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In Vitro and In Vivo Anti-Inflammatory Effects of TEES-10®, a Mixture of Ethanol Extracts of Ligularia stenocephala Matsum. & Koidz. and Secale cereale L. Sprout, on Gingivitis and Periodontitis. Dent J (Basel) 2022; 10:dj10080143. [PMID: 36005241 PMCID: PMC9406350 DOI: 10.3390/dj10080143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/13/2022] [Accepted: 07/26/2022] [Indexed: 11/25/2022] Open
Abstract
Gingivitis and periodontitis are inflammatory disorders caused by dental plaque and calculus. These disorders often lead to tooth loss if not treated properly. Although antibiotics can be used, it is hard to treat them due to the difficulty in supplying effective doses of antibiotics to lesion areas and side effects associated with long-term use of antibiotics. In the present study, attempts were made to provide in vitro and in vivo evidence to support anti-inflammatory activities of TEES-10®, a mixture of ethanol extracts of Ligularia stenocephala (LSE) and Secale cereale L. sprout (SCSE) toward gingivitis and periodontitis by performing the following experiments. TEES-10® with a ratio of 6:4 (LSE:SCSE) showed the best effects in both stimulating the viability and inhibiting the cytotoxicity. In in vitro experiments, TEES-10® showed an ability to scavenge 2,2-diphenyl-1-picrylhydrazyl and superoxide radicals and remove ROS generated in periodontal ligament cells treated with lipopolysaccharide. TEES-10® also enhanced the viability of stem cells from human exfoliated deciduous teeth and stimulated the osteogenic differentiation of deciduous teeth cells. In in vivo experiments using rats with induced periodontitis, TEES-10® significantly decreased inflammatory cell infiltration and the numbers of osteoclasts, increased alveolar process volume and the numbers of osteoblasts, decreased serum levels of IL-1β and TNF-α (pro-inflammatory cytokines), and increased serum levels of IL-10 and IL-13 (anti-inflammatory cytokines). These results strongly support the theory that TEES-10® has the potential to be developed as a health functional food that can treat and prevent gingival and periodontal diseases and improve dental health.
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Choi Y, Park E, Kim S, Ha J, Oh H, Kim Y, Lee Y, Seo Y, Kang J, Lee S, Lee H, Yoon Y, Choi KH. Fermented milk with Lactobacillus curvatus SMFM2016-NK alleviates periodontal and gut inflammation, and alters oral and gut microbiota. J Dairy Sci 2021; 104:5197-5207. [PMID: 33685682 DOI: 10.3168/jds.2020-19625] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/09/2021] [Indexed: 11/19/2022]
Abstract
This study aimed to analyze the effect of milk fermented with Lactobacillus curvatus SMFM2016-NK on periodontal diseases and gut health in a rat model. To improve the effect of Lb. curvatus SMFM2016-NK-fermented milk administration for relieving periodontitis, the periodontitis rat models were treated with the following for 4 wk: 10% skim milk (normal), periodontitis + 10% skim milk (negative control), periodontitis + Lactobacillus rhamnosus GG-fermented milk (positive control), and periodontitis + Lb. curvatus SMFM2016-NK-fermented milk (PD+LCFM). Transcriptional analysis of inflammatory cytokines [tumor necrosis factor α (TNF-α), IL-1β, IL-6, and IL-10] was performed via quantitative reverse-transcription PCR. The changes in the oral and gut microbiomes after administering Lb. curvatus SMFM2016-NK-fermented milk were analyzed with metagenomics sequencing using DNA extracted from the oral gingival tissues and feces from the cecum of the rat models. After treatment with Lb. curvatus SMFM2016-NK-fermented milk, the relative gene expression levels of TNFA and IL1B in the gingiva decreased in the PD+LCFM group compared with those in the negative control group. In the oral microbiome, the proportion of the phylum Proteobacteria in the PD+LCFM group was lower than that in the negative control after treatment with Lb. curvatus SMFM2016-NK-fermented milk. For the effect in the gut, the relative gene expression levels of inflammatory cytokines in the colon between the normal and negative control groups were not different; however, the expression levels of TNFA and IL1B in the PD+LCFM and positive control groups, respectively, were lower than those in the negative control group. The composition and diversity of the gut microbiome differed among normal, periodontitis, and Lb. curvatus SMFM2016-NK-fermented milk treatment groups. These results indicate that Lb. curvatus SMFM2016-NK-fermented milk could alleviate periodontal and gut inflammation and change oral and gut microbiota.
