Arabia
| | | | - Nebras Althagafi
- College of Dentistry, Taibah University, Al Madinah, Al Munawara, Saudi Arabia
| | - Rayan Bahabri
- College of Dentistry, Taibah University, Al Madinah, Al Munawara, Saudi Arabia
| | | | - Wejdan Aljohani
- College of Dentistry, Taibah University, Al Madinah, Al Munawara, Saudi Arabia
| | - Osama Abu-Hammad
- College of Dentistry, Taibah University, Al Madinah, Al Munawara, Saudi Arabia
- School of Dentistry, University of Jordan, Amman, Jordan
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Katayama T, Sato T, Hamada N, Goda S, Yamaguchi T, Tsukinoki K, Handa K. Effects of Jixueteng on Experimental Periodontitis During Orthodontic Tooth Movement in Rats. Nat Prod Commun 2021. [DOI: 10.1177/1934578x211002419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Recently, natural ingredients have focused on the inhibition of bacteria-induced alveolar bone resorption in orthodontic treatment. Jixueteng (Jix), a Chinese traditional medicine, contains several kinds of flavonoids given their biological properties. We evaluated the effects of Jix on experimental periodontitis during orthodontic tooth movement (OTM) in rats. To this end, 9-week-old male Wistar rats, which were equipped with orthodontic appliance, were orally infected with Porphyromonas gingivalis (Pg), while Jix was administered in their drinking water. A total of 28 days after the beginning of OTM, alveolar bone resorption on the right side of the upper jaws was scanned with micro-computed tomography. These were also used as histological specimens and underwent tartrate-resistant acid phosphatase (TRAP) staining. TRAP-positive multinucleated cells were counted as osteoclasts. As a result, the distance of tooth movement in the OTM and Pg infection with Jix administration (OTM + Pg + Jix) group was the same as that of the sham-infected group. The amount of bone resorption and number of osteoclasts in the OTM + Pg + Jix group was more significantly decreased than that in the OTM and Pg-infected group ( P < 0.05). Hence, Jix had little effect on OTM and inhibited Pg-induced alveolar bone destruction. We suggested that the administration of Jix can support tooth movement and contribute to the prevention of periodontitis during orthodontic treatment.
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Affiliation(s)
- Taira Katayama
- Division of Orthodontics, Department of Oral Interdisciplinary Medicine, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Kanagawa, Japan
| | - Takenori Sato
- Division of Oral Biochemistry, Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Kanagawa, Japan
| | - Nobushiro Hamada
- Division of Microbiology, Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Kanagawa, Japan
| | - Seiji Goda
- Department of Physiology, Osaka Dental University, Hirakata, Osaka, Japan
| | - Tetsutaro Yamaguchi
- Division of Orthodontics, Department of Oral Interdisciplinary Medicine, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Kanagawa, Japan
| | - Keiichi Tsukinoki
- Division of Environmental Pathology, Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Kanagawa, Japan
| | - Keisuke Handa
- Division of Oral Biochemistry, Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Kanagawa, Japan
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Qiu G, Huang M, Liu J, Wang P, Schneider A, Ren K, Oates TW, Weir MD, Xu HHK, Zhao L. Antibacterial calcium phosphate cement with human periodontal ligament stem cell-microbeads to enhance bone regeneration and combat infection. J Tissue Eng Regen Med 2021; 15:232-243. [PMID: 33434402 DOI: 10.1002/term.3169] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 11/14/2020] [Accepted: 12/01/2020] [Indexed: 12/17/2022]
Abstract
Infectious bone defects remain a significant challenge in orthopedics and dentistry. Calcium phosphate cement (CPC) have attracted significant interest in use as local drug delivery system, which with great potential to control release of antibiotics for the treatment of infectious bone defects. Within the current study, a novel antibacterial scaffold of chitosan-reinforced calcium phosphate cement delivering doxycycline hyclate (CPCC + DOX) was developed. Furthermore, the capacity of CPCC + DOX scaffolds for bone regeneration was enhanced by the human periodontal ligament stem cells (hPDLSCs) encapsulated in alginate beads. CPCC + DOX scaffolds were fabricated to contain different concentrations of DOX. Flexural strength of CPCC + DOX ranged from 5.56 ± 0.70 to 6.2 ± 0.72 MPa, which exceeded the reported strength of cancellous bone. Scaffolds exhibited continual DOX release, reaching 80% at 21 days. Scaffold with 5 mg/ml DOX (CPCC + DOX5mg) had a strong antibacterial effect, with a 4-log colony forming unit reduction against S. aureus and P. gingivalis. The proliferation and osteogenic differentiation of hPDLSCs encapsulated in alginate hydrogel microbeads were investigated in culture with CPCC + DOX scaffolds. CPCC + DOX5mg had no negative effect on proliferation of hPDLSCs. Alkaline phosphatase activity, mineral synthesis, and osteogenic gene expressions for CPCC + DOX5mg group were much higher than control group. DOX did not compromise the osteogenic induction. In summary, the novel CPCC + DOX scaffold exhibited excellent mechanical properties and strong antibacterial activity, while supporting the proliferation and osteogenic differentiation of hPDLSCs. The CPCC + DOX + hPDLSCs construct is promising to enhance bone regeneration and combat bone infections in dental, craniofacial, and orthopedic applications.
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Affiliation(s)
- Gengtao Qiu
- Department of Trauma and Joint Surgery, Shunde Hospital, Southern Medical University, Foshan, Guangdong, China.,Department of Orthopaedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.,Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, Maryland, USA
| | - Mingguang Huang
- Department of Orthopaedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jin Liu
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, Maryland, USA.,Key Laboratory of Shannxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shannxi, China
| | - Ping Wang
- Kornberg School of Dentistry, Temple University, Philadelphia, Pennsylvania, USA
| | - Abraham Schneider
- Department of Oncology and Diagnostic Sciences, University of Maryland School of Dentistry, Baltimore, Maryland, USA.,Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Ke Ren
- Department of Neural and Pain Sciences, School of Dentistry, Program in Neuroscience, University of Maryland, Baltimore, Maryland, USA
| | - Thomas W Oates
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, Maryland, USA
| | - Michael D Weir
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, Maryland, USA
| | - Hockin H K Xu
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, Maryland, USA.,Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, Maryland, USA.,Center for Stem Cell Biology and Regenerative Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Liang Zhao
- Department of Trauma and Joint Surgery, Shunde Hospital, Southern Medical University, Foshan, Guangdong, China.,Department of Orthopaedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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8
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Sousa FF, Luzardo-Álvarez A, Pérez-Estévéz A, Seoane-Prado R, Blanco-Méndez J. Sponges containing tetracycline loaded-PLGA-zein microparticles as a periodontal controlled release device. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Murakami Y, Kawata A, Suzuki S, Fujisawa S. Radical-scavenging and Pro-/anti-inflammatory Activity of Tetracycline and Related Phenolic Compounds With or Without Visible Light Irradiation. In Vivo 2020; 34:81-94. [PMID: 31882466 PMCID: PMC6984092 DOI: 10.21873/invivo.11748] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/17/2019] [Accepted: 10/21/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND/AIM Microbial tetracycline (TC) pastes have been employed to treat oral bacterial infection. In the present study, we investigated the kinetic radical-scavenging and pro-/anti-inflammatory activity of TC with or without visible light irradiation (VLI). MATERIALS AND METHODS The radical-scavenging activity of TC and minocycline (MC) was determined by differential scanning calorimetry (DSC). The stoichiometric factor (n) and the rate constant of inhibition and propagation (kinh/kp) were determined. The levels of cyclooxygenase-2 (Cox2), tumor necrosis factor-α (Tnfα) or nitric oxide synthase 2 (Nos2) mRNA in RAW264.7 cells stimulated with lipopolysaccharide (LPS) were investigated using real-time reverse transcriptase-polymerase chain reaction. RESULTS The n and kinh/kp values for 1 mM TC in 2,2'-azobisisobutyronitrile and benzoyl peroxide systems were 0.1-0.2 and 119-250, respectively, whereas the corresponding values for quercetin (QU) and resveratrol (RE) were 2-4 and 7-15, respectively. In RAW264.7 cells stimulated with LPS, Cox2 and Tnfα mRNA were over-expressed in the presence of TC. MC down-regulated only the expression of Cox2 by about 50% in LPS-stimulated cells. The anti-inflammatory activity determined on the basis of Cox2 inhibition declined in the order QU>RE>MC>TC. Upon application of VLI, only TC down-regulated the expression of LPS-stimulated Cox2 and Tnfα mRNA. After exposure to VLI, TC, but not MC, markedly up-regulated hemoxygenase-1 (Ho-1) expression. CONCLUSION TC is a chain-breaking antioxidant with a large kinh Upon activation by VLI, TC may undergo degradation and its degradation products affect pleiotropic mediators such as Cox2, Tnfα and Ho-1. TC may be useful as a local photodynamic therapy for periodontal diseases.
