AIM:To observe the changes in plasma rennin activity(PRA)and angiotensin Ⅱ(AngⅡ)level and the cytoskeletons in dorsal hippocampus(DH)in male and female stressed rats.METHODS:The adult Sprague-Dawley male and femal rats were stressed for 6 h per day.Three days later,the levels of PRA and AngⅡin plasma were determined by radioimmunoassay,and the expression of nestin and NF200 in dentate gyrus(DG)and CA3 regions were observed with immunohistochemical staining.RESULTS:①The levels of PRA in plasma of male or female rats were decreased in stressed rats compared with control groups(P

Consensus Development Conferences as Topic ; Endoscopy ; Europe ; Humans ; Nose Neoplasms ; diagnosis ; surgery ; Skull Base Neoplasms ; diagnosis ; surgery

Objective To observe the clinical effect of HuaYu TongFu KaiQiaoFang on serum homocysteine (Hcy)in patients with acute cerebral infarction. Methods Sixty cases of acute cerebral infarction admitted into the comprehensive ward and intensive care unit(ICU)of the First Affiliated Hospital of Guiyang College of Traditional Chinese Medicine from December 2010 to January 2012 were randomly divided into two groups,each group including 30 cases. The control group was given conventional treatment,and based on the conventional therapy,the treatment group was additionally given HuaYu TongFu KaiQiaoFang(a traditional Chinese medicine decoction including the following ingredients:Safflower 10 g,Chishao 10 g,Chuanxiong 10 g,Notoginseng 10 g,Angelica Sinensis 10 g, Shichangpu 10 g,Polygalae 10 g,Glauber's salt 5 g,Rhubarb 6 g),one dose a day by oral or nasal administration for consecutive 14 days. Before and after treatment in the two groups,the serum Hcy level was detected by enzyme-linked immunosorbent assay(ELISA),and the clinical efficacy was assessed by Pearson or Spearman correlation analysis to observe the correlation between neurological deficit score(NDS)and Hcy levels. Results Before treatment, the difference of serum Hcy(μmol/L)and NDS levels between the two groups was not statistically significant(both P>0.05),while after treatment,the levels in the two groups were significantly decreased in comparison with those before treatment(P<0.05 or P<0.01),and the degree of descent in treatment group was more obvious compared with that in control group(Hcy:7.78±2.51 vs. 10.18±2.41,NDS:10.60±2.25 vs. 14.60±3.70,both P<0.05). After treatment,the total effective rate in the treatment group was significantly higher than that in the control group (90.0%vs. 76.7%,P<0.05). Before treatment,the NDS was positively correlated with Hcy(r=0.675,P<0.05). Conclusion HuaYu TongFu KaiQiaoFang can significantly reduce the level of serum Hcy and improve the nerve function,thus its clinical effect for treatment of acute cerebral infarction is remarkable.

OBJECTIVE:To observe the effects of Sodium chloride injection and Glycerine enema on the relief of postoperative defecation pain,edema around wound and incision in patients with complex anal fistula. METHODS:100 patients with complex anal fistula were selected and divided into group A(33 cases),B(33 cases)and C(34 cases)according to random number table. Group A was given Sodium chloride injection 300-500 ml,water bath heated to 35-37℃,into the rectum via enema bag before defecation,and defecated after controlling defecation for 5-10 min. Group B was given Glycerine enema 110 ml into the rectum,and defecated after controlling defecation for 5-10 min. Group C could defecated directly when they felt obvious defecation desire. VAS score of initial defe-cation,defecation frequence and time within 24 h after initial defecation,edema around wound and incision within a week after initial defecation were observed in 3 groups as well as the occurrence of ADR. RESULTS:VAS score of initial defecation,defecation fre-quence and time,edema around wound and incision in group A and B were significantly lower/shorter than in group C,with statistical significance(P<0.05). Above indexes of group B were slightly lower than those of group A,without statistical significance(P>0.05). No obvious ADR was found in group A and B during treatment. CONCLUSIONS:Both Sodium chloride injection and Glycerine enema can relieve postoperative defecation pain in patients with complex anal fistula,and reduce edema around wound and incision with good safety. The two drugs should be selected according to patient’s condition.