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Affiliation(s)
- Y Choi
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - E Park
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - S Kim
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - J Ha
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - H Oh
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Y Kim
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Y Lee
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Y Seo
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - J Kang
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - S Lee
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - H Lee
- Food Standard Research Center, Korea Food Research Institute, Jeollabuk-do 55365, Korea
| | - Y Yoon
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea; Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea.
| | - K-H Choi
- Department of Oral Microbiology, College of Dentistry, Wonkwang University, Iksan 54538, Korea.
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ELMALI OM, ENİNANÇ İ, YELER D, HEPOKUR C, ÜNAL Y, YELER H. A Study On The Use Of Different Materials Combined With Allograft On Osseointegration And Bone Regeneration Of Dental Implants With Coronal Defects In A Rabbit Model. CUMHURIYET DENTAL JOURNAL 2020. [DOI: 10.7126/cumudj.712055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Wang Y, Wang H, Wang H, Zhang M, Liang X, Xia K, Zhang Y. Calcium Gluconate Derived Carbon Nanosheet Intrinsically Decorated with Nanopapillae for Multifunctional Printed Flexible Electronics. ACS APPLIED MATERIALS & INTERFACES 2019; 11:20272-20280. [PMID: 31083901 DOI: 10.1021/acsami.9b04060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
With the blooming of wearable technology, developing active materials that can be printed on a large scale has been attracting great attention. Particularly, there are abundant genius structure designs in nature that are endowed with superior performance, inspiring the design of materials for high-performance wearables. Herein, we report the controllable preparation of bionic carbon nanosheets decorated with in situ formed nanoparticles (NP-CNS) through the pyrolysis of calcium gluconate (CG), which are further used for printing high-performance humidity/pressure/strain sensors. The transformation from CG to NP-CNS had been studied in detail. Interestingly, papillae-like CaO NPs are formed on the carbon nanosheets, endowing NP-CNS with good dispersion in inks and rapid response to external stimuli. Particularly, the printed humidity sensor possesses a fast response time (1.7 s) and a broad detection range (0-96% RH), increasing from the high hydroscopicity of the CaO NPs and the thus induced expansion of the NP-CNS. Besides, the strain sensor and pressure sensor also show high sensitivity and broad detection range, which is derived from the unique bionic structure of the NP-CNS. We further showed their excellent performance in monitoring of pulse wave, breath, and human motion, indicating the wide potential applications of the bionic NP-CNS in smart wearables.
