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Park HJ, Kim MK, Kim Y, Kim HJ, Park HR, Bae SK, Bae MK. Gastrin-releasing peptide receptor antagonist RC-3095 inhibits Porphyromonas gingivalis lipopolysaccharide-accelerated atherosclerosis by suppressing inflammatory responses in endothelial cells and macrophages. Inflamm Res 2024:10.1007/s00011-024-01934-0. [PMID: 39164592 DOI: 10.1007/s00011-024-01934-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/26/2024] [Accepted: 08/11/2024] [Indexed: 08/22/2024] Open
Abstract
OBJECTIVE Porphyromonas gingivalis (P. gingivalis), one of the major periodontopathogens, is associated with the progression and exacerbation of atherosclerosis. In this study, we aimed to investigate whether the gastrin-releasing peptide receptor antagonist, RC-3095, could attenuate P. gingivalis LPS-induced inflammatory responses in endothelial cells and macrophages, as well as atherosclerosis in an ApoE-/- mouse model treated with P. gingivalis LPS. METHODS The effect of RC-3095 on P. gingivalis LPS-induced endothelial inflammation was examined using HUVECs and rat aortic endothelium. THP-1 cells were polarized into M1 macrophages by exposure to P. gingivalis LPS, with or without RC-3095. The effect of RC-3095 on atherosclerosis progression was assessed in high-fat-fed male ApoE-/- mice through injections of P. gingivalis LPS, RC-3095, or a combination of both. RESULTS RC-3095 significantly reduced P. gingivalis LPS-induced leukocyte adhesion to endothelial cells and aortic endothelium by suppressing NF-κB-dependent expressions of ICAM-1 and VCAM-1. In addition, RC-3095 inhibited the P. gingivalis LPS-induced polarization of M1 macrophages by blocking the MAPK and NF-κB signaling pathways. Moreover, RC-3095 decreased the area of atherosclerotic lesions in ApoE-/- mice, which was accelerated by P. gingivalis LPS injection, and lowered the expressions of ICAM-1 and VCAM-1 in the aortic tissue of mice with atherosclerosis. CONCLUSIONS RC-3095 can alleviate P. gingivalis LPS-induced endothelial inflammation, macrophage polarization, and atherosclerosis progression, suggesting its potential as a therapeutic approach for periodontal pathogen-associated atherosclerosis.
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Affiliation(s)
- Hyun-Joo Park
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
- Periodontal Disease Signaling Network Research Center (MRC), School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
- Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
| | - Mi-Kyoung Kim
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
- Periodontal Disease Signaling Network Research Center (MRC), School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
| | - Yeon Kim
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
- Periodontal Disease Signaling Network Research Center (MRC), School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
- Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
| | - Hyung Joon Kim
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
- Periodontal Disease Signaling Network Research Center (MRC), School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
- Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
| | - Hae Ryoun Park
- Periodontal Disease Signaling Network Research Center (MRC), School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
- Department of Oral Pathology, School of Dentistry, Pusan National University, Yangsan, 50610, Korea
| | - Soo-Kyung Bae
- Periodontal Disease Signaling Network Research Center (MRC), School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
- Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
- Department of Dental Pharmacology, School of Dentistry, Pusan National University, Yangsan, 50612, South Korea
| | - Moon-Kyoung Bae
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan, 50612, South Korea.
- Periodontal Disease Signaling Network Research Center (MRC), School of Dentistry, Pusan National University, Yangsan, 50612, South Korea.
- Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, 50612, South Korea.
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Xu X, Li T, Tang J, Wang D, Zhou Y, Gou H, Li L, Xu Y. CXCR4-mediated neutrophil dynamics in periodontitis. Cell Signal 2024; 120:111212. [PMID: 38719020 DOI: 10.1016/j.cellsig.2024.111212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/26/2024] [Accepted: 05/05/2024] [Indexed: 05/20/2024]
Abstract
BACKGROUND AND OBJECTIVE Periodontitis is a common oral disease closely related to immune response and this study is aimed to identify the key immune-related pathogenic genes and analyze the infiltration and function of immune cells in the disease using bioinformatics methods. METHODS Transcriptome datasets and single-cell RNA sequencing (scRNA-seq) datasets were downloaded from the GEO database. We utilized weighted correlation network analysis and least absolute selection and shrinkage operator, protein-protein interaction network construction to screen out key pathogenic genes as well as conducted the cell-type identification by estimating relative subsets of RNA transcripts algorithm to analyze and characterize immune cell types in periodontal tissues. In addition to bioinformatics validations, clinical and cell samples were collected and mouse periodontitis models were constructed to validate the important role of key genes in periodontitis. RESULTS Bioinformatics analysis pointed out the positive correlation between CXCR4 expression and periodontitis, and revealed the increased infiltration of neutrophils in periodontal inflammatory. Similar results were obtained from clinical samples and animal models. In addition, the clustering and functional enrichment results based on CXCR4 expression levels included activation of immune response and cell migration, implying the possible function of CXCR4 on regulating neutrophil dynamics, which might contribute to periodontitis. Subsequent validation experiments confirmed that the increased expression of CXCR4 in neutrophils under periodontitis, where cell migration-related pathways also were activated. CONCLUSION CXCR4 could be the key pathogenic gene of periodontitis and CXCR4/CXCL12 signal axial might contribute to the development of periodontitis by mediating neutrophil dynamics, suggesting that CXCR4 could be a potential target to help identify novel strategies for the clinical diagnosis and treatment of periodontitis.
