Objective To evaluate the effect of one-visit endodontic treatment for infected root canals with combination of nickel-titanium instruments and ultrasonic technique and warm vertical technique.Methods According to treatment,90 teeth were randomly divided into experimental and control groups.Two groups were used nickel titarlium root canal preparation.Experimental group:51 teeth for ultrasonic root canal irrigation,and warm vertical technique was employed to fill the root canal.Control group:39 teeth for rinse syringes,and warm vertical technique was employed to fill the root canal.Washing fluid was 2％ sodium hypochlorite.The root canal filling was observed after a week and one year of postoperative pain response.Results A week later,two groups of post-operative pain showed that there was significant difference in responses (x2 =15.525,P ＜ 0.05).One year later,the two groups showed no significant difference in efficacy(x2 =0.085,P ＞ 0.05).Conclusion The combination of nickel-titanium instruments and ultrasonic irrigation technique and warm vertical obturation,for the treatment of infected root canals was a method to complete the root canal filling,could reduce both the number of patients subsquent visits and the postoperative pain response,while it could improve the quality of root canal filling.

Objective:To compare the antihypertensive effects of tuina at Taichong (LR 3),Neiguan (PC 6) and Qiaogong (Extra) to screen the best tuina protocol for primary hypertension due to liver-fire flaming-up.Methods:A total of 102 patients with primary hypertension due to liver-fire flaming-up were randomly divided into a Taichong (LR 3) group,a Neiguan (PC 6) group and a Qiaogong (Extra) group according to the random number table,with 34 cases in each group.Patients in the three groups received 4-week tuina treatment with the corresponding acupoint respectively.The blood pressure was recorded by benchtop mercury sphygmomanometer before tuina,immediately after tuina treatment,30 min and 60 min after tuina treatment with the patient in a supine position in a quiet treatment room.The total effective rate was observed.Results:The systolic and diastolic blood pressures of the three groups all decreased after treatment (all P＜0.05).The decrease of systolic and diastolic blood pressure at different time points after treatment in the Qiaogong (Extra) group and the Taichong (LR 3) group were better than those in the Neiguan (PC 6) group (all P＜0.05).Qiaogong (Extra) group had the highest total effective rate though there was no statistical difference in the total effective rate among the three groups (P＞0.05).Conclusion:Treating primary hypertension due to liver-fire flaming-up with tuina at Taichong (LR 3),Neiguan (PC 6) and Qiaogong (Extra) can reduce systolic and diastolic blood pressure respectively,among which Qiaogong (Extra) has the highest total effective rate.

Animals ; Calcitonin Gene-Related Peptide ; blood ; Electric Stimulation ; Endothelin-1 ; blood ; Female ; Heart Arrest ; blood ; Male ; Rabbits ; Resuscitation ; methods

Animals ; Death, Sudden, Cardiac ; Disease Models, Animal ; Rabbits

Diagnostic Errors ; Female ; Humans ; Middle Aged ; Thyroid Nodule ; diagnostic imaging ; Ultrasonography ; Zenker Diverticulum ; diagnostic imaging