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Affiliation(s)
- Yiliang Wang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry and Center for Nano and Micro Mechanics , Tsinghua University , Beijing 100084 , P. R. China
| | - Haomin Wang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry and Center for Nano and Micro Mechanics , Tsinghua University , Beijing 100084 , P. R. China
| | - Huimin Wang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry and Center for Nano and Micro Mechanics , Tsinghua University , Beijing 100084 , P. R. China
| | - Mingchao Zhang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry and Center for Nano and Micro Mechanics , Tsinghua University , Beijing 100084 , P. R. China
| | - Xiaoping Liang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry and Center for Nano and Micro Mechanics , Tsinghua University , Beijing 100084 , P. R. China
| | - Kailun Xia
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry and Center for Nano and Micro Mechanics , Tsinghua University , Beijing 100084 , P. R. China
| | - Yingying Zhang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Department of Chemistry and Center for Nano and Micro Mechanics , Tsinghua University , Beijing 100084 , P. R. China
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Kang SJ, Lee EK, Han CH, Lee BH, Lee YJ, Ku SK. Inhibitory effects of Persicariae Rhizoma aqueous extracts on experimental periodontitis and alveolar bone loss in Sprague-Dawley rats. Exp Ther Med 2016; 12:1563-1571. [PMID: 27588077 DOI: 10.3892/etm.2016.3499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 06/14/2016] [Indexed: 12/17/2022] Open
Abstract
Persicariae Rhizoma (PR) is the dried stem parts of Persicaria tinctoria H. Gross (Polygonaceae), and has been traditionally used as anti-inflammatory and detoxifying agent. In the present study, the effects of PR aqueous extracts on ligation-induced experimental periodontitis (EPD) and associated alveolar bone loss in rats were examined. Following the induction of EPD in rats, PR extracts were orally administered once a day for 10 days, and the changes and gains in body weight, alveolar bone loss and total aerobic bacterial counts of buccal gingiva were observed with histopathological analysis. In addition, anti-inflammatory effects were evaluated by monitoring myeloperoxidase (MPO) activities, and interleukin (IL)-1β and tumor necrosis factor (TNF)-α contents, and anti-oxidant effects were investigated by measuring inducible nitric oxide synthase (iNOS) activities and malondialdehyde (MDA) levels. Bacterial proliferation, periodontitis and associated alveolar bone loss induced by ligature placement were significantly and dose-dependently inhibited by the treatment with PR extracts. The inhibitory effects of 200 mg/kg PR were similar to those of 5 mg/kg indomethacin on ligation-induced periodontitis and associated alveolar bone losses in this study. The results suggest that PR effectively inhibits ligature placement-induced periodontitis and alveolar bone loss in rats via antibacterial, antioxidative and anti-inflammatory activities.
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Affiliation(s)
- Su Jin Kang
- The Medical Research Center for Globalization of Herbal Formulation, Daegu Haany University, Gyeongsan, Gyeongbuk 38610, Republic of Korea; Department of Preventive Medicine, College of Korean Medicine, Daegu Haany University, Gyeongsan, Gyeongbuk 38610, Republic of Korea
| | - Eun Kyung Lee
- The Medical Research Center for Globalization of Herbal Formulation, Daegu Haany University, Gyeongsan, Gyeongbuk 38610, Republic of Korea; Department of Preventive Medicine, College of Korean Medicine, Daegu Haany University, Gyeongsan, Gyeongbuk 38610, Republic of Korea
| | - Chang Hyun Han
- Department of Medical History and Literature, Korean Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Bong Hyo Lee
- The Medical Research Center for Globalization of Herbal Formulation, Daegu Haany University, Gyeongsan, Gyeongbuk 38610, Republic of Korea; Department of Acupuncture, Moxibustion and Acupoint, College of Korean Medicine, Daegu Haany University, Gyeongsan, Gyeongbuk 38610, Republic of Korea
