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Shiba T, Komatsu K, Takeuchi Y, Koyanagi T, Taniguchi Y, Takagi T, Maekawa S, Nagai T, Kobayashi R, Matsumura S, Katagiri S, Izumi Y, Aoki A, Iwata T. Novel Flowchart Guiding the Non-Surgical and Surgical Management of Peri-Implant Complications: A Narrative Review. Bioengineering (Basel) 2024; 11:118. [PMID: 38391604 PMCID: PMC10885994 DOI: 10.3390/bioengineering11020118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 01/04/2024] [Accepted: 01/22/2024] [Indexed: 02/24/2024] Open
Abstract
Peri-implant diseases, such as peri-implant mucositis and peri-implantitis, are induced by dysbiotic microbiota resulting in the inflammatory destruction of peri-implant tissue. Nonetheless, there has yet to be an established protocol for the treatment of these diseases in a predictable manner, although many clinicians and researchers have proposed various treatment modalities for their management. With the increase in the number of reports evaluating the efficacy of various treatment modalities and new materials, the use of multiple decontamination methods to clean infected implant surfaces is recommended; moreover, the use of hard tissue laser and/or air abrasion techniques may prove advantageous in the future. Limited evidence supports additional effects on clinical improvement in antimicrobial administration for treating peri-implantitis. Implantoplasty may be justified for decontaminating the implant surfaces in the supracrestal area. Surgical treatment is employed for advanced peri-implantitis, and appropriate surgical methods, such as resection therapy or combination therapy, should be selected based on bone defect configuration. This review presents recent clinical advances in debridement methods for contaminated implant surfaces and regenerative materials for treating peri-implant bone defects. It also proposes a new flowchart to guide the treatment decisions for peri-implant disease.
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Affiliation(s)
- Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, USA
| | - Keiji Komatsu
- Department of Lifetime Oral Health Care Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
- Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Yasuo Takeuchi
- Department of Lifetime Oral Health Care Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Tatsuro Koyanagi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Yoichi Taniguchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Toru Takagi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Shogo Maekawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Takahiko Nagai
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Ryota Kobayashi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Shunsuke Matsumura
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Yuichi Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
- Oral Care Periodontics Center, Southern TOHOKU Research Institute for Neuroscience, Southern TOHOKU General Hospital, Koriyama 963-8052, Japan
| | - Akira Aoki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
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Lin P, Liu A, Tsuchiya Y, Noritake K, Ohsugi Y, Toyoshima K, Tsukahara Y, Shiba T, Nitta H, Aoki A, Iwata T, Katagiri S. Association between periodontal disease and chronic obstructive pulmonary disease. Jpn Dent Sci Rev 2023; 59:389-402. [PMID: 38022389 PMCID: PMC10652094 DOI: 10.1016/j.jdsr.2023.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/15/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) and periodontal disease are chronic inflammatory conditions that significantly affect an individual's overall health and well-being. Generally, the prevalence of periodontitis is higher in patients with COPD than those without COPD, which may partly be attributed to common risk factors in COPD, such as smoking, respiratory infections, and inflammation. In particular, periodontitis may exacerbate the progression of COPD and further deteriorate the respiratory system by promoting inflammatory responses and bacterial infections. Immunocytes, including neutrophils, and microorganisms such as Fusobacterium nucleatum originating from oral biofilms are believed to be crucial factors influencing to COPD. Furthermore, the potential benefits of treating periodontal disease in COPD outcomes have been investigated. Although the relationship between COPD and periodontal disease has been preliminarily studied, there is currently a lack of large-scale clinical studies to validate this association. In addition to clinical examinations, investigating biomarkers and microbiology may contribute to explore the underlying mechanisms involved in the management of these conditions. This review aims to contribute to a better understanding of the clinical and basic research aspects of COPD and periodontitis, allowing for potential therapeutic approaches and interdisciplinary management strategies.
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Affiliation(s)
- Peiya Lin
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Anhao Liu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yosuke Tsuchiya
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kanako Noritake
- Oral Diagnosis and General Dentistry, Division of Clinical Dentistry, Tokyo Medical and Dental University Hospital, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Keita Toyoshima
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yuta Tsukahara
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, USA
| | - Hiroshi Nitta
- Department of General Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Akira Aoki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Toyoshima K, Ohsugi Y, Lin P, Komatsu K, Shiba T, Takeuchi Y, Hirota T, Shimohira T, Tsuchiya Y, Katagiri S, Iwata T, Aoki A. Blue Light-Emitting Diode Irradiation Without a Photosensitizer Alters Oral Microbiome Composition of Ligature-Induced Periodontitis in Mice. Photobiomodul Photomed Laser Surg 2023; 41:549-559. [PMID: 37788456 DOI: 10.1089/photob.2023.0061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023] Open
Abstract
Objective: This study investigated the suppressive effects of blue light-emitting diode (LED) irradiation on bone resorption and changes in the oral microbiome of mice with ligature-induced periodontitis. Background: Wavelength of blue light has antimicrobial effects; however, whether blue LED irradiation alone inhibits the progression of periodontitis remains unclear. Methods: Nine-week-old male mice ligated ligature around the right maxillary second molar was divided into ligation alone (Li) and ligation with blue LED irradiation (LiBL) groups. The LiBL group underwent blue LED (wavelength, 455 nm) irradiation four times in a week at 150 mW/cm2 without a photosensitizer on the gingival tissue around the ligated tooth at a distance of 5 mm for 5 min. The total energy density per day was 45 J/cm2. Bone resorption was evaluated using micro-computed tomography at 8 days. Differences in the oral microbiome composition of the collected ligatures between the Li and LiBL groups were analyzed using next-generation sequencing based on the 16S rRNA gene from the ligatures. Results: Blue LED irradiation did not suppress bone resorption caused by ligature-induced periodontitis. However, in the LiBL group, the α-diversity, number of observed features, and Chao1 were significantly decreased. The relative abundances in phylum Myxococcota and Bacteroidota were underrepresented, and the genera Staphylococcus, Lactococcus, and Lactobacillus were significantly overrepresented by blue LED exposure. Metagenomic function prediction indicated an increase in the downregulated pathways related to microbial energy metabolism after irradiation. The co-occurrence network was altered to a simpler structure in the LiBL group, and the number of core genera decreased. Conclusions: Blue LED irradiation altered the composition and network of the oral microbiome of ligature-induced periodontitis in mice.
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Affiliation(s)
- Keita Toyoshima
- Department of Periodontology and Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yujin Ohsugi
- Department of Periodontology and Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Peiya Lin
- Department of Periodontology and Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Keiji Komatsu
- Department of Lifetime Oral Health Care Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology and Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Yasuo Takeuchi
- Department of Periodontology and Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
- Department of Lifetime Oral Health Care Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomomitsu Hirota
- Division of Molecular Genetics, Research Center for Medical Science, The Jikei University School of Medicine, Tokyo, Japan
| | - Tsuyoshi Shimohira
- Department of Periodontology and Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yosuke Tsuchiya
- Department of Periodontology and Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology and Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology and Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Akira Aoki
- Department of Periodontology and Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Katagiri S, Ohsugi Y, Shiba T, Yoshimi K, Nakagawa K, Nagasawa Y, Uchida A, Liu A, Lin P, Tsukahara Y, Iwata T, Tohara H. Homemade blenderized tube feeding improves gut microbiome communities in children with enteral nutrition. Front Microbiol 2023; 14:1215236. [PMID: 37680532 PMCID: PMC10482415 DOI: 10.3389/fmicb.2023.1215236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/09/2023] [Indexed: 09/09/2023] Open
Abstract
Enteral nutrition for children is supplied through nasogastric or gastrostomy tubes. Diet not only influences nutritional intake but also interacts with the composition and function of the gut microbiota. Homemade blenderized tube feeding has been administered to children receiving enteral nutrition, in addition to ready-made tube feeding. The purpose of this study was to evaluate the oral/gut microbial communities in children receiving enteral nutrition with or without homemade blenderized tube feeding. Among a total of 30 children, 6 receiving mainly ready-made tube feeding (RTF) and 5 receiving mainly homemade blenderized tube feeding (HBTF) were analyzed in this study. Oral and gut microbiota community profiles were evaluated through 16S rRNA sequencing of saliva and fecal samples. The α-diversity representing the number of observed features, Shannon index, and Chao1 in the gut were significantly increased in HBTF only in the gut microbiome but not in the oral microbiome. In addition, the relative abundances of the phylum Proteobacteria, class Gammaproteobacteria, and genus Escherichia-Shigella were significantly low, whereas that of the genus Ruminococcus was significantly high in the gut of children with HBTF, indicating HBTF altered the gut microbial composition and reducing health risks. Metagenome prediction showed enrichment of carbon fixation pathways in prokaryotes at oral and gut microbiomes in children receiving HBTF. In addition, more complex network structures were observed in the oral cavity and gut in the HBTF group than in the RTF group. In conclusion, HBTF not only provides satisfaction and enjoyment during meals with the family but also alters the gut microbial composition to a healthy state.
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Affiliation(s)
- Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, United States
| | - Kanako Yoshimi
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kazuharu Nakagawa
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yuki Nagasawa
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Aritoshi Uchida
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Anhao Liu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Peiya Lin
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yuta Tsukahara
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Haruka Tohara
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Shiba T, Komatsu K, Watanabe T, Takeuchi Y, Nemoto T, Ohsugi Y, Katagiri S, Shimogishi M, Marukawa E, Iwata T. Peri-implantitis management by resective surgery combined with implantoplasty and Er:YAG laser irradiation, accompanied by free gingival graft: a case report. Ther Adv Chronic Dis 2023; 14:20406223231174816. [PMID: 37324409 PMCID: PMC10265339 DOI: 10.1177/20406223231174816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 04/24/2023] [Indexed: 06/17/2023] Open
Abstract
The optimal method for decontamination of implant surfaces for peri-implantitis treatment remains controversial. In recent years, erbium-doped yttrium aluminum garnet (Er:YAG) laser irradiation and implantoplasty (IP) (i.e. mechanical modification of the implant) have been reported to be effective in decontaminating implant surfaces during the surgical treatment. Also, a lack of adequate keratinized mucosa (KM) around the implant is known to be associated with more plaque accumulation, tissue inflammation, attachment loss, and mucosal recession, increasing the risk of peri-implantitis. Therefore, free gingival graft (FGG) has been recommended for gaining adequate KM around the implant. However, the necessity of acquiring KM for the treatment of peri-implantitis using FGG remains unclear. In this report, we applied the apically positioned flap (APF) as resective surgery for peri-implantitis treatment in conjunction with IP and Er:YAG laser irradiation to polish/clean the implant surface. Furthermore, FGG was conducted simultaneously to create additional KM, which increased the tissue stability and contributed to the positive results. The two patients were 64 and 63 years old with a history of periodontitis. The removal of granulation tissue and debridement of contaminated implant surfaces were performed with Er:YAG laser irradiation post flap elevation and then modified smooth surfaces mechanically using IP. Er:YAG laser irradiation was also utilized to remove the titanium particles. In addition, we performed FGG to increase the width of KM as a vestibuloplasty. Peri-implant tissue inflammation and progressive bone resorption were not observed, and both patients maintained good oral hygiene conditions until the 1-year follow-up appointment. Bacterial analysis via high-throughput sequencing revealed proportional decreases in bacteria associated with periodontitis (Porphyromonas, Treponema, and Fusobacterium). To the best of our knowledge, this study is the first to describe peri-implantitis management and bacterial change before and after procedures by resective surgery combined with IP and Er:YAG laser irradiation for peri-implantitis treatment, accompanied by FGG for increasing KM around the implants.
