Object\ To establish a method for the identification of Magnolia officinalis Rehd et Wils (Magnoliaceae) from its imitation the Ilex rotunda Thunb (Aquifoliacea) Methods\ By UV spectrophotometry Results\ The UV spectra of the two herbal drugs gave different maximum absorption peaks both in number and intensities Conclusion\ The method was both simple and accurate and can be used to distinguish one from the other

OBJECTIVE:To establish a method for determining the content of paeoniflorin in Xiaohe syrup. METHODS:HPLC method was adopted. The Waters SunFire C18 column was used with the mobile phase of acetonitrile-0.1% phosphoric acid(12∶88, V/V)at the flow rate of 1.2 ml/min;the detection wavelength was 230 nm with column temperature at 30℃. Sample size was 10μl . R E-SULTS:There was a good linear relationship between the amount of paeoniflorin and peak area in the range of 0.061 0-1 . 2 2 0 8 μg (r=0.999 9). The RSDs of precision,stability and reproducibility tests were all less than 2% and the average recovery was 98.77%(RSD=1.09%,n=6). CONCLUSIONS:The method is simple,rapid and accurate and can be used for the content deter-mination of paeoniflorin in Xiaohe Syrup.

Objective To study the effectiveness of ultrasonography in thyroidnodule disease detection and malignant/benign lesion differentiation during health check-up.Method Thyroid examination data of Peking Union Medical College Hospital(PUMCH)staff over the last 6 years were retrospectively reviewed.The results of thyroidnodule scanning by using ultrasonography were compared with the findings of physical examinations.Results Among 6348 health check-up receivers from 2006 to 2010,450 were found to have thyroidnodule(detection rate 7.09％).Twenty malignant lesions were confirmed in histological examinations(mean detection rate per year 0.38％).In 2011,1706 thyroid glands were scanned by both physical examination and ultrasonography,and 525 thyroidnodules were identified(detection rate 30.77％).Surgical operations were performed for 22 suspected malignant tumors,and 18 malignant lesions were finally confirmed(detection rate 1.06％).Conclusion Ultrasonography can improve the detection of thyroidnodule.Irregular shape,microcalcification,and rich blood-flow may indicate malignant nodules.

Objective To compare the differences of atria and atrial myocyte structure in patients with atrial fibrillation (AF) and sinus rhythm(SR) .To evaluate the influence of AF on cardiac function .Methods 79 patients without heart failure undergoing car-diopulmonary bypass surgery were divided into the AF group (n=39) and the SR group(n=40) .Echocardiography was performed for analysis of left ventricular end diastolic dimension(LVDd) ,left ventricular end-systolic dimension(LVDs) ,left ventricular poste-rior wall(LVPW) ,interventricular septum(IVS) and left atrial diameter(LAD) .Part of left atrial appendages was taken freshly for HE staining in order to observe atrial tissue structure .Results LVDd ,LVDs ,LVPW and IVS of the AF group were lower than that of the SR group .But LAD of the AF group was higher than the SR group .There was statistical significance in IVS and LAD between the two groups(P<0 .05) ,and there were no significant differences in other aspects (P>0 .05) .Compared with the SR group ,the AF group had thinner myocardial atrophy ,more obvious fibrosis ,smaller nucleus and darker HE staining .Conclusion The incidence of AF was mainly in rheumatic heart disease .The development of AF was mostly accompanied with the enlargement of LAD and the change of atrial tissue structure which showed that AF can reduce cardiac function .

Objective To discuss the impact of nursing intervention on self- care ability and health behavior of cancer patients with indwelling PICC in order to improve their life. Methods 218 cases of cancer patients with PICC catheter were randomly divided into the intervention group (107 patients)and the control group (111 patients),the control group were treated with conventional care, the intervention group was treated with targeted cognitive intervention by the PICC nurse specialists on the basis of conventional care. Interventions included improving health knowledge, self-concept, self-care responsibility and self-care skills in four areas, the intervention lasted 3 months. A questionnaire survey was conducted before and after intervention. Self-care skills and health behavior levels were compared between the two groups. Results Self-care skills and health behavior levels of the intervention group were significantly higher thanthose of the control group after intervention. Conclusions Targeted interventions can effectively improve the self-care capacity of outpatient oncology patients with PICC catheter and improve their health behaviors.

Objective To analyze the reasons of abnormal extubation for the chemotherapy patients with PICC,and put forward preventive measures. Methods A retrospective investigation was carried out about the reasons for abnormal extubation in 583 chemotherapy patients with PICC in our hospital from December 2007 to September 2009. Results There were 63 cases of abnormal extubation in 583 patients, accounted for 10.8% of the total number. The reasons of abnormal extubation included: catheter-related infection, misplacement,prolapse, dilapidation and fracture, catheter occlusion,thrombosis and abandoning treatment. Conclusions Complications caused by PICC are the main reasons for abnormal extubation. Important care measures to prevent and deal with kinds of complications timely can reduce the incidence of abnormal extubation.