| | - Young Joon Lee
- The Medical Research Center for Globalization of Herbal Formulation, Daegu Haany University, Gyeongsan, Gyeongbuk 38610, Republic of Korea; Department of Preventive Medicine, College of Korean Medicine, Daegu Haany University, Gyeongsan, Gyeongbuk 38610, Republic of Korea
| | - Sae Kwang Ku
- The Medical Research Center for Globalization of Herbal Formulation, Daegu Haany University, Gyeongsan, Gyeongbuk 38610, Republic of Korea; Department of Anatomy and Histology, College of Korean Medicine, Daegu Haany University, Gyeongsan, Gyeongbuk 38610, Republic of Korea
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The Effects of Topical Application of Polycal (a 2:98 (g/g) Mixture of Polycan and Calcium Gluconate) on Experimental Periodontitis and Alveolar Bone Loss in Rats. Molecules 2016; 21:527. [PMID: 27110759 PMCID: PMC6274269 DOI: 10.3390/molecules21040527] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 04/08/2016] [Accepted: 04/18/2016] [Indexed: 11/23/2022] Open
Abstract
The aim of this study was to observe whether Polycal has inhibitory activity on ligation-induced experimental periodontitis and related alveolar bone loss in rats following topical application to the gingival regions. One day after the ligation placements, Polycal (50, 25, and 12.5 mg/mL solutions at 200 μL/rat) was topically applied to the ligated gingival regions daily for 10 days. Changes in bodyweight, alveolar bone loss index, and total number of buccal gingival aerobic bacterial cells were monitored, and the anti-inflammatory effects were investigated via myeloperoxidase activity and levels of the pro-inflammatory cytokines IL-1β and TNF-α. The activities of inducible nitric oxide synthase (iNOS) and lipid peroxidation (MDA) were also evaluated. Bacterial proliferation, periodontitis, and alveolar bone loss induced by ligature placements were significantly inhibited after 10 days of continuous topical application of Polycal. These results indicate that topical application of Polycal has a significant inhibitory effect on periodontitis and related alveolar bone loss in rats mediated by antibacterial, anti-inflammatory, and anti-oxidative activities.
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Srivastava M, Neupane YR, Kumar P, Kohli K. Nanoemulgel (NEG) of Ketoprofen with eugenol as oil phase for the treatment of ligature-induced experimental periodontitis in Wistar rats. Drug Deliv 2014; 23:2228-2234. [PMID: 25259423 DOI: 10.3109/10717544.2014.958625] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
AIM The aim of the novel study was to check the efficacy of a locally applied 2%w/w nanoemulgel (NEG) of Ketoprofen (KP) in preventing the periodontitis, and was also checked NEG without KP to ensure the effect of eugenol in NEG as an oil phase. DESIGN For experimentally induced periodontitis, sterile silk ligatures (3/0) were placed around the crevices of the first left lower molar teeth of the male Wistar rats. During 8 weeks, all rats were fed with 10%w/v sucrose solution. The experimental assessment was carried out at 11 d after treatment of experimental periodontal disease (EPD) rats by various clinical parameters like gingival index (GI), tooth mobility (TM), alveolar bone loss (ABL), histological analysis, detection of TNF-α, and IL-1β in gingival tissue by ELISA and the roughness were measured by atomic force microscopy (AFM) in tapping modes. RESULTS After treatment, comparison studies with EPD were performed. NEG loaded with KP prevents significantly (p < 0.05) various parameters (GI, TM, and ABL), which were responsible for periodontitis. The histopathology of the periodontium showed that Group 3 (NEG loaded with KP) had a more significant reduction in inflammatory cell infiltration, alveolar bones resorption, and cementum (p < 0.05). In the topographical images, significant reduction in roughness of NEG loaded with KP was observed in comparison with EPD without treatment. CONCLUSION The study revealed the great synergistic potential of the combined NEG of an anti-inflammatory drug KP along with eugenol as the oil phase, which have potential antibacterial, analgesic, and anesthetic properties to combat periodontal disease.
