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Md Lasim A, Mohd Ngesom AM, Nathan S, Abdul Razak F, Abdul Halim M, Mohd-Saleh W, Zainul Abidin K, Mohd-Taib FS. Bacterial community profiles within the water samples of leptospirosis outbreak areas. PeerJ 2024; 12:e17096. [PMID: 38699181 PMCID: PMC11064854 DOI: 10.7717/peerj.17096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 02/21/2024] [Indexed: 05/05/2024] Open
Abstract
Background Leptospirosis is a water-related zoonotic disease. The disease is primarily transmitted from animals to humans through pathogenic Leptospira bacteria in contaminated water and soil. Rivers have a critical role in Leptospira transmissions, while co-infection potentials with other waterborne bacteria might increase the severity and death risk of the disease. Methods The water samples evaluated in this study were collected from four recreational forest rivers, Sungai Congkak, Sungai Lopo, Hulu Perdik, and Gunung Nuang. The samples were subjected to next-generation sequencing (NGS) for the 16S rRNA and in-depth metagenomic analysis of the bacterial communities. Results The water samples recorded various bacterial diversity. The samples from the Hulu Perdik and Sungai Lopo downstream sampling sites had a more significant diversity, followed by Sungai Congkak. Conversely, the upstream samples from Gunung Nuang exhibited the lowest bacterial diversity. Proteobacteria, Firmicutes, and Acidobacteria were the dominant phyla detected in downstream areas. Potential pathogenic bacteria belonging to the genera Burkholderiales and Serratia were also identified, raising concerns about co-infection possibilities. Nevertheless, Leptospira pathogenic bacteria were absent from all sites, which is attributable to its limited persistence. The bacteria might also be washed to other locations, contributing to the reduced environmental bacterial load. Conclusion The present study established the presence of pathogenic bacteria in the river ecosystems assessed. The findings offer valuable insights for designing strategies for preventing pathogenic bacteria environmental contamination and managing leptospirosis co-infections with other human diseases. Furthermore, closely monitoring water sample compositions with diverse approaches, including sentinel programs, wastewater-based epidemiology, and clinical surveillance, enables disease transmission and outbreak early detections. The data also provides valuable information for suitable treatments and long-term strategies for combating infectious diseases.
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Affiliation(s)
- Asmalia Md Lasim
- Department of Herbal Medicine Research Centre, Insitute for Medical Research, Setia Alam, Malaysia
- Department of Biological Science and Biotechnology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | | | - Sheila Nathan
- Department of Biological Science and Biotechnology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | - Fatimah Abdul Razak
- Department of Biological Science and Biotechnology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | - Mardani Abdul Halim
- Biotechnology Research Institute, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
| | - Wardah Mohd-Saleh
- Department of Herbal Medicine Research Centre, Insitute for Medical Research, Setia Alam, Malaysia
| | - Kamaruddin Zainul Abidin
- Faculty of Applied Science, Universiti Teknologi MARA (UiTM) Cawangan Pahang, Bandar Tun Razak, Pahang, Malaysia
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2
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Zhang Z, Wen S, Liu J, Ouyang Y, Su Z, Chen D, Liang Z, Wang Y, Luo T, Jiang Q, Guo L. Advances in the relationship between periodontopathogens and respiratory diseases (Review). Mol Med Rep 2024; 29:42. [PMID: 38240101 PMCID: PMC10828996 DOI: 10.3892/mmr.2024.13166] [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: 07/04/2023] [Accepted: 01/04/2023] [Indexed: 01/23/2024] Open
Abstract
Periodontitis is a common chronic inflammatory and destructive disease in the mouth and is considered to be associated with systemic diseases. Accumulating evidence has suggested that periodontitis is a risk factor for pulmonary diseases such as pneumonia, chronic obstructive pulmonary disease (COPD), asthma, coronavirus disease 2019 (COVID‑19) and lung cancer. The presence of common periodontal pathogens has been detected in samples from a variety of pulmonary diseases. Periodontal pathogens can be involved in lung diseases by promoting the adhesion and invasion of respiratory pathogens, regulating the apoptosis of respiratory epithelium and inducing overexpression of mucin and disrupting the balance of immune systemin respiratory epithelium cells. Additionally, measures to control plaque and maintain the health of periodontal tissue can decrease the incidence of respiratory adverse events. This evidence suggests a close association between periodontitis and pulmonary diseases. The present study aimed to review the clinical association between periodontitis and pneumonia, COPD, asthma, COVID‑19 and lung cancer, and propose a possible mechanism and potential role of periodontal pathogens in linking periodontal disease and lung disease. This could provide a direction for further research on the association between periodontitis and lung disease and provide novel ideas for the clinical diagnosis and treatment management of these two diseases.
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Affiliation(s)
- Zhiyi Zhang
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, P.R. China
| | - Siyi Wen
- Department of Endodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, P.R. China
| | - Jiaohong Liu
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, P.R. China
| | - Yuanting Ouyang
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, P.R. China
| | - Zhikang Su
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, P.R. China
| | - Ding Chen
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, P.R. China
| | - Zitian Liang
- Department of Endodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, P.R. China
| | - Yan Wang
- Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, State Key Laboratory of Respiratory Diseases, Guangzhou, Guangdong 510182, P.R. China
| | - Tao Luo
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, P.R. China
| | - Qianzhou Jiang
- Department of Endodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, P.R. China
| | - Lvhua Guo
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, P.R. China
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3
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Shunsheng Han C. Prebiotic supplements correct oral probiotic deficiency for lasting allergy relief. Am J Transl Res 2024; 16:136-146. [PMID: 38322553 PMCID: PMC10839399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 12/27/2023] [Indexed: 02/08/2024]
Abstract
The prevalence of allergic rhinitis (common allergies) has increased in the last fifty years, from less than one percent to more than twenty-six percent of the population. Today, more than one hundred million people in the US suffer seasonal or yearlong allergies. The hygiene hypothesis was proposed 30 years ago as a potential explanation for this phenomenon, and we built on it with the specific oral hygiene hypothesis. Our longitudinal pilot study suggested that oral probiotic deficiency is the cause of allergic rhinitis. This clinical trial served to verify our theory and evaluate the effectiveness of AllerPops for allergy relief. We carried out a phase II, randomized, double-blind, controlled, single-center 21-day study to investigate the efficacy of AllerPops to reduce nasal symptoms in 72 adult volunteers with seasonal/year-long nasal allergies and its impact on oral microbiome using amplicon sequencing of 16S ribosome RNA genes. The volunteers were randomly separated into two equally sized groups: a control group and an investigational group. Both groups were given at least three doses of AllerPops, taken every other day, and asked to answer questions about observed allergy symptoms. Volunteers in the investigational group cleaned their mouths before taking a dose and slowly dissolve the lozenge, while those in the control did not. Through this trial, we show that AllerPops prebiotic supplements are effective in providing sustained allergy relief (P = 0.002) and can modulate oral beneficial bacteria that produce short-chain fatty acids (SCFA), such as Fusobacteria, Butyrivibrio, and Peptostreptococcus. The clinical improvements correlated with changes in the relative abundance of probiotics significantly: Fusobacteria (R = 0.32, P = 0.009), Butyrivibrio (R = 0.25, P = 0.044), and Peptostreptococcus (R = 0.34, P = 0.005). These results point to the root cause of allergic rhinitis: the lack of oral probiotics that produce SCFA to pacify the immune systems. Future study of AllerPops' theory will help society redefine the best oral hygiene practice to protect oral probiotics so that we may prevent allergic and autoimmune diseases and dental/gum infections. The trial was retrospectively registered at clinicaltrials.com, with registration number NCT05956691, on 21/07/2023.
