Objective: The primary purpose of this study was to evaluate and compare the microbial loads and pathogenicity traits of oral in denture-wearing (DW; = 15) and nondenture-wearing (NDW; = 15) elderly persons.
Materials And Methods: The fungal counts of the saliva, tongue dorsa, and prosthesis-fitting surfaces of the participants were assessed using real-time polymerase chain reaction to compare the quantity and expression of selected biofilm-associated genes (, , and ).
Statistical Analysis: The obtained data were analyzed by one-way analysis of variance, followed by Bartlett's test. When appropriate, the Student's -test was also used; a value of < 0.05 was considered statistically significant.
Results: In both groups, the count of was found to be significantly higher in saliva than in other oral samples. The expression of the hypha-specific genes ( and ) in the tongue dorsa was higher in the DW group ( < 0.05), whereas the transcription level of the yeast-specific gene ( was significantly higher in the NDW group.
Conclusion: Both tongue dorsa and dentures appear to be sharing factors that are important for biofilm growth in abiotic and biotic oral surfaces of the elderly.
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http://dx.doi.org/10.1055/s-0040-1712779 | DOI Listing |
PLoS One
October 2021
Intellectual Ventures Laboratory, Bellevue, Washington, United States of America.
Oral swab analysis (OSA) has been shown to detect Mycobacterium tuberculosis (MTB) DNA in patients with pulmonary tuberculosis (TB). In previous analyses, qPCR testing of swab samples collected from tongue dorsa was up to 93% sensitive relative to sputum GeneXpert, when 2 swabs per patient were tested. The present study modified sample collection methods to increase sample biomass and characterized the viability of bacilli present in tongue swabs.
View Article and Find Full Text PDFJ Nippon Med Sch
January 2021
Department of Pediatrics, Nippon Medical School Hospital.
Kawasaki disease (KD) is a systemic vasculitis of unknown cause and is associated with various digestive disorders, although only a few cases of intussusception associated with KD have been reported. We describe a case of intussusception followed by KD in a 3-year-old boy. The patient was admitted to our hospital for evaluation of severe abdominal pain.
View Article and Find Full Text PDFEur J Dent
July 2020
Department of Oral Biology and Oral Science Research Center, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia.
Objective: The primary purpose of this study was to evaluate and compare the microbial loads and pathogenicity traits of oral in denture-wearing (DW; = 15) and nondenture-wearing (NDW; = 15) elderly persons.
Materials And Methods: The fungal counts of the saliva, tongue dorsa, and prosthesis-fitting surfaces of the participants were assessed using real-time polymerase chain reaction to compare the quantity and expression of selected biofilm-associated genes (, , and ).
Statistical Analysis: The obtained data were analyzed by one-way analysis of variance, followed by Bartlett's test.
Odontology
July 2020
Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, University of the Western Cape and Tygerberg Hospital, Cape Town, South Africa.
Halitosis (bad breath) can be a cause of anxiety, depression and psychosocial stress, with pathological changes in the oral microbiota playing an important role in its development. Despite its prevalence, studies on the microbiology of halitosis are rare in Nigeria. This study determines the presence of five putative periodontal pathogens viz: Actinobacillus actinomycetemcomitans, Fusobacterium nucleatum, Porphyromonas gingivalis, Prevotella intermedia and Treponema denticola on the tongue dorsa of halitosis and non-halitosis patients using a 16S rDNA-directed polymerase chain reaction assay.
View Article and Find Full Text PDFBMC Oral Health
February 2017
Iwate Medical University, 19-1 Uchimaru, Morioka, Iwate, 020-8505, Japan.
Background: Candida species are normal commensal organisms of the mouth. However, they can cause oral mucosal and severe systemic infections in persons with reduced immune function, which is common in the very elderly. In post-disaster areas, the number of elderly residents rapidly increases due to the outflow of younger generations.
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