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Doğan B, Kemer Doğan ES. The Effects of Omega‐3 Supplementation on Serum Oxidative Stress Parameters in Experimental Periodontitis in an Animal Model. EUR J LIPID SCI TECH 2021. [DOI: 10.1002/ejlt.202100102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Burak Doğan
- Department of Periodontology, Faculty of Dentistry Hatay Mustafa Kemal University Hatay 31001 Turkey
| | - Esra Sinem Kemer Doğan
- Department of Periodontology, Faculty of Dentistry Hatay Mustafa Kemal University Hatay 31001 Turkey
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Fernandes LC, Santos AG, Sampaio TB, Sborgi S, Prediger R, Ferro MM, Franco G, Lipinski L, Miyoshi E. Exposure to paraquat associated with periodontal disease causes motor damage and neurochemical changes in rats. Hum Exp Toxicol 2020; 40:81-89. [PMID: 32748713 DOI: 10.1177/0960327120938851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Exposure to paraquat is possibly involved with the development of several conditions, including neurodegenerative diseases, such as Parkinson's disease (PD). This condition is mainly characterized by the loss of dopaminergic neurons in the nigrostriatal pathway and the development of classical motor symptoms. Etiology includes exposure to environmental factors, such as the paraquat exposure, and inflammatory diseases may exacerbate paraquat neurotoxicity. The aim of the study was to investigate whether the exposure to paraquat associated with the presence of periodontal disease is able to induce motor and biochemical changes in rats similar to that observed in PD. Adult male Wistar rats were sent to ligature. After 48 h, they were sent to daily treatment paraquat (1 mg/kg/day; 2 mL/kg; intragastric) or vehicle for 4 weeks. Twenty-four hours after the last administration, the open field test was performed. The rats were euthanized and the left hemimandibles and striatum were dissected for the analysis of dopaminergic and inflammatory markers. Only the combination of periodontal disease model plus paraquat exposure induced motor impairments. Remarkably, the paraquat exposure increased the ligature-induced alveolar bone loss in hemimandibles. Moreover, only the combination of periodontal disease and paraquat exposure induced the loss of dopaminergic neurons and astrocyte activation in the striatum.
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Affiliation(s)
- L C Fernandes
- 549253Department of Pharmaceutical Sciences, State University of Ponta Grossa (UEPG), Ponta Grossa, PR, Brazil
| | - A G Santos
- 549253Department of Pharmaceutical Sciences, State University of Ponta Grossa (UEPG), Ponta Grossa, PR, Brazil
| | - T B Sampaio
- Department of Pharmacology, 28117Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - Sms Sborgi
- 549253Department of Pharmaceutical Sciences, State University of Ponta Grossa (UEPG), Ponta Grossa, PR, Brazil
| | - Rds Prediger
- Department of Pharmacology, 28117Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - M M Ferro
- Department of Biology, 67883State University of Ponta Grossa (UEPG), Ponta Grossa, PR, Brazil
| | - Gcn Franco
- Department of Odontology, 67883State University of Ponta Grossa (UEPG), Ponta Grossa, PR, Brazil
| | - L Lipinski
- Department of Medicine, 67883State University of Ponta Grossa (UEPG), Ponta Grossa, PR, Brazil
| | - E Miyoshi
- 549253Department of Pharmaceutical Sciences, State University of Ponta Grossa (UEPG), Ponta Grossa, PR, Brazil
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TOKER H, YUCE HBALCI, YILDIRIM A, TEKİN MB, GEVREK F. The effect of colchicine on alveolar bone loss in ligature-induced periodontitis. Braz Oral Res 2019; 33:e001. [DOI: 10.1590/1807-3107bor-2019.vol33.0001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 11/12/2018] [Indexed: 12/16/2022] Open
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de Souza DM, Rodrigues VA, Silva ADA, Gonsalves VS, Pereira KA, Nishioka RS, de Carvalho C. Influence of different alcohol intake frequencies on alveolar bone loss in adult rats: A sem study. J Clin Exp Dent 2018; 10:e852-e857. [PMID: 30386516 PMCID: PMC6203929 DOI: 10.4317/jced.54647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Accepted: 07/18/2018] [Indexed: 11/05/2022] Open
Abstract