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Affiliation(s)
- Yukio Murakami
- Division of Oral Diagnosis and General Dentistry, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Sakado, Japan
| | - Akifumi Kawata
- Division of Oral Diagnosis and General Dentistry, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Sakado, Japan
| | - Seiji Suzuki
- Division of Oral Diagnosis and General Dentistry, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Sakado, Japan
| | - Seiichiro Fujisawa
- Division of Oral Diagnosis and General Dentistry, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Sakado, Japan
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Phaechamud T, Senarat S, Puyathorn N, Praphanwittaya P. Solvent exchange and drug release characteristics of doxycycline hyclate-loaded bleached shellac in situ-forming gel and -microparticle. Int J Biol Macromol 2019; 135:1261-1272. [DOI: 10.1016/j.ijbiomac.2018.11.098] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 11/12/2018] [Indexed: 12/13/2022]
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Antimicrobial Activity of an Amnion-Chorion Membrane to Oral Microbes. Int J Dent 2019; 2019:1269534. [PMID: 31379946 PMCID: PMC6657630 DOI: 10.1155/2019/1269534] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 06/09/2019] [Indexed: 01/18/2023] Open
Abstract
Objective The aim of this study was to evaluate wound biomodification by assessing antimicrobial properties present within a human-derived composite amnion-chorion membrane (ACM). Methods Membranes analyzed were the human-derived ACM BioXclude™ and the porcine-derived collagen membrane Bio-Gide®. Paper discs with and without tetracycline served as positive and negative controls, respectively. The same number of colony-forming units per milliliter for each bacterial species (Aggregatibacter actinomycetemcomitans, Streptococcus mutans, and Streptococcus oralis) was inoculated on each of the discs. Discs from each group were removed at 12 and 24 hours and sonicated to remove the bacteria off the membranes. A serial dilution was performed to quantify bacterial growth. Results The ACM inhibited growth at all time points, with all bacterial strains, identical to the negative control tetracycline discs. The collagen membrane and positive controls did not inhibit growth of any of the bacterial species throughout the 24-hour study period. P < 0.05 for microbial growth on ACM or negative control vs. either collagen membrane or positive control. Conclusion ACM was proven to be as bactericidal as paper discs inoculated with tetracycline at its minimum bactericidal concentration. The ACM bactericidal property may be beneficial in the early wound healing process.
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12
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El-Ela FIA, Farghali AA, Mahmoud RK, Mohamed NA, Moaty SAA. New Approach in Ulcer Prevention and Wound Healing Treatment using Doxycycline and Amoxicillin/LDH Nanocomposites. Sci Rep 2019; 9:6418. [PMID: 31015527 PMCID: PMC6478882 DOI: 10.1038/s41598-019-42842-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 02/07/2019] [Indexed: 01/24/2023] Open
Abstract
Doxycycline (DOX) and amoxicillin (AMOX) are important Broad-spectrum antibiotics used in treating multiple human and animal diseases. For the sake of exploring novel medical applications, both antibiotics were loaded into magnesium aluminium layer double hydroxide (Mg-Al)/LDH nanocomposite through the co-precipitation method. The synthesized materials were characterized by XRD, FT-IR, particle size analysis, FESEM and HRTEM. Acute toxicological studies were conducted using median lethal dose LD50, where a total number of 98 rats (200-150 gm) of both sexes were used. An experimental wound was aseptically incised on the anterior-dorsal side of each rat, while 98% of pure medical ethanol was used for ulcer induction. Acute toxicity, wound closure rate, healing percentages, ulcer index, protective rate and histopathological studies were investigated. Antibiotic Nanocomposites has significantly prevented ulcer formation and improved wound healing process to take shorter time than that of the typical processes, when compared with that of same drugs in microscale systems or commercial standard drugs. These results were confirmed by the histopathological findings. By converting it into the Nanoform, which is extremely important, especially with commonly used antibiotics, novel pharmacological properties were acquired from the antibiotics. The safe uses of DOX/LDH and AMOX/LDH Nanocomposites in this study were approved for biomedical applications.
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Affiliation(s)
- Fatma I Abo El-Ela
- Lecturer of Pharmacology, Department of Pharmacology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt.
| | - Ahmed A Farghali
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Sciences, Beni-Suef University, Beni-Suef, Egypt
| | - Rehab K Mahmoud
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Nada A Mohamed
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - S A Abdel Moaty
- Materials Science Lab, Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
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Lwin WW, Puyathorn N, Senarat S, Mahadlek J, Phaechamud T. Emerging role of polyethylene glycol on doxycycline hyclate-incorporated Eudragit RS in situ forming gel for periodontitis treatment. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2019. [DOI: 10.1007/s40005-019-00430-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Semyari H, Salehi M, Taleghani F, Ehterami A, Bastami F, Jalayer T, Semyari H, Hamed Nabavi M, Semyari H. Fabrication and characterization of collagen–hydroxyapatite-based composite scaffolds containing doxycycline via freeze-casting method for bone tissue engineering. J Biomater Appl 2018; 33:501-513. [DOI: 10.1177/0885328218805229] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In this study, hydroxyapatite nanoparticles containing 10% doxycycline, a structural isomer of tetracycline, was prepared by the co-precipitation method. It was added to collagen solution for the preparation of the scaffold with freeze-casting method in order to develop a composite scaffold with both antibacterial and osteoinductive properties for repairing bone defects. The scaffolds were evaluated regarding their morphology, porosity, degradation and cellular response. The scaffolds for further investigation were added in a rat calvaria defect model. The study showed that after eight weeks, the bone formation was relatively higher in the collagen/nano-hydroxyapatite/doxycycline group with completely filled defect when compared with other groups. Histopathological evaluation showed that the defect in the collagen/nano-hydroxyapatite/doxycycline group was fully replaced by the new bone and connective tissue. Our results provide evidence supporting the possible applicability of doxycycline-containing scaffolds for successful bone regeneration.
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Affiliation(s)
| | - Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
- Tissue Engineering and stem cells research center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Ferial Taleghani
- Department of Periodontology, Dental School, Shahed University, Tehran, Iran
| | - Arian Ehterami
- Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Farshid Bastami
- Dental research center, research institute of dental Science, school of dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Oral and maxillofacial surgery department, school of dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Hadis Semyari
- Dental student, faculty of dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Role of clove oil in solvent exchange-induced doxycycline hyclate-loaded Eudragit RS in situ forming gel. Asian J Pharm Sci 2017; 13:131-142. [PMID: 32104386 PMCID: PMC7032165 DOI: 10.1016/j.ajps.2017.09.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 08/21/2017] [Accepted: 09/19/2017] [Indexed: 01/09/2023] Open
Abstract
Role of clove oil (CO) in doxycycline hyclate (DH)-loaded Eudragit RS (ERS) in situ forming gel (ISG) was investigated. CO could solubilize ERS and increase the viscosity of ISG and also minimize DH burst release with sustainable DH release. ISGs comprising CO could expel through the 27-gauge needle and transform into matrix depot in simulated crevicular fluid. Antimicrobial activities against all test bacterias were increased when increasing CO and N-methyl pyrrolidone (NMP) ratio. DH-loaded ERS ISG comprising CO could be used as a local drug delivery system for periodontitis treatment.
