AIM:To observe the expression of epidermal growth factor receptors(EGFR) of gingival tissue in periodontitis. METHODS: The expression of EGFR was determined by using immunohistochemical techniques in gingival tissue of 15 healthy individual, 32 cases with adult periodontitis (AP) and 12 cases with juvenile periodontitis (JP). RESULTS: Expression of EGFR was mainly located on basal cell membranes in healthy gingiva, and the staining intensity was faint. In AP cases, expression of high level EGFR was mostly observed on the membranes of epithelial cell in the periodontal endopocket or junctional epithelium, intensity of staining appeared to decrease gradually with the differentiation of keratinocytes, and the horny cell layer was not stained by the antibody. In JP cases, strong positive staining was present on membrane of epithelial cells in the germinative layer of gingival tissue. There was an apparent difference between healthy gingiva and AP or JP (P＜ 0.01 ), or AP and JP (P＜ 0.01). CONCLUSION: The distribution and expression of EGFR in gingival epithelium of periodontitis showed obvious differ- euce. The data indicated that EGFR may affect apical migration of junctional epithelium, and may play a role in development of AP and JP.

Lu Dangshen, a traditional authentic medicinal material of Codonopsis Radix is mainly produced in Shangdang (Changzhi) area of Shanxi Province. Baitiao Dangshen is mainly produced in Gansu Province. Codonopsis Radix contains many kinds of components such as phenylpropanoids, polyalkynes, alkaloids, terpenes, fatty acids, flavonoids, and so on. At present, the effect of producing areas on its chemical compositions has not been systematically studied. This study analyzed the differences of metabolites among Codonopsis pilosula from different producing areas by UPLC-HRMS. PCA, OPLS-DA coupled with Thermo mzcloud online and local databases were used to compare the overall differences of metabolites among Codonopsis pilosula from different producing areas, and the chemical constituents were identified to further screen and find out the different metabolites and analyze the metabolic pathways by information retrieval in HMDB, PubChem, Chemspider and KEGG databases. The results showed that 72 differential metabolites were identified in this study. There were 15 kinds of up-regulated and 57 kinds of down-regulated metabolites of Lu Dangshen compared with Baitiao Dangshen. The top 30 metabolic pathways were analyzed by KEGG enrichment, and the most important metabolic pathways were phenylpropanoid biosynthesis, which was demonstrated that phenylpropanoid biosynthesis pathway and related intermediate metabolites could be used as the characteristics of distinguishing Lu Dangshen from different habitats of Codonopsis pilosula. The present study provided a basis for analyzing the influence of producing areas on the chemical components of Codonopsis pilosula and reasonably evaluating the quality of Codonopsis Radix, and also provided a new idea for expounding the authenticity of Lu Dangshen.

Objective To investigate the effects of different modes of one-lung ventilation (OLV) on hemodynamies in the patients undergoing thoracic operation.Methods Forty-five adult patients undergoing thoracic surgery,were randomly allocated into 3 groups based on the modes of OLV used ( n =15 each):intermittent positive pressure ventilation ( IPPV,VT 6-8 ml/kg,RR 10-14 bpm,I:E 1:2) group,IPPV + positive end-expiratory pressure (PEEP) group and IPPV + continuous positive airway pressure (CPAP) group.Double-lumen tube was inserted.Conrrect positioning was verified by fiberoptic bronchoscopy.The patients were mechanically ventilated.PETCO2 was maintained at 35-45 mm Hg.In group IPPV + PEEP,OLV was performed for 30 min with PEEP of 5 cm H2O and then for another 30 min with PEEP of 10 cm H2O.In group IPPV + CPAP,OLV was performed with IPPV in the lung on the ventilated side and with CPAP of 5 cm H2O in the lung on the operated side (for 1 h).MAP,HR,cardiac output (CO),cardiac index ( CI),stroke volume (SV),and stnoke volume index (SVI) were recorded before induction of anesthesia,at 10 min after intubation,at 30 min of two-lung ventilation,at 30 min and 1 h of OLV,and at the end of operation ( T1-6 ).Arterial blood samples were taken at T1,2,4-6 for blood gas analysis.The levels of blood glucose and lactate were measured.Oxygen delivery ( DO2 ) and DO2 index ( DO2I) were calculated.Results Compared with IPPV group,SV,SVI,CO,CI,DO2 and DO2I were significantly decreased at T4,5 ( P ＜ 0.05),and no significant change was found in the levels of blood glucose and lactate in group IPPV + PEEP,and no significant change was found in the parameters mentioned above in group IPPV + CPAP ( P ＞ 0.05).Compared with IPPV + PEEP group,SV,SVI,CO,CI,DO2 and DO2I were significantly increased at T4,5 ( P ＜ 0.05),and no significant change was found in the levels of blood glucose and lactate in group IPPV + CPAP ( P ＞ 0.05).Conclusion It exerts no influence on hemodynamics using OLV with IPPV in the lung on the ventilated side and with CPAP of 5 cm H2O in the lung on the operated side,however,OLV with IPPV + PEEP can result in hemodynamic fluctuation,but the degree of fluctuation is lesser and DO2 can be maintained in the patients undergoing thoracic operation.