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4
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Tamiya H, Abe M, Nagase T, Mitani A. The Link between Periodontal Disease and Asthma: How Do These Two Diseases Affect Each Other? J Clin Med 2023; 12:6747. [PMID: 37959214 PMCID: PMC10650117 DOI: 10.3390/jcm12216747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/03/2023] [Accepted: 10/22/2023] [Indexed: 11/15/2023] Open
Abstract
A growing body of evidence suggests that the effects of poor oral hygiene extend beyond the oral cavity and are associated with a variety of systemic diseases, including asthma. Asthma, which results in symptoms of cough, wheezing, and dyspnoea, and is characterized by airflow limitation with variability and (partial or complete) reversibility, is amongst the most prevalent respiratory diseases with approximately 262 million patients worldwide, and its prevalence and disease burden is on the increase. While asthma can occur at a young age, it can also develop later in life and affects a variety of age groups. Both of these diseases have a chronic course, and various researchers have suggested a link between the two. In this article, we aim to provide a literature review focusing on the association between the two diseases. The results demonstrate that medications (primarily, inhaler medicine), hypoxia induced by asthma, and the breathing behaviour of patients potentially trigger periodontal disease. In contrast, oral periodontopathogenic microorganisms and the inflammatory mediators produced by them may be involved in the onset and/or exacerbation of asthma. Common contributing factors, such as smoking, gastro-oesophageal reflux, and type-2 inflammation, should also be considered when evaluating the relationship between the two diseases.
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Affiliation(s)
- Hiroyuki Tamiya
- Division for Health Service Promotion, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- The Department of Respiratory Medicine, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Masanobu Abe
- Department of Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Takahide Nagase
- The Department of Respiratory Medicine, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Akihisa Mitani
- The Department of Respiratory Medicine, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
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5
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Shi T, Wang J, Dong J, Hu P, Guo Q. Periodontopathogens Porphyromonas gingivalis and Fusobacterium nucleatum and Their Roles in the Progression of Respiratory Diseases. Pathogens 2023; 12:1110. [PMID: 37764918 PMCID: PMC10535846 DOI: 10.3390/pathogens12091110] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/18/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023] Open
Abstract
The intricate interplay between oral microbiota and the human host extends beyond the confines of the oral cavity, profoundly impacting the general health status. Both periodontal diseases and respiratory diseases show high prevalence worldwide and have a marked influence on the quality of life for the patients. Accumulating studies are establishing a compelling association between periodontal diseases and respiratory diseases. Here, in this review, we specifically focus on the key periodontal pathogenic bacteria Porphyromonas gingivalis and Fusobacterium nucleatum and dissect their roles in the onset and course of respiratory diseases, mainly pneumonia, chronic obstructive pulmonary disease, lung cancer, and asthma. The mechanistic underpinnings and molecular processes on how P. gingivalis and F. nucleatum contribute to the progression of related respiratory diseases are further summarized and analyzed, including: induction of mucus hypersecretion and chronic airway inflammation; cytotoxic effects to disrupt the morphology and function of respiratory epithelial cells; synergistic pathogenic effects with respiratory pathogens like Streptococcus pneumoniae and Pseudomonas aeruginosa. By delving into the complex relationship to periodontal diseases and periodontopathogens, this review helps unearth novel insights into the etiopathogenesis of respiratory diseases and inspires the development of potential therapeutic avenues and preventive strategies.
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Affiliation(s)
- Tao Shi
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jiale Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jiajia Dong
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
- State Key Laboratory of Respiratory Health and Multimorbidity, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Pingyue Hu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Qiang Guo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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6
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Du M, Xu S, Qiu B, Hu S, Tjakkes GHE, Li A, Ge S. Serum antibodies to periodontal pathogens are related to allergic symptoms. J Periodontol 2023; 94:204-216. [PMID: 35960608 DOI: 10.1002/jper.22-0346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/02/2022] [Accepted: 08/02/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND The association between periodontitis and allergic symptoms has been investigated. However, the difference in immune signatures between them remains poorly understood. This cross-sectional study assessed the relationship between serum immunoglobulin G (IgG) antibodies to periodontal pathogens and allergic symptoms in a nationwide population cohort. METHODS Two phases of the Third National Health and Nutrition Examination Survey (NHANES III) were used as discovery dataset (n = 3700) and validation dataset (n = 4453), respectively. Based on the antibodies against 19 periodontal pathogens, we performed an unsupervised hierarchical clustering to categorize the population into three clusters. In the discovery dataset, cluster 1 (n = 2847) had the highest level of IgG antibodies, followed by clusters 2 (n = 588) and 3 (n = 265). Data on allergic symptoms (asthma, hay fever, and wheezing) were obtained using a self-reported questionnaire. Survey-weighted multivariable logistic regression evaluated the association between these clusters and allergic symptoms. RESULTS In the discovery dataset, the participants with lower levels of antibodies to periodontal pathogens exhibited a higher risk of asthma (odds ratio [OR]cluster 3 vs. cluster 1 = 1.820, 95% confidence interval [CI]: 1.153-2.873) and wheezing (ORcluster 3 vs. cluster 1 = 1.550, 95% CI: 1.095-2.194) compared to those with higher periodontal antibodies, but the non-significant association with hay fever. Consistent results were found in the validation dataset. CONCLUSIONS Serum IgG titers to periodontal pathogens were inversely associated with the risk of asthma and wheezing, suggesting the potentially protective role against allergic conditions.
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Affiliation(s)
- Mi Du
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Shulan Xu
- Center of Oral Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Bingjiang Qiu
- Department of Radiology & Guangdong Cardiovascular Institute & Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Data Science Center in Health (DASH) & 3D Lab, University Medical Center Groningen (UMCG), University of Groningen, Groningen, The Netherlands
| | - Shixian Hu
- Institute of Precision Medicine, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.,Department of Gastroenterology and Hepatology, UMCG, University of Groningen, Groningen, The Netherlands
| | - Geerten-Has E Tjakkes
- Department of Periodontology, Center for Dentistry and Oral Hygiene, UMCG, University of Groningen, Groningen, The Netherlands
| | - An Li
- Center of Oral Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China.,Department of Periodontology, Center for Dentistry and Oral Hygiene, UMCG, University of Groningen, Groningen, The Netherlands
| | - Shaohua Ge
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
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7
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Dong J, Li W, Wang Q, Chen J, Zu Y, Zhou X, Guo Q. Relationships Between Oral Microecosystem and Respiratory Diseases. Front Mol Biosci 2022; 8:718222. [PMID: 35071321 PMCID: PMC8767498 DOI: 10.3389/fmolb.2021.718222] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 12/09/2021] [Indexed: 02/05/2023] Open
Abstract
Oral microecosystem is a very complicated ecosystem that is located in the mouth and comprises oral microbiome, diverse anatomic structures of oral cavity, saliva and interactions between oral microbiota and between oral microbiota and the host. More and more evidence from studies of epidemiology, microbiology and molecular biology is establishing a significant link between oral microecosystem and respiratory diseases. Microbiota settling down in oral microecosystem is known as the main source of lung microbiome and has been associated with the occurrence and development of respiratory diseases like pneumonia, chronic obstructive pulmonary disease, lung cancer, cystic fibrosis lung disease and asthma. In fact, it is not only indigenous oral microbes promote or directly cause respiratory infection and inflammation when inhaled into the lower respiratory tract, but also internal environment of oral microecosystem serves as a reservoir for opportunistic respiratory pathogens. Moreover, poor oral health and oral diseases caused by oral microecological dysbiosis (especially periodontal disease) are related with risk of multiple respiratory diseases. Here, we review the research status on the respiratory diseases related with oral microecosystem. Potential mechanisms on how respiratory pathogens colonize oral microecosystem and the role of indigenous oral microbes in pathogenesis of respiratory diseases are also summarized and analyzed. Given the importance of oral plaque control and oral health interventions in controlling or preventing respiratory infection and diseases, we also summarize the oral health management measures and attentions, not only for populations susceptible to respiratory infection like the elderly and hospitalized patients, but also for dentist or oral hygienists who undertake oral health care. In conclusion, the relationship between respiratory diseases and oral microecosystem has been established and supported by growing body of literature. However, etiological evidence on the role of oral microecosystem in the development of respiratory diseases is still insufficient. Further detailed studies focusing on specific mechanisms on how oral microecosystem participate in the pathogenesis of respiratory diseases could be helpful to prevent and treat respiratory diseases.