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Affiliation(s)
- Xuanwen Xu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China.; Department of Periodontology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China.; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China
| | - Tiange Li
- School of Stomatology, China Medical University, Shenyang 110122, China
| | - Jingqi Tang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China.; Department of Periodontology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China.; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China
| | - Danlei Wang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China.; Department of Periodontology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China.; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China
| | - Yi Zhou
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China.; Department of Periodontology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China.; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China
| | - Huiqing Gou
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China.; Department of Periodontology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China.; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China
| | - Lu Li
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China.; Department of Periodontology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China.; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China
| | - Yan Xu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing 210029, China.; Department of Periodontology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing 210029, China.; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China..
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Xie Z, Gao B, Liu J, He J, Liu Y, Gao F. Gallic Acid-Modified Polyethylenimine-Polypropylene Carbonate-Polyethylenimine Nanoparticles: Synthesis, Characterization, and Anti-Periodontitis Evaluation. ACS OMEGA 2024; 9:14475-14488. [PMID: 38559964 PMCID: PMC10976379 DOI: 10.1021/acsomega.4c00261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/06/2024] [Accepted: 03/01/2024] [Indexed: 04/04/2024]
Abstract
The aim of the research was to develop novel gallic acid (GA)-modified amphiphilic nanoparticles of polyethylenimine (PEI)-polypropylene carbonate (PPC)-PEI (PEPE) and comprehensively assess its properties as an antiperiodontitis nanoparticle targeting the Toll-like receptor (TLR). The first step is to evaluate the binding potential of GA to the core trigger receptors TLR2 and TLR4/MD2 for periodontitis using molecular docking techniques. Following this, we conducted NMR, transmission electron microscopy, and dynamic light scattering analyses on the synthesized PEPE nanoparticles. As the final step, we investigated the synthetic results and in vitro antiperiodontitis properties of GA-PEPE nanoparticles. The investigation revealed that GA exhibits potential for targeted binding to TLR2 and the TLR4/MD2 complex. Furthermore, we successfully developed 91.19 nm positively charged PEPE nanoparticles. Spectroscopic analysis indicated the successful synthesis of GA-modified PEPE. Additionally, CCK8 results demonstrated that GA modification significantly reduced the biotoxicity of PEPE. The in vitro antiperiodontitis properties assessment illustrated that 6.25 μM of GA-PEPE nanoparticles significantly reduced the expression of pro-inflammatory factors TNF-α, IL-1β, and IL-6. The GA-PEPE nanoparticles, with their targeted TLR binding capabilities, were found to possess excellent biocompatibility and antiperiodontitis properties. GA-PEPE nanoparticles will provide highly innovative input into the development of anti- periodontitis nanoparticles.