Objective To know the attitude about palliative care and its influence factors in nurses.Methods Interviewed 8 nurses deeply by qualitative research to know their attitude about pallia-tive care.Results 4 theme,including 9 subtheme were found: nurses' negative emotion caused by job; imperfect of special organization and criterion; characteristics of nursing work.Conclusions Hospital managers should enhance training of nurses' coping capacity with bad feelings, death education and culti-vation of empathy; improve medicare system;develop palliative care routine ; establish palliative care orga-nizations, and relieve nurses' job burden and increase wages.

Objective To study conventional laparoscopic instruments line single hole peritoneoscope gallbladder excision and three hole laparoscopic cholecystectomy surgery efficacy and safety.Methods 140 cases patients with gallbladder stones in our hospital from January 2014 to June 2015 were selected as the research subjects.All patients need to be treated with cholecystectomy.All the patients according to the random number table were randomly divided into two groups,respectively for single hole group and three group.Single hole group using a single hole peritoneoscope gallbladder excision,triplex group use three hole laparoscopic gallbladder resection.The surgical effect,hospitalization costs and complications were compared between the two groups after treatment.Results Hole group operation time (87.89 ± 12.81) min,longer than the three-hole group (53.89 ± 8.91) min,but the hospital stay was (1.28 ± 0.21) d and total hospital costs (11 241.21 ± 23.91) yuan,were lower than three-hole group,P ＜ 0.05,the difference was statistical significance in the amount of bleeding in the two groups were not statistical significance,P ＞ 0.05;two groups of patients had complicatiom,but have been treated better,and two concurrent disease (1.43％ vs 2.86％) incidence was no significant difference,P ＞ 0.05.Conclusion Single hole laparoscopic cholecystectomy reduce the hospitalization time and hospitalization expenses,surgical trauma is smaller,postoperative recovery is faster,and the safety is high,it is worthy of clinical application.

Objectives To evaluate the association between serum cystatin C and carotid atherosclerosis.Methods Medical data,including physical examinations,serum levels of cystatin C,bilirubin,uric acid and other biochemical markers and duplex ultrasonographic scanning for the carotid artery,of 1741 healthy adults (1193 men and 548 women) who sought physical check-up at Peking Union Medical College Hospital during January 2010 and December 2011 were collected,and those with hypertension,diabetes and liver or renal function failure were excluded.Based on the results of carotid duplex uhrasonography,all the adults checked were assigned to two groups,one with thickened intima-media and atherosclerotic plaque (group A),the other with non-thickened intima-media and non-atherosclerotic plaque (group B).Difference in serum cystatin C,bilirubin,uric acid and other biochemical markers between the two groups was analyzed by using Student's t test.The correlation between the markers and carotid plaque was analyzed by using Spearman correlation analysis.The correlated factors of the carotid thickness and plaque appearance were analyzed by using unconditional Logistic regression analysis.Results Serum level of cystatin C was significantly increased in group A (t =-8.85,P ＜ 0.05).Thickness of carotid intima was positively correlated with serum cystatin C (r =0.21,P ＜ 0.05).In multivariate Logistic regression analysis,high level of serum cystatin C was not an independent risk factor of carotid atherosclerosis.Conclusion Relationship between serum cyatatin C and carotid atherosclerosis was not confirmed in our populations,which should be explored further in cohort studies.

Objective To analyze the latency of posture evoked response of normal lower limb muscle in different stimulations and explore its influencing factors. Methods The normal lower limb was induced to produce postural evoked response by the dynamic posturography through two kinds of perturbations, the supporting surface rotation stimulation (Toes-up and Toes-down) and the horizontal perturbation stimulation (Forward and Backward). The latencies of tibialis anterior muscle and gastrocnemius muscle were recorded by surface electromyography acquisition system. The differences of the left and right limb, gen-der and height on the latency of postural evoked response were analyzed. Results (1) Under the Toes-up and Backward perturbation, the latency of tibialis anterior muscle was longer than gastrocnemius muscle;under the Toes-down and Forward perturbation, the latency of gastrocnemius muscle was longer than tib-ialis anterior muscle. (2) The latencies of left limb and right limb had no significant difference. (3) The la-tency in male was longer than that in female. (4) The latency gradually increased with the increase of height. Conclusion In the postural evoked response, different perturbations, gender and height have sig-nificant impacts on the latency of posture evoked response of lower limb muscle. However, the effect of height and gender should be not considered referring to the same individual.