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Han W, Jiao Y, Mi S, Han S, Xu J, Li S, Liu Y, Guo L. Stevioside reduces inflammation in periodontitis by changing the oral bacterial composition and inhibiting P. gingivalis in mice. BMC Oral Health 2023; 23:550. [PMID: 37563632 PMCID: PMC10416424 DOI: 10.1186/s12903-023-03229-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 07/14/2023] [Indexed: 08/12/2023] Open
Abstract
BACKGROUND Excessive sugar intake has become a major challenge in modern societies. Stevioside is a promising non-calorie sweetener with anti-inflammatory effects; however, its effects on the oral environment and periodontitis remain unclear. Therefore, this study explores the effect of stevioside on periodontitis in mice. METHODS Mice were divided into four groups, namely, control, treated with water, and periodontitis models, established using 5 - 0 silk sutures ligation around the second molar then infected the oral cavity with Porphyromonas gingivalis (P. gingivalis) viscous suspension, divided into three groups treated with 0.1% stevioside (P + S), 10% glucose (P + G), or water (P). Micro-CT scanning was used to assess alveolar bone resorption, while RT-PCR was used to evaluate the inflammatory factors expression and P. gingivalis invasion in the gingiva. The composition of the oral bacteria was analysed using 16 S rRNA sequence in the saliva. In addition, P. gingivalis was co-cultured with stevioside at different concentrations in vitro, and bacterial activity was detected via optical density values and live/dead staining. The virulence was detected using RT-PCR, while biofilm formation was detected using scanning electron microscopy. RESULTS Compared with 10% glucose, treatment with 0.1% stevioside reduced alveolar bone absorption and osteoclasts while decreasing IL-6, TNF-α, IL-1β, and P. gingivalis in the gingiva of periodontitis mice. The CEJ-ABC distance in the P + S group was significantly lower than that in the P and P + G groups (P < 0.05). Moreover, the composition of the oral bacteria in the P + S group was similar to that of the control. In vitro stevioside treatment also reduced the bacterial activity and toxicity of P. gingivalis in a dose-dependent manner and affected its biofilm composition. CONCLUSION Our results indicate that, compared with 10% glucose, 0.1% stevioside intake can reduce alveolar bone resorption and inflammation in periodontal tissues in mice; the bacterial composition following 0.1% stevioside intake was similar to that of a healthy environment. In vitro, high concentrations of stevioside reduced P. gingivalis activity, biofilm formation, and virulence expression. Therefore, stevioside is a potential alternative to glucose for patients with periodontitis.
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Affiliation(s)
- Wenrui Han
- Department of Orthodontics, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, People's Republic of China
| | - Yao Jiao
- Department of Orthodontics, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, People's Republic of China
| | - Sicong Mi
- Department of Orthodontics, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, People's Republic of China
| | - Shu Han
- Department of Orthodontics, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, People's Republic of China
| | - Junji Xu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, People's Republic of China
| | - Song Li
- Department of Orthodontics, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, People's Republic of China.
| | - Yi Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, People's Republic of China.
| | - Lijia Guo
- Department of Orthodontics, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, People's Republic of China.
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Eberhard J, Ruiz K, Tan J, Jayasinghe TN, Khan S, Eroglu E, Adler C, Simpson SJ, Le Couteur DG, Raubenheimer D, Macia L, Gosby AK, Ribeiro RV. A randomised clinical trial to investigate the effect of dietary protein sources on periodontal health. J Clin Periodontol 2021; 49:388-400. [PMID: 34935176 DOI: 10.1111/jcpe.13587] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/26/2021] [Accepted: 11/24/2021] [Indexed: 11/28/2022]
Abstract
AIM The aim was to assess two macronutrient interventions in a 2x2 factorial dietary design to determine their effects on oral health. MATERIALS AND METHODS Participants (65-75 years old) with a BMI between 20-35 kg/m2 of a larger RCT who consented to an oral health assessment were recruited. They had ad libitum access to one of four experimental diets (omnivorous higher fat or higher carbohydrate, semi-vegetarian higher fat or higher carbohydrate) for 4 weeks. Periodontal examination included periodontal probing depth (PPD), clinical attachment level (CAL) and bleeding on probing. Oral plaque and gingival crevicular fluid (GCF) were collected before and after the intervention. RESULTS Between baseline and follow up the number of sites with a CAL <5 mm (mean difference (MD) -5.11±9.68, P=0.039) increased and the GCF amount (MD -23.42±39.42 Periotron Units (PU), P=0.050) decreased for the semi-vegetarian high fat diet. For the mean proportion of sites with PPD reduction >1 mm and CAL gain >1 mm significant differences were calculated between the diets investigated. The clinical parameters were not associated with changes of the oral microbiota. CONCLUSION The results of this study provided evidence that a semi-vegetarian higher fat diet provides benefits to clinical parameters of periodontal health. ACTRN12616001606471. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Joerg Eberhard
- Charles Perkins Centre, University of Sydney, NSW, Australia.,The University of Sydney School of Dentistry, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Kate Ruiz
- The University of Sydney School of Dentistry, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Jian Tan
- Charles Perkins Centre, University of Sydney, NSW, Australia
| | - Thilini N Jayasinghe