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Affiliation(s)
- Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku 1138510, Tokyo, Japan
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, USA
| | - Keiji Komatsu
- Department of Lifetime Oral Health Care Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Japan
| | - Takayasu Watanabe
- Department of Chemistry, Nihon University School of Dentistry, Chiyoda-ku, Japan
| | - Yasuo Takeuchi
- Department of Lifetime Oral Health Care Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Bunkyo-ku 1138510, Tokyo, Japan
| | - Takashi Nemoto
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Japan
| | - Masahiro Shimogishi
- Department of Regenerative and Reconstructive Dentistry, Tokyo Medical and Dental University, Bunkyo-ku, Japan
| | - Eriko Marukawa
- Department of Regenerative and Reconstructive Dentistry, Tokyo Medical and Dental University, Bunkyo-ku, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Japan
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Kuraji R, Shiba T, Dong TS, Numabe Y, Kapila YL. Periodontal treatment and microbiome-targeted therapy in management of periodontitis-related nonalcoholic fatty liver disease with oral and gut dysbiosis. World J Gastroenterol 2023; 29:967-996. [PMID: 36844143 PMCID: PMC9950865 DOI: 10.3748/wjg.v29.i6.967] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/14/2022] [Accepted: 01/30/2023] [Indexed: 02/10/2023] Open
Abstract
A growing body of evidence from multiple areas proposes that periodontal disease, accompanied by oral inflammation and pathological changes in the microbiome, induces gut dysbiosis and is involved in the pathogenesis of nonalcoholic fatty liver disease (NAFLD). A subgroup of NAFLD patients have a severely progressive form, namely nonalcoholic steatohepatitis (NASH), which is characterized by histological findings that include inflammatory cell infiltration and fibrosis. NASH has a high risk of further progression to cirrhosis and hepatocellular carcinoma. The oral microbiota may serve as an endogenous reservoir for gut microbiota, and transport of oral bacteria through the gastro-intestinal tract can set up a gut microbiome dysbiosis. Gut dysbiosis increases the production of potential hepatotoxins, including lipopolysaccharide, ethanol, and other volatile organic compounds such as acetone, phenol and cyclopentane. Moreover, gut dysbiosis increases intestinal permeability by disrupting tight junctions in the intestinal wall, leading to enhanced translocation of these hepatotoxins and enteric bacteria into the liver through the portal circulation. In particular, many animal studies support that oral administration of Porphyromonas gingivalis, a typical periodontopathic bacterium, induces disturbances in glycolipid metabolism and inflammation in the liver with gut dysbiosis. NAFLD, also known as the hepatic phenotype of metabolic syndrome, is strongly associated with metabolic complications, such as obesity and diabetes. Periodontal disease also has a bidirectional relationship with metabolic syndrome, and both diseases may induce oral and gut microbiome dysbiosis with insulin resistance and systemic chronic inflammation cooperatively. In this review, we will describe the link between periodontal disease and NAFLD with a focus on basic, epidemiological, and clinical studies, and discuss potential mechanisms linking the two diseases and possible therapeutic approaches focused on the microbiome. In conclusion, it is presumed that the pathogenesis of NAFLD involves a complex crosstalk between periodontal disease, gut microbiota, and metabolic syndrome. Thus, the conventional periodontal treatment and novel microbiome-targeted therapies that include probiotics, prebiotics and bacteriocins would hold great promise for preventing the onset and progression of NAFLD and subsequent complications in patients with periodontal disease.
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Affiliation(s)
- Ryutaro Kuraji
- Department of Periodontology, The Nippon Dental University School of Life Dentistry at Tokyo, Tokyo 102-0071, Japan
- Department of Orofacial Sciences, University of California San Francisco, San Francisco, CA 94143, United States
| | - Takahiko Shiba
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, United States
- Department of Periodontology, Tokyo Medical and Dental University, Tokyo 113-8549, Japan
| | - Tien S Dong
- The Vatche and Tamar Manoukian Division of Digestive Diseases, University of California Los Angeles, Department of Medicine, University of California David Geffen School of Medicine, Los Angeles, CA 90095, United States
| | - Yukihiro Numabe
- Department of Periodontology, The Nippon Dental University School of Life Dentistry at Tokyo, Tokyo 102-8159, Japan
| | - Yvonne L Kapila
- Department of Orofacial Sciences, University of California San Francisco, San Francisco, CA 94143, United States
- Sections of Biosystems and Function and Periodontics, Professor and Associate Dean of Research, Felix and Mildred Yip Endowed Chair in Dentistry, University of California Los Angeles, Los Angeles, CA 90095, United States
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Nagasawa Y, Katagiri S, Nakagawa K, Hirota T, Yoshimi K, Uchida A, Hatasa M, Komatsu K, Shiba T, Ohsugi Y, Uesaka N, Iwata T, Tohara H. Xanthan gum-based fluid thickener decreases postprandial blood glucose associated with increase of Glp1 and Glp1r expression in ileum and alteration of gut microbiome. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Ohsugi Y, Hatasa M, Katagiri S, Hirota T, Shimohira T, Shiba T, Komatsu K, Tsuchiya Y, Fukuba S, Lin P, Toyoshima K, Maekawa S, Niimi H, Iwata T, Aoki A. High-frequency pulsed diode laser irradiation inhibits bone resorption in mice with ligature-induced periodontitis. J Clin Periodontol 2022; 49:1275-1288. [PMID: 35817415 DOI: 10.1111/jcpe.13695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 06/08/2022] [Accepted: 07/03/2022] [Indexed: 11/26/2022]
Abstract
AIM The purpose of this study was to elucidate the suppressive effect of high-frequency pulsed diode laser irradiation on bone resorption and its biological effects for gene expression and microbiome composition on the gingival tissue in ligature-induced periodontitis in mice. MATERIALS AND METHODS Ligating ligature around the teeth and/or laser irradiation was performed on the gingival tissue in mice as follows: Co (no ligature and no laser irradiation), Li (ligation without laser irradiation), La (no ligature but with laser irradiation), and LiLa (ligation with laser irradiation). Bone resorption was evaluated using micro-computed tomography. RNA-seq analysis was performed on gingival tissues of all four groups at 3 days post ligation. The differences in microbial composition between Li and LiLa were evaluated based on the number of 16S rRNA gene sequences. RESULTS Bone resorption caused by ligation was significantly suppressed by laser irradiation. RNA-seq in Co and La gingival tissue revealed many differentially expressed genes, suggesting diode laser irradiation altered gene expression. Gene set enrichment analysis revealed mTORC1 signaling and E2F target gene sets were enriched in gingival tissues both in La and LiLa compared to that in Co and Li, respectively. The amount of extracted DNA from ligatures was reduced by laser irradiation, and bacterial network structure was altered between the Li and LiLa. CONCLUSIONS High-frequency pulsed diode laser irradiation showed biological effects and suppressed bone resorption in ligature-induced periodontitis. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masahiro Hatasa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomomitsu Hirota
- Division of Molecular Genetics, Research Center for Medical Science, The Jikei University School of Medicine, Japan
| | - Tsuyoshi Shimohira
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Keiji Komatsu
- Department of Lifetime Oral Health Care Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yosuke Tsuchiya
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shunsuke Fukuba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Peiya Lin
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Keita Toyoshima
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shogo Maekawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiromi Niimi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Akira Aoki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Shiba T, Komatsu K, Sudo T, Sawafuji R, Saso A, Ueda S, Watanabe T, Nemoto T, Kano C, Nagai T, Ohsugi Y, Katagiri S, Takeuchi Y, Kobayashi H, Iwata T. Corrigendum: Comparison of Periodontal Bacteria of Edo and Modern Periods Using Novel Diagnostic Approach for Periodontitis With Micro-CT. Front Cell Infect Microbiol 2022; 12:871340. [PMID: 35493745 PMCID: PMC9044965 DOI: 10.3389/fcimb.2022.871340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
- *Correspondence: Takahiko Shiba, ; Rikai Sawafuji, ; Hiroaki Kobayashi,
| | - Keiji Komatsu
- Department of Lifetime Oral Health Care Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takeaki Sudo
- Institute of Education, Tokyo Medical and Dental University, Tokyo, Japan
| | - Rikai Sawafuji
- The Graduate University for Advanced Studies, School of Advanced Sciences, Kanagawa, Japan
- *Correspondence: Takahiko Shiba, ; Rikai Sawafuji, ; Hiroaki Kobayashi,
| | - Aiko Saso
- Department of Physical Therapy, Faculty of Rehabilitation, Niigata University of Health and Welfare, Kita-ku, Niigata, Japan
| | - Shintaroh Ueda
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
- Department of Legal Medicine, Toho University School of Medicine, Tokyo, Japan
| | - Takayasu Watanabe
- Department of Chemistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Takashi Nemoto
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Chihiro Kano
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Nagai
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroaki Kobayashi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
- *Correspondence: Takahiko Shiba, ; Rikai Sawafuji, ; Hiroaki Kobayashi,
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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10
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Yoshida S, Hatasa M, Ohsugi Y, Tsuchiya Y, Liu A, Niimi H, Morita K, Shimohira T, Sasaki N, Maekawa S, Shiba T, Hirota T, Okano T, Hirose A, Ibi R, Noritake K, Tomiga Y, Nitta H, Suzuki T, Takahashi H, Miyasaka N, Iwata T, Katagiri S. Porphyromonas gingivalis Administration Induces Gestational Obesity, Alters Gene Expression in the Liver and Brown Adipose Tissue in Pregnant Mice, and Causes Underweight in Fetuses. Front Cell Infect Microbiol 2022; 11:745117. [PMID: 35096633 PMCID: PMC8792863 DOI: 10.3389/fcimb.2021.745117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 12/07/2021] [Indexed: 12/18/2022] Open
Abstract
Preventing adverse pregnancy outcomes is crucial for maternal and child health. Periodontal disease is a risk factor for many systemic diseases including adverse pregnancy outcomes, such as preterm birth and low birth weight. In addition, the administration of the periodontopathic bacterium Porphyromonas gingivalis exacerbates obesity, glucose tolerance, and hepatic steatosis and alters endocrine function in the brown adipose tissue (BAT). However, the effects of having periodontal disease during pregnancy remain unclear. Thus, this study investigates the effect of P. gingivalis administration on obesity, liver, and BAT during pregnancy. Sonicated P. gingivalis (Pg) or saline (Co) was injected intravenously and administered orally to pregnant C57BL/6J mice three times per week. Maternal body weight and fetal body weight on embryonic day (ED) 18 were evaluated. Microarray analysis and qPCR in the liver and BAT and hepatic and plasma triglyceride quantification were performed on dams at ED 18. The body weight of Pg dams was heavier than that of Co dams; however, the fetal body weight was decreased in the offspring of Pg dams. Microarray analysis revealed 254 and 53 differentially expressed genes in the liver and BAT, respectively. Gene set enrichment analysis exhibited the downregulation of fatty acid metabolism gene set in the liver and estrogen response early/late gene sets in the BAT, whereas inflammatory response and IL6/JAK/STAT3 signaling gene sets were upregulated both in the liver and BAT. The downregulation of expression levels of Lpin1, Lpin2, and Lxra in the liver, which are associated with triglyceride synthesis, and a decreasing trend in hepatic triglyceride of Pg dams were observed. P. gingivalis administration may alter lipid metabolism in the liver. Overall, the intravenous and oral administration of sonicated P. gingivalis-induced obesity and modified gene expression in the liver and BAT in pregnant mice and caused fetuses to be underweight.
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Affiliation(s)
- Sumiko Yoshida
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Masahiro Hatasa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yosuke Tsuchiya
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Anhao Liu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hiromi Niimi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kazuki Morita
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tsuyoshi Shimohira
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Naoki Sasaki
- Oral Diagnosis and General Dentistry, Division of Clinical Dentistry, Tokyo Medical and Dental University Hospital, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shogo Maekawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tomomitsu Hirota
- Division of Molecular Genetics, Research Center for Medical Sciences, The Jikei University School of Medicine, Tokyo, Japan
| | - Tokuju Okano
- Department of Bacterial Pathogenesis, Infection and Host Response, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Asuka Hirose
- Comprehensive Reproductive Medicine, Regulation of Internal Environment and Reproduction, Systemic Organ Regulation, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Rinko Ibi
- Comprehensive Reproductive Medicine, Regulation of Internal Environment and Reproduction, Systemic Organ Regulation, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kanako Noritake
- Oral Diagnosis and General Dentistry, Division of Clinical Dentistry, Tokyo Medical and Dental University Hospital, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yuki Tomiga
- Division of Metabolism and Endocrinology, Faculty of Medicine, Saga University, Saga, Japan
| | - Hiroshi Nitta
- Oral Diagnosis and General Dentistry, Division of Clinical Dentistry, Tokyo Medical and Dental University Hospital, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Toshihiko Suzuki
- Department of Bacterial Pathogenesis, Infection and Host Response, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hirokazu Takahashi
- Division of Metabolism and Endocrinology, Faculty of Medicine, Saga University, Saga, Japan
- Liver Center, Saga University Hospital, Faculty of Medicine, Saga University, Saga, Japan
| | - Naoyuki Miyasaka
- Comprehensive Reproductive Medicine, Regulation of Internal Environment and Reproduction, Systemic Organ Regulation, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
- *Correspondence: Sayaka Katagiri,
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11
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Shiba T, Katagiri S, Komatsu K, Nemoto T, Takeuchi Y, Chen B, Zhou Y, Iwata T. Treatment of Peri-implantitis Caused by Malpositioning and an Extra Implant: A Case Report. INT J PERIODONT REST 2022; 42:e15-e20. [DOI: 10.11607/prd.4800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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12
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Yamane N, Ikeda A, Tomooka K, Saito I, Maruyama K, Eguchi E, Suyama K, Fujii A, Shiba T, Tanaka K, Kooka A, Nakamura S, Kajita M, Kawamura R, Takata Y, Osawa H, Steptoe A, Tanigawa T. Salivary Alpha-Amylase Activity and Mild Cognitive Impairment among Japanese Older Adults: The Toon Health Study. J Prev Alzheimers Dis 2022; 9:752-757. [PMID: 36281680 DOI: 10.14283/jpad.2022.51] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
BACKGROUND There is growing interest in examining objective markers for early identification and behavioral intervention to prevent dementia and mild cognitive impairment in clinical and community settings. OBJECTIVE To investigate the association between salivary alpha-amylase as an objective measure of psychological stress response and mild cognitive impairment for the implication of psychological stress in the development of mild cognitive impairment. DESIGN, SETTING, AND PARTICIPANTS This cross-sectional study involved 865 participants aged ≥ 65 years. A saliva sample was collected in the morning, and the levels of salivary alpha-amylase were assayed. Mild cognitive impairment was evaluated using the Japanese version of the Montreal Cognitive Assessment; a score < 26 was indicative of mild cognitive impairment. A multivariable logistic regression model was used to examine the association of salivary alpha-amylase and mild cognitive impairment after adjusting for age, sex, current drinking status, current smoking status, body mass index, hypertension, diabetes mellitus, physical activity, education, social support, social network, and heart rate variability. RESULTS Salivary alpha-amylase was associated with mild cognitive impairment (the multivariable-adjusted odds ratio [95% confidence interval] for the 1-standard deviation increment of log-transformed salivary alpha-amylase was 1.24 [1.07-1.44]). This significant association persisted after adjusting for various confounding factors. CONCLUSION Elevation of salivary alpha-amylase was associated with mild cognitive impairment among Japanese community-dwelling older adults. This suggests that salivary alpha-amylase is a useful objective marker of psychological stress responses associated with mild cognitive impairment.
