Oral verrucous xanthoma with oral lichen planus: a case report.

Verrucous xanthoma is a rare benign muco-cutaneous lesion, whereas oral lichen planus is a chronic inflammatory disease relatively common in the clinical setting. Verrucous xanthoma and oral lichen planus can reportedly coexist according to foreign literature. Owing to the low incidence of verrucous xanthoma and the rarity of co-occurrence of these two diseases, the mechanism underlying the co-occurrence of the two diseases remains inconclusive.

Diagnostic value of objective VELscope fluorescence methods in distinguishing oral cancer from oral potentially malignant disorders (OPMDs).

Background: The VELscope fluorescence method has been applied to the identification and detection of oral potentially malignant disorders, but autofluorescence visualization lacks objectivity and its diagnostic value varies greatly. The effectiveness of VELscope in detection of the cancer risk in oral potentially malignant disorders at different lesion sites remains unclear, given that only a few studies have investigated the value of VELscope for detecting high- and low-risk lesions in oral potentially malignant disorders. This study used the objective VELscope fluorescence method based on quantitative analysis to investigate its value in oral potentially malignant disorders for: (I) detecting oral cancer; (II) distinguishing high-risk lesions from low-risk lesions; and (III) measuring differences in oral cancer diagnostic accuracy between different sites.

Difficult and complicated oral ulceration: an expert consensus guideline for diagnosis.

The complexity of oral ulcerations poses considerable diagnostic and therapeutic challenges to oral specialists. The expert consensus was conducted to summarize the diagnostic work-up for difficult and complicated oral ulcers, based on factors such as detailed clinical medical history inquiry, histopathological examination, and ulceration-related systemic diseases screening. Not only it can provide a standardized procedure of oral ulceration, but also it can improve the diagnostic efficiency, in order to avoid misdiagnosis and missed diagnosis.

Expression of keratinocyte growth factor and its receptor in oral lichen planus.

This study aimed to investigate the expression of keratinocyte growth factor (KGF) and its receptor KGFR in oral lichen planus (OLP). Oral mucosa specimens from 30 OLP patients and ten healthy controls were collected. The expression of KGF and KGFR proteins was detected by immunohistochemistry and the expression of KGF mRNA was detected by in situ hybridization.

[The role of extracellular signal regulated kinase 1/2 in mediating osteodifferentiation of human periodontal ligament cells induced by cyclic stretch].

Objective: This study aimed to investigate the mechanism of cyclic stretch that promotesthe osteogenic differentiation of human periodontal ligament cells (hPDLCs) through the mediation of extracellular-signal-regulated kinase 1/2 (ERK1/2).

Methods: hPDLCs were isolated through the explant method and cultured in vitro. hPDLCs were mechanically stimulated by a multi-channel cell-stress-loading system for 1, 3, 6, 12, and 24 h.

The Effect of Pudilan Anti-Inflammatory Oral Liquid on the Treatment of Mild Recurrent Aphthous Ulcers.

Recurrent aphthous ulcers are the most common recurrent oral mucosal lesions characterized by recurrence and pain. The aim of this research is to evaluate the short-term curative effect of the traditional Chinese medicine "Pudilan anti-inflammatory oral liquid" on mild recurrent aphthous ulcers. A total of 234 patients were divided into a treatment group and a control group.

Clinical characteristics and analysis of familial oral lichen planus in eight Chinese families.

Oral lichen planus (OLP) is one of the most common oral mucosa diseases; however, familial OLP is uncommon. The present study reported and analyzed patients with familial OLP (n=18) in eight different Chinese families between January 1, 2012 and December 31, 2013. Parameters analyzed include gender, age at diagnosis, lesion distribution and lesion type.

[Study on the function of keratinocyte growth factor on apoptosis of oral mucosal epithelial cells].

Objective: To study the function of keratinocyte growth factor (KGF) on apoptosis of oral mucosal epithelial cells and to provide a basis for further investigation of the role of KGF in the occurrence and development of oral mucosal diseases.

