Oral diseases最新文献

Objective: This study aimed to compare salivary levels of galectin-8, galectin-9, and RANKL in individuals with gingivitis, periodontitis, and healthy periodontium, and to evaluate their diagnostic potential in periodontal diseases.

Methods: A total of 60 systemically healthy, non-smoking individuals were included in this cross-sectional study. Participants were divided into three groups based on periodontal examination: healthy (Group H, n = 20), gingivitis (Group G, n = 20), and periodontitis (Group P, n = 20). Clinical periodontal parameters were recorded. Salivary biomarker levels were analyzed using ELISA.

Results: All biomarkers were significantly elevated in groups G and P compared to group H (p < 0.05), and higher in group P than group G (p < 0.05). ROC analysis revealed that galectin-9 (AUC = 0.946) was significantly better at distinguishing periodontal disease than galectin-8 (AUC = 0.832) and RANKL (AUC = 0.780) (p < 0.05). No significant difference was observed between galectin-8 and RANKL (p > 0.05).

Conclusion: Salivary galectin-8, galectin-9, and RANKL levels are elevated in periodontal disease and may serve as diagnostic biomarkers. Among them, galectin-9 demonstrated superior discriminative power for identifying periodontal disease.

Trial registration: NCT06404476.

Objectives: This study aimed to retrospectively analyze the prevalence and clinical characteristics of TUGSE and explore the potential role of viral agents in these lesions.

Methods: Fifty-seven TUGSE and 50 non-specific ulcer patients were included. Patient demographic and clinical data were collected. Formalin-fixed paraffin-embedded tissues were screened by PCR for Epstein-Barr virus (EBV), cytomegalovirus (hCMV), human papillomavirus (HPV), herpes simplex virus (HSV), and Helicobacter pylori (H. pylori).

Results: The majority of TUGSE patients were in their sixth (29.8%) and seventh (24.6%) decades of life, with a 1:1.6 male-to-female ratio. The tongue is the most common site (47.4%), followed by buccal mucosa (28.1%). The average duration was 13.5 weeks, and almost one-fourth of the lesions were clinically diagnosed as oral squamous cell carcinoma (24.6%). TUGSE showed a significantly higher propensity to harbor macrophage infiltrates and inflammatory involvement with skeletal muscle fibers or salivary gland tissues, compared to non-specific ulcers. EBV was observed in two TUGSE cases (3.5%) and one patient with a non-specific ulcer (2.0%). Other viral agents were undetectable in TUGSE.

Conclusion: TUGSE frequently affects the elderly population with a female predilection. The observed low prevalence of viral agents suggests that these pathogens may not play a direct role in TUGSE development.

Background: Mucosal-dominant pemphigus vulgaris (MD-PV) and low-risk mucous membrane pemphigoid (LR-MMP) are autoimmune bullous diseases primarily affecting the oral mucosa, yet their oral microbiome profiles remain inadequately characterized.

Methods: Using 16S rRNA sequencing of saliva from 21 MD-PV patients, 26 LR-MMP patients, and 14 healthy controls (HC), we analyzed microbial diversity, differential taxa (LEfSe), and functional potential (PICRUSt2/BugBase).

Results: Both patient groups showed significant microbial restructuring without major richness changes, featuring increased Firmicutes and decreased Proteobacteria. Disease-specific signatures included Flavobacteriia enrichment in MD-PV and Coriobacteriia/Actinobacteria in LR-MMP. Shared metabolic alterations involved "Biosynthesis of amino acids," "Phosphotransferase system," and "Ribosome" pathways, while distinct activations included "all-trans-farnesol biosynthesis" in MD-PV and "peptidoglycan biosynthesis" in LR-MMP. Phenotype prediction revealed increased Gram-positive bacteria and reduced pathogenic and stress-tolerant taxa. Microbial dysbiosis scores positively correlated with clinical disease severity.

Conclusion: Our study identifies distinct oral microbial dysbiosis patterns in MD-PV and LR-MMP, with conserved functional shifts and disease-specific metabolic adaptations. The microbiota-severity correlation highlights its potential role in disease mechanisms, offering new insights for therapeutic exploration.

Trial registration: Chinese Clinical Trial Registry (ChiCTR): ChiCTR2500105460.

Background: This study aimed to analyze the temporal trends of oral tongue squamous cell carcinoma (OTSCC) in Brazil from 2013 to 2023, comparing young adults (20 to 44 years) to older adults (≥ 45 years).

Methods: Sex, age, staging, year, and Federative Unit of diagnosis were evaluated for all cases registered under the ICD-C02 code in a public nationwide database. Statistics encompassed the Dickey-Fuller and Mann-Kendall tests, Kendall's Tau coefficient, and Sen's Slope Estimator.

Results: The registry of OTSCC increased from 2013 to 2023, with a stronger and more consistent trend in young adults. OTSCC showed a stronger, more consistent, and higher rate of increase in young females than in young males. OTSCC was diagnosed at advanced stages in both age groups. OTSCC increasing trends were pronounced in the North region.

Conclusion: This study presented an overview of the temporal trends of OTSCC in Brazil, evidencing an increase among young women.