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Affiliation(s)
- N Yamane
- Takeshi Tanigawa, MD, PhD, Department of Public Health, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan. Phone: +81 (3) 5802-1049 Fax: +81 (3) 3814-0305,
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13
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Shiba T, Komatsu K, Sudo T, Sawafuji R, Saso A, Ueda S, Watanabe T, Nemoto T, Kano C, Nagai T, Ohsugi Y, Katagiri S, Takeuchi Y, Kobayashi H, Iwata T. Comparison of Periodontal Bacteria of Edo and Modern Periods Using Novel Diagnostic Approach for Periodontitis With Micro-CT. Front Cell Infect Microbiol 2021; 11:723821. [PMID: 34616690 PMCID: PMC8488429 DOI: 10.3389/fcimb.2021.723821] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 08/17/2021] [Indexed: 11/07/2022] Open
Abstract
Ancient dental calculus, formed from dental plaque, is a rich source of ancient DNA and can provide information regarding the food and oral microbiology at that time. Genomic analysis of dental calculus from Neanderthals has revealed the difference in bacterial composition of oral microbiome between Neanderthals and modern humans. There are few reports investigating whether the pathogenic bacteria of periodontitis, a polymicrobial disease induced in response to the accumulation of dental plaque, were different between ancient and modern humans. This study aimed to compare the bacterial composition of the oral microbiome in ancient and modern human samples and to investigate whether lifestyle differences depending on the era have altered the bacterial composition of the oral microbiome and the causative bacteria of periodontitis. Additionally, we introduce a novel diagnostic approach for periodontitis in ancient skeletons using micro-computed tomography. Ancient 16S rDNA sequences were obtained from 12 samples at the Unko-in site (18th-19th century) of the Edo era (1603–1867), a characteristic period in Japan when immigrants were not accepted. Furthermore, modern 16S rDNA data from 53 samples were obtained from a database to compare the modern and ancient microbiome. The microbial co-occurrence network was analyzed based on 16S rDNA read abundance. Eubacterium species, Mollicutes species, and Treponema socranskii were the core species in the Edo co-occurrence network. The co-occurrence relationship between Actinomyces oricola and Eggerthella lenta appeared to have played a key role in causing periodontitis in the Edo era. However, Porphyromonas gingivalis, Fusobacterium nucleatum subsp. vincentii, and Prevotella pleuritidis were the core and highly abundant species in the co-occurrence network of modern samples. These results suggest the possibility of differences in the pathogens causing periodontitis during different eras in history.
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Affiliation(s)
- Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Keiji Komatsu
- Department of Lifetime Oral Health Care Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takeaki Sudo
- Institute of Education, Tokyo Medical and Dental University, Tokyo, Japan
| | - Rikai Sawafuji
- Department of Evolutionary Studies of Biosystems, The Graduate University for Advanced Studies (SOKENDAI), Kanagawa, Japan
| | - Aiko Saso
- Department of Physical Therapy, Faculty of Rehabilitation, Niigata University of Health and Welfare, Niigata, Japan
| | - Shintaroh Ueda
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan.,Department of Legal Medicine, Toho University School of Medicine, Tokyo, Japan
| | - Takayasu Watanabe
- Department of Chemistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Takashi Nemoto
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Chihiro Kano
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Nagai
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroaki Kobayashi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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14
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Saida H, Fukuba S, Shiba T, Komatsu K, Iwata T, Nitta H. Two-stage approach for class II mandibular furcation defect with insufficient keratinized mucosa: a case report with 3 years' follow-up. J Int Med Res 2021; 49:3000605211044595. [PMID: 34528469 PMCID: PMC8451261 DOI: 10.1177/03000605211044595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Periodontal regenerative treatment is useful for intrabony defects and furcation involvement, but is difficult when there is insufficient keratinized mucosa to cover and maintain the regenerative material, particularly in the mandibular molar region. We report the case of a 27-year-old woman who underwent a two-stage surgical approach for a class II furcation defect with gingival recession and insufficient keratinized mucosal width (KMW) and vestibular depth at the mandibular left first molar. We first improved the KMW and keratinized mucosal thickness using an epithelial embossed connective tissue graft with enamel matrix derivative, and then focused on periodontal regeneration at the furcation defect using an enamel matrix derivative and a bovine-derived xenograft. Probing depth reduction, clinical attachment gain, horizontal probing depth reduction, KMW gain, and gingival recession reduction were observed 3 years postoperatively. This case report suggests that this novel staged approach may be effective for treating furcation defects with insufficient keratinized mucosa, thus providing useful insights into periodontal regeneration therapy.
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Affiliation(s)
- Hiroyuki Saida
- Private Practice, Saitama, Japan.,Department of General Dentistry, Graduate School of Medical and Dental Sciences, 13100Tokyo Medical and Dental University, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shunsuke Fukuba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, 13100Tokyo Medical and Dental University, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, 13100Tokyo Medical and Dental University, Tokyo Medical and Dental University, Tokyo, Japan
| | - Keiji Komatsu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, 13100Tokyo Medical and Dental University, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, 13100Tokyo Medical and Dental University, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroshi Nitta
- Oral Diagnosis and General Dentistry, Dental Hospital, 13100Tokyo Medical and Dental University, Tokyo Medical and Dental University, Tokyo, Japan
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15
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Lin P, Niimi H, Ohsugi Y, Tsuchiya Y, Shimohira T, Komatsu K, Liu A, Shiba T, Aoki A, Iwata T, Katagiri S. Application of Ligature-Induced Periodontitis in Mice to Explore the Molecular Mechanism of Periodontal Disease. Int J Mol Sci 2021; 22:ijms22168900. [PMID: 34445604 PMCID: PMC8396362 DOI: 10.3390/ijms22168900] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/07/2021] [Accepted: 08/10/2021] [Indexed: 02/06/2023] Open
Abstract
Periodontitis is an inflammatory disease characterized by the destruction of the periodontium. In the last decade, a new murine model of periodontitis has been widely used to simulate alveolar bone resorption and periodontal soft tissue destruction by ligation. Typically, 3-0 to 9-0 silks are selected for ligation around the molars in mice, and significant bone loss and inflammatory infiltration are observed within a week. The ligature-maintained period can vary according to specific aims. We reviewed the findings on the interaction of systemic diseases with periodontitis, periodontal tissue destruction, the immunological and bacteriological responses, and new treatments. In these studies, the activation of osteoclasts, upregulation of pro-inflammatory factors, and excessive immune response have been considered as major factors in periodontal disruption. Multiple genes identified in periodontal tissues partly reflect the complexity of the pathogenesis of periodontitis. The effects of novel treatment methods on periodontitis have also been evaluated in a ligature-induced periodontitis model in mice. This model cannot completely represent all aspects of periodontitis in humans but is considered an effective method for the exploration of its mechanisms. Through this review, we aimed to provide evidence and enlightenment for future studies planning to use this model.
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Affiliation(s)
- Peiya Lin
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan; (P.L.); (Y.T.); (T.S.); (A.L.); (T.S.); (A.A.); (T.I.); (S.K.)
| | - Hiromi Niimi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan; (P.L.); (Y.T.); (T.S.); (A.L.); (T.S.); (A.A.); (T.I.); (S.K.)
- Correspondence: (H.N.); (Y.O.); Tel.: +81-3-5803-5488 (H.N. & Y.O.)
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan; (P.L.); (Y.T.); (T.S.); (A.L.); (T.S.); (A.A.); (T.I.); (S.K.)
- Correspondence: (H.N.); (Y.O.); Tel.: +81-3-5803-5488 (H.N. & Y.O.)
| | - Yosuke Tsuchiya
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan; (P.L.); (Y.T.); (T.S.); (A.L.); (T.S.); (A.A.); (T.I.); (S.K.)
| | - Tsuyoshi Shimohira
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan; (P.L.); (Y.T.); (T.S.); (A.L.); (T.S.); (A.A.); (T.I.); (S.K.)
| | - Keiji Komatsu
- Department of Lifetime Oral Health Care Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan;
| | - Anhao Liu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan; (P.L.); (Y.T.); (T.S.); (A.L.); (T.S.); (A.A.); (T.I.); (S.K.)
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan; (P.L.); (Y.T.); (T.S.); (A.L.); (T.S.); (A.A.); (T.I.); (S.K.)
| | - Akira Aoki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan; (P.L.); (Y.T.); (T.S.); (A.L.); (T.S.); (A.A.); (T.I.); (S.K.)
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan; (P.L.); (Y.T.); (T.S.); (A.L.); (T.S.); (A.A.); (T.I.); (S.K.)
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8549, Japan; (P.L.); (Y.T.); (T.S.); (A.L.); (T.S.); (A.A.); (T.I.); (S.K.)
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16
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Shimohira T, Niimi H, Ohsugi Y, Tsuchiya Y, Morita K, Yoshida S, Hatasa M, Shiba T, Kadokura H, Yokose S, Katagiri S, Iwata T, Aoki A. Low-Level Erbium-Doped Yttrium Aluminum Garnet Laser Irradiation Induced Alteration of Gene Expression in Osteogenic Cells from Rat Calvariae. Photobiomodul Photomed Laser Surg 2021; 39:566-577. [PMID: 34339325 DOI: 10.1089/photob.2020.4958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Objective: The aim of this study was to investigate the effect of low-level erbium-doped yttrium aluminum garnet (Er:YAG) laser irradiation on gene expression in osteogenic cells from rat calvariae. Background: Previous studies showed beneficial effects of laser irradiation on bone-related cells. However, few studies have examined the gene expression alteration by laser irradiation on osteogenic cells in a calcified condition. Materials and methods: Osteogenic cells were prepared by culturing rat calvarial osteoblast-like cells in osteoinductive medium for 21 days. The cells at the bottom of the culture dish were irradiated with Er:YAG laser (wavelength: 2.94 μm, energy density: 3.1 and 8.2 J/cm2) positioned at distance of 25 cm. Lactate dehydrogenase (LDH) assay of the irradiated cells was performed. After screening for genes related to bone formation, mechanotransduction, and thermal effect by quantitative polymerase chain reaction (qPCR), gene expression at 3 h after 3.1 J/cm2 irradiation was comprehensively analyzed using microarray. Results: No dramatical increase in surface temperature and LDH activities after laser irradiation were observed. Sost expression was significantly reduced at 3 h after 3.1 J/cm2 irradiation. Bcar1 and Hspa1a expression was significantly increased following 8.2 J/cm2 irradiation. Microarray analysis identified 116 differentially expressed genes. Gene set enrichment analysis showed enrichment of histone H3-K9 methylation and modification gene sets. Conclusions: Er:YAG laser irradiation, especially at 3.1 J/cm2, showed positive effect on the expression of genes related to bone formation in osteogenic cells, without inducing significant cell damage. These findings may represent critical mechanisms of early bone formation after Er:YAG laser irradiation.