Background Alcohol intake is associated with oral diseases and bone changes including alveolar bone loss in humans and in experimental animals. The main aim of the present study is to assess the effect of long-term alcohol intake, at different frequencies, on periodontal bone loss (PBL) in adult rats. Material and Methods Thirty-six (36) rats were divided into 3 groups: Control (daily water intake, n=12), daily alcohol intake (20% ethanol, n=12), and social alcohol intake (20% ethanol twice a week, n=12). The rats were sacrificed after 90 days and their right maxillae were removed. Initially, a random portion from each group was analyzed through SEM (scanning electron microscope) to assess surface topography. Next, all pieces were dissected and stained with methylene blue 1% and photographed in stereomicroscope at 10x magnification. The PBL was assessed by measuring the distance between cement-enamel junction and alveolar bone crest. Results Results showed higher (p=0.0368) alcohol solution amount in the daily intake group than in the twice week intake one. The SEM showed qualitatively flat bone surface in the control group, the social intake group presented surface with few minor hollows, and the daily intake group evidenced increased number and diameter of wells. The comparison between groups showed higher bone loss (p<0.05) in both frequencies than in the control, but the bone loss was lower (p<0.05) in the social alcohol intake group than in the daily intake one. Conclusions Alcohol intake may cause alveolar bone loss in periodontitis-free rats depending on the frequency. Key words:Alcohol intake, alveolar bone loss, alcohol-induced periodontitis, alcoholic rats.
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Affiliation(s)
- Daniela-Martins de Souza
- DDs, MSc, PhD, Professor, College of Pindamonhangaba, Christian Life University Foundation-FUNVIC. Addres: Rua Marechal Deodoro da Fonseca, 316 - Centro, Pindamonhangaba, São Paulo, Brazil
| | - Vinicius-Anéas Rodrigues
- DDs, MSc, PhD, Professor, College of Pindamonhangaba, Christian Life University Foundation-FUNVIC. Addres: Rua Marechal Deodoro da Fonseca, 316 - Centro, Pindamonhangaba, São Paulo, Brazil
| | - Alan-de Aquino Silva
- DDs, College of Pindamonhangaba, Christian Life University Foundation-FUNVIC. Addres: Rua Marechal Deodoro da Fonseca, 316 - Centro, Pindamonhangaba, São Paulo, Brazil
| | - Vitor-Sulz Gonsalves
- DDs, College of Pindamonhangaba, Christian Life University Foundation-FUNVIC. Addres: Rua Marechal Deodoro da Fonseca, 316 - Centro, Pindamonhangaba, São Paulo, Brazil
| | - Kauê-Alberto Pereira
- DDs, College of Pindamonhangaba, Christian Life University Foundation-FUNVIC. Addres: Rua Marechal Deodoro da Fonseca, 316 - Centro, Pindamonhangaba, São Paulo, Brazil
| | - Renato-Sussumu Nishioka
- DDs, MSc, PhD, Adjunct Professor, Department of Dental Materials and Proshodontics, São Paulo State University (Unesp), Institute of Science and Technology, Institute of Science and Technology, São José dos Campos / SP, Brazil. Address: Av Engenheiro Francisco José Longo, 777, Jardim São Dimas, São José dos Campos, São Paulo, Brazil
| | - Claudemir de Carvalho
- MSc, PhD, Professor, College of Pindamonhangaba, Christian Life University Foundation-FUNVIC. Addres: Rua Marechal Deodoro da Fonseca, 316 - Centro, Pindamonhangaba, São Paulo, Brazil
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Wang X, Wang W, Li W, Niu Z, Wang Q, Zhang D, Li H, Wang J. Evaluation of the efficacy of Hylotelephium purpureum gel in the treatment of experimental periodontitis. Biomed Rep 2018. [PMID: 29541459 DOI: 10.3892/br.2018.1065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Local drug delivery systems have been proposed for the treatment of periodontitis, and Hylotelephium purpureum may be a suitable agent for use in such a system. The present study aimed to formulate a Hylotelephium purpureum gel (HPG) and evaluate the anti-inflammatory activity and antinociceptive effects of Hylotelephium purpureum and to assess the duration of action and efficacy of HPG in the treatment of experimental periodontitis in a KM mouse model. First, an acute toxicity study was performed, and secondly, xylene-induced mouse-ear edema, acetic acid-induced mouse peritoneal capillary permeability and carrageenan-induced hind-paw edema tests were used to investigate the anti-inflammatory activity of the gel. The acetic acid-induced writhing