Solvent exchange induced in situ forming gel (ISG) is the promising drug delivery system for periodontitis treatment owing to the prospect of maintaining an effective high drug level in the gingival crevicular fluid. In the present study, the influence of clove oil (CO) on the characteristics of doxycycline hyclate (DH)-loaded ISG comprising Eudragit RS (ERS) was investigated including viscosity/rheology, syringeability, in vitro gel formation/drug release, matrix formation/solvent diffusion and antimicrobial activities. CO could dissolve ERS and increase the viscosity of ISG and its hydrophobicity could also retard the diffusion of solvent and hinder the drug diffusion; thus, the minimization of burst effect and sustained drug release were achieved effectively. All the prepared ISGs comprising CO could expel through the 27-gauge needle for administration by injection and transform into matrix depot after exposure to the simulated gingival crevicular fluid. The antimicrobial activities against Staphylococcus aureus, Escherichia coli, Streptococcus mutans and Porphyromonas gingivalis were increased when the ratio of CO and N-methyl pyrrolidone (NMP) was decreased from 1:1 to 1:10 owing to higher diffusion of DH except that for C. albicans was increased as CO amount was higher. Therefore, CO could minimize the burst while prolonging the drug release of DH-loaded ERS ISG for use as a local drug delivery system for periodontitis treatment.
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Javed J, Zahir E. Thermodynamic studies of iron chelation with doxycycline in acidic medium. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2017. [DOI: 10.1134/s0036024417060115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Phaechamud T, Jantadee T, Mahadlek J, Charoensuksai P, Pichayakorn W. Characterization of Antimicrobial Agent Loaded Eudragit RS Solvent Exchange-Induced In Situ Forming Gels for Periodontitis Treatment. AAPS PharmSciTech 2017; 18:494-508. [PMID: 27116203 DOI: 10.1208/s12249-016-0534-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 04/13/2016] [Indexed: 11/30/2022] Open
Abstract
Eudragit RS (ERS), a quaternary polyacrylate positively charged polymer, exhibits a very low permeability and swells in aqueous media independently of pH without dissolving. Owing to its high solubility in N-methyl pyrrolidone (NMP), it was interesting to apply as polymer matrix for solvent-exchanged in situ forming gel. The aim of this research was to prepare in situ forming gels from ERS to deliver the antimicrobial agents (doxycycline hyclate, metronidazole, and benzoyl peroxide) for periodontitis treatment. They were evaluated for viscosity and rheology, gel formation, syringeability, drug release, and antimicrobial activities. The solvent exchange between NMP and an external aqueous simulated gingival crevicular fluid stimulated the dissolved ERS transforming into the opaque rigid gel. Antimicrobial agent loaded ERS systems exhibited Newtonian flow with acceptable syringeability. The higher-loaded ERS promoted the more prolongation of drug release because of the retardation of water diffusion into the precipitated matrix. Antimicrobial activities against Staphylococcus aureus, Escherichia coli, Candida albicans, Streptococcus mutans, and Porphyromonas gingivalis depended on type of drugs and test microorganisms. Doxycycline hyclate loaded ERS systems showed these activities greater than the others; however, all of them could inhibit all test microorganisms. Thus, the solvent exchange-induced in situ forming gels comprising ERS-antimicrobial drugs exhibited potential use as localized delivery systems for periodontitis treatment.
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Panith N, Assavanig A, Lertsiri S, Bergkvist M, Surarit R, Niamsiri N. Development of tunable biodegradable polyhydroxyalkanoates microspheres for controlled delivery of tetracycline for treating periodontal disease. J Appl Polym Sci 2016. [DOI: 10.1002/app.44128] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Nootchanartch Panith
- Department of Biotechnology Faculty of Science; Mahidol University; Bangkok 10400 Thailand
| | - Apinya Assavanig
- Department of Biotechnology Faculty of Science; Mahidol University; Bangkok 10400 Thailand
| | - Sittiwat Lertsiri
- Department of Biotechnology Faculty of Science; Mahidol University; Bangkok 10400 Thailand
| | - Magnus Bergkvist
- Colleges of Nanoscale Science and Engineering; SUNY Polytechnic Institute; Albany New York 12203
| | - Rudee Surarit
- Department of Oral Biology Faculty of Dentistry; Mahidol University; Bangkok 10400 Thailand
| | - Nuttawee Niamsiri
- Department of Biotechnology Faculty of Science; Mahidol University; Bangkok 10400 Thailand
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Buggapati L, Chava VK. Effect of combination of ethylenediaminetetraacetic acid + tetracycline with coronally positioned flap in the treatment of gingival recession: A clinical study. J Indian Soc Periodontol 2016; 20:57-62. [PMID: 27041839 PMCID: PMC4795136 DOI: 10.4103/0972-124x.168488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
CONTEXT Gingival recession is the apical migration of gingival margin results from destruction of the connective tissue leading to various esthetic problems. Many surgical procedures have been attempted to achieve root coverage that include free gingival grafts, pedicle flaps such as semilunar coronally repositioned flaps (SCRFs) and guided tissue regeneration. The exposed root surface has undergone substantial alterations and may no longer serve as an appropriate substrate for cell attachment and fiber development. When the denuded root surfaces are treated with biomodifiers following mechanical instrumentation, the resulting surface favors both the attachment of fibroblasts and new connective tissue attachment. It was then necessary to evaluate the surface characteristics of the acid demineralized root surface and its effect on periodontal wound healing. AIM To evaluate the effect of the combination of ethylenediaminetetraacetic acid (EDTA) and tetracycline as root bio-modifiers along with SCRF for root coverage. SETTINGS AND DESIGN Twenty subjects were randomly assigned into two groups as cases (SCRF + EDTA + tetracycline [TTC]) and controls (SCRF). MATERIALS AND METHODS Twenty-four percentage EDTA and 100 mg/ml TTC hydrochloride were used along with semilunar coronally positioned flap. The clinical parameters such as recession height, the width of keratinized tissue, recession width, clinical attachment level, probing depth, plaque index, and gingival index were recorded at baseline, 1 and 3 months. STATISTICAL ANALYSES USED The clinical parameters were compared using post-hoc test and the comparison between cases and controls was done using Mann-Whitney U-test. RESULTS No statistical significant difference has been observed between the groups. CONCLUSION It was concluded that no clinical benefit was observed after the application of a combination of 100 mg/ml TTC hydrochloride and 24% EDTA on the root surface.
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Affiliation(s)
- Lahari Buggapati
- Department of Periodontology, Government Dental College and Hospital, Vijayawada, Andhra Pradesh, India
| | - Vijay Kumar Chava
- Department of Periodontology, Narayana Dental College and Hospital, Nellore, Andhra Pradesh, India
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20
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Lu H, Liu Y, Guo J, Wu H, Wang J, Wu G. Biomaterials with Antibacterial and Osteoinductive Properties to Repair Infected Bone Defects. Int J Mol Sci 2016; 17:334. [PMID: 26950123 PMCID: PMC4813196 DOI: 10.3390/ijms17030334] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 02/23/2016] [Accepted: 02/29/2016] [Indexed: 12/16/2022] Open
Abstract
The repair of infected bone defects is still challenging in the fields of orthopedics, oral implantology and maxillofacial surgery. In these cases, the self-healing capacity of bone tissue can be significantly compromised by the large size of bone defects and the potential/active bacterial activity. Infected bone defects are conventionally treated by a systemic/local administration of antibiotics to control infection and a subsequent implantation of bone grafts, such as autografts and allografts. However, these treatment options are time-consuming and usually yield less optimal efficacy. To approach these problems, novel biomaterials with both antibacterial and osteoinductive properties have been developed. The antibacterial property can be conferred by antibiotics and other novel antibacterial biomaterials, such as silver nanoparticles. Bone morphogenetic proteins are used to functionalize the biomaterials with a potent osteoinductive property. By manipulating the carrying modes and release kinetics, these biomaterials are optimized to maximize their antibacterial and osteoinductive functions with minimized cytotoxicity. The findings, in the past decade, have shown a very promising application potential of the novel biomaterials with the dual functions in treating infected bone defects. In this review, we will summarize the current knowledge of novel biomaterials with both antibacterial and osteoinductive properties.