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Affiliation(s)
| | | | - Parveen Kumar
- b Department of Pharmacology , Faculty of Pharmacy, Jamia Hamdard (Hamdard University) , Hamdard Nagar , New Delhi , India
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Gonzalez OA, Novak MJ, Kirakodu S, Orraca L, Chen KC, Stromberg A, Gonzalez-Martinez J, Ebersole JL. Comparative analysis of gingival tissue antigen presentation pathways in ageing and periodontitis. J Clin Periodontol 2014; 41:327-39. [PMID: 24304139 DOI: 10.1111/jcpe.12212] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/28/2013] [Indexed: 01/10/2023]
Abstract
AIM Gingival tissues of periodontitis lesions contribute to local elevations in mediators, including both specific T cell and antibody immune responses to oral bacterial antigens. Thus, antigen processing and presentation activities must exist in these tissues to link antigen-presenting cells with adaptive immunity. We hypothesized that alterations in the transcriptome of antigen processing and presentation genes occur in ageing gingival tissues and that periodontitis enhances these differences reflecting tissues less capable of immune resistance to oral pathogens. MATERIALS AND METHODS Rhesus monkeys (n = 34) from 3 to 23 years of age were examined. A buccal gingival sample from healthy or periodontitis sites was obtained, total RNA isolated, and microarray analysis was used to describe the transcriptome. RESULTS The results demonstrated increased transcription of genes related to the MHC class II and negative regulation of NK cells with ageing in healthy gingival tissues. In contrast, both adult and ageing periodontitis tissues showed decreased transcription of genes for MHC class II antigens, coincident with up-regulation of MHC class I-associated genes. CONCLUSION These transcriptional changes suggest a response of healthy ageing tissues through the class II pathway (i.e. endocytosed antigens) and altered responses in periodontitis that could reflect host-associated self-antigens or targeting cytosolic intracellular microbial pathogens.
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Affiliation(s)
- Octavio A Gonzalez
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, USA
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Chandra RV, Srinivas G, Reddy AA, Reddy BH, Reddy C, Nagarajan S, Naveen A. Locally delivered antioxidant gel as an adjunct to nonsurgical therapy improves measures of oxidative stress and periodontal disease. J Periodontal Implant Sci 2013; 43:121-9. [PMID: 23837126 PMCID: PMC3701833 DOI: 10.5051/jpis.2013.43.3.121] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Accepted: 06/04/2013] [Indexed: 12/14/2022] Open
Abstract
Purpose The present study has two aims; firstly, it attempts to verify the presence of oxidative stress by estimating the reactive oxygen species (ROS) levels in periodontal pockets ≥5 mm as compared to controls. The second aim is to evaluate the effect of lycopene as a locally delivered antioxidant gel on periodontal health and on the gingival crevicular fluid (GCF) levels of 8-hydroxydeoxyguanosine (8-OHdG), a marker of oxidative injury. Methods Thirty-one subjects participated in this study. In the pretreatment phase, the ROS levels in pockets ≥5 mm were measured by flow cytometry. Three sites in each subject were randomly assigned into each of the following experimental groups: sham group, only scaling and root planing (SRP) was done; placebo group, local delivery of placebo gel after SRP; and lycopene group, local delivery of lycopene gel after SRP. Clinical parameters included recording site-specific measures of GCF 8-OHdG, plaque, gingivitis, probing depth, and clinical attachment level. Results The gel, when delivered to the sites with oxidative stress, was effective in increasing clinical attachment and in reducing gingival inflammation, probing depth, and 8-OHdG levels as compared to the placebo and sham sites. Conclusions From this trial conducted over a period of 6 months, it was found that locally delivered lycopene seems to be effective in reducing the measures of oxidative stress and periodontal disease.