Objective:To explore the factors related to juvenile depression with self-mutilate behavior and suicide idea.Methods:75 cases of juvenile with depressive disorder were presented by the investigatin scale (self-made),SCL-90,coping style questionnaire,ASLEC,EMBU,CASQ.Results:Juvenile depression with self-mutilate behavior and suicide idea had gender difference,more juveniles had suicide idea with well-educated mother,juveniles with self-mutilate behavior had more self-rating psychiatric symptoms.self-mutilate behavior and suicide idea were related with negative incidents,parental rearing patterns,coping style and attributional style. Conclusion:Juvenile depression with self-mutilate behavior were influenced by more factors.

AlM: To demonstrate the effect of comprehensive treatments for meibomian gland dysfunctional dry eye.
METHODS:Totally, 86 cases (172 eyes) in our hospital, who suffered from meibomian gland dysfunctional dry eye, were measured by BUT, CFS, the machine of infrared meibomian gland function and testing meibomian gland after extrusion. The scores of meibomian gland function missing and secretions were observed, which as a diagnosis, and assessed the effectiveness of treatment, after took comprehensive treatments in different stages ( comprehensive treatments including cleaning, hot covering, massaging, TobraDex, Pranoprofen and Lubricant, etc. ) .
RESULTS:All patients were treated and observed for 3wk, in which 46 cases (92 eyes) of cured, 29 cases (58 eyes) effective, 11 cases (22 eyes) ineffective, the total effective rate was 87. 2%. After 6wk, 68 cases (136 eyes) of cured, 13 cases (26 eyes) effective, 5 cases (10 eyes) ineffective, the total effective rate was 94. 2%, not appeared adverse ocular and systemic reactions in the process of treatment.
CONCLUSlON: Taken comprehensive treatments for meibomian gland dysfunctional dry eye could effectively shorten the course of the disease, quickly remove meibomian gland tube obstruction, restore the meibomian gland secretion and stable the lipid layer, and could reduce the discomfort of patients with dry eye positively and effectively.

Objective To define the assessment dimensions of community-based elderly care service.Methods Firstly 11 assessment dimensions of elderly care service needs were teased out through literature review and group discussion, these were illness, self-care ability, vision, risk of falls, willingness/information self-expression ability, the comprehension in others' willingness/information, depression, anxiety, family care ability, self-desires for old-age support, family-desires for old-age support.Then 37 experts were invited to reconfirm and empower theose assessment dimensions with two rounds of Delphi method.Results Results showed that the enthusiasm and authority degree of experts were favorable in two rounds, and the results from the second round showed strong opinion coordination.Finally, 12 assessment dimensions were confirmed, in which financial situation of the aged added and used for reference.After weight calculation, illness was weighted the highest (0.11), while vision and the degree of anxiety were weighted lowest in 11 dimensions (0.07).Conclusion The reliability of the assessment dimensions of the aged service needs is high.This study had positive significance on the solution of the dilemma in elderly care at the present stage.

ObjectiveTo establish a method for content determination of total iridoid compounds and baldrinal and 11-ethoxyviburtinal from Valerianae Jatamansi Rhizoma et Radix; To determine the contents of total iridoid compounds and baldrinal and 11-ethoxyviburtinal in Valerianae Jatamansi Rhizoma et Radix from three medicinal origins.Methods UV spectrophotometry was applied, 11-ethoxyviburtinal (cyclopentane-pyran-7-formaldehyde, 4-ethoxy methyl) was set as the reference substance, and the content of total iridoid compounds was determined at 288 nm. HPLC method was used to simultaneously determine the contents of baldrinal and 11-ethoxyviburtinal. The HPLC analysis was performed on a Phenomenex Luna C18 column (250 mm×4.6 mm, 5μm). The mobile phase was composed of acetonitrile-water in gradient elution at a flow rate of 0.95 mL/min. The detection wavelength was 288 nm and the column temperature was 30℃.Results The total iridoid compounds, baldrinal and 11-ethoxyviburtinal were in good linearity within the ranges of 2.088–14.616μg/μL, 74.88–224.64μg, and 41.6–249.6μg, respectively. This method was precise, and with good repeatability, stability and recovery rate.Conclusion The method is accurate, simple, rapid, which can be used for the quality control of Valerianae Jatamansi Rhizoma et Radix.