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Affiliation(s)
- Haiping Lu
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Yi Liu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, MOVE Research Institute, Amsterdam 1081LA, The Netherlands.
| | - Jing Guo
- School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Huiling Wu
- The First Affiliated Hospital, Medical School, Zhejiang University, Hangzhou 310003, China.
| | - Jingxiao Wang
- The First Affiliated Hospital, Wenzhou Medical University, Wenzhou 325000, China.
| | - Gang Wu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, MOVE Research Institute, Amsterdam 1081LA, The Netherlands.
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Ranjbar-Mohammadi M, Zamani M, Prabhakaran MP, Bahrami SH, Ramakrishna S. Electrospinning of PLGA/gum tragacanth nanofibers containing tetracycline hydrochloride for periodontal regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 58:521-31. [PMID: 26478340 DOI: 10.1016/j.msec.2015.08.066] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 08/23/2015] [Accepted: 08/27/2015] [Indexed: 12/19/2022]
Abstract
Controlled drug release is a process in which a predetermined amount of drug is released for longer period of time, ranging from days to months, in a controlled manner. In this study, novel drug delivery devices were fabricated via blend electrospinning and coaxial electrospinning using poly lactic glycolic acid (PLGA), gum tragacanth (GT) and tetracycline hydrochloride (TCH) as a hydrophilic model drug in different compositions and their performance as a drug carrier scaffold was evaluated. Scanning electron microscopy (SEM) results showed that fabricated PLGA, blend PLGA/GT and core shell PLGA/GT nanofibers had a smooth and bead-less morphology with the diameter ranging from 180 to 460 nm. Drug release studies showed that both the fraction of GT within blend nanofibers and the core-shell structure can effectively control TCH release rate from the nanofibrous membranes. By incorporation of TCH into core-shell nanofibers, drug release was sustained for 75 days with only 19% of burst release within the first 2h. The prolonged drug release, together with proven biocompatibility, antibacterial and mechanical properties of drug loaded core shell nanofibers make them a promising candidate to be used as drug delivery system for periodontal diseases.
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Affiliation(s)
| | - M Zamani
- Mechanical Engineering Department, National University of Singapore, Singapore; Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore, Singapore
| | - M P Prabhakaran
- Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore, Singapore.
| | - S Hajir Bahrami
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran.
| | - S Ramakrishna
- Mechanical Engineering Department, National University of Singapore, Singapore; Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore, Singapore
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Phaechamud T, Mahadlek J. Solvent exchange-induced in situ forming gel comprising ethyl cellulose-antimicrobial drugs. Int J Pharm 2015; 494:381-92. [PMID: 26302862 DOI: 10.1016/j.ijpharm.2015.08.047] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 07/02/2015] [Accepted: 08/17/2015] [Indexed: 11/27/2022]
Abstract
Solvent-exchanged in situ forming gel is a drug delivery system which is in sol form before administration. When it contacts with the body fluid, then the water miscible organic solvent dissipates and water penetrates into the system, leading the polymer precipitation as in situ gel at the site of injection. The aim of this research was to study the parameters affecting the gel properties, drug release and antimicrobial activities of the in situ forming gels prepared from ethyl cellulose (EC) dissolved in N-methyl pyrrolidone (NMP) to deliver the antimicrobial agents (doxycycline hyclate, metronidazole and benzyl peroxide) for periodontitis treatment. The gel appearance, pH, viscosity, rheology, syringeability, gel formation, rate of water diffusion into the gels, in vitro degradation, drug release behavior and antimicrobial activities against Staphylococcus aureus, Escherichia coli, Candida albicans, Streptococcus mutans and Porphyrommonas gingivalis were determined. Increasing the amount of EC increased the viscosity of system while still exhibiting Newtonian flow and increased the work of syringeability whereas decreased the releasing of drug. The system transformed into the rigid gel formation after being injected into the simulated gingival crevicular fluid. The developed systems containing 5% w/w antimicrobial agent showed the antimicrobial activities against all test bacteria. Thus the developed solvent exchange-induced in situ forming gels comprising EC-antimicrobial drugs exhibited potential use for periodontitis treatment.
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Affiliation(s)
- Thawatchai Phaechamud
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University, Nakorn Pathom 73000, Thailand.
| | - Jongjan Mahadlek
- Pharmaceutical Intelligence Unit Prachote Plengwittaya, Faculty of Pharmacy, Silpakorn University, Nakorn Pathom 73000, Thailand
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Chhina S, Rathore AS, Juneja S. Alpha-2-Macroglobulin Levels in Gingival Crevicular Fluid Pre- and Post-scaling and Root Planing with Adjunctive Tetracycline Fibers in Chronic Periodontitis: A Randomized Controlled Trial. J Contemp Dent Pract 2015; 16:474-8. [PMID: 26323451 DOI: 10.5005/jp-journals-10024-1709] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND This split-mouth clinical study aimed to investigate levels of alpha-2-macroglobulin (a2M) in gingival crevicular fluid (GCF) of chronic periodontitis patients pre- and post-scaling and root planing (SRP) with or without adjunctive use of tetracycline fibers. MATERIALS AND METHODS In 30 patients of chronic periodontitis, samples of GCF were collected from the gingival sulcus before SRP. Recording of clinical parameters was conducted. This was followed by local drug delivery (LDD) of tetracycline fibers in test sites. In control sites, no LDD was done. Second samples of GCF were taken 90 days after treatment. Samples of crevicular fluid were analyzed to determine the levels of a2m. RESULTS A gain of clinical attachment (CAL) of 3.30 mm for SRP and LDD and for SRP alone was 1.62 mm (p < 0.001). The pocket probing depth was significantly decreased by 2.43 mm for SRP and LDD and for SRP alone was 1.61 mm (p < 0.001) after 90 days. Alpha-2-macroglobulin was significantly reduced in GCF by SRP and SRP and LDD after 90 days (p < 0.001). CONCLUSION Clinical and biochemical variables showed a more favorable outcome when SRP was combined with LDD of tetracycline fibers in management of patients suffering from chronic periodontitis.
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Affiliation(s)
- Shivjot Chhina
- Professor, Department of Periodontics, ITS Dental College, Hospital and Research Centre, Greater Noida, Uttar Pradesh, India, Phone: 01204228389, e-mail:
| | - Ajit Singh Rathore
- Department of Oral and Maxillofacial Pathology, ITS Dental College, Muradnagar, Ghaziabad, Uttar Pradesh, India
| | - Saurabh Juneja
- Department of Oral and Maxillofacial Pathology, ITS Dental College, Muradnagar, Ghaziabad, Uttar Pradesh, India
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Zheng K, Bortuzzo JA, Liu Y, Li W, Pischetsrieder M, Roether J, Lu M, Boccaccini AR. Bio-templated bioactive glass particles with hierarchical macro-nano porous structure and drug delivery capability. Colloids Surf B Biointerfaces 2015; 135:825-832. [PMID: 25858191 DOI: 10.1016/j.colsurfb.2015.03.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Revised: 02/22/2015] [Accepted: 03/16/2015] [Indexed: 01/02/2023]
Abstract
Hierarchically porous bioactive glass particles (BGPs) were synthesized by a facile sol-gel process using pollen grains as the templates. The synthesized pollen-templated bioactive glass particles (PBGPs) exhibited dual macro-nano porous structure. The macro pores (∼ 1 μm) were inherited from the template of pollen grains while the nano pores (∼ 9.5 nm) were induced by the intrinsic mechanism of the sol-gel process. PBGPs possessed a high specific surface area (111.4m(2)/g) and pore volume (0.35 cm(3)/g). Hydroxyapatite (HA) formation on PBGPs was detected within 3 days after immersion in simulated body fluid (SBF). Due to their larger specific surface area and pore volume, PBGPs could be loaded with more tetracycline hydrochloride (TCH) than non-templated BGPs and conventional melt-derived 45S5 BGPs. In addition, PBGPs exhibited a low initial burst release (within 10% of the loaded amount) within 18 h and a sustained release with a two-stage release pattern for up to 6 days in phosphate buffered saline (PBS). The antibacterial assay confirmed that the TCH-loaded PBGPs could release TCH within 5 days, and the released TCH could reach the minimum inhibitory concentration (MIC) against Escherichia coli. MTT assay indicated that PBGPs showed non-cytotoxic effects toward human hepatocellular carcinoma (Hep G2) cells after co-culture for up to 72 h in vitro. These results showed that the biocompatible hierarchically macro-nano porous PBGPs are potential for bone regeneration and local drug delivery applications.