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Affiliation(s)
- Jiajia Dong
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qi Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jiahao Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yue Zu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qiang Guo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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8
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Kim YH, Jang H, Kim SY, Jung JH, Kim GE, Park MR, Hong JY, Kim MN, Kim EG, Kim MJ, Kim KW, Sohn MH. Gram-negative microbiota is related to acute exacerbation in children with asthma. Clin Transl Allergy 2021; 11:e12069. [PMID: 34667591 PMCID: PMC8507365 DOI: 10.1002/clt2.12069] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 08/30/2021] [Accepted: 09/09/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The upper-airway microbiota may be associated with the pathogenesis of asthma and useful for predicting acute exacerbation. However, the relationship between the lower-airway microbiota and acute exacerbation in children with asthma is not well understood. We evaluated the characteristics of the airway microbiome using induced sputum from children with asthma exacerbation and compared the microbiota-related differences of inflammatory cytokines with those in children with asthma. METHODS We analysed the microbiome using induced sputum during acute exacerbation of asthma in children. We identified microbial candidates that were prominent in children with asthma exacerbation and compared them with those in children with stable asthma using various analytical methods. The microbial candidates were analysed to determine their association with inflammatory cytokines. We also developed a predictive functional profile using PICRUSt. RESULTS A total of 95 children with allergic sensitisation including 22 with asthma exacerbation, 67 with stable asthma, and 6 controls were evaluated. We selected 26 microbial candidates whose abundances were significantly increased, decreased, or correlated during acute exacerbation in children with asthma. Among the microbial candidates, Campylobacter, Capnocytophaga, Haemophilus, and Porphyromonas were associated with inflammatory cytokines including macrophage inflammatory protein (MIP)-1β, programmed death-ligand 1, and granzyme B. Both Campylobacter and MIP-1β levels were correlated with sputum eosinophils. Increased lipopolysaccharide biosynthesis and decreased glycan degradation were observed in children with asthma exacerbation. CONCLUSION Gram-negative microbes in the lower airway were related to acute exacerbation in children with asthma. These microbes and associated cytokines may play a role in exacerbating asthma in children.
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Affiliation(s)
- Yoon Hee Kim
- Department of PediatricsGangnam Severance HospitalSeoulKorea
- Institute of AllergySeverance Biomedical Science InstituteBrain Korea 21 Project for Medical ScienceYonsei University College of MedicineSeoulKorea
| | - Haerin Jang
- Institute of AllergySeverance Biomedical Science InstituteBrain Korea 21 Project for Medical ScienceYonsei University College of MedicineSeoulKorea
- Department of PediatricsSeverance HospitalSeoulKorea
| | - Soo Yeon Kim
- Institute of AllergySeverance Biomedical Science InstituteBrain Korea 21 Project for Medical ScienceYonsei University College of MedicineSeoulKorea
- Department of PediatricsSeverance HospitalSeoulKorea
| | - Jae Hwa Jung
- Institute of AllergySeverance Biomedical Science InstituteBrain Korea 21 Project for Medical ScienceYonsei University College of MedicineSeoulKorea
- Department of PediatricsSeverance HospitalSeoulKorea
| | - Ga Eun Kim
- Institute of AllergySeverance Biomedical Science InstituteBrain Korea 21 Project for Medical ScienceYonsei University College of MedicineSeoulKorea
- Department of PediatricsSeverance HospitalSeoulKorea
| | - Mi Reu Park
- Institute of AllergySeverance Biomedical Science InstituteBrain Korea 21 Project for Medical ScienceYonsei University College of MedicineSeoulKorea
- Department of PediatricsSeverance HospitalSeoulKorea
| | - Jung Yeon Hong
- Division of Cardiovascular Disease ResearchDepartment for Chronic Disease Convergence ResearchKorea National Institute of HealthCheongjuKorea
| | - Mi Na Kim
- Institute of AllergySeverance Biomedical Science InstituteBrain Korea 21 Project for Medical ScienceYonsei University College of MedicineSeoulKorea
- Department of PediatricsSeverance HospitalSeoulKorea
| | - Eun Gyul Kim
- Institute of AllergySeverance Biomedical Science InstituteBrain Korea 21 Project for Medical ScienceYonsei University College of MedicineSeoulKorea
- Department of PediatricsSeverance HospitalSeoulKorea
| | - Min Jung Kim
- Institute of AllergySeverance Biomedical Science InstituteBrain Korea 21 Project for Medical ScienceYonsei University College of MedicineSeoulKorea
- Department of PediatricsYongin Severance HospitalYonginKorea
| | - Kyung Won Kim
- Institute of AllergySeverance Biomedical Science InstituteBrain Korea 21 Project for Medical ScienceYonsei University College of MedicineSeoulKorea
- Department of PediatricsSeverance HospitalSeoulKorea
| | - Myung Hyun Sohn
- Institute of AllergySeverance Biomedical Science InstituteBrain Korea 21 Project for Medical ScienceYonsei University College of MedicineSeoulKorea
- Department of PediatricsSeverance HospitalSeoulKorea
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9
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Riskumäki M, Tessas I, Ottman N, Suomalainen A, Werner P, Karisola P, Lauerma A, Ruokolainen L, Karkman A, Wisgrill L, Sinkko H, Lehtimäki J, Alenius H, Fyhrquist N. Interplay between skin microbiota and immunity in atopic individuals. Allergy 2021; 76:1280-1284. [PMID: 33480030 DOI: 10.1111/all.14744] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/18/2020] [Accepted: 01/18/2021] [Indexed: 12/21/2022]
Affiliation(s)
- Matilda Riskumäki
- Institute of Environmental Medicine Karolinska Institutet Stockholm Sweden
- Department of Bacteriology and Immunology Medicum University of Helsinki Helsinki Finland
| | - Ioannis Tessas
- Skin and Allergy Hospital Helsinki University Hospital Helsinki Finland
| | - Noora Ottman
- Institute of Environmental Medicine Karolinska Institutet Stockholm Sweden
| | - Alina Suomalainen
- Department of Bacteriology and Immunology Medicum University of Helsinki Helsinki Finland
| | - Paulina Werner
- Institute of Environmental Medicine Karolinska Institutet Stockholm Sweden
| | - Piia Karisola
- Department of Bacteriology and Immunology Medicum University of Helsinki Helsinki Finland
| | - Antti Lauerma
- Skin and Allergy Hospital Helsinki University Hospital Helsinki Finland
| | | | - Antti Karkman
- Department of Microbiology University of Helsinki Helsinki Finland
- Helsinki Institute of Sustainability Science (HELSUS) University of Helsinki Helsinki Finland
| | - Lukas Wisgrill
- Institute of Environmental Medicine Karolinska Institutet Stockholm Sweden
- Division of Neonatology Pediatric Intensive Care and Neuropediatrics Comprehensive Center for Pediatrics Medical University of Vienna Vienna Austria
| | - Hanna Sinkko
- Institute of Environmental Medicine Karolinska Institutet Stockholm Sweden
- Department of Bacteriology and Immunology Medicum University of Helsinki Helsinki Finland
| | | | - Harri Alenius
- Institute of Environmental Medicine Karolinska Institutet Stockholm Sweden
- Department of Bacteriology and Immunology Medicum University of Helsinki Helsinki Finland
| | - Nanna Fyhrquist
- Institute of Environmental Medicine Karolinska Institutet Stockholm Sweden
- Department of Bacteriology and Immunology Medicum University of Helsinki Helsinki Finland
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10