response and hot-plate tests were used to evaluate the antinociceptive activity. The therapeutic effects of HPG in experimental periodontitis were evaluated and minimum inhibitory concentration of the gel was determined. The results showed that intragastrically administration of 80 ml/kg of HPG produced no toxic effects. There were statistically significant changes in gingival indexes and sulcus bleeding indexes in the high-dose HPG-treated group. The serum levels of superoxide dismutase and glutathione peroxidase were significantly heightened, while the level of malondialdehyde was decreased. HPG exhibited 32.7% inhibition of edema, and altered the peritoneal capillary permeability in mice. The gel had relatively good bacteriostatic and bactericidal effects. It also exhibited antinociceptive activity, as demonstrated by the acetic acid-induced writhing response test and hot-plate test. In summary, the present study demonstrates that HPG is effective in the treatment of experimental periodontitis.
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Affiliation(s)
- Xiaofeng Wang
- Department of Stomatology, China Japan Union Hospital, Jilin University, Changchun, Jilin 13033, P.R. China
| | - Wei Wang
- Department of Stomatology, China Japan Union Hospital, Jilin University, Changchun, Jilin 13033, P.R. China
| | - Wei Li
- Academy of Traditional Chinese Medicine, Changchun, Jilin 130021, P.R. China
| | - Zhiduo Niu
- Academy of Traditional Chinese Medicine, Changchun, Jilin 130021, P.R. China
| | - Qing Wang
- Academy of Traditional Chinese Medicine, Changchun, Jilin 130021, P.R. China
| | - Dianwen Zhang
- Academy of Traditional Chinese Medicine, Changchun, Jilin 130021, P.R. China
| | - Hui Li
- Department of Stomatology, China Japan Union Hospital, Jilin University, Changchun, Jilin 13033, P.R. China
| | - Jincheng Wang
- Orthopedic Department, Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
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Souza Filho MD, Medeiros JV, Vasconcelos DF, Silva DA, Leódido AC, Fernandes HF, Silva FR, França LF, Lenardo D, Pinto GR. Orabase formulation with cashew gum polysaccharide decreases inflammatory and bone loss hallmarks in experimental periodontitis. Int J Biol Macromol 2018; 107:1093-1101. [DOI: 10.1016/j.ijbiomac.2017.09.087] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 09/16/2017] [Accepted: 09/21/2017] [Indexed: 01/14/2023]
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Campi P, Herrera BS, de Jesus FN, Napolitano M, Teixeira SA, Maia-Dantas A, Spolidorio LC, Akamine EH, Mayer MPA, de Carvalho MHC, Costa SKP, Muscara MN. Endothelial dysfunction in rats with ligature-induced periodontitis: Participation of nitric oxide and cycloxygenase-2-derived products. Arch Oral Biol 2015; 63:66-74. [PMID: 26691575 DOI: 10.1016/j.archoralbio.2015.11.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 11/06/2015] [Accepted: 11/29/2015] [Indexed: 01/04/2023]
Abstract
OBJECTIVES Considering the evident relationship between periodontitis and cardiovascular diseases in humans, we aimed to study the in vitro vascular reactivity of aorta rings prepared from rats with ligature-induced periodontitis. METHODS Seven days after the induction of unilateral periodontitis, the animals were euthanised; rings were prepared from the descending abdominal aortas and mounted in tissue baths for the in vitro measurement of the isometric force responses to norepinephrine (NE) and acetylcholine (ACh), as well as in the presence of inhibitors of nitric oxide synthase (NOS) and cycloxygenase (COX) isoenzymes. Aortic COX and NOS gene expressions were analysed by RT-PCR, as well as protein COX-2 expression by Western blot. RESULTS Periodontitis resulted in significant alveolar bone loss and did not affect arterial pressure. However, both NE-induced contraction and ACh-induced relaxation were significantly decreased and related to the presence of endothelium. Diminished eNOS and augmented COX-2 and iNOS expressions were found in the aortas from rats with periodontitis, and the pharmacological inhibition of COX-2 or iNOS improved the observed vasomotor deficiencies. CONCLUSIONS We can thus conclude that periodontitis induces significant endothelial dysfunction in rat aorta which is characterized by decreased eNOS expression and mediated by upregulated iNOS and COX-2 products.