Objective To analyze the clinical and pathological characteristics of breast carcinoma in elderly female patients and to offer the standard clinical diagnosis and treatment for breast carcinoma.Methods A total of 178 patients admitted to Breast Center of Beijing Hospital from January to December 2011 were enrolled in this retrospective study.Patients were divided into non-elderly group and elderly group.Clinical features,imaging diagnosis,operation patterns and pathological diagnosis were recorded.The data were analyzed by using SAS 9.1 software.Results The patients diagnosed as breast carcinomas in BI-RAD 4-5 categories by mammography were much more in the elderly group than in the non-elderly group (82.1％ vs.63.0％,P＜0.05).The diagnostic accuracy rates of ultrasonography and mammography in the elderly group were comparable(P＞ 0.05),while in the non-elderly group,the diagnostic accuracy rate of ultrasonography was higher than that of mammography (P＜0.05).The incidence of concurrent diseases was higher in the elderly group than in the non-elderly group (P＜0.05).The patients undergoing breast resection operation were much more in the elderly group than in the non-elderly group (14 cases vs.3 cases,P＜0.05).The pathological diagnosis analysis showed that there were no significant differences in the number of ER-positive cells and PR-positive cells,tumor size,histological grade,pathological stage between the two groups (all P＞0.05).The incidence of lymph node metastasis was lower in the elderly group than in the non-elderly group (P＜0.05).The percentage of Ki-67 positive cells was lower in the elderly group than in the non-elderly group (P＜0.05).The percentage of CerbB-2 strongly positive (+++) cells was lower in the elderly group than in the non-elderly group (5.1 ％ vs.24％,P＜0.05).The invasive ductal carcinoma was the major histological type of breast cancer in both two groups,but there were more mixed type and other type carcinomas in the elderly group than in the non-elderly group (P＜0.05).Conclusions Ultrasonograpy and mammography have better sensitivity for breast cancer in elderly female patients.The surgical protocols are often influenced because more concurrent diseases have occurred in the elderly.There are significant differences in some prognostic factors between the two groups,which may imply a better prognosis in elderly patients.

Objective To explore the therapeutic effect and possible mechanisms of Xuebijing injection for treatment of acute pulmonary thromboembolism(APE)in rabbits. Methods Twenty-four New Zealand rabbits with big ears were randomly divided into control group,model group and Xuebijing group(each n=8). The model of APE was performed by re-infusing of autologous blood clots. After the model was established,in the rabbits of the Xuebijing group,Xuebijing injection 1 mL/kg was injected into the ear marginal vein,twice daily for consecutive 7 days. In the model and control groups,the same amount of normal saline was given via the same route. The changes in plasma levels of B-type natriuretic peptide(BNP)were detected by enzyme-linked immunosorbent assay(ELISA) at the time points of 8 hours and 1,3,5,7 days,and after 7 days the lungs of the rabbits were removed for the lung histopathological examination. Results The BNP levels of the model group and Xuebijing group were significantly higher compared with the level of control group at 8 hours after embolization,the model group being the most significant(all P<0.05). On day 3,the BNP levels of the model group and Xuebijing group reached their peaks,and then gradually decreased,but the level of model group was significantly higher than that of Xuebijing group(ng/L:581.1±144.6 vs. 251.5±22.5,P<0.05). On day 7,the BNP level of Xuebijing group fell to the level of the control group(ng/L:78.5±9.4 vs. 50.9±11.5),the level of the model group also decreased,but it was still much higher than that of the Xuebijing group(ng/L:214.1±47.6 vs. 78.5±9.4,P<0.05). Histopathological examination showed Xuebijing could significantly reduce the infarct size with mild inflammatory cell infiltration,but the infarct size of the model group was obviously bigger than that of the Xuebijing group and accompanied by relatively more inflammatory cell infiltration. Conclusion Xuebijing injection can significantly reduce the plasma BNP level of the rabbits with pulmonary embolism,and in the mean time ameliorate the degree of inflammatory infiltration in the lung tissue and infarct.