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Affiliation(s)
- Zunxuan Xie
- Department
of endodontics, Jilin University, Hospital
of stomatology, Changchun 130041, China
| | - Boyang Gao
- Department
of endodontics, Jilin University, Hospital
of stomatology, Changchun 130041, China
| | - Jinyao Liu
- Department
of endodontics, Jilin University, Hospital
of stomatology, Changchun 130041, China
| | - Jiaming He
- Department
of endodontics, Jilin University, Hospital
of stomatology, Changchun 130041, China
| | - Yuyan Liu
- Department
of endodontics, Jilin University, Hospital
of stomatology, Changchun 130041, China
| | - Fengxiang Gao
- Chinese
Academy of Sciences, Changchun Institute of Applied Chemistry, Changchun 130022, China
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Naghsh N, Yaghini J, Narimani T, Khodarahmi E. Antimicrobial efficacy of antiplaque agents of common toothpastes against Porphyromonas gingivalis and Streptococcus oralis: An in vitro study. Dent Res J (Isfahan) 2024; 21:20. [PMID: 38807660 PMCID: PMC11132204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 12/31/2023] [Accepted: 02/04/2024] [Indexed: 05/30/2024] Open
Abstract
Background This study was designed to evaluate the antimicrobial activity of common gum protection and antiplaque toothpastes against Porphyromonas gingivalis (P. gingivalis) and Streptococcus oralis (S. oralis) as important periodontal pathogens. Materials and Methods This experimental study investigated the antimicrobial activity of 15 commonly used toothpastes from different companies on the two common types of periopathogens, S. oralis and P. gingivalis . The antimicrobial activity of toothpaste was evaluated at three concentrations of 100%, 50%, and 25% and analyzed by agar well diffusion plate method and zone of inhibition. The obtained data were compared and statistically analyzed by SPSS software using one-way ANOVA and the least significant difference post hoc tests (α = 0.05). Results One-way ANOVA showed that the mean diameter of the two-bacterial zone of inhibition was significantly different at 100%, 50%, and 25% concentrations of toothpastes (P < 0.001). In general, the mean diameter of the zone of inhibition was greater at 100% concentration than the other two concentrations in all toothpastes. The highest zone of inhibition of the S. oralis was in the toothpastes containing tin. Further, the highest zone of inhibition of P. gingivalis was found in the triclosan-containing toothpastes. Conclusion Toothpastes containing triclosan had the most antimicrobial activity against P. gingivalis . Moreover, toothpastes containing tin compounds had the most antimicrobial effect against S. oralis .
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Affiliation(s)
- Narges Naghsh
- Department of Peridontics, Dental Implants Research Center Dental Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Jaber Yaghini
- Department of Peridontics, Dental Implants Research Center Dental Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Tahmineh Narimani
- Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elahe Khodarahmi
- Department of Endodontics, School of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Yu JS, Kim M, Cho IH, Sim YM, Hwang YS. Evidence Supporting Oral Hygiene Management by Owners through a Genetic Analysis of Dental Plaque Bacteria in Dogs. Vet Sci 2024; 11:96. [PMID: 38393114 PMCID: PMC10893504 DOI: 10.3390/vetsci11020096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/07/2024] [Accepted: 02/16/2024] [Indexed: 02/25/2024] Open
Abstract
With the increase in the number of households raising dogs and the reports of human-to-dog transmission of oral bacteria, concerns about dogs' oral health and the need for oral hygiene management are increasing. In this study, the owners' perceptions about their dogs' oral health and the frequency of oral hygiene were determined along with the analysis of dog dental plaque bacteria through metagenomic amplicon sequencing so as to support the need for oral hygiene management for dogs. Although the perception of 63.2% of the owners about their dogs' oral health was consistent with the veterinarian's diagnosis, the owners' oral hygiene practices regarding their dogs were very poor. The calculi index (CI) and gingiva index (GI) were lower in dogs who had their teeth brushed more than once a week (57.89%) than in dogs brushed less than once a month (42.10%); however, the difference was nonsignificant (CI: p = 0.479, GI: p = 0.840). Genomic DNA was extracted from dental plaque bacteria removed during dog teeth scaling, and metagenomic amplicons were sequenced. The 16S amplicons of 73 species were identified from among the plaque bacteria of the dogs. These amplicons were of oral disease-causing bacteria in humans and dogs. The 16S amplicon of Streptococcus mutans matched that of the human S. mutans, with type c identified as the main serotype. This result suggests that human oral bacteria can be transmitted to dogs. Therefore, considering the high frequency of contact between dogs and humans because of communal living and the current poor oral health of dogs, owners must improve the oral hygiene management of their dogs.