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Affiliation(s)
- Paula Campi
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Bruno Schneider Herrera
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil; Department of Physiology and Pathology, Araraquara School of Dentistry, Sao Paulo State University, Araraquara, SP, Brazil
| | - Flavia Neto de Jesus
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Mauro Napolitano
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Simone Aparecida Teixeira
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Aline Maia-Dantas
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Luis Carlos Spolidorio
- Department of Physiology and Pathology, Araraquara School of Dentistry, Sao Paulo State University, Araraquara, SP, Brazil
| | - Eliana Hiromi Akamine
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Marcia Pinto Alves Mayer
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | | | - Soraia Katia Pereira Costa
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Marcelo Nicolas Muscara
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil.
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Ren Y, Han X, Ho SP, Harris SE, Cao Z, Economides AN, Qin C, Ke H, Liu M, Feng JQ. Removal of SOST or blocking its product sclerostin rescues defects in the periodontitis mouse model. FASEB J 2015; 29:2702-11. [PMID: 25757567 DOI: 10.1096/fj.14-265496] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 02/19/2015] [Indexed: 02/05/2023]
Abstract
Understanding periodontal ligament (PDL) biology and developing an effective treatment for bone and PDL damage due to periodontitis have been long-standing aims in dental medicine. Here, we first demonstrated by cell lineage tracing and mineral double-labeling approaches that murine PDL progenitor cells display a 2- and 3-fold higher mineral deposition rate than the periosteum and endosteum at the age of 4 weeks, respectively. We next proved that the pathologic changes in osteocytes (Ocys; changes from a spindle shape to round shape with a >50% reduction in the dendrite number/length, and an increase in SOST) are the key pathologic factors responsible for bone and PDL damage in periostin-null mice (a periodontitis animal model) using a newly developed 3-dimensional FITC-Imaris technique. Importantly, we proved that deleting the Sost gene (a potent inhibitor of WNT signaling) or blocking sclerostin function by using the mAb in this periodontitis model significantly restores bone and PDL defects (n = 4-5; P < 0.05). Together, identification of the key contribution of the PDL in normal alveolar bone formation, the pathologic changes of the Ocys in periodontitis bone loss, and the novel link between sclerostin and Wnt signaling in the PDL will aid future drug development in the treatment of patients with periodontitis.
