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Objective: To explore the clinical epidemiological characteristics of oral lichen planus (OLP) and risk factors for erosive/ulcerative OLP. Materials and Methods: Patients diagnosed with OLP from 11 different hospitals were included in the study. Descriptive statistical methods were used to explore the clinical epidemiological characteristics and logistic regression, sensitivity analysis, and subgroup analysis were utilized to explore the risk factors for erosive/ulcerative OLP. Results: The average age of patients was 49.2 ± 13.3 years, and 61.4% of the patients were women. The ratios of patients with reticular, hyperemic/erythematous, and erosive/ulcerative lesions were 47.9%, 27.8%, and 24.2%, respectively. Analysis of risk factors for erosive/ulcerative OLP identified the following variables: age, course of disease of 12 months or more, II°–III° dental calculus, hypertension, diabetes, and heart disease, as well as regions of habitation. Subgroup analysis showed significant differences in risk factors for erosive/ulcerative OLP in patients with and without risk behaviors. Conclusion: The clinical epidemiological characteristics of patients with OLP in the Chinese population in this study are basically consistent with existing reports in developed countries. And we identified clinical characteristics associated with erosive/ulcerative OLP through clinical epidemiological analysis. [ABSTRACT FROM AUTHOR]

Background: Serum response factor (SRF) and myocardial‐associated transcription factor‐A (MRTF‐A) had different regulatory effects on the tumorigenesis and development in different cancers. However, the role of MRTF‐A/SRF in oral squamous cell carcinoma (OSCC) remains to be determined. Methods: CCK‐8 assay, cell scratch experiment, and transwell invasion assay were conducted to investigate the effects of MRTF‐A/SRF on biological behavior of OSCC cells. The expression pattern and prognostic value of MRTF‐A/SRF in OSCC were analyzed based on cBioPortal website and TCGA database. Protein–protein interaction network was visualized to identify protein functions. Go and KEGG pathway analyses were performed to investigate related pathways. The effect of MRTF‐A/SRF on epithelial–mesenchymal transformation (EMT) of OSCC cells was explored by western blot assay. Results: Overexpression of MRTF‐A/SRF inhibited the proliferation, migration, and invasion of OSCC cells in vitro. High expression of SRF was related to better prognosis of OSCC patients on hard palate, alveolar ridge, and oral tongue. Besides, overexpression of MRTF‐A/SRF inhibited the EMT of OSCC cells. Conclusion: SRF was closely related to the prognosis of OSCC. High expression of SRF and its co‐activator MRTF‐A inhibited proliferation, migration, and invasion of OSCC cells in vitro, possibly via EMT suppression. [ABSTRACT FROM AUTHOR]

Objectives: Oral lichen planus, a chronic inflammatory immune disease, occurs in the oral mucosa. We aimed to assess the prevalence and possible influencing factors of oral lichen planus in patients with diabetes mellitus. Subjects and Methods: This cross‐sectional study involved 525 patients with diabetes mellitus and 525 controls. We collected information on blood glucose level, duration of diabetes, diabetic complications, treatment methods, other systemic diseases and medication history. Results: Oral lichen planus was significantly more prevalent in the diabetes mellitus/type 2 diabetes mellitus group than in the controls (2.3%/2.2% vs. 0.6%, p = 0.019/0.022). There was no significant association between patients with diabetes mellitus with and those without oral lichen planus in age (p = 0.195), sex (p = 0.390), blood glucose level (p = 1), duration of diabetes (p = 0.638), diabetic complications (p = 1), treatment methods (p = 0.962), other systemic diseases (p = 0.891) and medication history (p = 0.848). Conclusions: Diabetes mellitus was associated with oral lichen planus; there was a higher prevalence of oral lichen planus in patients with diabetes mellitus/type 2 diabetes mellitus than in those without diabetes. Oral lichen planus development in patients with diabetes mellitus was not significantly associated with age, sex, blood glucose level, duration of diabetes, diabetic complications, treatment methods, other systemic diseases and medication history. [ABSTRACT FROM AUTHOR]