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Affiliation(s)
- Kai Zheng
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany
| | - Judith A Bortuzzo
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany
| | - Yufang Liu
- Food Chemistry Unit, Department of Chemistry and Pharmacy, Emil Fischer Center, University of Erlangen-Nuremberg, Schuhstr. 19, 91052 Erlangen, Germany
| | - Wei Li
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany
| | - Monika Pischetsrieder
- Food Chemistry Unit, Department of Chemistry and Pharmacy, Emil Fischer Center, University of Erlangen-Nuremberg, Schuhstr. 19, 91052 Erlangen, Germany
| | - Judith Roether
- Institute of Polymer Materials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen, Germany
| | - Miao Lu
- Department of Surgery, Klinikum rechts der Isar, Techenische Universitaet München, Ismaninger Str. 22, 81675 München, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany.
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Zia A, Andrabi SMUN, Bey A, Kumar A, Fatima Z. Endodontic irrigant as a root conditioning agent: An in vitro scanning electron microscopic study evaluating the ability of MTAD to remove smear layer from periodontally affected root surfaces. SINGAPORE DENTAL JOURNAL 2014; 35:47-52. [PMID: 25496585 DOI: 10.1016/j.sdj.2014.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 04/24/2014] [Accepted: 04/30/2014] [Indexed: 10/24/2022]
Abstract
BACKGROUND Instrumentation of the root surface, results in formation of a smear layer of organic and mineralized debris which serves as a physical barrier, inhibiting new connective tissue attachment to the root surface. The present study advocates the use of an endodontic irrigant MTAD (mixture of tetracycline, citric acid and detergent) as a root conditioning agent. The main aim of the study was to compare the root conditioning ability of an endodontic irrigant MTAD (mixture of tetracycline, acid and detergent) with 17% EDTA (ethylenediaminetetraacetic acid). MATERIALS AND METHODS Sixty freshly extracted human single rooted teeth with confirmed periodontal involvement were selected for this study and decoronated. The apical third of each root was removed and the remaining root was sectioned longitudinally to produce a 6mm to 8mm long tooth section. The root surface was then instrumented by hand using a sharp Gracey 1-2 periodontal curette with 6-8 strokes per area to achieve a smooth glass-like surface. A total of 60 specimens were prepared which were randomly divided into three groups (n=20). Each group received the root conditioning treatments as follows: All specimens were prepared for SEM and scored according to the presence of smear layer. RESULTS AND CONCLUSIONS MTAD removed the smear layer successfully from the root surfaces. The mean smear score for samples treated with Biopure MTAD was lower than those treated with EDTA, (p=0.04). MTAD can be used as a root conditioning agent with efficient smear layer removal ability and known antimicrobial and anticollagenase activity.
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Affiliation(s)
- Afaf Zia
- Dr. Z.A Dental College, Aligarh Muslim University, Aligarh, India
| | | | - Afshan Bey
- Dr. Z.A Dental College, Aligarh Muslim University, Aligarh, India
| | - Ashok Kumar
- Dr. Z.A Dental College, Aligarh Muslim University, Aligarh, India
| | - Zareen Fatima
- Dr. Z.A Dental College, Aligarh Muslim University, Aligarh, India
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Raval JP, Naik DR, Amin KA, Patel PS. Controlled-release and antibacterial studies of doxycycline-loaded poly(ε-caprolactone) microspheres. JOURNAL OF SAUDI CHEMICAL SOCIETY 2014. [DOI: 10.1016/j.jscs.2011.11.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Kassem AA, Ismail FA, Naggar VF, Aboulmagd E. Comparative study to investigate the effect of meloxicam or minocycline HCl in situ gel system on local treatment of periodontal pockets. AAPS PharmSciTech 2014; 15:1021-8. [PMID: 24831089 PMCID: PMC4113610 DOI: 10.1208/s12249-014-0118-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 03/31/2014] [Indexed: 11/30/2022] Open
Abstract
In situ gelling formulations allow easy application to the target area. Gelation is induced by physiological stimuli at the site of application where the formula attains semisolid properties and exerts sustained drug release. In situ gelling formulations containing either 3% meloxicam (Mx) or 2% minocycline HCl (MH) were prepared for local application into the periodontal pockets. Gel formulations were based on the thermosensitive Pluronic(®) (Pl) and the pH-sensitive Carbopol(®) (C) polymers. C gels were prepared in combination with HPMC (H) to decrease its acidity. The total percent drug released from Pl formulae was 21.72% after 1 week for Mx and 85% after 3 days for MH. Their release kinetics data indicated anomalous non-Fickian behavior that could be controlled by both diffusion and chain relaxation. Addition of MH to C/H gels (1:2.5) resulted in liquefaction, followed by drug precipitation. Regarding C/H gel containing Mx, it showed a prolonged release rate up to 7 days with an initial burst effect; the kinetics data revealed Fickian-diffusion mechanism. The in vitro antibacterial activity studies for MH gel in Pl revealed that the drug released exceeded the minimum inhibitory concentration (MIC) of MH against Staphylococcus aureus ATCC 6538; placebo gel showed no effect on the microorganism. Clinical evaluation of Pl gels containing either Mx or MH showed significant improvement in chronic periodontitis patients, manifested by decrease in pocket depth and gingival index and increase in bone density.
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Affiliation(s)
- Abeer Ahmed Kassem
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt,
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Gogoi N, Chowdhury D. Novel carbon dot coated alginate beads with superior stability, swelling and pH responsive drug delivery. J Mater Chem B 2014; 2:4089-4099. [PMID: 32261740 DOI: 10.1039/c3tb21835j] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel carbon dot coated alginate beads (CA-CD) exhibiting superior stability and swelling properties have been successfully prepared. CA-CD show exceptional stability in ambient condition and are stable at room atmosphere and temperature even after 60 days. Moreover, CA-CD show excessive swelling in comparison to calcium alginate (CA) beads. The beads were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and optical microscopy. The CA and CA-CD beads were investigated for their use as pH dependent sustained drug delivery vehicles taking tetracycline (TC) and tetracycline associated with β-cyclodextrin (β-TC) as model drug systems. It was observed that TC loading was 35% and 77% with CA and CA-CD, respectively. Tetracycline associated with β-cyclodextrin (β-TC) shows 48% loading for CA and much greater loading (as high as 90%) for CA-CD. At pH 1, CA-CD and CA beads show maximum drug release with TC cumulative release of 70% and 37% at 96 h, respectively. However, the delivery rates at pH 1 were slower in case of tetracycline associated with β-cyclodextrin (β-TC) loading showing 61% release for CA-CD and 22% for CA after 96 h. Thus, CA-CD can be suitably used as an effective drug delivery vehicle with maximum release obtained at pH 1 emphasizing its use in the gastrointestinal tract where pH is low. Also, the use of β-cyclodextrin with the drug as an inclusion complex renders the CA and CA-CD beads useful for slow and long-term drug administration.
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Affiliation(s)
- Neelam Gogoi
- Material Nanochemistry Laboratory, Physical Sciences Division, Institute of Advanced Study in Science and Technology (IASST), Paschim Boragaon, Garchuk, Guwahati - 781 035, Assam, India.