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Affiliation(s)
- Yinshi Ren
- *Department of Biomedical Sciences, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China; Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, San Francisco, California, USA; Department of Periodontics, University of Texas Health Science Center, San Antonio, San Antonio, Texas, USA; The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Regeneron Pharmaceuticals, Tarrytown, New York, USA; and Department of Metabolic Disorders, Amgen Incorporated, Thousand Oaks, California, USA
| | - Xianglong Han
- *Department of Biomedical Sciences, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China; Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, San Francisco, California, USA; Department of Periodontics, University of Texas Health Science Center, San Antonio, San Antonio, Texas, USA; The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Regeneron Pharmaceuticals, Tarrytown, New York, USA; and Department of Metabolic Disorders, Amgen Incorporated, Thousand Oaks, California, USA
| | - Sunita P Ho
- *Department of Biomedical Sciences, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China; Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, San Francisco, California, USA; Department of Periodontics, University of Texas Health Science Center, San Antonio, San Antonio, Texas, USA; The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Regeneron Pharmaceuticals, Tarrytown, New York, USA; and Department of Metabolic Disorders, Amgen Incorporated, Thousand Oaks, California, USA
| | - Stephen E Harris
- *Department of Biomedical Sciences, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China; Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, San Francisco, California, USA; Department of Periodontics, University of Texas Health Science Center, San Antonio, San Antonio, Texas, USA; The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Regeneron Pharmaceuticals, Tarrytown, New York, USA; and Department of Metabolic Disorders, Amgen Incorporated, Thousand Oaks, California, USA
| | - Zhengguo Cao
- *Department of Biomedical Sciences, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China; Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, San Francisco, California, USA; Department of Periodontics, University of Texas Health Science Center, San Antonio, San Antonio, Texas, USA; The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Regeneron Pharmaceuticals, Tarrytown, New York, USA; and Department of Metabolic Disorders, Amgen Incorporated, Thousand Oaks, California, USA
| | - Aris N Economides
- *Department of Biomedical Sciences, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China; Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, San Francisco, California, USA; Department of Periodontics, University of Texas Health Science Center, San Antonio, San Antonio, Texas, USA; The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Regeneron Pharmaceuticals, Tarrytown, New York, USA; and Department of Metabolic Disorders, Amgen Incorporated, Thousand Oaks, California, USA
| | - Chunlin Qin
- *Department of Biomedical Sciences, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China; Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, San Francisco, California, USA; Department of Periodontics, University of Texas Health Science Center, San Antonio, San Antonio, Texas, USA; The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Regeneron Pharmaceuticals, Tarrytown, New York, USA; and Department of Metabolic Disorders, Amgen Incorporated, Thousand Oaks, California, USA
| | - Huazhu Ke
- *Department of Biomedical Sciences, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China; Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, San Francisco, California, USA; Department of Periodontics, University of Texas Health Science Center, San Antonio, San Antonio, Texas, USA; The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Regeneron Pharmaceuticals, Tarrytown, New York, USA; and Department of Metabolic Disorders, Amgen Incorporated, Thousand Oaks, California, USA
| | - Min Liu
- *Department of Biomedical Sciences, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China; Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, San Francisco, California, USA; Department of Periodontics, University of Texas Health Science Center, San Antonio, San Antonio, Texas, USA; The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Regeneron Pharmaceuticals, Tarrytown, New York, USA; and Department of Metabolic Disorders, Amgen Incorporated, Thousand Oaks, California, USA
| | - Jian Q Feng
- *Department of Biomedical Sciences, Texas A&M University Baylor College of Dentistry, Dallas, Texas, USA; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China; Department of Preventive and Restorative Dental Sciences, University of California, San Francisco, San Francisco, California, USA; Department of Periodontics, University of Texas Health Science Center, San Antonio, San Antonio, Texas, USA; The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Regeneron Pharmaceuticals, Tarrytown, New York, USA; and Department of Metabolic Disorders, Amgen Incorporated, Thousand Oaks, California, USA
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Hosadurga RR, Rao SN, Edavanputhalath R, Jose J, Rompicharla NC, Shakil M, Raju S. Evaluation of the efficacy of 2% Ocimum sanctum gel in the treatment of experimental periodontitis. Int J Pharm Investig 2015; 5:35-42. [PMID: 25599031 PMCID: PMC4286833 DOI: 10.4103/2230-973x.147231] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Introduction: One of the options for the treatment of periodontitis is local drug delivery systems (LDD). Tulsi (Ocimum sanctum), a traditional herb, has many uses in medicine. It could be a suitable agent as LDD for the treatment of periodontitis. Aim: The aim was to formulate, evaluate the anti-inflammatory activity; assess duration of the action and the efficacy of 2% tulsi (O. sanctum) gel in the treatment of experimental periodontitis in Wistar Albino rat model. Settings and Design: Thirty six Wistar albino rats were randomly assigned to 3 groups. Periodontitis was induced using ligature model. Group 1-control; Group 2-Plain gel and Group 3-2% tulsi (O. sanctum) gel. Materials and Methods: 2% tulsi (O. sanctum) gel were prepared. The anti-inflammatory activity and duration of action were assessed. Silk ligature 5-0 was used to induce periodontitis. Gingival index (GI) and probing pocket depth were measured. Treatment was done. The rats were sacrificed. Morphometric analysis was done using Stereomicroscope and ImageJ software. Statistical Analysis Used: ANOVA followed by Bonferroni's test, Wilcoxon's test for intergroup comparison, Mann-Whitney test for P value computation was used. The observations are mean ± standard deviation and standard error of the mean. P < 0.01 as compared to control was considered as statistically significant. Results: 2% tulsi (O. sanctum) gel showed 33.66% inhibition of edema and peak activity was noted at 24 h. There was statistically significant change in the GI and probing pocket depth. Morphometric analysis did not show any significant difference between groups. No toxic effects were seen on oral administration of 2000 mg/kg of Tulsi extract. Conclusions: 2% tulsi (O. sanctum) gel was effective in the treatment of experimental periodontitis.