- Charles Perkins Centre, University of Sydney, NSW, Australia.,The University of Sydney School of Dentistry, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Shahrukh Khan
- Charles Perkins Centre, University of Sydney, NSW, Australia
| | - Elif Eroglu
- Charles Perkins Centre, University of Sydney, NSW, Australia
| | - Christina Adler
- Charles Perkins Centre, University of Sydney, NSW, Australia.,The University of Sydney School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | | | - David G Le Couteur
- Charles Perkins Centre, University of Sydney, NSW, Australia.,Centre for Education and Research on Ageing and Alzheimer's Institute, Concord Hospital, University of Sydney, NSW, Australia.,ANZAC Research Institute, University of Sydney, Concord Hospital, NSW, Australia
| | - David Raubenheimer
- Charles Perkins Centre, University of Sydney, NSW, Australia.,School of Life and Environmental Sciences, University of Sydney, NSW, Australia
| | - Laurence Macia
- Charles Perkins Centre, University of Sydney, NSW, Australia
| | - Alison K Gosby
- Charles Perkins Centre, University of Sydney, NSW, Australia.,School of Life and Environmental Sciences, University of Sydney, NSW, Australia.,Boden Institute of Obesity, Nutrition, Exercise and Eating Disorders, University of Sydney, NSW, Australia
| | - Rosilene V Ribeiro
- Charles Perkins Centre, University of Sydney, NSW, Australia.,Centre for Education and Research on Ageing and Alzheimer's Institute, Concord Hospital, University of Sydney, NSW, Australia.,School of Life and Environmental Sciences, University of Sydney, NSW, Australia
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Choowong P, Wali JA, Nguyen ATM, Jayasinghe TN, Eberhard J. Macronutrient-induced modulation of periodontitis in rodents-a systematic review. Nutr Rev 2021; 80:1160-1178. [PMID: 34459490 DOI: 10.1093/nutrit/nuab048] [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: 11/13/2022] Open
Abstract
CONTEXT Consumption of dietary macronutrients is associated with the progression of a wide range of inflammatory diseases, either by direct modulation of host immune response or via microbiome. This includes periodontitis, a disease affecting tooth-supporting tissues. OBJECTIVE The aim of this work was to systematically review studies focusing on the effect of macronutrient (ie, carbohydrate, protein, fat) intake on periodontitis in rodents. DATA SOURCES Electronic searches were performed in February 2021 using the PubMed and Web of Science databases. Out of 883 articles reviewed, 23 studies were selected for additional analysis. DATA EXTRACTION Investigators extracted relevant data, including author names; the year of publication; article title; macronutrient composition; number and species of animals and their age at the start of the experiment; intervention period; method of periodontitis induction; and primary and secondary periodontitis outcomes. Quality assessment was done using the risk-of-bias tool for animal studies. After completing the data extraction, descriptive statistical information was obtained. DATA ANALYSIS High intakes of dietary cholesterol, saturated fatty acids, and processed carbohydrates such as sucrose, and protein-deficient diets were positively associated with periodontitis in rodents. This included greater amounts of alveolar bone loss, more lesions on periodontal tissues, and dental plaque accumulation. In contrast, high doses of milk basic protein in diets and diets with a high ratio of ω-3 to ω-6 fatty acids were negatively associated with periodontitis in rodents. CONCLUSION This work highlights the fact that, despite the large body of evidence linking macronutrients with inflammation and ageing, overall there is little information on how dietary nutrients affect periodontitis in animal models. In addition, there is inconsistency in data due to differences in methodology, outcome measurement, and dietary formulation. More studies are needed to examine the effects of different dietary macronutrients on periodontitis and investigate the underlying biological mechanisms.
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Affiliation(s)
- Phannaphat Choowong
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia.,Charles Perkins Centre, University of Sydney, Sydney, New South Wales, Australia
| | - Jibran A Wali
- Charles Perkins Centre, University of Sydney, Sydney, New South Wales, Australia.,School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Sydney, New South Wales, Australia
| | - Anh Thi Mai Nguyen
- Charles Perkins Centre, University of Sydney, Sydney, New South Wales, Australia.,School of Dentistry, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Thilini N Jayasinghe
- Charles Perkins Centre, University of Sydney, Sydney, New South Wales, Australia.,School of Dentistry, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Joerg Eberhard
- Charles Perkins Centre, University of Sydney, Sydney, New South Wales, Australia.,School of Dentistry, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
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Open Data for Open Questions in Comparative Nutrition. INSECTS 2020; 11:insects11040236. [PMID: 32283710 PMCID: PMC7240530 DOI: 10.3390/insects11040236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/02/2020] [Accepted: 04/07/2020] [Indexed: 11/26/2022]
Abstract
Achieving a better understanding of the consequences of nutrition to animal fitness and human health is a major challenge of our century. Nutritional ecology studies increasingly use nutritional landscapes to map the complex interacting effects of nutrient intake on animal performances, in a wide range of species and ecological contexts. Here, we argue that opening access to these hard-to-obtain, yet considerably insightful, data is fundamental to develop a comparative framework for nutrition research and offer new quantitative means to address open questions about the ecology and evolution of nutritional processes.
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