Methods: Different concentrations of KGF (control group, 0 ng x mL(-1); experiment 1 group, 5 ng x mL(-1); experimental 2 group, 25 ng x mL(-1); experiment 3 group, 50 ng x mL(-1)) were added in oral mucosa epithelial cells cultured in vitro. After training for 12, 24, and 48 h, cell morphology was observed under an inverted microscope.

[The effect of interleukin-1beta and dexamethasone on keratinocyte growth factor expression level of cultured oral fibroblasts].

Objective: To detect the effects of human interleukin-1beta (IL-1beta) and Dexamethasone (DEX) on the expression level of keratinocyte growth factor (KGF) in cultured human fibroblasts of normal oral and oral lichen planus (OLP) mucosa.

Methods: Three concentration gradients of IL-1beta and DEX were added to cultured fibroblasts of human normal oral and OLP mucosa respectively. 72 hours later, the supernatant was harvested for the detection of KGF concentration with enzyme linked immunosorbent assay (ELISA).

Anticoagulant and Fibrinolytic Disorders in Patients with Behçet's Disease and Recurrent Aphthous Ulcer.

Behçet's disease (BD) is a chronic multisystemic inflammatory disorder characterized by recurrent oral and genital aphthous ulcers, uveitis and skin lesions. Recurrent aphthous ulcer (RAU) is the most prevalent oral mucosal disease in humans. The pathogenesis and thrombopoiesis of BD and RAU have not been fully clarified.

OPN promotes survival of activated T cells by up-regulating CD44 in patients with oral lichen planus.

Oral lichen planus (OLP) is a chronic inflammatory disorder of oral mucosa, which represents cell-mediated autoimmune diseases. Pathological study demonstrated that abundant T lymphocytes infiltrated the oral mucosa, in which the activated T cells that trigger apoptosis of oral epithelial cells is an important mechanism for OLP. However, to date the molecular mechanisms underlying the T lymphocytes infiltration and accumulation in OLP remain unclear.

[The expression of interleukin-10 mRNA in gingival lesion of different clinical states in patients with adult periodontitis].

Objective: To investigate the expression of interleukin-10 (IL-10) mRNA in gingival tissue of active and stable stage in patients with adult periodontitis.

Methods: 12 patients with acute abscesses of the periodontium, 12 patients after periodontal initial treatment and 6 periodontal healthy patients having extraction of impacted wisdom tooth were randomly divided into group A (active stage group), group B (stable stage group) and the control group. Biopsies of gingival tissues were collected from every subject of three groups.

[Effect of periodontal initial therapy together with Chinese herbal compound for clearing heat and detoxification on interleukin-1 beta and tumor necrosis factor-alpha in gingival crevicular fluid of patients with chronic periodontitis].

Objective: To observe the effect of periodontal initial therapy together with Chinese herbal compound for clearing heat and detoxification (Abbr. TCM) on the levels of tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 beta (IL-1 beta) in gingival crevicular fluid (GCF) of patients with chronic periodontitis (CPD).

Methods: Thirty-four teeth of 24 patients with CPD were randomly assigned to the control group (17 teeth of 11 patients) and the treated group (17 teeth of 13 patients), they were treated for 8 weeks with periodontal initial therapy, but TCM was given additionally to the treated group.

Comparative observation on the effects of Radix tripterygium hypoglaucum tablet and Tripterygium glycosides tablet in treating erosive oral lichen planus.

Objective: To compare the therapeutic effects of Radix Tripterygium hypoglaucum tablet (THT) and Tripterygium glycosides tablet (TGT) in treating erosive oral lichen planus (EOLP).

Methods: The patients were randomized into two groups, and they were treated with THT (n = 47) or TGT (n = 47), respectively. The therapeutic effects were evaluated after 3 months treatment.

[Study on the expression of IL-10 mRNA and the protein in gingival tissues of patients with chronic periodontitis].

Purpose: To investigate the cell type which express IL-10 mRNA and the protein in gingival tissues of patients with chronic periodontitis.

Methods: 12 patients with chronic periodontitis who were undergoing flap operation were randomly chosen as periodontitis group;10 patients undergoing gingivectomy were chosen as gingivitis group;6 patients undergoing extraction of impacted teeth were chosen as control group. Assays of in situ hybridization and immunohistochemistry were used to observe the expression of IL-10 mRNA and the protein in gingival tissues of each group respectively .

