The contents of tea polyphenolic compounds, ascorbic acid, flavones and tea catechins in 17 kinds of Chinese tea were reported.In multivariable analysis, both factor analysis and regression technique were used to assess the realationship between blocking rate (transferred into In odd, dependent variable) and tea active constituents (independent variable) . It has been shown that the correlation coefficient between each pair of independent variables is comparatively high. One main factor could explain 80% of variation among independent variables, of which the factor loadings were 0.951 (tea catechins), 0.88 (tea polyphenolic compounds), 0.842 (ascorbic acid). It has been found that tea polyphenolic compounds had a higher contribution to the blocking rate. The blocking rates on NPRO formation were 88% for 2 ml green tea extract, 74% for tea polyphenolic compounds extracted from 2 ml green tea, and 75% for 20 mg of tea catechins, the same amount as contained in 2ml of tea extract. The blocking rate -was 28% for the same amount of ascorbic acid contained in 2 ml of tea extract, and therefore ascorbic acid in tea didn't play an important role in the blocking of NPRO formation. Tea polyphenolic compounds and tea catechin affected NPRO formation in the same manner as tea extract, i.e. inhibtion in higher level and promotion in lower level. Thus, it might be concluded that blocking effect on NPRO formation was mainly due to tea polyphenolic compounds especially tea catechin in tea.

Objective:To explore the therapeutic effect and safety of oral ibuprofen (INN)on patent ductus arterio-sus (PDA)in neonates.Methods:A total of 160 neonates,who hospitalized in our hospital and were diagnosed as PDA by color echocardiography from Feb 2011 to Dec 2013,were enrolled.According to number table method, they were randomly and equally divided into high dose group (received INN 10mg/kg on the first day,then 5mg/kg on the second and third day)and low dose group (received INN 5mg/kg for 3d).PDA closure was observed,com-pared and analyzed between two groups after INN therapy.Results:After INN therapy,PDA closed in 57 cases (71.3%)in high dose group,it was significantly higher than that of low dose group (48.8%,39/80),P <0.01;there were no significant difference in incidence rates of adverse reactions between two groups (P >0.05 all).Con-clusion:High-dose ibuprofen possesses better therapeutic effect on patent ductus arteriosus in neonates;its adverse reactions are few;which can avoid postoperative pain in partial children.

Liver cancer is one of the most common malignant tumors in the world.The mortality of patients with liver cancer remains high e-ven with increasing progress in therapies.Early diagnosis is helpful for prolonging the survival of patients,so new biomarkers need to be ex-plored for timely diagnosis and treatment of liver cancer.The present research focuses on tumor-associated antigens (TAAs)and their cor-responding autoantibodies as serological biomarkers of liver cancer.The production of autoantibodies and the TAAs and anti-TAAs currently found in the liver cancer tissue are summarized.In addition,it is pointed out that these newly found autoantibodies have relatively high sen-sitivity and specificity for the early diagnosis of liver cancer.

The occurrence and outcome of cancer is related to the involved gene;Detecting the expres-sion of gene in body by the real-time PCR technology can diagnose and evaluate the prognosis of patients early. Through analyzing the abnormal genes and molecular,designing and studying the targeted drugs can achieve the therapeutic effect of steady,accurate,relentless,at the same time to reduce side effects and to improve the quality of life.

Urinary tract infections (UTIs) are common, recurrent infections that can range from mild to life-threatening. High recurrence rates of UTIs and increasing antimicrobial resistance may place a greater financial burden on the patients with UTIs. Thus, UTIs is becoming an increasingly serious public health problem. This review summarized how pathogens adhered to and colonized host cells, the important role of bacterial pili in the development of UTIs and the pathogenic mechanisms of different pathogens in UTIs and catheter associated urinary tract infections (CAUTIs). Elucidating the molecular mechanisms of host-pathogen interactions and the pathophysiological consequences of these interactions in UTIs is conducive to further understand the pathogenesis of UTIs.

Objective To extract the flavomids from orange peel and determine the content of total flavmoids in orange peel. Methods The total flavonoids in orange peel were determined by using hesperidine as standard sample and edible alcohol as extraction solvent. Results The total content of flavonids is 19.44 g/kg. Conclusion The method is simple and reproducible. It provides a scientific basis for using orange peel.

Objective To determine the colorific value of Matrimory Vine in Qinhai. Method Calorific value of Qinghai matrimony-vine was determined by the method of oxygen bomb type-calorimeter instrument. Results Combustion heat of Qinghai matrimony-vine was 18.36 kJ/g. Conclusion The method is easy and reliable, and its principle is accurate. The data may provide a scientific basis for people’s diet structure and medical use.

OBJECTIVE:To establish a good method for determining the dissolution rates of diclofenac sodium suppository METHODS:The dissolution method Ⅰ and Ⅱ of ChP(2000) were compared,the first derivative spectrophotometry was used and the parameters(T50,Td,m) obtained from these samples were brought for correlation analysis RESULTS:The dissolution rate of diclofenac sodium suppository from the dissolution method Ⅰ and Ⅱ were remarkably different,and the dissolution method Ⅱ was better than Ⅰ CONCLUSION:The method established by this study is suitable for the quality control of diclofenac sodium suppository,and the percentage of dissolution of diclofenac sodium suppository in 45min more than 80% is the standard of quality control

The application of simulated therapy in surgical clinical teaching can stimulate the students' learning enthusiasm and improve their unified qualities in all-rounded way,improve the teacher's teaching level to acquire satisfactory results.

Objective To compare the effects of typical and atypical antipsychotics treatment on P50 sensory ga-ting in first-episode schizophrenics.Methods Using conditioning-testing stimulus paradigm and stimulus train paradigm to record the P50 auditory evoked potential in 36 normal controls and in 61 first-episode schizophrenics before and after treat-ment.Patients were categorized into two groups:the typical antipsychotic treatment group(typical group)and the atypical antipsychotic treatment group(atypical group).Results Before treatment,both of the typical and atypical groups had low-er levels of S2-P50 amplitude,P50 suppression in conditioning-testing stimulus paradigm and P50 amplitude as well as P50 suppression evoked by high frequency stimuli in stimulus train paradigm in comparison with controls(P<0.05).After treatment,the typical antipsychotic treatment significantly improved the levels of P50 suppression in the stimulus train para-digm but not the levels of S2-P50 amplitude,P50 suppression in the conditioning-testing stimulus paradigm(P<0.05)whereas the atypical antipsychotic treatment improve the levels of P50 amplitude,P50 suppression in both stimulus train paradigm and the conditioning-testing stimulus paradigm(P<0.05). Conclusions The typical antipsychotic treatment can ameliorate the P50 suppression in stimulus train paradigm,but not in the conditioning-testing stimulus paradigm,whereas atypical antipsychotic treatment can ameliorate P50 suppression in both paradigms.