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Affiliation(s)
| | | | | | - Jobin Jose
- Department of Pharmaceutics, NGSM Institute of Pharmaceutical Sciences, Mangalore, India
| | | | - Moidin Shakil
- Department of Oral and Maxillofacial Pathology, Yenepoya Dental College, Mangalore, India
| | - Shashidhara Raju
- Department of Oral and Maxillofacial Pathology, Coorg Institute of Dental Sciences, Karnataka, India
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Hosadurga RR, Rao SN, Jose J, Rompicharla NC, Shakil M, Shashidhara R. Evaluation of the efficacy of 2% curcumin gel in the treatment of experimental periodontitis. Pharmacognosy Res 2014; 6:326-33. [PMID: 25276071 PMCID: PMC4166822 DOI: 10.4103/0974-8490.138287] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 06/04/2014] [Accepted: 08/06/2014] [Indexed: 11/04/2022] Open
Abstract
CONTEXT Local drug delivery (LDD) systems have been proposed for the treatment of periodontitis. Curcumin could be a suitable agent as LDD for the treatment of periodontitis. AIM To formulate, evaluate the anti-inflammatory activity and to assess the duration of the action and the efficacy of 2% curcumin gel in the treatment of experimental periodontitis in Wistar albino rat model. SETTINGS AND DESIGN Twenty-one Wistar albino rats were randomly assigned to three groups. Periodontitis was induced using ligature model. Group 1: Control; group 2: Plain gel, and group 3: 2% curcumin gel. MATERIALS AND METHODS About 2% curcumin gel was prepared. The anti-inflammatory activity and duration of action was assessed. Silk ligature 5-0 was used to induce periodontitis. Gingival index (GI) and probing pocket depth (PPD) were measured. Treatment was done. The rats were sacrificed. Morphometric analysis was performed using stereomicroscope and ImageJ software. STATISTICAL ANALYSIS USED Analysis of variance followed by Bonferroni's test, Wilcoxon's test for inter-group comparison, Mann-Whitney test for P value computation was used. The observations are mean ± standard deviation and standard error of the mean. P < 0.01 when compared to control was considered as statistically significant. RESULTS About 2% curcumin gel showed 42.98% inhibition of edema and peak activity was noted at 24 h. There was statistically significant change in the GI and PPD. Morphometric analysis did not show any significant difference between groups. No toxic effects were seen on oral administration of 2000 mg/kg of curcumin. CONCLUSIONS About 2% curcumin gel was effective in the treatment of experimental periodontitis.