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Affiliation(s)
- Jeong suk Yu
- Yeah Dental Animal Clinic, Seolleung-ro 126-6, Gangnam-Gu, Seoul 06092, Republic of Korea
| | - Minhee Kim
- Department of Physical Therapy, College of Health Science, Eulji University, Seongnam 13135, Republic of Korea
| | - Il-Hoon Cho
- Department of Biomedical Laboratory Science, College of Health Science, Eulji University, Seongnam 13135, Republic of Korea
| | - Yu-Min Sim
- Department of Dental Hygiene, College of Health Science, Eulji University, Seongnam 13135, Republic of Korea
| | - Young Sun Hwang
- Department of Dental Hygiene, College of Health Science, Eulji University, Seongnam 13135, Republic of Korea
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Fik VB, Krynytskyi RP, Dudok OV, Podolіyk МV, Kosiuta MA, Fedoniuk LY. Comparative study of oral microbiota in the experimental long-term opioid exposure, after its withdrawal and the use of complex drug correction. POLSKI MERKURIUSZ LEKARSKI : ORGAN POLSKIEGO TOWARZYSTWA LEKARSKIEGO 2024; 52:216-225. [PMID: 38642358 DOI: 10.36740/merkur202402111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/22/2024]
Abstract
OBJECTIVE Aim: To study changes of dental biofilm microbiota composition during experimental opioid exposure, after its withdrawal and when using of complex drug correction.. PATIENTS AND METHODS Materials and Methods: Microbiological studies (48 rats) included microscopic and bacteriological methods, as well as determination of antibiotic susceptibility of microbial isolates. Ceftriaxone and pentoxifylline were used to correction the changes. RESULTS Results: The action of opioid for 10 weeks caused considerable changes in the microbiocenosis, which was illustrated by a significant increasing of the opportunistic pathogens quantitative indicators and the emergence of pathogenic microbiota. Changes in the microbiocenosis at 6 weeks of opioid exposure and after its withdrawal for 4 weeks were expressed in the appearance of pathogenic microbiota and the absence of significant differences in quantitative indicators of saprophytic and opportunistic microflora compared to similar indicators in animals with 10 weeks opioid exposure. This indicated a slow progression of dysbiotic changes and the inflammatory process in the oral cavity of rats. CONCLUSION Conclusions: After 10 weeks of experiment with opioid administration for 6 weeks and the use of ceftriaxone and pentoxifylline on the background of 4-week opioid withdrawal, a significant reduction of quantitative indicators of opportunistic bacteria and elimination of pathogenic species of microorganisms was determined. The use of complex drug correction on the background of 10 weeks of opioid exposure led to a significant reduction in the quantitative indicators of opportunistic pathogens and contributed to the elimination of most pathogenic species of microbiota under the action of ceftriaxone.
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Affiliation(s)
- Volodymyr B Fik
- DANYLO HALYTSKY LVIV NATIONAL MEDICAL UNIVERSITY, LVIV, UKRAINE
| | | | - Olha V Dudok
- DANYLO HALYTSKY LVIV NATIONAL MEDICAL UNIVERSITY, LVIV, UKRAINE
| | | | - Myroslava A Kosiuta
- PRIVATE HIGHER EDUCATION INSTITUTION "LVIV MEDICAL UNIVERSITY", LVIV, UKRAINE
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Gualtero DF, Lafaurie GI, Buitrago DM, Castillo Y, Vargas-Sanchez PK, Castillo DM. Oral microbiome mediated inflammation, a potential inductor of vascular diseases: a comprehensive review. Front Cardiovasc Med 2023; 10:1250263. [PMID: 37711554 PMCID: PMC10498784 DOI: 10.3389/fcvm.2023.1250263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/10/2023] [Indexed: 09/16/2023] Open
Abstract
The dysbiosis of the oral microbiome and vascular translocation of the periodontopathic microorganism to peripheral blood can cause local and systemic extra-oral inflammation. Microorganisms associated with the subgingival biofilm are readily translocated to the peripheral circulation, generating bacteremia and endotoxemia, increasing the inflammation in the vascular endothelium and resulting in endothelial dysfunction. This review aimed to demonstrate how the dysbiosis of the oral microbiome and the translocation of oral pathogen-induced inflammation to peripheral blood may be linked to cardiovascular diseases (CVDs). The dysbiosis of the oral microbiome can regulate blood pressure and activate endothelial dysfunction. Similarly, the passage of periodontal microorganisms into the peripheral circulation and their virulence factors have been associated with a vascular compartment with a great capacity to activate endothelial cells, monocytes, macrophages, and plaquettes and increase interleukin and chemokine secretion, as well as oxidative stress. This inflammatory process is related to atherosclerosis, hypertension, thrombosis, and stroke. Therefore, oral diseases could be involved in CVDs via inflammation. The preclinic and clinical evidence suggests that periodontal disease increases the proinflammatory markers associated with endothelial dysfunction. Likewise, the evidence from clinical studies of periodontal treatment in the long term evidenced the reduction of these markers and improved overall health in patients with CVDs.