PURPOSE: The aim of this study is to evaluate the incidence of de novo malignancy after liver transplantation (LT) and compare with those among the general Chinese population. METHODS: A total of 466 patients who had a minimum follow-up time of 6 months were enrolled in the study. All data of medical records and follow up were retrospectively reviewed. RESULTS: The incidence rate of de novo malignancy was 3.0% (14 in 466 patients). The median elapsed time from transplant to the diagnosis of de novo malignancy was 42 months (range, 6 to 106 months). The cumulative risk for development of de novo malignancy was 1.6%, 2.7%, and 8.2% at 3, 5 and 10 years after LT, respectively. The patients were all male. The types of de novo tumors included digestive system tumor (8 in 14), lung cancer (2 in 14), urologic neoplasm (2 in 14), and hematologic malignant tumor (2 in 14). Over a mean follow-up of 24 months after diagnosis of de novo malignancy, 7 patients (50.0%) died; the overall 5-year patient survival rate was 54.5%. The relative risk of malignancy following LT was 9.5 folds higher than the general Chinese population. CONCLUSION: The relative risk of malignancy following LT was much higher than the general Chinese population. Digestive system tumor is the most common type of de novo malignancy after LT in China.
Asian Continental Ancestry Group ; China ; Diagnosis ; Digestive System ; Follow-Up Studies ; Humans ; Incidence ; Liver Transplantation* ; Lung Neoplasms ; Male ; Medical Records ; Retrospective Studies ; Survival Rate ; Transplantation ; Urologic Neoplasms

OBJECTIVETo investigate the influence of the restoration methods with different post-and-core systems and root rehabilitation on the fracture resistance property of mandibular premolars with flared root canals.

METHODSThirty-six human mandibular premolars were divided randomly into four groups (n = 9). Three experimental groups with flared root canals were restored with prefabricated glass fiber posts and composite resin cores (group A), prefabricated titanium metal posts and composite resin cores (group B) and cast post-and-cores in combination with root rehabilitation using composite resin(group C), respectively. The control group with normal root canals was restored with cast post-and-cores (group D). The four groups were restored with metal crowns. A compressive load was applied at a 30 degrees angle to the long axis of the tooth until fracture, at a crosshead speed of 1 mm x min(-1). The fracture was categorized into repairable mode and unrepairable mode. The data was statistically analyzed with ANOVA and Fisher's exact test.

RESULTSThe mean failure of the four groups were listed as the followings: Group A (1.39 +/- 0.56) kN, group B (1.17 +/- 0.40) kN, group C (1.21 +/- 0.30) kN, group D (1.31 +/- 0.56) kN. There were no significant differences among the groups (P > 0.05). The number of unrepairable fracture in group A, B, C, D were 6, 8, 9, 9, respectively. No significant differences were found among the groups(P > 0.05).

CONCLUSIONDifferent post-and-core systems have no influences on the fracture resistance property of mandibular premolars with flared root canals. Composite resin rehabilitation is an effective method to restore flared canal roots.

Bicuspid ; Composite Resins ; Dental Pulp Cavity ; Dental Restoration Failure ; Dental Stress Analysis ; Glass ; Humans ; Post and Core Technique ; Tooth Fractures ; Tooth Root ; Tooth, Nonvital

OBJECTIVETo determine the current radiographic practices of root canal treatment (RCT) undertaken by endodontists, general dentist practitioners (GDPs) and interns, and to analyze the relationship between the usage of periapical films and the quality of RCT.

METHODSThe patients who had received RCT treatment in West China College of Stomatology were investigated at random and were divided into three groups: Endodontists treating group, GDPs treating group and interns treating group according treating physician. The usage status of periapical film were investigated by the well designed questionnaires. The obturation quality of postoperative films were evaluated. Chi-square analysis was used to compare usage rates of periapical films of three groups. Mann-Whitney test was used to determine the relationship between the usage of periapical films and the quality of RCT.

RESULTS571 teeth of 412 patients were investigated. In endodontists treating group, GDPs treating group and interns treating group, the usage rates of preoperative films were 95.3%, 89.5% and 92.1% respectively. The usage rates of working length films were 5.2%, 1.1% and 5.8% respectively. The usage of master point films was 94.8%, 72.1% and 97.4% respectively. The usage of postoperative films was 97.9%, 76.3% and 95.3% respectively. There were statistically significant differences among the working length films, master point films and postoperative films of three groups (P<0.05). The periapical films of adequate quality RCT and inadequate quality RCT were 3.14+/-0.639 and 2.84+/-0.736 respectively. There was statistically significant difference between periapical films of adequate quality RCT and inadequate quality RCT (P<0.05).

CONCLUSIONRadiographic practices of endodontists and interns are more standardized than GDPs. Quality RCT is related to radiographic practices. Standard radiographic practices would be benefit to RCT.

Dental Pulp Cavity ; Humans ; Root Canal Therapy