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Affiliation(s)
- Tsuyoshi Shimohira
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hiromi Niimi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yosuke Tsuchiya
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kazuki Morita
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Sumiko Yoshida
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Masahiro Hatasa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hiroshi Kadokura
- Division of Endodontic and Operative Dentistry, Department of Restorative and Biomaterials Sciences, School of Dentistry, Meikai University, Saitama, Japan
| | - Satoshi Yokose
- Division of Endodontic and Operative Dentistry, Department of Restorative and Biomaterials Sciences, School of Dentistry, Meikai University, Saitama, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Akira Aoki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Shiba T, Watanabe T, Komatsu K, Koyanagi T, Nemoto T, Ohsugi Y, Michi Y, Katagiri S, Takeuchi Y, Ishihara K, Iwata T. Non-surgical treatment for periodontitis and peri-implantitis: longitudinal clinical and bacteriological findings-A case report with a 7-year follow-up evaluation. SAGE Open Med Case Rep 2021; 9:2050313X211029154. [PMID: 34285805 PMCID: PMC8261847 DOI: 10.1177/2050313x211029154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 06/11/2021] [Indexed: 12/12/2022] Open
Abstract
The aim of this report is to show that periodontitis and peri-implantitis with horizontal bone resorption in a 68-year-old male patient were successfully treated by non-surgical treatment. Scaling with an ultrasonic device was performed for moderate periodontitis around the mandibular left first premolar and moderate peri-implantitis around the maxillary right molar implants. Root planing with a metal curette was performed for the periodontal site, and debridement with a plastic curette was performed for the peri-implant site. A month after treatment, probing depth decreased from 5 to 2 mm at the periodontal site and 8 to 3 mm at the peri-implant site. The investigation of bacterial composition by sequencing the 16S rRNA gene amplicons showed that the composition similarly changed at both sites, 5 years after treatment; the change reflected the typical recovery of periodontitis. The clinical condition was maintained for 7 years after treatment at both sites. This was a successful case of non-surgical treatment for peri-implantitis with horizontal bone resorption, promoting recovery of the microbiota from dysbiotic shift.
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Affiliation(s)
- Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takayasu Watanabe
- Department of Chemistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Keiji Komatsu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tatsuro Koyanagi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takashi Nemoto
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuyuki Michi
- Department of Oral and Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | | | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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18
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Shimogishi M, Watanabe T, Shibasaki M, Shiba T, Komatsu K, Nemoto T, Ishihara K, Nakano Y, Iwata T, Kasugai S, Nakagawa I. Patient-specific establishment of bacterial composition within the peri-implant microbiota during the earliest weeks after implant uncovering. J Periodontal Res 2021; 56:964-971. [PMID: 34057208 DOI: 10.1111/jre.12898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 04/15/2021] [Accepted: 05/13/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND OBJECTIVE Dysbiosis, a loss of balance in the microbiota, is a potential factor of peri-implantitis. However, compositional change of the peri-implant microbiota soon after implant uncovering is still unknown. In this study, bacterial composition in the peri-implant sulcus was examined to understand the establishment of bacterial composition within the peri-implant microbiota during the earliest weeks after implant uncovering. METHODS Microbiota samples were collected at weeks 1, 2, 4, and 6 after stage-two surgery. Bacterial DNA was isolated from the samples, and a 16S rRNA gene library was constructed. Sequence reads were obtained using a high-throughput sequencing platform and were taxonomically assigned at the phylum and genus levels. RESULTS Alpha diversity indices, which did not include taxonomic information, were at similar levels throughout the four time points. At 1 and 2 weeks, the bacterial composition was similar among patients with the predominance of Firmicutes and Proteobacteria. However, the composition was diverse at 4 and 6 weeks and significantly dissimilar to the composition at 1 week. CONCLUSIONS At 1 week, the peri-implant microbiota was already formed with alpha diversity as high as that at the later time points. However, the bacterial composition was not highly dissimilar among patients at 1 week. The composition changed over the passage of several weeks and was specific for each patient.
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Affiliation(s)
- Masahiro Shimogishi
- Department of Oral Implantology and Regenerative Dental Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takayasu Watanabe
- Department of Chemistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Masaki Shibasaki
- Department of Oral Implantology and Regenerative Dental Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Keiji Komatsu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takashi Nemoto
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | | | - Yoshio Nakano
- Department of Chemistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shohei Kasugai
- Department of Oral Implantology and Regenerative Dental Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ichiro Nakagawa
- Department of Microbiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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19
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Yang J, Liu Q, Shiba T, Ji C, Iwata T, Jiang T. Application of digital prosthodontics and connective tissue grafting in the management of peri-implant mucosal recession around a malpositioned 1-piece implant: A clinical report. J Prosthet Dent 2021; 128:1145-1151. [PMID: 34030887 DOI: 10.1016/j.prosdent.2021.03.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 03/11/2021] [Accepted: 03/11/2021] [Indexed: 10/21/2022]
Abstract
This clinical report describes a conservative approach to improve an unesthetic implant-supported crown and peri-implant mucosal recession around a malpositioned, 1-piece implant in the maxillary right central incisor region by using digital technology. In such clinical situations, the implants are usually removed because of an unpredictable definitive esthetic outcome. However, this clinical report describes the preservation of such a compromised implant by improving the esthetic outcome with a connective-tissue graft, and a digital approach used a 1-step preformed zirconia coping technique with an appropriate emergence profile.
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Affiliation(s)
- Jingwen Yang
- Attending Doctor, Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Disease & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatlogy & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materals, Beijing, PR China
| | - Qi Liu
- Private practice, Beijing, PR China
| | - Takahiko Shiba
- Former ITI Scholar, ITI Scholarship Center, Peking University School and Hospital of Stomatology, Beijing, PR China; Assistant Professor, Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Chao Ji
- Honorary Clinical Assistant Professor, Department of Periodontology and Implant Dentistry, Faculty of Dentistry, University of Hong Kong, Hong Kong SAR, PR China
| | - Takanori Iwata
- Professor and Chair, Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ting Jiang
- Professor, Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Disease & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatlogy & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materals, Beijing, PR China
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20
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Hatasa M, Ohsugi Y, Katagiri S, Yoshida S, Niimi H, Morita K, Tsuchiya Y, Shimohira T, Sasaki N, Maekawa S, Shiba T, Hirota T, Tohara H, Takahashi H, Nitta H, Iwata T. Endotoxemia by Porphyromonas gingivalis Alters Endocrine Functions in Brown Adipose Tissue. Front Cell Infect Microbiol 2021; 10:580577. [PMID: 33542905 PMCID: PMC7850987 DOI: 10.3389/fcimb.2020.580577] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 12/03/2020] [Indexed: 01/11/2023] Open
Abstract
Improvement of obesity is important for increasing longevity. The characteristics, size, and function of adipocytes are altered in patients with obesity. Adipose tissue is not only an energy storage but also an endocrine organ. Alteration of endocrine activities in adipose tissue, among them the functional decline of brown adipose tissue (BAT), is associated with obesity. Periodontal disease is a risk factor for systemic diseases since endotoxemia is caused by periodontal bacteria. However, the effect of periodontal disease on obesity remains unclear. Thus, this study aimed to investigate the effect of endotoxemia due to Porphyromonas gingivalis, a prominent cause of periodontal disease, on the BAT. Herein, endotoxemia was induced in 12-week-old C57BL/6J mice through intravenous injection of sonicated 108 CFU of P. gingivalis (Pg) or saline (control [Co]) once. Eighteen hours later, despite no inflammatory M1 macrophage infiltration, inflammation-related genes were upregulated exclusively in the BAT of Pg mice compared with Co mice. Although no marked histological changes were observed in adipose tissues, expressions of genes related to lipolysis, Lipe and Pnpla2 were downregulated after P. gingivalis injection in BAT. Furthermore, expression of Pparg and Adipoq was downregulated only in the BAT but not in the white adipose tissues, along with downregulation of Ucp1 and Cidea expression, which are BAT-specific markers, in Pg mice. Microarray analysis of the BAT showed 106 differentially expressed genes between Co and Pg mice. Gene set enrichment analysis revealed that the cholesterol homeostasis gene set and PI3/Akt/mTOR signaling gene set in BAT were downregulated, whereas the TGF-β signaling gene set was enriched in Pg mice. Overall, intravenous injection of sonicated P. gingivalis altered the endocrine functions of the BAT in mice. This study indicates that endotoxemia by P. gingivalis potentially affects obesity by disrupting BAT function.
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Affiliation(s)
- Masahiro Hatasa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Sumiko Yoshida
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hiromi Niimi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kazuki Morita
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yosuke Tsuchiya
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tsuyoshi Shimohira
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Naoki Sasaki
- Oral Diagnosis and General Dentistry, Dental Hospital, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shogo Maekawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tomomitsu Hirota
- Division of Molecular Genetics, Research Center for Medical Sciences, The Jikei University School of Medicine, Tokyo, Japan
| | - Haruka Tohara
- Dysphagia Rehabilitation, Department of Gerontology and Gerodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hirokazu Takahashi
- Division of Metabolism and Endocrinology, Facility of Medicine, Saga University, Saga, Japan.,Liver Center, Saga University Hospital, Saga, Japan
| | - Hiroshi Nitta
- Oral Diagnosis and General Dentistry, Dental Hospital, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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21
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Kataoka A, Katagiri S, Kawashima H, Nagura F, Nara Y, Hioki H, Nakashima M, Sasaki N, Hatasa M, Maekawa S, Ohsugi Y, Shiba T, Watanabe Y, Shimokawa T, Iwata T, Kozuma K. Association between periodontal bacteria and degenerative aortic stenosis: a pilot study. J Periodontal Implant Sci 2021; 51:226-238. [PMID: 34387043 PMCID: PMC8367646 DOI: 10.5051/jpis.2006040302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 12/15/2020] [Accepted: 03/05/2021] [Indexed: 11/10/2022] Open
Abstract
Purpose Although several reports have described the relationship between periodontal disease and cardiovascular disease, information about the association between periodontal disease and the progression of degenerative aortic stenosis (AS) is lacking. Therefore, we performed a retrospective, single-center, pilot study to provide insight into this potential association. Methods Data from 45 consecutive patients (19 men; median age, 83 years) with mild or moderate degenerative aortic stenosis were analyzed for a mean observation period of 3.3±1.9 years. The total amount of Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis and titers of serum immunoglobulin G (IgG) against periodontal bacteria and high-sensitivity C-reactive protein (hs-CRP) were evaluated. Aortic valve area (AVA), maximal velocity (Vmax), mean pressure gradient (mean PG), and the Doppler velocity index (DVI) were evaluated. The change in each parameter per year ([ParameterLATEST–ParameterBASELINE]/Follow-up Years) was calculated from the retrospective follow-up echocardiographic data (baseline vs. the most recently collected data [latest]). Results No correlation was found between the concentration of periodontopathic bacteria in the saliva and AS status/progression. The anti-P. gingivalis antibody titer in the serum showed a significant positive correlation with AVA and DVI. Additionally, there was a negative correlation between the anti-P. gingivalis IgG antibody titer and mean PG. The hs-CRP concentration showed positive correlations with Vmax and mean PG. Meanwhile, a negative correlation was observed between the anti-P. gingivalis IgG antibody titer and ΔAVA/year and Δmean PG/year. The hs-CRP concentration showed positive correlations with Vmax and mean PG, and it was significantly higher in patients with rapid aortic stenosis progression (ΔAVA/year <−0.1) than in their counterparts. Conclusions Our results suggest that periodontopathic bacteria such as A. actinomycetemcomitans and P. gingivalis are not directly related to the status/progression of degenerative AS. However, inflammation and a lower immune response may be associated with disease progression.
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Affiliation(s)
- Akihisa Kataoka
- Division of Cardiology, Department of Medicine, Teikyo University, Tokyo, Japan.