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Goes P, Melo IM, Silva LMCM, Benevides NMB, Alencar NMN, Ribeiro RA, Lima V. Low-dose combination of alendronate and atorvastatin reduces ligature-induced alveolar bone loss in rats. J Periodontal Res 2013; 49:45-54. [DOI: 10.1111/jre.12077] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2013] [Indexed: 01/21/2023]
Affiliation(s)
- P. Goes
- Department of Clinical Dentistry; Federal University of Ceará; Fortaleza, Ceará Brazil
| | - I. M. Melo
- Department of Clinical Dentistry; Federal University of Ceará; Fortaleza, Ceará Brazil
| | - L. M. C. M. Silva
- Department of Biochemical and Molecular Biology; Federal University of Ceará; Fortaleza, Ceará Brazil
| | - N. M. B. Benevides
- Department of Biochemical and Molecular Biology; Federal University of Ceará; Fortaleza, Ceará Brazil
| | - N. M. N. Alencar
- Department of Physiology and Pharmacology; Federal University of Ceará; Fortaleza Ceará Brazil
| | - R. A. Ribeiro
- Department of Physiology and Pharmacology; Federal University of Ceará; Fortaleza Ceará Brazil
| | - V. Lima
- Department of Physiology and Pharmacology; Federal University of Ceará; Fortaleza Ceará Brazil
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Li H, Xie H, Fu M, Li W, Guo B, Ding Y, Wang Q. 25-hydroxyvitamin D3 ameliorates periodontitis by modulating the expression of inflammation-associated factors in diabetic mice. Steroids 2013; 78:115-20. [PMID: 23138030 DOI: 10.1016/j.steroids.2012.10.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 10/18/2012] [Accepted: 10/26/2012] [Indexed: 11/21/2022]
Abstract
Periodontitis is a complication of diabetes mellitus, and the two diseases are highly associated with the dysfunction of inflammatory mediators. 25-hydroxyvitamin D(3) (25(OH)D(3)) plays a pivotal role in inflammatory modulation, but little is known about its effects on the progression of diabetic periodontitis and the underlying mechanism. In this paper, we showed that 25(OH)D(3) ameliorated experimental periodontitis in diabetic mice. The intraperitoneal administration of 25(OH)D(3) to streptozotocin-induced diabetic mice reduced fasting glucose and serum TNF-α levels, leading to decreased alveolar bone loss. Western blot analyses of gingival epithelia showed that vitamin D receptor (VDR) and protein tyrosine phosphatase N2 (PTPN2) were upregulated, while the expression of NF-κB and the phosphorylation of Janus family kinase 1 (JAK1) were attenuated upon 25(OH)D(3) treatment. These data may provide an explanation for the therapeutic benefits and anti-inflammatory effects of 25(OH)D(3). Our findings should have important implications for the clinical therapy of diabetic periodontitis.
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Affiliation(s)
- Hao Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
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Ozdemir H, Kara MI, Erciyas K, Ozer H, Ay S. Preventive effects of thymoquinone in a rat periodontitis model: a morphometric and histopathological study. J Periodontal Res 2011; 47:74-80. [PMID: 21992581 DOI: 10.1111/j.1600-0765.2011.01406.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND OBJECTIVE Thymoquinone has a variety of pharmacologic properties, including antihistaminic, antibacterial, antihypertensive, hypoglycemic, anti-inflammatory and anti-oxidative activities. Through its anti-inflammatory and antioxidant properties, thymoquinone may play an important role in preventing periodontal diseases. The aim of this study was to evaluate the effectiveness of thymoquinone in preventing the initiation and progression of periodontitis in a rat periodontitis model. MATERIAL AND METHODS Twenty-four rats were randomly divided into three experimental groups: a nonligated (NL) treatment group (n = 8), a ligature-only (LO) treatment group (n = 8) and a ligature plus thymoquinone (10 mg/kg, daily for 11 d) (TQ) treatment group. In order to induce experimental periodontitis, a 4/0 silk suture was placed at the gingival margin of the right-mandibular first molars of the rats. Thymoquinone was administered by gastric feeding until the animals were killed on day 11. Changes in the alveolar bone levels of rats in each group were measured clinically, and tissues of rats in each group were examined histopathologically to determine inflammatory cell infiltration (ICI), osteoblast and osteoclast activities, and osteoclast morphology. RESULTS Alveolar bone loss around the mandibular molar tooth was significantly higher in the LO group compared with NL and TQ groups (p < 0.05). The ratio of the presence of ICI and osteoclast numbers was significantly higher in the LO group than in the NL and TQ groups (p < 0.05). Osteoblastic activity was significantly lower in the LO group than in the NL and TQ groups (p < 0.05). CONCLUSION The present study showed that the oral administration of thymoquinone diminishes alveolar bone resorption in a rat periodontitis model.
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Affiliation(s)
- H Ozdemir
- Department of Periodontology, Faculty of Dentistry, Cumhuriyet University, Sivas, Turkey.
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