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Rosa EP, Murakami-Malaquias-da-Silva F, Palma-Cruz M, de Carvalho Garcia G, Brito AA, Andreo L, Kamei SK, Negreiros RM, Rodrigues MFDSSD, Mesquita-Ferrari RA, Bussadori SK, Fernandes KPS, Ligeiro-de-Oliveira AP, Lino-Dos-Santos-Franco A, Horliana ACRT. The impact of periodontitis in the course of chronic obstructive pulmonary disease: Pulmonary and systemic effects. Life Sci 2020; 261:118257. [PMID: 32822712 DOI: 10.1016/j.lfs.2020.118257] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 08/01/2020] [Accepted: 08/09/2020] [Indexed: 11/29/2022]
Abstract
AIMS The aim of this study was to verify the impact of periodontitis in the course of chronic obstructive pulmonary disease (COPD) in C57Bl/6J mice. MAIN METHODS The animals were randomly divided into four groups (n = 8): Basal, Periodontitis (P), COPD and COPD+P. COPD was induced by orotracheal instillation of 30 μl of cigarette extract 3 times/week for 7 weeks. Periodontitis was induced by ligation technique for 22 days. Euthanasia was performed on 51st day. The analyzes were total/differential cells and cytokines recovered from bronchoalveolar lavage (BAL), total/differential blood cell count, platelets, total marrow cell count, airway collagen deposition, alveolar enlargement analyzed by mean linear intercept (Lm), mucus and bone crest reabsorption. One-way ANOVA followed by the Student-Newman-Keuls was used. KEY FINDINGS The association COPD+P decreased macrophages (p = 0,0351), TNF-α (p = 0,0071) and INF-γ (p = 0,0004) in BAL, when compared to the COPD group maintaining emphysema levels by alveolar enlargement (p < .05) reorganization of collagen fibers (p = .001) and also mean linear intercept (lm) (p = .001) and mucus (p = .0001). The periodontitis group caused TNF-α increase (p = 0, 0001) in BAL. SIGNIFICANCE Periodontitis, per se, does not alter any of the parameters analyzed, except for increased TNF-α in BAL. However, its association with COPD caused macrophages TNF-α and INF-γ alterations, when compared to the COPD group maintaining emphysema levels by alveolar enlargement and reorganization of collagen fibers. It seems that periodontitis is influencing the course of Th1 profile cell, and cytokines and pulmonary alterations. Further studies are needed to clarify the regulatory process underlying these two diseases.
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Affiliation(s)
- Ellen Perim Rosa
- Postgraduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | | | - Marlon Palma-Cruz
- Postgraduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Geovana de Carvalho Garcia
- Postgraduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Auriléia Aparecida Brito
- Postgraduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Lucas Andreo
- Postgraduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Sergio Koiti Kamei
- Postgraduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Renata Matalon Negreiros
- Postgraduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | | | | | - Sandra Kalil Bussadori
- Postgraduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | | | - Ana Paula Ligeiro-de-Oliveira
- Postgraduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
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11
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Nelwan SC, Nugraha RA, Endaryanto A, Dewi F, Nuraini P, Tedjosasongko U, Utomo DH. Effect of scaling and root planing on level of immunoglobulin E and immunoglobulin G 4 in children with gingivitis and house-dust mite allergy: A pilot randomised controlled trial. ACTA ACUST UNITED AC 2020; 39:21-31. [PMID: 32054426 DOI: 10.1142/s2214607519500020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Background and Objective: There is a pressing need for developing innovative strategies to prevent allergic diseases among children. As house-dust mite (HDM) allergy is often seen in children with gingivitis, strategies should be derived from a conceptual framework of allergen elimination and pathogen eradication; one such strategy is dental scaling and root planing (SRP) to remove dental plaque and periodontal pathogens. The study aimed to evaluate the beneficial effects of comprehensive 6-months dental SRP to reduce the level of immunoglobulin E (IgE) and immunoglobulin G4 (IgG4) in children with gingivitis and HDM allergy. IgE and IgG4, whose production is controlled mainly by Th-2 cells and B cells, are proven biomarkers for atopic inflammatory responses. Methods: The present study conducted a non-blinded randomised controlled trial with superiority design. A total of 10 subjects (age range 6-16 years) with gingivitis and positive skin-prick test to HDM from Pediatric Allergy Outpatient Clinic, Dr. Soetomo General Hospital were enrolled in the present study. Of the 10 subjects, only five received dental SRP. We further evaluated total serum IgE and IgG4 level before and 6 months after treatment. Results and Discussion: Subjects in the standard treatment group showed a slight decrease in the IgE level ([Formula: see text]) but no change in the IgG4 level ([Formula: see text]), while subjects in the intervention group showed a significant decrease in IgE ([Formula: see text]) and IgG4 levels ([Formula: see text]). Conclusion: The study results suggest that 6-month comprehensive dental scaling combined with root planing may help to reduce IgE and IgG4 levels in children with gingivitis and HDM allergy. Furthermore, untreated or undertreated gingivitis is often associated with worsening allergic manifestation and thus should be avoided. Trial Registration: ISRCTN31416107, retrospectively registered on 17 April 2018.
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Affiliation(s)
- Sindy Cornelia Nelwan
- Department of Pediatric Dentistry, Universitas Airlangga, Surabaya, 60135, Indonesia
| | | | - Anang Endaryanto
- Department of Child Health, Universitas Airlangga, Surabaya, 60135, Indonesia
| | - Frisma Dewi
- Department of Pediatric Dentistry, Universitas Airlangga, Surabaya, 60135, Indonesia
| | - Prawati Nuraini
- Department of Pediatric Dentistry, Universitas Airlangga, Surabaya, 60135, Indonesia
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12
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Murakami-Malaquias-da-Silva F, Rosa EP, Oliveira JG, Avelar IS, Palma-Cruz M, Fernandes Silva JG, Rigonato-Oliveira NC, Bussadori SK, Negreiros RM, Ligeiro-de-Oliveira AP, Lino-Dos-Santos-Franco A, Horliana AC. The role of periodontal treatment associated with photodynamic therapy on the modulation of systemic inflammation in the experimental model of asthma and periodontitis. Photodiagnosis Photodyn Ther 2019; 29:101619. [PMID: 31841684 DOI: 10.1016/j.pdpdt.2019.101619] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/03/2019] [Accepted: 12/05/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND The association of Periodontitis (P) with several systemic diseases, among them asthma (A), has been previously studied. As periodontal treatment (TTO) associated with photodynamic therapy (PDT) is able to treat P, the aim of this study is to verify whether periodontitis exerts systemic effects on asthma, and whether TTO, associated or not with PDT, is capable of altering the systemic course of both pathologies. METHODS 64 male Balb/c mice were divided into 8 groups (n = 8): Basal (B), P, P + TTO, P + TTO + PDT, Asthma, A + P, A + P + TTO, A + P + TTO + PDT. After 43 days, all animals were euthanized. The total and differential leukocyte count in serum, platelet count, alveolar bronchial lavage cell count, femoral lavage cell count in addition to the reactivity of the trachea, lung edema and gingiva cytokines were analyzed. The frequency of inflammatory cells was assessed via flow cytometry. One-way ANOVA test was used, followed by the Student-Newman-Keuls post-test. RESULTS There was an increase in the number of blood circulating eosinophils in group A when compared to group B (p < 0.01); this characterized the asthma experimental model. P (p < 0.05) presented a lower amount of cytokine TNF-α in the gingiva when compared to the Asthma group. Apart from that, there was no statistical difference found for the other analyzed parameters. CONCLUSION These data contributed to elucidate that P and A, associated or not with TTO and PDT, are not able to interfere with the systemic parameters of Balb/c mice.