Objective: To examine the comparative efficacy and safety of topical administration for oral lichen planus. Materials and Methods: An electronic database search (1st January 1946 to 1st May 2020) for randomised controlled trials identified 34 studies involving eight interventions (clobetasol, betamethasone, triamcinolone, dexamethasone, fluocinolone, tacrolimus, pimecrolimus, and cyclosporine); these studies were subjected to network meta‐analysis using direct and indirect comparisons [efficacy indicators: clinical response rate, symptom‐reducing effect (visual analogue scale score), sign‐reducing effect (Thongprasom‐scale score) and relapse; safety indicator: adverse event occurrence]. Results: Compared with placebo, tacrolimus had the best clinical response rate (odds ratio (OR), 57.78 [95% CI 3.15–1060.52]; P–score, 0.8654) and cyclosporine had the worst (OR, 3.61[95% CI 0.20–66.62]; P–score, 0.2236); tacrolimus had the best symptom‐reducing effect (standardised mean difference (SMD), 1.06 [95% CI 0.41–1.71]; P–score, 0.9323) and fluocinolone had the worst (SMD, −0.54 [95% CI −1.44–0.36]; P–score, 0.0157); dexamethasone had the best sign‐reducing effect (SMD, 3.60 [95% CI 1.74–5.45]; P–score, 0.8306) and clobetasol had the worst (SMD, 2.63 [95% CI 1.66–3.61]; P–score, 0.2581); and pimecrolimus performed best (OR, 0.04 [95% CI 0.00–0.64]; P–score, 0.9227) and clobetasol performed the worst [OR, 0.60; 95% CI 0.15–2.45; P–score, 0.2545] in reducing relapse. Regarding safety, dexamethasone was the safest compared with placebo [OR, 0.37; 95% CI 0.05–2.57; P–score, 0.9337), whereas fluocinolone ranked low for safety [OR, 9.48; 95% CI 1.50– 60.03; P–score, 0.1189]. Conclusions: The relative ranking of topical administration varies according to the different indicators. Based on the joint consideration of clinical response rate and adverse event occurrence, dexamethasone, triamcinolone and betamethasone are recommended for better efficacy and safety. The optimal treatment for oral lichen patients varies under different conditions. [ABSTRACT FROM AUTHOR]

Objectives: To investigate the association between oral lichen planu(OLP) and anxiety. Subjects and Methods: This study included 174 OLP patients and 174 healthy controls. We assessed anxiety by Self‐rating Anxiety Scale (SAS) and recorded OLP lesion type and severity. t test and analysis of variance were applied for continuous variants and chi‐square test was performed for categorical variants. Multiple linear regression and logistic regression analysis were used for multi‐variable analysis. Results: he SAS score of OLP patients was higher than that of healthy individuals. There was no significant difference in SAS score between the OLP subgroups, obtained according to age, type, and severity, respectively. Multiple linear regression analysis showed gender was the only factor that affected the SAS score of OLP patients. Compared with weakly anxiety‐related groups, the SAS score and female ratio of highly anxiety‐related group were obviously higher. Logistic regression analysis demonstrated that males were less exposed to highly anxiety‐related types than females. Conclusions: OLP patients tend to be more anxious compared with healthy individuals, and female patients are more anxious than male patients. There might be two types of OLP patients: weakly anxiety‐related or highly anxiety‐related. These results highlight the significance of psychological counseling in OLP disease management. [ABSTRACT FROM AUTHOR]

Objective: There were rarely investigations on the effects and molecular mechanisms of oral squamous cell carcinoma (OSCC) cells when treated with isorhamnetin. This article assesses the anti‐cancer effect of isorhamnetin. Methods and materials: Oral squamous cell carcinoma cells were treated with or without isorhamnetin. Cell proliferation, cell cycle arrest, cell migration, cell death, and the related signaling pathways were evaluated. Results: The results revealed that cell proliferation was inhibited in a dose‐ and time‐dependent manner, which was confirmed by diminished cell viability and revealed by decreased in the number of cell colonies. In addition, the cell cycle arrested in the G2/M phase, and the protein levels of cyclin B1 and CDC2 were suppressed. Moreover, the cell migration was inhibited, and the protein levels of related proteins were modulated. Furthermore, it could be observed that abundant cytoplasmic vacuoles existed which that were derived from mitochondria and the endoplasmic reticulum. It was confirmed that cell death did not result from apoptosis and may have which may be apt to paraptosis. Isorhamnetin was observed to upregulate phosphorylated ERK cascades and increase intracellular reactive oxygen species levels. Conclusions: Our study suggested that the anti‐cancer effect of isorhamnetin might trigger paraptosis, which may indicate a new therapeutic approach to OSCC. [ABSTRACT FROM AUTHOR]