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Affiliation(s)
- Rajesh Ramesh Hosadurga
- Departments of Periodontics, Yenepoya Dental College, Yenepoya University, Mangalore, Karnataka, India
| | - S N Rao
- Department of Pharmacology, Yenepoya Dental College, Yenepoya University, Mangalore, Karnataka, India
| | - Jobin Jose
- Department of Pharmaceutics, NGSM Institute of Pharmaceutical Sciences, Paneer, Deralakatte, Mangalore, Karnataka, India
| | - Narayana Charyulu Rompicharla
- Department of Pharmaceutics, NGSM Institute of Pharmaceutical Sciences, Paneer, Deralakatte, Mangalore, Karnataka, India
| | - Moidin Shakil
- Department of Oral and Maxillofacial Pathology, Yenepoya Dental College, Yenepoya University, Mangalore, Karnataka, India
| | - R Shashidhara
- Department of Oral and Maxillofacial Pathology, Coorg Institute of Dental Sciences, Maggula, Virajpet, Karnataka, India
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A novel chemically modified curcumin reduces severity of experimental periodontal disease in rats: initial observations. Mediators Inflamm 2014; 2014:959471. [PMID: 25104884 PMCID: PMC4101223 DOI: 10.1155/2014/959471] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 05/01/2014] [Accepted: 05/19/2014] [Indexed: 12/24/2022] Open
Abstract
Tetracycline-based matrix metalloproteinase- (MMP-) inhibitors are currently approved for two inflammatory diseases, periodontitis and rosacea. The current study addresses the therapeutic potential of a novel pleiotropic MMP-inhibitor not based on an antibiotic. To induce experimental periodontitis, endotoxin (LPS) was repeatedly injected into the gingiva of rats on one side of the maxilla; the contralateral (control) side received saline injections. Two groups of rats were treated by daily oral intubation with a chemically modified curcumin, CMC 2.24, for two weeks; the control groups received vehicle alone. After sacrifice, gingiva, blood, and maxilla were collected, the jaws were defleshed, and periodontal (alveolar) bone loss was quantified morphometrically and by μ-CT scan. The gingivae were pooled per experimental group, extracted, and analyzed for MMPs (gelatin zymography; western blot) and for cytokines (e.g., IL-1β; ELISA); serum and plasma samples were analyzed for cytokines and MMP-8. The LPS-induced pathologically excessive bone loss was reduced to normal levels based on either morphometric (P = 0.003) or μ-CT (P = 0.008) analysis. A similar response was seen for MMPs and cytokines in the gingiva and blood. This initial study, on a novel triketonic zinc-binding CMC, indicates potential efficacy on inflammatory mediators and alveolar bone loss in experimental periodontitis and warrants future therapeutic and pharmacokinetic investigations.
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Azambuja CBD, Cavagni J, Wagner MC, Gaio EJ, Rösing CK. Correlation analysis of alveolar bone loss in buccal/palatal and proximal surfaces in rats. Braz Oral Res 2012. [PMID: 23184169 DOI: 10.1590/s1806-83242012000600014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The aim was to correlate alveolar bone loss in the buccal/palatal and the mesial/distal surfaces of upper molars in rats. Thirty-three, 60-day-old, male Wistar rats were divided in two groups, one treated with alcohol and the other not treated with alcohol. All rats received silk ligatures on the right upper second molars for 4 weeks. The rats were then euthanized and their maxillae were split and defleshed with sodium hypochlorite (9%). The cemento-enamel junction (CEJ) was stained with 1% methylene blue and the alveolar bone loss in the buccal/palatal surfaces was measured linearly in 5 points on standardized digital photographs. Measurement of the proximal sites was performed by sectioning the hemimaxillae, restaining the CEJ and measuring the alveolar bone loss linearly in 3 points. A calibrated and blinded examiner performed all the measurements. Intraclass Correlation Coefficient revealed values of 0.96 and 0.89 for buccal/lingual and proximal surfaces, respectively. The Pearson Correlation Coefficient (r) between measurements in buccal/palatal and proximal surfaces was 0.35 and 0.05 for the group treated with alcohol, with and without ligatures, respectively. The best correlations between buccal/palatal and proximal surfaces were observed in animals not treated with alcohol, in sites both with and without ligatures (r = 0.59 and 0.65, respectively). A positive correlation was found between alveolar bone loss in buccal/palatal and proximal surfaces. The correlation is stronger in animals that were not treated with alcohol, in sites without ligatures. Areas with and without ligature-induced periodontal destruction allow detection of alveolar bone loss in buccal/palatal and proximal surfaces.
