{"title":"Oral inoculation of <i>Enterococcus faecalis</i>, DNA quantification and histopathological evaluation of gingival, heart and kidney tissue samples in rats.","authors":"Fazle Khuda, Putri Ayu Jayusman, Badiah Baharin, Nur Najmi Mohamad Anuar, Anubhava Sharma, Nurrul Shaqinah Nasruddin","doi":"10.18502/ijm.v16i3.15765","DOIUrl":null,"url":null,"abstract":"<p><strong>Background and objectives: </strong><i>Enterococcus faecalis</i> is known as common pathogen for endodontic infections and cause secondary and refractory pulp periapical periodontitis. The bacteria can opportunistically colonize periodontal pockets and presents a possibility of infection developing in other organs. This research will investigate the dissemination of <i>E. faecalis</i> from the gingival tissue to the heart and kidney.</p><p><strong>Materials and methods: </strong>Three groups were formed, consisting of twelve male Sprague Dawley rats: a control group designated as 0-day, and experimental groups labeled as 7-days and 14-days. Periodontitis induced by concurrent infection with sterile wire 0.2 mm insertion and <i>E. faecalis</i> inoculation is performed into the gingival sulcus located between the maxillary right 1<sup>st</sup> and 2<sup>nd</sup> molar teeth area. After euthanasia, tissue samples around the maxillary gingiva, maxillary jaw samples, kidney and heart tissues were obtained for quantitative Real-Time PCR assay and histopathological analysis.</p><p><strong>Results: </strong>Results showed at 7-days, there was an upregulation of <i>E. faecalis</i> gene expression in the gingiva, heart, and kidney samples as well as infiltration of the inflammatory cells at 7-days post induction, which consequently decreased at 14-days.</p><p><strong>Conclusion: </strong>Thus, the study suggests dissemination of <i>E. faecali</i>s from gingival tissue to the heart, kidney which could be probable link between periodontal disease, heart, and kidney disease.</p>","PeriodicalId":14633,"journal":{"name":"Iranian Journal of Microbiology","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11245354/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iranian Journal of Microbiology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.18502/ijm.v16i3.15765","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MICROBIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background and objectives: Enterococcus faecalis is known as common pathogen for endodontic infections and cause secondary and refractory pulp periapical periodontitis. The bacteria can opportunistically colonize periodontal pockets and presents a possibility of infection developing in other organs. This research will investigate the dissemination of E. faecalis from the gingival tissue to the heart and kidney.
Materials and methods: Three groups were formed, consisting of twelve male Sprague Dawley rats: a control group designated as 0-day, and experimental groups labeled as 7-days and 14-days. Periodontitis induced by concurrent infection with sterile wire 0.2 mm insertion and E. faecalis inoculation is performed into the gingival sulcus located between the maxillary right 1st and 2nd molar teeth area. After euthanasia, tissue samples around the maxillary gingiva, maxillary jaw samples, kidney and heart tissues were obtained for quantitative Real-Time PCR assay and histopathological analysis.
Results: Results showed at 7-days, there was an upregulation of E. faecalis gene expression in the gingiva, heart, and kidney samples as well as infiltration of the inflammatory cells at 7-days post induction, which consequently decreased at 14-days.
Conclusion: Thus, the study suggests dissemination of E. faecalis from gingival tissue to the heart, kidney which could be probable link between periodontal disease, heart, and kidney disease.
期刊介绍：
The Iranian Journal of Microbiology (IJM) is an international, multi-disciplinary, peer-reviewed journal that provides rapid publication of the most advanced scientific research in the areas of basic and applied research on bacteria and other micro-organisms, including bacteria, viruses, yeasts, fungi, microalgae, and protozoa concerning the development of tools for diagnosis and disease control, epidemiology, antimicrobial agents, clinical microbiology, immunology, Genetics, Genomics and Molecular Biology. Contributions may be in the form of original research papers, review articles, short communications, case reports, technical reports, and letters to the Editor. Research findings must be novel and the original data must be available for review by the Editors, if necessary. Studies that are preliminary, of weak originality or merely descriptive as well as negative results are not appropriate for the journal. Papers considered for publication must be unpublished work (except in an abstract form) that is not under consideration for publication anywhere else, and all co-authors should have agreed to the submission. Manuscripts should be written in English.
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