ABSTRACT
Background: Periodontitis is a chronic inflammatory condition affecting the supporting structures of a tooth in the oral cavity. The relationship between dietary fiber and periodontitis is poorly understood. The objective of this systematic review is to investigate if an intake of dietary fiber modulates periodontal disease in animal models and any concomitant effects on systemic inflammation, microbiota and their metabolites. Methods: Animal studies using periodontitis models with any form of fiber intervention were included. Studies with comorbidities that were mutually inclusive with periodontitis and animals with physiological conditions were excluded. Search strategy with MeSH and free-text search terms were finalized and performed on the 22nd of September 2021.CINAHL Complete, EMBASE, MEDLINE, SciVerse Scopus® and Web of Science Core Collection databases were used to identify studies. SYRCLE's risk of bias tool and CAMARADES were used for quality assessment. Results were synthesized utilizing Covidence© web-based platform software to remove duplicates, and the remaining studies were manually filtered. Results: A total of 7,141 articles were retrieved from all databases. Out of 24 full-text articles assessed for eligibility, four studies (n = 4) were included. Four studies involved the use of ß-(1,3/1,6)-glucan (n = 3) and mannan oligosaccharide (n = 1) at differing dosages for different study durations. All studies utilized a ligature-induced model of periodontitis in rats, either Wistar (n = 3) or Sprague-Dawley (n = 1). A dose-dependent relationship between the increased fiber intake and decrease in alveolar bone loss and pro-inflammatory markers was observed. Conclusion: The number of included studies is limited and narrow in scope. They highlight the importance of pre-clinical trials in this field with broader dietary fiber intervention groups before proceeding to clinical trials. The use of dietary fiber as an intervention shows promise in the reduction of inflammatory conditions like periodontitis. However, further research is required to delineate the relationship between diet and its effects on microbiota and their metabolites such as short chain fatty acids in animal models of periodontitis.
ABSTRACT
Objective: It is important to understand the factors associated with vaccination hesitancy for a given population for successful coronavirus disease-2019 (COVID-19) immunization program. This survey aimed to examine the prevalence of vaccine hesitancy and associated sociodemographic factors. Methods: A cross-sectional online survey was undertaken by circulating through social media platforms. Survey questions included sociodemographics and vaccination acquisition-related questions. Results: The study comprised a total of 3621 respondents. Over one-fifth of the unvaccinated population were identified as vaccine hesitancy group. Ethnicity and district indicated significant associations with vaccine hesitancy (P < 0.05). Indian Tamils (Odds Radio [OR] 2.222;95%Confidence interval [CI], 1.150–4.294;P = 0.018), Sri Lankan Tamils (OR 1.714;95% CI, 1.181–2.488;P = 0.005), and Sri Lankan Moors (OR 1.913;95% CI, 1.316–2.781;P = 0.001) had significantly higher odds of vaccine hesitancy when compared to the Sinhalese. People in rural areas also had greater odds of vaccine hesitancy (OR 1.339;95% CI, 1.000–1.793;P = 0.05) compared to municipal council areas. Conclusion: Vaccine hesitancy was considerably high in this survey population. Our results emphasize the need of the Sri Lankan government taking appropriate efforts to establish a targeted COVID-19 vaccination campaign plan for rural and Colombo district residents. Attention should also be given to ethnic minority groups. [ FROM AUTHOR]