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Suárez DF, Consuegra J, Trajano VC, Gontijo SML, Guimarães PPG, Cortés ME, Denadai ÂL, Sinisterra RD. Structural and thermodynamic characterization of doxycycline/β-cyclodextrin supramolecular complex and its bacterial membrane interactions. Colloids Surf B Biointerfaces 2014; 118:194-201. [PMID: 24816509 DOI: 10.1016/j.colsurfb.2014.01.028] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 12/10/2013] [Accepted: 01/20/2014] [Indexed: 10/25/2022]
Abstract
Doxycycline is a semi-synthetic antibiotic commonly used for the treatment of many aerobic and anaerobic bacteria. It inhibits the activity of matrix metalloproteinases (MMPs) and affects cell proliferation. In this study, the structural and thermodynamic parameters of free DOX and a DOX/βCD complex were investigated, as well as their interactions and effects on Staphylococcus aureus cells and cellular cytotoxicity. Complexation of DOX and βCD was confirmed to be an enthalpy- and entropy-driven process, and a low equilibrium constant was obtained. Treatment of S. aureus with higher concentrations of DOX or DOX/βCD resulted in an exponential decrease in S. aureus cell size, as well as a gradual neutralization of zeta potential. These thermodynamic profiles suggest that ion-pairing and hydrogen bonding interactions occur between DOX and the membrane of S. aureus. In addition, the adhesion of βCD to the cell membrane via hydrogen bonding is hypothesized to mediate a synergistic effect which accounts for the higher activity of DOX/βCD against S. aureus compared to pure DOX. Lower cytotoxicity and induction of osteoblast proliferation was also associated with DOX/βCD compared with free DOX. These promising findings demonstrate the potential for DOX/βCD to mediate antimicrobial activity at lower concentrations, and provides a strategy for the development of other antimicrobial formulations.
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Affiliation(s)
- Diego F Suárez
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Pampulha, 31270-901, Belo Horizonte, MG, Brazil
| | - Jessika Consuegra
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Pampulha, 31270-901, Belo Horizonte, MG, Brazil
| | - Vivianne C Trajano
- Departamento de Odontologia Restauradora, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Pampulha, 31270-901, Belo Horizonte, MG, Brazil(1)
| | - Sávio M L Gontijo
- Departamento de Odontologia Restauradora, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Pampulha, 31270-901, Belo Horizonte, MG, Brazil(1)
| | - Pedro P G Guimarães
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Pampulha, 31270-901, Belo Horizonte, MG, Brazil
| | - Maria E Cortés
- Departamento de Odontologia Restauradora, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Pampulha, 31270-901, Belo Horizonte, MG, Brazil(1)
| | - Ângelo L Denadai
- Departamento de Farmácia, Universidade Federal de Juiz de Fora, UFJF, Campus Governador Valadares, MG. Av. Dr. Raimundo Monteiro de Rezende 330, Centro, 35010-177, Governador Valadares, MG, Brazil
| | - Rubén D Sinisterra
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Pampulha, 31270-901, Belo Horizonte, MG, Brazil.
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Kulkarni C, Kinane DF. Host response in aggressive periodontitis. Periodontol 2000 2014; 65:79-91. [DOI: 10.1111/prd.12017] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2012] [Indexed: 11/28/2022]
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Kassem AA, Ismail FA, Naggar VF, Aboulmagd E. Preparation and evaluation of periodontal films based onpolyelectrolyte complexformation. Pharm Dev Technol 2014; 20:297-305. [DOI: 10.3109/10837450.2013.862262] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Penmatsa T, Varma S, Mythili, Rao KP, Kishore T, Bindu H. Effect of various concentrations of tetracycline hydrochloride demineralization on root dentin surface: A scanning electron microscopic study. J Pharm Bioallied Sci 2013; 5:S48-53. [PMID: 23946576 PMCID: PMC3722705 DOI: 10.4103/0975-7406.113296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 05/04/2013] [Accepted: 05/04/2013] [Indexed: 11/16/2022] Open
Abstract
Introduction: Within the last 20 years root demineralization has attracted attention as a periodontal regenerative technique. Topical tetracycline application has been widely reported for use as a conditioner, to decontaminate the root surface and to promote periodontal regeneration. The purpose of this scanning electron microscopic (SEM) study is to evaluate the surface characteristics of demineralized diseased and non-diseased dentine root surfaces using different concentrations of tetracycline hydrochloride (TTC-HCl). Material and Methods: This SEM study was carried out in 20 dentin samples obtained from non-diseased human premolars and 20 dentin samples obtained from diseased human premolars. Pure TTC-HCl was applied to the dentin surface at 50 mg/ml, 100 mg/ml and 150 mg/ml concentrations for 3 min in experimental groups while distilled (0 mg/ml) water was applied to the control groups. Statistical Analysis: Mean and standard deviation were estimated from the sample for each study group. Mean values were compared by either one-way ANOVA with Tukey-Honestly significant difference procedure or Kruskal - Wallis one way ANOVA with Mann-Whitney u-test. Further Student′s independent t-test/Mann-Whitney u-test was used appropriately to compare the mean values between two independent groups. Results: In the present study using 100 mg/ml tetracycline seems to be more effective on both diseased and non-diseased dentin surfaces. Conclusions: The results of this study confirm that pure TTC-HCl conditioning produced comparable surface characteristics on dentin of both diseased and non-diseased roots with 100 mg/ml concentration for 3 min.
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Affiliation(s)
- Tanuja Penmatsa
- Department of Periodontics, Gitam Dental College and Hospital, Vishakhapatnam, Andhra Pradesh, India
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Gamal AY, Kumper RM, Al Gendy AERR. Doxycycline-Loaded β-Tricalcium Phosphate Release Following EDTA Root Surface Etching Improved the Clinical Outcomes in Chronic Periodontitis: An In Vivo Study. J Periodontol 2013; 84:924-33. [DOI: 10.1902/jop.2012.120343] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Gamal AY, Kumper RM. A Novel Approach to the Use of Doxycycline-Loaded Biodegradable Membrane and EDTA Root Surface Etching in Chronic Periodontitis: A Randomized Clinical Trial. J Periodontol 2012; 83:1086-94. [DOI: 10.1902/jop.2011.110476] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Dodwad V, Ahuja S, Kukreja BJ. Effect of locally delivered tetracycline hydrochloride as an adjunct to scaling and root planing on Hba1c, C-reactive protein, and lipid profile in type 2 diabetes: A clinico-biochemical study. Contemp Clin Dent 2012; 3:150-4. [PMID: 22919212 PMCID: PMC3425095 DOI: 10.4103/0976-237x.96816] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
AIM The aim was to assess the levels of HbA1c, C-reactive protein, and lipid profile in patients with type 2 diabetes mellitus by treating the pockets using collagen impregnated sustained release resorbable tetracycline fiber (periodontal plus AB fiber) following scaling and root planing (SRP). MATERIALS AND METHODS A total of 40 patients with type 2 diabetes mellitus were randomly distributed into two groups receiving either SRP and tetracycline fiber or SRP alone. Patients were evaluated clinically with gingival index, plaque index, probing depth, and relative attachment level, and bio-chemically with HbA1c, C Reactive Protein, and lipid profile at baseline, 1 month, and 3 months. RESULTS Significant reduction in all the clinical parameters was seen in the tetracycline group compared to the control group. Bio-chemical analysis also revealed similar results except for cholesterol and High density lipoprotein who did not show any significant reduction. CONCLUSION Locally delivered tetracycline as a better treatment modality compared to SRP alone.
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Affiliation(s)
- Vidya Dodwad
- Department of Periodontology, I.T.S Centre for Dental Studies and Research, Ghaziabad, Uttar Pradesh, India
| | - Sakshi Ahuja
- Department of Periodontology, I.T.S Centre for Dental Studies and Research, Ghaziabad, Uttar Pradesh, India
| | - Bhavna Jha Kukreja
- Department of Periodontology, I.T.S Centre for Dental Studies and Research, Ghaziabad, Uttar Pradesh, India
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Gautami PS, Ramaraju AV, GunaShekhar M. Adjunctive use of tetracycline fibers with nonsurgical periodontal therapy in an adult with Down syndrome: a case report. SPECIAL CARE IN DENTISTRY 2012; 32:61-5. [DOI: 10.1111/j.1754-4505.2012.00237.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Effects of Doxycycline, Minocycline, and Tetracycline on Cell Proliferation, Differentiation, and Protein Expression in Osteoprecursor Cells. J Craniofac Surg 2011; 22:1839-42. [DOI: 10.1097/scs.0b013e31822e8216] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Nagasawa T, Arai M, Togari A. Inhibitory effect of minocycline on osteoclastogenesis in mouse bone marrow cells. Arch Oral Biol 2011; 56:924-31. [DOI: 10.1016/j.archoralbio.2011.02.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Revised: 01/06/2011] [Accepted: 02/02/2011] [Indexed: 11/24/2022]
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39
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Park YB, Mohan K, Al-Sanousi A, Almaghrabi B, Genco RJ, Swihart MT, Dziak R. Synthesis and characterization of nanocrystalline calcium sulfate for use in osseous regeneration. Biomed Mater 2011; 6:055007. [PMID: 21873761 DOI: 10.1088/1748-6041/6/5/055007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Nanoparticles of calcium sulfate (nCS) have potential advantages as a ceramic matrix, scaffold and/or vehicle for delivering growth factors for osseous regeneration in a variety of clinical situations. The objectives of this study were to synthesize and characterize nanoparticles of hemihydrate calcium sulfate (nCS) and to develop a nCS-based system for bone regeneration. A cryo-vacuum method was used to process dihydrate CS into dihydrate nCS, which was then subjected to oven drying to produce hemihydrate. The nCS was sterilized by glow discharge treatment for use as a synthetic graft material for the treatment of bone defects. Electron microscopy showed that the nCS powder consisted of aggregates of closely arranged acicular crystals, approximately 30-80 nm in width, 400-600 nm in length and approximately 80-100 nm in diameter, providing a surface area about ten times that of conventional CS. Thorough physico-chemical characterization confirmed the composition and phase of the material. Cell viability/metabolic activity assays and alkaline phosphate assays confirmed the safety and biocompatibility of nCS. Release kinetics for adsorbed platelet-derived growth factor and bone morphogenetic protein-2 (BMP-2) suggests that nCS may serve as an appropriate vehicle for slow release delivery of these agents. The studies presented here give evidence of the advantages of nCS as a scaffold to support osteoblastic cell activity.