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Keklikkiran C, Stepanova M, Younossi Z, Yilmaz Y. Can Frequent Toothbrushing Reduce the Risk of Cirrhosis among Patients with Nonalcoholic Fatty Liver Disease? Hints from a Registry-Based Study. Dig Dis 2023; 41:932-937. [PMID: 37494892 DOI: 10.1159/000531981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/04/2023] [Indexed: 07/28/2023]
Abstract
INTRODUCTION While poor oral hygiene has been previously associated with an increased risk of nonalcoholic fatty liver disease (NAFLD), its association with hepatic fibrosis remains unclear. Here, we sought to analyze if toothbrushing frequency, an easy-to-assess indicator of oral health habits, would be associated with liver stiffness measurement (LSM) by transient elastography (TE) in patients with an established diagnosis of NAFLD. METHODS In this registry-based study, LSM was measured in 1,156 patients with NAFLD and analyzed in relation to the self-reported daily frequency of toothbrushing. LSM values ≥12 kPa were considered indicative of cirrhosis. RESULTS A trend toward a stepwise decrease (cross-sectional p = 0.13) in LSM was found in patients who reported having their teeth brushed more frequently: less than once a day (10.6 ± 8.6 kPa; 13% of the study sample), once a day (9.95 ± 8.40 kPa; 40%), twice a day (9.21 ± 7.63 kPa; 43%), and after every meal (8.91 ± 5.30 kPa; 4%). Patients who brushed their teeth less than once a day had a significantly higher prevalence of LSM values ≥12 kPa (p < 0.05). In multivariable logistic regression analysis, the association of LSM values ≥12 kPa with toothbrushing habits remained statistically significant for less than once a day (odds ratio = 1.69, 95% confidence interval = 1.07-2.66, p = 0.02) with reference to twice a day or after every meal. CONCLUSION Among patients with NAFLD, there is an independent association between brushing teeth less than once a day and TE-established cirrhosis.
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Affiliation(s)
- Caglayan Keklikkiran
- Department of Gastroenterology, Recep Tayyip Erdoğan University Training and Research Hospital, Rize, Turkey
| | - Maria Stepanova
- Beatty Liver and Obesity Research Program, Inova Health System, Falls Church, Virginia, USA
- Center for Liver Disease, Department of Medicine, Inova Fairfax Medical Campus, Falls Church, Virginia, USA
- Inova Medicine Service Line, Inova Health System, Falls Church, Virginia, USA
- The Global NASH Council, Center for Outcomes Research in Liver Diseases, Washington DC, District of Columbia, USA
| | - Zobair Younossi
- Beatty Liver and Obesity Research Program, Inova Health System, Falls Church, Virginia, USA
- Center for Liver Disease, Department of Medicine, Inova Fairfax Medical Campus, Falls Church, Virginia, USA
- Inova Medicine Service Line, Inova Health System, Falls Church, Virginia, USA
- The Global NASH Council, Center for Outcomes Research in Liver Diseases, Washington DC, District of Columbia, USA
| | - Yusuf Yilmaz
- The Global NASH Council, Center for Outcomes Research in Liver Diseases, Washington DC, District of Columbia, USA
- Institute of Gastroenterology, Marmara University, İstanbul, Turkey
- Department of Gastroenterology, School of Medicine, Recep Tayyip Erdoğan University, Rize, Turkey
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Khomich M, Lin H, Malinovschi A, Brix S, Cestelli L, Peddada S, Johannessen A, Eriksen C, Real FG, Svanes C, Bertelsen RJ. Association between lipid-A-producing oral bacteria of different potency and fractional exhaled nitric oxide in a Norwegian population-based adult cohort. J Transl Med 2023; 21:354. [PMID: 37246224 DOI: 10.1186/s12967-023-04199-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 05/14/2023] [Indexed: 05/30/2023] Open
Abstract
BACKGROUND Lipid A is the primary immunostimulatory part of the lipopolysaccharide (LPS) molecule. The inflammatory response of LPS varies and depends upon the number of acyl chains and phosphate groups in lipid A which is specific for a bacterial species or strain. Traditional LPS quantification assays cannot distinguish between the acylation degree of lipid A molecules, and therefore little is known about how bacteria with different inflammation-inducing potencies affect fractional exhaled nitric oxide (FeNO). We aimed to explore the association between pro-inflammatory hexa- and less inflammatory penta-acylated LPS-producing oral bacteria and FeNO as a marker of airway inflammation. METHODS We used data from a population-based adult cohort from Norway (n = 477), a study center of the RHINESSA multi-center generation study. We applied statistical methods on the bacterial community- (prediction with MiRKAT) and genus-level (differential abundance analysis with ANCOM-BC) to investigate the association between the oral microbiota composition and FeNO. RESULTS We found the overall composition to be significantly associated with increasing FeNO levels independent of covariate adjustment, and abundances of 27 bacterial genera to differ in individuals with high FeNO vs. low FeNO levels. Hexa- and penta-acylated LPS producers made up 2.4% and 40.8% of the oral bacterial genera, respectively. The Bray-Curtis dissimilarity within hexa- and penta-acylated LPS-producing oral bacteria was associated with increasing FeNO levels independent of covariate adjustment. A few single penta-acylated LPS producers were more abundant in individuals with low FeNO vs. high FeNO, while hexa-acylated LPS producers were found not to be enriched. CONCLUSIONS In a population-based adult cohort, FeNO was observed to be associated with the overall oral bacterial community composition. The effect of hexa- and penta-acylated LPS-producing oral bacteria was overall significant when focusing on Bray-Curtis dissimilarity within each of the two communities and FeNO levels, but only penta-acylated LPS producers appeared to be reduced or absent in individuals with high FeNO. It is likely that the pro-inflammatory effect of hexa-acylated LPS producers is counteracted by the dominance of the more abundant penta-acylated LPS producers in this population-based adult cohort involving mainly healthy individuals.