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Affiliation(s)
| | - Ellen Perim Rosa
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil.
| | - Jessica Gonzaga Oliveira
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil.
| | - Isabella Sena Avelar
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil.
| | - Marlon Palma-Cruz
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil.
| | - Joao Gabriel Fernandes Silva
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil.
| | | | - Sandra Kalil Bussadori
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil.
| | - Renata Matalon Negreiros
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil.
| | - Ana Paula Ligeiro-de-Oliveira
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil.
| | - Adriana Lino-Dos-Santos-Franco
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil.
| | - Anna Carolina Horliana
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil.
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13
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Lopes MP, Cruz ÁA, Xavier MT, Stöcker A, Carvalho-Filho P, Miranda PM, Meyer RJ, Soledade KR, Gomes-Filho IS, Trindade SC. Prevotella intermedia and periodontitis are associated with severe asthma. J Periodontol 2019; 91:46-54. [PMID: 31342509 DOI: 10.1002/jper.19-0065] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 05/24/2019] [Accepted: 05/27/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Periodontitis, an inflammatory disease of multibacterial etiology that affects the protective and supporting tissues surrounding teeth, can influence the course of respiratory diseases, such as asthma, due to epithelial alterations arising from inflammatory and immunological processes, bronchial remodeling, or by the aspiration of pathogenic colonizers found in periodontal pockets. This study evaluated the levels of periodontal pathogens Prevotella intermedia, Porphyromonas gingivalis, Treponema denticola, Tannerella forsythia, and Aggregatibacter actinomycetemcomitans in the subgingival biofilm of individuals with and without severe asthma. METHODS A case-control study enrolling 457 individuals (220 with asthma and 237 without asthma) was conducted at the Program for Control of Asthma in Bahia (ProAR) Clinic located in Salvador, Bahia, Brazil. A structured questionnaire was used to obtain data on sociodemographic, health status, and lifestyle habits. A clinical periodontal assessment was performed, including bleeding on probing, probing depth, and clinical attachment level. Subgingival biofilm was collected at the deepest site of each sextant, and bacterial DNA was extracted. Quantitative real-time PCR analysis was performed to detect and relatively quantify periodontopathogens in the biofilm. RESULTS Statistically significant positive associations were found between periodontitis and severe asthma, (odds ratio [OR]adjusted] : 4.00; 95% confidence interval [CI]: 2.26 to 7.10). High levels of P. intermedia were found in association with the presence of severe asthma (ORadjusted : 2.64; 95% CI: 1.62 to 4.39; P < 0.01). CONCLUSIONS The present results suggest that periodontitis and P. intermedia are associated with severe asthma. However, the functional consequences of this dysbiosis upon asthma susceptibility and its phenotypes remain unclear.
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Affiliation(s)
- Mabel P Lopes
- Post-Graduation Program, Federal University of Bahia, Salvador, Brazil
| | - Álvaro A Cruz
- Faculty of Medicine, Federal University of Bahia, Salvador, Brazil
| | - Márcia T Xavier
- Department of Biointeraction, Federal University of Bahia, Salvador, Brazil
| | - Andreas Stöcker
- Universitary Hospital Professor Edgard Santos, Federal University of Bahia, Salvador, Brazil
| | | | | | - Roberto J Meyer
- Department of Biointeraction, Federal University of Bahia, Salvador, Brazil
| | - Kaliane R Soledade
- Department of Biointeraction, Federal University of Bahia, Salvador, Brazil
| | - Isaac S Gomes-Filho
- Department of Health, Feira de Santana State University, Feira de Santana, Brazil
| | - Soraya C Trindade
- Post-Graduation Program, Federal University of Bahia, Salvador, Brazil.,Department of Health, Feira de Santana State University, Feira de Santana, Brazil
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14
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Nelwan SC, Nugraha RA, Endaryanto A, Meizarini A, Tedjosasongko U, Pradopo S, Utomo H. Converging findings from linkage between periodontal pathogen with atopic and allergic immune response. Cytokine 2018; 113:89-98. [PMID: 29937409 DOI: 10.1016/j.cyto.2018.06.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/30/2018] [Accepted: 06/11/2018] [Indexed: 12/13/2022]
Abstract
This study aims to explore a relationship between exposures of whole-cell Porphyromonas gingivalis in various doses with atopic inflammatory responses at experimental mice. A pretest-posttest controlled group design, with 16 Wistar rats (Rattus novergicus) randomized into four groups. Group 1 was the control group. Group 2 was given low-dose (9 × 107 colony-forming unit) of P. gingivalis. Group 3 was given medium-dose (9 × 109 colony-forming unit) of P. gingivalis. Group 4 was given high-dose (9 × 1011 colony-forming unit) of P. gingivalis. Interleukin-4, Interleukin-5, Interleukin-17F, Interleukin-21, Immunoglobulin-E, Immunoglobulin-G4, and γ-Interferon were measured by direct-sandwich ELISA just before the treatments began, day-4, and day-11 after treatments. There is a sudden increase of Interleukin-4 in the group 4 (23.79 ± 0.91 pg/ml to 54.17 ± 0.79 pg/ml; p = 0.01) and slight increase of Interleukin-5 in the group 4 (207.60 ± 11.15 pg/ml to 243.40 ± 9.33 pg/ml; p = 0.03). No change was observed for Interleukin-17F in all groups. Serum concentration of Immunoglobulin-E was decreased in group 2 (-10.44 ± 8.13 pg/ml), but increased in group 4 (+1.03 ± 4.57 pg/ml). Taken together, some cytokines are up-regulated and others are down-regulated after exposure to whole-cell P. gingivalis. Moreover, study of host responses during periodontal infection may offer critical key insight that contribute to the development of atopy. CLINICAL IMPLICATIONS: We introduced and explained the potential role of periodontal pathogen Porphyromonas gingivalis in systemic immune responses, along with its virulence factor inside the oral cavity. Our results consider several changes and differences of cytokines and immunoglobulins following whole-cell Porphyromonas gingivalis exposure. However, results of the study need to be interpreted with caution due to its limitations. CAPSULE SUMMARY: Interleukin (IL)-4 and IL-5 had been found increase after exposure to the periodontal pathogens Porphyromonas gingivalis, whereas no or minimal change had been found in the level of IL-17F, Ig-G4, and IFN-γ. The various cytokines and immunoglobulins shown in this study do not prove a causal relationship, and the precise role of Porphyromonas gingivalis in the regulation of atopic immune response warrants further investigation. Nevertheless, these findings may provide some critical key insight into the host responses following Porphyromonas gingivalis infection.