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Affiliation(s)
- Young Bum Park
- Yonsei University College of Dentistry, Seodaemun-gu, Seoul, Korea
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Incorporating chitosan (CS) and TPP into silk fibroin (SF) in fabricating spray-dried microparticles prolongs the release of a hydrophilic drug. J Taiwan Inst Chem Eng 2011. [DOI: 10.1016/j.jtice.2010.11.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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41
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de Sousa FO, Blanco-Méndez J, Pérez-Estévez A, Seoane-Prado R, Luzardo-Álvarez A. Effect of zein on biodegradable inserts for the delivery of tetracycline within periodontal pockets. J Biomater Appl 2011; 27:187-200. [DOI: 10.1177/0885328211398968] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Treatment with antibiotics within the periodontal pocket against bacterial infections represents a useful and adjunctive tool to conventional therapy for healing and teeth preservation. With this function in view, an implantable, tetracycline delivery device for the treatment of periodontal disease was developed. The aim of this study was to develop biodegradable, tetracycline-loaded microparticles made of two polymers: PLGA and zein which were compressed into monolithic devices. In this polymer delivery system, the encapsulation efficiency, release characteristics, drug–polymer interaction, and antibacterial activity of loaded drug were investigated. The interaction of tetracycline with the corn protein zein was studied by nuclear magnetic resonance (NMR), Fourier transform infrared, and X-ray diffraction. The hydrophobic interaction of tetracycline with zein in the formulations was deduced from the NMR studies, whereas X-ray diffraction studies showed a new crystalline state of the drug in the presence of the protein. Zein was not denatured by preparation of inserts. Sustained release of tetracycline was obtained, and the proportion of zein in the inserts had a great impact on the drug release. Finally, an effective tetracycline release from inserts against Staphylococcus aureus was achieved over 30 days. In conclusion, the PLGA:zein delivery system described in this study was found to be effective in controlled delivery of tetracycline, and hence may be suitable for intra-pocket delivery of antimicrobial agents in the treatment of periodontitis.
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Affiliation(s)
- Fábio Oliveira de Sousa
- The Capes Foundation, Ministry of Education of Brazil, Cx. Postal 365, Brasília DF 70359-970, Brazil
| | - Jose Blanco-Méndez
- Department of Pharmacy and Pharmaceutical Technology, School of Sciences, University of Santiago de Compostela, Avda. Alfonso X el Sabio s/n, 27002, Lugo, Spain
| | - Antonio Pérez-Estévez
- Departament of Microbiology and Parasitology, Medical School, University of Santiago de Compostela, R/ de San Francisco, s/n, 15782, Santiago de Compostela, Spain
| | - Rafael Seoane-Prado
- Departament of Microbiology and Parasitology, Medical School, University of Santiago de Compostela, R/ de San Francisco, s/n, 15782, Santiago de Compostela, Spain
| | - Asteria Luzardo-Álvarez
- Department of Pharmacy and Pharmaceutical Technology, School of Sciences, University of Santiago de Compostela, Avda. Alfonso X el Sabio s/n, 27002, Lugo, Spain
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Obaidat RM, Bader A, Al-Rajab W, Abu Sheikha G, Obaidat AA. Preparation of mucoadhesive oral patches containing tetracycline hydrochloride and carvacrol for treatment of local mouth bacterial infections and candidiasis. Sci Pharm 2011; 79:197-212. [PMID: 21617783 PMCID: PMC3097507 DOI: 10.3797/scipharm.1004-18] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2010] [Accepted: 12/13/2010] [Indexed: 11/22/2022] Open
Abstract
The specific aim of this work was to prepare mucoadhesive patches containing tetracycline hydrochloride and carvacrol in an attempt to develop a novel oral drug delivery system for the treatment of mouth infections. The bilayered patches were prepared using ethyl cellulose as a backing layer and carbopol 934 as a matrix mucoadhesive layer. Patches were prepared with different loading amounts of tetracycline hydrochloride and carvacrol. The antimicrobial activity was assessed for the prepared patches using the disc-diffusion method against the yeast Candida albicans and five bacterial strains, including Pseudomonas aeruginosa, Escherichia coli, Bacillus cereus, Staphylococcus aureus, and Bacillus bronchispti. In this work, we highlighted the possibility of occurrence of a synergistic action between carvacrol and tetracycline. The best formulation was selected based on microbiological tests, drug release, ex-vivo mucoadhesive performance, and swelling index. Physical characteristics of the selected formulations were determined. These included pH, patch thickness, weight uniformity, content uniformity, folding endurance, and patch stability.
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Affiliation(s)
- Rana M Obaidat
- Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan.
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Vanheusden A, Nusgens B, Goffinet G, Zahedi S, Lapidre CM, Rompen E. In vitro modulation of human gingival epithelial cell attachment and migration by minocycline-HCI. J Periodontal Res 2010. [DOI: 10.1111/j.1600-0765.1998.tb02333.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Feng K, Sun H, Bradley MA, Dupler EJ, Giannobile WV, Ma PX. Novel antibacterial nanofibrous PLLA scaffolds. J Control Release 2010; 146:363-9. [PMID: 20570700 DOI: 10.1016/j.jconrel.2010.05.035] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Revised: 05/19/2010] [Accepted: 05/31/2010] [Indexed: 11/25/2022]
Abstract
In order to achieve high local bioactivity and low systemic side effects of antibiotics in the treatment of dental, periodontal and bone infections, a localized and temporally controlled delivery system is crucial. In this study, a three-dimensional (3-D) porous tissue engineering scaffold was developed with the ability to release antibiotics in a controlled fashion for long-term inhibition of bacterial growth. The highly soluble antibiotic drug, doxycycline (DOXY), was successfully incorporated into PLGA nanospheres using a modified water-in-oil-in-oil (w/o/o) emulsion method. The PLGA nanospheres (NS) were then incorporated into prefabricated nanofibrous PLLA scaffolds with a well interconnected macro-porous structure. The release kinetics of DOXY from four different PLGA NS formulations on a PLLA scaffold was investigated. DOXY could be released from the NS-scaffolds in a locally and temporally controlled manner. The DOXY release is controlled by DOXY diffusion out of the NS and is strongly dependent upon the physical and chemical properties of the PLGA. While PLGA50-6.5K, PLGA50-64K, and PLGA75-113K NS-scaffolds discharge DOXY rapidly with a high initial burst release, PLGA85-142K NS-scaffold can extend the release of DOXY to longer than 6weeks with a low initial burst release. Compared to NS alone, the NS incorporated on a 3-D scaffold had significantly reduced the initial burst release. In vitro antibacterial tests of PLGA85 NS-scaffold demonstrated its ability to inhibit common bacterial growth (S. aureus and E. coli) for a prolonged duration. The successful incorporation of DOXY onto 3-D scaffolds and its controlled release from scaffolds extends the usage of nano-fibrous scaffolds from the delivery of large molecules such as growth factors to the delivery of small hydrophilic drugs, allowing for a broader application and a more complex tissue engineering strategy.