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Hideyuki Kawashima
- Division of Cardiology, Department of Medicine, Teikyo University, Tokyo, Japan
| | - Fukuko Nagura
- Division of Cardiology, Department of Medicine, Teikyo University, Tokyo, Japan
| | - Yugo Nara
- Division of Cardiology, Department of Medicine, Teikyo University, Tokyo, Japan
| | - Hirofumi Hioki
- Division of Cardiology, Department of Medicine, Teikyo University, Tokyo, Japan
| | - Makoto Nakashima
- Division of Cardiology, Department of Medicine, Teikyo University, Tokyo, Japan
| | - Naoki Sasaki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masahiro Hatasa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shogo Maekawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yusuke Watanabe
- Division of Cardiology, Department of Medicine, Teikyo University, Tokyo, Japan
| | - Tomoki Shimokawa
- Department of Cardiovascular Surgery, Teikyo University, Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ken Kozuma
- Division of Cardiology, Department of Medicine, Teikyo University, Tokyo, Japan
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22
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Komatsu K, Shiba T, Takeuchi Y, Watanabe T, Koyanagi T, Nemoto T, Shimogishi M, Shibasaki M, Katagiri S, Kasugai S, Iwata T. Discriminating Microbial Community Structure Between Peri-Implantitis and Periodontitis With Integrated Metagenomic, Metatranscriptomic, and Network Analysis. Front Cell Infect Microbiol 2020; 10:596490. [PMID: 33425781 PMCID: PMC7793907 DOI: 10.3389/fcimb.2020.596490] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 11/11/2020] [Indexed: 12/11/2022] Open
Abstract
Peri-implantitis and periodontitis are both polymicrobial diseases induced by subgingival plaque accumulation, with some differing clinical features. Studies on the microbial and gene transcription activity of peri-implantitis microbiota are limited. This study aimed to verify the hypothesis that disease-specific microbial and gene transcription activity lead to disease-specific clinical features, using an integrated metagenomic, metatranscriptomic, and network analysis. Metagenomic data in peri-implantitis and periodontitis were obtained from the same 21 subjects and metatranscriptomic data from 12 subjects were obtained from a database. The microbial co-occurrence network based on metagenomic analysis had more diverse species taxa and correlations than the network based on the metatranscriptomic analysis. Solobacterium moorei and Prevotella denticola had high activity and were core species taxa specific to peri-implantitis in the co-occurrence network. Moreover, the activity of plasmin receptor/glyceraldehyde-3-phosphate dehydrogenase genes was higher in peri-implantitis. These activity differences may increase complexity in the peri-implantitis microbiome and distinguish clinical symptoms of the two diseases. These findings should help in exploring a novel biomarker that assist in the diagnosis and preventive treatment design of peri-implantitis.
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Affiliation(s)
- Keiji Komatsu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takayasu Watanabe
- Department of Chemistry, Nihon University School of Dentistry, Tokyo, Japan
| | - Tatsuro Koyanagi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takashi Nemoto
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masahiro Shimogishi
- Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masaki Shibasaki
- Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shohei Kasugai
- Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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23
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Watanabe K, Katagiri S, Takahashi H, Sasaki N, Maekawa S, Komazaki R, Hatasa M, Kitajima Y, Maruyama Y, Shiba T, Komatsu K, Ohsugi Y, Tanaka K, Matsuzawa A, Hirota T, Tohara H, Eguchi Y, Anzai K, Hattori A, Iwata T. Porphyromonas gingivalis
impairs glucose uptake in skeletal muscle associated with altering gut microbiota. FASEB J 2020; 35:e21171. [DOI: 10.1096/fj.202001158r] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 09/30/2020] [Accepted: 10/26/2020] [Indexed: 01/13/2023]
Affiliation(s)
- Kazuki Watanabe
- Department of Periodontology Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
| | - Sayaka Katagiri
- Department of Periodontology Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
| | - Hirokazu Takahashi
- Division of Metabolism and Endocrinology Facility of Medicine Saga University Saga Japan
- Liver Center Saga University Hospital Saga University Saga Japan
| | - Naoki Sasaki
- Department of Periodontology Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
| | - Shogo Maekawa
- Department of Periodontology Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
| | - Rina Komazaki
- Department of Periodontology Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
| | - Masahiro Hatasa
- Department of Periodontology Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
| | - Yoichiro Kitajima
- Division of Metabolism and Endocrinology Facility of Medicine Saga University Saga Japan
- Department of Radiology Eguchi Hospital Saga Japan
| | - Yusuke Maruyama
- Department of Biology College of Liberal Arts and Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
| | - Takahiko Shiba
- Department of Periodontology Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
| | - Keiji Komatsu
- Department of Periodontology Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
| | - Yujin Ohsugi
- Department of Periodontology Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
| | - Kenichi Tanaka
- Division of Metabolism and Endocrinology Facility of Medicine Saga University Saga Japan
| | - Ayumi Matsuzawa
- Department of Epigenetics Medical Research Institute Tokyo Medical and Dental University (TMDU) Tokyo Japan
| | - Tomomitsu Hirota
- Division of Molecular Genetics Research Center for Medical Science The Jikei University School of Medicine Tokyo Japan
| | - Haruka Tohara
- Dysphagia Rehabilitation Department of Gerontology and Gerodontology Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
| | - Yuichiro Eguchi
- Liver Center Saga University Hospital Saga University Saga Japan
| | - Keizo Anzai
- Division of Metabolism and Endocrinology Facility of Medicine Saga University Saga Japan
| | - Atsuhiko Hattori
- Department of Biology College of Liberal Arts and Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
| | - Takanori Iwata
- Department of Periodontology Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University (TMDU) Tokyo Japan
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24
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Ogawa M, Katagiri S, Koyanagi T, Maekawa S, Shiba T, Ohsugi Y, Takeuchi Y, Ikawa T, Takeuchi S, Sekiuchi T, Arai Y, Kazama R, Wakabayashi N, Izumi Y, Iwata T. Accuracy of cone beam computed tomography in evaluation of palatal mucosa thickness. J Clin Periodontol 2020; 47:479-488. [PMID: 31912948 DOI: 10.1111/jcpe.13254] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 11/26/2019] [Accepted: 01/04/2020] [Indexed: 12/12/2022]
Abstract
AIM The purpose of this study was to investigate the accuracy of the measurement of palatal mucosa thickness using cone beam computed tomography (CBCT) and to create a conversion formula to evaluate palatal mucosa thickness more accurately. We then evaluated the palatal mucosa thickness in a Japanese population using CBCT and the conversion formula. MATERIALS AND METHODS We evaluated palatal mucosa thickness in 10 healthy subjects at 15 sites using CBCT, digital impression, and K file. Multiple regression analysis was performed to create a conversion formula to measure thickness accurately. We then obtained CBCT data from 174 patients retrospectively, applied the conversion formula, and evaluated palatal mucosa thickness. RESULTS Sites of measurement affected measurement error. Measurement using CBCT was 0.34 ± 0.04 mm smaller than actual measurement; therefore, a conversion formula was created. Male, age ≥60 years, and probing pocket depth ≥4 mm had significant and positive associations with palatal mucosa thickness; however, no association was observed between bleeding on probing and palatal mucosa thickness. CONCLUSION CBCT is useful for the noninvasive and accurate measurement of palatal mucosa thickness.
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Affiliation(s)
- Miho Ogawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tatsuro Koyanagi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shogo Maekawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiro Ikawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shogo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takayuki Sekiuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuki Arai
- Department of Removable Partial Prosthodontics, Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ryunosuke Kazama
- Department of Removable Partial Prosthodontics, Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Noriyuki Wakabayashi
- Department of Removable Partial Prosthodontics, Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuichi Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Oral Care Perio Center, Southern TOHOKU Research Institute for Neuroscience, Southern TOHOKU General Hospital, Fukushima, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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25
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Katagiri S, Shiba T, Tohara H, Yamaguchi K, Hara K, Nakagawa K, Komatsu K, Watanabe K, Ohsugi Y, Maekawa S, Iwata T. Re-initiation of Oral Food Intake Following Enteral Nutrition Alters Oral and Gut Microbiota Communities. Front Cell Infect Microbiol 2019; 9:434. [PMID: 31956606 PMCID: PMC6951430 DOI: 10.3389/fcimb.2019.00434] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 12/05/2019] [Indexed: 11/22/2022] Open
Abstract
Stroke is associated with multiple forms of disability, including dysphagia. Post-stroke dysphagia increases the risks of pneumonia and mortality and often results in cessation of oral feeding. However, appropriate rehabilitation methods can eventually lead to resumption of oral food intake. This study tried to clarify that re-initiating oral food intake could modify the composition of oral/gut microbial communities in patients with dysphagia. From 78 patients with sub-acute stage of stroke, 11 complete tube feeding subjects without taking antibiotics were enrolled and received rehabilitation for re-initiation of oral food intake, and 8 subjects were brought back to complete oral feeding. Oral and gut microbiota community profiles were evaluated using 16S rRNA sequencing of the saliva and feces samples before and after re-initiation of oral food intake in patients recovering from enteral nutrition under the same nutrient condition. Standard nutrition in the hospital was 1,840 kcal, including protein = 75 g, fat = 45 g, and carbohydrates = 280 g both for tube and oral feeding subjects. Oral food intake increased oral and gut microbiome diversity and altered the composition of the microbiome. Oral and gut microbiome compositions were drastically different; however, the abundance of family Carnobacteriaceae and genus Granulicatella was increased in both the oral and gut microbiome after re-initiation of oral food intake. Although oral microbiota showed more significant changes than the gut microbiota, metagenome prediction revealed the presence of more differentially enriched pathways in the gut. In addition, simpler co-occurrence networks of oral and gut microbiomes, indicating improved dysbiosis of the microbiome, were observed during oral feeding as compared to that during tube feeding. Oral food intake affects oral and gut microbiomes in patients recovering from enteral nutrition. Rehabilitation for dysphagia can modify systemic health by increasing the diversity and altering the composition and co-occurrence network structure of oral and gut microbial communities.
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Affiliation(s)
- Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Haruka Tohara
- Gerodontology and Oral Rehabilitation, Department of Gerontology and Gerodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kohei Yamaguchi
- Gerodontology and Oral Rehabilitation, Department of Gerontology and Gerodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Koji Hara
- Gerodontology and Oral Rehabilitation, Department of Gerontology and Gerodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kazuharu Nakagawa
- Gerodontology and Oral Rehabilitation, Department of Gerontology and Gerodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Keiji Komatsu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kazuki Watanabe
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yujin Ohsugi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shogo Maekawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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26
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Ikeda E, Shiba T, Ikeda Y, Suda W, Nakasato A, Takeuchi Y, Azuma M, Hattori M, Izumi Y. Japanese subgingival microbiota in health vs disease and their roles in predicted functions associated with periodontitis. Odontology 2019; 108:280-291. [PMID: 31502122 DOI: 10.1007/s10266-019-00452-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 08/05/2019] [Indexed: 12/12/2022]
Abstract
The present study aimed to identify and compare the microbial signatures between periodontally healthy and periodontitis subjects using 454 sequences of 16S rRNA genes. Subgingival plaque samples were collected from ten periodontally healthy subjects and ten matched chronic periodontitis patients. Bacterial DNA was extracted and next-generation sequencing of 16S rRNA genes was performed. The microbial composition differed between healthy subjects and periodontitis patients at all phylogenetic levels. Particularly, 16 species, including Lautropia mirabilis and Neisseria subflava predominated in healthy subjects, whereas nine species, including Porphyromonas gingivalis and Filifactor alocis predominated in periodontitis. UniFrac, a principal coordinate and network analysis, confirmed distinct community profiles in healthy subjects and periodontitis patients. Using predicted function profiling, pathways involved in phenylpropanoid, GPI-anchor biosynthesis, and metabolism of alanine, arginine, aspartate, butanoate, cyanoamino acid, fatty acid, glutamate, methane, proline, and vitamin B6 were significantly over-represented in periodontitis patients. These results highlight the oral microbiota alterations in microbial composition in periodontitis and suggest the genes and metabolic pathways associated with health and periodontitis. Our findings help to further elucidate microbial composition and interactions in health and periodontitis.
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Affiliation(s)
- Eri Ikeda
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo, 113-8549, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo, 113-8549, Japan
| | - Yuichi Ikeda
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo, 113-8549, Japan
| | - Wataru Suda
- RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan.,Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-0016, Japan
| | - Akinori Nakasato
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo, 113-8549, Japan
| | - Yasuo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo, 113-8549, Japan.
| | - Miyuki Azuma
- Department of Molecular Immunology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo, 113-8549, Japan
| | - Masahira Hattori
- RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan.,Faculty of Science and Engineering, Graduate School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo, 169-8555, Japan
| | - Yuichi Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo, 113-8549, Japan.,Oral Care Perio Center, Southern TOHOKU General Hospital, Southern TOHOKU Research Institute for Neuroscience, 7-115 Yatsuyamada, Koriyama, Fukushima, 963-8052, Japan
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27
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Tournadre C, Gritsch K, Takagi T, Shiba T, Mizutani K, Aoki A, Grosgogeat B. Cleaning potential of five different methods for peri‐implantitis treatment – An in‐vitro study. Clin Oral Implants Res 2019. [DOI: 10.1111/clr.278_13509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Kerstin Gritsch
- Facultè d'odontologie de Lyon – Universitè Claude Bernard Lyon 1, France
| | | | | | | | - Akira Aoki
- Tokyo Medical and Dental University, Japan
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28
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Ohtsu A, Takeuchi Y, Katagiri S, Suda W, Maekawa S, Shiba T, Komazaki R, Udagawa S, Sasaki N, Hattori M, Izumi Y. Influence of Porphyromonas gingivalis in gut microbiota of streptozotocin-induced diabetic mice. Oral Dis 2019; 25:868-880. [PMID: 30667148 DOI: 10.1111/odi.13044] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 12/21/2018] [Accepted: 01/12/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Increasing evidence suggests that periodontitis can exacerbate diabetes, and gut bacterial dysbiosis appears to be linked with the diabetic condition. The present study examined the effects of oral administration of the periodontopathic bacterium, Porphyromonas gingivalis, on the gut microbiota and systemic conditions in streptozotocin-induced diabetic mice. MATERIALS AND METHODS Diabetes was induced by streptozotocin injection in C57BL/6J male mice (STZ). STZ and wild-type (WT) mice were orally administered P. gingivalis (STZPg, WTPg) or saline (STZco, WTco). Feces were collected, and the gut microbiome was examined by 16S rRNA gene sequencing. The expression of genes related to inflammation, epithelial tight junctions, and glucose/fatty acid metabolism in the ileum or liver were examined by quantitative PCR. RESULTS The relative abundance of several genera, including Brevibacterium, Corynebacterium, and Facklamia, was significantly increased in STZco mice compared to WTco mice. The relative abundances of Staphylococcus and Turicibacter in the gut microbiome were altered by oral administration of P. gingivalis in STZ mice. STZPg mice showed higher concentrations of fasting blood glucose and inflammatory genes levels in the ileum, compared to STZco mice. CONCLUSIONS Oral administration of P. gingivalis altered the gut microbiota and aggravated glycemic control in streptozotocin-induced diabetic mice.