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Affiliation(s)
- Maryia Khomich
- Department of Clinical Science, University of Bergen, Bergen, Norway.
| | - Huang Lin
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences (NIEHS), NIH, Research Triangle Park, Durham, NC, USA
| | - Andrei Malinovschi
- Department of Medical Sciences, Clinical Physiology, Uppsala University, Uppsala, Sweden
| | - Susanne Brix
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Lucia Cestelli
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Shyamal Peddada
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences (NIEHS), NIH, Research Triangle Park, Durham, NC, USA
| | - Ane Johannessen
- Department of Global Public Health and Primary Care, Center for International Health, University of Bergen, Bergen, Norway
| | - Carsten Eriksen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
- Center for Molecular Prediction of Inflammatory Bowel Disease (PREDICT), Department of Clinical Medicine, Aalborg University, Copenhagen, Denmark
| | - Francisco Gomez Real
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway
| | - Cecilie Svanes
- Department of Global Public Health and Primary Care, Center for International Health, University of Bergen, Bergen, Norway
- Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
| | - Randi Jacobsen Bertelsen
- Department of Clinical Science, University of Bergen, Bergen, Norway.
- Oral Health Center of Expertise in Western Norway, Bergen, Norway.
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Yamamoto K, Yamashita M, Oda M, Tjendana Tjhin V, Inagawa H, Soma GI. Oral Administration of Lipopolysaccharide Enhances Insulin Signaling-Related Factors in the KK/Ay Mouse Model of Type 2 Diabetes Mellitus. Int J Mol Sci 2023; 24:ijms24054619. [PMID: 36902049 PMCID: PMC10003108 DOI: 10.3390/ijms24054619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/16/2023] [Accepted: 02/21/2023] [Indexed: 03/04/2023] Open
Abstract
Lipopolysaccharide (LPS), an endotoxin, induces systemic inflammation by injection and is thought to be a causative agent of chronic inflammatory diseases, including type 2 diabetes mellitus (T2DM). However, our previous studies found that oral LPS administration does not exacerbate T2DM conditions in KK/Ay mice, which is the opposite of the response from LPS injection. Therefore, this study aims to confirm that oral LPS administration does not aggravate T2DM and to investigate the possible mechanisms. In this study, KK/Ay mice with T2DM were orally administered LPS (1 mg/kg BW/day) for 8 weeks, and blood glucose parameters before and after oral administration were compared. Abnormal glucose tolerance, insulin resistance progression, and progression of T2DM symptoms were suppressed by oral LPS administration. Furthermore, the expressions of factors involved in insulin signaling, such as insulin receptor, insulin receptor substrate 1, thymoma viral proto-oncogene, and glucose transporter type 4, were upregulated in the adipose tissues of KK/Ay mice, where this effect was observed. For the first time, oral LPS administration induces the expression of adiponectin in adipose tissues, which is involved in the increased expression of these molecules. Briefly, oral LPS administration may prevent T2DM by inducing an increase in the expressions of insulin signaling-related factors based on adiponectin production in adipose tissues.