[Changes of circulating IFN-gamma, IL-4 in patients with chronic periodontitis before and after periodontal initial therapy].

Purpose: To investigate the effect of periodontal initial therapy on circulating blood serum interferon-gamma (IFN-gamma) and interleukin-4 (IL-4) in patients with chronic periodontitis.

Methods: 15 patients with chronic periodontitis and 15 healthy people were selected. Circulating blood serum IFN-gamma and IL-4 were measured using double antibody sandwich ELISA; Student's t test was used for comparing sulcus bleeding index (SBI), probing depth (PD), and circulating IFN-gamma, IL-4 in patients with chronic periodontitis that were assessed respectively before and 4 to 6 weeks after periodontal initial therapy.

[Biological effects of tetracycline on cultured human periodontal fibroblasts].

Objective: To explore the biological effects of tetracycline on cultured human periodontal ligament fibroblasts (HPDLFs).

Methods: Increasing concentrations of tetracycline (1, 5, 20, 100, 500, 2500 microg/ml) were added to the medium of cultured HPDLFs, respectively. After co-incubated for 2 days, cell morphology was observed under reverse microscope, meanwhile, cell proliferation activity was assayed using MTT, the total amount of protein was detected with Coumassie Bright Blue method and DNA synthesis was measured by 3H-TdR.

[Effects of minocycline on biobehavior of human periodontal ligament cells in vitro].

Objective: To evaluate the influence of minocycline on the proliferation and biosynthesis of human periodontal ligament cells (HPDLCs) in vitro.

Methods: Various concentrations of minocycline (1, 5, 20, 100, 500, 2 500 mg/L) were added to the medium of cultured HPDLCs respectively. After co-incubated for 2 days, cell morphology was observed under reverse microscope, cell proliferation activity was assayed using MTT, the total amount of protein was detected with Coumassie Bright Blue method and DNA synthesis was measured by (3)H-TdR.

[Biological effects of tetracycline and doxycycline on cultured human periodontal ligament cells].

Objective: To explore the biological effects of tetracycline and doxycycline on cultured human periodontal ligament cells(HPDLCs).

Methods: Increasing concentrations of two drugs(1,5,20,100,500,2500 microg/ml)were added to the medium of cultured HPDLCs separately. After being co-incubated for 2 days, cell morphology was observed under reverse microscope; meanwhile, cell proliferation activity was assayed using MTT, the total amount of protein was detected by Coumassie Bright Blue method and DNA synthesis was measured by 3H-TdR.

[The effect of periodontal initial therapy on circulating TNF-alpha and HbA1C in type 2 diabetes patients with periodontitis].

Objective: To investigate the effect and mechanism of periodontal initial therapy on type 2 diabetes patients with periodontitis.

Methods: 15 type 2 diabetes patients with periodontitis were selected. Their body mass index (BMI), sulcus bleeding index (SBI), probing depth (PD), circulating tumor necrosis factor-alpha (TNF-alpha) concentration, and the value of glycosylated hemoglobin (HbA1C), triglycerides (TG) and cholesterol (CHOL) were assessed respectively before and 4-6 weeks after periodontal initial therapy.

[Change of circulating TNF-alpha in patients with advanced periodontitis before and after periodontal initial therapy].

Objective: To investigate the effect of periodontal initial therapy on circulating tumor necrosis factor-alpha (TNF-alpha) in patients with periodontitis.

Methods: Patients with advanced periodontitis were selected. Sulcus bleeding index (SBI), probing depth (PD), and circulating TNF-alpha concentration were assessed respectively before and 4-6 weeks after periodontal initial therapy.

[Effects of exogenous IL-10 on IL-6 and ICAM-1 expression in inflammatory gingival tissue].

Objective: This study aimed at investigating effects of exogenous interleukine-10 (IL-10) on IL-6 and intercellular adhesion molecular (ICAM-1) expression in inflamed gingival tissue.

Methods: The expression of IL-6 and ICAM-1 was examined using immunohistochemical techniques. Inflammatory gingival tissue treated with IL-10 was taken as the experimental group and the same patient's inflammatory gingival tissue without treatment of IL-10 was included into the control group.