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Amadei SU, Souza DMD, Brandão AAH, Rocha RFD. Influence of different durations of estrogen deficiency on alveolar bone loss in rats. Braz Oral Res 2012; 25:538-43. [PMID: 22147235 DOI: 10.1590/s1806-83242011000600011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Accepted: 10/14/2011] [Indexed: 11/22/2022] Open
Abstract
The purpose of this study was to morphometrically evaluate the influence of different durations of ovariectomy-induced estrogen deficiency on alveolar bone loss associated with ligature-induced bone loss in rats. Sixty female Wistar rats were randomly assigned to ovariectomy (OVX test group) or sham operation (SHAM control group). The OVX and SHAM groups were each distributed into three subgroups of ten rats each according to the duration of estrogen deficiency (30, 60 and 90 postoperative days). In all groups, for the last 30 days of the experimental period, cotton ligatures were placed around the cervix of the right upper second molar; the contralateral tooth was left unligated to serve as a control. The maxillary bones were removed, and the alveolar bone loss was analyzed by measuring the distance between the cementoenamel junction and the alveolar bone crest at the buccal site of the right upper second molar. A comparison between the ligated and unligated groups verified the presence of ligature-induced alveolar bone loss (p < 0.05). No significant differences were observed among the unligated groups (p > 0.05). A significant increase in bone loss was observed when ligation occurred 90 days after ovariectomy compared with the sham group (p < 0.05). These results demonstrate that long-term estrogen deficiency affects ligature-induced alveolar bone loss.
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Affiliation(s)
- Susana Ungaro Amadei
- Department of Dentistry, School of Dentistry of Pindamonhangaba, Faculty of Pindamonhangaba, Pindamonhangaba, SP, Brazil.
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Saadi-Thiers K, Huck O, Simonis P, Tilly P, Fabre JE, Tenenbaum H, Davideau JL. Periodontal and systemic responses in various mice models of experimental periodontitis: respective roles of inflammation duration and Porphyromonas gingivalis infection. J Periodontol 2012; 84:396-406. [PMID: 22655910 DOI: 10.1902/jop.2012.110540] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The great variability of periodontal and systemic responses to experimental periodontitis reflects the inherent pathogenic complexity of mice models and could limit the resulting interpretations and their extension to human diseases. This study compared the effect of Porphyromonas gingivalis (Pg) infection and experimental periodontitis duration at local and systemic levels in various models. METHODS Periodontitis was induced in C57BL/6J mice by ligatures previously incubated with Pg (LIGPG group) or not (LIG group) or by oral gavage (GAV) with Pg ATCC 33277. Blood samples were taken, and mice were euthanized at different times. Periodontal tissue destruction, osteoclast number, and inflammation were assessed by histomorphometry, tartrate-resistant acid phosphatase histoenzymology, and cathepsin B (CATB) and matrix metalloproteinase 9 (MMP9) immunochemistry. Serum levels of interleukin-6 (IL-6) and IL-1β were measured using enzyme-linked immunosorbent assay bioplex methods. RESULTS Periodontal tissue destruction and osteoclast numbers were significantly elevated in LIGPG models compared to LIG and GAV models. They increased with time with the exception of osteoclast numbers in the LIG model. CATB and MMP9 expression was related to bone destruction processes and Pg infection. The highest serum levels of IL-6 and IL-1β were observed in the LIGPG group. A decrease of IL-6 and an increase of IL-1β serum level were observed with time in LIGPG group contrary to LIG group. CONCLUSIONS These data indicate that Pg infection worsened periodontal tissue destruction through specific pathogenic pathways and modified systemic response to periodontal inflammation. Furthermore, the blood cytokine response to ligature models showed their relevance for evaluating the systemic impact of periodontal disease.
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Affiliation(s)
- Kenza Saadi-Thiers
- Department of Periodontology, Dental Faculty, University of Strasbourg, Strasbourg, France
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