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Affiliation(s)
- Anri Ohtsu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Wataru Suda
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Department of Microbiology and Immunology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Shogo Maekawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Rina Komazaki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sayuri Udagawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Naoki Sasaki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masahira Hattori
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Faculty of Science and Engineering, Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Yuichi Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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29
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Guadilla V, Algora A, Tain JL, Estienne M, Fallot M, Sonzogni AA, Agramunt J, Äystö J, Briz JA, Cucoanes A, Eronen T, Fraile LM, Ganioğlu E, Gelletly W, Gorelov D, Hakala J, Jokinen A, Jordan D, Kankainen A, Kolhinen V, Koponen J, Lebois M, Le Meur L, Martinez T, Monserrate M, Montaner-Pizá A, Moore I, Nácher E, Orrigo SEA, Penttilä H, Pohjalainen I, Porta A, Reinikainen J, Reponen M, Rinta-Antila S, Rubio B, Rytkönen K, Shiba T, Sonnenschein V, Valencia E, Vedia V, Voss A, Wilson JN, Zakari-Issoufou AA. Large Impact of the Decay of Niobium Isomers on the Reactor ν[over ¯]_{e} Summation Calculations. Phys Rev Lett 2019; 122:042502. [PMID: 30768318 DOI: 10.1103/physrevlett.122.042502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 11/23/2018] [Indexed: 06/09/2023]
Abstract
Even mass neutron-rich niobium isotopes are among the principal contributors to the reactor antineutrino energy spectrum. They are also among the most challenging to measure due to the refractory nature of niobium, and because they exhibit isomeric states lying very close in energy. The β-intensity distributions of ^{100gs,100m}Nb and ^{102gs,102m}Nb β decays have been determined using the total absorption γ-ray spectroscopy technique. The measurements were performed at the upgraded Ion Guide Isotope Separator On-Line facility at the University of Jyväskylä. Here, the double Penning trap system JYFLTRAP was employed to disentangle the β decay of the isomeric states. The new data obtained in this challenging measurement have a large impact in antineutrino summation calculations. For the first time the discrepancy between the summation model and the reactor antineutrino measurements in the region of the shape distortion has been reduced.
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Affiliation(s)
- V Guadilla
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
| | - A Algora
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
- Institute of Nuclear Research of the Hungarian Academy of Sciences, Debrecen H-4026, Hungary
| | - J L Tain
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
| | - M Estienne
- Subatech, IMT-Atlantique, Université de Nantes, CNRS-IN2P3, F-44307 Nantes, France
| | - M Fallot
- Subatech, IMT-Atlantique, Université de Nantes, CNRS-IN2P3, F-44307 Nantes, France
| | - A A Sonzogni
- NNDC, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - J Agramunt
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
| | - J Äystö
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - J A Briz
- Subatech, IMT-Atlantique, Université de Nantes, CNRS-IN2P3, F-44307 Nantes, France
| | - A Cucoanes
- Subatech, IMT-Atlantique, Université de Nantes, CNRS-IN2P3, F-44307 Nantes, France
| | - T Eronen
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - L M Fraile
- Universidad Complutense, Grupo de Física Nuclear and UPARCOS, CEI Moncloa, E-28040 Madrid, Spain
| | - E Ganioğlu
- Department of Physics, Istanbul University, 34134 Istanbul, Turkey
| | - W Gelletly
- Department of Physics, University of Surrey, GU2 7XH Guildford, United Kingdom
| | - D Gorelov
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - J Hakala
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - A Jokinen
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - D Jordan
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
| | - A Kankainen
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - V Kolhinen
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - J Koponen
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - M Lebois
- Institut de Physique Nuclèaire d'Orsay, 91406 Orsay, France
| | - L Le Meur
- Subatech, IMT-Atlantique, Université de Nantes, CNRS-IN2P3, F-44307 Nantes, France
| | - T Martinez
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas, E-28040 Madrid, Spain
| | - M Monserrate
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
| | - A Montaner-Pizá
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
| | - I Moore
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - E Nácher
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
| | - S E A Orrigo
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
| | - H Penttilä
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - I Pohjalainen
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - A Porta
- Subatech, IMT-Atlantique, Université de Nantes, CNRS-IN2P3, F-44307 Nantes, France
| | - J Reinikainen
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - M Reponen
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | | | - B Rubio
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
| | - K Rytkönen
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - T Shiba
- Subatech, IMT-Atlantique, Université de Nantes, CNRS-IN2P3, F-44307 Nantes, France
| | | | - E Valencia
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
| | - V Vedia
- Universidad Complutense, Grupo de Física Nuclear and UPARCOS, CEI Moncloa, E-28040 Madrid, Spain
| | - A Voss
- University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - J N Wilson
- Institut de Physique Nuclèaire d'Orsay, 91406 Orsay, France
| | - A-A Zakari-Issoufou
- Subatech, IMT-Atlantique, Université de Nantes, CNRS-IN2P3, F-44307 Nantes, France
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30
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Ikeda E, Shiba T, Ikeda Y, Suda W, Nakasato A, Takeuchi Y, Azuma M, Hattori M, Izumi Y. Deep sequencing reveals specific bacterial signatures in the subgingival microbiota of healthy subjects. Clin Oral Investig 2019; 23:1489-1493. [PMID: 30680442 DOI: 10.1007/s00784-019-02805-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 01/11/2019] [Indexed: 02/04/2023]
Abstract
OBJECTIVES This study aimed to define the comprehensive bacterial flora of the healthy oral cavity by identifying and comparing bacterial species in different subgingival sites using 454 sequencing of 16S rRNA genes. MATERIALS AND METHODS Subgingival plaque samples were taken from six target teeth (central incisor, first premolar, and first molar in both the maxilla and mandible) of 10 periodontally healthy patients. Bacterial DNA was extracted and next-generation sequencing of 16S rRNA genes was performed. RESULTS Bacterial composition in phylum level was similar for all sites within the same individual irrespective of tooth location. Unweighted UniFrac distance values of microbiome also showed that average distance was significantly larger between subjects than between tooth locations of the same subjects. CONCLUSIONS The present results clarify the lack of effect of tooth location in the healthy subgingival microbiota. Results may suggest that any subgingival site can demonstrate similar subject-specific microbiota. CLINICAL RELEVANCE This investigation offers a better understanding of the uniqueness of the oral microbiome. The present study will facilitate sampling in future subgingival microbiological studies.
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Affiliation(s)
- Eri Ikeda
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuichi Ikeda
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Wataru Suda
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo, Japan
| | - Akinori Nakasato
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Miyuki Azuma
- Department of Molecular Immunology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masahira Hattori
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Faculty of Science and Engineering, Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Yuichi Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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31
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Estienne M, Fallot M, Giot L, Guadilla-Gomez V, Le Meur L, Porta A, Algora A, Taìn JL, Briz JA, Agramunt J, Äystö J, Cormon S, Cucoanes A, Eronen T, Fraile LM, Ganogliu E, Gelletly W, Gorelov D, Hakala J, Jokinen A, Jordan MD, Kankainen A, Kolhinen VS, Koponen J, Lebois M, Martinez T, Monserrate M, Montaner-Pizá A, Moore I, Nácher E, Orrigo SEA, Penttilä H, Pohjalainen I, Reinikainen J, Reponen M, Rinta-Antila S, Rytkönen K, Rubio B, Shiba T, Sonnenschein V, Sonzogni AA, Valencia E, Vedia V, Voss A, Weber C, Wilson JN, Zakari-Issoufou AA. Summation Calculations for Reactor Antineutrino Spectra, Decay Heat and Delayed Neutron Fractions Involving New TAGS Data and Evaluated Databases. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201921101001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Three observables of interest for present and future reactors depend on the β decay properties of the fission products: antineutrinos from reactors, the reactor decay heat and delayed neutron emission. In these proceedings, we present new results from summation calculations of the first two quantities quoted above, performed with evolved independent yields coupled with fission product decay data, from various nuclear data bases or models. New TAGS results from the latest experiment of the TAGS collaboration at the JYFL facility of Jyväskylä will be displayed as well as their impact on the antineutrino spectra and the decay heat associated to fission pulses of the main actinides.
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32
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Sasaki N, Katagiri S, Komazaki R, Watanabe K, Maekawa S, Shiba T, Udagawa S, Takeuchi Y, Ohtsu A, Kohda T, Tohara H, Miyasaka N, Hirota T, Tamari M, Izumi Y. Endotoxemia by Porphyromonas gingivalis Injection Aggravates Non-alcoholic Fatty Liver Disease, Disrupts Glucose/Lipid Metabolism, and Alters Gut Microbiota in Mice. Front Microbiol 2018; 9:2470. [PMID: 30405551 PMCID: PMC6207869 DOI: 10.3389/fmicb.2018.02470] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 09/27/2018] [Indexed: 12/17/2022] Open
Abstract
Many risk factors related to the development of non-alcoholic fatty liver disease (NAFLD) have been proposed, including the most well-known of diabetes and obesity as well as periodontitis. As periodontal pathogenic bacteria produce endotoxins, periodontal treatment can result in endotoxemia. The aim of this study was to investigate the effects of intravenous, sonicated Porphyromonas gingivalis (Pg) injection on glucose/lipid metabolism, liver steatosis, and gut microbiota in mice. Endotoxemia was induced in C57BL/6J mice (8 weeks old) by intravenous injection of sonicated Pg; Pg was deactivated but its endotoxin remained. The mice were fed a high-fat diet and administered sonicated Pg (HFPg) or saline (HFco) injections for 12 weeks. Liver steatosis, glucose metabolism, and gene expression in the liver were evaluated. 16S rRNA gene sequencing with metagenome prediction was performed on the gut microbiota. Compared to HFco mice, HFPg mice exhibited impaired glucose tolerance and insulin resistance along with increased liver steatosis. Liver microarray analysis demonstrated that 1278 genes were differentially expressed between HFco and HFPg mice. Gene set enrichment analysis showed that fatty acid metabolism, hypoxia, and TNFα signaling via NFκB gene sets were enriched in HFPg mice. Although sonicated Pg did not directly reach the gut, it changed the gut microbiota and decreased bacterial diversity in HFPg mice. Metagenome prediction in the gut microbiota showed enriched citrate cycle and carbon fixation pathways in prokaryotes. Overall, intravenous injection of sonicated Pg caused impaired glucose tolerance, insulin resistance, and liver steatosis in mice fed high-fat diets. Thus, blood infusion of Pg contributes to NAFLD and alters the gut microbiota.