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Affiliation(s)
- Kai Feng
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI 48109, USA
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45
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Almazin SM, Dziak R, Andreana S, Ciancio SG. The effect of doxycycline hyclate, chlorhexidine gluconate, and minocycline hydrochloride on osteoblastic proliferation and differentiation in vitro. J Periodontol 2009; 80:999-1005. [PMID: 19485832 DOI: 10.1902/jop.2009.080574] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The purpose of this study was to determine the effect of the active substance of three types of local delivery systems, doxycycline hyclate 10% (DOXY), chlorhexidine gluconate, 2.5 mg (CHX), and minocycline hydrochloride, 1 mg (MINO), on osteoblastic cell proliferation and differentiation. METHODS There were four groups: control osteoblastic cells (OB) alone, OB + DOXY, OB + CHX, and OB + MINO. Trypan blue and MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assays were used to test osteoblastic cell viability. Cell differentiation was tested by measuring alkaline phosphatase levels. Osteoblast morphology was investigated by light and scanning electron microscopy. RESULTS At a concentration of 0.5 mg/ml, the Trypan blue test showed that DOXY, MINO, and CHX had significant toxicity effects on osteoblast cells compared to the control group, with a mean cell viability of 84%, 74%, and 51%, respectively (P <0.05). The MTT test showed that the control and DOXY groups were statistically significantly different (P <0.05) compared to CHX and MINO groups. The DOXY group showed a significantly higher alkaline phosphatase activity ( approximately 56%) than the control and MINO groups, and it was nearly 178% higher than the CHX group (P <0.05). The morphology of the osteoblasts seemed to be slightly altered when they were incubated with DOXY; however, with MINO, they appeared rounded with minimal attachment. In the CHX group, the osteoblasts assumed a shape of a very thin filopodia with a volcano-like nucleus. CONCLUSIONS At a concentration of 0.5 mg/ml, CHX and, to a lesser extent, MINO had a cytotoxic effect on osteoblast proliferation in vitro. However, DOXY seemed to enhance maturation and differentiation rather than proliferation. In addition to DOXY's beneficial effect as an adjunctive therapy to mechanical debridement in the treatment of periodontal disease, it may have an effect on periodontal regeneration.
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Affiliation(s)
- Salah M Almazin
- Department of Periodontics, Alamiri Dental Center, Sharq, State of Kuwait.
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Rodrigues Filho G, Toledo LC, Da Silva LG, De Assunção RMN, Meireles CDS, Cerqueira DA, Ruggiero R. Membranes of cellulose triacetate produced from sugarcane bagasse cellulose as alternative matrices for doxycycline incorporation. J Appl Polym Sci 2009. [DOI: 10.1002/app.30270] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Cazalis J, Tanabe SI, Gagnon G, Sorsa T, Grenier D. Tetracyclines and chemically modified tetracycline-3 (CMT-3) modulate cytokine secretion by lipopolysaccharide-stimulated whole blood. Inflammation 2009; 32:130-7. [PMID: 19238528 DOI: 10.1007/s10753-009-9111-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
In addition to their bacteriostatic effect, tetracyclines, which are often used in the treatment of periodontitis, also present anti-inflammatory properties. In the present study, we investigated the effects of tetracycline (TC), doxycycline (doxy), and chemically modified tetracycline-3 (CMT-3) on the production of pro-inflammatory mediators and matrix metalloproteinases (MMPs) in an ex vivo human whole blood (WB) model stimulated with Porphyromonas gingivalis lipopolysaccharide (LPS). WB samples obtained from three periodontitis patients and six healthy subjects were stimulated with P. gingivalis LPS in the absence and presence of TC, doxy, or CMT-3. The secretion of interleukin-1beta (IL-1beta), interleukin-6 (IL-6), interleukin-8 (IL-8), MMP-8, and MMP-9 by the WB samples was determined using enzyme-linked immunosorbent assays. P. gingivalis LPS significantly increased the secretion of all cytokines and MMPs tested. While we observed inter-patient variations, TC, doxy, and CMT-3 caused reductions of LPS-induced cytokine secretion to various degrees. TC, doxy, and CMT-3 had no significant effect on MMP-8 and MMP-9 secretion by LPS-stimulated WB samples. In conclusion, we used a human WB model that takes into consideration relevant in vivo immune cell interactions in the presence of plasma proteins to show that TC, doxy, and CMT-3 can reduce the production of pro-inflammatory mediators. This property may contribute to the clinically proven benefits of these molecules in the treatment of periodontitis and other chronic inflammatory diseases.
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Affiliation(s)
- Julia Cazalis
- Groupe de Recherche en Ecologie Buccale, Faculté de Médecine Dentaire, Université Laval, Quebec City, Quebec, G1K 7P4, Canada
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Soares PBF, Menezes HHMD, Naves MDM, Taga EM, Magalhães DD. Effect of absorbent tetracycline-loaded membrane used in the reduction of periodontal pockets: an in vivo study. Braz Dent J 2009; 20:414-8. [DOI: 10.1590/s0103-64402009000500010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2009] [Accepted: 09/15/2009] [Indexed: 11/22/2022] Open
Abstract
This clinical study evaluated the influence of scaling and root planning (SRP), with and without the use of tetracycline-loaded bovine absorbent membrane, in the reduction of periodontal pockets according to 3 parameters: probing pocket depth (PPD), bleeding on probing (BOP) and plaque index (PI). Twenty-four patients were selected totalizing 144 random teeth divided in 2 groups (n=72 teeth) - control (SRP) and experimental (SRP with tetracycline-loaded absorbent membrane). PPD, BOP and PI were determined before and 28 days after the treatment. In all patients, the PPD values at the end of the treatment were always lower than the baseline values. There was a reduction of the PI for both treatments, but it was more evident on the experimental group. In conclusion, the use of tetracycline-loaded absorbent membrane could result in a better prognosis compared to scaling and root planning after only 28 days of evaluation.
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Liu DZ, Chen WP, Lee CP, Wu SL, Wang YC, Chung TW. Effects of alginate coated on PLGA microspheres for delivery tetracycline hydrochloride to periodontal pockets. J Microencapsul 2008; 21:643-52. [PMID: 15762321 DOI: 10.1080/02652040400000512] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The effects of alginate coated on tetracycline (Tc) loaded poly (D, L-lactic-co-glycolic acid) (PLGA) microspheres fabricated by double emulsion solvent evaporation technique for local delivery to periodontal pocket were investigated. Alginate coated PLGA microspheres showed smoother surface but enlarged their particle sizes compared with those of uncoated ones. In addition, alginate coated microspheres enhanced Tc encapsulation efficiency (E.E.) from 11.5 +/- 0.5% of uncoated ones to 17.9 +/- 0.5%. Moreover, all of the coated PLGA microspheres even fabricated at different conditions could prolong Tc release from 9-12 days with 50% or higher in cumulative release of Tc compared with those of uncoated ones. The swelling ratios of PLGA microspheres for alginate coated or uncoated ones, one of the possible mechanisms for enhancing Tc release for the coated ones, were measured. The results showed that 20% or higher in swelling ratio for the coated microspheres at the earlier stage of hydration (e.g. < or = 24 h) could be an important factor to result in high Tc release compared to the uncoated ones. In conclusion, alginate coated Tc loaded PLGA microspheres could enhance Tc delivery to periodontal pocket by enhancing drug encapsulated efficiency, released quantities and sustained release period compared with uncoated ones.
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Affiliation(s)
- D Z Liu
- Graduate Institute of Biomedical Materials, Taipei Medical University, Taipei, Taiwan, ROC
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Cazalis J, Bodet C, Gagnon G, Grenier D. Doxycycline Reduces Lipopolysaccharide-Induced Inflammatory Mediator Secretion in Macrophage and Ex Vivo Human Whole Blood Models. J Periodontol 2008; 79:1762-8. [DOI: 10.1902/jop.2008.080051] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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