Cinnamic acid decreases periodontal inflammation and alveolar bone loss in experimental periodontitis

2020 ◽  
Vol 55 (5) ◽  
pp. 676-685
Author(s):  
Ozkan Karatas ◽  
Hatice Balci Yuce ◽  
Mehmet Murat Taskan ◽  
Fikret Gevrek ◽  
Cemil Alkan ◽  
...  
Keyword(s):  
Bone Loss ◽  
Cinnamic Acid ◽  
Alveolar Bone ◽  
Alveolar Bone Loss ◽  
Periodontal Inflammation ◽  
Experimental Periodontitis

scholarly journals Akkermansia muciniphila and Its Pili-Like Protein Amuc_1100 Modulate Macrophage Polarization in Experimental Periodontitis

2020 ◽  
Vol 89 (1) ◽  
pp. e00500-20
Author(s):  
Hannah Mulhall ◽  
Jeanne M. DiChiara ◽  
Matthew Deragon ◽  
Radha Iyer ◽  
Olivier Huck ◽  
...  
Keyword(s):  
Bone Loss ◽  
Alveolar Bone ◽  
Macrophage Polarization ◽  
Alveolar Bone Loss ◽  
Oral Microbiome ◽  
Content Type ◽  
Akkermansia Muciniphila ◽  
Periodontal Inflammation ◽  
Experimental Periodontitis ◽  
Anti Inflammatory

ABSTRACTPeriodontitis is a chronic inflammatory disease triggered by dysbiosis of the oral microbiome. Porphyromonas gingivalis is strongly implicated in periodontal inflammation, gingival tissue destruction, and alveolar bone loss through sustained exacerbation of the host response. Recently, the use of other bacterial species, such as Akkermansia muciniphila, has been suggested to counteract inflammation elicited by P. gingivalis. In this study, the effects of A. muciniphila and its pili-like protein Amuc_1100 on macrophage polarization during P. gingivalis infection were evaluated in a murine model of experimental periodontitis. Mice were gavaged with P. gingivalis alone or in combination with A. muciniphila or Amuc_1100 for 6 weeks. Morphometric analysis demonstrated that the addition of A. muciniphila or Amuc_1100 significantly reduced P. gingivalis-induced alveolar bone loss. This decreased bone loss was associated with a proresolutive phenotype (M2) of macrophages isolated from submandibular lymph nodes as observed by flow cytometry. Furthermore, the expression of interleukin 10 (IL-10) at the RNA and protein levels was significantly increased in the gingival tissues of the mice and in macrophages exposed to A. muciniphila or Amuc_1100, confirming their anti-inflammatory properties. This study demonstrates the putative therapeutic interest of the administration of A. muciniphila or Amuc_1100 in the management of periodontitis through their anti-inflammatory properties.

3,4,5-Trihydroxybenzoic acid attenuates ligature-induced periodontal disease in Wistar rats.

2020 ◽  
Vol 19 ◽  
Author(s):  
Ozkan Karatas ◽  
Fikret Gevrek
Keyword(s):  
Bone Loss ◽  
Gallic Acid ◽  
Wistar Rats ◽  
Alveolar Bone ◽  
Alveolar Bone Loss ◽  
Collagenase Activity ◽  
Osteoblastic Activity ◽  
Cell Counts ◽  
Experimental Periodontitis ◽  
Anti Inflammatory

Background: 3,4,5-Trihydroxybenzoic acid, which is also known as gallic acid, is an anti-inflammatory agent who could provide beneficial effects in preventing periodontal inflammation. The present study aimed to evaluate the anti-inflammatory effects of gallic acid on experimental periodontitis in Wistar rats. Alveolar bone loss, osteoclastic activity, osteoblastic activity, and collagenase activity were also determined. Methods: 32 Wistar rats were used in the present study. Study groups were created as following: Healthy control (C,n=8) group; periodontitis (P,n=8) group; periodontitis and 30 mg/kg gallic acid administered group (G30,n=8); periodontitis and 60 mg/kg gallic acid administered group (G60,n=8). Experimental periodontitis was created by placing 4-0 silk sutures around the mandibular right first molar tooth. Morphological changes in alveolar bone were determined by stereomicroscopic evaluation. Mandibles were undergone histological evaluation. Matrix metalloproteinase (MMP)-8, tissue inhibitor of MMPs (TIMP)-1, bone morphogenetic protein (BMP)-2 expressions, tartrate-resistant acid phosphatase (TRAP) positive osteoclast cells, osteoblast, and inflammatory cell counts were determined. Results: Highest alveolar bone loss was observed in the periodontitis group. Both doses of gallic acid decreased alveolar bone loss compared to the P group. TRAP-positive osteoclast cell counts were higher in the P group, and gallic acid successfully lowered these counts. Osteoblast cells also increased in gallic acid administered groups. Inflammation in the P group was also higher than those of C, G30, and G60 groups supporting the role of gallic acid in preventing inflammation. 30 and 60 mg/kg doses of gallic acid decreased MMP-8 levels and increased TIMP-1 levels. BMP levels increased in gallic acid administered groups, similar to several osteoblasts. Conclusion: Present results revealed an anti-inflammatory effect of gallic acid, which was indicated by decreased alveolar bone loss and collagenase activity and increased osteoblastic activity.

scholarly journals SOCS-3 Regulates Alveolar Bone Loss in Experimental Periodontitis