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Affiliation(s)
- Kazushi Yamamoto
- Control of Innate Immunity, Technology Research Association, Takamatsu 761-0301, Japan
| | - Masashi Yamashita
- Control of Innate Immunity, Technology Research Association, Takamatsu 761-0301, Japan
| | - Masataka Oda
- Control of Innate Immunity, Technology Research Association, Takamatsu 761-0301, Japan
| | - Vindy Tjendana Tjhin
- Control of Innate Immunity, Technology Research Association, Takamatsu 761-0301, Japan
| | - Hiroyuki Inagawa
- Control of Innate Immunity, Technology Research Association, Takamatsu 761-0301, Japan
- Research Institute for Healthy Living, Niigata University of Pharmacy and Applied Life Sciences, Niigata 956-0841, Japan
| | - Gen-Ichiro Soma
- Control of Innate Immunity, Technology Research Association, Takamatsu 761-0301, Japan
- Research Institute for Healthy Living, Niigata University of Pharmacy and Applied Life Sciences, Niigata 956-0841, Japan
- Correspondence: ; Tel.: +81-87-813-9201
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Heng BC, Bai Y, Li X, Lim LW, Li W, Ge Z, Zhang X, Deng X. Electroactive Biomaterials for Facilitating Bone Defect Repair under Pathological Conditions. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204502. [PMID: 36453574 PMCID: PMC9839869 DOI: 10.1002/advs.202204502] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 10/24/2022] [Indexed: 06/02/2023]
Abstract
Bone degeneration associated with various diseases is increasing due to rapid aging, sedentary lifestyles, and unhealthy diets. Living bone tissue has bioelectric properties critical to bone remodeling, and bone degeneration under various pathological conditions results in significant changes to these bioelectric properties. There is growing interest in utilizing biomimetic electroactive biomaterials that recapitulate the natural electrophysiological microenvironment of healthy bone tissue to promote bone repair. This review first summarizes the etiology of degenerative bone conditions associated with various diseases such as type II diabetes, osteoporosis, periodontitis, osteoarthritis, rheumatoid arthritis, osteomyelitis, and metastatic osteolysis. Next, the diverse array of natural and synthetic electroactive biomaterials with therapeutic potential are discussed. Putative mechanistic pathways by which electroactive biomaterials can mitigate bone degeneration are critically examined, including the enhancement of osteogenesis and angiogenesis, suppression of inflammation and osteoclastogenesis, as well as their anti-bacterial effects. Finally, the limited research on utilization of electroactive biomaterials in the treatment of bone degeneration associated with the aforementioned diseases are examined. Previous studies have mostly focused on using electroactive biomaterials to treat bone traumatic injuries. It is hoped that this review will encourage more research efforts on the use of electroactive biomaterials for treating degenerative bone conditions.
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Affiliation(s)
- Boon Chin Heng
- Central LaboratoryPeking University School and Hospital of StomatologyBeijing100081P. R. China
- School of Medical and Life SciencesSunway UniversityDarul EhsanSelangor47500Malaysia
| | - Yunyang Bai
- Department of Geriatric DentistryPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Xiaochan Li
- Department of Geriatric DentistryPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Lee Wei Lim
- Neuromodulation LaboratorySchool of Biomedical SciencesLi Ka Shing Faculty of MedicineThe University of Hong KongPokfulamHong KongP. R. China
| | - Wang Li
- Department of Biomedical EngineeringPeking UniversityBeijing100871P. R. China
| | - Zigang Ge
- Department of Biomedical EngineeringPeking UniversityBeijing100871P. R. China
| | - Xuehui Zhang
- Department of Dental Materials & Dental Medical Devices Testing CenterPeking University School and Hospital of StomatologyBeijing100081P. R. China
- National Engineering Research Center of Oral Biomaterials and Digital Medical DevicesNMPA Key Laboratory for Dental MaterialsBeijing Laboratory of Biomedical Materials & Beijing Key Laboratory of Digital StomatologyPeking University School and Hospital of StomatologyBeijing100081P. R. China
| | - Xuliang Deng
- Department of Geriatric DentistryPeking University School and Hospital of StomatologyBeijing100081P. R. China
- Department of Dental Materials & Dental Medical Devices Testing CenterPeking University School and Hospital of StomatologyBeijing100081P. R. China
- National Engineering Research Center of Oral Biomaterials and Digital Medical DevicesNMPA Key Laboratory for Dental MaterialsBeijing Laboratory of Biomedical Materials & Beijing Key Laboratory of Digital StomatologyPeking University School and Hospital of StomatologyBeijing100081P. R. China
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12