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Affiliation(s)
- Sindy Cornelia Nelwan
- Department of Pediatric Dentistry, Faculty of Dentistry Universitas Airlangga, Surabaya, Indonesia.
| | | | - Anang Endaryanto
- Department of Child Health, Faculty of Medicine Universitas Airlangga, Surabaya, Indonesia
| | - Asti Meizarini
- Department of Dental Materials Science and Technology, Faculty of Dentistry Universitas Airlangga, Surabaya, Indonesia
| | - Udijanto Tedjosasongko
- Department of Pediatric Dentistry, Faculty of Dentistry Universitas Airlangga, Surabaya, Indonesia
| | - Seno Pradopo
- Department of Pediatric Dentistry, Faculty of Dentistry Universitas Airlangga, Surabaya, Indonesia
| | - Haryono Utomo
- Department of Forensic Dentistry, Faculty of Dentistry Universitas Airlangga, Surabaya, Indonesia
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15
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Chen Y, Zhou R, Yi Z, Li Y, Fu Y, Zhang Y, Li P, Li X, Pan Y. Porphyromonas gingivalis induced inflammatory responses and promoted apoptosis in lung epithelial cells infected with H1N1 via the Bcl‑2/Bax/Caspase‑3 signaling pathway. Mol Med Rep 2018; 18:97-104. [PMID: 29750299 PMCID: PMC6059728 DOI: 10.3892/mmr.2018.8983] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 03/28/2018] [Indexed: 12/12/2022] Open
Abstract
The aim of the present study was to investigate the effects of Porphyromonas gingivalis (P. gingivalis) on inflammatory cytokine and nitic oxide (NO) production in lung epithelial cells infected with H1N1, and the underlying mechanisms. Lung epithelial cells were co-infected with P. gingivalis and H1N1. The concentrations of tumor necrosis factor-α (TNF-α), interleukin (IL)-1β and IL-6 were detected via an ELISA, and the concentration of NO was detected by the nitrate reductive enzymatic method at 4, 8, 12 and 24 h following infection. The expression levels of inducible NO synthase (iNOS) was detected by western blotting. The apoptotic rate of lung epithelial cells was detected by flow cytometry. The relative protein expression levels of B-cell lymphoma-2 (Bcl-2), Bcl-2-associated X protein (Bax) and caspase-3 in lung epithelial cells were detected by western blotting. Compared with the control group, the concentration of the inflammatory cytokines TNF-α, IL-1β and IL-6 exhibited a significant increase (P<0.05) in the viral-infected, bacterial-infected and co-infected groups. The concentration of NO also increased significantly (P<0.05), along with the rise in the expression levels of iNOS (P<0.05) and the increase in the apoptosis rate of lung epithelial cells (P<0.05). The relative expression levels of caspase-3 and Bax proteins were increased significantly in the viral- and bacterial-infected groups when compared with the control. The relative expression levels of Bcl-2 protein exhibited a significant decrease in lung epithelial cells following the co-infection with P. gingivalis and H1N1 compared with the control (P<0.05). The results of the present study revealed that the combination of P. gingivalis and H1N1 infection in lung epithelial cells may promote the production of inflammatory cytokines and increase NO production, leading to increased levels of apoptosis in lung epithelial cells via the Bcl-2/Bax/caspase-3 signaling pathway.
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Affiliation(s)
- Yongju Chen
- School of Stomatology, Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Rui Zhou
- Department of Stomatology, The Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Zhe Yi
- Department of Stomatology, School of Stomatology, China Medical University, Shenyang, Liaoning 110002, P.R. China
| | - Yonggang Li
- Department of Pathogeny Biology, Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Ying Fu
- Department of Stomatology, The Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Yibo Zhang
- Department of Pathogeny Biology, Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Ping Li
- School of Stomatology, Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Xin Li
- School of Stomatology, Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Yaping Pan
- Department of Stomatology, School of Stomatology, China Medical University, Shenyang, Liaoning 110002, P.R. China
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16
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Candeo LC, Rigonato-Oliveira NC, Brito AA, Marcos RL, França CM, Fernandes KPS, Mesquita-Ferrari RA, Bussadori SK, Vieira RP, Lino-dos-Santos-Franco A, Ligeiro-Oliveira AP, Horliana ACRT. Effects of periodontitis on the development of asthma: The role of photodynamic therapy. PLoS One 2017; 12:e0187945. [PMID: 29145431 PMCID: PMC5689838 DOI: 10.1371/journal.pone.0187945] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 10/28/2017] [Indexed: 01/04/2023] Open
Abstract
To evaluate whether periodontitis modulates lung inflammation in an experimental model of asthma as well as the photodynamic therapy (PDT) is associated with a reduction of lung inflammation. Seventy-two BALB/c male mice (~2 months) were randomly divided into 8 groups (n = 9): Basal, Periodontitis (P), P+PT, P+PT+PDT, Asthma (A), A+P, A+P+PT, and A+P+PT+PDT. Periodontitis was induced by using the ligature technique and asthma was induced by ovalbumin (OVA). PT was performed with curettes and PDT with methylene blue (0.005%), λ = 660nm, with a radiant exposure of 318J/cm2. After 43 days, euthanasia was carried out prior to lung and mandible morphological analyzes. All of the manipulations of the animals were performed by only one operator. The total and differential cell counts and cytokines IL-4, IL-5, IL-10, IFN-γ, TNF-α, IL-1β, and IL-6 were evaluated in the bronchoalveolar lavage (BAL) and in the serum. Mucus and alkaline phosphatase were also quantified. Statistical analyzes were performed by a blinded statistician. One-way analysis of variance (ANOVA) was employed, followed by the Student-Newman-Keuls test. Periodontitis group (P) increased alkaline phosphatase and bone resorption (p<0.05), validating the experimental model of periodontitis. The A group and the P group increased the total amount of cells (p <0.05) in the BAL. However, in the A+P group, there was a decrease in these cells, except for in the A+P+PT+PDT group (p<0.05). The asthma group increased the Th2 cytokines and P group increased the Th1 cytokine profile, and A+P+PT+PDT group increased IL-10 cytokine. Mucus was increased for the A and P groups. In conclusion, periodontitis in the asthmatic mice reduced the inflammatory migrated cells in the BAL (eosinophils, lymphocytes, macrophages). In addition, it reduced the levels of the IL-4 and TNF-α cytokines, which was also accompanied by a decreased mucus production. After PDT treatment the total cell count increased however, this increase was not accompanied by a pro-inflammatory cytokines release. Only in PDT group the anti-inflammatory IL-10 was increased. Further studies are needed to understand this mechanism of action.