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Affiliation(s)
- Naoki Sasaki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Rina Komazaki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kazuki Watanabe
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shogo Maekawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sayuri Udagawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Anri Ohtsu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takashi Kohda
- Department of Epigenetics, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan.,Japan Agency for Medical Research and Development (AMED), Tokyo, Japan.,Faculty of Life and Environmental Sciences, University of Yamanashi, Yamanashi, Japan
| | - Haruka Tohara
- Gerodontology and Oral Rehabilitation, Department of Gerontology and Gerodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Naoyuki Miyasaka
- Department of Comprehensive Reproductive Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomomitsu Hirota
- Research Center for Medical Science, Core Research Facilities for Basic Science (Molecular Genetics), The Jikei University School of Medicine, Tokyo, Japan
| | - Mayumi Tamari
- Research Center for Medical Science, Core Research Facilities for Basic Science (Molecular Genetics), The Jikei University School of Medicine, Tokyo, Japan
| | - Yuichi Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Udagawa S, Katagiri S, Maekawa S, Takeuchi Y, Komazaki R, Ohtsu A, Sasaki N, Shiba T, Watanabe K, Ishihara K, Sato N, Miyasaka N, Izumi Y. Effect of Porphyromonas gingivalis infection in the placenta and umbilical cord in pregnant mice with low birth weight. Acta Odontol Scand 2018; 76:433-441. [PMID: 29334319 DOI: 10.1080/00016357.2018.1426876] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Growing evidence indicates an association between periodontitis and delivery outcome; however, the mechanism is unclear. This study aimed to investigate the influence of Porphyromonas gingivalis (Pg) infection on delivery outcome in mice. MATERIALS AND METHODS Bacteremia was induced in pregnant Slc:ICR mice (8 weeks old) by intravenous injection of Pg. Mice were randomly divided into a control group (CO), and those receiving Pg injection at gestational day 1 (GD1), gestational day 15 (GD15) or every day (ED). Delivery outcome, Pg infection, and gene expression in the placenta and umbilical cord were evaluated. RESULTS Birth weight was lower in the ED and GD15 groups than in the CO group. A remarkable increase in anti-Pg IgG antibody was observed in the ED and GD1 groups, although Pg was not detected in the placenta or umbilical cord. mRNA expression of Tnfα and Il6 in the placenta, and Hif1α in the umbilical cord, was significantly increased in the ED group. Microarray analysis of the umbilical cord revealed increased expression of several genes including Orm1, Mgl2, Rps6ka3 and Trim15 in the ED group. CONCLUSIONS Pg infection during the third trimester caused low birth weight and inflammation in the placenta and umbilical cord.
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Affiliation(s)
- Sayuri Udagawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shogo Maekawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Rina Komazaki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Anri Ohtsu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Naoki Sasaki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kazuki Watanabe
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kazuyuki Ishihara
- Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
- Department of Microbiology, Tokyo Dental College, Tokyo, Japan
| | - Noriko Sato
- Department of Molecular Epidemiology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Naoyuki Miyasaka
- Department of Comprehensive Reproductive Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuichi Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Takahashi M, Kasuya S, Shiba T, Terada H, Noro M. INCREASED EPICARDIAL ADIPOSE TISSUE AND ARTERIAL STIFFNESS, USING CARDIO-ANKLE VASCULAR INDEX IN SLEEP APNOEA. J Hypertens 2018. [DOI: 10.1097/01.hjh.0000539217.57781.f8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Komazaki R, Katagiri S, Takahashi H, Maekawa S, Shiba T, Takeuchi Y, Kitajima Y, Ohtsu A, Udagawa S, Sasaki N, Watanabe K, Sato N, Miyasaka N, Eguchi Y, Anzai K, Izumi Y. Author Correction: Periodontal pathogenic bacteria, Aggregatibacter actinomycetemcomitans affect non-alcoholic fatty liver disease by altering gut microbiota and glucose metabolism. Sci Rep 2018. [PMID: 29531278 PMCID: PMC5847569 DOI: 10.1038/s41598-018-23000-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Rina Komazaki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.
| | - Hirokazu Takahashi
- Division of Metabolism and Endocrinology, Faculty of Medicine, Saga University, Saga, Japan.
| | - Shogo Maekawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yasuo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yoichiro Kitajima
- Division of Metabolism and Endocrinology, Faculty of Medicine, Saga University, Saga, Japan.,Eguchi Hospital, Ogi, Saga, Japan
| | - Anri Ohtsu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Sayuri Udagawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Naoki Sasaki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kazuki Watanabe
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Noriko Sato
- Department of Molecular Epidemiology, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Naoyuki Miyasaka
- Department of Comprehensive Reproductive Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | | | - Keizo Anzai
- Division of Metabolism and Endocrinology, Faculty of Medicine, Saga University, Saga, Japan
| | - Yuichi Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Abstract
PURPOSE The authors studied the effects of changes in packaging solution temperature on the development of glistening in acrylic intraocular lenses (AcrySof, Alcon). METHODS Glistening was examined by slit lamp at each condition. In Experiment 1, AcrySof lenses were soaked in physiologic saline adjusted to 15 degrees C and 37 degrees C in an incubator. In Experiment 2, AcrySof lenses were soaked in physiologic saline adjusted to 37 degrees C and 60 degrees C for 5 min, then stored in physiologic saline adjusted to 15 degrees C. In Experiment 3, glistening formation was induced in AcrySof lenses by soaking them in warm water (37 degrees C). The lenses were allowed to dry at 15 degrees C and then soaked in physiologic saline adjusted to 15 degrees C. After storage of dry AcrySof lenses at 37 degrees C in an incubator for 10 months followed by soaking in physiologic saline adjusted to 15 degrees C, glistening formation was evaluated in Experiment 4. RESULTS Glistening became observable after 1 month, despite the temperature having been lowered to 15 degrees C. No glistening was observed in the lenses soaked in physiologic saline adjusted to 37 degrees C after 5 min, but glistening was observed 1 month after soaking. When allowed to dry at 15 degrees C, the glistening decreased. After 1 month of soaking at 15 degrees C, glistening was again observable. CONCLUSIONS AcrySof lenses soaked in warm water for a short time may change characteristics, and therefore, close monitoring of the temperature and time of soaking is necessary to prevent glistening formation.
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Affiliation(s)
- T Shiba
- Department of Ophthalmology, Jikei University, School of Medicine, Tokyo, Japan.
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Komazaki R, Katagiri S, Takahashi H, Maekawa S, Shiba T, Takeuchi Y, Kitajima Y, Ohtsu A, Udagawa S, Sasaki N, Watanabe K, Sato N, Miyasaka N, Eguchi Y, Anzai K, Izumi Y. Periodontal pathogenic bacteria, Aggregatibacter actinomycetemcomitans affect non-alcoholic fatty liver disease by altering gut microbiota and glucose metabolism. Sci Rep 2017; 7:13950. [PMID: 29066788 PMCID: PMC5655179 DOI: 10.1038/s41598-017-14260-9] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 10/09/2017] [Indexed: 12/14/2022] Open
Abstract
Increasing evidence indicates that periodontitis affects non-alcoholic fatty liver disease (NAFLD). We examined the relationship between periodontal bacterial infection and clinical/biochemical parameters in 52 NAFLD patients. Anti-Aggregatibacter actinomycetemcomitans (Aa) antibody titers correlated positively with visceral fat, fasting plasma insulin, and HOMA-IR; and negatively with the liver/spleen ratio. C57BL/6J mice (8-weeks-old) were given Aa or saline (control) for 6 weeks, and were fed either normal chow (NCAa, NCco) or high-fat diet (HFAa and HFco). NCAa and HFAa mice presented impaired glucose tolerance and insulin resistance compared to control mice. HFAa mice showed higher hepatic steatosis than HFco animals. Liver microarray analysis revealed that 266 genes were differentially expressed between NCAa and NCco mice. Upregulated genes in Aa-administrated mice were enriched for glucagon signaling pathway, adipocytokine signaling pathway and insulin resistance. Consistently, plasma glucagon concentration was higher in NCAa mice. In addition, Akt phosphorylation was lower in the liver of NCAa/HFAa than in NCco/HFco mice. Based on 16S rRNA sequencing, Aa administration changed composition of the gut microbiota. Metagenome prediction in gut microbiota showed upregulation of fatty acid biosynthesis and downregulation of fatty acid degradation in Aa-administered mice. Thus, infection with Aa affects NAFLD by altering the gut microbiota and glucose metabolism.
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Affiliation(s)
- Rina Komazaki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Sayaka Katagiri
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.
| | - Hirokazu Takahashi
- Division of Metabolism and Endocrinology, Faculty of Medicine, Saga University, Saga, Japan.
| | - Shogo Maekawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takahiko Shiba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yasuo Takeuchi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yoichiro Kitajima
- Division of Metabolism and Endocrinology, Faculty of Medicine, Saga University, Saga, Japan.,Eguchi Hospital, Ogi, Saga, Japan
| | - Anri Ohtsu
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Sayuri Udagawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Naoki Sasaki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kazuki Watanabe
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Noriko Sato
- Department of Molecular Epidemiology, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Naoyuki Miyasaka
- Department of Comprehensive Reproductive Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | | | - Keizo Anzai
- Division of Metabolism and Endocrinology, Faculty of Medicine, Saga University, Saga, Japan
| | - Yuichi Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Tain J, Guadilla V, Valencia E, Algora A, Zakari-Issoufou AA, Rice S, Meur LL, Agramunt J, Äystö J, Batist L, Bowry M, Briz J, Bui V, Caballero-Folch R, Cano-Ott D, Cucoanes A, Elomaa VV, Eronen T, Estevez E, Estienne M, Fallot M, Farrelly G, Fraile L, Ganioglu E, Garcia A, Gelletly W, Gómez-Hornillos B, Gorelov D, Gorlychev V, Hakala J, Jokinen A, Jordan M, Kankainen A, Kolhinen V, Kondev F, Koponen J, Lebois M, Martínez T, Mason P, Mendoza E, Monserrate M, Montaner-Pizá A, Moore I, Nacher E, Orrigo S, Penttilä H, Podolyák Z, Pohjalainen I, Porta A, Regan P, Reinikainen J, Reponen M, Rinta-Antila S, Rissanen J, Rubio B, Rytkönen K, Shiba T, Sonnenschein V, Sonzogni A, Vedia V, Voss A, Wilson J. Strong γ-ray emission from neutron unbound states populated in β-decay: Impact on (n,γ) cross-section estimates. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201714601002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tokimasa S, Kitahara H, Nakayama T, Fujimoto Y, Shiba T, Shikama N, Nameki M, Himi T, Fukushima K, Kobayashi Y. P3694Multicenter research of bleeding risk between low dose prasugrel and standard dose clopidogrel in patients with coronary artery disease undergoing percutaneous coronary intervention. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yamaguchi M, Sakai N, Muraki H, Kawazoe Y, Shiba T, Manabe A, Nishino S. 0201 EFFECTS OF INTRAPERITONEAL INJECTION OF GINGKOLIDES AND BILOBALIDE ON SLEEP STUDY IN MICE. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Fallot M, Porta A, Meur LL, Briz J, Zakari-Issoufou AA, Guadilla V, Algora A, Taìn JL, Valencia E, Rice S, Bui V, Cormon S, Estienne M, Agramunt J, Äystö J, Batist L, Bowry M, Caballero-Folch R, Cano-Ott D, Cucoanes A, Elomaa VV, Eronen T, Estévez E, Farrelly G, Fraile L, Fleming M, Ganogliu E, Garcia A, Gelletly W, Gomez-Hornillos M, Gorelov D, Gorlychev V, Hakala J, Jokinen A, Jordan M, Kankainen A, Karvonen P, Kolhinen V, Kondev F, Koponen J, Lebois M, Martinez T, Mason P, Mendoza E, Molina F, Monserrate M, Montaner-Pizá A, Moore I, Nácher E, Orrigo S, Penttilä H, Perez A, Podolyák Z, Pohjalainen I, Regan P, Reinikainen J, Reponen M, Rinta-Antila S, Rissanen J, Rubio B, Shiba T, Sonnenschein V, Sonzogni A, Sublet JC, Vedia V, Voss A, Weber C, Wilson J. Total absorption spectroscopy of fission fragments relevant for reactor antineutrino spectra. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201714610002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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42
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Algora A, Rice S, Guadilla V, Tain J, Valencia E, Zakari-Issoufou AA, Agramunt J, Äystö J, Batist L, Briz J, Bowry M, Bui V, Caballero-Folch R, Cano-Ott D, Cucoanes A, Eronen T, Elomaa V, Estevez E, Estienne M, Fallot M, Farrelly G, Fraile L, Fleming M, Ganioglu E, Garcia A, Gelletly W, Gómez-Hornillos B, Gorelov D, Gorlychev V, Hakala J, Jokinen A, Jordan D, Kankainen A, Kolhinen V, Kondev F, Koponen J, Lebois M, Martinez T, Mason P, Mendoza E, Monserrate M, Montaner-Pizá A, Moore I, Nácher E, Orrigo S, Penttilä H, Podolyák Z, Pohjalainen I, Porta A, Regan P, Reinikainen J, Reponen M, Rinta-Antila S, Rissanen J, Rubio B, Rytkönen K, Shiba T, Sonnenschein V, Sonzogni A, Sublet JC, Vedia V, Voss A, Wilson J. Total absorption studies of high priority decays for reactor applications: 86Br and 91Rb. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201714610001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Guadilla V, Algora A, Tain J, Agramunt J, Äystö J, Briz J, Cucoanes A, Eronen T, Estienne M, Fallot M, Fraile L, Ganioğlu E, Gelletly W, Gorelov D, Hakala J, Jokinen A, Jordan D, Kankainen A, Kolhinen V, Koponen J, Lebois M, Martinez T, Monserrate M, Montaner-Pizá A, Moore I, Nácher E, Orrigo S, Penttilä H, Pohjalainen I, Porta A, Reinikainen J, Reponen M, Rinta-Antila S, Rubio B, Rytkönen K, Shiba T, Sonnenschein V, Sonzogni A, Valencia E, Vedia V, Voss A, Wilson J, Zakari-Issoufou AA. TAGS measurements of 100Nb ground and isomeric states and 140Cs for neutrino physics with the new DTAS detector. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201714610010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kawazoe Y, Shiba T, Nakamura R, Mizuno A, Tsutsumi K, Uematsu T, Yamaoka M, Shindoh M, Kohgo T. Induction of Calcification in MC3T3-E1 Cells by Inorganic Polyphosphate. J Dent Res 2016; 83:613-8. [PMID: 15271969 DOI: 10.1177/154405910408300806] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Relatively large amounts of inorganic polyphosphate [poly(P)] (400 μM) have been found in normal osteoblasts. The effect of poly(P) with an average chain length of 65 phosphate residues on cell calcification was therefore investigated with the use of MC3T3-E1 cells. Expression of both osteopontin and osteocalcin was induced by poly(P) (0.1 ~ 1 mM), and cells treated with poly(P) were strongly stained by alizarin red. In addition, the level of alkaline phosphatase activity induced in poly(P)-treated cells was two-fold higher than that in either orthophosphate-treated or control cells but not higher than that in cells treated with β-glycerophosphate and ascorbic acid. In contrast, however, polyphosphatase activities were activated by poly(P) treatment to levels up to six-fold greater than that in controls. MC3T3-E1 cells may utilize poly(P) as a phosphate source for calcification rather than phosphate sources that are mainly produced by ALPase. Poly(P)-dependent induction of polyphosphatase activities may therefore promote calcification in MC3T3-E1 cells.