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Wang T, Ishikawa T, Sasaki M, Chiba T. Oral and Gut Microbial Dysbiosis and Non-alcoholic Fatty Liver Disease: The Central Role of Porphyromonas gingivalis. Front Med (Lausanne) 2022; 9:822190. [PMID: 35308549 PMCID: PMC8924514 DOI: 10.3389/fmed.2022.822190] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/19/2022] [Indexed: 02/05/2023] Open
Abstract
Gut microbiota play many important roles, such as the regulation of immunity and barrier function in the intestine, and are crucial for maintaining homeostasis in living organisms. The disruption in microbiota is called dysbiosis, which has been associated with various chronic inflammatory conditions, food allergies, colorectal cancer, etc. The gut microbiota is also affected by several other factors such as diet, antibiotics and other medications, or bacterial and viral infections. Moreover, there are some reports on the oral-gut-liver axis indicating that the disruption of oral microbiota affects the intestinal biota. Non-alcoholic fatty liver disease (NAFLD) is one of the systemic diseases caused due to the dysregulation of the oral-gut-liver axis. NAFLD is the most common liver disease reported in the developed countries. It includes liver damage ranging from simple steatosis to nonalcoholic steatohepatitis (NASH), cirrhosis, and cancer. Recently, accumulating evidence supports an association between NAFLD and dysbiosis of oral and gut microbiota. Periodontopathic bacteria, especially Porphyromonas gingivalis, have been correlated with the pathogenesis and development of NAFLD based on the clinical and basic research, and immunology. P. gingivalis was detected in the liver, and lipopolysaccharide from this bacteria has been shown to be involved in the progression of NAFLD, thereby indicating a direct role of P. gingivalis in NAFLD. Moreover, P. gingivalis induces dysbiosis of gut microbiota, which promotes the progression of NAFLD, through disrupting both metabolic and immunologic pathways. Here, we review the roles of microbial dysbiosis in NAFLD. Focusing on P. gingivalis, we evaluate and summarize the most recent advances in our understanding of the relationship between oral-gut microbiome symbiosis and the pathogenesis and progression of non-alcoholic fatty liver disease, as well as discuss novel strategies targeting both P. gingivalis and microbial dysbiosis.
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Affiliation(s)
- Ting Wang
- Division of Internal Medicine, Department of Oral Medicine, Iwate Medical University, Morioka, Japan
- Ting Wang
| | - Taichi Ishikawa
- Division of Molecular Microbiology, Department of Microbiology, Iwate Medical University, Morioka, Japan
| | - Minoru Sasaki
- Division of Molecular Microbiology, Department of Microbiology, Iwate Medical University, Morioka, Japan
| | - Toshimi Chiba
- Division of Internal Medicine, Department of Oral Medicine, Iwate Medical University, Morioka, Japan
- *Correspondence: Toshimi Chiba
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Fik VB, Mykhalevych МM, Podolіyk МV, Tsytovskiy MN, Fedechko YM, Fedoniuk LY. DYNAMICS OF CHANGES IN THE MICROBIAL PICTURE OF THE ORAL CAVITY ON THE BACKGROUND OF CHRONIC OPIOID EXPOSURE IN THE EXPERIMENT. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2022; 75:1991-1997. [PMID: 36129084 DOI: 10.36740/wlek202208209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE The aim is to investigate changes in the microbiota of dental biofilm at the end of the eighth, tenth and twelfth weeks of experimental opioid exposure. PATIENTS AND METHODS Materials and methods: The study was performed on 36 white outbred adult male rats, which were injected with the opioid analgesic nalbuphine in increasing doses (0,212 - 0,3 mg / kg) during 8, 10 and 12 weeks. Qualitative and quantitative composition of microbiota of dental biofilm was studied using statistical analysis. RESULTS Results: After eight weeks of opioid exposure, changes in microbiocenosis of dental biofilm of rats were caused by a significant increase in saprophytic and opportunistic microbiota and an appearance of pathogenic species of indicator microbiota with potential periodontopathogenic action. At the end of the tenth week, a significant increase in the quantitative indicators of certain species of opportunistic microbiota and increase in the quantitative composition of pathogenic bacteria were determined. After twelve week of opioid exposure, a significant increase in the quantitative indicators of pathogenic microbiota of dental biofilm was detected. CONCLUSION Conclusions: Changes in the qualitative and quantitative composition of the microbiocenosis of the dental biofilm at the end of 8, 10 and 12 weeks of opioid exposure were established, they were manifested by a significant increase in the quantitative indicators of certain species of opportunistic microorganisms and a significant increase in pathogenic microbiota in the dynamics, which led to the progression of dysbiotic changes and purulent-inflammatory process in the oral cavity of rats.
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Affiliation(s)
- Volodymyr B Fik
- DANYLO HALYTSKY LVIV NATIONAL MEDICAL UNIVERSITY, LVIV, UKRAINE
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