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The composition of the bacteria found in liver, spleen, oral cavity and fecal samples of mice subjected to an experimental periodontitis model

ABSTRACT: The composition of the bacteria found in liver, spleen, oral cavity and fecal samples of mice subjected to an experimental periodontitis model

PROVIDER: PRJNA431616 | ENA |

REPOSITORIES: ENA

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The composition of the bacteria found in liver, spleen, oral cavity and fecal samples of mice subjected to an experimental periodontitis model

Project description:Periodontitis patients often develop bacteremia, but there has been little evidence showing that oral bacteria translocate into other organs. We found that bacterial colony formation occurs in a culture of liver and spleen cells of periodontitis-induced mice, and the bacterial species detected in the liver and spleen were found in the oral cavity as well, but not in fecal samples, indicating systemic dissemination of oral bacteria during the breakdown of the oral barrier.

2018-01-26 | GSE109664 | GEO

Comparison of mRNA expression levels in peri-implantitis and periodontitis within the same host environment

Project description:Purpose: The aim of this study was to explore whether differences exist and to what an extent of the immune-mediated inflammatory reactions between periodontitis and peri-implantitis at the transcriptional level in the same susceptible host. Methods: Ligature-induced experimental peri-implantitis and periodontitis in the same mice were established. Gingival tissues of healthy, periodontitis and peri-implantitis sites from the same oral cavity were collected and used for RNA-sequencing. Differentially expressed genes (DEGs) were screened between periodontitis/peri-implantitis sites and healthy sites. The enrichment analysis of DEGs were analyzed. Comprehensive immune landscape was annotated by seq-ImmuCC. Results: The results showed that 137 and 353 up-regulated DEGs as well as and 670 and 174 down-regulated DEGs were specifically expressed periodontitis/peri-implantitis group compared to the healthy control group, respectively. The pathways of complement and coagulation cascade and osteoclast differentiation were dominating in the peri-implantitis sites. Moreover, peri-implantitis sites exhibited elevated macrophage proportions and relatively enriched macrophage activation and bone loss compared with periodontitis. Conclusions: Results indicated that peri-implantitis and periodontitis exhibited significantly distinct transcriptional signatures. Additionally, the study suggests that the interplay between macrophages and bone resorption are comparatively more active in peri-implantitis compared with periodontitis. These biological processes may be factors contributing to the pathogenesis of peri-implantitis being distinct from that of periodontitis.

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Apical periodontitis

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Single Cell RNA sequencing of mouse periodontitis gingiva

Project description:Purpose: The goal of this study was to characterize the gingival oral barrier immunity of mouse periodontitis gingiva. Method: A silk thread (ligature) was tied wround the mouse maxillary molar. Mouse palatal gingiva was harvested at 1 days after the ligature placement. Gingival cells were harvested and subjected to 10X Genomix scRNA-seq. Cell Ranger processed data were analysed.

2023-11-09 | GSE228635 | GEO

Single Cell RNA sequencing of mouse early periodontitis gingiva

Project description:Purpose: The goal of this study was to characterize the gingival oral barrier immunity of mouse early periodontitis gingiva. Method: A silk thread (ligature) was tied wround the mouse maxillary molar. Mouse palatal gingiva was harvested at 1 days after the ligature placement. Gingival cells were harvested and subjected to 10X Genomix scRNA-seq. Cell Ranger processed data were analysed.

2022-04-21 | GSE201108 | GEO

Transcriptome of healthy gingival tissue in aggressive periodontitis

Project description:This study evaluated the transcriptome of healthy gingival tissue in patients with a history of generalized aggressive periodontitis (GAgP) and chronic periodontitis (CP) and in subjects with no history of periodontitis (H), using microarray analysis.

2017-03-29 | GSE79705 | GEO

Fibroblast VEGF-receptor 1 expression as molecular target in periodontitis

Project description:To identify gene expression profiles in those periodontitis-associated fibroblasts (PAFs) versus normal gingival fibroblasts to determine their molecular repertoire, and exploit it for therapeutic intervention. We collected RNA from 4 paired PAF and non PAF from patients with periodontitis

2015-03-11 | E-GEOD-66771 | biostudies-arrayexpress

A Novel Composite Hydrogel for Treating Periodontitis and Hypertension

Project description:Periodontitis and hypertension often occur as comorbidities. In the face of severe periodontitis patients with hypertension, periodontists often have to give priority to control the patient's blood pressure before surgical treatment, and how to use drugs also brings a lot of inconvenience for clinical treatment. In the stage of periodontal basic treatment, it is a problem that needs to be solved to treat periodontal inflammation and control blood pressure at the same time, so as to achieve “co-treatment of comorbidities”. To this issue, we proposed a controlled-release composite hydrogel approach with dual antibacterial and anti-inflammatory activities as a resolution for pathogen-originated periodontitis. Specifically, chitosan (CS) with inherent antibacterial properties was crosslinked with antimicrobial peptide (AMP) modified polyethylene glycol (PEG) to form the dual antibacterial hydrogel (CS-PA). Subsequently, curcumin nanoparticles (CNP) were encapsulated in the hydrogel to impart anti-inflammatory activities. In the mouse model of periodontitis complicated with hypertension, CS-PA/CNP was applied to gingival sulcus, found that it produced a perfect therapeutic effect on periodontitis and hypertension at the same time. The antibacterial experiments showed that CS-PA/CNP had an excellent inhibitory effect on a variety of periodontal pathogens, demonstrated the potential regulatory ability of the microbiota. In addition, cytological studies revealed the molecular mechanism that CS-PA/CNP enhanced antioxidant capacity of macrophages through the glutathione metabolism pathway, while enhancing their anti-inflammatory capacity. In conclusion, CS-PA/CNP has demonstrated its superior therapeutic effect and potential clinical translational value in the treatment of periodontitis and hypertension, which also serves as a drug delivery platform to provide combinatorial therapeutic options for periodontitis with complicated pathogenesis.

2022-08-28 | GSE212040 | GEO

Transcriptome analysis of periodontitis-associated fibroblasts by CAGE sequencing identified DLX5 and RUNX2 long variant as novel regulators involved in periodontitis

Project description:Transcriptome analysis of periodontitis-associated fibroblasts by CAGE sequencing identified DLX5 and RUNX2 long variant as novel regulators involved in periodontitis

2016-09-15 | GSE81984 | GEO

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