2016 ◽  
Vol 95 (9) ◽  
pp. 1018-1025 ◽  
Author(s):  
E. Papathanasiou ◽  
A. Kantarci ◽  
A. Konstantinidis ◽  
H. Gao ◽  
T.E. Van Dyke
Keyword(s):  
Bone Loss ◽  
Alveolar Bone ◽  
Alveolar Bone Loss ◽  
Experimental Periodontitis

Angiopoietin‐like protein 2 deficiency promotes periodontal inflammation and alveolar bone loss

2021 ◽  
Author(s):  
Chenxi Jiang ◽  
Siqi Yao ◽  
Yi Guo ◽  
Li Ma ◽  
Xiaoxuan Wang ◽  
...  
Keyword(s):  
Bone Loss ◽  
Alveolar Bone ◽  
Alveolar Bone Loss ◽  
Periodontal Inflammation

Humic Acid, a Polyphenolic Substance, Decreases Alveolar Bone Loss in Experimental Periodontitis in Rats

2019 ◽  
Vol 36 (4) ◽  
pp. 257-265
Author(s):  
Metin Çalışır ◽  
Aysun Akpınar ◽  
Ömer Poyraz ◽  
Fahrettin Göze ◽  
Ziynet Çınar
Keyword(s):  
Humic Acid ◽  
Bone Loss ◽  
Inflammatory Cell ◽  
Alveolar Bone ◽  
Alveolar Bone Loss ◽  
Inflammatory Cell Infiltration ◽  
Cell Infiltration ◽  
Enzyme Linked Immunosorbent Assay ◽  
Local Administration ◽  
Experimental Periodontitis

The purpose of this study was to evaluate the biochemical, morphometric, and histopathological changes associated with experimental periodontitis in rats in response to local administration of humic acid. Thirty-eight Wistar rats were divided into 5 experimental groups: nonligated (NL) group, ligature-only (LO) group, and ligature + local administration of humic acid (20, 80, and 150 mg/kg body weight per day for 15 days, respectively; L-20, L-80, and L-150 groups). Changes in alveolar bone levels were clinically measured as the distance from the cementoenamel junction to the alveolar bone crest with a stereomicroscope. Tissues were histopathologically examined to assess the osteoclast numbers, osteoblastic activity, and inflammatory cell infiltration among the study groups. Enzyme-linked immunosorbent assay interleukin1β (IL-1β) and IL-10 levels in serum and gingival homogenates were evaluated. At the end of 15 days, the alveolar bone loss was significantly higher in the LO group compared to the NL, L-20, and L-150 groups ( P < .05). The osteoclast number in the LO group was significantly higher than the NL, L-20, and L-150 groups ( P < .05). Inflammatory cell infiltration was significantly higher in the LO and L-80 groups than the other groups ( P < .05). The highest serum and gingival homogenate IL-10 levels were determined in the NL group ( P < .05). The serum and gingival homogenate IL-1β levels in LO group were significantly higher than the NL, L-20, and L-150 groups ( P < .05). Within the limits of this study, it can be suggested that humic acid, when administered locally at 20 and 80 mg/kg doses, may prevent alveolar bone loss in the rat model.

Involvement of Cot/Tp12 in Bone Loss during Periodontitis

2010 ◽  
Vol 89 (2) ◽  
pp. 192-197 ◽  
Author(s):  
T. Ohnishi ◽  
A. Okamoto ◽  
K. Kakimoto ◽  
K. Bandow ◽  
N. Chiba ◽  
...  
Keyword(s):  
Bone Loss ◽  
Alveolar Bone ◽  
Alveolar Bone Loss ◽  
Periodontal Tissue ◽  
Rankl Expression ◽  
Periodontal Tissues ◽  
Tnf Α ◽  
Experimental Periodontitis ◽  
Deficient Mice

Periodontitis causes resorption of alveolar bone, in which RANKL induces osteoclastogenesis. The binding of lipopolysaccharide to Toll-like receptors causes phosphorylation of Cot/Tp12 to activate the MAPK cascade. Previous in vitro studies showed that Cot/Tp12 was essential for the induction of RANKL expression by lipopolysaccharide. In this study, we examined whether Cot/Tp12 deficiency reduced the progression of alveolar bone loss and osteoclastogenesis during experimental periodontitis. We found that the extent of alveolar bone loss and osteoclastogenesis induced by ligature-induced periodontitis was decreased in Cot/Tp12-deficient mice. In addition, reduction of RANKL expression was observed in periodontal tissues of Cot/Tp12-deficient mice with experimental periodontitis. Furthermore, we found that Cot/Tp12 was involved in the induction of TNF-α mRNA expression in gingiva of mice with experimental periodontitis. Our observations suggested that Cot/Tp12 is essential for the progression of alveolar bone loss and osteoclastogenesis in periodontal tissue during experimental periodontitis mediated through increased RANKL expression.

Effects of boric acid on experimental periodontitis and alveolar bone loss in rats

2012 ◽  
Vol 57 (1) ◽  
pp. 60-65 ◽  
Author(s):  
Serhat Demirer ◽  
M. Isa Kara ◽  
Kamile Erciyas ◽  
Hakan Ozdemir ◽  
Hatice Ozer ◽  
...  
Keyword(s):  
Bone Loss ◽  
Boric Acid ◽  
Alveolar Bone ◽  
Alveolar Bone Loss ◽  
Experimental Periodontitis
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