Objective To compare the values of a screening methods by OC-Hemodia and chemical fecal occult blood test (COB) for colorectal cancer in elderly people. Methods The screening programme targeted colorectal cancer in old people was conducted on 1 100 participants aged 60-92 years (mean was 81.3 years). All subjects received OC-Hemodia and COB examinations. Positive subjects were examined by colonoscopy and/or barium enema. Out of 1 100 subjects 1 046 were followed up in the next five years. Results Among 1 100 subjects, 231 subjects (21.0%) were positive by OC-Hemodia test and 159 subjects (14.5%) were positive by COB. There was a significant difference in positive rate between OC-Hemodia test and COB (P

Objective To provide reference for anti-infection drugs in Zunyi area by analyzing the etiological characteristics of children with severe pneumonia.Methods The sputum, throat swabs and serum of children with severe pneumonia in pediatric intensive care unit of our hospital from January 2014 to December 2015 were collected in this study.The pathogen species which caused severe pneumonia were detected and identified by the method of pathogen culture,and typical pathogens were detected by RT-PCR and indirect immunofluorescence.Results A total of 337 children with severe pneumonia were included,the pathogen positive rate was 86.65%(292/337).The rate of viral infection(37.32%)was the highest,followed by bacterial infection accounting for 28.42%,then the mixed infection accounting for 27.74%,and the mycoplasma pneumoniae infection accounting for 6.50%.The respiratory syncytial virus type B accounting for 28.44% was the most common in viral infection,and there were significant differences in age distribution(P<0.05),the children under 3-years-old,especially the infants under 1-year-old had the highest susceptibility.Viral infection had certain seasonality,compared with spring and winter,autumn and winter(November to April) had higher viral detection rate and the difference was statistically significant(x2=29.28,P=0.001).The escherichia coli was the most common in bacterial infection,accounting for 21.69%.Klebsiella pneumoniae,Escherichia coli were more common in neonates and infants under 1-year-old,Haemophilus influenzae occured in 1~3 years old children,Streptococcus pneumoniae infection could occur in any age.Conclusion Viral infection is the most common pathogen in children with severe pneumonia in Zunyi area followed by bacterial infection,which is more common in children under 1-year-old,and with the high incidence in autumn and winter.Bacterial infection is more common in children over 3 years of age.Bacterial and viral mixed infection is common in children under 3 years of age,especially in children under 1-year-old.

OBJECTIVETo investigate the associated factors that influence the removal of intraradicular resinifying material.

METHODSOne hundred and ninety-seven root canals were treated with resinifying therapy, then the canals were negotiated with sonic, ultrasonic and hand instrument. Those failed to be negotiated were splinted longitudinally and observed with ZOOM-630E stereomicroscope.

RESULTSSonic and ultrasonic instrument negotiated more canals, especially those with jelly-like resinifying material (76.0% approximately 84.0%) and of smaller curvature (90.0% approximately 100.0%) or larger initial apical file (IAF) size (93.8% approximately 100.0%). Those with hard resinifying material and of bigger curvature or smaller IAF size were hard to be negotiated no matter which kind of instrument was used (0 approximately 20%).

CONCLUSIONSVibratory instrument can effectively removal intraradicular resinifying material.

Dental Pulp Cavity ; Dental Pulp Diseases ; therapy ; Humans ; Retreatment ; Root Canal Filling Materials ; chemistry ; Root Canal Therapy ; instrumentation ; methods

The process of U(VI) biosorption by freshwater algae Chlorella pyrenoidosa and its absorption mechanism, absorption thermodynamics and absorption kinetics were investigated in this paper. The effects of pH, contact time, initial U(VI) concentration and temperature on biosorption were studied respectively. Research result showed that the absorption effect of U(VI) by Chlorella pyrenoidosa was affected by pH value of solution to a great extent, the absorption reached its balance within 5 min with optimal pH value 6 and max absorption quantity 2.7 mg/g. On the other hand, the absorption quantity of U(VI) by Chlorella pyrenoidosa was positively correlated with the initial concentration of U(VI); and the absorption quantity did not fluctuate remarkably when temperature was varied at the range of 20℃ to 30℃. Research result also showed that the process of U(VI) absorption was congruent with the second order kinetic model, and the correlation coefficient was high reaching to 0.99. It was suggested that the U(VI) biosorption by Chlorella pyrenoidosa was a complicated process consisting of many simultaneous reactions and could be described by Languir model quite well.