Objective To explore the expressions and.significancse of interleukin (IL)-10 and IL-18 in serum and tissues of patients with cervical intraepithelial neoplasias (CIN) and cervical cancer,and to analyze their relationships with clinical pathological characteristics and prognosis.Methods One hundred and eight patients' tissues and clinical blood samples (68 cases of CIN and 40 cases of squamous cell carcinoma) were enrolled in this study,including 25 with low-grade cervical intraepithelial neoplasias (CIN Ⅰ),43 with high-grade cervical intraepithelial neoplasias (CIN Ⅱ-Ⅲ),and 40 with invasive cervical squamous cell carcinoma (SCC);meanwhile,20 cases normal cervical tissues were enrolled.The expressions of IL-10 and IL-18 in cervical tissues and serum of the studied patients were measured by enzyme-linked immunosorbent assay and polymerase chain reaction.Meanwhile,second generation hybrid capture was used to detect human papilloma virus(HPV) DNA in cervical smears obtained from the studied patients with the different lesions.The relationships among IL-10 and IL-18 with HPV DNA and clinical prognosis were analyzed.Results The expressions of IL-10 and IL-18 in normal control serum were (212.75 ± 62.09),(187.84 ± 81.03)pg/ml respectively.The expressions of IL-10 in CIN Ⅰ,CIN Ⅱ-Ⅲ and SCC serums were (324.71 ±75.87),(397.43 ±68.56),(482.77 ± 104.05) pg/ml,with statistically significant difference (F =17.657,P =0.001).The expressions of IL-18 in CIN Ⅰ,CIN Ⅱ-Ⅲ and SCC serums were (305.53 ± 64.08),(392.74 ± 87.38),(499.86 ± 92.04) pg/ml,with statistically significant difference (F =13.309,P =0.003).The relative expressions of IL-10 in normal control,CIN Ⅰ,CIN Ⅱ-Ⅲ and SCC tissues were 0.99 ±0.01,3.24 ±0.68,7.32 ±0.99,13.24 ± 1.03,with statistically significant difference (F =21.694,P =0.000).The relative expressions of IL-18 in normal control,CIN Ⅰ,CIN Ⅱ-Ⅲ and SCC tissues were 0.98 ± 0.01,2.02 ± 0.84,7.01 ± 1.59,14.38 ± 2.10,with statistically significant difference (F =19.912,P =0.001).The expressions of IL-10 and IL-18 were positively associated with HPV infection (r =0.696,P =0.001;r =0.852,P =0.001).The median survival time of patients with high expressions of IL-10 was 9.74 months,which obviously shorter than those patients with low expressions of IL-10 (24.47 months),with statistically significant difference (x2 =21.363,P =0.001).The median survival time of patients with high expressions of IL-18 was 12.32 months,which obviously shorter than those patients with low expressions of IL-18 (22.88 months),with statistically significant difference (x2 =7.457,P =0.006).Conclusion High expressions of IL-10 and IL-18 are observed in patients with CIN and SCC,which can be used as biomarkers for predicting early cervical lesions.

Objective To assess the effectiveness of supracricoid partial laryngectomy in the treatment of laryngeal cancer. Methods This study infiuded 22 patients operated on from 1993 to 2000 using this surgical procedure. 22 were males with mean age of 63 years (ranging from 43 to 74 years). 21 were glottic cancers (3 T1aNoMo, 4 T1bNoMo, 11 T2NoMo, 3 T3NoMo) and 1 supraglottic cancer (T2N1Mo) according to the 1997 UICC system. Supracrieoid partial laryngectomy was performed, with the epiglottis preserved and reconstructed with cricohyoidoepiglottopexy (CHEP). Results The overall 3-year and S-year survival rates were 88.24％ and 70％, respectively. All patients were decannulated. The average time for decannulation was 25 days (ranging from 14 to 60 days). Speech was good in all cases. Conclusion CHEP not only excises the neoplasms completely and safely but also preserves the laryngeal physiologic function well.

According to the requirements of the ‘three guidance’ talent-cultivation model pro-posed by our university, humanistic spirit was permeated from multi angels during the process of phys-iology. Students'occupation quality was cultivated; physiology knowledge and clinical practice was combined for students; early contacting with clinical knowledge was conducted and teacher-student role reversal method was applied to train students' communication skills. Teaching practice showed that the reformed teaching model not only can ensure the quality of teaching but also can improve the comprehensive quality of students.

Objective:To study the function of transcription factor 4 (TCF4) and to prepare TCF4 polyclonal antibody.Methods:pET-41/TCF4 was transformed into E.coli BL21(DE3) and induced by IPTG.The purified GST-TCF4 fusion protein was applied to immunize rabbit to produce antiserum. The specificity of the affinity of purified anti-TCF4 antibody was examined by Western blotting analysis of the eukaryotic expressed products of TCF4. Dig-labeled probe and antibody against TCF4 were used to examine the expression of TCF4 in Saos-2 cells under mechanical stretch. Results:Western blotting showed that the antibody could bind to TCF4 specifically. The expression of TCF4 mRNA and protein were significantly increased in Saos-2 cells under mechanical stretch. Conclusion: TCF4 antibody has been prepared successfully.

Objective To assess the effects of air pollution on health of traffic policemen. Methods Sampling and the analysis of air pollution were conducted according to China national standards. 214 traffic policemen were investigated. Of them 149 were working on the streets and 65 were working in the office (taken as the control). Individual respiratory symptoms occupational histories and medical records were obtained using standardized questionnaire. Results The prevalence rates of cough and expectoration excessive phlegm eyes and throat unwell fatigue in policemen working on the streets were significantly higher than that in policemen working in the office and were correlated to the level of air pollution(P