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Affiliation(s)
- Larissa Carbonera Candeo
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | | | - Aurileia Aparecida Brito
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Rodrigo Labat Marcos
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Cristiane Miranda França
- Division of Biomaterials and Biomechanics, Department of Restorative Dentistry, OHSU School of Dentistry, Portland, Oregon, United States of America
| | | | - Raquel Agnelli Mesquita-Ferrari
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
- Post Graduate Program in Rehabilitation Sciences, Universidade Nove de Julho, UNINOVE, São Paulo, Brazil
| | - Sandra Kalil Bussadori
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
- Post Graduate Program in Rehabilitation Sciences, Universidade Nove de Julho, UNINOVE, São Paulo, Brazil
| | - Rodolfo Paula Vieira
- Instituto Brasileiro Ensino/Pesquisa em Imunologia Pulmonar e do Exercício, São Jose dos Campos, São Paulo, Brazil
| | | | - Ana Paula Ligeiro-Oliveira
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
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17
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Doras C, Petak F, Bayat S, Baudat A, Von Garnier C, Eigenmann P, Habre W. Lung responses in murine models of experimental asthma: Value of house dust mite over ovalbumin sensitization. Respir Physiol Neurobiol 2017; 247:43-51. [PMID: 28890402 DOI: 10.1016/j.resp.2017.09.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 08/08/2017] [Accepted: 09/02/2017] [Indexed: 11/25/2022]
Abstract
Ovalbumin (OVA) sensitization has limitations in modelling asthma. Thus, we examined the value of allergic sensitization using a purified natural allergen, house dust mite (HDM), over the sensitization performed with OVA. Mice were sham-treated, or sensitized with OVA- or HDM with identical chronology. Airway resistance, tissue damping and elastance were assessed under control conditions and after challenging the animals with methacholine (MCh) and the specific allergen. Inflammatory profile of the bronchoalveolar lavage fluid was characterized and lung histology was performed. While no difference in the lung responsiveness to the specific allergen was noted, hyperresponsiveness to MCh was observed only in the HDM-sensitized animals in the lung peripheral parameters. Lung inflammation differed between the models, but excessive bronchial smooth muscle remodelling occurred only with OVA. In conclusion, we demonstrate that a purified natural allergen offers a more relevant murine model of human allergic asthma by expressing the key features of this chronic inflammatory disease both in the lung function and structure.
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Affiliation(s)
- Camille Doras
- Anaesthesiological Investigations Unit, University Hospitals of Geneva, Geneva, Switzerland
| | - Ferenc Petak
- Department of Medical Physics and Informatics, University of Szeged, Szeged, Hungary
| | - Sam Bayat
- Anaesthesiological Investigations Unit, University Hospitals of Geneva, Geneva, Switzerland
| | - Aurélie Baudat
- Anaesthesiological Investigations Unit, University Hospitals of Geneva, Geneva, Switzerland
| | | | - Philippe Eigenmann
- Department of Paediatrics, University Hospitals of Geneva, Geneva, Switzerland
| | - Walid Habre
- Anaesthesiological Investigations Unit, University Hospitals of Geneva, Geneva, Switzerland.
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18
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Rivera R, Andriankaja OM, Perez CM, Joshipura K. Relationship between periodontal disease and asthma among overweight/obese adults. J Clin Periodontol 2016; 43:566-71. [PMID: 27028763 PMCID: PMC4900929 DOI: 10.1111/jcpe.12553] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/24/2016] [Indexed: 12/20/2022]
Abstract
AIM To assess the relationship between oral health and asthma. METHODS Data from 1315 overweight or obese individuals, aged 40-65 years were used. Asthma was self-reported, whereas periodontitis, bleeding on probing (BOP) and plaque index were determined by clinical examinations. RESULTS Using logistic regression adjusting for gender, smoking status, age, body mass index, family history of asthma and income level, revealed that the odds ratio (OR) of asthma for a participant with severe periodontitis was 0.44 (95% confidence interval: 0.27, 0.70) that of a participant with none/mild periodontitis. On the other hand, proportion of BOP sites and plaque index were not statistically significant. For a participant with severe periodontitis, the OR of taking asthma medication was 0.20 (95% confidence interval: 0.09, 0.43) that of a participant with none/mild periodontitis. Moreover, proportion of BOP sites was statistically associated with use of asthma medication, whereas plaque index still remained non-significant. CONCLUSION Participants with severe periodontitis were less likely to have asthma. Stronger evidence of an inverse association was found when using asthma medication as outcome.
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Affiliation(s)
- Roberto Rivera
- College of Business, University of Puerto Rico, Mayaguez
| | | | - Cynthia M. Perez
- School of Public Health, University of Puerto Rico, Medical Science Campus
| | - Kaumudi Joshipura
- School of Dental Medicine, University of Puerto Rico, Medical Science Campus
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19
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Shunsheng Han C. A specific hygiene hypothesis. Med Hypotheses 2016; 93:146-9. [PMID: 27372876 DOI: 10.1016/j.mehy.2016.05.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 05/24/2016] [Indexed: 10/21/2022]
Abstract
Allergic diseases have reached epidemic proportions in Western populations in the last several decades. The hygiene hypothesis proposed more than twenty years ago has helped us to understand the epidemic and has been verified with numerous studies. However, translational measures deduced from these studies to prevent allergic diseases have not proven effective. Recent studies on immigrants' allergies and any potential association between oral infection and allergic diseases prompt me to propose a specific hygiene hypothesis to explain how oral hygiene practices might have contributed to the uprising of hay fever, the most common allergic disease. The historic oral hygiene level in US is closely associated with the emerging allergic epidemic. Future studies to test the hypothesis are needed and verification of the hypothesis can potentially yield highly effective measures to prevent allergic diseases.
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Affiliation(s)
- Cliff Shunsheng Han
- Los Alamos National Laboratory, Bioscience Division and Quality Performance Assurance Division, MS, M888, Los Alamos, NM 87545, USA
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20
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DeLia D, Lloyd K, Feldman CA, Cantor JC. Patterns of emergency department use for dental and oral health care: implications for dental and medical care coordination. J Public Health Dent 2015; 76:1-8. [DOI: 10.1111/jphd.12103] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 04/14/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Derek DeLia
- Center for State Health Policy; Rutgers University; New Brunswick NJ USA
| | - Kristen Lloyd
- Center for State Health Policy; Rutgers University; New Brunswick NJ USA
| | | | - Joel C. Cantor
- Center for State Health Policy; Rutgers University; New Brunswick NJ USA
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21
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Reddy BVR, Chava VK, Nagarakanti S, Gunupati S, Samudrala P. Hygiene hypothesis and periodontitis--a possible association. Med Hypotheses 2013; 82:60-3. [PMID: 24268739 DOI: 10.1016/j.mehy.2013.11.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 11/06/2013] [Indexed: 01/22/2023]
Abstract
Hygiene hypothesis has been proposed more than two decades back to explain an increasing prevalence of allergic diseases and atopy. It states that, a lack of early childhood exposure to infectious agents increases susceptibility to allergic diseases and atopy later in life. The evidence in relation to hygiene hypothesis is controversial and inconclusive. Moreover, its underlying mechanisms are elusive and remain to be elucidated. Periodontitis is an inflammatory disease initiated by microorganisms present in the plaque biofilm. Association between periodontitis and various systemic diseases has already been established and is currently an area of interest particularly in periodontal research. Consistent with hygiene hypothesis, some researchers believed that pathogens associated with periodontal diseases might have a protective role in the development of asthma and other allergic diseases. Very few studies attempted to explore the concept of association between periodontitis, asthma and other respiratory allergic diseases which could neither support such a protective role for periodontal diseases nor reject such an association. This suggests a need for additional research to examine the relevance of hygiene hypothesis in periodontics. The purpose of the present article is to review the plausible scientific explanations available for hygiene hypothesis, to review some studies relating periodontitis, asthma and other respiratory allergic diseases and to stress the need for further research.