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Affiliation(s)
- Y Kawazoe
- Regenetiss Co., Ltd., 1-5-17, Akabane, Okaya, Nagano 394-0002, Japan
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Porta A, Zakari-Issoufou AA, Fallot M, Algora A, Tain J, Valencia E, Rice S, Bui V, Cormon S, Estienne M, Agramunt J, Äystö J, Bowry M, Briz J, Caballero-Folch R, Cano-Ott D, Cucouanes A, Elomaa VV, Eronen T, Estévez E, Farrelly G, Garcia A, Gelletly W, Gomez-Hornillos M, Gorlychev V, Hakala J, Jokinen A, Jordan M, Kankainen A, Karvonen P, Kolhinen V, Kondev F, Martinez T, Mendoza E, Molina F, Moore I, Perez-Cerdán AB, Podolyák Z, Penttilä H, Regan P, Reponen M, Rissanen J, Rubio B, Shiba T, Sonzogni A, Weber C. Total Absorption Spectroscopy of Fission Fragments Relevant for Reactor Antineutrino Spectra and Decay Heat Calculations. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611108006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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46
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Zakari-Issoufou AA, Fallot M, Porta A, Algora A, Tain JL, Valencia E, Rice S, Bui VM, Cormon S, Estienne M, Agramunt J, Äystö J, Bowry M, Briz JA, Caballero-Folch R, Cano-Ott D, Cucoanes A, Elomaa VV, Eronen T, Estévez E, Farrelly GF, Garcia AR, Gelletly W, Gomez-Hornillos MB, Gorlychev V, Hakala J, Jokinen A, Jordan MD, Kankainen A, Karvonen P, Kolhinen VS, Kondev FG, Martinez T, Mendoza E, Molina F, Moore I, Perez-Cerdán AB, Podolyák Z, Penttilä H, Regan PH, Reponen M, Rissanen J, Rubio B, Shiba T, Sonzogni AA, Weber C. Total Absorption Spectroscopy Study of (92)Rb Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape. Phys Rev Lett 2015; 115:102503. [PMID: 26382674 DOI: 10.1103/physrevlett.115.102503] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Indexed: 06/05/2023]
Abstract
The antineutrino spectra measured in recent experiments at reactors are inconsistent with calculations based on the conversion of integral beta spectra recorded at the ILL reactor. (92)Rb makes the dominant contribution to the reactor antineutrino spectrum in the 5-8 MeV range but its decay properties are in question. We have studied (92)Rb decay with total absorption spectroscopy. Previously unobserved beta feeding was seen in the 4.5-5.5 region and the GS to GS feeding was found to be 87.5(25)%. The impact on the reactor antineutrino spectra calculated with the summation method is shown and discussed.
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Affiliation(s)
- A-A Zakari-Issoufou
- SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France
| | - M Fallot
- SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France
| | - A Porta
- SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France
| | - A Algora
- Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain
- Institute of Nuclear Research, MTA ATOMKI, Debrecen, 4026 Hungary
| | - J L Tain
- Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain
| | - E Valencia
- Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain
| | - S Rice
- Department of Physics, University of Surrey, Guildford GU27XH, United Kingdom
| | - V M Bui
- SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France
| | - S Cormon
- SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France
| | - M Estienne
- SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France
| | - J Agramunt
- Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain
| | - J Äystö
- Helsinki Institute of Physics, University of Helsinki, FI-00014 Helsinki, Finland
| | - M Bowry
- Department of Physics, University of Surrey, Guildford GU27XH, United Kingdom
| | - J A Briz
- SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France
| | | | - D Cano-Ott
- Centro de Investigaciones Energéticas Medioambientales Y Tecnológicas, E-28040 Madrid, Spain
| | - A Cucoanes
- SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France
| | - V-V Elomaa
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - T Eronen
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - E Estévez
- Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain
| | - G F Farrelly
- Department of Physics, University of Surrey, Guildford GU27XH, United Kingdom
| | - A R Garcia
- Centro de Investigaciones Energéticas Medioambientales Y Tecnológicas, E-28040 Madrid, Spain
| | - W Gelletly
- Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain
- Department of Physics, University of Surrey, Guildford GU27XH, United Kingdom
| | | | - V Gorlychev
- Universitat Politécnica de Catalunya (UPC), 08034 Barcelona, Spain
| | - J Hakala
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - A Jokinen
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - M D Jordan
- Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain
| | - A Kankainen
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - P Karvonen
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - V S Kolhinen
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - F G Kondev
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - T Martinez
- Centro de Investigaciones Energéticas Medioambientales Y Tecnológicas, E-28040 Madrid, Spain
| | - E Mendoza
- Centro de Investigaciones Energéticas Medioambientales Y Tecnológicas, E-28040 Madrid, Spain
| | - F Molina
- Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain
| | - I Moore
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - A B Perez-Cerdán
- Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain
| | - Zs Podolyák
- Department of Physics, University of Surrey, Guildford GU27XH, United Kingdom
| | - H Penttilä
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - P H Regan
- Department of Physics, University of Surrey, Guildford GU27XH, United Kingdom
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
| | - M Reponen
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - J Rissanen
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - B Rubio
- Instituto de Física Corpuscular (CSIC-Universitat de Valencia), Apartado Correos 22085, E-46071 Valencia, Spain
| | - T Shiba
- SUBATECH, CNRS/IN2P3, Université de Nantes, Ecole des Mines de Nantes, F-44307 Nantes, France
| | - A A Sonzogni
- National Nuclear Data Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - C Weber
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
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Feener EP, Xia P, Inoguchi T, Shiba T, Kunisaki M, King GL. Role of protein kinase C in glucose- and angiotensin II-induced plasminogen activator inhibitor expression. Contrib Nephrol 2015; 118:180-7. [PMID: 8744056 DOI: 10.1159/000425092] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- E P Feener
- Research Division, Joslin Diabetes Center, Boston, Mass., USA
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Shiba T, Kawamura M, Kouro T, Tanaka A, Tagami M, Yamazaki T, Sakamoto K, Mori Y. Combination regimen of statin/ezetimibe and reduction of sd-LDL-C for Japanese patients with type 2 diabetes (Research, A multicenter RCT). Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Matsukura K, Shiba T, Sasaki T, Yoshida K, Matsumura M. Dynamics of Neotyphodium uncinatum
and N
-formylloline in Italian ryegrass, and their relation to insect resistance in the field. J Appl Microbiol 2013; 116:400-7. [DOI: 10.1111/jam.12374] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 10/15/2013] [Accepted: 10/21/2013] [Indexed: 11/30/2022]
Affiliation(s)
- K. Matsukura
- Agro-Environment Research Division; NARO Kyushu Okinawa Agricultural Research Center; Koshi Kumamoto Japan
| | - T. Shiba
- Plant Protection Division; NARO Agricultural Research Center; Tsukuba Ibaraki Japan
| | - T. Sasaki
- Forage Grass Laboratory; Forage Crop Research Institute; Japan Grassland Agriculture & Forage Seed Association; Nasushiobara Tochigi Japan
| | - K. Yoshida
- Agro-Environment Research Division; NARO Kyushu Okinawa Agricultural Research Center; Koshi Kumamoto Japan
| | - M. Matsumura
- Agro-Environment Research Division; NARO Kyushu Okinawa Agricultural Research Center; Koshi Kumamoto Japan
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50
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Balogun EO, Balogun JB, Yusuf S, Inuwa HM, Ndams IS, Sheridan P, Inaoka DK, Shiba T, Harada S, Kita K, Esievo KAN, Nok AJ. Anemia amelioration by lactose infusion during trypanosomosis could be associated with erythrocytes membrane de-galactosylation. Vet Parasitol 2013; 199:259-63. [PMID: 24238624 DOI: 10.1016/j.vetpar.2013.10.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Revised: 10/16/2013] [Accepted: 10/19/2013] [Indexed: 12/28/2022]
Abstract
African trypanosomosis is a potentially fatal disease that is caused by extracellular parasitic protists known as African trypanosomes. These parasites inhabit the blood stream of their mammalian hosts and produce a number of pathological features, amongst which is anemia. Etiology of the anemia has been partly attributed to an autoimmunity-like mediated erythrophagocytosis of de-sialylated red blood cells (dsRBCs) by macrophages. Lactose infusion to infected animals has proven effective at delaying progression of the anemia. However, the mechanism of this anemia prevention is yet to be well characterized. Here, the hypothesis of a likely induced further modification of the dsRBCs was investigated. RBC membrane galactose (RBC m-GAL) and packed cell volume (PCV) were measured during the course of experimental trypanosomosis in mice infected with Trypanosoma congolense (stb 212). Intriguingly, while the membrane galactose on the RBCs of infected and lactose-treated mice (group D) decreased as a function of parasitemia, that of the lactose-untreated infected group (group C) remained relatively constant, as was recorded for the uninfected lactose-treated control (group B) animals. At the peak of infection, the respective cumulative percent decrease in PCV and membrane galactose were 30 and 185 for group D, and 84 and 13 for group C. From this observed inverse relationship between RBCs membrane galactose and PCV, it is logical to rationalize that the delay of anemia progression during trypanosomosis produced by lactose might have resulted from an induction of galactose depletion from dsRBCs, thereby preventing their recognition by the macrophages.
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Affiliation(s)
- E O Balogun
- Department of Biochemistry, Ahmadu Bello University, Zaria 2222, Nigeria; Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Department of Applied Biology, Graduate School of Science and Technology, Kyoto Institute of Technology, Sakyo-ku, Kyoto 606-8585, Japan.
| | - J B Balogun
- Department of Biological Sciences, Federal University Dutse, P.M.B. 7156, Dutse, Jigawa State, Nigeria
| | - S Yusuf
- Department of Physiology, Faculty of Biomedical Sciences, Kampala International University, Uganda
| | - H M Inuwa
- Department of Biochemistry, Ahmadu Bello University, Zaria 2222, Nigeria
| | - I S Ndams
- Department of Biological Sciences, Ahmadu Bello University, Zaria 2222, Nigeria
| | - P Sheridan
- Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - D K Inaoka
- Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - T Shiba
- Department of Applied Biology, Graduate School of Science and Technology, Kyoto Institute of Technology, Sakyo-ku, Kyoto 606-8585, Japan
| | - S Harada
- Department of Applied Biology, Graduate School of Science and Technology, Kyoto Institute of Technology, Sakyo-ku, Kyoto 606-8585, Japan
| | - K Kita
- Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - K A N Esievo
- Department of Veterinary Pathology and Microbiology, Ahmadu Bello University, Zaria 2222, Nigeria
| | - A J Nok
- Department of Biochemistry, Ahmadu Bello University, Zaria 2222, Nigeria
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