OBJECTIVE　To develop an assay for the determination of berberine hydrochloride in berberine hydrochloride tablets,and to compare the results measured by colormetric method with the assay described in Chinese Pharmacopoeia 1995 for assessing the correlation of the two methods.METHODS　Potassium dichromate colormetric method was selected to determine the content, and the 0.2 mg*mL-1Potassium dichromate was used as the reference solution. The absorbency was measured at 421 nm.RESULTS　The calibration curve for berberine hydrochloride was linear within the concentration range of 4.0～28.0 μg*mL-1(r=0.9999).The average recovery was 100.05%(n=5),and the RSD was 0.43%.The analytical results for berberine hydrochloride between the two methods was found to be correlated.CONCLUSION　The method was proved to be simple, precise and reproduciable. It can be used for the quantitative determination of berberine hydrochloride. It is especially practicable for rapid analysis in production.

Objective To investigate the effects of Qili-Qiangxin capsule on cardiac and pulmonary functions in heart failure patients with chronic pulmonary heart disease. Methods A total of 64 heart failure patients with chronic pulmonary heart disease were divided into two groups with the method of random sampling: a treatment group (33 patients) and a control group (31 patients). The patients in the control group received conventional treatment, those in the control group received Qili-Qiangxin capsule on this basis the treatment group for 7 days. The changes of the cardiac and pulmonary functions, and plasma N-terminal pro B-type natriuretic peptide (NT-proBNP) were compared between two groups. Results The total effective rate in the treatment group was significantly higher than that of the control group (90.90% vs. 77.42%; χ2=3.908, P<0.05). There were significant difference between two groups in left ventricular ejection fraction (50.73% ± 7.23%vs. 45.22%± 6.36%;t=3.229, P=0.002), stroke volume (63.64 ± 8.38 ml vs. 56.73 ± 8.15 ml;t=3.341, P=0.001), right ventricular end-diastolic diameter (48.39 ±5.56 mm vs. 52.61 ± 6.95 mm; t=2.690, P=0.009), mean pulmonary arterial pressure (21.73 ± 5.78 mmHg vs. 27.26 ± 6.16 mmHg; t=3.705, P=0.001), plasma NT-proBNP level (535.73 ± 175.78 pg/ml vs. 831.26 ± 228.26 pg/ml; t=5.824, P=0.000), forced expiratory volume in first second (60.32% ± 5.56% vs. 48.61% ± 4.67%; t=9.093, P=0.000), percentage of forced expiratory volume in first second to forced vital capacity (66.73%± 5.78%vs. 58.26%± 5.34%;t=6.078, P=0.000), arterial oxygen saturation (96.73%± 5.78%vs. 93.26%± 5.26%;t=2.507, P=0.015), arterial partial pressure of oxygen (82.73 ± 16.78 mmHg vs. 67.26 ± 13.26 mmHg;t=4.075, P=0.000) arterial partial pressure of carbon dioxide (46.73 ± 8.78 mmHg vs. 54.26 ± 9.26 mmHg; t=3.339, P=0.00). Conclusion Qili-Qiangxin capsule can improve cardiac and pulmonary functions in heart failure patients with chronic pulmonary heart disease.

Objective:To evaluate the vital signs changes,influence factors in different grades of hy-pertension patients during the treatment of acute pulpitis,in order to obtain the risk prevention measures. Methods:In this study,90 different grades of hypertension patients with acute pulpitis were recruited from February 201 4 to February 201 5 in the Department of Oral Emergency,Peking University School and Hospital of Stomatology.The information about the patients’general health,oral treatment,life signs of change information was collected.Patients were divided into high risk group,middle risk group, and low risk group (30 patients for each group).Results:(1 )Compared with the preoperative,systolic blood pressure (90%),diastolic blood pressure (80%),heart rate increase (1 00%)were increased in the high risk group.The increase rates of the middle risk group and the low risk group were significantly lower than those of the high risk group (P<0.01 ).At the same time,the systolic blood pressure of 1 /4 (26.7%)patients in high risk group increased more than 20 mmHg (1 mmHg=0.1 33 kPa),and the diastolic blood pressure of 2/5 patients in high risk group increased more than 1 0 mmHg,the difference was statistically significant compared with the other two groups (P<0.05).(2)Compared with the pre-operative,the average increase of the maximum peak were increased [systolic blood pressure (1 8.0 ± 1 .5)mmHg,diastolic blood pressure (8.0 ±1 .7)mmHg],the mean of heart rate changes [(7.0 ± 0.3)beats per minute]was also increased in the high risk group,while these two indicators were de-creased in the low risk group and the middle risk group.The electrocardiogram (ECG)was changed in 6 cases during the treatment in the high risk group.No significantly changed were observed in the low risk group and the middle risk group.(3 ) Compared the risk assessment in preoperative with that in postoperative,in the middle risk group,23 cases were evaluated as medium risk in final evaluation,6 as low risk,and 1 as high risk (risk assessment increased);in the high risk group,20 cases were evaluated as high risk,7 as very high risk,and 3 as medium risk (risk assessment decreased).Conclusion:Oral treatment is very safe for patients with hypertension,but the risk factor,target organ damage,and com-plications will also increase the risk of cardiovascular events in elderly patients during the acute pulpitis treatment.Dentist should take some measures to avoid the risks.

Objective To monitor and analyze the antigenicity of Streptococcus pneumonia polysac-charide, its derivatives and conjugates by three immunological assays .Methods Inhibition ELISA and rate nephelometry(RN) were established for this study.Antigenicity of serotype 23F pneumococcal conjugates and their intermediates were analyzed by double immunodiffusion assay , inhibition ELISA and RN .The re-sults derived from three assays were comparatively analyzed to evaluate the changes of antigenicity during the preparing process of serotype 23F conjugate.Results Double immunodiffusion assay, inhibition ELISA and RN were all applicable to antigenicity analysis during the process of conjugate preparation .Inhibition ELISA could quantitatively detect a slight difference of polysaccharide antigenicity during the preparing process . Conclusion The antigenicity of polysaccharide during the preparing process of pneumococcal conjugates could be analytically monitored by using three immunological assays .This study provided evidence for suc-cessfully using immunological assays as the quality control means during the preparing process of pneumococ -cal conjugates .