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Affiliation(s)
| | - Vijay Kumar Chava
- Department of Periodontology, Narayana Dental College and Hospital, Nellore, Andhra Pradesh 524002, India
| | - Sreenivas Nagarakanti
- Department of Periodontology, Narayana Dental College and Hospital, Nellore, Andhra Pradesh 524002, India
| | - Sumanth Gunupati
- Department of Periodontology, Narayana Dental College and Hospital, Nellore, Andhra Pradesh 524002, India
| | - Pramod Samudrala
- Department of Periodontology, Narayana Dental College and Hospital, Nellore, Andhra Pradesh 524002, India
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22
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Bąbolewska E, Witczak P, Pietrzak A, Brzezińska-Błaszczyk E. Different potency of bacterial antigens TLR2 and TLR4 ligands in stimulating mature mast cells to cysteinyl leukotriene synthesis. Microbiol Immunol 2012; 56:183-90. [PMID: 22233438 DOI: 10.1111/j.1348-0421.2012.00426.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The aim of study was to compare the potency of different bacterial antigens to induce rat mature mast cell to cysteinyl leukotriene (cysLT) generation. We examined Toll-like receptor (TLR)2 agonists, i.e. lipoteichoic acid (LTA) Staphylococcus faecalis, Streptococcus pyogenes, Bacillus subtilis and Staphylococcus aureus, lipoarabinomannan (LAM) Mycobacterium smegmatis, peptydoglican (PGN) Staphylococcus aureus, as well as TLR4 agonists, i.e. lipopolysaccharide (LPS) Klebsiella pneumoniae, Pseudomonas aeruginosa, Salmonella enteritidis, Pophyromonas gingivalis and Escherichia coli. We also estimated the effect of tumor necrosis factor (TNF)-, interleukin (IL)-6-, CCL5-, and IL-10-priming on mast cell cysLT synthesis following bacterial antigen activation. We found that all bacterial antigens activated mast cells to cysLT generation; however, the extent of cysLT release in response to stimulation varied. Out of the examined antigens LPS P. gingivalis exhibited the highest potency, as it induced cysLT generation acting at a very low concentration (10(-4) ng/mL). Other LPSs affected mast cells at higher (up to 10(5) -fold) concentrations. LTAs were the most effective at concentrations of 5 × 10(2) ng/mL, while LAM and PGN stimulated mast cells to maximal cysLT generation at concentrations as high as 10(5) ng/mL. Anti-TLR2 and anti-TLR4 antibodies, as well as nuclear factor κB (NF-κB) inhibitor significantly diminished cysLT generation in response to bacterial antigen stimulation. Priming with TNF, IL-6 and CCL5 did not affect bacterial antigen-induced cysLT generation, while IL-10-pretreatment caused significant decrease in cysLT synthesis by mast cells. These observations might have a great pathophysiological importance; inasmuch cysLTs strongly influence the development and intensity of inflammation during bacterial infection.
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Affiliation(s)
- Edyta Bąbolewska
- Department of Experimental Immunology, Medical University of Łódź, Łódź, Poland
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23
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Arbes SJ, Matsui EC. Can oral pathogens influence allergic disease? J Allergy Clin Immunol 2011; 127:1119-27. [PMID: 21531254 DOI: 10.1016/j.jaci.2011.03.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Revised: 03/11/2011] [Accepted: 03/15/2011] [Indexed: 01/29/2023]
Abstract
The hygiene hypothesis contends that fewer opportunities for infections and microbial exposures have resulted in more widespread asthma and atopic disease. Consistent with that hypothesis, decreases in infectious oral diseases over the past half century have coincided with increases in the prevalence of asthma and other allergic diseases. This observation has led some researchers to speculate that exposures to oral bacteria, including pathogens associated with periodontal diseases, such as gingivitis and periodontitis, might play a protective role in the development of asthma and allergy. Colonization of the oral cavity with bacteria, including some species of periodontal pathogens, begins shortly after birth, and the detection of serum antibodies to oral pathogens in early childhood provides evidence of an early immune response to these bacteria. Current knowledge of the immune response to oral bacteria and the immunologic pathogenesis of periodontal diseases suggests biologically plausible mechanisms by which oral pathogens could influence the risk of allergic disease. However, studies investigating the association between oral pathogen exposures and allergic disease are few in number and limited by cross-sectional or case-control design, exclusion of young children, and use of surrogate measures of oral bacterial colonization. Additional studies, particularly well-designed case-control studies among very young children and prospective birth cohort studies, are needed.
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Crother TR, Schröder NWJ, Karlin J, Chen S, Shimada K, Slepenkin A, Alsabeh R, Peterson E, Arditi M. Chlamydia pneumoniae infection induced allergic airway sensitization is controlled by regulatory T-cells and plasmacytoid dendritic cells. PLoS One 2011; 6:e20784. [PMID: 21695198 PMCID: PMC3112152 DOI: 10.1371/journal.pone.0020784] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Accepted: 05/09/2011] [Indexed: 12/23/2022] Open
Abstract
Chlamydia pneumoniae (CP) is associated with induction and exacerbation of asthma. CP infection can induce allergic airway sensitization in mice in a dose- and time-dependent manner. Allergen exposure 5 days after a low dose (mild-moderate), but not a high dose (severe) CP infection induces antigen sensitization in mice. Innate immune signals play a critical role in controlling CP infection induced allergic airway sensitization, however these mechanisms have not been fully elucidated. Wild-type, TLR2-/-, and TLR4-/- mice were infected intranasally (i.n.) with a low dose of CP, followed by i.n. exposure to human serum albumin (HSA) and challenged with HSA 2 weeks later. Airway inflammation, immunoglobulins, eosinophils, and goblet cells were measured. Low dose CP infection induced allergic sensitization in TLR2-/- mice, but not in TLR4-/- mice, due to differential Treg responses in these genotypes. TLR2-/- mice had reduced numbers of Tregs in the lung during CP infection while TLR4-/- mice had increased numbers. High dose CP infection resulted in an increase in Tregs and pDCs in lungs, which prevented antigen sensitization in WT mice. Depletion of Tregs or pDCs resulted in allergic airway sensitization. We conclude that Tregs and pDCs are critical determinants regulating CP infection-induced allergic sensitization. Furthermore, TLR2 and TLR4 signaling during CP infection may play a regulatory role through the modulation of Tregs.
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Affiliation(s)
- Timothy R. Crother
- Pediatrics Infectious Diseases, Cedars-Sinai Medical Center, University of California Los Angeles, Los Angeles, California, United States of America
| | - Nicolas W. J. Schröder
- Pediatrics Infectious Diseases, Cedars-Sinai Medical Center, University of California Los Angeles, Los Angeles, California, United States of America
| | - Justin Karlin
- Pediatrics Infectious Diseases, Cedars-Sinai Medical Center, University of California Los Angeles, Los Angeles, California, United States of America
| | - Shuang Chen
- Pediatrics Infectious Diseases, Cedars-Sinai Medical Center, University of California Los Angeles, Los Angeles, California, United States of America
| | - Kenichi Shimada
- Pediatrics Infectious Diseases, Cedars-Sinai Medical Center, University of California Los Angeles, Los Angeles, California, United States of America
| | - Anatoly Slepenkin
- Department of Pathology, University of California Irvine, Irvine, California, United States of America
| | - Randa Alsabeh
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, University of California Los Angeles, Los Angeles, California, United States of America
| | - Ellena Peterson
- Department of Pathology, University of California Irvine, Irvine, California, United States of America
| | - Moshe Arditi
- Pediatrics Infectious Diseases, Cedars-Sinai Medical Center, University of California Los Angeles, Los Angeles, California, United States of America
- * E-mail:
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25
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da Fonseca DM, Trombone APF, Repeke CE, Avila-Campos MJ, Coelho-Castelo AAM, Silva JS, Campanelli AP, Deperon Bonato VL, Garlet GP. Functional interferences in host inflammatory immune response by airway allergic inflammation restrain experimental periodontitis development in mice. J Clin Periodontol 2010; 38:131-41. [DOI: 10.1111/j.1600-051x.2010.01660.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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